/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $NSVheader = fread($this->getid3->fp, 4); switch ($NSVheader) { case 'NSVs': if ($this->getNSVsHeaderFilepointer(0)) { $info['fileformat'] = 'nsv'; $info['audio']['dataformat'] = 'nsv'; $info['video']['dataformat'] = 'nsv'; $info['audio']['lossless'] = false; $info['video']['lossless'] = false; } break; case 'NSVf': if ($this->getNSVfHeaderFilepointer(0)) { $info['fileformat'] = 'nsv'; $info['audio']['dataformat'] = 'nsv'; $info['video']['dataformat'] = 'nsv'; $info['audio']['lossless'] = false; $info['video']['lossless'] = false; $this->getNSVsHeaderFilepointer($info['nsv']['NSVf']['header_length']); } break; default: $info['error'][] = 'Expecting "NSVs" or "NSVf" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($NSVheader) . '"'; return false; break; } if (!isset($info['nsv']['NSVf'])) { $info['warning'][] = 'NSVf header not present - cannot calculate playtime or bitrate'; } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $EXEheader = fread($this->getid3->fp, 28); $magic = 'MZ'; if (substr($EXEheader, 0, 2) != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes(substr($EXEheader, 0, 2)) . '"'; return false; } $info['fileformat'] = 'exe'; $info['exe']['mz']['magic'] = 'MZ'; $info['exe']['mz']['raw']['last_page_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 2, 2)); $info['exe']['mz']['raw']['page_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 4, 2)); $info['exe']['mz']['raw']['relocation_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 6, 2)); $info['exe']['mz']['raw']['header_paragraphs'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 8, 2)); $info['exe']['mz']['raw']['min_memory_paragraphs'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 10, 2)); $info['exe']['mz']['raw']['max_memory_paragraphs'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 12, 2)); $info['exe']['mz']['raw']['initial_ss'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 14, 2)); $info['exe']['mz']['raw']['initial_sp'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 16, 2)); $info['exe']['mz']['raw']['checksum'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 18, 2)); $info['exe']['mz']['raw']['cs_ip'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 20, 4)); $info['exe']['mz']['raw']['relocation_table_offset'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 24, 2)); $info['exe']['mz']['raw']['overlay_number'] = GetId3_Lib_Helper::LittleEndian2Int(substr($EXEheader, 26, 2)); $info['exe']['mz']['byte_size'] = ($info['exe']['mz']['raw']['page_count'] - 1) * 512 + $info['exe']['mz']['raw']['last_page_size']; $info['exe']['mz']['header_size'] = $info['exe']['mz']['raw']['header_paragraphs'] * 16; $info['exe']['mz']['memory_minimum'] = $info['exe']['mz']['raw']['min_memory_paragraphs'] * 16; $info['exe']['mz']['memory_recommended'] = $info['exe']['mz']['raw']['max_memory_paragraphs'] * 16; $info['error'][] = 'EXE parsing not enabled in this version of GetId3() [' . $this->getid3->version() . ']'; return false; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; $info['mpc']['header'] = array(); $thisfile_mpc_header =& $info['mpc']['header']; $info['fileformat'] = 'mpc'; $info['audio']['dataformat'] = 'mpc'; $info['audio']['bitrate_mode'] = 'vbr'; $info['audio']['channels'] = 2; // up to SV7 the format appears to have been hardcoded for stereo only $info['audio']['lossless'] = false; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $MPCheaderData = fread($this->getid3->fp, 4); $info['mpc']['header']['preamble'] = substr($MPCheaderData, 0, 4); // should be 'MPCK' (SV8) or 'MP+' (SV7), otherwise possible stream data (SV4-SV6) if (preg_match('#^MPCK#', $info['mpc']['header']['preamble'])) { // this is SV8 return $this->ParseMPCsv8(); } elseif (preg_match('#^MP\\+#', $info['mpc']['header']['preamble'])) { // this is SV7 return $this->ParseMPCsv7(); } elseif (preg_match('/^[\\x00\\x01\\x10\\x11\\x40\\x41\\x50\\x51\\x80\\x81\\x90\\x91\\xC0\\xC1\\xD0\\xD1][\\x20-37][\\x00\\x20\\x40\\x60\\x80\\xA0\\xC0\\xE0]/s', $MPCheaderData)) { // this is SV4 - SV6, handle seperately return $this->ParseMPCsv6(); } else { $info['error'][] = 'Expecting "MP+" or "MPCK" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes(substr($MPCheaderData, 0, 4)) . '"'; unset($info['fileformat']); unset($info['mpc']); return false; } return false; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $DSSheader = fread($this->getid3->fp, 1256); if (!preg_match('#^(\\x02|\\x03)dss#', $DSSheader)) { $info['error'][] = 'Expecting "[02-03] 64 73 73" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes(substr($DSSheader, 0, 4)) . '"'; return false; } // some structure information taken from http://cpansearch.perl.org/src/RGIBSON/Audio-DSS-0.02/lib/Audio/DSS.pm // shortcut $info['dss'] = array(); $thisfile_dss =& $info['dss']; $info['fileformat'] = 'dss'; $info['audio']['dataformat'] = 'dss'; $info['audio']['bitrate_mode'] = 'cbr'; //$thisfile_dss['encoding'] = 'ISO-8859-1'; $thisfile_dss['version'] = ord(substr($DSSheader, 0, 1)); $thisfile_dss['date_create'] = self::DSSdateStringToUnixDate(substr($DSSheader, 38, 12)); $thisfile_dss['date_complete'] = self::DSSdateStringToUnixDate(substr($DSSheader, 50, 12)); //$thisfile_dss['length'] = intval(substr($DSSheader, 62, 6)); // I thought time was in seconds, it's actually HHMMSS $thisfile_dss['length'] = intval(substr($DSSheader, 62, 2) * 3600 + substr($DSSheader, 64, 2) * 60 + substr($DSSheader, 66, 2)); $thisfile_dss['priority'] = ord(substr($DSSheader, 793, 1)); $thisfile_dss['comments'] = trim(substr($DSSheader, 798, 100)); //$info['audio']['bits_per_sample'] = ?; //$info['audio']['sample_rate'] = ?; $info['audio']['channels'] = 1; $info['playtime_seconds'] = $thisfile_dss['length']; $info['audio']['bitrate'] = $info['filesize'] * 8 / $info['playtime_seconds']; return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $SZIPHeader = fread($this->getid3->fp, 6); if (substr($SZIPHeader, 0, 4) != "SZ\n") { $info['error'][] = 'Expecting "53 5A 0A 04" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes(substr($SZIPHeader, 0, 4)) . '"'; return false; } $info['fileformat'] = 'szip'; $info['szip']['major_version'] = GetId3_Lib_Helper::BigEndian2Int(substr($SZIPHeader, 4, 1)); $info['szip']['minor_version'] = GetId3_Lib_Helper::BigEndian2Int(substr($SZIPHeader, 5, 1)); while (!feof($this->getid3->fp)) { $NextBlockID = fread($this->getid3->fp, 2); switch ($NextBlockID) { case 'SZ': // Note that szip files can be concatenated, this has the same effect as // concatenating the files. this also means that global header blocks // might be present between directory/data blocks. fseek($this->getid3->fp, 4, SEEK_CUR); break; case 'BH': $BHheaderbytes = GetId3_Lib_Helper::BigEndian2Int(fread($this->getid3->fp, 3)); $BHheaderdata = fread($this->getid3->fp, $BHheaderbytes); $BHheaderoffset = 0; while (strpos($BHheaderdata, "", $BHheaderoffset) > 0) { //filename as \0 terminated string (empty string indicates end) //owner as \0 terminated string (empty is same as last file) //group as \0 terminated string (empty is same as last file) //3 byte filelength in this block //2 byte access flags //4 byte creation time (like in unix) //4 byte modification time (like in unix) //4 byte access time (like in unix) $BHdataArray['filename'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, "")); $BHheaderoffset += strlen($BHdataArray['filename']) + 1; $BHdataArray['owner'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, "")); $BHheaderoffset += strlen($BHdataArray['owner']) + 1; $BHdataArray['group'] = substr($BHheaderdata, $BHheaderoffset, strcspn($BHheaderdata, "")); $BHheaderoffset += strlen($BHdataArray['group']) + 1; $BHdataArray['filelength'] = GetId3_Lib_Helper::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 3)); $BHheaderoffset += 3; $BHdataArray['access_flags'] = GetId3_Lib_Helper::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 2)); $BHheaderoffset += 2; $BHdataArray['creation_time'] = GetId3_Lib_Helper::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4)); $BHheaderoffset += 4; $BHdataArray['modification_time'] = GetId3_Lib_Helper::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4)); $BHheaderoffset += 4; $BHdataArray['access_time'] = GetId3_Lib_Helper::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4)); $BHheaderoffset += 4; $info['szip']['BH'][] = $BHdataArray; } break; default: break 2; } } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $RKAUHeader = fread($this->getid3->fp, 20); $magic = 'RKA'; if (substr($RKAUHeader, 0, 3) != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes(substr($RKAUHeader, 0, 3)) . '"'; return false; } $info['fileformat'] = 'rkau'; $info['audio']['dataformat'] = 'rkau'; $info['audio']['bitrate_mode'] = 'vbr'; $info['rkau']['raw']['version'] = GetId3_Lib_Helper::LittleEndian2Int(substr($RKAUHeader, 3, 1)); $info['rkau']['version'] = '1.' . str_pad($info['rkau']['raw']['version'] & 0xf, 2, '0', STR_PAD_LEFT); if ($info['rkau']['version'] > 1.07 || $info['rkau']['version'] < 1.06) { $info['error'][] = 'This version of GetId3() [' . $this->getid3->version() . '] can only parse RKAU files v1.06 and 1.07 (this file is v' . $info['rkau']['version'] . ')'; unset($info['rkau']); return false; } $info['rkau']['source_bytes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($RKAUHeader, 4, 4)); $info['rkau']['sample_rate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($RKAUHeader, 8, 4)); $info['rkau']['channels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($RKAUHeader, 12, 1)); $info['rkau']['bits_per_sample'] = GetId3_Lib_Helper::LittleEndian2Int(substr($RKAUHeader, 13, 1)); $info['rkau']['raw']['quality'] = GetId3_Lib_Helper::LittleEndian2Int(substr($RKAUHeader, 14, 1)); $this->RKAUqualityLookup($info['rkau']); $info['rkau']['raw']['flags'] = GetId3_Lib_Helper::LittleEndian2Int(substr($RKAUHeader, 15, 1)); $info['rkau']['flags']['joint_stereo'] = (bool) (!($info['rkau']['raw']['flags'] & 0x1)); $info['rkau']['flags']['streaming'] = (bool) ($info['rkau']['raw']['flags'] & 0x2); $info['rkau']['flags']['vrq_lossy_mode'] = (bool) ($info['rkau']['raw']['flags'] & 0x4); if ($info['rkau']['flags']['streaming']) { $info['avdataoffset'] += 20; $info['rkau']['compressed_bytes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($RKAUHeader, 16, 4)); } else { $info['avdataoffset'] += 16; $info['rkau']['compressed_bytes'] = $info['avdataend'] - $info['avdataoffset'] - 1; } // Note: compressed_bytes does not always equal what appears to be the actual number of compressed bytes, // sometimes it's more, sometimes less. No idea why(?) $info['audio']['lossless'] = $info['rkau']['lossless']; $info['audio']['channels'] = $info['rkau']['channels']; $info['audio']['bits_per_sample'] = $info['rkau']['bits_per_sample']; $info['audio']['sample_rate'] = $info['rkau']['sample_rate']; $info['playtime_seconds'] = $info['rkau']['source_bytes'] / ($info['rkau']['sample_rate'] * $info['rkau']['channels'] * ($info['rkau']['bits_per_sample'] / 8)); $info['audio']['bitrate'] = $info['rkau']['compressed_bytes'] * 8 / $info['playtime_seconds']; return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; $info['error'][] = 'Bink / Smacker files not properly processed by this version of GetId3() [' . $this->getid3->version() . ']'; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $fileTypeID = fread($this->getid3->fp, 3); switch ($fileTypeID) { case 'BIK': return $this->ParseBink(); break; case 'SMK': return $this->ParseSmacker(); break; default: $info['error'][] = 'Expecting "BIK" or "SMK" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($fileTypeID) . '"'; return false; break; } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $AUheader = fread($this->getid3->fp, 8); $magic = '.snd'; if (substr($AUheader, 0, 4) != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" (".snd") at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes(substr($AUheader, 0, 4)) . '"'; return false; } // shortcut $info['au'] = array(); $thisfile_au =& $info['au']; $info['fileformat'] = 'au'; $info['audio']['dataformat'] = 'au'; $info['audio']['bitrate_mode'] = 'cbr'; $thisfile_au['encoding'] = 'ISO-8859-1'; $thisfile_au['header_length'] = GetId3_Lib_Helper::BigEndian2Int(substr($AUheader, 4, 4)); $AUheader .= fread($this->getid3->fp, $thisfile_au['header_length'] - 8); $info['avdataoffset'] += $thisfile_au['header_length']; $thisfile_au['data_size'] = GetId3_Lib_Helper::BigEndian2Int(substr($AUheader, 8, 4)); $thisfile_au['data_format_id'] = GetId3_Lib_Helper::BigEndian2Int(substr($AUheader, 12, 4)); $thisfile_au['sample_rate'] = GetId3_Lib_Helper::BigEndian2Int(substr($AUheader, 16, 4)); $thisfile_au['channels'] = GetId3_Lib_Helper::BigEndian2Int(substr($AUheader, 20, 4)); $thisfile_au['comments']['comment'][] = trim(substr($AUheader, 24)); $thisfile_au['data_format'] = $this->AUdataFormatNameLookup($thisfile_au['data_format_id']); $thisfile_au['used_bits_per_sample'] = $this->AUdataFormatUsedBitsPerSampleLookup($thisfile_au['data_format_id']); if ($thisfile_au['bits_per_sample'] = $this->AUdataFormatBitsPerSampleLookup($thisfile_au['data_format_id'])) { $info['audio']['bits_per_sample'] = $thisfile_au['bits_per_sample']; } else { unset($thisfile_au['bits_per_sample']); } $info['audio']['sample_rate'] = $thisfile_au['sample_rate']; $info['audio']['channels'] = $thisfile_au['channels']; if ($info['avdataoffset'] + $thisfile_au['data_size'] > $info['avdataend']) { $info['warning'][] = 'Possible truncated file - expecting "' . $thisfile_au['data_size'] . '" bytes of audio data, only found ' . ($info['avdataend'] - $info['avdataoffset']) . ' bytes"'; } $info['playtime_seconds'] = $thisfile_au['data_size'] / ($thisfile_au['sample_rate'] * $thisfile_au['channels'] * ($thisfile_au['used_bits_per_sample'] / 8)); $info['audio']['bitrate'] = $thisfile_au['data_size'] * 8 / $info['playtime_seconds']; return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; // initialize these values to an empty array, otherwise they default to NULL // and you can't append array values to a NULL value $info['riff'] = array('raw' => array()); // Shortcuts $thisfile_riff =& $info['riff']; $thisfile_riff_raw =& $thisfile_riff['raw']; $thisfile_audio =& $info['audio']; $thisfile_video =& $info['video']; $thisfile_audio_dataformat =& $thisfile_audio['dataformat']; $thisfile_riff_audio =& $thisfile_riff['audio']; $thisfile_riff_video =& $thisfile_riff['video']; $Original['avdataoffset'] = $info['avdataoffset']; $Original['avdataend'] = $info['avdataend']; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $RIFFheader = fread($this->getid3->fp, 12); $RIFFsubtype = substr($RIFFheader, 8, 4); switch (substr($RIFFheader, 0, 4)) { case 'FORM': $info['fileformat'] = 'aiff'; $thisfile_riff['header_size'] = $this->EitherEndian2Int(substr($RIFFheader, 4, 4)); $thisfile_riff[$RIFFsubtype] = $this->ParseRIFF($info['avdataoffset'] + 12, $info['avdataoffset'] + $thisfile_riff['header_size']); break; case 'RIFF': // AVI, WAV, etc // AVI, WAV, etc case 'SDSS': // SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com) // SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com) case 'RMP3': // RMP3 is identical to RIFF, just renamed. Used by [unknown program] when creating RIFF-MP3s $info['fileformat'] = 'riff'; $thisfile_riff['header_size'] = $this->EitherEndian2Int(substr($RIFFheader, 4, 4)); if ($RIFFsubtype == 'RMP3') { // RMP3 is identical to WAVE, just renamed. Used by [unknown program] when creating RIFF-MP3s $RIFFsubtype = 'WAVE'; } $thisfile_riff[$RIFFsubtype] = $this->ParseRIFF($info['avdataoffset'] + 12, $info['avdataoffset'] + $thisfile_riff['header_size']); if ($info['avdataend'] - $info['filesize'] == 1) { // LiteWave appears to incorrectly *not* pad actual output file // to nearest WORD boundary so may appear to be short by one // byte, in which case - skip warning $info['avdataend'] = $info['filesize']; } $nextRIFFoffset = $Original['avdataoffset'] + 8 + $thisfile_riff['header_size']; // 8 = "RIFF" + 32-bit offset while ($nextRIFFoffset < min($info['filesize'], $info['avdataend'])) { if (!GetId3_Lib_Helper::intValueSupported($nextRIFFoffset + 1024)) { $info['error'][] = 'AVI extends beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB and PHP filesystem functions cannot read that far, playtime is probably wrong'; $info['warning'][] = '[avdataend] value may be incorrect, multiple AVIX chunks may be present'; break; } else { fseek($this->getid3->fp, $nextRIFFoffset, SEEK_SET); $nextRIFFheader = fread($this->getid3->fp, 12); if ($nextRIFFoffset == $info['avdataend'] - 1) { if (substr($nextRIFFheader, 0, 1) == "") { // RIFF padded to WORD boundary, we're actually already at the end break; } } $nextRIFFheaderID = substr($nextRIFFheader, 0, 4); $nextRIFFsize = $this->EitherEndian2Int(substr($nextRIFFheader, 4, 4)); $nextRIFFtype = substr($nextRIFFheader, 8, 4); $chunkdata = array(); $chunkdata['offset'] = $nextRIFFoffset + 8; $chunkdata['size'] = $nextRIFFsize; $nextRIFFoffset = $chunkdata['offset'] + $chunkdata['size']; switch ($nextRIFFheaderID) { case 'RIFF': $info['avdataend'] = $nextRIFFoffset; if (!GetId3_Lib_Helper::intValueSupported($info['avdataend'])) { $info['error'][] = 'AVI extends beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB and PHP filesystem functions cannot read that far, playtime is probably wrong'; $info['warning'][] = '[avdataend] value may be incorrect, multiple AVIX chunks may be present'; } $chunkdata['chunks'] = $this->ParseRIFF($chunkdata['offset'] + 4, $chunkdata['offset'] + $chunkdata['size']); if (!isset($thisfile_riff[$nextRIFFtype])) { $thisfile_riff[$nextRIFFtype] = array(); } $thisfile_riff[$nextRIFFtype][] = $chunkdata; break; case 'JUNK': // ignore $thisfile_riff[$nextRIFFheaderID][] = $chunkdata; break; default: if ($info['filesize'] == $chunkdata['offset'] - 8 + 128) { $DIVXTAG = $nextRIFFheader . fread($this->getid3->fp, 128 - 12); if (substr($DIVXTAG, -7) == 'DIVXTAG') { // DIVXTAG is supposed to be inside an IDVX chunk in a LIST chunk, but some bad encoders just slap it on the end of a file $info['warning'][] = 'Found wrongly-structured DIVXTAG at offset ' . (ftell($this->getid3->fp) - 128 + 12) . ', parsing anyway'; $thisfile_riff['DIVXTAG'] = $this->ParseDIVXTAG($DIVXTAG); foreach ($thisfile_riff['DIVXTAG'] as $key => $value) { if ($value && !preg_match('#_id$#', $key)) { $thisfile_riff['comments'][$key][] = $value; } } break 2; } } $info['warning'][] = 'expecting "RIFF" or "JUNK" at ' . $nextRIFFoffset . ', found ' . GetId3_Lib_Helper::PrintHexBytes(substr($nextRIFFheader, 0, 4)) . ' - skipping rest of file'; break 2; } } } if ($RIFFsubtype == 'WAVE') { $thisfile_riff_WAVE =& $thisfile_riff['WAVE']; } break; default: $info['error'][] = 'Cannot parse RIFF (this is maybe not a RIFF / WAV / AVI file?) - expecting "FORM|RIFF|SDSS|RMP3" found "' . $RIFFsubtype . '" instead'; unset($info['fileformat']); return false; break; } $streamindex = 0; switch ($RIFFsubtype) { case 'WAVE': if (empty($thisfile_audio['bitrate_mode'])) { $thisfile_audio['bitrate_mode'] = 'cbr'; } if (empty($thisfile_audio_dataformat)) { $thisfile_audio_dataformat = 'wav'; } if (isset($thisfile_riff_WAVE['data'][0]['offset'])) { $info['avdataoffset'] = $thisfile_riff_WAVE['data'][0]['offset'] + 8; $info['avdataend'] = $info['avdataoffset'] + $thisfile_riff_WAVE['data'][0]['size']; } if (isset($thisfile_riff_WAVE['fmt '][0]['data'])) { $thisfile_riff_audio[$streamindex] = self::RIFFparseWAVEFORMATex($thisfile_riff_WAVE['fmt '][0]['data']); $thisfile_audio['wformattag'] = $thisfile_riff_audio[$streamindex]['raw']['wFormatTag']; if (!isset($thisfile_riff_audio[$streamindex]['bitrate']) || $thisfile_riff_audio[$streamindex]['bitrate'] == 0) { $info['error'][] = 'Corrupt RIFF file: bitrate_audio == zero'; return false; } $thisfile_riff_raw['fmt '] = $thisfile_riff_audio[$streamindex]['raw']; unset($thisfile_riff_audio[$streamindex]['raw']); $thisfile_audio['streams'][$streamindex] = $thisfile_riff_audio[$streamindex]; $thisfile_audio = GetId3_Lib_Helper::array_merge_noclobber($thisfile_audio, $thisfile_riff_audio[$streamindex]); if (substr($thisfile_audio['codec'], 0, strlen('unknown: 0x')) == 'unknown: 0x') { $info['warning'][] = 'Audio codec = ' . $thisfile_audio['codec']; } $thisfile_audio['bitrate'] = $thisfile_riff_audio[$streamindex]['bitrate']; $info['playtime_seconds'] = (double) (($info['avdataend'] - $info['avdataoffset']) * 8 / $thisfile_audio['bitrate']); $thisfile_audio['lossless'] = false; if (isset($thisfile_riff_WAVE['data'][0]['offset']) && isset($thisfile_riff_raw['fmt ']['wFormatTag'])) { switch ($thisfile_riff_raw['fmt ']['wFormatTag']) { case 0x1: // PCM $thisfile_audio['lossless'] = true; break; case 0x2000: // AC-3 $thisfile_audio_dataformat = 'ac3'; break; default: // do nothing break; } } $thisfile_audio['streams'][$streamindex]['wformattag'] = $thisfile_audio['wformattag']; $thisfile_audio['streams'][$streamindex]['bitrate_mode'] = $thisfile_audio['bitrate_mode']; $thisfile_audio['streams'][$streamindex]['lossless'] = $thisfile_audio['lossless']; $thisfile_audio['streams'][$streamindex]['dataformat'] = $thisfile_audio_dataformat; } if (isset($thisfile_riff_WAVE['rgad'][0]['data'])) { // shortcuts $rgadData =& $thisfile_riff_WAVE['rgad'][0]['data']; $thisfile_riff_raw['rgad'] = array('track' => array(), 'album' => array()); $thisfile_riff_raw_rgad =& $thisfile_riff_raw['rgad']; $thisfile_riff_raw_rgad_track =& $thisfile_riff_raw_rgad['track']; $thisfile_riff_raw_rgad_album =& $thisfile_riff_raw_rgad['album']; $thisfile_riff_raw_rgad['fPeakAmplitude'] = GetId3_Lib_Helper::LittleEndian2Float(substr($rgadData, 0, 4)); $thisfile_riff_raw_rgad['nRadioRgAdjust'] = $this->EitherEndian2Int(substr($rgadData, 4, 2)); $thisfile_riff_raw_rgad['nAudiophileRgAdjust'] = $this->EitherEndian2Int(substr($rgadData, 6, 2)); $nRadioRgAdjustBitstring = str_pad(GetId3_Lib_Helper::Dec2Bin($thisfile_riff_raw_rgad['nRadioRgAdjust']), 16, '0', STR_PAD_LEFT); $nAudiophileRgAdjustBitstring = str_pad(GetId3_Lib_Helper::Dec2Bin($thisfile_riff_raw_rgad['nAudiophileRgAdjust']), 16, '0', STR_PAD_LEFT); $thisfile_riff_raw_rgad_track['name'] = GetId3_Lib_Helper::Bin2Dec(substr($nRadioRgAdjustBitstring, 0, 3)); $thisfile_riff_raw_rgad_track['originator'] = GetId3_Lib_Helper::Bin2Dec(substr($nRadioRgAdjustBitstring, 3, 3)); $thisfile_riff_raw_rgad_track['signbit'] = GetId3_Lib_Helper::Bin2Dec(substr($nRadioRgAdjustBitstring, 6, 1)); $thisfile_riff_raw_rgad_track['adjustment'] = GetId3_Lib_Helper::Bin2Dec(substr($nRadioRgAdjustBitstring, 7, 9)); $thisfile_riff_raw_rgad_album['name'] = GetId3_Lib_Helper::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 0, 3)); $thisfile_riff_raw_rgad_album['originator'] = GetId3_Lib_Helper::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 3, 3)); $thisfile_riff_raw_rgad_album['signbit'] = GetId3_Lib_Helper::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 6, 1)); $thisfile_riff_raw_rgad_album['adjustment'] = GetId3_Lib_Helper::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 7, 9)); $thisfile_riff['rgad']['peakamplitude'] = $thisfile_riff_raw_rgad['fPeakAmplitude']; if ($thisfile_riff_raw_rgad_track['name'] != 0 && $thisfile_riff_raw_rgad_track['originator'] != 0) { $thisfile_riff['rgad']['track']['name'] = GetId3_Lib_Helper::RGADnameLookup($thisfile_riff_raw_rgad_track['name']); $thisfile_riff['rgad']['track']['originator'] = GetId3_Lib_Helper::RGADoriginatorLookup($thisfile_riff_raw_rgad_track['originator']); $thisfile_riff['rgad']['track']['adjustment'] = GetId3_Lib_Helper::RGADadjustmentLookup($thisfile_riff_raw_rgad_track['adjustment'], $thisfile_riff_raw_rgad_track['signbit']); } if ($thisfile_riff_raw_rgad_album['name'] != 0 && $thisfile_riff_raw_rgad_album['originator'] != 0) { $thisfile_riff['rgad']['album']['name'] = GetId3_Lib_Helper::RGADnameLookup($thisfile_riff_raw_rgad_album['name']); $thisfile_riff['rgad']['album']['originator'] = GetId3_Lib_Helper::RGADoriginatorLookup($thisfile_riff_raw_rgad_album['originator']); $thisfile_riff['rgad']['album']['adjustment'] = GetId3_Lib_Helper::RGADadjustmentLookup($thisfile_riff_raw_rgad_album['adjustment'], $thisfile_riff_raw_rgad_album['signbit']); } } if (isset($thisfile_riff_WAVE['fact'][0]['data'])) { $thisfile_riff_raw['fact']['NumberOfSamples'] = $this->EitherEndian2Int(substr($thisfile_riff_WAVE['fact'][0]['data'], 0, 4)); // This should be a good way of calculating exact playtime, // but some sample files have had incorrect number of samples, // so cannot use this method // if (!empty($thisfile_riff_raw['fmt ']['nSamplesPerSec'])) { // $info['playtime_seconds'] = (float) $thisfile_riff_raw['fact']['NumberOfSamples'] / $thisfile_riff_raw['fmt ']['nSamplesPerSec']; // } } if (!empty($thisfile_riff_raw['fmt ']['nAvgBytesPerSec'])) { $thisfile_audio['bitrate'] = GetId3_Lib_Helper::CastAsInt($thisfile_riff_raw['fmt ']['nAvgBytesPerSec'] * 8); } if (isset($thisfile_riff_WAVE['bext'][0]['data'])) { // shortcut $thisfile_riff_WAVE_bext_0 =& $thisfile_riff_WAVE['bext'][0]; $thisfile_riff_WAVE_bext_0['title'] = trim(substr($thisfile_riff_WAVE_bext_0['data'], 0, 256)); $thisfile_riff_WAVE_bext_0['author'] = trim(substr($thisfile_riff_WAVE_bext_0['data'], 256, 32)); $thisfile_riff_WAVE_bext_0['reference'] = trim(substr($thisfile_riff_WAVE_bext_0['data'], 288, 32)); $thisfile_riff_WAVE_bext_0['origin_date'] = substr($thisfile_riff_WAVE_bext_0['data'], 320, 10); $thisfile_riff_WAVE_bext_0['origin_time'] = substr($thisfile_riff_WAVE_bext_0['data'], 330, 8); $thisfile_riff_WAVE_bext_0['time_reference'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_bext_0['data'], 338, 8)); $thisfile_riff_WAVE_bext_0['bwf_version'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_bext_0['data'], 346, 1)); $thisfile_riff_WAVE_bext_0['reserved'] = substr($thisfile_riff_WAVE_bext_0['data'], 347, 254); $thisfile_riff_WAVE_bext_0['coding_history'] = explode("\r\n", trim(substr($thisfile_riff_WAVE_bext_0['data'], 601))); if (preg_match('#^([0-9]{4}).([0-9]{2}).([0-9]{2})$#', $thisfile_riff_WAVE_bext_0['origin_date'], $matches_bext_date)) { if (preg_match('#^([0-9]{2}).([0-9]{2}).([0-9]{2})$#', $thisfile_riff_WAVE_bext_0['origin_time'], $matches_bext_time)) { list($dummy, $bext_timestamp['year'], $bext_timestamp['month'], $bext_timestamp['day']) = $matches_bext_date; list($dummy, $bext_timestamp['hour'], $bext_timestamp['minute'], $bext_timestamp['second']) = $matches_bext_time; $thisfile_riff_WAVE_bext_0['origin_date_unix'] = gmmktime($bext_timestamp['hour'], $bext_timestamp['minute'], $bext_timestamp['second'], $bext_timestamp['month'], $bext_timestamp['day'], $bext_timestamp['year']); } else { $info['warning'][] = 'RIFF.WAVE.BEXT.origin_time is invalid'; } } else { $info['warning'][] = 'RIFF.WAVE.BEXT.origin_date is invalid'; } $thisfile_riff['comments']['author'][] = $thisfile_riff_WAVE_bext_0['author']; $thisfile_riff['comments']['title'][] = $thisfile_riff_WAVE_bext_0['title']; } if (isset($thisfile_riff_WAVE['MEXT'][0]['data'])) { // shortcut $thisfile_riff_WAVE_MEXT_0 =& $thisfile_riff_WAVE['MEXT'][0]; $thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 0, 2)); $thisfile_riff_WAVE_MEXT_0['flags']['homogenous'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x1); if ($thisfile_riff_WAVE_MEXT_0['flags']['homogenous']) { $thisfile_riff_WAVE_MEXT_0['flags']['padding'] = $thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x2 ? false : true; $thisfile_riff_WAVE_MEXT_0['flags']['22_or_44'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x4); $thisfile_riff_WAVE_MEXT_0['flags']['free_format'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x8); $thisfile_riff_WAVE_MEXT_0['nominal_frame_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 2, 2)); } $thisfile_riff_WAVE_MEXT_0['anciliary_data_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 6, 2)); $thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 8, 2)); $thisfile_riff_WAVE_MEXT_0['flags']['anciliary_data_left'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] & 0x1); $thisfile_riff_WAVE_MEXT_0['flags']['anciliary_data_free'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] & 0x2); $thisfile_riff_WAVE_MEXT_0['flags']['anciliary_data_right'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] & 0x4); } if (isset($thisfile_riff_WAVE['cart'][0]['data'])) { // shortcut $thisfile_riff_WAVE_cart_0 =& $thisfile_riff_WAVE['cart'][0]; $thisfile_riff_WAVE_cart_0['version'] = substr($thisfile_riff_WAVE_cart_0['data'], 0, 4); $thisfile_riff_WAVE_cart_0['title'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 4, 64)); $thisfile_riff_WAVE_cart_0['artist'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 68, 64)); $thisfile_riff_WAVE_cart_0['cut_id'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 132, 64)); $thisfile_riff_WAVE_cart_0['client_id'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 196, 64)); $thisfile_riff_WAVE_cart_0['category'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 260, 64)); $thisfile_riff_WAVE_cart_0['classification'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 324, 64)); $thisfile_riff_WAVE_cart_0['out_cue'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 388, 64)); $thisfile_riff_WAVE_cart_0['start_date'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 452, 10)); $thisfile_riff_WAVE_cart_0['start_time'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 462, 8)); $thisfile_riff_WAVE_cart_0['end_date'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 470, 10)); $thisfile_riff_WAVE_cart_0['end_time'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 480, 8)); $thisfile_riff_WAVE_cart_0['producer_app_id'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 488, 64)); $thisfile_riff_WAVE_cart_0['producer_app_version'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 552, 64)); $thisfile_riff_WAVE_cart_0['user_defined_text'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 616, 64)); $thisfile_riff_WAVE_cart_0['zero_db_reference'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_cart_0['data'], 680, 4), true); for ($i = 0; $i < 8; $i++) { $thisfile_riff_WAVE_cart_0['post_time'][$i]['usage_fourcc'] = substr($thisfile_riff_WAVE_cart_0['data'], 684 + $i * 8, 4); $thisfile_riff_WAVE_cart_0['post_time'][$i]['timer_value'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_cart_0['data'], 684 + $i * 8 + 4, 4)); } $thisfile_riff_WAVE_cart_0['url'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 748, 1024)); $thisfile_riff_WAVE_cart_0['tag_text'] = explode("\r\n", trim(substr($thisfile_riff_WAVE_cart_0['data'], 1772))); $thisfile_riff['comments']['artist'][] = $thisfile_riff_WAVE_cart_0['artist']; $thisfile_riff['comments']['title'][] = $thisfile_riff_WAVE_cart_0['title']; } if (isset($thisfile_riff_WAVE['SNDM'][0]['data'])) { // SoundMiner metadata // shortcuts $thisfile_riff_WAVE_SNDM_0 =& $thisfile_riff_WAVE['SNDM'][0]; $thisfile_riff_WAVE_SNDM_0_data =& $thisfile_riff_WAVE_SNDM_0['data']; $SNDM_startoffset = 0; $SNDM_endoffset = $thisfile_riff_WAVE_SNDM_0['size']; while ($SNDM_startoffset < $SNDM_endoffset) { $SNDM_thisTagOffset = 0; $SNDM_thisTagSize = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 4)); $SNDM_thisTagOffset += 4; $SNDM_thisTagKey = substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 4); $SNDM_thisTagOffset += 4; $SNDM_thisTagDataSize = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 2)); $SNDM_thisTagOffset += 2; $SNDM_thisTagDataFlags = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 2)); $SNDM_thisTagOffset += 2; $SNDM_thisTagDataText = substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, $SNDM_thisTagDataSize); $SNDM_thisTagOffset += $SNDM_thisTagDataSize; if ($SNDM_thisTagSize != 4 + 4 + 2 + 2 + $SNDM_thisTagDataSize) { $info['warning'][] = 'RIFF.WAVE.SNDM.data contains tag not expected length (expected: ' . $SNDM_thisTagSize . ', found: ' . (4 + 4 + 2 + 2 + $SNDM_thisTagDataSize) . ') at offset ' . $SNDM_startoffset . ' (file offset ' . ($thisfile_riff_WAVE_SNDM_0['offset'] + $SNDM_startoffset) . ')'; break; } elseif ($SNDM_thisTagSize <= 0) { $info['warning'][] = 'RIFF.WAVE.SNDM.data contains zero-size tag at offset ' . $SNDM_startoffset . ' (file offset ' . ($thisfile_riff_WAVE_SNDM_0['offset'] + $SNDM_startoffset) . ')'; break; } $SNDM_startoffset += $SNDM_thisTagSize; $thisfile_riff_WAVE_SNDM_0['parsed_raw'][$SNDM_thisTagKey] = $SNDM_thisTagDataText; if ($parsedkey = $this->RIFFwaveSNDMtagLookup($SNDM_thisTagKey)) { $thisfile_riff_WAVE_SNDM_0['parsed'][$parsedkey] = $SNDM_thisTagDataText; } else { $info['warning'][] = 'RIFF.WAVE.SNDM contains unknown tag "' . $SNDM_thisTagKey . '" at offset ' . $SNDM_startoffset . ' (file offset ' . ($thisfile_riff_WAVE_SNDM_0['offset'] + $SNDM_startoffset) . ')'; } } $tagmapping = array('tracktitle' => 'title', 'category' => 'genre', 'cdtitle' => 'album', 'tracktitle' => 'title'); foreach ($tagmapping as $fromkey => $tokey) { if (isset($thisfile_riff_WAVE_SNDM_0['parsed'][$fromkey])) { $thisfile_riff['comments'][$tokey][] = $thisfile_riff_WAVE_SNDM_0['parsed'][$fromkey]; } } } if (isset($thisfile_riff_WAVE['iXML'][0]['data'])) { // requires functions simplexml_load_string and get_object_vars if ($parsedXML = GetId3_Lib_Helper::XML2array($thisfile_riff_WAVE['iXML'][0]['data'])) { $thisfile_riff_WAVE['iXML'][0]['parsed'] = $parsedXML; if (isset($parsedXML['SPEED']['MASTER_SPEED'])) { @(list($numerator, $denominator) = explode('/', $parsedXML['SPEED']['MASTER_SPEED'])); $thisfile_riff_WAVE['iXML'][0]['master_speed'] = $numerator / ($denominator ? $denominator : 1000); } if (isset($parsedXML['SPEED']['TIMECODE_RATE'])) { @(list($numerator, $denominator) = explode('/', $parsedXML['SPEED']['TIMECODE_RATE'])); $thisfile_riff_WAVE['iXML'][0]['timecode_rate'] = $numerator / ($denominator ? $denominator : 1000); } if (isset($parsedXML['SPEED']['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_LO']) && !empty($parsedXML['SPEED']['TIMESTAMP_SAMPLE_RATE']) && !empty($thisfile_riff_WAVE['iXML'][0]['timecode_rate'])) { $samples_since_midnight = floatval(ltrim($parsedXML['SPEED']['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_HI'] . $parsedXML['SPEED']['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_LO'], '0')); $thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] = $samples_since_midnight / $parsedXML['SPEED']['TIMESTAMP_SAMPLE_RATE']; $h = floor($thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] / 3600); $m = floor(($thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] - $h * 3600) / 60); $s = floor($thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] - $h * 3600 - $m * 60); $f = ($thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] - $h * 3600 - $m * 60 - $s) * $thisfile_riff_WAVE['iXML'][0]['timecode_rate']; $thisfile_riff_WAVE['iXML'][0]['timecode_string'] = sprintf('%02d:%02d:%02d:%05.2f', $h, $m, $s, $f); $thisfile_riff_WAVE['iXML'][0]['timecode_string_round'] = sprintf('%02d:%02d:%02d:%02d', $h, $m, $s, round($f)); } unset($parsedXML); } } if (!isset($thisfile_audio['bitrate']) && isset($thisfile_riff_audio[$streamindex]['bitrate'])) { $thisfile_audio['bitrate'] = $thisfile_riff_audio[$streamindex]['bitrate']; $info['playtime_seconds'] = (double) (($info['avdataend'] - $info['avdataoffset']) * 8 / $thisfile_audio['bitrate']); } if (!empty($info['wavpack'])) { $thisfile_audio_dataformat = 'wavpack'; $thisfile_audio['bitrate_mode'] = 'vbr'; $thisfile_audio['encoder'] = 'WavPack v' . $info['wavpack']['version']; // Reset to the way it was - RIFF parsing will have messed this up $info['avdataend'] = $Original['avdataend']; $thisfile_audio['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; fseek($this->getid3->fp, $info['avdataoffset'] - 44, SEEK_SET); $RIFFdata = fread($this->getid3->fp, 44); $OrignalRIFFheaderSize = GetId3_Lib_Helper::LittleEndian2Int(substr($RIFFdata, 4, 4)) + 8; $OrignalRIFFdataSize = GetId3_Lib_Helper::LittleEndian2Int(substr($RIFFdata, 40, 4)) + 44; if ($OrignalRIFFheaderSize > $OrignalRIFFdataSize) { $info['avdataend'] -= $OrignalRIFFheaderSize - $OrignalRIFFdataSize; fseek($this->getid3->fp, $info['avdataend'], SEEK_SET); $RIFFdata .= fread($this->getid3->fp, $OrignalRIFFheaderSize - $OrignalRIFFdataSize); } // move the data chunk after all other chunks (if any) // so that the RIFF parser doesn't see EOF when trying // to skip over the data chunk $RIFFdata = substr($RIFFdata, 0, 36) . substr($RIFFdata, 44) . substr($RIFFdata, 36, 8); $getid3_riff = new GetId3_Module_AudioVideo_Riff($this->getid3); $getid3_riff->ParseRIFFdata($RIFFdata); unset($getid3_riff); } if (isset($thisfile_riff_raw['fmt ']['wFormatTag'])) { switch ($thisfile_riff_raw['fmt ']['wFormatTag']) { case 0x1: // PCM if (!empty($info['ac3'])) { // Dolby Digital WAV files masquerade as PCM-WAV, but they're not $thisfile_audio['wformattag'] = 0x2000; $thisfile_audio['codec'] = $this->RIFFwFormatTagLookup($thisfile_audio['wformattag']); $thisfile_audio['lossless'] = false; $thisfile_audio['bitrate'] = $info['ac3']['bitrate']; $thisfile_audio['sample_rate'] = $info['ac3']['sample_rate']; } break; case 0x8ae: // ClearJump LiteWave $thisfile_audio['bitrate_mode'] = 'vbr'; $thisfile_audio_dataformat = 'litewave'; //typedef struct tagSLwFormat { // WORD m_wCompFormat; // low byte defines compression method, high byte is compression flags // DWORD m_dwScale; // scale factor for lossy compression // DWORD m_dwBlockSize; // number of samples in encoded blocks // WORD m_wQuality; // alias for the scale factor // WORD m_wMarkDistance; // distance between marks in bytes // WORD m_wReserved; // // //following paramters are ignored if CF_FILESRC is not set // DWORD m_dwOrgSize; // original file size in bytes // WORD m_bFactExists; // indicates if 'fact' chunk exists in the original file // DWORD m_dwRiffChunkSize; // riff chunk size in the original file // // PCMWAVEFORMAT m_OrgWf; // original wave format // }SLwFormat, *PSLwFormat; // shortcut $thisfile_riff['litewave']['raw'] = array(); $thisfile_riff_litewave =& $thisfile_riff['litewave']; $thisfile_riff_litewave_raw =& $thisfile_riff_litewave['raw']; $thisfile_riff_litewave_raw['compression_method'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 18, 1)); $thisfile_riff_litewave_raw['compression_flags'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 19, 1)); $thisfile_riff_litewave_raw['m_dwScale'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 20, 4)); $thisfile_riff_litewave_raw['m_dwBlockSize'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 24, 4)); $thisfile_riff_litewave_raw['m_wQuality'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 28, 2)); $thisfile_riff_litewave_raw['m_wMarkDistance'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 30, 2)); $thisfile_riff_litewave_raw['m_wReserved'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 32, 2)); $thisfile_riff_litewave_raw['m_dwOrgSize'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 34, 4)); $thisfile_riff_litewave_raw['m_bFactExists'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 38, 2)); $thisfile_riff_litewave_raw['m_dwRiffChunkSize'] = GetId3_Lib_Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 40, 4)); //$thisfile_riff_litewave['quality_factor'] = intval(round((2000 - $thisfile_riff_litewave_raw['m_dwScale']) / 20)); $thisfile_riff_litewave['quality_factor'] = $thisfile_riff_litewave_raw['m_wQuality']; $thisfile_riff_litewave['flags']['raw_source'] = $thisfile_riff_litewave_raw['compression_flags'] & 0x1 ? false : true; $thisfile_riff_litewave['flags']['vbr_blocksize'] = $thisfile_riff_litewave_raw['compression_flags'] & 0x2 ? false : true; $thisfile_riff_litewave['flags']['seekpoints'] = (bool) ($thisfile_riff_litewave_raw['compression_flags'] & 0x4); $thisfile_audio['lossless'] = $thisfile_riff_litewave_raw['m_wQuality'] == 100 ? true : false; $thisfile_audio['encoder_options'] = '-q' . $thisfile_riff_litewave['quality_factor']; break; default: break; } } if ($info['avdataend'] > $info['filesize']) { switch (!empty($thisfile_audio_dataformat) ? $thisfile_audio_dataformat : '') { case 'wavpack': // WavPack // WavPack case 'lpac': // LPAC // LPAC case 'ofr': // OptimFROG // OptimFROG case 'ofs': // OptimFROG DualStream // lossless compressed audio formats that keep original RIFF headers - skip warning break; case 'litewave': if ($info['avdataend'] - $info['filesize'] == 1) { // LiteWave appears to incorrectly *not* pad actual output file // to nearest WORD boundary so may appear to be short by one // byte, in which case - skip warning } else { // Short by more than one byte, throw warning $info['warning'][] = 'Probably truncated file - expecting ' . $thisfile_riff[$RIFFsubtype]['data'][0]['size'] . ' bytes of data, only found ' . ($info['filesize'] - $info['avdataoffset']) . ' (short by ' . ($thisfile_riff[$RIFFsubtype]['data'][0]['size'] - ($info['filesize'] - $info['avdataoffset'])) . ' bytes)'; $info['avdataend'] = $info['filesize']; } break; default: if ($info['avdataend'] - $info['filesize'] == 1 && $thisfile_riff[$RIFFsubtype]['data'][0]['size'] % 2 == 0 && ($info['filesize'] - $info['avdataoffset']) % 2 == 1) { // output file appears to be incorrectly *not* padded to nearest WORD boundary // Output less severe warning $info['warning'][] = 'File should probably be padded to nearest WORD boundary, but it is not (expecting ' . $thisfile_riff[$RIFFsubtype]['data'][0]['size'] . ' bytes of data, only found ' . ($info['filesize'] - $info['avdataoffset']) . ' therefore short by ' . ($thisfile_riff[$RIFFsubtype]['data'][0]['size'] - ($info['filesize'] - $info['avdataoffset'])) . ' bytes)'; $info['avdataend'] = $info['filesize']; } else { // Short by more than one byte, throw warning $info['warning'][] = 'Probably truncated file - expecting ' . $thisfile_riff[$RIFFsubtype]['data'][0]['size'] . ' bytes of data, only found ' . ($info['filesize'] - $info['avdataoffset']) . ' (short by ' . ($thisfile_riff[$RIFFsubtype]['data'][0]['size'] - ($info['filesize'] - $info['avdataoffset'])) . ' bytes)'; $info['avdataend'] = $info['filesize']; } break; } } if (!empty($info['mpeg']['audio']['LAME']['audio_bytes'])) { if ($info['avdataend'] - $info['avdataoffset'] - $info['mpeg']['audio']['LAME']['audio_bytes'] == 1) { $info['avdataend']--; $info['warning'][] = 'Extra null byte at end of MP3 data assumed to be RIFF padding and therefore ignored'; } } if (isset($thisfile_audio_dataformat) && $thisfile_audio_dataformat == 'ac3') { unset($thisfile_audio['bits_per_sample']); if (!empty($info['ac3']['bitrate']) && $info['ac3']['bitrate'] != $thisfile_audio['bitrate']) { $thisfile_audio['bitrate'] = $info['ac3']['bitrate']; } } break; case 'AVI ': $thisfile_video['bitrate_mode'] = 'vbr'; // maybe not, but probably $thisfile_video['dataformat'] = 'avi'; $info['mime_type'] = 'video/avi'; if (isset($thisfile_riff[$RIFFsubtype]['movi']['offset'])) { $info['avdataoffset'] = $thisfile_riff[$RIFFsubtype]['movi']['offset'] + 8; if (isset($thisfile_riff['AVIX'])) { $info['avdataend'] = $thisfile_riff['AVIX'][count($thisfile_riff['AVIX']) - 1]['chunks']['movi']['offset'] + $thisfile_riff['AVIX'][count($thisfile_riff['AVIX']) - 1]['chunks']['movi']['size']; } else { $info['avdataend'] = $thisfile_riff['AVI ']['movi']['offset'] + $thisfile_riff['AVI ']['movi']['size']; } if ($info['avdataend'] > $info['filesize']) { $info['warning'][] = 'Probably truncated file - expecting ' . ($info['avdataend'] - $info['avdataoffset']) . ' bytes of data, only found ' . ($info['filesize'] - $info['avdataoffset']) . ' (short by ' . ($info['avdataend'] - $info['filesize']) . ' bytes)'; $info['avdataend'] = $info['filesize']; } } if (isset($thisfile_riff['AVI ']['hdrl']['strl']['indx'])) { //$bIndexType = array( // 0x00 => 'AVI_INDEX_OF_INDEXES', // 0x01 => 'AVI_INDEX_OF_CHUNKS', // 0x80 => 'AVI_INDEX_IS_DATA', //); //$bIndexSubtype = array( // 0x01 => array( // 0x01 => 'AVI_INDEX_2FIELD', // ), //); foreach ($thisfile_riff['AVI ']['hdrl']['strl']['indx'] as $streamnumber => $steamdataarray) { $thisfile_riff_avi_hdrl_strl_indx_stream_data =& $thisfile_riff['AVI ']['hdrl']['strl']['indx'][$streamnumber]['data']; $thisfile_riff_raw['indx'][$streamnumber]['wLongsPerEntry'] = $this->EitherEndian2Int(substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 0, 2)); $thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType'] = $this->EitherEndian2Int(substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 2, 1)); $thisfile_riff_raw['indx'][$streamnumber]['bIndexType'] = $this->EitherEndian2Int(substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 3, 1)); $thisfile_riff_raw['indx'][$streamnumber]['nEntriesInUse'] = $this->EitherEndian2Int(substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 4, 4)); $thisfile_riff_raw['indx'][$streamnumber]['dwChunkId'] = substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 8, 4); $thisfile_riff_raw['indx'][$streamnumber]['dwReserved'] = $this->EitherEndian2Int(substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 12, 4)); //$thisfile_riff_raw['indx'][$streamnumber]['bIndexType_name'] = $bIndexType[$thisfile_riff_raw['indx'][$streamnumber]['bIndexType']]; //$thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType_name'] = $bIndexSubtype[$thisfile_riff_raw['indx'][$streamnumber]['bIndexType']][$thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType']]; unset($thisfile_riff_avi_hdrl_strl_indx_stream_data); } } if (isset($thisfile_riff['AVI ']['hdrl']['avih'][$streamindex]['data'])) { $avihData = $thisfile_riff['AVI ']['hdrl']['avih'][$streamindex]['data']; // shortcut $thisfile_riff_raw['avih'] = array(); $thisfile_riff_raw_avih =& $thisfile_riff_raw['avih']; $thisfile_riff_raw_avih['dwMicroSecPerFrame'] = $this->EitherEndian2Int(substr($avihData, 0, 4)); // frame display rate (or 0L) if ($thisfile_riff_raw_avih['dwMicroSecPerFrame'] == 0) { $info['error'][] = 'Corrupt RIFF file: avih.dwMicroSecPerFrame == zero'; return false; } $thisfile_riff_raw_avih['dwMaxBytesPerSec'] = $this->EitherEndian2Int(substr($avihData, 4, 4)); // max. transfer rate $thisfile_riff_raw_avih['dwPaddingGranularity'] = $this->EitherEndian2Int(substr($avihData, 8, 4)); // pad to multiples of this size; normally 2K. $thisfile_riff_raw_avih['dwFlags'] = $this->EitherEndian2Int(substr($avihData, 12, 4)); // the ever-present flags $thisfile_riff_raw_avih['dwTotalFrames'] = $this->EitherEndian2Int(substr($avihData, 16, 4)); // # frames in file $thisfile_riff_raw_avih['dwInitialFrames'] = $this->EitherEndian2Int(substr($avihData, 20, 4)); $thisfile_riff_raw_avih['dwStreams'] = $this->EitherEndian2Int(substr($avihData, 24, 4)); $thisfile_riff_raw_avih['dwSuggestedBufferSize'] = $this->EitherEndian2Int(substr($avihData, 28, 4)); $thisfile_riff_raw_avih['dwWidth'] = $this->EitherEndian2Int(substr($avihData, 32, 4)); $thisfile_riff_raw_avih['dwHeight'] = $this->EitherEndian2Int(substr($avihData, 36, 4)); $thisfile_riff_raw_avih['dwScale'] = $this->EitherEndian2Int(substr($avihData, 40, 4)); $thisfile_riff_raw_avih['dwRate'] = $this->EitherEndian2Int(substr($avihData, 44, 4)); $thisfile_riff_raw_avih['dwStart'] = $this->EitherEndian2Int(substr($avihData, 48, 4)); $thisfile_riff_raw_avih['dwLength'] = $this->EitherEndian2Int(substr($avihData, 52, 4)); $thisfile_riff_raw_avih['flags']['hasindex'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x10); $thisfile_riff_raw_avih['flags']['mustuseindex'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x20); $thisfile_riff_raw_avih['flags']['interleaved'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x100); $thisfile_riff_raw_avih['flags']['trustcktype'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x800); $thisfile_riff_raw_avih['flags']['capturedfile'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x10000); $thisfile_riff_raw_avih['flags']['copyrighted'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x20010); // shortcut $thisfile_riff_video[$streamindex] = array(); $thisfile_riff_video_current =& $thisfile_riff_video[$streamindex]; if ($thisfile_riff_raw_avih['dwWidth'] > 0) { $thisfile_riff_video_current['frame_width'] = $thisfile_riff_raw_avih['dwWidth']; $thisfile_video['resolution_x'] = $thisfile_riff_video_current['frame_width']; } if ($thisfile_riff_raw_avih['dwHeight'] > 0) { $thisfile_riff_video_current['frame_height'] = $thisfile_riff_raw_avih['dwHeight']; $thisfile_video['resolution_y'] = $thisfile_riff_video_current['frame_height']; } if ($thisfile_riff_raw_avih['dwTotalFrames'] > 0) { $thisfile_riff_video_current['total_frames'] = $thisfile_riff_raw_avih['dwTotalFrames']; $thisfile_video['total_frames'] = $thisfile_riff_video_current['total_frames']; } $thisfile_riff_video_current['frame_rate'] = round(1000000 / $thisfile_riff_raw_avih['dwMicroSecPerFrame'], 3); $thisfile_video['frame_rate'] = $thisfile_riff_video_current['frame_rate']; } if (isset($thisfile_riff['AVI ']['hdrl']['strl']['strh'][0]['data'])) { if (is_array($thisfile_riff['AVI ']['hdrl']['strl']['strh'])) { for ($i = 0; $i < count($thisfile_riff['AVI ']['hdrl']['strl']['strh']); $i++) { if (isset($thisfile_riff['AVI ']['hdrl']['strl']['strh'][$i]['data'])) { $strhData = $thisfile_riff['AVI ']['hdrl']['strl']['strh'][$i]['data']; $strhfccType = substr($strhData, 0, 4); if (isset($thisfile_riff['AVI ']['hdrl']['strl']['strf'][$i]['data'])) { $strfData = $thisfile_riff['AVI ']['hdrl']['strl']['strf'][$i]['data']; // shortcut $thisfile_riff_raw_strf_strhfccType_streamindex =& $thisfile_riff_raw['strf'][$strhfccType][$streamindex]; switch ($strhfccType) { case 'auds': $thisfile_audio['bitrate_mode'] = 'cbr'; $thisfile_audio_dataformat = 'wav'; if (isset($thisfile_riff_audio) && is_array($thisfile_riff_audio)) { $streamindex = count($thisfile_riff_audio); } $thisfile_riff_audio[$streamindex] = self::RIFFparseWAVEFORMATex($strfData); $thisfile_audio['wformattag'] = $thisfile_riff_audio[$streamindex]['raw']['wFormatTag']; // shortcut $thisfile_audio['streams'][$streamindex] = $thisfile_riff_audio[$streamindex]; $thisfile_audio_streams_currentstream =& $thisfile_audio['streams'][$streamindex]; if ($thisfile_audio_streams_currentstream['bits_per_sample'] == 0) { unset($thisfile_audio_streams_currentstream['bits_per_sample']); } $thisfile_audio_streams_currentstream['wformattag'] = $thisfile_audio_streams_currentstream['raw']['wFormatTag']; unset($thisfile_audio_streams_currentstream['raw']); // shortcut $thisfile_riff_raw['strf'][$strhfccType][$streamindex] = $thisfile_riff_audio[$streamindex]['raw']; unset($thisfile_riff_audio[$streamindex]['raw']); $thisfile_audio = GetId3_Lib_Helper::array_merge_noclobber($thisfile_audio, $thisfile_riff_audio[$streamindex]); $thisfile_audio['lossless'] = false; switch ($thisfile_riff_raw_strf_strhfccType_streamindex['wFormatTag']) { case 0x1: // PCM $thisfile_audio_dataformat = 'wav'; $thisfile_audio['lossless'] = true; break; case 0x50: // MPEG Layer 2 or Layer 1 $thisfile_audio_dataformat = 'mp2'; // Assume Layer-2 break; case 0x55: // MPEG Layer 3 $thisfile_audio_dataformat = 'mp3'; break; case 0xff: // AAC $thisfile_audio_dataformat = 'aac'; break; case 0x161: // Windows Media v7 / v8 / v9 // Windows Media v7 / v8 / v9 case 0x162: // Windows Media Professional v9 // Windows Media Professional v9 case 0x163: // Windows Media Lossess v9 $thisfile_audio_dataformat = 'wma'; break; case 0x2000: // AC-3 $thisfile_audio_dataformat = 'ac3'; break; case 0x2001: // DTS $thisfile_audio_dataformat = 'dts'; break; default: $thisfile_audio_dataformat = 'wav'; break; } $thisfile_audio_streams_currentstream['dataformat'] = $thisfile_audio_dataformat; $thisfile_audio_streams_currentstream['lossless'] = $thisfile_audio['lossless']; $thisfile_audio_streams_currentstream['bitrate_mode'] = $thisfile_audio['bitrate_mode']; break; case 'iavs': case 'vids': // shortcut $thisfile_riff_raw['strh'][$i] = array(); $thisfile_riff_raw_strh_current =& $thisfile_riff_raw['strh'][$i]; $thisfile_riff_raw_strh_current['fccType'] = substr($strhData, 0, 4); // same as $strhfccType; $thisfile_riff_raw_strh_current['fccHandler'] = substr($strhData, 4, 4); $thisfile_riff_raw_strh_current['dwFlags'] = $this->EitherEndian2Int(substr($strhData, 8, 4)); // Contains AVITF_* flags $thisfile_riff_raw_strh_current['wPriority'] = $this->EitherEndian2Int(substr($strhData, 12, 2)); $thisfile_riff_raw_strh_current['wLanguage'] = $this->EitherEndian2Int(substr($strhData, 14, 2)); $thisfile_riff_raw_strh_current['dwInitialFrames'] = $this->EitherEndian2Int(substr($strhData, 16, 4)); $thisfile_riff_raw_strh_current['dwScale'] = $this->EitherEndian2Int(substr($strhData, 20, 4)); $thisfile_riff_raw_strh_current['dwRate'] = $this->EitherEndian2Int(substr($strhData, 24, 4)); $thisfile_riff_raw_strh_current['dwStart'] = $this->EitherEndian2Int(substr($strhData, 28, 4)); $thisfile_riff_raw_strh_current['dwLength'] = $this->EitherEndian2Int(substr($strhData, 32, 4)); $thisfile_riff_raw_strh_current['dwSuggestedBufferSize'] = $this->EitherEndian2Int(substr($strhData, 36, 4)); $thisfile_riff_raw_strh_current['dwQuality'] = $this->EitherEndian2Int(substr($strhData, 40, 4)); $thisfile_riff_raw_strh_current['dwSampleSize'] = $this->EitherEndian2Int(substr($strhData, 44, 4)); $thisfile_riff_raw_strh_current['rcFrame'] = $this->EitherEndian2Int(substr($strhData, 48, 4)); $thisfile_riff_video_current['codec'] = self::RIFFfourccLookup($thisfile_riff_raw_strh_current['fccHandler']); $thisfile_video['fourcc'] = $thisfile_riff_raw_strh_current['fccHandler']; if (!$thisfile_riff_video_current['codec'] && isset($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']) && self::RIFFfourccLookup($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc'])) { $thisfile_riff_video_current['codec'] = self::RIFFfourccLookup($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']); $thisfile_video['fourcc'] = $thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']; } $thisfile_video['codec'] = $thisfile_riff_video_current['codec']; $thisfile_video['pixel_aspect_ratio'] = (double) 1; switch ($thisfile_riff_raw_strh_current['fccHandler']) { case 'HFYU': // Huffman Lossless Codec // Huffman Lossless Codec case 'IRAW': // Intel YUV Uncompressed // Intel YUV Uncompressed case 'YUY2': // Uncompressed YUV 4:2:2 $thisfile_video['lossless'] = true; break; default: $thisfile_video['lossless'] = false; break; } switch ($strhfccType) { case 'vids': $thisfile_riff_raw_strf_strhfccType_streamindex = self::ParseBITMAPINFOHEADER(substr($strfData, 0, 40), $info['fileformat'] == 'riff'); //echo '<pre>'.print_r($thisfile_riff_raw_strf_strhfccType_streamindex, true).'</pre>'; $thisfile_video['bits_per_sample'] = $thisfile_riff_raw_strf_strhfccType_streamindex['biBitCount']; if ($thisfile_riff_video_current['codec'] == 'DV') { $thisfile_riff_video_current['dv_type'] = 2; } break; case 'iavs': $thisfile_riff_video_current['dv_type'] = 1; break; } break; default: $info['warning'][] = 'Unhandled fccType for stream (' . $i . '): "' . $strhfccType . '"'; break; } } } if (isset($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc'])) { $thisfile_video['fourcc'] = $thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']; if (self::RIFFfourccLookup($thisfile_video['fourcc'])) { $thisfile_riff_video_current['codec'] = self::RIFFfourccLookup($thisfile_video['fourcc']); $thisfile_video['codec'] = $thisfile_riff_video_current['codec']; } switch ($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']) { case 'HFYU': // Huffman Lossless Codec // Huffman Lossless Codec case 'IRAW': // Intel YUV Uncompressed // Intel YUV Uncompressed case 'YUY2': // Uncompressed YUV 4:2:2 $thisfile_video['lossless'] = true; //$thisfile_video['bits_per_sample'] = 24; break; default: $thisfile_video['lossless'] = false; //$thisfile_video['bits_per_sample'] = 24; break; } } } } } break; case 'CDDA': $thisfile_audio['bitrate_mode'] = 'cbr'; $thisfile_audio_dataformat = 'cda'; $thisfile_audio['lossless'] = true; unset($info['mime_type']); $info['avdataoffset'] = 44; if (isset($thisfile_riff['CDDA']['fmt '][0]['data'])) { // shortcut $thisfile_riff_CDDA_fmt_0 =& $thisfile_riff['CDDA']['fmt '][0]; $thisfile_riff_CDDA_fmt_0['unknown1'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 0, 2)); $thisfile_riff_CDDA_fmt_0['track_num'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 2, 2)); $thisfile_riff_CDDA_fmt_0['disc_id'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 4, 4)); $thisfile_riff_CDDA_fmt_0['start_offset_frame'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 8, 4)); $thisfile_riff_CDDA_fmt_0['playtime_frames'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 12, 4)); $thisfile_riff_CDDA_fmt_0['unknown6'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 16, 4)); $thisfile_riff_CDDA_fmt_0['unknown7'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 20, 4)); $thisfile_riff_CDDA_fmt_0['start_offset_seconds'] = (double) $thisfile_riff_CDDA_fmt_0['start_offset_frame'] / 75; $thisfile_riff_CDDA_fmt_0['playtime_seconds'] = (double) $thisfile_riff_CDDA_fmt_0['playtime_frames'] / 75; $info['comments']['track'] = $thisfile_riff_CDDA_fmt_0['track_num']; $info['playtime_seconds'] = $thisfile_riff_CDDA_fmt_0['playtime_seconds']; // hardcoded data for CD-audio $thisfile_audio['sample_rate'] = 44100; $thisfile_audio['channels'] = 2; $thisfile_audio['bits_per_sample'] = 16; $thisfile_audio['bitrate'] = $thisfile_audio['sample_rate'] * $thisfile_audio['channels'] * $thisfile_audio['bits_per_sample']; $thisfile_audio['bitrate_mode'] = 'cbr'; } break; case 'AIFF': case 'AIFC': $thisfile_audio['bitrate_mode'] = 'cbr'; $thisfile_audio_dataformat = 'aiff'; $thisfile_audio['lossless'] = true; $info['mime_type'] = 'audio/x-aiff'; if (isset($thisfile_riff[$RIFFsubtype]['SSND'][0]['offset'])) { $info['avdataoffset'] = $thisfile_riff[$RIFFsubtype]['SSND'][0]['offset'] + 8; $info['avdataend'] = $info['avdataoffset'] + $thisfile_riff[$RIFFsubtype]['SSND'][0]['size']; if ($info['avdataend'] > $info['filesize']) { if ($info['avdataend'] == $info['filesize'] + 1 && $info['filesize'] % 2 == 1) { // structures rounded to 2-byte boundary, but dumb encoders // forget to pad end of file to make this actually work } else { $info['warning'][] = 'Probable truncated AIFF file: expecting ' . $thisfile_riff[$RIFFsubtype]['SSND'][0]['size'] . ' bytes of audio data, only ' . ($info['filesize'] - $info['avdataoffset']) . ' bytes found'; } $info['avdataend'] = $info['filesize']; } } if (isset($thisfile_riff[$RIFFsubtype]['COMM'][0]['data'])) { // shortcut $thisfile_riff_RIFFsubtype_COMM_0_data =& $thisfile_riff[$RIFFsubtype]['COMM'][0]['data']; $thisfile_riff_audio['channels'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 0, 2), true); $thisfile_riff_audio['total_samples'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 2, 4), false); $thisfile_riff_audio['bits_per_sample'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 6, 2), true); $thisfile_riff_audio['sample_rate'] = (int) GetId3_Lib_Helper::BigEndian2Float(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 8, 10)); if ($thisfile_riff[$RIFFsubtype]['COMM'][0]['size'] > 18) { $thisfile_riff_audio['codec_fourcc'] = substr($thisfile_riff_RIFFsubtype_COMM_0_data, 18, 4); $CodecNameSize = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 22, 1), false); $thisfile_riff_audio['codec_name'] = substr($thisfile_riff_RIFFsubtype_COMM_0_data, 23, $CodecNameSize); switch ($thisfile_riff_audio['codec_name']) { case 'NONE': $thisfile_audio['codec'] = 'Pulse Code Modulation (PCM)'; $thisfile_audio['lossless'] = true; break; case '': switch ($thisfile_riff_audio['codec_fourcc']) { // http://developer.apple.com/qa/snd/snd07.html case 'sowt': $thisfile_riff_audio['codec_name'] = 'Two\'s Compliment Little-Endian PCM'; $thisfile_audio['lossless'] = true; break; case 'twos': $thisfile_riff_audio['codec_name'] = 'Two\'s Compliment Big-Endian PCM'; $thisfile_audio['lossless'] = true; break; default: break; } break; default: $thisfile_audio['codec'] = $thisfile_riff_audio['codec_name']; $thisfile_audio['lossless'] = false; break; } } $thisfile_audio['channels'] = $thisfile_riff_audio['channels']; if ($thisfile_riff_audio['bits_per_sample'] > 0) { $thisfile_audio['bits_per_sample'] = $thisfile_riff_audio['bits_per_sample']; } $thisfile_audio['sample_rate'] = $thisfile_riff_audio['sample_rate']; if ($thisfile_audio['sample_rate'] == 0) { $info['error'][] = 'Corrupted AIFF file: sample_rate == zero'; return false; } $info['playtime_seconds'] = $thisfile_riff_audio['total_samples'] / $thisfile_audio['sample_rate']; } if (isset($thisfile_riff[$RIFFsubtype]['COMT'])) { $offset = 0; $CommentCount = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 2), false); $offset += 2; for ($i = 0; $i < $CommentCount; $i++) { $info['comments_raw'][$i]['timestamp'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 4), false); $offset += 4; $info['comments_raw'][$i]['marker_id'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 2), true); $offset += 2; $CommentLength = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 2), false); $offset += 2; $info['comments_raw'][$i]['comment'] = substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, $CommentLength); $offset += $CommentLength; $info['comments_raw'][$i]['timestamp_unix'] = GetId3_Lib_Helper::DateMac2Unix($info['comments_raw'][$i]['timestamp']); $thisfile_riff['comments']['comment'][] = $info['comments_raw'][$i]['comment']; } } $CommentsChunkNames = array('NAME' => 'title', 'author' => 'artist', '(c) ' => 'copyright', 'ANNO' => 'comment'); foreach ($CommentsChunkNames as $key => $value) { if (isset($thisfile_riff[$RIFFsubtype][$key][0]['data'])) { $thisfile_riff['comments'][$value][] = $thisfile_riff[$RIFFsubtype][$key][0]['data']; } } break; case '8SVX': $thisfile_audio['bitrate_mode'] = 'cbr'; $thisfile_audio_dataformat = '8svx'; $thisfile_audio['bits_per_sample'] = 8; $thisfile_audio['channels'] = 1; // overridden below, if need be $info['mime_type'] = 'audio/x-aiff'; if (isset($thisfile_riff[$RIFFsubtype]['BODY'][0]['offset'])) { $info['avdataoffset'] = $thisfile_riff[$RIFFsubtype]['BODY'][0]['offset'] + 8; $info['avdataend'] = $info['avdataoffset'] + $thisfile_riff[$RIFFsubtype]['BODY'][0]['size']; if ($info['avdataend'] > $info['filesize']) { $info['warning'][] = 'Probable truncated AIFF file: expecting ' . $thisfile_riff[$RIFFsubtype]['BODY'][0]['size'] . ' bytes of audio data, only ' . ($info['filesize'] - $info['avdataoffset']) . ' bytes found'; } } if (isset($thisfile_riff[$RIFFsubtype]['VHDR'][0]['offset'])) { // shortcut $thisfile_riff_RIFFsubtype_VHDR_0 =& $thisfile_riff[$RIFFsubtype]['VHDR'][0]; $thisfile_riff_RIFFsubtype_VHDR_0['oneShotHiSamples'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 0, 4)); $thisfile_riff_RIFFsubtype_VHDR_0['repeatHiSamples'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 4, 4)); $thisfile_riff_RIFFsubtype_VHDR_0['samplesPerHiCycle'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 8, 4)); $thisfile_riff_RIFFsubtype_VHDR_0['samplesPerSec'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 12, 2)); $thisfile_riff_RIFFsubtype_VHDR_0['ctOctave'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 14, 1)); $thisfile_riff_RIFFsubtype_VHDR_0['sCompression'] = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 15, 1)); $thisfile_riff_RIFFsubtype_VHDR_0['Volume'] = GetId3_Lib_Helper::FixedPoint16_16(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 16, 4)); $thisfile_audio['sample_rate'] = $thisfile_riff_RIFFsubtype_VHDR_0['samplesPerSec']; switch ($thisfile_riff_RIFFsubtype_VHDR_0['sCompression']) { case 0: $thisfile_audio['codec'] = 'Pulse Code Modulation (PCM)'; $thisfile_audio['lossless'] = true; $ActualBitsPerSample = 8; break; case 1: $thisfile_audio['codec'] = 'Fibonacci-delta encoding'; $thisfile_audio['lossless'] = false; $ActualBitsPerSample = 4; break; default: $info['warning'][] = 'Unexpected sCompression value in 8SVX.VHDR chunk - expecting 0 or 1, found "' . sCompression . '"'; break; } } if (isset($thisfile_riff[$RIFFsubtype]['CHAN'][0]['data'])) { $ChannelsIndex = GetId3_Lib_Helper::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['CHAN'][0]['data'], 0, 4)); switch ($ChannelsIndex) { case 6: // Stereo $thisfile_audio['channels'] = 2; break; case 2: // Left channel only // Left channel only case 4: // Right channel only $thisfile_audio['channels'] = 1; break; default: $info['warning'][] = 'Unexpected value in 8SVX.CHAN chunk - expecting 2 or 4 or 6, found "' . $ChannelsIndex . '"'; break; } } $CommentsChunkNames = array('NAME' => 'title', 'author' => 'artist', '(c) ' => 'copyright', 'ANNO' => 'comment'); foreach ($CommentsChunkNames as $key => $value) { if (isset($thisfile_riff[$RIFFsubtype][$key][0]['data'])) { $thisfile_riff['comments'][$value][] = $thisfile_riff[$RIFFsubtype][$key][0]['data']; } } $thisfile_audio['bitrate'] = $thisfile_audio['sample_rate'] * $ActualBitsPerSample * $thisfile_audio['channels']; if (!empty($thisfile_audio['bitrate'])) { $info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset']) / ($thisfile_audio['bitrate'] / 8); } break; case 'CDXA': $info['mime_type'] = 'video/mpeg'; if (!empty($thisfile_riff['CDXA']['data'][0]['size'])) { if (class_exists('GetId3_Module_AudioVideo_Mpeg')) { $getid3_temp = new GetId3_GetId3(); $getid3_temp->openfile($this->getid3->filename); $getid3_mpeg = new GetId3_Module_AudioVideo_Mpeg($getid3_temp); $getid3_mpeg->Analyze(); if (empty($getid3_temp->info['error'])) { $info['audio'] = $getid3_temp->info['audio']; $info['video'] = $getid3_temp->info['video']; $info['mpeg'] = $getid3_temp->info['mpeg']; $info['warning'] = $getid3_temp->info['warning']; } unset($getid3_temp, $getid3_mpeg); } } break; default: $info['error'][] = 'Unknown RIFF type: expecting one of (WAVE|RMP3|AVI |CDDA|AIFF|AIFC|8SVX|CDXA), found "' . $RIFFsubtype . '" instead'; unset($info['fileformat']); break; } switch ($RIFFsubtype) { case 'WAVE': case 'AIFF': case 'AIFC': if (isset($thisfile_riff[$RIFFsubtype]['ID3 ']) && !array_key_exists('id3 ', $thisfile_riff[$RIFFsubtype])) { $info['warning'][] = 'mapping "ID3 " chunk to "id3 "'; } if (isset($thisfile_riff[$RIFFsubtype]['tag ']) && !array_key_exists('id3 ', $thisfile_riff[$RIFFsubtype])) { $info['warning'][] = 'mapping "tag " chunk to "id3 "'; } if (isset($thisfile_riff[$RIFFsubtype]['id3 '])) { $getid3_temp = new GetId3_GetId3(); $getid3_temp->openfile($this->getid3->filename); $getid3_id3v2 = new GetId3_Module_Tag_Id3v2($getid3_temp); $getid3_id3v2->StartingOffset = $thisfile_riff[$RIFFsubtype]['id3 '][0]['offset'] + 8; if ($thisfile_riff[$RIFFsubtype]['id3 '][0]['valid'] = $getid3_id3v2->Analyze()) { $info['id3v2'] = $getid3_temp->info['id3v2']; } unset($getid3_temp, $getid3_id3v2); } break; } if (isset($thisfile_riff_raw['fmt ']['wFormatTag']) && $thisfile_riff_raw['fmt ']['wFormatTag'] == 1) { // http://www.mega-nerd.com/erikd/Blog/Windiots/dts.html fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $FirstFourBytes = fread($this->getid3->fp, 4); if (preg_match('/^\\xFF\\x1F\\x00\\xE8/s', $FirstFourBytes)) { // DTSWAV $thisfile_audio_dataformat = 'dts'; } elseif (preg_match('/^\\x7F\\xFF\\x80\\x01/s', $FirstFourBytes)) { // DTS, but this probably shouldn't happen $thisfile_audio_dataformat = 'dts'; } } if (isset($thisfile_riff_WAVE['DISP']) && is_array($thisfile_riff_WAVE['DISP'])) { $thisfile_riff['comments']['title'][] = trim(substr($thisfile_riff_WAVE['DISP'][count($thisfile_riff_WAVE['DISP']) - 1]['data'], 4)); } if (isset($thisfile_riff_WAVE['INFO']) && is_array($thisfile_riff_WAVE['INFO'])) { $this->RIFFcommentsParse($thisfile_riff_WAVE['INFO'], $thisfile_riff['comments']); } if (isset($thisfile_riff['AVI ']['INFO']) && is_array($thisfile_riff['AVI ']['INFO'])) { $this->RIFFcommentsParse($thisfile_riff['AVI ']['INFO'], $thisfile_riff['comments']); } if (empty($thisfile_audio['encoder']) && !empty($info['mpeg']['audio']['LAME']['short_version'])) { $thisfile_audio['encoder'] = $info['mpeg']['audio']['LAME']['short_version']; } if (!isset($info['playtime_seconds'])) { $info['playtime_seconds'] = 0; } if (isset($thisfile_riff_raw['strh'][0]['dwLength']) && isset($thisfile_riff_raw['avih']['dwMicroSecPerFrame'])) { // needed for >2GB AVIs where 'avih' chunk only lists number of frames in that chunk, not entire movie $info['playtime_seconds'] = $thisfile_riff_raw['strh'][0]['dwLength'] * ($thisfile_riff_raw['avih']['dwMicroSecPerFrame'] / 1000000); } elseif (isset($thisfile_riff_raw['avih']['dwTotalFrames']) && isset($thisfile_riff_raw['avih']['dwMicroSecPerFrame'])) { $info['playtime_seconds'] = $thisfile_riff_raw['avih']['dwTotalFrames'] * ($thisfile_riff_raw['avih']['dwMicroSecPerFrame'] / 1000000); } if ($info['playtime_seconds'] > 0) { if (isset($thisfile_riff_audio) && isset($thisfile_riff_video)) { if (!isset($info['bitrate'])) { $info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'] * 8; } } elseif (isset($thisfile_riff_audio) && !isset($thisfile_riff_video)) { if (!isset($thisfile_audio['bitrate'])) { $thisfile_audio['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'] * 8; } } elseif (!isset($thisfile_riff_audio) && isset($thisfile_riff_video)) { if (!isset($thisfile_video['bitrate'])) { $thisfile_video['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'] * 8; } } } if (isset($thisfile_riff_video) && isset($thisfile_audio['bitrate']) && $thisfile_audio['bitrate'] > 0 && $info['playtime_seconds'] > 0) { $info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'] * 8; $thisfile_audio['bitrate'] = 0; $thisfile_video['bitrate'] = $info['bitrate']; foreach ($thisfile_riff_audio as $channelnumber => $audioinfoarray) { $thisfile_video['bitrate'] -= $audioinfoarray['bitrate']; $thisfile_audio['bitrate'] += $audioinfoarray['bitrate']; } if ($thisfile_video['bitrate'] <= 0) { unset($thisfile_video['bitrate']); } if ($thisfile_audio['bitrate'] <= 0) { unset($thisfile_audio['bitrate']); } } if (isset($info['mpeg']['audio'])) { $thisfile_audio_dataformat = 'mp' . $info['mpeg']['audio']['layer']; $thisfile_audio['sample_rate'] = $info['mpeg']['audio']['sample_rate']; $thisfile_audio['channels'] = $info['mpeg']['audio']['channels']; $thisfile_audio['bitrate'] = $info['mpeg']['audio']['bitrate']; $thisfile_audio['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']); if (!empty($info['mpeg']['audio']['codec'])) { $thisfile_audio['codec'] = $info['mpeg']['audio']['codec'] . ' ' . $thisfile_audio['codec']; } if (!empty($thisfile_audio['streams'])) { foreach ($thisfile_audio['streams'] as $streamnumber => $streamdata) { if ($streamdata['dataformat'] == $thisfile_audio_dataformat) { $thisfile_audio['streams'][$streamnumber]['sample_rate'] = $thisfile_audio['sample_rate']; $thisfile_audio['streams'][$streamnumber]['channels'] = $thisfile_audio['channels']; $thisfile_audio['streams'][$streamnumber]['bitrate'] = $thisfile_audio['bitrate']; $thisfile_audio['streams'][$streamnumber]['bitrate_mode'] = $thisfile_audio['bitrate_mode']; $thisfile_audio['streams'][$streamnumber]['codec'] = $thisfile_audio['codec']; } } } $getid3_mp3 = new GetId3_Module_Audio_Mp3($this->getid3); $thisfile_audio['encoder_options'] = $getid3_mp3->GuessEncoderOptions(); unset($getid3_mp3); } if (!empty($thisfile_riff_raw['fmt ']['wBitsPerSample']) && $thisfile_riff_raw['fmt ']['wBitsPerSample'] > 0) { switch ($thisfile_audio_dataformat) { case 'ac3': // ignore bits_per_sample break; default: $thisfile_audio['bits_per_sample'] = $thisfile_riff_raw['fmt ']['wBitsPerSample']; break; } } if (empty($thisfile_riff_raw)) { unset($thisfile_riff['raw']); } if (empty($thisfile_riff_audio)) { unset($thisfile_riff['audio']); } if (empty($thisfile_riff_video)) { unset($thisfile_riff['video']); } return true; }
public function Analyze() { $info =& $this->getid3->info; // http://cui.unige.ch/OSG/info/AudioFormats/ap11.html // http://www.btinternet.com/~AnthonyJ/Atari/programming/avr_format.html // offset type length name comments // --------------------------------------------------------------------- // 0 char 4 ID format ID == "2BIT" // 4 char 8 name sample name (unused space filled with 0) // 12 short 1 mono/stereo 0=mono, -1 (0xFFFF)=stereo // With stereo, samples are alternated, // the first voice is the left : // (LRLRLRLRLRLRLRLRLR...) // 14 short 1 resolution 8, 12 or 16 (bits) // 16 short 1 signed or not 0=unsigned, -1 (0xFFFF)=signed // 18 short 1 loop or not 0=no loop, -1 (0xFFFF)=loop on // 20 short 1 MIDI note 0xFFnn, where 0 <= nn <= 127 // 0xFFFF means "no MIDI note defined" // 22 byte 1 Replay speed Frequence in the Replay software // 0=5.485 Khz, 1=8.084 Khz, 2=10.971 Khz, // 3=16.168 Khz, 4=21.942 Khz, 5=32.336 Khz // 6=43.885 Khz, 7=47.261 Khz // -1 (0xFF)=no defined Frequence // 23 byte 3 sample rate in Hertz // 26 long 1 size in bytes (2 * bytes in stereo) // 30 long 1 loop begin 0 for no loop // 34 long 1 loop size equal to 'size' for no loop // 38 short 2 Reserved, MIDI keyboard split */ // 40 short 2 Reserved, sample compression */ // 42 short 2 Reserved */ // 44 char 20; Additional filename space, used if (name[7] != 0) // 64 byte 64 user data // 128 bytes ? sample data (12 bits samples are coded on 16 bits: // 0000 xxxx xxxx xxxx) // --------------------------------------------------------------------- // Note that all values are in motorola (big-endian) format, and that long is // assumed to be 4 bytes, and short 2 bytes. // When reading the samples, you should handle both signed and unsigned data, // and be prepared to convert 16->8 bit, or mono->stereo if needed. To convert // 8-bit data between signed/unsigned just add 127 to the sample values. // Simularly for 16-bit data you should add 32769 $info['fileformat'] = 'avr'; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $AVRheader = fread($this->getid3->fp, 128); $info['avr']['raw']['magic'] = substr($AVRheader, 0, 4); $magic = '2BIT'; if ($info['avr']['raw']['magic'] != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($info['avr']['raw']['magic']) . '"'; unset($info['fileformat']); unset($info['avr']); return false; } $info['avdataoffset'] += 128; $info['avr']['sample_name'] = rtrim(substr($AVRheader, 4, 8)); $info['avr']['raw']['mono'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 12, 2)); $info['avr']['bits_per_sample'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 14, 2)); $info['avr']['raw']['signed'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 16, 2)); $info['avr']['raw']['loop'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 18, 2)); $info['avr']['raw']['midi'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 20, 2)); $info['avr']['raw']['replay_freq'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 22, 1)); $info['avr']['sample_rate'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 23, 3)); $info['avr']['sample_length'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 26, 4)); $info['avr']['loop_start'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 30, 4)); $info['avr']['loop_end'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 34, 4)); $info['avr']['midi_split'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 38, 2)); $info['avr']['sample_compression'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 40, 2)); $info['avr']['reserved'] = GetId3_Lib_Helper::BigEndian2Int(substr($AVRheader, 42, 2)); $info['avr']['sample_name_extra'] = rtrim(substr($AVRheader, 44, 20)); $info['avr']['comment'] = rtrim(substr($AVRheader, 64, 64)); $info['avr']['flags']['stereo'] = $info['avr']['raw']['mono'] == 0 ? false : true; $info['avr']['flags']['signed'] = $info['avr']['raw']['signed'] == 0 ? false : true; $info['avr']['flags']['loop'] = $info['avr']['raw']['loop'] == 0 ? false : true; $info['avr']['midi_notes'] = array(); if (($info['avr']['raw']['midi'] & 0xff00) != 0xff00) { $info['avr']['midi_notes'][] = ($info['avr']['raw']['midi'] & 0xff00) >> 8; } if (($info['avr']['raw']['midi'] & 0xff) != 0xff) { $info['avr']['midi_notes'][] = $info['avr']['raw']['midi'] & 0xff; } if ($info['avdataend'] - $info['avdataoffset'] != $info['avr']['sample_length'] * ($info['avr']['bits_per_sample'] == 8 ? 1 : 2)) { $info['warning'][] = 'Probable truncated file: expecting ' . $info['avr']['sample_length'] * ($info['avr']['bits_per_sample'] == 8 ? 1 : 2) . ' bytes of audio data, found ' . ($info['avdataend'] - $info['avdataoffset']); } $info['audio']['dataformat'] = 'avr'; $info['audio']['lossless'] = true; $info['audio']['bitrate_mode'] = 'cbr'; $info['audio']['bits_per_sample'] = $info['avr']['bits_per_sample']; $info['audio']['sample_rate'] = $info['avr']['sample_rate']; $info['audio']['channels'] = $info['avr']['flags']['stereo'] ? 2 : 1; $info['playtime_seconds'] = $info['avr']['sample_length'] / $info['audio']['channels'] / $info['avr']['sample_rate']; $info['audio']['bitrate'] = $info['avr']['sample_length'] * ($info['avr']['bits_per_sample'] == 8 ? 8 : 16) / $info['playtime_seconds']; return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; $info['fileformat'] = 'gif'; $info['video']['dataformat'] = 'gif'; $info['video']['lossless'] = true; $info['video']['pixel_aspect_ratio'] = (double) 1; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $GIFheader = fread($this->getid3->fp, 13); $offset = 0; $info['gif']['header']['raw']['identifier'] = substr($GIFheader, $offset, 3); $offset += 3; $magic = 'GIF'; if ($info['gif']['header']['raw']['identifier'] != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($info['gif']['header']['raw']['identifier']) . '"'; unset($info['fileformat']); unset($info['gif']); return false; } $info['gif']['header']['raw']['version'] = substr($GIFheader, $offset, 3); $offset += 3; $info['gif']['header']['raw']['width'] = GetId3_Lib_Helper::LittleEndian2Int(substr($GIFheader, $offset, 2)); $offset += 2; $info['gif']['header']['raw']['height'] = GetId3_Lib_Helper::LittleEndian2Int(substr($GIFheader, $offset, 2)); $offset += 2; $info['gif']['header']['raw']['flags'] = GetId3_Lib_Helper::LittleEndian2Int(substr($GIFheader, $offset, 1)); $offset += 1; $info['gif']['header']['raw']['bg_color_index'] = GetId3_Lib_Helper::LittleEndian2Int(substr($GIFheader, $offset, 1)); $offset += 1; $info['gif']['header']['raw']['aspect_ratio'] = GetId3_Lib_Helper::LittleEndian2Int(substr($GIFheader, $offset, 1)); $offset += 1; $info['video']['resolution_x'] = $info['gif']['header']['raw']['width']; $info['video']['resolution_y'] = $info['gif']['header']['raw']['height']; $info['gif']['version'] = $info['gif']['header']['raw']['version']; $info['gif']['header']['flags']['global_color_table'] = (bool) ($info['gif']['header']['raw']['flags'] & 0x80); if ($info['gif']['header']['raw']['flags'] & 0x80) { // Number of bits per primary color available to the original image, minus 1 $info['gif']['header']['bits_per_pixel'] = 3 * ((($info['gif']['header']['raw']['flags'] & 0x70) >> 4) + 1); } else { $info['gif']['header']['bits_per_pixel'] = 0; } $info['gif']['header']['flags']['global_color_sorted'] = (bool) ($info['gif']['header']['raw']['flags'] & 0x40); if ($info['gif']['header']['flags']['global_color_table']) { // the number of bytes contained in the Global Color Table. To determine that // actual size of the color table, raise 2 to [the value of the field + 1] $info['gif']['header']['global_color_size'] = pow(2, ($info['gif']['header']['raw']['flags'] & 0x7) + 1); $info['video']['bits_per_sample'] = ($info['gif']['header']['raw']['flags'] & 0x7) + 1; } else { $info['gif']['header']['global_color_size'] = 0; } if ($info['gif']['header']['raw']['aspect_ratio'] != 0) { // Aspect Ratio = (Pixel Aspect Ratio + 15) / 64 $info['gif']['header']['aspect_ratio'] = ($info['gif']['header']['raw']['aspect_ratio'] + 15) / 64; } // if ($info['gif']['header']['flags']['global_color_table']) { // $GIFcolorTable = fread($this->getid3->fp, 3 * $info['gif']['header']['global_color_size']); // $offset = 0; // for ($i = 0; $i < $info['gif']['header']['global_color_size']; $i++) { // $red = GetId3_lib::LittleEndian2Int(substr($GIFcolorTable, $offset++, 1)); // $green = GetId3_lib::LittleEndian2Int(substr($GIFcolorTable, $offset++, 1)); // $blue = GetId3_lib::LittleEndian2Int(substr($GIFcolorTable, $offset++, 1)); // $info['gif']['global_color_table'][$i] = (($red << 16) | ($green << 8) | ($blue)); // } // } // // // Image Descriptor // while (!feof($this->getid3->fp)) { // $NextBlockTest = fread($this->getid3->fp, 1); // switch ($NextBlockTest) { // // case ',': // ',' - Image separator character // // $ImageDescriptorData = $NextBlockTest.fread($this->getid3->fp, 9); // $ImageDescriptor = array(); // $ImageDescriptor['image_left'] = GetId3_lib::LittleEndian2Int(substr($ImageDescriptorData, 1, 2)); // $ImageDescriptor['image_top'] = GetId3_lib::LittleEndian2Int(substr($ImageDescriptorData, 3, 2)); // $ImageDescriptor['image_width'] = GetId3_lib::LittleEndian2Int(substr($ImageDescriptorData, 5, 2)); // $ImageDescriptor['image_height'] = GetId3_lib::LittleEndian2Int(substr($ImageDescriptorData, 7, 2)); // $ImageDescriptor['flags_raw'] = GetId3_lib::LittleEndian2Int(substr($ImageDescriptorData, 9, 1)); // $ImageDescriptor['flags']['use_local_color_map'] = (bool) ($ImageDescriptor['flags_raw'] & 0x80); // $ImageDescriptor['flags']['image_interlaced'] = (bool) ($ImageDescriptor['flags_raw'] & 0x40); // $info['gif']['image_descriptor'][] = $ImageDescriptor; // // if ($ImageDescriptor['flags']['use_local_color_map']) { // // $info['warning'][] = 'This version of GetId3() cannot parse local color maps for GIFs'; // return true; // // } //echo 'Start of raster data: '.ftell($this->getid3->fp).'<BR>'; // $RasterData = array(); // $RasterData['code_size'] = GetId3_lib::LittleEndian2Int(fread($this->getid3->fp, 1)); // $RasterData['block_byte_count'] = GetId3_lib::LittleEndian2Int(fread($this->getid3->fp, 1)); // $info['gif']['raster_data'][count($info['gif']['image_descriptor']) - 1] = $RasterData; // // $CurrentCodeSize = $RasterData['code_size'] + 1; // for ($i = 0; $i < pow(2, $RasterData['code_size']); $i++) { // $DefaultDataLookupTable[$i] = chr($i); // } // $DefaultDataLookupTable[pow(2, $RasterData['code_size']) + 0] = ''; // Clear Code // $DefaultDataLookupTable[pow(2, $RasterData['code_size']) + 1] = ''; // End Of Image Code // // // $NextValue = $this->GetLSBits($CurrentCodeSize); // echo 'Clear Code: '.$NextValue.'<BR>'; // // $NextValue = $this->GetLSBits($CurrentCodeSize); // echo 'First Color: '.$NextValue.'<BR>'; // // $Prefix = $NextValue; //$i = 0; // while ($i++ < 20) { // $NextValue = $this->GetLSBits($CurrentCodeSize); // echo $NextValue.'<BR>'; // } //return true; // break; // // case '!': // // GIF Extension Block // $ExtensionBlockData = $NextBlockTest.fread($this->getid3->fp, 2); // $ExtensionBlock = array(); // $ExtensionBlock['function_code'] = GetId3_lib::LittleEndian2Int(substr($ExtensionBlockData, 1, 1)); // $ExtensionBlock['byte_length'] = GetId3_lib::LittleEndian2Int(substr($ExtensionBlockData, 2, 1)); // $ExtensionBlock['data'] = fread($this->getid3->fp, $ExtensionBlock['byte_length']); // $info['gif']['extension_blocks'][] = $ExtensionBlock; // break; // // case ';': // $info['gif']['terminator_offset'] = ftell($this->getid3->fp) - 1; // // GIF Terminator // break; // // default: // break; // // // } // } return true; }
/** * * @staticvar type $shorten_present * @return boolean */ public function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $ShortenHeader = fread($this->getid3->fp, 8); $magic = 'ajkg'; if (substr($ShortenHeader, 0, 4) != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes(substr($ShortenHeader, 0, 4)) . '"'; return false; } $info['fileformat'] = 'shn'; $info['audio']['dataformat'] = 'shn'; $info['audio']['lossless'] = true; $info['audio']['bitrate_mode'] = 'vbr'; $info['shn']['version'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ShortenHeader, 4, 1)); fseek($this->getid3->fp, $info['avdataend'] - 12, SEEK_SET); $SeekTableSignatureTest = fread($this->getid3->fp, 12); $info['shn']['seektable']['present'] = (bool) (substr($SeekTableSignatureTest, 4, 8) == 'SHNAMPSK'); if ($info['shn']['seektable']['present']) { $info['shn']['seektable']['length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($SeekTableSignatureTest, 0, 4)); $info['shn']['seektable']['offset'] = $info['avdataend'] - $info['shn']['seektable']['length']; fseek($this->getid3->fp, $info['shn']['seektable']['offset'], SEEK_SET); $SeekTableMagic = fread($this->getid3->fp, 4); $magic = 'SEEK'; if ($SeekTableMagic != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['shn']['seektable']['offset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($SeekTableMagic) . '"'; return false; } else { // typedef struct tag_TSeekEntry // { // unsigned long SampleNumber; // unsigned long SHNFileByteOffset; // unsigned long SHNLastBufferReadPosition; // unsigned short SHNByteGet; // unsigned short SHNBufferOffset; // unsigned short SHNFileBitOffset; // unsigned long SHNGBuffer; // unsigned short SHNBitShift; // long CBuf0[3]; // long CBuf1[3]; // long Offset0[4]; // long Offset1[4]; // }TSeekEntry; $SeekTableData = fread($this->getid3->fp, $info['shn']['seektable']['length'] - 16); $info['shn']['seektable']['entry_count'] = floor(strlen($SeekTableData) / 80); //$info['shn']['seektable']['entries'] = array(); //$SeekTableOffset = 0; //for ($i = 0; $i < $info['shn']['seektable']['entry_count']; $i++) { // $SeekTableEntry['sample_number'] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4)); // $SeekTableOffset += 4; // $SeekTableEntry['shn_file_byte_offset'] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4)); // $SeekTableOffset += 4; // $SeekTableEntry['shn_last_buffer_read_position'] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4)); // $SeekTableOffset += 4; // $SeekTableEntry['shn_byte_get'] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 2)); // $SeekTableOffset += 2; // $SeekTableEntry['shn_buffer_offset'] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 2)); // $SeekTableOffset += 2; // $SeekTableEntry['shn_file_bit_offset'] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 2)); // $SeekTableOffset += 2; // $SeekTableEntry['shn_gbuffer'] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4)); // $SeekTableOffset += 4; // $SeekTableEntry['shn_bit_shift'] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 2)); // $SeekTableOffset += 2; // for ($j = 0; $j < 3; $j++) { // $SeekTableEntry['cbuf0'][$j] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4)); // $SeekTableOffset += 4; // } // for ($j = 0; $j < 3; $j++) { // $SeekTableEntry['cbuf1'][$j] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4)); // $SeekTableOffset += 4; // } // for ($j = 0; $j < 4; $j++) { // $SeekTableEntry['offset0'][$j] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4)); // $SeekTableOffset += 4; // } // for ($j = 0; $j < 4; $j++) { // $SeekTableEntry['offset1'][$j] = GetId3_lib::LittleEndian2Int(substr($SeekTableData, $SeekTableOffset, 4)); // $SeekTableOffset += 4; // } // // $info['shn']['seektable']['entries'][] = $SeekTableEntry; //} } } if (preg_match('#(1|ON)#i', ini_get('safe_mode'))) { $info['error'][] = 'PHP running in Safe Mode - backtick operator not available, cannot run shntool to analyze Shorten files'; return false; } if (GetId3_GetId3::environmentIsWindows()) { $RequiredFiles = array('shorten.exe', 'cygwin1.dll', 'head.exe'); foreach ($RequiredFiles as $required_file) { if (!is_readable(GetId3_GetId3::getHelperAppsDir() . $required_file)) { $info['error'][] = GetId3_GetId3::getHelperAppsDir() . $required_file . ' does not exist'; return false; } } $commandline = GetId3_GetId3::getHelperAppsDir() . 'shorten.exe -x "' . $info['filenamepath'] . '" - | ' . GetId3_GetId3::getHelperAppsDir() . 'head.exe -c 64'; $commandline = str_replace('/', '\\', $commandline); } else { static $shorten_present; if (!isset($shorten_present)) { $shorten_present = file_exists('/usr/local/bin/shorten') || `which shorten`; } if (!$shorten_present) { $info['error'][] = 'shorten binary was not found in path or /usr/local/bin'; return false; } $commandline = (file_exists('/usr/local/bin/shorten') ? '/usr/local/bin/' : '') . 'shorten -x ' . escapeshellarg($info['filenamepath']) . ' - | head -c 64'; } $output = `{$commandline}`; if (!empty($output) && substr($output, 12, 4) == 'fmt ') { $fmt_size = GetId3_Lib_Helper::LittleEndian2Int(substr($output, 16, 4)); $DecodedWAVFORMATEX = GetId3_Module_AudioVideo_Riff::RIFFparseWAVEFORMATex(substr($output, 20, $fmt_size)); $info['audio']['channels'] = $DecodedWAVFORMATEX['channels']; $info['audio']['bits_per_sample'] = $DecodedWAVFORMATEX['bits_per_sample']; $info['audio']['sample_rate'] = $DecodedWAVFORMATEX['sample_rate']; if (substr($output, 20 + $fmt_size, 4) == 'data') { $info['playtime_seconds'] = GetId3_Lib_Helper::LittleEndian2Int(substr($output, 20 + 4 + $fmt_size, 4)) / $DecodedWAVFORMATEX['raw']['nAvgBytesPerSec']; } else { $info['error'][] = 'shorten failed to decode DATA chunk to expected location, cannot determine playtime'; return false; } $info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'] * 8; } else { $info['error'][] = 'shorten failed to decode file to WAV for parsing'; return false; } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; // based loosely on code from TMonkey by Jurgen Faul <jfaulØgmx*de> // http://jfaul.de/atl or http://j-faul.virtualave.net/atl/atl.html $info['fileformat'] = 'mac'; $info['audio']['dataformat'] = 'mac'; $info['audio']['bitrate_mode'] = 'vbr'; $info['audio']['lossless'] = true; $info['monkeys_audio']['raw'] = array(); $thisfile_monkeysaudio =& $info['monkeys_audio']; $thisfile_monkeysaudio_raw =& $thisfile_monkeysaudio['raw']; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $MACheaderData = fread($this->getid3->fp, 74); $thisfile_monkeysaudio_raw['magic'] = substr($MACheaderData, 0, 4); $magic = 'MAC '; if ($thisfile_monkeysaudio_raw['magic'] != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($thisfile_monkeysaudio_raw['magic']) . '"'; unset($info['fileformat']); return false; } $thisfile_monkeysaudio_raw['nVersion'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 4, 2)); // appears to be uint32 in 3.98+ if ($thisfile_monkeysaudio_raw['nVersion'] < 3980) { $thisfile_monkeysaudio_raw['nCompressionLevel'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 6, 2)); $thisfile_monkeysaudio_raw['nFormatFlags'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 8, 2)); $thisfile_monkeysaudio_raw['nChannels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 10, 2)); $thisfile_monkeysaudio_raw['nSampleRate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 12, 4)); $thisfile_monkeysaudio_raw['nHeaderDataBytes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 16, 4)); $thisfile_monkeysaudio_raw['nWAVTerminatingBytes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 20, 4)); $thisfile_monkeysaudio_raw['nTotalFrames'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 24, 4)); $thisfile_monkeysaudio_raw['nFinalFrameSamples'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 28, 4)); $thisfile_monkeysaudio_raw['nPeakLevel'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 32, 4)); $thisfile_monkeysaudio_raw['nSeekElements'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, 38, 2)); $offset = 8; } else { $offset = 8; // APE_DESCRIPTOR $thisfile_monkeysaudio_raw['nDescriptorBytes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; $thisfile_monkeysaudio_raw['nHeaderBytes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; $thisfile_monkeysaudio_raw['nSeekTableBytes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; $thisfile_monkeysaudio_raw['nHeaderDataBytes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; $thisfile_monkeysaudio_raw['nAPEFrameDataBytes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; $thisfile_monkeysaudio_raw['nAPEFrameDataBytesHigh'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; $thisfile_monkeysaudio_raw['nTerminatingDataBytes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; $thisfile_monkeysaudio_raw['cFileMD5'] = substr($MACheaderData, $offset, 16); $offset += 16; // APE_HEADER $thisfile_monkeysaudio_raw['nCompressionLevel'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 2)); $offset += 2; $thisfile_monkeysaudio_raw['nFormatFlags'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 2)); $offset += 2; $thisfile_monkeysaudio_raw['nBlocksPerFrame'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; $thisfile_monkeysaudio_raw['nFinalFrameBlocks'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; $thisfile_monkeysaudio_raw['nTotalFrames'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; $thisfile_monkeysaudio_raw['nBitsPerSample'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 2)); $offset += 2; $thisfile_monkeysaudio_raw['nChannels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 2)); $offset += 2; $thisfile_monkeysaudio_raw['nSampleRate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($MACheaderData, $offset, 4)); $offset += 4; } $thisfile_monkeysaudio['flags']['8-bit'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x1); $thisfile_monkeysaudio['flags']['crc-32'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x2); $thisfile_monkeysaudio['flags']['peak_level'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x4); $thisfile_monkeysaudio['flags']['24-bit'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x8); $thisfile_monkeysaudio['flags']['seek_elements'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x10); $thisfile_monkeysaudio['flags']['no_wav_header'] = (bool) ($thisfile_monkeysaudio_raw['nFormatFlags'] & 0x20); $thisfile_monkeysaudio['version'] = $thisfile_monkeysaudio_raw['nVersion'] / 1000; $thisfile_monkeysaudio['compression'] = $this->MonkeyCompressionLevelNameLookup($thisfile_monkeysaudio_raw['nCompressionLevel']); if ($thisfile_monkeysaudio_raw['nVersion'] < 3980) { $thisfile_monkeysaudio['samples_per_frame'] = $this->MonkeySamplesPerFrame($thisfile_monkeysaudio_raw['nVersion'], $thisfile_monkeysaudio_raw['nCompressionLevel']); } $thisfile_monkeysaudio['bits_per_sample'] = $thisfile_monkeysaudio['flags']['24-bit'] ? 24 : ($thisfile_monkeysaudio['flags']['8-bit'] ? 8 : 16); $thisfile_monkeysaudio['channels'] = $thisfile_monkeysaudio_raw['nChannels']; $info['audio']['channels'] = $thisfile_monkeysaudio['channels']; $thisfile_monkeysaudio['sample_rate'] = $thisfile_monkeysaudio_raw['nSampleRate']; if ($thisfile_monkeysaudio['sample_rate'] == 0) { $info['error'][] = 'Corrupt MAC file: frequency == zero'; return false; } $info['audio']['sample_rate'] = $thisfile_monkeysaudio['sample_rate']; if ($thisfile_monkeysaudio['flags']['peak_level']) { $thisfile_monkeysaudio['peak_level'] = $thisfile_monkeysaudio_raw['nPeakLevel']; $thisfile_monkeysaudio['peak_ratio'] = $thisfile_monkeysaudio['peak_level'] / pow(2, $thisfile_monkeysaudio['bits_per_sample'] - 1); } if ($thisfile_monkeysaudio_raw['nVersion'] >= 3980) { $thisfile_monkeysaudio['samples'] = ($thisfile_monkeysaudio_raw['nTotalFrames'] - 1) * $thisfile_monkeysaudio_raw['nBlocksPerFrame'] + $thisfile_monkeysaudio_raw['nFinalFrameBlocks']; } else { $thisfile_monkeysaudio['samples'] = ($thisfile_monkeysaudio_raw['nTotalFrames'] - 1) * $thisfile_monkeysaudio['samples_per_frame'] + $thisfile_monkeysaudio_raw['nFinalFrameSamples']; } $thisfile_monkeysaudio['playtime'] = $thisfile_monkeysaudio['samples'] / $thisfile_monkeysaudio['sample_rate']; if ($thisfile_monkeysaudio['playtime'] == 0) { $info['error'][] = 'Corrupt MAC file: playtime == zero'; return false; } $info['playtime_seconds'] = $thisfile_monkeysaudio['playtime']; $thisfile_monkeysaudio['compressed_size'] = $info['avdataend'] - $info['avdataoffset']; $thisfile_monkeysaudio['uncompressed_size'] = $thisfile_monkeysaudio['samples'] * $thisfile_monkeysaudio['channels'] * ($thisfile_monkeysaudio['bits_per_sample'] / 8); if ($thisfile_monkeysaudio['uncompressed_size'] == 0) { $info['error'][] = 'Corrupt MAC file: uncompressed_size == zero'; return false; } $thisfile_monkeysaudio['compression_ratio'] = $thisfile_monkeysaudio['compressed_size'] / ($thisfile_monkeysaudio['uncompressed_size'] + $thisfile_monkeysaudio_raw['nHeaderDataBytes']); $thisfile_monkeysaudio['bitrate'] = $thisfile_monkeysaudio['samples'] * $thisfile_monkeysaudio['channels'] * $thisfile_monkeysaudio['bits_per_sample'] / $thisfile_monkeysaudio['playtime'] * $thisfile_monkeysaudio['compression_ratio']; $info['audio']['bitrate'] = $thisfile_monkeysaudio['bitrate']; // add size of MAC header to avdataoffset if ($thisfile_monkeysaudio_raw['nVersion'] >= 3980) { $info['avdataoffset'] += $thisfile_monkeysaudio_raw['nDescriptorBytes']; $info['avdataoffset'] += $thisfile_monkeysaudio_raw['nHeaderBytes']; $info['avdataoffset'] += $thisfile_monkeysaudio_raw['nSeekTableBytes']; $info['avdataoffset'] += $thisfile_monkeysaudio_raw['nHeaderDataBytes']; $info['avdataend'] -= $thisfile_monkeysaudio_raw['nTerminatingDataBytes']; } else { $info['avdataoffset'] += $offset; } if ($thisfile_monkeysaudio_raw['nVersion'] >= 3980) { if ($thisfile_monkeysaudio_raw['cFileMD5'] === str_repeat("", 16)) { //$info['warning'][] = 'cFileMD5 is null'; } else { $info['md5_data_source'] = ''; $md5 = $thisfile_monkeysaudio_raw['cFileMD5']; for ($i = 0; $i < strlen($md5); $i++) { $info['md5_data_source'] .= str_pad(dechex(ord($md5[$i])), 2, '00', STR_PAD_LEFT); } if (!preg_match('/^[0-9a-f]{32}$/', $info['md5_data_source'])) { unset($info['md5_data_source']); } } } $info['audio']['bits_per_sample'] = $thisfile_monkeysaudio['bits_per_sample']; $info['audio']['encoder'] = 'MAC v' . number_format($thisfile_monkeysaudio['version'], 2); $info['audio']['encoder_options'] = ucfirst($thisfile_monkeysaudio['compression']) . ' compression'; return true; }
/** * * @return boolean */ public function ParseOptimFROGheader45() { // for fileformat of v4.50a and higher $info =& $this->getid3->info; $RIFFdata = ''; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); while (!feof($this->getid3->fp) && ftell($this->getid3->fp) < $info['avdataend']) { $BlockOffset = ftell($this->getid3->fp); $BlockData = fread($this->getid3->fp, 8); $offset = 8; $BlockName = substr($BlockData, 0, 4); $BlockSize = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 4, 4)); if ($BlockName == 'OFRX') { $BlockName = 'OFR '; } if (!isset($info['ofr'][$BlockName])) { $info['ofr'][$BlockName] = array(); } $thisfile_ofr_thisblock =& $info['ofr'][$BlockName]; switch ($BlockName) { case 'OFR ': // shortcut $thisfile_ofr_thisblock['offset'] = $BlockOffset; $thisfile_ofr_thisblock['size'] = $BlockSize; $info['audio']['encoder'] = 'OptimFROG 4.50 alpha'; switch ($BlockSize) { case 12: case 15: // good break; default: $info['warning'][] = '"' . $BlockName . '" contains more data than expected (expected 12 or 15 bytes, found ' . $BlockSize . ' bytes)'; break; } $BlockData .= fread($this->getid3->fp, $BlockSize); $thisfile_ofr_thisblock['total_samples'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 6)); $offset += 6; $thisfile_ofr_thisblock['raw']['sample_type'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 1)); $thisfile_ofr_thisblock['sample_type'] = $this->OptimFROGsampleTypeLookup($thisfile_ofr_thisblock['raw']['sample_type']); $offset += 1; $thisfile_ofr_thisblock['channel_config'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 1)); $thisfile_ofr_thisblock['channels'] = $thisfile_ofr_thisblock['channel_config']; $offset += 1; $thisfile_ofr_thisblock['sample_rate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 4)); $offset += 4; if ($BlockSize > 12) { // OFR 4.504b or higher $thisfile_ofr_thisblock['channels'] = $this->OptimFROGchannelConfigNumChannelsLookup($thisfile_ofr_thisblock['channel_config']); $thisfile_ofr_thisblock['raw']['encoder_id'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 2)); $thisfile_ofr_thisblock['encoder'] = $this->OptimFROGencoderNameLookup($thisfile_ofr_thisblock['raw']['encoder_id']); $offset += 2; $thisfile_ofr_thisblock['raw']['compression'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 1)); $thisfile_ofr_thisblock['compression'] = $this->OptimFROGcompressionLookup($thisfile_ofr_thisblock['raw']['compression']); $thisfile_ofr_thisblock['speedup'] = $this->OptimFROGspeedupLookup($thisfile_ofr_thisblock['raw']['compression']); $offset += 1; $info['audio']['encoder'] = 'OptimFROG ' . $thisfile_ofr_thisblock['encoder']; $info['audio']['encoder_options'] = '--mode ' . $thisfile_ofr_thisblock['compression']; if (($thisfile_ofr_thisblock['raw']['encoder_id'] & 0xf0) >> 4 == 7) { // v4.507 if (strtolower(GetId3_Lib_Helper::fileextension($info['filename'])) == 'ofs') { // OptimFROG DualStream format is lossy, but as of v4.507 there is no way to tell the difference // between lossless and lossy other than the file extension. $info['audio']['dataformat'] = 'ofs'; $info['audio']['lossless'] = true; } } } $info['audio']['channels'] = $thisfile_ofr_thisblock['channels']; $info['audio']['sample_rate'] = $thisfile_ofr_thisblock['sample_rate']; $info['audio']['bits_per_sample'] = $this->OptimFROGbitsPerSampleTypeLookup($thisfile_ofr_thisblock['raw']['sample_type']); break; case 'COMP': // unlike other block types, there CAN be multiple COMP blocks $COMPdata['offset'] = $BlockOffset; $COMPdata['size'] = $BlockSize; if ($info['avdataoffset'] == 0) { $info['avdataoffset'] = $BlockOffset; } // Only interested in first 14 bytes (only first 12 needed for v4.50 alpha), not actual audio data $BlockData .= fread($this->getid3->fp, 14); fseek($this->getid3->fp, $BlockSize - 14, SEEK_CUR); $COMPdata['crc_32'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 4)); $offset += 4; $COMPdata['sample_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 4)); $offset += 4; $COMPdata['raw']['sample_type'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 1)); $COMPdata['sample_type'] = $this->OptimFROGsampleTypeLookup($COMPdata['raw']['sample_type']); $offset += 1; $COMPdata['raw']['channel_configuration'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 1)); $COMPdata['channel_configuration'] = $this->OptimFROGchannelConfigurationLookup($COMPdata['raw']['channel_configuration']); $offset += 1; $COMPdata['raw']['algorithm_id'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 2)); //$COMPdata['algorithm'] = OptimFROGalgorithmNameLookup($COMPdata['raw']['algorithm_id']); $offset += 2; if ($info['ofr']['OFR ']['size'] > 12) { // OFR 4.504b or higher $COMPdata['raw']['encoder_id'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, $offset, 2)); $COMPdata['encoder'] = $this->OptimFROGencoderNameLookup($COMPdata['raw']['encoder_id']); $offset += 2; } if ($COMPdata['crc_32'] == 0x454e4f4e) { // ASCII value of 'NONE' - placeholder value in v4.50a $COMPdata['crc_32'] = false; } $thisfile_ofr_thisblock[] = $COMPdata; break; case 'HEAD': $thisfile_ofr_thisblock['offset'] = $BlockOffset; $thisfile_ofr_thisblock['size'] = $BlockSize; $RIFFdata .= fread($this->getid3->fp, $BlockSize); break; case 'TAIL': $thisfile_ofr_thisblock['offset'] = $BlockOffset; $thisfile_ofr_thisblock['size'] = $BlockSize; if ($BlockSize > 0) { $RIFFdata .= fread($this->getid3->fp, $BlockSize); } break; case 'RECV': // block contains no useful meta data - simply note and skip $thisfile_ofr_thisblock['offset'] = $BlockOffset; $thisfile_ofr_thisblock['size'] = $BlockSize; fseek($this->getid3->fp, $BlockSize, SEEK_CUR); break; case 'APET': // APEtag v2 $thisfile_ofr_thisblock['offset'] = $BlockOffset; $thisfile_ofr_thisblock['size'] = $BlockSize; $info['warning'][] = 'APEtag processing inside OptimFROG not supported in this version (' . $this->getid3->version() . ') of GetId3()'; fseek($this->getid3->fp, $BlockSize, SEEK_CUR); break; case 'MD5 ': // APEtag v2 $thisfile_ofr_thisblock['offset'] = $BlockOffset; $thisfile_ofr_thisblock['size'] = $BlockSize; if ($BlockSize == 16) { $thisfile_ofr_thisblock['md5_binary'] = fread($this->getid3->fp, $BlockSize); $thisfile_ofr_thisblock['md5_string'] = GetId3_Lib_Helper::PrintHexBytes($thisfile_ofr_thisblock['md5_binary'], true, false, false); $info['md5_data_source'] = $thisfile_ofr_thisblock['md5_string']; } else { $info['warning'][] = 'Expecting block size of 16 in "MD5 " chunk, found ' . $BlockSize . ' instead'; fseek($this->getid3->fp, $BlockSize, SEEK_CUR); } break; default: $thisfile_ofr_thisblock['offset'] = $BlockOffset; $thisfile_ofr_thisblock['size'] = $BlockSize; $info['warning'][] = 'Unhandled OptimFROG block type "' . $BlockName . '" at offset ' . $thisfile_ofr_thisblock['offset']; fseek($this->getid3->fp, $BlockSize, SEEK_CUR); break; } } if (isset($info['ofr']['TAIL']['offset'])) { $info['avdataend'] = $info['ofr']['TAIL']['offset']; } $info['playtime_seconds'] = (double) $info['ofr']['OFR ']['total_samples'] / ($info['audio']['channels'] * $info['audio']['sample_rate']); $info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; // move the data chunk after all other chunks (if any) // so that the RIFF parser doesn't see EOF when trying // to skip over the data chunk $RIFFdata = substr($RIFFdata, 0, 36) . substr($RIFFdata, 44) . substr($RIFFdata, 36, 8); $getid3_temp = new GetId3_GetId3(); $getid3_temp->openfile($this->getid3->filename); $getid3_temp->info['avdataoffset'] = $info['avdataoffset']; $getid3_temp->info['avdataend'] = $info['avdataend']; $getid3_riff = new GetId3_Module_AudioVideo_Riff($getid3_temp); $getid3_riff->ParseRIFFdata($RIFFdata); $info['riff'] = $getid3_temp->info['riff']; unset($getid3_riff, $getid3_temp, $RIFFdata); return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; $offset = 0; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $rawdata = fread($this->getid3->fp, $this->getid3->fread_buffer_size()); switch (substr($rawdata, $offset, 4)) { case 'LA02': case 'LA03': case 'LA04': $info['fileformat'] = 'la'; $info['audio']['dataformat'] = 'la'; $info['audio']['lossless'] = true; $info['la']['version_major'] = (int) substr($rawdata, $offset + 2, 1); $info['la']['version_minor'] = (int) substr($rawdata, $offset + 3, 1); $info['la']['version'] = (double) $info['la']['version_major'] + $info['la']['version_minor'] / 10; $offset += 4; $info['la']['uncompressed_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 4)); $offset += 4; if ($info['la']['uncompressed_size'] == 0) { $info['error'][] = 'Corrupt LA file: uncompressed_size == zero'; return false; } $WAVEchunk = substr($rawdata, $offset, 4); if ($WAVEchunk !== 'WAVE') { $info['error'][] = 'Expected "WAVE" (' . GetId3_Lib_Helper::PrintHexBytes('WAVE') . ') at offset ' . $offset . ', found "' . $WAVEchunk . '" (' . GetId3_Lib_Helper::PrintHexBytes($WAVEchunk) . ') instead.'; return false; } $offset += 4; $info['la']['fmt_size'] = 24; if ($info['la']['version'] >= 0.3) { $info['la']['fmt_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 4)); $info['la']['header_size'] = 49 + $info['la']['fmt_size'] - 24; $offset += 4; } else { // version 0.2 didn't support additional data blocks $info['la']['header_size'] = 41; } $fmt_chunk = substr($rawdata, $offset, 4); if ($fmt_chunk !== 'fmt ') { $info['error'][] = 'Expected "fmt " (' . GetId3_Lib_Helper::PrintHexBytes('fmt ') . ') at offset ' . $offset . ', found "' . $fmt_chunk . '" (' . GetId3_Lib_Helper::PrintHexBytes($fmt_chunk) . ') instead.'; return false; } $offset += 4; $fmt_size = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 4)); $offset += 4; $info['la']['raw']['format'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 2)); $offset += 2; $info['la']['channels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 2)); $offset += 2; if ($info['la']['channels'] == 0) { $info['error'][] = 'Corrupt LA file: channels == zero'; return false; } $info['la']['sample_rate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 4)); $offset += 4; if ($info['la']['sample_rate'] == 0) { $info['error'][] = 'Corrupt LA file: sample_rate == zero'; return false; } $info['la']['bytes_per_second'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 4)); $offset += 4; $info['la']['bytes_per_sample'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 2)); $offset += 2; $info['la']['bits_per_sample'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 2)); $offset += 2; $info['la']['samples'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 4)); $offset += 4; $info['la']['raw']['flags'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 1)); $offset += 1; $info['la']['flags']['seekable'] = (bool) ($info['la']['raw']['flags'] & 0x1); if ($info['la']['version'] >= 0.4) { $info['la']['flags']['high_compression'] = (bool) ($info['la']['raw']['flags'] & 0x2); } $info['la']['original_crc'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 4)); $offset += 4; // mikeØbevin*de // Basically, the blocksize/seekevery are 61440/19 in La0.4 and 73728/16 // in earlier versions. A seekpoint is added every blocksize * seekevery // samples, so 4 * int(totalSamples / (blockSize * seekEvery)) should // give the number of bytes used for the seekpoints. Of course, if seeking // is disabled, there are no seekpoints stored. if ($info['la']['version'] >= 0.4) { $info['la']['blocksize'] = 61440; $info['la']['seekevery'] = 19; } else { $info['la']['blocksize'] = 73728; $info['la']['seekevery'] = 16; } $info['la']['seekpoint_count'] = 0; if ($info['la']['flags']['seekable']) { $info['la']['seekpoint_count'] = floor($info['la']['samples'] / ($info['la']['blocksize'] * $info['la']['seekevery'])); for ($i = 0; $i < $info['la']['seekpoint_count']; $i++) { $info['la']['seekpoints'][] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 4)); $offset += 4; } } if ($info['la']['version'] >= 0.3) { // Following the main header information, the program outputs all of the // seekpoints. Following these is what I called the 'footer start', // i.e. the position immediately after the La audio data is finished. $info['la']['footerstart'] = GetId3_Lib_Helper::LittleEndian2Int(substr($rawdata, $offset, 4)); $offset += 4; if ($info['la']['footerstart'] > $info['filesize']) { $info['warning'][] = 'FooterStart value points to offset ' . $info['la']['footerstart'] . ' which is beyond end-of-file (' . $info['filesize'] . ')'; $info['la']['footerstart'] = $info['filesize']; } } else { // La v0.2 didn't have FooterStart value $info['la']['footerstart'] = $info['avdataend']; } if ($info['la']['footerstart'] < $info['avdataend']) { if ($RIFFtempfilename = tempnam(GetId3_GetId3::getTempDir(), 'id3')) { if ($RIFF_fp = fopen($RIFFtempfilename, 'w+b')) { $RIFFdata = 'WAVE'; if ($info['la']['version'] == 0.2) { $RIFFdata .= substr($rawdata, 12, 24); } else { $RIFFdata .= substr($rawdata, 16, 24); } if ($info['la']['footerstart'] < $info['avdataend']) { fseek($this->getid3->fp, $info['la']['footerstart'], SEEK_SET); $RIFFdata .= fread($this->getid3->fp, $info['avdataend'] - $info['la']['footerstart']); } $RIFFdata = 'RIFF' . GetId3_Lib_Helper::LittleEndian2String(strlen($RIFFdata), 4, false) . $RIFFdata; fwrite($RIFF_fp, $RIFFdata, strlen($RIFFdata)); fclose($RIFF_fp); $getid3_temp = new GetId3_GetId3(); $getid3_temp->openfile($RIFFtempfilename); $getid3_riff = new GetId3_Module_AudioVideo_Riff($getid3_temp); $getid3_riff->Analyze(); if (empty($getid3_temp->info['error'])) { $info['riff'] = $getid3_temp->info['riff']; } else { $info['warning'][] = 'Error parsing RIFF portion of La file: ' . implode($getid3_temp->info['error']); } unset($getid3_temp, $getid3_riff); } unlink($RIFFtempfilename); } } // $info['avdataoffset'] should be zero to begin with, but just in case it's not, include the addition anyway $info['avdataend'] = $info['avdataoffset'] + $info['la']['footerstart']; $info['avdataoffset'] = $info['avdataoffset'] + $offset; //$info['la']['codec'] = RIFFwFormatTagLookup($info['la']['raw']['format']); $info['la']['compression_ratio'] = (double) (($info['avdataend'] - $info['avdataoffset']) / $info['la']['uncompressed_size']); $info['playtime_seconds'] = (double) ($info['la']['samples'] / $info['la']['sample_rate']) / $info['la']['channels']; if ($info['playtime_seconds'] == 0) { $info['error'][] = 'Corrupt LA file: playtime_seconds == zero'; return false; } $info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; //$info['audio']['codec'] = $info['la']['codec']; $info['audio']['bits_per_sample'] = $info['la']['bits_per_sample']; break; default: if (substr($rawdata, $offset, 2) == 'LA') { $info['error'][] = 'This version of GetId3() [' . $this->getid3->version() . '] does not support LA version ' . substr($rawdata, $offset + 2, 1) . '.' . substr($rawdata, $offset + 3, 1) . ' which this appears to be - check http://getid3.sourceforge.net for updates.'; } else { $info['error'][] = 'Not a LA (Lossless-Audio) file'; } return false; break; } $info['audio']['channels'] = $info['la']['channels']; $info['audio']['sample_rate'] = (int) $info['la']['sample_rate']; $info['audio']['encoder'] = 'LA v' . $info['la']['version']; return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $FLVdataLength = $info['avdataend'] - $info['avdataoffset']; $FLVheader = fread($this->getid3->fp, 5); $info['fileformat'] = 'flv'; $info['flv']['header']['signature'] = substr($FLVheader, 0, 3); $info['flv']['header']['version'] = GetId3_Lib_Helper::BigEndian2Int(substr($FLVheader, 3, 1)); $TypeFlags = GetId3_Lib_Helper::BigEndian2Int(substr($FLVheader, 4, 1)); $magic = 'FLV'; if ($info['flv']['header']['signature'] != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($info['flv']['header']['signature']) . '"'; unset($info['flv']); unset($info['fileformat']); return false; } $info['flv']['header']['hasAudio'] = (bool) ($TypeFlags & 0x4); $info['flv']['header']['hasVideo'] = (bool) ($TypeFlags & 0x1); $FrameSizeDataLength = GetId3_Lib_Helper::BigEndian2Int(fread($this->getid3->fp, 4)); $FLVheaderFrameLength = 9; if ($FrameSizeDataLength > $FLVheaderFrameLength) { fseek($this->getid3->fp, $FrameSizeDataLength - $FLVheaderFrameLength, SEEK_CUR); } $Duration = 0; $found_video = false; $found_audio = false; $found_meta = false; $found_valid_meta_playtime = false; $tagParseCount = 0; $info['flv']['framecount'] = array('total' => 0, 'audio' => 0, 'video' => 0); $flv_framecount =& $info['flv']['framecount']; while (ftell($this->getid3->fp) + 16 < $info['avdataend'] && ($tagParseCount++ <= $this->max_frames || !$found_valid_meta_playtime)) { $ThisTagHeader = fread($this->getid3->fp, 16); $PreviousTagLength = GetId3_Lib_Helper::BigEndian2Int(substr($ThisTagHeader, 0, 4)); $TagType = GetId3_Lib_Helper::BigEndian2Int(substr($ThisTagHeader, 4, 1)); $DataLength = GetId3_Lib_Helper::BigEndian2Int(substr($ThisTagHeader, 5, 3)); $Timestamp = GetId3_Lib_Helper::BigEndian2Int(substr($ThisTagHeader, 8, 3)); $LastHeaderByte = GetId3_Lib_Helper::BigEndian2Int(substr($ThisTagHeader, 15, 1)); $NextOffset = ftell($this->getid3->fp) - 1 + $DataLength; if ($Timestamp > $Duration) { $Duration = $Timestamp; } $flv_framecount['total']++; switch ($TagType) { case self::GETID3_FLV_TAG_AUDIO: $flv_framecount['audio']++; if (!$found_audio) { $found_audio = true; $info['flv']['audio']['audioFormat'] = $LastHeaderByte >> 4 & 0xf; $info['flv']['audio']['audioRate'] = $LastHeaderByte >> 2 & 0x3; $info['flv']['audio']['audioSampleSize'] = $LastHeaderByte >> 1 & 0x1; $info['flv']['audio']['audioType'] = $LastHeaderByte & 0x1; } break; case self::GETID3_FLV_TAG_VIDEO: $flv_framecount['video']++; if (!$found_video) { $found_video = true; $info['flv']['video']['videoCodec'] = $LastHeaderByte & 0x7; $FLVvideoHeader = fread($this->getid3->fp, 11); if ($info['flv']['video']['videoCodec'] == self::GETID3_FLV_VIDEO_H264) { // this code block contributed by: moysevichØgmail*com $AVCPacketType = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 0, 1)); if ($AVCPacketType == GetId3_Module_AudioVideo_AVCSequenceParameterSetReader::H264_AVC_SEQUENCE_HEADER) { // read AVCDecoderConfigurationRecord $configurationVersion = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 4, 1)); $AVCProfileIndication = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 5, 1)); $profile_compatibility = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 6, 1)); $lengthSizeMinusOne = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 7, 1)); $numOfSequenceParameterSets = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 8, 1)); if (($numOfSequenceParameterSets & 0x1f) != 0) { // there is at least one SequenceParameterSet // read size of the first SequenceParameterSet //$spsSize = GetId3_lib::BigEndian2Int(substr($FLVvideoHeader, 9, 2)); $spsSize = GetId3_Lib_Helper::LittleEndian2Int(substr($FLVvideoHeader, 9, 2)); // read the first SequenceParameterSet $sps = fread($this->getid3->fp, $spsSize); if (strlen($sps) == $spsSize) { // make sure that whole SequenceParameterSet was red $spsReader = new GetId3_Module_AudioVideo_AVCSequenceParameterSetReader($sps); $spsReader->readData(); $info['video']['resolution_x'] = $spsReader->getWidth(); $info['video']['resolution_y'] = $spsReader->getHeight(); } } } // end: moysevichØgmail*com } elseif ($info['flv']['video']['videoCodec'] == self::GETID3_FLV_VIDEO_H263) { $PictureSizeType = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 3, 2)) >> 7; $PictureSizeType = $PictureSizeType & 0x7; $info['flv']['header']['videoSizeType'] = $PictureSizeType; switch ($PictureSizeType) { case 0: //$PictureSizeEnc = GetId3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2)); //$PictureSizeEnc <<= 1; //$info['video']['resolution_x'] = ($PictureSizeEnc & 0xFF00) >> 8; //$PictureSizeEnc = GetId3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2)); //$PictureSizeEnc <<= 1; //$info['video']['resolution_y'] = ($PictureSizeEnc & 0xFF00) >> 8; $PictureSizeEnc['x'] = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 4, 2)); $PictureSizeEnc['y'] = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 5, 2)); $PictureSizeEnc['x'] >>= 7; $PictureSizeEnc['y'] >>= 7; $info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xff; $info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xff; break; case 1: $PictureSizeEnc['x'] = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 4, 3)); $PictureSizeEnc['y'] = GetId3_Lib_Helper::BigEndian2Int(substr($FLVvideoHeader, 6, 3)); $PictureSizeEnc['x'] >>= 7; $PictureSizeEnc['y'] >>= 7; $info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xffff; $info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xffff; break; case 2: $info['video']['resolution_x'] = 352; $info['video']['resolution_y'] = 288; break; case 3: $info['video']['resolution_x'] = 176; $info['video']['resolution_y'] = 144; break; case 4: $info['video']['resolution_x'] = 128; $info['video']['resolution_y'] = 96; break; case 5: $info['video']['resolution_x'] = 320; $info['video']['resolution_y'] = 240; break; case 6: $info['video']['resolution_x'] = 160; $info['video']['resolution_y'] = 120; break; default: $info['video']['resolution_x'] = 0; $info['video']['resolution_y'] = 0; break; } } $info['video']['pixel_aspect_ratio'] = $info['video']['resolution_x'] / $info['video']['resolution_y']; } break; // Meta tag // Meta tag case self::GETID3_FLV_TAG_META: if (!$found_meta) { $found_meta = true; fseek($this->getid3->fp, -1, SEEK_CUR); $datachunk = fread($this->getid3->fp, $DataLength); $AMFstream = new GetId3_Module_AudioVideo_AMFStream($datachunk); $reader = new GetId3_Module_AudioVideo_AMFReader($AMFstream); $eventName = $reader->readData(); $info['flv']['meta'][$eventName] = $reader->readData(); unset($reader); $copykeys = array('framerate' => 'frame_rate', 'width' => 'resolution_x', 'height' => 'resolution_y', 'audiodatarate' => 'bitrate', 'videodatarate' => 'bitrate'); foreach ($copykeys as $sourcekey => $destkey) { if (isset($info['flv']['meta']['onMetaData'][$sourcekey])) { switch ($sourcekey) { case 'width': case 'height': $info['video'][$destkey] = intval(round($info['flv']['meta']['onMetaData'][$sourcekey])); break; case 'audiodatarate': $info['audio'][$destkey] = GetId3_Lib_Helper::CastAsInt(round($info['flv']['meta']['onMetaData'][$sourcekey] * 1000)); break; case 'videodatarate': case 'frame_rate': default: $info['video'][$destkey] = $info['flv']['meta']['onMetaData'][$sourcekey]; break; } } } if (!empty($info['flv']['meta']['onMetaData']['duration'])) { $found_valid_meta_playtime = true; } } break; default: // noop break; } fseek($this->getid3->fp, $NextOffset, SEEK_SET); } $info['playtime_seconds'] = $Duration / 1000; if ($info['playtime_seconds'] > 0) { $info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; } if ($info['flv']['header']['hasAudio']) { $info['audio']['codec'] = $this->FLVaudioFormat($info['flv']['audio']['audioFormat']); $info['audio']['sample_rate'] = $this->FLVaudioRate($info['flv']['audio']['audioRate']); $info['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($info['flv']['audio']['audioSampleSize']); $info['audio']['channels'] = $info['flv']['audio']['audioType'] + 1; // 0=mono,1=stereo $info['audio']['lossless'] = $info['flv']['audio']['audioFormat'] ? false : true; // 0=uncompressed $info['audio']['dataformat'] = 'flv'; } if (!empty($info['flv']['header']['hasVideo'])) { $info['video']['codec'] = $this->FLVvideoCodec($info['flv']['video']['videoCodec']); $info['video']['dataformat'] = 'flv'; $info['video']['lossless'] = false; } // Set information from meta if (!empty($info['flv']['meta']['onMetaData']['duration'])) { $info['playtime_seconds'] = $info['flv']['meta']['onMetaData']['duration']; $info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; } if (isset($info['flv']['meta']['onMetaData']['audiocodecid'])) { $info['audio']['codec'] = $this->FLVaudioFormat($info['flv']['meta']['onMetaData']['audiocodecid']); } if (isset($info['flv']['meta']['onMetaData']['videocodecid'])) { $info['video']['codec'] = $this->FLVvideoCodec($info['flv']['meta']['onMetaData']['videocodecid']); } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; // shortcut $info['midi']['raw'] = array(); $thisfile_midi =& $info['midi']; $thisfile_midi_raw =& $thisfile_midi['raw']; $info['fileformat'] = 'midi'; $info['audio']['dataformat'] = 'midi'; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $MIDIdata = fread($this->getid3->fp, $this->getid3->fread_buffer_size()); $offset = 0; $MIDIheaderID = substr($MIDIdata, $offset, 4); // 'MThd' if ($MIDIheaderID != self::GETID3_MIDI_MAGIC_MTHD) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes(self::GETID3_MIDI_MAGIC_MTHD) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($MIDIheaderID) . '"'; unset($info['fileformat']); return false; } $offset += 4; $thisfile_midi_raw['headersize'] = GetId3_Lib_Helper::BigEndian2Int(substr($MIDIdata, $offset, 4)); $offset += 4; $thisfile_midi_raw['fileformat'] = GetId3_Lib_Helper::BigEndian2Int(substr($MIDIdata, $offset, 2)); $offset += 2; $thisfile_midi_raw['tracks'] = GetId3_Lib_Helper::BigEndian2Int(substr($MIDIdata, $offset, 2)); $offset += 2; $thisfile_midi_raw['ticksperqnote'] = GetId3_Lib_Helper::BigEndian2Int(substr($MIDIdata, $offset, 2)); $offset += 2; for ($i = 0; $i < $thisfile_midi_raw['tracks']; $i++) { while (strlen($MIDIdata) - $offset < 8) { $MIDIdata .= fread($this->getid3->fp, $this->getid3->fread_buffer_size()); } $trackID = substr($MIDIdata, $offset, 4); $offset += 4; if ($trackID == self::GETID3_MIDI_MAGIC_MTRK) { $tracksize = GetId3_Lib_Helper::BigEndian2Int(substr($MIDIdata, $offset, 4)); $offset += 4; // $thisfile_midi['tracks'][$i]['size'] = $tracksize; $trackdataarray[$i] = substr($MIDIdata, $offset, $tracksize); $offset += $tracksize; } else { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes(self::GETID3_MIDI_MAGIC_MTRK) . '" at ' . ($offset - 4) . ', found "' . GetId3_Lib_Helper::PrintHexBytes($trackID) . '" instead'; return false; } } if (!isset($trackdataarray) || !is_array($trackdataarray)) { $info['error'][] = 'Cannot find MIDI track information'; unset($thisfile_midi); unset($info['fileformat']); return false; } if ($this->scanwholefile) { // this can take quite a long time, so have the option to bypass it if speed is very important $thisfile_midi['totalticks'] = 0; $info['playtime_seconds'] = 0; $CurrentMicroSecondsPerBeat = 500000; // 120 beats per minute; 60,000,000 microseconds per minute -> 500,000 microseconds per beat $CurrentBeatsPerMinute = 120; // 120 beats per minute; 60,000,000 microseconds per minute -> 500,000 microseconds per beat $MicroSecondsPerQuarterNoteAfter = array(); foreach ($trackdataarray as $tracknumber => $trackdata) { $eventsoffset = 0; $LastIssuedMIDIcommand = 0; $LastIssuedMIDIchannel = 0; $CumulativeDeltaTime = 0; $TicksAtCurrentBPM = 0; while ($eventsoffset < strlen($trackdata)) { $eventid = 0; if (isset($MIDIevents[$tracknumber]) && is_array($MIDIevents[$tracknumber])) { $eventid = count($MIDIevents[$tracknumber]); } $deltatime = 0; for ($i = 0; $i < 4; $i++) { $deltatimebyte = ord(substr($trackdata, $eventsoffset++, 1)); $deltatime = ($deltatime << 7) + ($deltatimebyte & 0x7f); if ($deltatimebyte & 0x80) { // another byte follows } else { break; } } $CumulativeDeltaTime += $deltatime; $TicksAtCurrentBPM += $deltatime; $MIDIevents[$tracknumber][$eventid]['deltatime'] = $deltatime; $MIDI_event_channel = ord(substr($trackdata, $eventsoffset++, 1)); if ($MIDI_event_channel & 0x80) { // OK, normal event - MIDI command has MSB set $LastIssuedMIDIcommand = $MIDI_event_channel >> 4; $LastIssuedMIDIchannel = $MIDI_event_channel & 0xf; } else { // running event - assume last command $eventsoffset--; } $MIDIevents[$tracknumber][$eventid]['eventid'] = $LastIssuedMIDIcommand; $MIDIevents[$tracknumber][$eventid]['channel'] = $LastIssuedMIDIchannel; if ($MIDIevents[$tracknumber][$eventid]['eventid'] == 0x8) { // Note off (key is released) $notenumber = ord(substr($trackdata, $eventsoffset++, 1)); $velocity = ord(substr($trackdata, $eventsoffset++, 1)); } elseif ($MIDIevents[$tracknumber][$eventid]['eventid'] == 0x9) { // Note on (key is pressed) $notenumber = ord(substr($trackdata, $eventsoffset++, 1)); $velocity = ord(substr($trackdata, $eventsoffset++, 1)); } elseif ($MIDIevents[$tracknumber][$eventid]['eventid'] == 0xa) { // Key after-touch $notenumber = ord(substr($trackdata, $eventsoffset++, 1)); $velocity = ord(substr($trackdata, $eventsoffset++, 1)); } elseif ($MIDIevents[$tracknumber][$eventid]['eventid'] == 0xb) { // Control Change $controllernum = ord(substr($trackdata, $eventsoffset++, 1)); $newvalue = ord(substr($trackdata, $eventsoffset++, 1)); } elseif ($MIDIevents[$tracknumber][$eventid]['eventid'] == 0xc) { // Program (patch) change $newprogramnum = ord(substr($trackdata, $eventsoffset++, 1)); $thisfile_midi_raw['track'][$tracknumber]['instrumentid'] = $newprogramnum; if ($tracknumber == 10) { $thisfile_midi_raw['track'][$tracknumber]['instrument'] = $this->GeneralMIDIpercussionLookup($newprogramnum); } else { $thisfile_midi_raw['track'][$tracknumber]['instrument'] = $this->GeneralMIDIinstrumentLookup($newprogramnum); } } elseif ($MIDIevents[$tracknumber][$eventid]['eventid'] == 0xd) { // Channel after-touch $channelnumber = ord(substr($trackdata, $eventsoffset++, 1)); } elseif ($MIDIevents[$tracknumber][$eventid]['eventid'] == 0xe) { // Pitch wheel change (2000H is normal or no change) $changeLSB = ord(substr($trackdata, $eventsoffset++, 1)); $changeMSB = ord(substr($trackdata, $eventsoffset++, 1)); $pitchwheelchange = ($changeMSB & 0x7f) << 7 & ($changeLSB & 0x7f); } elseif ($MIDIevents[$tracknumber][$eventid]['eventid'] == 0xf && $MIDIevents[$tracknumber][$eventid]['channel'] == 0xf) { $METAeventCommand = ord(substr($trackdata, $eventsoffset++, 1)); $METAeventLength = ord(substr($trackdata, $eventsoffset++, 1)); $METAeventData = substr($trackdata, $eventsoffset, $METAeventLength); $eventsoffset += $METAeventLength; switch ($METAeventCommand) { case 0x0: // Set track sequence number $track_sequence_number = GetId3_Lib_Helper::BigEndian2Int(substr($METAeventData, 0, $METAeventLength)); //$thisfile_midi_raw['events'][$tracknumber][$eventid]['seqno'] = $track_sequence_number; break; case 0x1: // Text: generic $text_generic = substr($METAeventData, 0, $METAeventLength); //$thisfile_midi_raw['events'][$tracknumber][$eventid]['text'] = $text_generic; $thisfile_midi['comments']['comment'][] = $text_generic; break; case 0x2: // Text: copyright $text_copyright = substr($METAeventData, 0, $METAeventLength); //$thisfile_midi_raw['events'][$tracknumber][$eventid]['copyright'] = $text_copyright; $thisfile_midi['comments']['copyright'][] = $text_copyright; break; case 0x3: // Text: track name $text_trackname = substr($METAeventData, 0, $METAeventLength); $thisfile_midi_raw['track'][$tracknumber]['name'] = $text_trackname; break; case 0x4: // Text: track instrument name $text_instrument = substr($METAeventData, 0, $METAeventLength); //$thisfile_midi_raw['events'][$tracknumber][$eventid]['instrument'] = $text_instrument; break; case 0x5: // Text: lyrics $text_lyrics = substr($METAeventData, 0, $METAeventLength); //$thisfile_midi_raw['events'][$tracknumber][$eventid]['lyrics'] = $text_lyrics; if (!isset($thisfile_midi['lyrics'])) { $thisfile_midi['lyrics'] = ''; } $thisfile_midi['lyrics'] .= $text_lyrics . "\n"; break; case 0x6: // Text: marker $text_marker = substr($METAeventData, 0, $METAeventLength); //$thisfile_midi_raw['events'][$tracknumber][$eventid]['marker'] = $text_marker; break; case 0x7: // Text: cue point $text_cuepoint = substr($METAeventData, 0, $METAeventLength); //$thisfile_midi_raw['events'][$tracknumber][$eventid]['cuepoint'] = $text_cuepoint; break; case 0x2f: // End Of Track //$thisfile_midi_raw['events'][$tracknumber][$eventid]['EOT'] = $CumulativeDeltaTime; break; case 0x51: // Tempo: microseconds / quarter note $CurrentMicroSecondsPerBeat = GetId3_Lib_Helper::BigEndian2Int(substr($METAeventData, 0, $METAeventLength)); if ($CurrentMicroSecondsPerBeat == 0) { $info['error'][] = 'Corrupt MIDI file: CurrentMicroSecondsPerBeat == zero'; return false; } $thisfile_midi_raw['events'][$tracknumber][$CumulativeDeltaTime]['us_qnote'] = $CurrentMicroSecondsPerBeat; $CurrentBeatsPerMinute = 1000000 / $CurrentMicroSecondsPerBeat * 60; $MicroSecondsPerQuarterNoteAfter[$CumulativeDeltaTime] = $CurrentMicroSecondsPerBeat; $TicksAtCurrentBPM = 0; break; case 0x58: // Time signature $timesig_numerator = GetId3_Lib_Helper::BigEndian2Int($METAeventData[0]); $timesig_denominator = pow(2, GetId3_Lib_Helper::BigEndian2Int($METAeventData[1])); // $02 -> x/4, $03 -> x/8, etc $timesig_32inqnote = GetId3_Lib_Helper::BigEndian2Int($METAeventData[2]); // number of 32nd notes to the quarter note //$thisfile_midi_raw['events'][$tracknumber][$eventid]['timesig_32inqnote'] = $timesig_32inqnote; //$thisfile_midi_raw['events'][$tracknumber][$eventid]['timesig_numerator'] = $timesig_numerator; //$thisfile_midi_raw['events'][$tracknumber][$eventid]['timesig_denominator'] = $timesig_denominator; //$thisfile_midi_raw['events'][$tracknumber][$eventid]['timesig_text'] = $timesig_numerator.'/'.$timesig_denominator; $thisfile_midi['timesignature'][] = $timesig_numerator . '/' . $timesig_denominator; break; case 0x59: // Keysignature $keysig_sharpsflats = GetId3_Lib_Helper::BigEndian2Int($METAeventData[0]); if ($keysig_sharpsflats & 0x80) { // (-7 -> 7 flats, 0 ->key of C, 7 -> 7 sharps) $keysig_sharpsflats -= 256; } $keysig_majorminor = GetId3_Lib_Helper::BigEndian2Int($METAeventData[1]); // 0 -> major, 1 -> minor $keysigs = array(-7 => 'Cb', -6 => 'Gb', -5 => 'Db', -4 => 'Ab', -3 => 'Eb', -2 => 'Bb', -1 => 'F', 0 => 'C', 1 => 'G', 2 => 'D', 3 => 'A', 4 => 'E', 5 => 'B', 6 => 'F#', 7 => 'C#'); //$thisfile_midi_raw['events'][$tracknumber][$eventid]['keysig_sharps'] = (($keysig_sharpsflats > 0) ? abs($keysig_sharpsflats) : 0); //$thisfile_midi_raw['events'][$tracknumber][$eventid]['keysig_flats'] = (($keysig_sharpsflats < 0) ? abs($keysig_sharpsflats) : 0); //$thisfile_midi_raw['events'][$tracknumber][$eventid]['keysig_minor'] = (bool) $keysig_majorminor; //$thisfile_midi_raw['events'][$tracknumber][$eventid]['keysig_text'] = $keysigs[$keysig_sharpsflats].' '.($thisfile_midi_raw['events'][$tracknumber][$eventid]['keysig_minor'] ? 'minor' : 'major'); // $keysigs[$keysig_sharpsflats] gets an int key (correct) - $keysigs["$keysig_sharpsflats"] gets a string key (incorrect) $thisfile_midi['keysignature'][] = $keysigs[$keysig_sharpsflats] . ' ' . ((bool) $keysig_majorminor ? 'minor' : 'major'); break; case 0x7f: // Sequencer specific information $custom_data = substr($METAeventData, 0, $METAeventLength); break; default: $info['warning'][] = 'Unhandled META Event Command: ' . $METAeventCommand; break; } } else { $info['warning'][] = 'Unhandled MIDI Event ID: ' . $MIDIevents[$tracknumber][$eventid]['eventid'] . ' + Channel ID: ' . $MIDIevents[$tracknumber][$eventid]['channel']; } } if ($tracknumber > 0 || count($trackdataarray) == 1) { $thisfile_midi['totalticks'] = max($thisfile_midi['totalticks'], $CumulativeDeltaTime); } } $previoustickoffset = null; ksort($MicroSecondsPerQuarterNoteAfter); foreach ($MicroSecondsPerQuarterNoteAfter as $tickoffset => $microsecondsperbeat) { if (is_null($previoustickoffset)) { $prevmicrosecondsperbeat = $microsecondsperbeat; $previoustickoffset = $tickoffset; continue; } if ($thisfile_midi['totalticks'] > $tickoffset) { if ($thisfile_midi_raw['ticksperqnote'] == 0) { $info['error'][] = 'Corrupt MIDI file: ticksperqnote == zero'; return false; } $info['playtime_seconds'] += ($tickoffset - $previoustickoffset) / $thisfile_midi_raw['ticksperqnote'] * ($prevmicrosecondsperbeat / 1000000); $prevmicrosecondsperbeat = $microsecondsperbeat; $previoustickoffset = $tickoffset; } } if ($thisfile_midi['totalticks'] > $previoustickoffset) { if ($thisfile_midi_raw['ticksperqnote'] == 0) { $info['error'][] = 'Corrupt MIDI file: ticksperqnote == zero'; return false; } $info['playtime_seconds'] += ($thisfile_midi['totalticks'] - $previoustickoffset) / $thisfile_midi_raw['ticksperqnote'] * ($microsecondsperbeat / 1000000); } } if (!empty($info['playtime_seconds'])) { $info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; } if (!empty($thisfile_midi['lyrics'])) { $thisfile_midi['comments']['lyrics'][] = $thisfile_midi['lyrics']; } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; $OriginalAVdataOffset = $info['avdataoffset']; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $VOCheader = fread($this->getid3->fp, 26); $magic = 'Creative Voice File'; if (substr($VOCheader, 0, 19) != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes(substr($VOCheader, 0, 19)) . '"'; return false; } // shortcuts $thisfile_audio =& $info['audio']; $info['voc'] = array(); $thisfile_voc =& $info['voc']; $info['fileformat'] = 'voc'; $thisfile_audio['dataformat'] = 'voc'; $thisfile_audio['bitrate_mode'] = 'cbr'; $thisfile_audio['lossless'] = true; $thisfile_audio['channels'] = 1; // might be overriden below $thisfile_audio['bits_per_sample'] = 8; // might be overriden below // byte # Description // ------ ------------------------------------------ // 00-12 'Creative Voice File' // 13 1A (eof to abort printing of file) // 14-15 Offset of first datablock in .voc file (std 1A 00 in Intel Notation) // 16-17 Version number (minor,major) (VOC-HDR puts 0A 01) // 18-19 2's Comp of Ver. # + 1234h (VOC-HDR puts 29 11) $thisfile_voc['header']['datablock_offset'] = GetId3_Lib_Helper::LittleEndian2Int(substr($VOCheader, 20, 2)); $thisfile_voc['header']['minor_version'] = GetId3_Lib_Helper::LittleEndian2Int(substr($VOCheader, 22, 1)); $thisfile_voc['header']['major_version'] = GetId3_Lib_Helper::LittleEndian2Int(substr($VOCheader, 23, 1)); do { $BlockOffset = ftell($this->getid3->fp); $BlockData = fread($this->getid3->fp, 4); $BlockType = ord($BlockData[0]); $BlockSize = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 1, 3)); $ThisBlock = array(); GetId3_Lib_Helper::safe_inc($thisfile_voc['blocktypes'][$BlockType], 1); switch ($BlockType) { case 0: // Terminator // do nothing, we'll break out of the loop down below break; case 1: // Sound data $BlockData .= fread($this->getid3->fp, 2); if ($info['avdataoffset'] <= $OriginalAVdataOffset) { $info['avdataoffset'] = ftell($this->getid3->fp); } fseek($this->getid3->fp, $BlockSize - 2, SEEK_CUR); $ThisBlock['sample_rate_id'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 4, 1)); $ThisBlock['compression_type'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 5, 1)); $ThisBlock['compression_name'] = $this->VOCcompressionTypeLookup($ThisBlock['compression_type']); if ($ThisBlock['compression_type'] <= 3) { $thisfile_voc['compressed_bits_per_sample'] = GetId3_Lib_Helper::CastAsInt(str_replace('-bit', '', $ThisBlock['compression_name'])); } // Less accurate sample_rate calculation than the Extended block (#8) data (but better than nothing if Extended Block is not available) if (empty($thisfile_audio['sample_rate'])) { // SR byte = 256 - (1000000 / sample_rate) $thisfile_audio['sample_rate'] = GetId3_Lib_Helper::trunc(1000000 / (256 - $ThisBlock['sample_rate_id']) / $thisfile_audio['channels']); } break; case 2: // Sound continue // Sound continue case 3: // Silence // Silence case 4: // Marker // Marker case 6: // Repeat // Repeat case 7: // End repeat // nothing useful, just skip fseek($this->getid3->fp, $BlockSize, SEEK_CUR); break; case 8: // Extended $BlockData .= fread($this->getid3->fp, 4); //00-01 Time Constant: // Mono: 65536 - (256000000 / sample_rate) // Stereo: 65536 - (256000000 / (sample_rate * 2)) $ThisBlock['time_constant'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 4, 2)); $ThisBlock['pack_method'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 6, 1)); $ThisBlock['stereo'] = (bool) GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 7, 1)); $thisfile_audio['channels'] = $ThisBlock['stereo'] ? 2 : 1; $thisfile_audio['sample_rate'] = GetId3_Lib_Helper::trunc(256000000 / (65536 - $ThisBlock['time_constant']) / $thisfile_audio['channels']); break; case 9: // data block that supersedes blocks 1 and 8. Used for stereo, 16 bit $BlockData .= fread($this->getid3->fp, 12); if ($info['avdataoffset'] <= $OriginalAVdataOffset) { $info['avdataoffset'] = ftell($this->getid3->fp); } fseek($this->getid3->fp, $BlockSize - 12, SEEK_CUR); $ThisBlock['sample_rate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 4, 4)); $ThisBlock['bits_per_sample'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 8, 1)); $ThisBlock['channels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 9, 1)); $ThisBlock['wFormat'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BlockData, 10, 2)); $ThisBlock['compression_name'] = $this->VOCwFormatLookup($ThisBlock['wFormat']); if ($this->VOCwFormatActualBitsPerSampleLookup($ThisBlock['wFormat'])) { $thisfile_voc['compressed_bits_per_sample'] = $this->VOCwFormatActualBitsPerSampleLookup($ThisBlock['wFormat']); } $thisfile_audio['sample_rate'] = $ThisBlock['sample_rate']; $thisfile_audio['bits_per_sample'] = $ThisBlock['bits_per_sample']; $thisfile_audio['channels'] = $ThisBlock['channels']; break; default: $info['warning'][] = 'Unhandled block type "' . $BlockType . '" at offset ' . $BlockOffset; fseek($this->getid3->fp, $BlockSize, SEEK_CUR); break; } if (!empty($ThisBlock)) { $ThisBlock['block_offset'] = $BlockOffset; $ThisBlock['block_size'] = $BlockSize; $ThisBlock['block_type_id'] = $BlockType; $thisfile_voc['blocks'][] = $ThisBlock; } } while (!feof($this->getid3->fp) && $BlockType != 0); // Terminator block doesn't have size field, so seek back 3 spaces fseek($this->getid3->fp, -3, SEEK_CUR); ksort($thisfile_voc['blocktypes']); if (!empty($thisfile_voc['compressed_bits_per_sample'])) { $info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / ($thisfile_voc['compressed_bits_per_sample'] * $thisfile_audio['channels'] * $thisfile_audio['sample_rate']); $thisfile_audio['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); while (true) { $wavpackheader = fread($this->getid3->fp, 32); if (ftell($this->getid3->fp) >= $info['avdataend']) { break; } elseif (feof($this->getid3->fp)) { break; } elseif (isset($info['wavpack']['blockheader']['total_samples']) && isset($info['wavpack']['blockheader']['block_samples']) && $info['wavpack']['blockheader']['total_samples'] > 0 && $info['wavpack']['blockheader']['block_samples'] > 0 && (!isset($info['wavpack']['riff_trailer_size']) || $info['wavpack']['riff_trailer_size'] <= 0) && (isset($info['wavpack']['config_flags']['md5_checksum']) && $info['wavpack']['config_flags']['md5_checksum'] === false || !empty($info['md5_data_source']))) { break; } $blockheader_offset = ftell($this->getid3->fp) - 32; $blockheader_magic = substr($wavpackheader, 0, 4); $blockheader_size = GetId3_Lib_Helper::LittleEndian2Int(substr($wavpackheader, 4, 4)); $magic = 'wvpk'; if ($blockheader_magic != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $blockheader_offset . ', found "' . GetId3_Lib_Helper::PrintHexBytes($blockheader_magic) . '"'; switch (isset($info['audio']['dataformat']) ? $info['audio']['dataformat'] : '') { case 'wavpack': case 'wvc': break; default: unset($info['fileformat']); unset($info['audio']); unset($info['wavpack']); break; } return false; } if (empty($info['wavpack']['blockheader']['block_samples']) || empty($info['wavpack']['blockheader']['total_samples']) || $info['wavpack']['blockheader']['block_samples'] <= 0 || $info['wavpack']['blockheader']['total_samples'] <= 0) { // Also, it is possible that the first block might not have // any samples (block_samples == 0) and in this case you should skip blocks // until you find one with samples because the other information (like // total_samples) are not guaranteed to be correct until (block_samples > 0) // Finally, I have defined a format for files in which the length is not known // (for example when raw files are created using pipes). In these cases // total_samples will be -1 and you must seek to the final block to determine // the total number of samples. $info['audio']['dataformat'] = 'wavpack'; $info['fileformat'] = 'wavpack'; $info['audio']['lossless'] = true; $info['audio']['bitrate_mode'] = 'vbr'; $info['wavpack']['blockheader']['offset'] = $blockheader_offset; $info['wavpack']['blockheader']['magic'] = $blockheader_magic; $info['wavpack']['blockheader']['size'] = $blockheader_size; if ($info['wavpack']['blockheader']['size'] >= 0x100000) { $info['error'][] = 'Expecting WavPack block size less than "0x100000", found "' . $info['wavpack']['blockheader']['size'] . '" at offset ' . $info['wavpack']['blockheader']['offset']; switch (isset($info['audio']['dataformat']) ? $info['audio']['dataformat'] : '') { case 'wavpack': case 'wvc': break; default: unset($info['fileformat']); unset($info['audio']); unset($info['wavpack']); break; } return false; } $info['wavpack']['blockheader']['minor_version'] = ord($wavpackheader[8]); $info['wavpack']['blockheader']['major_version'] = ord($wavpackheader[9]); if ($info['wavpack']['blockheader']['major_version'] != 4 || $info['wavpack']['blockheader']['minor_version'] < 4 && $info['wavpack']['blockheader']['minor_version'] > 16) { $info['error'][] = 'Expecting WavPack version between "4.2" and "4.16", found version "' . $info['wavpack']['blockheader']['major_version'] . '.' . $info['wavpack']['blockheader']['minor_version'] . '" at offset ' . $info['wavpack']['blockheader']['offset']; switch (isset($info['audio']['dataformat']) ? $info['audio']['dataformat'] : '') { case 'wavpack': case 'wvc': break; default: unset($info['fileformat']); unset($info['audio']); unset($info['wavpack']); break; } return false; } $info['wavpack']['blockheader']['track_number'] = ord($wavpackheader[10]); // unused $info['wavpack']['blockheader']['index_number'] = ord($wavpackheader[11]); // unused $info['wavpack']['blockheader']['total_samples'] = GetId3_Lib_Helper::LittleEndian2Int(substr($wavpackheader, 12, 4)); $info['wavpack']['blockheader']['block_index'] = GetId3_Lib_Helper::LittleEndian2Int(substr($wavpackheader, 16, 4)); $info['wavpack']['blockheader']['block_samples'] = GetId3_Lib_Helper::LittleEndian2Int(substr($wavpackheader, 20, 4)); $info['wavpack']['blockheader']['flags_raw'] = GetId3_Lib_Helper::LittleEndian2Int(substr($wavpackheader, 24, 4)); $info['wavpack']['blockheader']['crc'] = GetId3_Lib_Helper::LittleEndian2Int(substr($wavpackheader, 28, 4)); $info['wavpack']['blockheader']['flags']['bytes_per_sample'] = 1 + ($info['wavpack']['blockheader']['flags_raw'] & 0x3); $info['wavpack']['blockheader']['flags']['mono'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x4); $info['wavpack']['blockheader']['flags']['hybrid'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x8); $info['wavpack']['blockheader']['flags']['joint_stereo'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x10); $info['wavpack']['blockheader']['flags']['cross_decorrelation'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x20); $info['wavpack']['blockheader']['flags']['hybrid_noiseshape'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x40); $info['wavpack']['blockheader']['flags']['ieee_32bit_float'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x80); $info['wavpack']['blockheader']['flags']['int_32bit'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x100); $info['wavpack']['blockheader']['flags']['hybrid_bitrate_noise'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x200); $info['wavpack']['blockheader']['flags']['hybrid_balance_noise'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x400); $info['wavpack']['blockheader']['flags']['multichannel_initial'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x800); $info['wavpack']['blockheader']['flags']['multichannel_final'] = (bool) ($info['wavpack']['blockheader']['flags_raw'] & 0x1000); $info['audio']['lossless'] = !$info['wavpack']['blockheader']['flags']['hybrid']; } while (!feof($this->getid3->fp) && ftell($this->getid3->fp) < $blockheader_offset + $blockheader_size + 8) { $metablock = array('offset' => ftell($this->getid3->fp)); $metablockheader = fread($this->getid3->fp, 2); if (feof($this->getid3->fp)) { break; } $metablock['id'] = ord($metablockheader[0]); $metablock['function_id'] = $metablock['id'] & 0x3f; $metablock['function_name'] = $this->WavPackMetablockNameLookup($metablock['function_id']); // The 0x20 bit in the id of the meta subblocks (which is defined as // ID_OPTIONAL_DATA) is a permanent part of the id. The idea is that // if a decoder encounters an id that it does not know about, it uses // that "ID_OPTIONAL_DATA" flag to determine what to do. If it is set // then the decoder simply ignores the metadata, but if it is zero // then the decoder should quit because it means that an understanding // of the metadata is required to correctly decode the audio. $metablock['non_decoder'] = (bool) ($metablock['id'] & 0x20); $metablock['padded_data'] = (bool) ($metablock['id'] & 0x40); $metablock['large_block'] = (bool) ($metablock['id'] & 0x80); if ($metablock['large_block']) { $metablockheader .= fread($this->getid3->fp, 2); } $metablock['size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($metablockheader, 1)) * 2; // size is stored in words $metablock['data'] = null; if ($metablock['size'] > 0) { switch ($metablock['function_id']) { case 0x21: // ID_RIFF_HEADER // ID_RIFF_HEADER case 0x22: // ID_RIFF_TRAILER // ID_RIFF_TRAILER case 0x23: // ID_REPLAY_GAIN // ID_REPLAY_GAIN case 0x24: // ID_CUESHEET // ID_CUESHEET case 0x25: // ID_CONFIG_BLOCK // ID_CONFIG_BLOCK case 0x26: // ID_MD5_CHECKSUM $metablock['data'] = fread($this->getid3->fp, $metablock['size']); if ($metablock['padded_data']) { // padded to the nearest even byte $metablock['size']--; $metablock['data'] = substr($metablock['data'], 0, -1); } break; case 0x0: // ID_DUMMY // ID_DUMMY case 0x1: // ID_ENCODER_INFO // ID_ENCODER_INFO case 0x2: // ID_DECORR_TERMS // ID_DECORR_TERMS case 0x3: // ID_DECORR_WEIGHTS // ID_DECORR_WEIGHTS case 0x4: // ID_DECORR_SAMPLES // ID_DECORR_SAMPLES case 0x5: // ID_ENTROPY_VARS // ID_ENTROPY_VARS case 0x6: // ID_HYBRID_PROFILE // ID_HYBRID_PROFILE case 0x7: // ID_SHAPING_WEIGHTS // ID_SHAPING_WEIGHTS case 0x8: // ID_FLOAT_INFO // ID_FLOAT_INFO case 0x9: // ID_INT32_INFO // ID_INT32_INFO case 0xa: // ID_WV_BITSTREAM // ID_WV_BITSTREAM case 0xb: // ID_WVC_BITSTREAM // ID_WVC_BITSTREAM case 0xc: // ID_WVX_BITSTREAM // ID_WVX_BITSTREAM case 0xd: // ID_CHANNEL_INFO fseek($this->getid3->fp, $metablock['offset'] + ($metablock['large_block'] ? 4 : 2) + $metablock['size'], SEEK_SET); break; default: $info['warning'][] = 'Unexpected metablock type "0x' . str_pad(dechex($metablock['function_id']), 2, '0', STR_PAD_LEFT) . '" at offset ' . $metablock['offset']; fseek($this->getid3->fp, $metablock['offset'] + ($metablock['large_block'] ? 4 : 2) + $metablock['size'], SEEK_SET); break; } switch ($metablock['function_id']) { case 0x21: // ID_RIFF_HEADER $original_wav_filesize = GetId3_Lib_Helper::LittleEndian2Int(substr($metablock['data'], 4, 4)); $getid3_temp = new GetId3_GetId3(); $getid3_temp->openfile($this->getid3->filename); $getid3_riff = new GetId3_Module_AudioVideo_Riff($getid3_temp); $getid3_riff->ParseRIFFdata($metablock['data']); $metablock['riff'] = $getid3_temp->info['riff']; $info['audio']['sample_rate'] = $getid3_temp->info['riff']['raw']['fmt ']['nSamplesPerSec']; unset($getid3_riff, $getid3_temp); $metablock['riff']['original_filesize'] = $original_wav_filesize; $info['wavpack']['riff_trailer_size'] = $original_wav_filesize - $metablock['riff']['WAVE']['data'][0]['size'] - $metablock['riff']['header_size']; $info['playtime_seconds'] = $info['wavpack']['blockheader']['total_samples'] / $info['audio']['sample_rate']; // Safe RIFF header in case there's a RIFF footer later $metablockRIFFheader = $metablock['data']; break; case 0x22: // ID_RIFF_TRAILER $metablockRIFFfooter = $metablockRIFFheader . $metablock['data']; $startoffset = $metablock['offset'] + ($metablock['large_block'] ? 4 : 2); $getid3_temp = new GetId3_GetId3(); $getid3_temp->openfile($this->getid3->filename); $getid3_temp->info['avdataend'] = $info['avdataend']; $getid3_temp->info['fileformat'] = 'riff'; $getid3_riff = new GetId3_Module_AudioVideo_Riff($getid3_temp); $metablock['riff'] = $getid3_riff->ParseRIFF($startoffset, $startoffset + $metablock['size']); if (!empty($metablock['riff']['INFO'])) { $getid3_riff->RIFFcommentsParse($metablock['riff']['INFO'], $metablock['comments']); $info['tags']['riff'] = $metablock['comments']; } unset($getid3_temp, $getid3_riff); break; case 0x23: // ID_REPLAY_GAIN $info['warning'][] = 'WavPack "Replay Gain" contents not yet handled by GetId3() in metablock at offset ' . $metablock['offset']; break; case 0x24: // ID_CUESHEET $info['warning'][] = 'WavPack "Cuesheet" contents not yet handled by GetId3() in metablock at offset ' . $metablock['offset']; break; case 0x25: // ID_CONFIG_BLOCK $metablock['flags_raw'] = GetId3_Lib_Helper::LittleEndian2Int(substr($metablock['data'], 0, 3)); $metablock['flags']['adobe_mode'] = (bool) ($metablock['flags_raw'] & 0x1); // "adobe" mode for 32-bit floats $metablock['flags']['fast_flag'] = (bool) ($metablock['flags_raw'] & 0x2); // fast mode $metablock['flags']['very_fast_flag'] = (bool) ($metablock['flags_raw'] & 0x4); // double fast $metablock['flags']['high_flag'] = (bool) ($metablock['flags_raw'] & 0x8); // high quality mode $metablock['flags']['very_high_flag'] = (bool) ($metablock['flags_raw'] & 0x10); // double high (not used yet) $metablock['flags']['bitrate_kbps'] = (bool) ($metablock['flags_raw'] & 0x20); // bitrate is kbps, not bits / sample $metablock['flags']['auto_shaping'] = (bool) ($metablock['flags_raw'] & 0x40); // automatic noise shaping $metablock['flags']['shape_override'] = (bool) ($metablock['flags_raw'] & 0x80); // shaping mode specified $metablock['flags']['joint_override'] = (bool) ($metablock['flags_raw'] & 0x100); // joint-stereo mode specified $metablock['flags']['copy_time'] = (bool) ($metablock['flags_raw'] & 0x200); // copy file-time from source $metablock['flags']['create_exe'] = (bool) ($metablock['flags_raw'] & 0x400); // create executable $metablock['flags']['create_wvc'] = (bool) ($metablock['flags_raw'] & 0x800); // create correction file $metablock['flags']['optimize_wvc'] = (bool) ($metablock['flags_raw'] & 0x1000); // maximize bybrid compression $metablock['flags']['quality_mode'] = (bool) ($metablock['flags_raw'] & 0x2000); // psychoacoustic quality mode $metablock['flags']['raw_flag'] = (bool) ($metablock['flags_raw'] & 0x4000); // raw mode (not implemented yet) $metablock['flags']['calc_noise'] = (bool) ($metablock['flags_raw'] & 0x8000); // calc noise in hybrid mode $metablock['flags']['lossy_mode'] = (bool) ($metablock['flags_raw'] & 0x10000); // obsolete (for information) $metablock['flags']['extra_mode'] = (bool) ($metablock['flags_raw'] & 0x20000); // extra processing mode $metablock['flags']['skip_wvx'] = (bool) ($metablock['flags_raw'] & 0x40000); // no wvx stream w/ floats & big ints $metablock['flags']['md5_checksum'] = (bool) ($metablock['flags_raw'] & 0x80000); // compute & store MD5 signature $metablock['flags']['quiet_mode'] = (bool) ($metablock['flags_raw'] & 0x100000); // don't report progress % $info['wavpack']['config_flags'] = $metablock['flags']; $info['audio']['encoder_options'] = ''; if ($info['wavpack']['blockheader']['flags']['hybrid']) { $info['audio']['encoder_options'] .= ' -b???'; } $info['audio']['encoder_options'] .= $metablock['flags']['adobe_mode'] ? ' -a' : ''; $info['audio']['encoder_options'] .= $metablock['flags']['optimize_wvc'] ? ' -cc' : ''; $info['audio']['encoder_options'] .= $metablock['flags']['create_exe'] ? ' -e' : ''; $info['audio']['encoder_options'] .= $metablock['flags']['fast_flag'] ? ' -f' : ''; $info['audio']['encoder_options'] .= $metablock['flags']['joint_override'] ? ' -j?' : ''; $info['audio']['encoder_options'] .= $metablock['flags']['high_flag'] ? ' -h' : ''; $info['audio']['encoder_options'] .= $metablock['flags']['md5_checksum'] ? ' -m' : ''; $info['audio']['encoder_options'] .= $metablock['flags']['calc_noise'] ? ' -n' : ''; $info['audio']['encoder_options'] .= $metablock['flags']['shape_override'] ? ' -s?' : ''; $info['audio']['encoder_options'] .= $metablock['flags']['extra_mode'] ? ' -x?' : ''; if (!empty($info['audio']['encoder_options'])) { $info['audio']['encoder_options'] = trim($info['audio']['encoder_options']); } elseif (isset($info['audio']['encoder_options'])) { unset($info['audio']['encoder_options']); } break; case 0x26: // ID_MD5_CHECKSUM if (strlen($metablock['data']) == 16) { $info['md5_data_source'] = strtolower(GetId3_Lib_Helper::PrintHexBytes($metablock['data'], true, false, false)); } else { $info['warning'][] = 'Expecting 16 bytes of WavPack "MD5 Checksum" in metablock at offset ' . $metablock['offset'] . ', but found ' . strlen($metablock['data']) . ' bytes'; } break; case 0x0: // ID_DUMMY // ID_DUMMY case 0x1: // ID_ENCODER_INFO // ID_ENCODER_INFO case 0x2: // ID_DECORR_TERMS // ID_DECORR_TERMS case 0x3: // ID_DECORR_WEIGHTS // ID_DECORR_WEIGHTS case 0x4: // ID_DECORR_SAMPLES // ID_DECORR_SAMPLES case 0x5: // ID_ENTROPY_VARS // ID_ENTROPY_VARS case 0x6: // ID_HYBRID_PROFILE // ID_HYBRID_PROFILE case 0x7: // ID_SHAPING_WEIGHTS // ID_SHAPING_WEIGHTS case 0x8: // ID_FLOAT_INFO // ID_FLOAT_INFO case 0x9: // ID_INT32_INFO // ID_INT32_INFO case 0xa: // ID_WV_BITSTREAM // ID_WV_BITSTREAM case 0xb: // ID_WVC_BITSTREAM // ID_WVC_BITSTREAM case 0xc: // ID_WVX_BITSTREAM // ID_WVX_BITSTREAM case 0xd: // ID_CHANNEL_INFO unset($metablock); break; } } if (!empty($metablock)) { $info['wavpack']['metablocks'][] = $metablock; } } } $info['audio']['encoder'] = 'WavPack v' . $info['wavpack']['blockheader']['major_version'] . '.' . str_pad($info['wavpack']['blockheader']['minor_version'], 2, '0', STR_PAD_LEFT); $info['audio']['bits_per_sample'] = $info['wavpack']['blockheader']['flags']['bytes_per_sample'] * 8; $info['audio']['channels'] = $info['wavpack']['blockheader']['flags']['mono'] ? 1 : 2; if (!empty($info['playtime_seconds'])) { $info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; } else { $info['audio']['dataformat'] = 'wvc'; } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; // shortcuts $info['bmp']['header']['raw'] = array(); $thisfile_bmp =& $info['bmp']; $thisfile_bmp_header =& $thisfile_bmp['header']; $thisfile_bmp_header_raw =& $thisfile_bmp_header['raw']; // BITMAPFILEHEADER [14 bytes] - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_62uq.asp // all versions // WORD bfType; // DWORD bfSize; // WORD bfReserved1; // WORD bfReserved2; // DWORD bfOffBits; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $offset = 0; $BMPheader = fread($this->getid3->fp, 14 + 40); $thisfile_bmp_header_raw['identifier'] = substr($BMPheader, $offset, 2); $offset += 2; $magic = 'BM'; if ($thisfile_bmp_header_raw['identifier'] != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($thisfile_bmp_header_raw['identifier']) . '"'; unset($info['fileformat']); unset($info['bmp']); return false; } $thisfile_bmp_header_raw['filesize'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['reserved1'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['reserved2'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['data_offset'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['header_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; // check if the hardcoded-to-1 "planes" is at offset 22 or 26 $planes22 = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, 22, 2)); $planes26 = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, 26, 2)); if ($planes22 == 1 && $planes26 != 1) { $thisfile_bmp['type_os'] = 'OS/2'; $thisfile_bmp['type_version'] = 1; } elseif ($planes26 == 1 && $planes22 != 1) { $thisfile_bmp['type_os'] = 'Windows'; $thisfile_bmp['type_version'] = 1; } elseif ($thisfile_bmp_header_raw['header_size'] == 12) { $thisfile_bmp['type_os'] = 'OS/2'; $thisfile_bmp['type_version'] = 1; } elseif ($thisfile_bmp_header_raw['header_size'] == 40) { $thisfile_bmp['type_os'] = 'Windows'; $thisfile_bmp['type_version'] = 1; } elseif ($thisfile_bmp_header_raw['header_size'] == 84) { $thisfile_bmp['type_os'] = 'Windows'; $thisfile_bmp['type_version'] = 4; } elseif ($thisfile_bmp_header_raw['header_size'] == 100) { $thisfile_bmp['type_os'] = 'Windows'; $thisfile_bmp['type_version'] = 5; } else { $info['error'][] = 'Unknown BMP subtype (or not a BMP file)'; unset($info['fileformat']); unset($info['bmp']); return false; } $info['fileformat'] = 'bmp'; $info['video']['dataformat'] = 'bmp'; $info['video']['lossless'] = true; $info['video']['pixel_aspect_ratio'] = (double) 1; if ($thisfile_bmp['type_os'] == 'OS/2') { // OS/2-format BMP // http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm // DWORD Size; /* Size of this structure in bytes */ // DWORD Width; /* Bitmap width in pixels */ // DWORD Height; /* Bitmap height in pixel */ // WORD NumPlanes; /* Number of bit planes (color depth) */ // WORD BitsPerPixel; /* Number of bits per pixel per plane */ $thisfile_bmp_header_raw['width'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['height'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['planes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['bits_per_pixel'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $info['video']['resolution_x'] = $thisfile_bmp_header_raw['width']; $info['video']['resolution_y'] = $thisfile_bmp_header_raw['height']; $info['video']['codec'] = 'BI_RGB ' . $thisfile_bmp_header_raw['bits_per_pixel'] . '-bit'; $info['video']['bits_per_sample'] = $thisfile_bmp_header_raw['bits_per_pixel']; if ($thisfile_bmp['type_version'] >= 2) { // DWORD Compression; /* Bitmap compression scheme */ // DWORD ImageDataSize; /* Size of bitmap data in bytes */ // DWORD XResolution; /* X resolution of display device */ // DWORD YResolution; /* Y resolution of display device */ // DWORD ColorsUsed; /* Number of color table indices used */ // DWORD ColorsImportant; /* Number of important color indices */ // WORD Units; /* Type of units used to measure resolution */ // WORD Reserved; /* Pad structure to 4-byte boundary */ // WORD Recording; /* Recording algorithm */ // WORD Rendering; /* Halftoning algorithm used */ // DWORD Size1; /* Reserved for halftoning algorithm use */ // DWORD Size2; /* Reserved for halftoning algorithm use */ // DWORD ColorEncoding; /* Color model used in bitmap */ // DWORD Identifier; /* Reserved for application use */ $thisfile_bmp_header_raw['compression'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['bmp_data_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['resolution_h'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['resolution_v'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['colors_used'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['colors_important'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['resolution_units'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['reserved1'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['recording'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['rendering'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['size1'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['size2'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['color_encoding'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['identifier'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header['compression'] = $this->BMPcompressionOS2Lookup($thisfile_bmp_header_raw['compression']); $info['video']['codec'] = $thisfile_bmp_header['compression'] . ' ' . $thisfile_bmp_header_raw['bits_per_pixel'] . '-bit'; } } elseif ($thisfile_bmp['type_os'] == 'Windows') { // Windows-format BMP // BITMAPINFOHEADER - [40 bytes] http://msdn.microsoft.com/library/en-us/gdi/bitmaps_1rw2.asp // all versions // DWORD biSize; // LONG biWidth; // LONG biHeight; // WORD biPlanes; // WORD biBitCount; // DWORD biCompression; // DWORD biSizeImage; // LONG biXPelsPerMeter; // LONG biYPelsPerMeter; // DWORD biClrUsed; // DWORD biClrImportant; // possibly integrate this section and module.audio-video.riff.php::ParseBITMAPINFOHEADER() ? $thisfile_bmp_header_raw['width'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4), true); $offset += 4; $thisfile_bmp_header_raw['height'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4), true); $offset += 4; $thisfile_bmp_header_raw['planes'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['bits_per_pixel'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 2)); $offset += 2; $thisfile_bmp_header_raw['compression'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['bmp_data_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['resolution_h'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4), true); $offset += 4; $thisfile_bmp_header_raw['resolution_v'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4), true); $offset += 4; $thisfile_bmp_header_raw['colors_used'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['colors_important'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header['compression'] = $this->BMPcompressionWindowsLookup($thisfile_bmp_header_raw['compression']); $info['video']['resolution_x'] = $thisfile_bmp_header_raw['width']; $info['video']['resolution_y'] = $thisfile_bmp_header_raw['height']; $info['video']['codec'] = $thisfile_bmp_header['compression'] . ' ' . $thisfile_bmp_header_raw['bits_per_pixel'] . '-bit'; $info['video']['bits_per_sample'] = $thisfile_bmp_header_raw['bits_per_pixel']; if ($thisfile_bmp['type_version'] >= 4 || $thisfile_bmp_header_raw['compression'] == 3) { // should only be v4+, but BMPs with type_version==1 and BI_BITFIELDS compression have been seen $BMPheader .= fread($this->getid3->fp, 44); // BITMAPV4HEADER - [44 bytes] - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_2k1e.asp // Win95+, WinNT4.0+ // DWORD bV4RedMask; // DWORD bV4GreenMask; // DWORD bV4BlueMask; // DWORD bV4AlphaMask; // DWORD bV4CSType; // CIEXYZTRIPLE bV4Endpoints; // DWORD bV4GammaRed; // DWORD bV4GammaGreen; // DWORD bV4GammaBlue; $thisfile_bmp_header_raw['red_mask'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['green_mask'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['blue_mask'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['alpha_mask'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['cs_type'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['ciexyz_red'] = substr($BMPheader, $offset, 4); $offset += 4; $thisfile_bmp_header_raw['ciexyz_green'] = substr($BMPheader, $offset, 4); $offset += 4; $thisfile_bmp_header_raw['ciexyz_blue'] = substr($BMPheader, $offset, 4); $offset += 4; $thisfile_bmp_header_raw['gamma_red'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['gamma_green'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['gamma_blue'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header['ciexyz_red'] = GetId3_Lib_Helper::FixedPoint2_30(strrev($thisfile_bmp_header_raw['ciexyz_red'])); $thisfile_bmp_header['ciexyz_green'] = GetId3_Lib_Helper::FixedPoint2_30(strrev($thisfile_bmp_header_raw['ciexyz_green'])); $thisfile_bmp_header['ciexyz_blue'] = GetId3_Lib_Helper::FixedPoint2_30(strrev($thisfile_bmp_header_raw['ciexyz_blue'])); } if ($thisfile_bmp['type_version'] >= 5) { $BMPheader .= fread($this->getid3->fp, 16); // BITMAPV5HEADER - [16 bytes] - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_7c36.asp // Win98+, Win2000+ // DWORD bV5Intent; // DWORD bV5ProfileData; // DWORD bV5ProfileSize; // DWORD bV5Reserved; $thisfile_bmp_header_raw['intent'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['profile_data_offset'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['profile_data_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; $thisfile_bmp_header_raw['reserved3'] = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPheader, $offset, 4)); $offset += 4; } } else { $info['error'][] = 'Unknown BMP format in header.'; return false; } if ($this->ExtractPalette || $this->ExtractData) { $PaletteEntries = 0; if ($thisfile_bmp_header_raw['bits_per_pixel'] < 16) { $PaletteEntries = pow(2, $thisfile_bmp_header_raw['bits_per_pixel']); } elseif (isset($thisfile_bmp_header_raw['colors_used']) && $thisfile_bmp_header_raw['colors_used'] > 0 && $thisfile_bmp_header_raw['colors_used'] <= 256) { $PaletteEntries = $thisfile_bmp_header_raw['colors_used']; } if ($PaletteEntries > 0) { $BMPpalette = fread($this->getid3->fp, 4 * $PaletteEntries); $paletteoffset = 0; for ($i = 0; $i < $PaletteEntries; $i++) { // RGBQUAD - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_5f8y.asp // BYTE rgbBlue; // BYTE rgbGreen; // BYTE rgbRed; // BYTE rgbReserved; $blue = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpalette, $paletteoffset++, 1)); $green = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpalette, $paletteoffset++, 1)); $red = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpalette, $paletteoffset++, 1)); if ($thisfile_bmp['type_os'] == 'OS/2' && $thisfile_bmp['type_version'] == 1) { // no padding byte } else { $paletteoffset++; // padding byte } $thisfile_bmp['palette'][$i] = $red << 16 | $green << 8 | $blue; } } } if ($this->ExtractData) { fseek($this->getid3->fp, $thisfile_bmp_header_raw['data_offset'], SEEK_SET); $RowByteLength = ceil($thisfile_bmp_header_raw['width'] * ($thisfile_bmp_header_raw['bits_per_pixel'] / 8) / 4) * 4; // round up to nearest DWORD boundry $BMPpixelData = fread($this->getid3->fp, $thisfile_bmp_header_raw['height'] * $RowByteLength); $pixeldataoffset = 0; $thisfile_bmp_header_raw['compression'] = isset($thisfile_bmp_header_raw['compression']) ? $thisfile_bmp_header_raw['compression'] : ''; switch ($thisfile_bmp_header_raw['compression']) { case 0: // BI_RGB switch ($thisfile_bmp_header_raw['bits_per_pixel']) { case 1: for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; $row--) { for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col = $col) { $paletteindexbyte = ord($BMPpixelData[$pixeldataoffset++]); for ($i = 7; $i >= 0; $i--) { $paletteindex = ($paletteindexbyte & 0x1 << $i) >> $i; $thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex]; $col++; } } while ($pixeldataoffset % 4 != 0) { // lines are padded to nearest DWORD $pixeldataoffset++; } } break; case 4: for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; $row--) { for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col = $col) { $paletteindexbyte = ord($BMPpixelData[$pixeldataoffset++]); for ($i = 1; $i >= 0; $i--) { $paletteindex = ($paletteindexbyte & 0xf << 4 * $i) >> 4 * $i; $thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex]; $col++; } } while ($pixeldataoffset % 4 != 0) { // lines are padded to nearest DWORD $pixeldataoffset++; } } break; case 8: for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; $row--) { for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col++) { $paletteindex = ord($BMPpixelData[$pixeldataoffset++]); $thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex]; } while ($pixeldataoffset % 4 != 0) { // lines are padded to nearest DWORD $pixeldataoffset++; } } break; case 24: for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; $row--) { for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col++) { $thisfile_bmp['data'][$row][$col] = ord($BMPpixelData[$pixeldataoffset + 2]) << 16 | ord($BMPpixelData[$pixeldataoffset + 1]) << 8 | ord($BMPpixelData[$pixeldataoffset]); $pixeldataoffset += 3; } while ($pixeldataoffset % 4 != 0) { // lines are padded to nearest DWORD $pixeldataoffset++; } } break; case 32: for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; $row--) { for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col++) { $thisfile_bmp['data'][$row][$col] = ord($BMPpixelData[$pixeldataoffset + 3]) << 24 | ord($BMPpixelData[$pixeldataoffset + 2]) << 16 | ord($BMPpixelData[$pixeldataoffset + 1]) << 8 | ord($BMPpixelData[$pixeldataoffset]); $pixeldataoffset += 4; } while ($pixeldataoffset % 4 != 0) { // lines are padded to nearest DWORD $pixeldataoffset++; } } break; case 16: // ? break; default: $info['error'][] = 'Unknown bits-per-pixel value (' . $thisfile_bmp_header_raw['bits_per_pixel'] . ') - cannot read pixel data'; break; } break; case 1: // BI_RLE8 - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_6x0u.asp switch ($thisfile_bmp_header_raw['bits_per_pixel']) { case 8: $pixelcounter = 0; while ($pixeldataoffset < strlen($BMPpixelData)) { $firstbyte = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1)); $secondbyte = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1)); if ($firstbyte == 0) { // escaped/absolute mode - the first byte of the pair can be set to zero to // indicate an escape character that denotes the end of a line, the end of // a bitmap, or a delta, depending on the value of the second byte. switch ($secondbyte) { case 0: // end of line // no need for special processing, just ignore break; case 1: // end of bitmap $pixeldataoffset = strlen($BMPpixelData); // force to exit loop just in case break; case 2: // delta - The 2 bytes following the escape contain unsigned values // indicating the horizontal and vertical offsets of the next pixel // from the current position. $colincrement = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1)); $rowincrement = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1)); $col = $pixelcounter % $thisfile_bmp_header_raw['width'] + $colincrement; $row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width'] - $rowincrement; $pixelcounter = $row * $thisfile_bmp_header_raw['width'] + $col; break; default: // In absolute mode, the first byte is zero and the second byte is a // value in the range 03H through FFH. The second byte represents the // number of bytes that follow, each of which contains the color index // of a single pixel. Each run must be aligned on a word boundary. for ($i = 0; $i < $secondbyte; $i++) { $paletteindex = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1)); $col = $pixelcounter % $thisfile_bmp_header_raw['width']; $row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width']; $thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex]; $pixelcounter++; } while ($pixeldataoffset % 2 != 0) { // Each run must be aligned on a word boundary. $pixeldataoffset++; } break; } } else { // encoded mode - the first byte specifies the number of consecutive pixels // to be drawn using the color index contained in the second byte. for ($i = 0; $i < $firstbyte; $i++) { $col = $pixelcounter % $thisfile_bmp_header_raw['width']; $row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width']; $thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$secondbyte]; $pixelcounter++; } } } break; default: $info['error'][] = 'Unknown bits-per-pixel value (' . $thisfile_bmp_header_raw['bits_per_pixel'] . ') - cannot read pixel data'; break; } break; case 2: // BI_RLE4 - http://msdn.microsoft.com/library/en-us/gdi/bitmaps_6x0u.asp switch ($thisfile_bmp_header_raw['bits_per_pixel']) { case 4: $pixelcounter = 0; while ($pixeldataoffset < strlen($BMPpixelData)) { $firstbyte = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1)); $secondbyte = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1)); if ($firstbyte == 0) { // escaped/absolute mode - the first byte of the pair can be set to zero to // indicate an escape character that denotes the end of a line, the end of // a bitmap, or a delta, depending on the value of the second byte. switch ($secondbyte) { case 0: // end of line // no need for special processing, just ignore break; case 1: // end of bitmap $pixeldataoffset = strlen($BMPpixelData); // force to exit loop just in case break; case 2: // delta - The 2 bytes following the escape contain unsigned values // indicating the horizontal and vertical offsets of the next pixel // from the current position. $colincrement = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1)); $rowincrement = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1)); $col = $pixelcounter % $thisfile_bmp_header_raw['width'] + $colincrement; $row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width'] - $rowincrement; $pixelcounter = $row * $thisfile_bmp_header_raw['width'] + $col; break; default: // In absolute mode, the first byte is zero. The second byte contains the number // of color indexes that follow. Subsequent bytes contain color indexes in their // high- and low-order 4 bits, one color index for each pixel. In absolute mode, // each run must be aligned on a word boundary. unset($paletteindexes); for ($i = 0; $i < ceil($secondbyte / 2); $i++) { $paletteindexbyte = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset++, 1)); $paletteindexes[] = ($paletteindexbyte & 0xf0) >> 4; $paletteindexes[] = $paletteindexbyte & 0xf; } while ($pixeldataoffset % 2 != 0) { // Each run must be aligned on a word boundary. $pixeldataoffset++; } foreach ($paletteindexes as $paletteindex) { $col = $pixelcounter % $thisfile_bmp_header_raw['width']; $row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width']; $thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindex]; $pixelcounter++; } break; } } else { // encoded mode - the first byte of the pair contains the number of pixels to be // drawn using the color indexes in the second byte. The second byte contains two // color indexes, one in its high-order 4 bits and one in its low-order 4 bits. // The first of the pixels is drawn using the color specified by the high-order // 4 bits, the second is drawn using the color in the low-order 4 bits, the third // is drawn using the color in the high-order 4 bits, and so on, until all the // pixels specified by the first byte have been drawn. $paletteindexes[0] = ($secondbyte & 0xf0) >> 4; $paletteindexes[1] = $secondbyte & 0xf; for ($i = 0; $i < $firstbyte; $i++) { $col = $pixelcounter % $thisfile_bmp_header_raw['width']; $row = $thisfile_bmp_header_raw['height'] - 1 - ($pixelcounter - $col) / $thisfile_bmp_header_raw['width']; $thisfile_bmp['data'][$row][$col] = $thisfile_bmp['palette'][$paletteindexes[$i % 2]]; $pixelcounter++; } } } break; default: $info['error'][] = 'Unknown bits-per-pixel value (' . $thisfile_bmp_header_raw['bits_per_pixel'] . ') - cannot read pixel data'; break; } break; case 3: // BI_BITFIELDS switch ($thisfile_bmp_header_raw['bits_per_pixel']) { case 16: case 32: $redshift = 0; $greenshift = 0; $blueshift = 0; while (($thisfile_bmp_header_raw['red_mask'] >> $redshift & 0x1) == 0) { $redshift++; } while (($thisfile_bmp_header_raw['green_mask'] >> $greenshift & 0x1) == 0) { $greenshift++; } while (($thisfile_bmp_header_raw['blue_mask'] >> $blueshift & 0x1) == 0) { $blueshift++; } for ($row = $thisfile_bmp_header_raw['height'] - 1; $row >= 0; $row--) { for ($col = 0; $col < $thisfile_bmp_header_raw['width']; $col++) { $pixelvalue = GetId3_Lib_Helper::LittleEndian2Int(substr($BMPpixelData, $pixeldataoffset, $thisfile_bmp_header_raw['bits_per_pixel'] / 8)); $pixeldataoffset += $thisfile_bmp_header_raw['bits_per_pixel'] / 8; $red = intval(round((($pixelvalue & $thisfile_bmp_header_raw['red_mask']) >> $redshift) / ($thisfile_bmp_header_raw['red_mask'] >> $redshift) * 255)); $green = intval(round((($pixelvalue & $thisfile_bmp_header_raw['green_mask']) >> $greenshift) / ($thisfile_bmp_header_raw['green_mask'] >> $greenshift) * 255)); $blue = intval(round((($pixelvalue & $thisfile_bmp_header_raw['blue_mask']) >> $blueshift) / ($thisfile_bmp_header_raw['blue_mask'] >> $blueshift) * 255)); $thisfile_bmp['data'][$row][$col] = $red << 16 | $green << 8 | $blue; } while ($pixeldataoffset % 4 != 0) { // lines are padded to nearest DWORD $pixeldataoffset++; } } break; default: $info['error'][] = 'Unknown bits-per-pixel value (' . $thisfile_bmp_header_raw['bits_per_pixel'] . ') - cannot read pixel data'; break; } break; default: // unhandled compression type $info['error'][] = 'Unknown/unhandled compression type value (' . $thisfile_bmp_header_raw['compression'] . ') - cannot decompress pixel data'; break; } } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; $info['fileformat'] = 'tta'; $info['audio']['dataformat'] = 'tta'; $info['audio']['lossless'] = true; $info['audio']['bitrate_mode'] = 'vbr'; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $ttaheader = fread($this->getid3->fp, 26); $info['tta']['magic'] = substr($ttaheader, 0, 3); $magic = 'TTA'; if ($info['tta']['magic'] != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($info['tta']['magic']) . '"'; unset($info['fileformat']); unset($info['audio']); unset($info['tta']); return false; } switch ($ttaheader[3]) { case "": // TTA v1.x // TTA v1.x case "": // TTA v1.x // TTA v1.x case "": // TTA v1.x // "It was the demo-version of the TTA encoder. There is no released format with such header. TTA encoder v1 is not supported about a year." $info['tta']['major_version'] = 1; $info['avdataoffset'] += 16; $info['tta']['compression_level'] = ord($ttaheader[3]); $info['tta']['channels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 4, 2)); $info['tta']['bits_per_sample'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 6, 2)); $info['tta']['sample_rate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 8, 4)); $info['tta']['samples_per_channel'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 12, 4)); $info['audio']['encoder_options'] = '-e' . $info['tta']['compression_level']; $info['playtime_seconds'] = $info['tta']['samples_per_channel'] / $info['tta']['sample_rate']; break; case '2': // TTA v2.x // "I have hurried to release the TTA 2.0 encoder. Format documentation is removed from our site. This format still in development. Please wait the TTA2 format, encoder v4." $info['tta']['major_version'] = 2; $info['avdataoffset'] += 20; $info['tta']['compression_level'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 4, 2)); $info['tta']['audio_format'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 6, 2)); $info['tta']['channels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 8, 2)); $info['tta']['bits_per_sample'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 10, 2)); $info['tta']['sample_rate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 12, 4)); $info['tta']['data_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 16, 4)); $info['audio']['encoder_options'] = '-e' . $info['tta']['compression_level']; $info['playtime_seconds'] = $info['tta']['data_length'] / $info['tta']['sample_rate']; break; case '1': // TTA v3.x // "This is a first stable release of the TTA format. It will be supported by the encoders v3 or higher." $info['tta']['major_version'] = 3; $info['avdataoffset'] += 26; $info['tta']['audio_format'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 4, 2)); // GetId3_riff::RIFFwFormatTagLookup() $info['tta']['channels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 6, 2)); $info['tta']['bits_per_sample'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 8, 2)); $info['tta']['sample_rate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 10, 4)); $info['tta']['data_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 14, 4)); $info['tta']['crc32_footer'] = substr($ttaheader, 18, 4); $info['tta']['seek_point'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ttaheader, 22, 4)); $info['playtime_seconds'] = $info['tta']['data_length'] / $info['tta']['sample_rate']; break; default: $info['error'][] = 'This version of GetId3() [' . $this->getid3->version() . '] only knows how to handle TTA v1 and v2 - it may not work correctly with this file which appears to be TTA v' . $ttaheader[3]; return false; break; } $info['audio']['encoder'] = 'TTA v' . $info['tta']['major_version']; $info['audio']['bits_per_sample'] = $info['tta']['bits_per_sample']; $info['audio']['sample_rate'] = $info['tta']['sample_rate']; $info['audio']['channels'] = $info['tta']['channels']; $info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; // Shortcuts $thisfile_audio =& $info['audio']; $thisfile_video =& $info['video']; $info['asf'] = array(); $thisfile_asf =& $info['asf']; $thisfile_asf['comments'] = array(); $thisfile_asf_comments =& $thisfile_asf['comments']; $thisfile_asf['header_object'] = array(); $thisfile_asf_headerobject =& $thisfile_asf['header_object']; // ASF structure: // * Header Object [required] // * File Properties Object [required] (global file attributes) // * Stream Properties Object [required] (defines media stream & characteristics) // * Header Extension Object [required] (additional functionality) // * Content Description Object (bibliographic information) // * Script Command Object (commands for during playback) // * Marker Object (named jumped points within the file) // * Data Object [required] // * Data Packets // * Index Object // Header Object: (mandatory, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for header object - GETID3_ASF_Header_Object // Object Size QWORD 64 // size of header object, including 30 bytes of Header Object header // Number of Header Objects DWORD 32 // number of objects in header object // Reserved1 BYTE 8 // hardcoded: 0x01 // Reserved2 BYTE 8 // hardcoded: 0x02 $info['fileformat'] = 'asf'; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $HeaderObjectData = fread($this->getid3->fp, 30); $thisfile_asf_headerobject['objectid'] = substr($HeaderObjectData, 0, 16); $thisfile_asf_headerobject['objectid_guid'] = self::BytestringToGUID($thisfile_asf_headerobject['objectid']); if ($thisfile_asf_headerobject['objectid'] != self::$GETID3_ASF_Header_Object) { $info['warning'][] = 'ASF header GUID {' . self::BytestringToGUID($thisfile_asf_headerobject['objectid']) . '} does not match expected "GETID3_ASF_Header_Object" GUID {' . self::BytestringToGUID(self::$GETID3_ASF_Header_Object) . '}'; unset($info['fileformat']); unset($info['asf']); return false; } $thisfile_asf_headerobject['objectsize'] = GetId3_Lib_Helper::LittleEndian2Int(substr($HeaderObjectData, 16, 8)); $thisfile_asf_headerobject['headerobjects'] = GetId3_Lib_Helper::LittleEndian2Int(substr($HeaderObjectData, 24, 4)); $thisfile_asf_headerobject['reserved1'] = GetId3_Lib_Helper::LittleEndian2Int(substr($HeaderObjectData, 28, 1)); $thisfile_asf_headerobject['reserved2'] = GetId3_Lib_Helper::LittleEndian2Int(substr($HeaderObjectData, 29, 1)); $NextObjectOffset = ftell($this->getid3->fp); $ASFHeaderData = fread($this->getid3->fp, $thisfile_asf_headerobject['objectsize'] - 30); $offset = 0; for ($HeaderObjectsCounter = 0; $HeaderObjectsCounter < $thisfile_asf_headerobject['headerobjects']; $HeaderObjectsCounter++) { $NextObjectGUID = substr($ASFHeaderData, $offset, 16); $offset += 16; $NextObjectGUIDtext = self::BytestringToGUID($NextObjectGUID); $NextObjectSize = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 8)); $offset += 8; switch ($NextObjectGUID) { case self::$GETID3_ASF_File_Properties_Object: // File Properties Object: (mandatory, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for file properties object - GETID3_ASF_File_Properties_Object // Object Size QWORD 64 // size of file properties object, including 104 bytes of File Properties Object header // File ID GUID 128 // unique ID - identical to File ID in Data Object // File Size QWORD 64 // entire file in bytes. Invalid if Broadcast Flag == 1 // Creation Date QWORD 64 // date & time of file creation. Maybe invalid if Broadcast Flag == 1 // Data Packets Count QWORD 64 // number of data packets in Data Object. Invalid if Broadcast Flag == 1 // Play Duration QWORD 64 // playtime, in 100-nanosecond units. Invalid if Broadcast Flag == 1 // Send Duration QWORD 64 // time needed to send file, in 100-nanosecond units. Players can ignore this value. Invalid if Broadcast Flag == 1 // Preroll QWORD 64 // time to buffer data before starting to play file, in 1-millisecond units. If <> 0, PlayDuration and PresentationTime have been offset by this amount // Flags DWORD 32 // // * Broadcast Flag bits 1 (0x01) // file is currently being written, some header values are invalid // * Seekable Flag bits 1 (0x02) // is file seekable // * Reserved bits 30 (0xFFFFFFFC) // reserved - set to zero // Minimum Data Packet Size DWORD 32 // in bytes. should be same as Maximum Data Packet Size. Invalid if Broadcast Flag == 1 // Maximum Data Packet Size DWORD 32 // in bytes. should be same as Minimum Data Packet Size. Invalid if Broadcast Flag == 1 // Maximum Bitrate DWORD 32 // maximum instantaneous bitrate in bits per second for entire file, including all data streams and ASF overhead // shortcut $thisfile_asf['file_properties_object'] = array(); $thisfile_asf_filepropertiesobject =& $thisfile_asf['file_properties_object']; $thisfile_asf_filepropertiesobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_filepropertiesobject['objectid'] = $NextObjectGUID; $thisfile_asf_filepropertiesobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_filepropertiesobject['objectsize'] = $NextObjectSize; $thisfile_asf_filepropertiesobject['fileid'] = substr($ASFHeaderData, $offset, 16); $offset += 16; $thisfile_asf_filepropertiesobject['fileid_guid'] = self::BytestringToGUID($thisfile_asf_filepropertiesobject['fileid']); $thisfile_asf_filepropertiesobject['filesize'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 8)); $offset += 8; $thisfile_asf_filepropertiesobject['creation_date'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 8)); $thisfile_asf_filepropertiesobject['creation_date_unix'] = self::FILETIMEtoUNIXtime($thisfile_asf_filepropertiesobject['creation_date']); $offset += 8; $thisfile_asf_filepropertiesobject['data_packets'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 8)); $offset += 8; $thisfile_asf_filepropertiesobject['play_duration'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 8)); $offset += 8; $thisfile_asf_filepropertiesobject['send_duration'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 8)); $offset += 8; $thisfile_asf_filepropertiesobject['preroll'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 8)); $offset += 8; $thisfile_asf_filepropertiesobject['flags_raw'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $thisfile_asf_filepropertiesobject['flags']['broadcast'] = (bool) ($thisfile_asf_filepropertiesobject['flags_raw'] & 0x1); $thisfile_asf_filepropertiesobject['flags']['seekable'] = (bool) ($thisfile_asf_filepropertiesobject['flags_raw'] & 0x2); $thisfile_asf_filepropertiesobject['min_packet_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $thisfile_asf_filepropertiesobject['max_packet_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $thisfile_asf_filepropertiesobject['max_bitrate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; if ($thisfile_asf_filepropertiesobject['flags']['broadcast']) { // broadcast flag is set, some values invalid unset($thisfile_asf_filepropertiesobject['filesize']); unset($thisfile_asf_filepropertiesobject['data_packets']); unset($thisfile_asf_filepropertiesobject['play_duration']); unset($thisfile_asf_filepropertiesobject['send_duration']); unset($thisfile_asf_filepropertiesobject['min_packet_size']); unset($thisfile_asf_filepropertiesobject['max_packet_size']); } else { // broadcast flag NOT set, perform calculations $info['playtime_seconds'] = $thisfile_asf_filepropertiesobject['play_duration'] / 10000000 - $thisfile_asf_filepropertiesobject['preroll'] / 1000; //$info['bitrate'] = $thisfile_asf_filepropertiesobject['max_bitrate']; $info['bitrate'] = (isset($thisfile_asf_filepropertiesobject['filesize']) ? $thisfile_asf_filepropertiesobject['filesize'] : $info['filesize']) * 8 / $info['playtime_seconds']; } break; case self::$GETID3_ASF_Stream_Properties_Object: // Stream Properties Object: (mandatory, one per media stream) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for stream properties object - GETID3_ASF_Stream_Properties_Object // Object Size QWORD 64 // size of stream properties object, including 78 bytes of Stream Properties Object header // Stream Type GUID 128 // GETID3_ASF_Audio_Media, GETID3_ASF_Video_Media or GETID3_ASF_Command_Media // Error Correction Type GUID 128 // GETID3_ASF_Audio_Spread for audio-only streams, GETID3_ASF_No_Error_Correction for other stream types // Time Offset QWORD 64 // 100-nanosecond units. typically zero. added to all timestamps of samples in the stream // Type-Specific Data Length DWORD 32 // number of bytes for Type-Specific Data field // Error Correction Data Length DWORD 32 // number of bytes for Error Correction Data field // Flags WORD 16 // // * Stream Number bits 7 (0x007F) // number of this stream. 1 <= valid <= 127 // * Reserved bits 8 (0x7F80) // reserved - set to zero // * Encrypted Content Flag bits 1 (0x8000) // stream contents encrypted if set // Reserved DWORD 32 // reserved - set to zero // Type-Specific Data BYTESTREAM variable // type-specific format data, depending on value of Stream Type // Error Correction Data BYTESTREAM variable // error-correction-specific format data, depending on value of Error Correct Type // There is one self::$GETID3_ASF_Stream_Properties_Object for each stream (audio, video) but the // stream number isn't known until halfway through decoding the structure, hence it // it is decoded to a temporary variable and then stuck in the appropriate index later $StreamPropertiesObjectData = array(); $StreamPropertiesObjectData['offset'] = $NextObjectOffset + $offset; $StreamPropertiesObjectData['objectid'] = $NextObjectGUID; $StreamPropertiesObjectData['objectid_guid'] = $NextObjectGUIDtext; $StreamPropertiesObjectData['objectsize'] = $NextObjectSize; $StreamPropertiesObjectData['stream_type'] = substr($ASFHeaderData, $offset, 16); $offset += 16; $StreamPropertiesObjectData['stream_type_guid'] = self::BytestringToGUID($StreamPropertiesObjectData['stream_type']); $StreamPropertiesObjectData['error_correct_type'] = substr($ASFHeaderData, $offset, 16); $offset += 16; $StreamPropertiesObjectData['error_correct_guid'] = self::BytestringToGUID($StreamPropertiesObjectData['error_correct_type']); $StreamPropertiesObjectData['time_offset'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 8)); $offset += 8; $StreamPropertiesObjectData['type_data_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $StreamPropertiesObjectData['error_data_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $StreamPropertiesObjectData['flags_raw'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $StreamPropertiesObjectStreamNumber = $StreamPropertiesObjectData['flags_raw'] & 0x7f; $StreamPropertiesObjectData['flags']['encrypted'] = (bool) ($StreamPropertiesObjectData['flags_raw'] & 0x8000); $offset += 4; // reserved - DWORD $StreamPropertiesObjectData['type_specific_data'] = substr($ASFHeaderData, $offset, $StreamPropertiesObjectData['type_data_length']); $offset += $StreamPropertiesObjectData['type_data_length']; $StreamPropertiesObjectData['error_correct_data'] = substr($ASFHeaderData, $offset, $StreamPropertiesObjectData['error_data_length']); $offset += $StreamPropertiesObjectData['error_data_length']; switch ($StreamPropertiesObjectData['stream_type']) { case self::$GETID3_ASF_Audio_Media: $thisfile_audio['dataformat'] = !empty($thisfile_audio['dataformat']) ? $thisfile_audio['dataformat'] : 'asf'; $thisfile_audio['bitrate_mode'] = !empty($thisfile_audio['bitrate_mode']) ? $thisfile_audio['bitrate_mode'] : 'cbr'; $audiodata = GetId3_Module_AudioVideo_Riff::RIFFparseWAVEFORMATex(substr($StreamPropertiesObjectData['type_specific_data'], 0, 16)); unset($audiodata['raw']); $thisfile_audio = GetId3_Lib_Helper::array_merge_noclobber($audiodata, $thisfile_audio); break; case self::$GETID3_ASF_Video_Media: $thisfile_video['dataformat'] = !empty($thisfile_video['dataformat']) ? $thisfile_video['dataformat'] : 'asf'; $thisfile_video['bitrate_mode'] = !empty($thisfile_video['bitrate_mode']) ? $thisfile_video['bitrate_mode'] : 'cbr'; break; case self::$GETID3_ASF_Command_Media: default: // do nothing break; } $thisfile_asf['stream_properties_object'][$StreamPropertiesObjectStreamNumber] = $StreamPropertiesObjectData; unset($StreamPropertiesObjectData); // clear for next stream, if any break; case self::$GETID3_ASF_Header_Extension_Object: // Header Extension Object: (mandatory, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Header Extension object - GETID3_ASF_Header_Extension_Object // Object Size QWORD 64 // size of Header Extension object, including 46 bytes of Header Extension Object header // Reserved Field 1 GUID 128 // hardcoded: GETID3_ASF_Reserved_1 // Reserved Field 2 WORD 16 // hardcoded: 0x00000006 // Header Extension Data Size DWORD 32 // in bytes. valid: 0, or > 24. equals object size minus 46 // Header Extension Data BYTESTREAM variable // array of zero or more extended header objects // shortcut $thisfile_asf['header_extension_object'] = array(); $thisfile_asf_headerextensionobject =& $thisfile_asf['header_extension_object']; $thisfile_asf_headerextensionobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_headerextensionobject['objectid'] = $NextObjectGUID; $thisfile_asf_headerextensionobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_headerextensionobject['objectsize'] = $NextObjectSize; $thisfile_asf_headerextensionobject['reserved_1'] = substr($ASFHeaderData, $offset, 16); $offset += 16; $thisfile_asf_headerextensionobject['reserved_1_guid'] = self::BytestringToGUID($thisfile_asf_headerextensionobject['reserved_1']); if ($thisfile_asf_headerextensionobject['reserved_1'] != self::$GETID3_ASF_Reserved_1) { $info['warning'][] = 'header_extension_object.reserved_1 GUID (' . self::BytestringToGUID($thisfile_asf_headerextensionobject['reserved_1']) . ') does not match expected "GETID3_ASF_Reserved_1" GUID (' . self::BytestringToGUID(self::$GETID3_ASF_Reserved_1) . ')'; //return false; break; } $thisfile_asf_headerextensionobject['reserved_2'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; if ($thisfile_asf_headerextensionobject['reserved_2'] != 6) { $info['warning'][] = 'header_extension_object.reserved_2 (' . GetId3_Lib_Helper::PrintHexBytes($thisfile_asf_headerextensionobject['reserved_2']) . ') does not match expected value of "6"'; //return false; break; } $thisfile_asf_headerextensionobject['extension_data_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $thisfile_asf_headerextensionobject['extension_data'] = substr($ASFHeaderData, $offset, $thisfile_asf_headerextensionobject['extension_data_size']); $unhandled_sections = 0; $thisfile_asf_headerextensionobject['extension_data_parsed'] = $this->ASF_HeaderExtensionObjectDataParse($thisfile_asf_headerextensionobject['extension_data'], $unhandled_sections); if ($unhandled_sections === 0) { unset($thisfile_asf_headerextensionobject['extension_data']); } $offset += $thisfile_asf_headerextensionobject['extension_data_size']; break; case self::$GETID3_ASF_Codec_List_Object: // Codec List Object: (optional, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Codec List object - GETID3_ASF_Codec_List_Object // Object Size QWORD 64 // size of Codec List object, including 44 bytes of Codec List Object header // Reserved GUID 128 // hardcoded: 86D15241-311D-11D0-A3A4-00A0C90348F6 // Codec Entries Count DWORD 32 // number of entries in Codec Entries array // Codec Entries array of: variable // // * Type WORD 16 // 0x0001 = Video Codec, 0x0002 = Audio Codec, 0xFFFF = Unknown Codec // * Codec Name Length WORD 16 // number of Unicode characters stored in the Codec Name field // * Codec Name WCHAR variable // array of Unicode characters - name of codec used to create the content // * Codec Description Length WORD 16 // number of Unicode characters stored in the Codec Description field // * Codec Description WCHAR variable // array of Unicode characters - description of format used to create the content // * Codec Information Length WORD 16 // number of Unicode characters stored in the Codec Information field // * Codec Information BYTESTREAM variable // opaque array of information bytes about the codec used to create the content // shortcut $thisfile_asf['codec_list_object'] = array(); $thisfile_asf_codeclistobject =& $thisfile_asf['codec_list_object']; $thisfile_asf_codeclistobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_codeclistobject['objectid'] = $NextObjectGUID; $thisfile_asf_codeclistobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_codeclistobject['objectsize'] = $NextObjectSize; $thisfile_asf_codeclistobject['reserved'] = substr($ASFHeaderData, $offset, 16); $offset += 16; $thisfile_asf_codeclistobject['reserved_guid'] = self::BytestringToGUID($thisfile_asf_codeclistobject['reserved']); if ($thisfile_asf_codeclistobject['reserved'] != self::GUIDtoBytestring('86D15241-311D-11D0-A3A4-00A0C90348F6')) { $info['warning'][] = 'codec_list_object.reserved GUID {' . self::BytestringToGUID($thisfile_asf_codeclistobject['reserved']) . '} does not match expected "GETID3_ASF_Reserved_1" GUID {86D15241-311D-11D0-A3A4-00A0C90348F6}'; //return false; break; } $thisfile_asf_codeclistobject['codec_entries_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; for ($CodecEntryCounter = 0; $CodecEntryCounter < $thisfile_asf_codeclistobject['codec_entries_count']; $CodecEntryCounter++) { // shortcut $thisfile_asf_codeclistobject['codec_entries'][$CodecEntryCounter] = array(); $thisfile_asf_codeclistobject_codecentries_current =& $thisfile_asf_codeclistobject['codec_entries'][$CodecEntryCounter]; $thisfile_asf_codeclistobject_codecentries_current['type_raw'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_codeclistobject_codecentries_current['type'] = $this->ASFCodecListObjectTypeLookup($thisfile_asf_codeclistobject_codecentries_current['type_raw']); $CodecNameLength = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character $offset += 2; $thisfile_asf_codeclistobject_codecentries_current['name'] = substr($ASFHeaderData, $offset, $CodecNameLength); $offset += $CodecNameLength; $CodecDescriptionLength = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character $offset += 2; $thisfile_asf_codeclistobject_codecentries_current['description'] = substr($ASFHeaderData, $offset, $CodecDescriptionLength); $offset += $CodecDescriptionLength; $CodecInformationLength = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_codeclistobject_codecentries_current['information'] = substr($ASFHeaderData, $offset, $CodecInformationLength); $offset += $CodecInformationLength; if ($thisfile_asf_codeclistobject_codecentries_current['type_raw'] == 2) { // audio codec if (strpos($thisfile_asf_codeclistobject_codecentries_current['description'], ',') === false) { $info['warning'][] = '[asf][codec_list_object][codec_entries][' . $CodecEntryCounter . '][description] expected to contain comma-seperated list of parameters: "' . $thisfile_asf_codeclistobject_codecentries_current['description'] . '"'; } else { list($AudioCodecBitrate, $AudioCodecFrequency, $AudioCodecChannels) = explode(',', self::TrimConvert($thisfile_asf_codeclistobject_codecentries_current['description'])); $thisfile_audio['codec'] = self::TrimConvert($thisfile_asf_codeclistobject_codecentries_current['name']); if (!isset($thisfile_audio['bitrate']) && strstr($AudioCodecBitrate, 'kbps')) { $thisfile_audio['bitrate'] = (int) (trim(str_replace('kbps', '', $AudioCodecBitrate)) * 1000); } //if (!isset($thisfile_video['bitrate']) && isset($thisfile_audio['bitrate']) && isset($thisfile_asf['file_properties_object']['max_bitrate']) && ($thisfile_asf_codeclistobject['codec_entries_count'] > 1)) { if (empty($thisfile_video['bitrate']) && !empty($thisfile_audio['bitrate']) && !empty($info['bitrate'])) { //$thisfile_video['bitrate'] = $thisfile_asf['file_properties_object']['max_bitrate'] - $thisfile_audio['bitrate']; $thisfile_video['bitrate'] = $info['bitrate'] - $thisfile_audio['bitrate']; } $AudioCodecFrequency = (int) trim(str_replace('kHz', '', $AudioCodecFrequency)); switch ($AudioCodecFrequency) { case 8: case 8000: $thisfile_audio['sample_rate'] = 8000; break; case 11: case 11025: $thisfile_audio['sample_rate'] = 11025; break; case 12: case 12000: $thisfile_audio['sample_rate'] = 12000; break; case 16: case 16000: $thisfile_audio['sample_rate'] = 16000; break; case 22: case 22050: $thisfile_audio['sample_rate'] = 22050; break; case 24: case 24000: $thisfile_audio['sample_rate'] = 24000; break; case 32: case 32000: $thisfile_audio['sample_rate'] = 32000; break; case 44: case 441000: $thisfile_audio['sample_rate'] = 44100; break; case 48: case 48000: $thisfile_audio['sample_rate'] = 48000; break; default: $info['warning'][] = 'unknown frequency: "' . $AudioCodecFrequency . '" (' . self::TrimConvert($thisfile_asf_codeclistobject_codecentries_current['description']) . ')'; break; } if (!isset($thisfile_audio['channels'])) { if (strstr($AudioCodecChannels, 'stereo')) { $thisfile_audio['channels'] = 2; } elseif (strstr($AudioCodecChannels, 'mono')) { $thisfile_audio['channels'] = 1; } } } } } break; case self::$GETID3_ASF_Script_Command_Object: // Script Command Object: (optional, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Script Command object - GETID3_ASF_Script_Command_Object // Object Size QWORD 64 // size of Script Command object, including 44 bytes of Script Command Object header // Reserved GUID 128 // hardcoded: 4B1ACBE3-100B-11D0-A39B-00A0C90348F6 // Commands Count WORD 16 // number of Commands structures in the Script Commands Objects // Command Types Count WORD 16 // number of Command Types structures in the Script Commands Objects // Command Types array of: variable // // * Command Type Name Length WORD 16 // number of Unicode characters for Command Type Name // * Command Type Name WCHAR variable // array of Unicode characters - name of a type of command // Commands array of: variable // // * Presentation Time DWORD 32 // presentation time of that command, in milliseconds // * Type Index WORD 16 // type of this command, as a zero-based index into the array of Command Types of this object // * Command Name Length WORD 16 // number of Unicode characters for Command Name // * Command Name WCHAR variable // array of Unicode characters - name of this command // shortcut $thisfile_asf['script_command_object'] = array(); $thisfile_asf_scriptcommandobject =& $thisfile_asf['script_command_object']; $thisfile_asf_scriptcommandobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_scriptcommandobject['objectid'] = $NextObjectGUID; $thisfile_asf_scriptcommandobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_scriptcommandobject['objectsize'] = $NextObjectSize; $thisfile_asf_scriptcommandobject['reserved'] = substr($ASFHeaderData, $offset, 16); $offset += 16; $thisfile_asf_scriptcommandobject['reserved_guid'] = self::BytestringToGUID($thisfile_asf_scriptcommandobject['reserved']); if ($thisfile_asf_scriptcommandobject['reserved'] != self::GUIDtoBytestring('4B1ACBE3-100B-11D0-A39B-00A0C90348F6')) { $info['warning'][] = 'script_command_object.reserved GUID {' . self::BytestringToGUID($thisfile_asf_scriptcommandobject['reserved']) . '} does not match expected "GETID3_ASF_Reserved_1" GUID {4B1ACBE3-100B-11D0-A39B-00A0C90348F6}'; //return false; break; } $thisfile_asf_scriptcommandobject['commands_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_scriptcommandobject['command_types_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; for ($CommandTypesCounter = 0; $CommandTypesCounter < $thisfile_asf_scriptcommandobject['command_types_count']; $CommandTypesCounter++) { $CommandTypeNameLength = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character $offset += 2; $thisfile_asf_scriptcommandobject['command_types'][$CommandTypesCounter]['name'] = substr($ASFHeaderData, $offset, $CommandTypeNameLength); $offset += $CommandTypeNameLength; } for ($CommandsCounter = 0; $CommandsCounter < $thisfile_asf_scriptcommandobject['commands_count']; $CommandsCounter++) { $thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['presentation_time'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['type_index'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $CommandTypeNameLength = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)) * 2; // 2 bytes per character $offset += 2; $thisfile_asf_scriptcommandobject['commands'][$CommandsCounter]['name'] = substr($ASFHeaderData, $offset, $CommandTypeNameLength); $offset += $CommandTypeNameLength; } break; case self::$GETID3_ASF_Marker_Object: // Marker Object: (optional, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Marker object - GETID3_ASF_Marker_Object // Object Size QWORD 64 // size of Marker object, including 48 bytes of Marker Object header // Reserved GUID 128 // hardcoded: 4CFEDB20-75F6-11CF-9C0F-00A0C90349CB // Markers Count DWORD 32 // number of Marker structures in Marker Object // Reserved WORD 16 // hardcoded: 0x0000 // Name Length WORD 16 // number of bytes in the Name field // Name WCHAR variable // name of the Marker Object // Markers array of: variable // // * Offset QWORD 64 // byte offset into Data Object // * Presentation Time QWORD 64 // in 100-nanosecond units // * Entry Length WORD 16 // length in bytes of (Send Time + Flags + Marker Description Length + Marker Description + Padding) // * Send Time DWORD 32 // in milliseconds // * Flags DWORD 32 // hardcoded: 0x00000000 // * Marker Description Length DWORD 32 // number of bytes in Marker Description field // * Marker Description WCHAR variable // array of Unicode characters - description of marker entry // * Padding BYTESTREAM variable // optional padding bytes // shortcut $thisfile_asf['marker_object'] = array(); $thisfile_asf_markerobject =& $thisfile_asf['marker_object']; $thisfile_asf_markerobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_markerobject['objectid'] = $NextObjectGUID; $thisfile_asf_markerobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_markerobject['objectsize'] = $NextObjectSize; $thisfile_asf_markerobject['reserved'] = substr($ASFHeaderData, $offset, 16); $offset += 16; $thisfile_asf_markerobject['reserved_guid'] = self::BytestringToGUID($thisfile_asf_markerobject['reserved']); if ($thisfile_asf_markerobject['reserved'] != self::GUIDtoBytestring('4CFEDB20-75F6-11CF-9C0F-00A0C90349CB')) { $info['warning'][] = 'marker_object.reserved GUID {' . self::BytestringToGUID($thisfile_asf_markerobject['reserved_1']) . '} does not match expected "GETID3_ASF_Reserved_1" GUID {4CFEDB20-75F6-11CF-9C0F-00A0C90349CB}'; break; } $thisfile_asf_markerobject['markers_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $thisfile_asf_markerobject['reserved_2'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; if ($thisfile_asf_markerobject['reserved_2'] != 0) { $info['warning'][] = 'marker_object.reserved_2 (' . GetId3_Lib_Helper::PrintHexBytes($thisfile_asf_markerobject['reserved_2']) . ') does not match expected value of "0"'; break; } $thisfile_asf_markerobject['name_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_markerobject['name'] = substr($ASFHeaderData, $offset, $thisfile_asf_markerobject['name_length']); $offset += $thisfile_asf_markerobject['name_length']; for ($MarkersCounter = 0; $MarkersCounter < $thisfile_asf_markerobject['markers_count']; $MarkersCounter++) { $thisfile_asf_markerobject['markers'][$MarkersCounter]['offset'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 8)); $offset += 8; $thisfile_asf_markerobject['markers'][$MarkersCounter]['presentation_time'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 8)); $offset += 8; $thisfile_asf_markerobject['markers'][$MarkersCounter]['entry_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_markerobject['markers'][$MarkersCounter]['send_time'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $thisfile_asf_markerobject['markers'][$MarkersCounter]['flags'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description'] = substr($ASFHeaderData, $offset, $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length']); $offset += $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length']; $PaddingLength = $thisfile_asf_markerobject['markers'][$MarkersCounter]['entry_length'] - 4 - 4 - 4 - $thisfile_asf_markerobject['markers'][$MarkersCounter]['marker_description_length']; if ($PaddingLength > 0) { $thisfile_asf_markerobject['markers'][$MarkersCounter]['padding'] = substr($ASFHeaderData, $offset, $PaddingLength); $offset += $PaddingLength; } } break; case self::$GETID3_ASF_Bitrate_Mutual_Exclusion_Object: // Bitrate Mutual Exclusion Object: (optional) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Bitrate Mutual Exclusion object - GETID3_ASF_Bitrate_Mutual_Exclusion_Object // Object Size QWORD 64 // size of Bitrate Mutual Exclusion object, including 42 bytes of Bitrate Mutual Exclusion Object header // Exlusion Type GUID 128 // nature of mutual exclusion relationship. one of: (GETID3_ASF_Mutex_Bitrate, GETID3_ASF_Mutex_Unknown) // Stream Numbers Count WORD 16 // number of video streams // Stream Numbers WORD variable // array of mutually exclusive video stream numbers. 1 <= valid <= 127 // shortcut $thisfile_asf['bitrate_mutual_exclusion_object'] = array(); $thisfile_asf_bitratemutualexclusionobject =& $thisfile_asf['bitrate_mutual_exclusion_object']; $thisfile_asf_bitratemutualexclusionobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_bitratemutualexclusionobject['objectid'] = $NextObjectGUID; $thisfile_asf_bitratemutualexclusionobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_bitratemutualexclusionobject['objectsize'] = $NextObjectSize; $thisfile_asf_bitratemutualexclusionobject['reserved'] = substr($ASFHeaderData, $offset, 16); $thisfile_asf_bitratemutualexclusionobject['reserved_guid'] = self::BytestringToGUID($thisfile_asf_bitratemutualexclusionobject['reserved']); $offset += 16; if ($thisfile_asf_bitratemutualexclusionobject['reserved'] != self::$GETID3_ASF_Mutex_Bitrate && $thisfile_asf_bitratemutualexclusionobject['reserved'] != self::$GETID3_ASF_Mutex_Unknown) { $info['warning'][] = 'bitrate_mutual_exclusion_object.reserved GUID {' . self::BytestringToGUID($thisfile_asf_bitratemutualexclusionobject['reserved']) . '} does not match expected "GETID3_ASF_Mutex_Bitrate" GUID {' . self::BytestringToGUID(self::$GETID3_ASF_Mutex_Bitrate) . '} or "GETID3_ASF_Mutex_Unknown" GUID {' . self::BytestringToGUID(self::$GETID3_ASF_Mutex_Unknown) . '}'; //return false; break; } $thisfile_asf_bitratemutualexclusionobject['stream_numbers_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; for ($StreamNumberCounter = 0; $StreamNumberCounter < $thisfile_asf_bitratemutualexclusionobject['stream_numbers_count']; $StreamNumberCounter++) { $thisfile_asf_bitratemutualexclusionobject['stream_numbers'][$StreamNumberCounter] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; } break; case self::$GETID3_ASF_Error_Correction_Object: // Error Correction Object: (optional, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Error Correction object - GETID3_ASF_Error_Correction_Object // Object Size QWORD 64 // size of Error Correction object, including 44 bytes of Error Correction Object header // Error Correction Type GUID 128 // type of error correction. one of: (GETID3_ASF_No_Error_Correction, GETID3_ASF_Audio_Spread) // Error Correction Data Length DWORD 32 // number of bytes in Error Correction Data field // Error Correction Data BYTESTREAM variable // structure depends on value of Error Correction Type field // shortcut $thisfile_asf['error_correction_object'] = array(); $thisfile_asf_errorcorrectionobject =& $thisfile_asf['error_correction_object']; $thisfile_asf_errorcorrectionobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_errorcorrectionobject['objectid'] = $NextObjectGUID; $thisfile_asf_errorcorrectionobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_errorcorrectionobject['objectsize'] = $NextObjectSize; $thisfile_asf_errorcorrectionobject['error_correction_type'] = substr($ASFHeaderData, $offset, 16); $offset += 16; $thisfile_asf_errorcorrectionobject['error_correction_guid'] = self::BytestringToGUID($thisfile_asf_errorcorrectionobject['error_correction_type']); $thisfile_asf_errorcorrectionobject['error_correction_data_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; switch ($thisfile_asf_errorcorrectionobject['error_correction_type']) { case self::$GETID3_ASF_No_Error_Correction: // should be no data, but just in case there is, skip to the end of the field $offset += $thisfile_asf_errorcorrectionobject['error_correction_data_length']; break; case self::$GETID3_ASF_Audio_Spread: // Field Name Field Type Size (bits) // Span BYTE 8 // number of packets over which audio will be spread. // Virtual Packet Length WORD 16 // size of largest audio payload found in audio stream // Virtual Chunk Length WORD 16 // size of largest audio payload found in audio stream // Silence Data Length WORD 16 // number of bytes in Silence Data field // Silence Data BYTESTREAM variable // hardcoded: 0x00 * (Silence Data Length) bytes $thisfile_asf_errorcorrectionobject['span'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 1)); $offset += 1; $thisfile_asf_errorcorrectionobject['virtual_packet_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_errorcorrectionobject['virtual_chunk_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_errorcorrectionobject['silence_data_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_errorcorrectionobject['silence_data'] = substr($ASFHeaderData, $offset, $thisfile_asf_errorcorrectionobject['silence_data_length']); $offset += $thisfile_asf_errorcorrectionobject['silence_data_length']; break; default: $info['warning'][] = 'error_correction_object.error_correction_type GUID {' . self::BytestringToGUID($thisfile_asf_errorcorrectionobject['reserved']) . '} does not match expected "GETID3_ASF_No_Error_Correction" GUID {' . self::BytestringToGUID(self::$GETID3_ASF_No_Error_Correction) . '} or "GETID3_ASF_Audio_Spread" GUID {' . self::BytestringToGUID(self::$GETID3_ASF_Audio_Spread) . '}'; //return false; break; } break; case self::$GETID3_ASF_Content_Description_Object: // Content Description Object: (optional, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Content Description object - GETID3_ASF_Content_Description_Object // Object Size QWORD 64 // size of Content Description object, including 34 bytes of Content Description Object header // Title Length WORD 16 // number of bytes in Title field // Author Length WORD 16 // number of bytes in Author field // Copyright Length WORD 16 // number of bytes in Copyright field // Description Length WORD 16 // number of bytes in Description field // Rating Length WORD 16 // number of bytes in Rating field // Title WCHAR 16 // array of Unicode characters - Title // Author WCHAR 16 // array of Unicode characters - Author // Copyright WCHAR 16 // array of Unicode characters - Copyright // Description WCHAR 16 // array of Unicode characters - Description // Rating WCHAR 16 // array of Unicode characters - Rating // shortcut $thisfile_asf['content_description_object'] = array(); $thisfile_asf_contentdescriptionobject =& $thisfile_asf['content_description_object']; $thisfile_asf_contentdescriptionobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_contentdescriptionobject['objectid'] = $NextObjectGUID; $thisfile_asf_contentdescriptionobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_contentdescriptionobject['objectsize'] = $NextObjectSize; $thisfile_asf_contentdescriptionobject['title_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_contentdescriptionobject['author_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_contentdescriptionobject['copyright_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_contentdescriptionobject['description_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_contentdescriptionobject['rating_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_contentdescriptionobject['title'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['title_length']); $offset += $thisfile_asf_contentdescriptionobject['title_length']; $thisfile_asf_contentdescriptionobject['author'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['author_length']); $offset += $thisfile_asf_contentdescriptionobject['author_length']; $thisfile_asf_contentdescriptionobject['copyright'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['copyright_length']); $offset += $thisfile_asf_contentdescriptionobject['copyright_length']; $thisfile_asf_contentdescriptionobject['description'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['description_length']); $offset += $thisfile_asf_contentdescriptionobject['description_length']; $thisfile_asf_contentdescriptionobject['rating'] = substr($ASFHeaderData, $offset, $thisfile_asf_contentdescriptionobject['rating_length']); $offset += $thisfile_asf_contentdescriptionobject['rating_length']; $ASFcommentKeysToCopy = array('title' => 'title', 'author' => 'artist', 'copyright' => 'copyright', 'description' => 'comment', 'rating' => 'rating'); foreach ($ASFcommentKeysToCopy as $keytocopyfrom => $keytocopyto) { if (!empty($thisfile_asf_contentdescriptionobject[$keytocopyfrom])) { $thisfile_asf_comments[$keytocopyto][] = self::TrimTerm($thisfile_asf_contentdescriptionobject[$keytocopyfrom]); } } break; case self::$GETID3_ASF_Extended_Content_Description_Object: // Extended Content Description Object: (optional, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Extended Content Description object - GETID3_ASF_Extended_Content_Description_Object // Object Size QWORD 64 // size of ExtendedContent Description object, including 26 bytes of Extended Content Description Object header // Content Descriptors Count WORD 16 // number of entries in Content Descriptors list // Content Descriptors array of: variable // // * Descriptor Name Length WORD 16 // size in bytes of Descriptor Name field // * Descriptor Name WCHAR variable // array of Unicode characters - Descriptor Name // * Descriptor Value Data Type WORD 16 // Lookup array: // 0x0000 = Unicode String (variable length) // 0x0001 = BYTE array (variable length) // 0x0002 = BOOL (DWORD, 32 bits) // 0x0003 = DWORD (DWORD, 32 bits) // 0x0004 = QWORD (QWORD, 64 bits) // 0x0005 = WORD (WORD, 16 bits) // * Descriptor Value Length WORD 16 // number of bytes stored in Descriptor Value field // * Descriptor Value variable variable // value for Content Descriptor // shortcut $thisfile_asf['extended_content_description_object'] = array(); $thisfile_asf_extendedcontentdescriptionobject =& $thisfile_asf['extended_content_description_object']; $thisfile_asf_extendedcontentdescriptionobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_extendedcontentdescriptionobject['objectid'] = $NextObjectGUID; $thisfile_asf_extendedcontentdescriptionobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_extendedcontentdescriptionobject['objectsize'] = $NextObjectSize; $thisfile_asf_extendedcontentdescriptionobject['content_descriptors_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; for ($ExtendedContentDescriptorsCounter = 0; $ExtendedContentDescriptorsCounter < $thisfile_asf_extendedcontentdescriptionobject['content_descriptors_count']; $ExtendedContentDescriptorsCounter++) { // shortcut $thisfile_asf_extendedcontentdescriptionobject['content_descriptors'][$ExtendedContentDescriptorsCounter] = array(); $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current =& $thisfile_asf_extendedcontentdescriptionobject['content_descriptors'][$ExtendedContentDescriptorsCounter]; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['base_offset'] = $offset + 30; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name'] = substr($ASFHeaderData, $offset, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length']); $offset += $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name_length']; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = substr($ASFHeaderData, $offset, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length']); $offset += $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_length']; switch ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type']) { case 0x0: // Unicode string break; case 0x1: // BYTE array // do nothing break; case 0x2: // BOOL $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = (bool) GetId3_Lib_Helper::LittleEndian2Int($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']); break; case 0x3: // DWORD // DWORD case 0x4: // QWORD // QWORD case 0x5: // WORD $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'] = GetId3_Lib_Helper::LittleEndian2Int($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']); break; default: $info['warning'][] = 'extended_content_description.content_descriptors.' . $ExtendedContentDescriptorsCounter . '.value_type is invalid (' . $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type'] . ')'; //return false; break; } switch (self::TrimConvert(strtolower($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name']))) { case 'wm/albumartist': case 'artist': // Note: not 'artist', that comes from 'author' tag $thisfile_asf_comments['albumartist'] = array(self::TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'])); break; case 'wm/albumtitle': case 'album': $thisfile_asf_comments['album'] = array(self::TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'])); break; case 'wm/genre': case 'genre': $thisfile_asf_comments['genre'] = array(self::TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'])); break; case 'wm/partofset': $thisfile_asf_comments['partofset'] = array(self::TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'])); break; case 'wm/tracknumber': case 'tracknumber': // be careful casting to int: casting unicode strings to int gives unexpected results (stops parsing at first non-numeric character) $thisfile_asf_comments['track'] = array(self::TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'])); foreach ($thisfile_asf_comments['track'] as $key => $value) { if (preg_match('/^[0-9\\x00]+$/', $value)) { $thisfile_asf_comments['track'][$key] = intval(str_replace("", '', $value)); } } break; case 'wm/track': if (empty($thisfile_asf_comments['track'])) { $thisfile_asf_comments['track'] = array(1 + self::TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'])); } break; case 'wm/year': case 'year': case 'date': $thisfile_asf_comments['year'] = array(self::TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'])); break; case 'wm/lyrics': case 'lyrics': $thisfile_asf_comments['lyrics'] = array(self::TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'])); break; case 'isvbr': if ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']) { $thisfile_audio['bitrate_mode'] = 'vbr'; $thisfile_video['bitrate_mode'] = 'vbr'; } break; case 'id3': // id3v2 module might not be loaded if (class_exists('getid3_id3v2')) { $tempfile = tempnam(GetId3_GetId3::getTempDir(), 'getID3'); $tempfilehandle = fopen($tempfile, 'wb'); $tempThisfileInfo = array('encoding' => $info['encoding']); fwrite($tempfilehandle, $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']); fclose($tempfilehandle); $getid3_temp = new GetId3_GetId3(); $getid3_temp->openfile($tempfile); $getid3_id3v2 = new GetId3_Module_Tag_Id3v2($getid3_temp); $getid3_id3v2->Analyze(); $info['id3v2'] = $getid3_temp->info['id3v2']; unset($getid3_temp, $getid3_id3v2); unlink($tempfile); } break; case 'wm/encodingtime': $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['encoding_time_unix'] = self::FILETIMEtoUNIXtime($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']); $thisfile_asf_comments['encoding_time_unix'] = array($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['encoding_time_unix']); break; case 'wm/picture': $WMpicture = $this->ASF_WMpicture($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']); foreach ($WMpicture as $key => $value) { $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current[$key] = $value; } unset($WMpicture); /* $wm_picture_offset = 0; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type_id'] = GetId3_lib::LittleEndian2Int(substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 1)); $wm_picture_offset += 1; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type'] = $this->WMpictureTypeLookup($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_type_id']); $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_size'] = GetId3_lib::LittleEndian2Int(substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 4)); $wm_picture_offset += 4; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] = ''; do { $next_byte_pair = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 2); $wm_picture_offset += 2; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] .= $next_byte_pair; } while ($next_byte_pair !== "\x00\x00"); $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_description'] = ''; do { $next_byte_pair = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset, 2); $wm_picture_offset += 2; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_description'] .= $next_byte_pair; } while ($next_byte_pair !== "\x00\x00"); $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['dataoffset'] = $wm_picture_offset; $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['data'] = substr($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'], $wm_picture_offset); unset($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value']); $imageinfo = array(); $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] = ''; $imagechunkcheck = GetId3_lib::GetDataImageSize($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['data'], $imageinfo); unset($imageinfo); if (!empty($imagechunkcheck)) { $thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime'] = image_type_to_mime_type($imagechunkcheck[2]); } if (!isset($thisfile_asf_comments['picture'])) { $thisfile_asf_comments['picture'] = array(); } $thisfile_asf_comments['picture'][] = array('data'=>$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['data'], 'image_mime'=>$thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['image_mime']); */ break; default: switch ($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value_type']) { case 0: // Unicode string if (substr(self::TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name']), 0, 3) == 'WM/') { $thisfile_asf_comments[str_replace('wm/', '', strtolower(self::TrimConvert($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['name'])))] = array(self::TrimTerm($thisfile_asf_extendedcontentdescriptionobject_contentdescriptor_current['value'])); } break; case 1: break; } break; } } break; case self::$GETID3_ASF_Stream_Bitrate_Properties_Object: // Stream Bitrate Properties Object: (optional, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Stream Bitrate Properties object - GETID3_ASF_Stream_Bitrate_Properties_Object // Object Size QWORD 64 // size of Extended Content Description object, including 26 bytes of Stream Bitrate Properties Object header // Bitrate Records Count WORD 16 // number of records in Bitrate Records // Bitrate Records array of: variable // // * Flags WORD 16 // // * * Stream Number bits 7 (0x007F) // number of this stream // * * Reserved bits 9 (0xFF80) // hardcoded: 0 // * Average Bitrate DWORD 32 // in bits per second // shortcut $thisfile_asf['stream_bitrate_properties_object'] = array(); $thisfile_asf_streambitratepropertiesobject =& $thisfile_asf['stream_bitrate_properties_object']; $thisfile_asf_streambitratepropertiesobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_streambitratepropertiesobject['objectid'] = $NextObjectGUID; $thisfile_asf_streambitratepropertiesobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_streambitratepropertiesobject['objectsize'] = $NextObjectSize; $thisfile_asf_streambitratepropertiesobject['bitrate_records_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; for ($BitrateRecordsCounter = 0; $BitrateRecordsCounter < $thisfile_asf_streambitratepropertiesobject['bitrate_records_count']; $BitrateRecordsCounter++) { $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags_raw'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 2)); $offset += 2; $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags']['stream_number'] = $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['flags_raw'] & 0x7f; $thisfile_asf_streambitratepropertiesobject['bitrate_records'][$BitrateRecordsCounter]['bitrate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFHeaderData, $offset, 4)); $offset += 4; } break; case self::$GETID3_ASF_Padding_Object: // Padding Object: (optional) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Padding object - GETID3_ASF_Padding_Object // Object Size QWORD 64 // size of Padding object, including 24 bytes of ASF Padding Object header // Padding Data BYTESTREAM variable // ignore // shortcut $thisfile_asf['padding_object'] = array(); $thisfile_asf_paddingobject =& $thisfile_asf['padding_object']; $thisfile_asf_paddingobject['offset'] = $NextObjectOffset + $offset; $thisfile_asf_paddingobject['objectid'] = $NextObjectGUID; $thisfile_asf_paddingobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_paddingobject['objectsize'] = $NextObjectSize; $thisfile_asf_paddingobject['padding_length'] = $thisfile_asf_paddingobject['objectsize'] - 16 - 8; $thisfile_asf_paddingobject['padding'] = substr($ASFHeaderData, $offset, $thisfile_asf_paddingobject['padding_length']); $offset += $NextObjectSize - 16 - 8; break; case self::$GETID3_ASF_Extended_Content_Encryption_Object: case self::$GETID3_ASF_Content_Encryption_Object: // WMA DRM - just ignore $offset += $NextObjectSize - 16 - 8; break; default: // Implementations shall ignore any standard or non-standard object that they do not know how to handle. if (self::GUIDname($NextObjectGUIDtext)) { $info['warning'][] = 'unhandled GUID "' . self::GUIDname($NextObjectGUIDtext) . '" {' . $NextObjectGUIDtext . '} in ASF header at offset ' . ($offset - 16 - 8); } else { $info['warning'][] = 'unknown GUID {' . $NextObjectGUIDtext . '} in ASF header at offset ' . ($offset - 16 - 8); } $offset += $NextObjectSize - 16 - 8; break; } } if (isset($thisfile_asf_streambitrateproperties['bitrate_records_count'])) { $ASFbitrateAudio = 0; $ASFbitrateVideo = 0; for ($BitrateRecordsCounter = 0; $BitrateRecordsCounter < $thisfile_asf_streambitrateproperties['bitrate_records_count']; $BitrateRecordsCounter++) { if (isset($thisfile_asf_codeclistobject['codec_entries'][$BitrateRecordsCounter])) { switch ($thisfile_asf_codeclistobject['codec_entries'][$BitrateRecordsCounter]['type_raw']) { case 1: $ASFbitrateVideo += $thisfile_asf_streambitrateproperties['bitrate_records'][$BitrateRecordsCounter]['bitrate']; break; case 2: $ASFbitrateAudio += $thisfile_asf_streambitrateproperties['bitrate_records'][$BitrateRecordsCounter]['bitrate']; break; default: // do nothing break; } } } if ($ASFbitrateAudio > 0) { $thisfile_audio['bitrate'] = $ASFbitrateAudio; } if ($ASFbitrateVideo > 0) { $thisfile_video['bitrate'] = $ASFbitrateVideo; } } if (isset($thisfile_asf['stream_properties_object']) && is_array($thisfile_asf['stream_properties_object'])) { $thisfile_audio['bitrate'] = 0; $thisfile_video['bitrate'] = 0; foreach ($thisfile_asf['stream_properties_object'] as $streamnumber => $streamdata) { switch ($streamdata['stream_type']) { case self::$GETID3_ASF_Audio_Media: // Field Name Field Type Size (bits) // Codec ID / Format Tag WORD 16 // unique ID of audio codec - defined as wFormatTag field of WAVEFORMATEX structure // Number of Channels WORD 16 // number of channels of audio - defined as nChannels field of WAVEFORMATEX structure // Samples Per Second DWORD 32 // in Hertz - defined as nSamplesPerSec field of WAVEFORMATEX structure // Average number of Bytes/sec DWORD 32 // bytes/sec of audio stream - defined as nAvgBytesPerSec field of WAVEFORMATEX structure // Block Alignment WORD 16 // block size in bytes of audio codec - defined as nBlockAlign field of WAVEFORMATEX structure // Bits per sample WORD 16 // bits per sample of mono data. set to zero for variable bitrate codecs. defined as wBitsPerSample field of WAVEFORMATEX structure // Codec Specific Data Size WORD 16 // size in bytes of Codec Specific Data buffer - defined as cbSize field of WAVEFORMATEX structure // Codec Specific Data BYTESTREAM variable // array of codec-specific data bytes // shortcut $thisfile_asf['audio_media'][$streamnumber] = array(); $thisfile_asf_audiomedia_currentstream =& $thisfile_asf['audio_media'][$streamnumber]; $audiomediaoffset = 0; $thisfile_asf_audiomedia_currentstream = GetId3_Module_AudioVideo_Riff::RIFFparseWAVEFORMATex(substr($streamdata['type_specific_data'], $audiomediaoffset, 16)); $audiomediaoffset += 16; $thisfile_audio['lossless'] = false; switch ($thisfile_asf_audiomedia_currentstream['raw']['wFormatTag']) { case 0x1: // PCM // PCM case 0x163: // WMA9 Lossless $thisfile_audio['lossless'] = true; break; } if (!empty($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'])) { foreach ($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'] as $dummy => $dataarray) { if (isset($dataarray['flags']['stream_number']) && $dataarray['flags']['stream_number'] == $streamnumber) { $thisfile_asf_audiomedia_currentstream['bitrate'] = $dataarray['bitrate']; $thisfile_audio['bitrate'] += $dataarray['bitrate']; break; } } } else { if (!empty($thisfile_asf_audiomedia_currentstream['bytes_sec'])) { $thisfile_audio['bitrate'] += $thisfile_asf_audiomedia_currentstream['bytes_sec'] * 8; } elseif (!empty($thisfile_asf_audiomedia_currentstream['bitrate'])) { $thisfile_audio['bitrate'] += $thisfile_asf_audiomedia_currentstream['bitrate']; } } $thisfile_audio['streams'][$streamnumber] = $thisfile_asf_audiomedia_currentstream; $thisfile_audio['streams'][$streamnumber]['wformattag'] = $thisfile_asf_audiomedia_currentstream['raw']['wFormatTag']; $thisfile_audio['streams'][$streamnumber]['lossless'] = $thisfile_audio['lossless']; $thisfile_audio['streams'][$streamnumber]['bitrate'] = $thisfile_audio['bitrate']; $thisfile_audio['streams'][$streamnumber]['dataformat'] = 'wma'; unset($thisfile_audio['streams'][$streamnumber]['raw']); $thisfile_asf_audiomedia_currentstream['codec_data_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $audiomediaoffset, 2)); $audiomediaoffset += 2; $thisfile_asf_audiomedia_currentstream['codec_data'] = substr($streamdata['type_specific_data'], $audiomediaoffset, $thisfile_asf_audiomedia_currentstream['codec_data_size']); $audiomediaoffset += $thisfile_asf_audiomedia_currentstream['codec_data_size']; break; case self::$GETID3_ASF_Video_Media: // Field Name Field Type Size (bits) // Encoded Image Width DWORD 32 // width of image in pixels // Encoded Image Height DWORD 32 // height of image in pixels // Reserved Flags BYTE 8 // hardcoded: 0x02 // Format Data Size WORD 16 // size of Format Data field in bytes // Format Data array of: variable // // * Format Data Size DWORD 32 // number of bytes in Format Data field, in bytes - defined as biSize field of BITMAPINFOHEADER structure // * Image Width LONG 32 // width of encoded image in pixels - defined as biWidth field of BITMAPINFOHEADER structure // * Image Height LONG 32 // height of encoded image in pixels - defined as biHeight field of BITMAPINFOHEADER structure // * Reserved WORD 16 // hardcoded: 0x0001 - defined as biPlanes field of BITMAPINFOHEADER structure // * Bits Per Pixel Count WORD 16 // bits per pixel - defined as biBitCount field of BITMAPINFOHEADER structure // * Compression ID FOURCC 32 // fourcc of video codec - defined as biCompression field of BITMAPINFOHEADER structure // * Image Size DWORD 32 // image size in bytes - defined as biSizeImage field of BITMAPINFOHEADER structure // * Horizontal Pixels / Meter DWORD 32 // horizontal resolution of target device in pixels per meter - defined as biXPelsPerMeter field of BITMAPINFOHEADER structure // * Vertical Pixels / Meter DWORD 32 // vertical resolution of target device in pixels per meter - defined as biYPelsPerMeter field of BITMAPINFOHEADER structure // * Colors Used Count DWORD 32 // number of color indexes in the color table that are actually used - defined as biClrUsed field of BITMAPINFOHEADER structure // * Important Colors Count DWORD 32 // number of color index required for displaying bitmap. if zero, all colors are required. defined as biClrImportant field of BITMAPINFOHEADER structure // * Codec Specific Data BYTESTREAM variable // array of codec-specific data bytes // shortcut $thisfile_asf['video_media'][$streamnumber] = array(); $thisfile_asf_videomedia_currentstream =& $thisfile_asf['video_media'][$streamnumber]; $videomediaoffset = 0; $thisfile_asf_videomedia_currentstream['image_width'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4)); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['image_height'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4)); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['flags'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 1)); $videomediaoffset += 1; $thisfile_asf_videomedia_currentstream['format_data_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2)); $videomediaoffset += 2; $thisfile_asf_videomedia_currentstream['format_data']['format_data_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4)); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['format_data']['image_width'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4)); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['format_data']['image_height'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4)); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['format_data']['reserved'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2)); $videomediaoffset += 2; $thisfile_asf_videomedia_currentstream['format_data']['bits_per_pixel'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 2)); $videomediaoffset += 2; $thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc'] = substr($streamdata['type_specific_data'], $videomediaoffset, 4); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['format_data']['image_size'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4)); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['format_data']['horizontal_pels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4)); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['format_data']['vertical_pels'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4)); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['format_data']['colors_used'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4)); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['format_data']['colors_important'] = GetId3_Lib_Helper::LittleEndian2Int(substr($streamdata['type_specific_data'], $videomediaoffset, 4)); $videomediaoffset += 4; $thisfile_asf_videomedia_currentstream['format_data']['codec_data'] = substr($streamdata['type_specific_data'], $videomediaoffset); if (!empty($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'])) { foreach ($thisfile_asf['stream_bitrate_properties_object']['bitrate_records'] as $dummy => $dataarray) { if (isset($dataarray['flags']['stream_number']) && $dataarray['flags']['stream_number'] == $streamnumber) { $thisfile_asf_videomedia_currentstream['bitrate'] = $dataarray['bitrate']; $thisfile_video['streams'][$streamnumber]['bitrate'] = $dataarray['bitrate']; $thisfile_video['bitrate'] += $dataarray['bitrate']; break; } } } $thisfile_asf_videomedia_currentstream['format_data']['codec'] = GetId3_Module_AudioVideo_Riff::RIFFfourccLookup($thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc']); $thisfile_video['streams'][$streamnumber]['fourcc'] = $thisfile_asf_videomedia_currentstream['format_data']['codec_fourcc']; $thisfile_video['streams'][$streamnumber]['codec'] = $thisfile_asf_videomedia_currentstream['format_data']['codec']; $thisfile_video['streams'][$streamnumber]['resolution_x'] = $thisfile_asf_videomedia_currentstream['image_width']; $thisfile_video['streams'][$streamnumber]['resolution_y'] = $thisfile_asf_videomedia_currentstream['image_height']; $thisfile_video['streams'][$streamnumber]['bits_per_sample'] = $thisfile_asf_videomedia_currentstream['format_data']['bits_per_pixel']; break; default: break; } } } while (ftell($this->getid3->fp) < $info['avdataend']) { $NextObjectDataHeader = fread($this->getid3->fp, 24); $offset = 0; $NextObjectGUID = substr($NextObjectDataHeader, 0, 16); $offset += 16; $NextObjectGUIDtext = self::BytestringToGUID($NextObjectGUID); $NextObjectSize = GetId3_Lib_Helper::LittleEndian2Int(substr($NextObjectDataHeader, $offset, 8)); $offset += 8; switch ($NextObjectGUID) { case self::$GETID3_ASF_Data_Object: // Data Object: (mandatory, one only) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Data object - GETID3_ASF_Data_Object // Object Size QWORD 64 // size of Data object, including 50 bytes of Data Object header. may be 0 if FilePropertiesObject.BroadcastFlag == 1 // File ID GUID 128 // unique identifier. identical to File ID field in Header Object // Total Data Packets QWORD 64 // number of Data Packet entries in Data Object. invalid if FilePropertiesObject.BroadcastFlag == 1 // Reserved WORD 16 // hardcoded: 0x0101 // shortcut $thisfile_asf['data_object'] = array(); $thisfile_asf_dataobject =& $thisfile_asf['data_object']; $DataObjectData = $NextObjectDataHeader . fread($this->getid3->fp, 50 - 24); $offset = 24; $thisfile_asf_dataobject['objectid'] = $NextObjectGUID; $thisfile_asf_dataobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_dataobject['objectsize'] = $NextObjectSize; $thisfile_asf_dataobject['fileid'] = substr($DataObjectData, $offset, 16); $offset += 16; $thisfile_asf_dataobject['fileid_guid'] = self::BytestringToGUID($thisfile_asf_dataobject['fileid']); $thisfile_asf_dataobject['total_data_packets'] = GetId3_Lib_Helper::LittleEndian2Int(substr($DataObjectData, $offset, 8)); $offset += 8; $thisfile_asf_dataobject['reserved'] = GetId3_Lib_Helper::LittleEndian2Int(substr($DataObjectData, $offset, 2)); $offset += 2; if ($thisfile_asf_dataobject['reserved'] != 0x101) { $info['warning'][] = 'data_object.reserved (' . GetId3_Lib_Helper::PrintHexBytes($thisfile_asf_dataobject['reserved']) . ') does not match expected value of "0x0101"'; //return false; break; } // Data Packets array of: variable // // * Error Correction Flags BYTE 8 // // * * Error Correction Data Length bits 4 // if Error Correction Length Type == 00, size of Error Correction Data in bytes, else hardcoded: 0000 // * * Opaque Data Present bits 1 // // * * Error Correction Length Type bits 2 // number of bits for size of the error correction data. hardcoded: 00 // * * Error Correction Present bits 1 // If set, use Opaque Data Packet structure, else use Payload structure // * Error Correction Data $info['avdataoffset'] = ftell($this->getid3->fp); fseek($this->getid3->fp, $thisfile_asf_dataobject['objectsize'] - 50, SEEK_CUR); // skip actual audio/video data $info['avdataend'] = ftell($this->getid3->fp); break; case self::$GETID3_ASF_Simple_Index_Object: // Simple Index Object: (optional, recommended, one per video stream) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for Simple Index object - GETID3_ASF_Data_Object // Object Size QWORD 64 // size of Simple Index object, including 56 bytes of Simple Index Object header // File ID GUID 128 // unique identifier. may be zero or identical to File ID field in Data Object and Header Object // Index Entry Time Interval QWORD 64 // interval between index entries in 100-nanosecond units // Maximum Packet Count DWORD 32 // maximum packet count for all index entries // Index Entries Count DWORD 32 // number of Index Entries structures // Index Entries array of: variable // // * Packet Number DWORD 32 // number of the Data Packet associated with this index entry // * Packet Count WORD 16 // number of Data Packets to sent at this index entry // shortcut $thisfile_asf['simple_index_object'] = array(); $thisfile_asf_simpleindexobject =& $thisfile_asf['simple_index_object']; $SimpleIndexObjectData = $NextObjectDataHeader . fread($this->getid3->fp, 56 - 24); $offset = 24; $thisfile_asf_simpleindexobject['objectid'] = $NextObjectGUID; $thisfile_asf_simpleindexobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_simpleindexobject['objectsize'] = $NextObjectSize; $thisfile_asf_simpleindexobject['fileid'] = substr($SimpleIndexObjectData, $offset, 16); $offset += 16; $thisfile_asf_simpleindexobject['fileid_guid'] = self::BytestringToGUID($thisfile_asf_simpleindexobject['fileid']); $thisfile_asf_simpleindexobject['index_entry_time_interval'] = GetId3_Lib_Helper::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 8)); $offset += 8; $thisfile_asf_simpleindexobject['maximum_packet_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 4)); $offset += 4; $thisfile_asf_simpleindexobject['index_entries_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($SimpleIndexObjectData, $offset, 4)); $offset += 4; $IndexEntriesData = $SimpleIndexObjectData . fread($this->getid3->fp, 6 * $thisfile_asf_simpleindexobject['index_entries_count']); for ($IndexEntriesCounter = 0; $IndexEntriesCounter < $thisfile_asf_simpleindexobject['index_entries_count']; $IndexEntriesCounter++) { $thisfile_asf_simpleindexobject['index_entries'][$IndexEntriesCounter]['packet_number'] = GetId3_Lib_Helper::LittleEndian2Int(substr($IndexEntriesData, $offset, 4)); $offset += 4; $thisfile_asf_simpleindexobject['index_entries'][$IndexEntriesCounter]['packet_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($IndexEntriesData, $offset, 4)); $offset += 2; } break; case self::$GETID3_ASF_Index_Object: // 6.2 ASF top-level Index Object (optional but recommended when appropriate, 0 or 1) // Field Name Field Type Size (bits) // Object ID GUID 128 // GUID for the Index Object - GETID3_ASF_Index_Object // Object Size QWORD 64 // Specifies the size, in bytes, of the Index Object, including at least 34 bytes of Index Object header // Index Entry Time Interval DWORD 32 // Specifies the time interval between each index entry in ms. // Index Specifiers Count WORD 16 // Specifies the number of Index Specifiers structures in this Index Object. // Index Blocks Count DWORD 32 // Specifies the number of Index Blocks structures in this Index Object. // Index Entry Time Interval DWORD 32 // Specifies the time interval between index entries in milliseconds. This value cannot be 0. // Index Specifiers Count WORD 16 // Specifies the number of entries in the Index Specifiers list. Valid values are 1 and greater. // Index Specifiers array of: varies // // * Stream Number WORD 16 // Specifies the stream number that the Index Specifiers refer to. Valid values are between 1 and 127. // * Index Type WORD 16 // Specifies Index Type values as follows: // 1 = Nearest Past Data Packet - indexes point to the data packet whose presentation time is closest to the index entry time. // 2 = Nearest Past Media Object - indexes point to the closest data packet containing an entire object or first fragment of an object. // 3 = Nearest Past Cleanpoint. - indexes point to the closest data packet containing an entire object (or first fragment of an object) that has the Cleanpoint Flag set. // Nearest Past Cleanpoint is the most common type of index. // Index Entry Count DWORD 32 // Specifies the number of Index Entries in the block. // * Block Positions QWORD varies // Specifies a list of byte offsets of the beginnings of the blocks relative to the beginning of the first Data Packet (i.e., the beginning of the Data Object + 50 bytes). The number of entries in this list is specified by the value of the Index Specifiers Count field. The order of those byte offsets is tied to the order in which Index Specifiers are listed. // * Index Entries array of: varies // // * * Offsets DWORD varies // An offset value of 0xffffffff indicates an invalid offset value // shortcut $thisfile_asf['asf_index_object'] = array(); $thisfile_asf_asfindexobject =& $thisfile_asf['asf_index_object']; $ASFIndexObjectData = $NextObjectDataHeader . fread($this->getid3->fp, 34 - 24); $offset = 24; $thisfile_asf_asfindexobject['objectid'] = $NextObjectGUID; $thisfile_asf_asfindexobject['objectid_guid'] = $NextObjectGUIDtext; $thisfile_asf_asfindexobject['objectsize'] = $NextObjectSize; $thisfile_asf_asfindexobject['entry_time_interval'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4)); $offset += 4; $thisfile_asf_asfindexobject['index_specifiers_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2)); $offset += 2; $thisfile_asf_asfindexobject['index_blocks_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4)); $offset += 4; $ASFIndexObjectData .= fread($this->getid3->fp, 4 * $thisfile_asf_asfindexobject['index_specifiers_count']); for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) { $IndexSpecifierStreamNumber = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2)); $offset += 2; $thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['stream_number'] = $IndexSpecifierStreamNumber; $thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 2)); $offset += 2; $thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type_text'] = $this->ASFIndexObjectIndexTypeLookup($thisfile_asf_asfindexobject['index_specifiers'][$IndexSpecifiersCounter]['index_type']); } $ASFIndexObjectData .= fread($this->getid3->fp, 4); $thisfile_asf_asfindexobject['index_entry_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4)); $offset += 4; $ASFIndexObjectData .= fread($this->getid3->fp, 8 * $thisfile_asf_asfindexobject['index_specifiers_count']); for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) { $thisfile_asf_asfindexobject['block_positions'][$IndexSpecifiersCounter] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 8)); $offset += 8; } $ASFIndexObjectData .= fread($this->getid3->fp, 4 * $thisfile_asf_asfindexobject['index_specifiers_count'] * $thisfile_asf_asfindexobject['index_entry_count']); for ($IndexEntryCounter = 0; $IndexEntryCounter < $thisfile_asf_asfindexobject['index_entry_count']; $IndexEntryCounter++) { for ($IndexSpecifiersCounter = 0; $IndexSpecifiersCounter < $thisfile_asf_asfindexobject['index_specifiers_count']; $IndexSpecifiersCounter++) { $thisfile_asf_asfindexobject['offsets'][$IndexSpecifiersCounter][$IndexEntryCounter] = GetId3_Lib_Helper::LittleEndian2Int(substr($ASFIndexObjectData, $offset, 4)); $offset += 4; } } break; default: // Implementations shall ignore any standard or non-standard object that they do not know how to handle. if (self::GUIDname($NextObjectGUIDtext)) { $info['warning'][] = 'unhandled GUID "' . self::GUIDname($NextObjectGUIDtext) . '" {' . $NextObjectGUIDtext . '} in ASF body at offset ' . ($offset - 16 - 8); } else { $info['warning'][] = 'unknown GUID {' . $NextObjectGUIDtext . '} in ASF body at offset ' . (ftell($this->getid3->fp) - 16 - 8); } fseek($this->getid3->fp, $NextObjectSize - 16 - 8, SEEK_CUR); break; } } if (isset($thisfile_asf_codeclistobject['codec_entries']) && is_array($thisfile_asf_codeclistobject['codec_entries'])) { foreach ($thisfile_asf_codeclistobject['codec_entries'] as $streamnumber => $streamdata) { switch ($streamdata['information']) { case 'WMV1': case 'WMV2': case 'WMV3': case 'MSS1': case 'MSS2': case 'WMVA': case 'WVC1': case 'WMVP': case 'WVP2': $thisfile_video['dataformat'] = 'wmv'; $info['mime_type'] = 'video/x-ms-wmv'; break; case 'MP42': case 'MP43': case 'MP4S': case 'mp4s': $thisfile_video['dataformat'] = 'asf'; $info['mime_type'] = 'video/x-ms-asf'; break; default: switch ($streamdata['type_raw']) { case 1: if (strstr(self::TrimConvert($streamdata['name']), 'Windows Media')) { $thisfile_video['dataformat'] = 'wmv'; if ($info['mime_type'] == 'video/x-ms-asf') { $info['mime_type'] = 'video/x-ms-wmv'; } } break; case 2: if (strstr(self::TrimConvert($streamdata['name']), 'Windows Media')) { $thisfile_audio['dataformat'] = 'wma'; if ($info['mime_type'] == 'video/x-ms-asf') { $info['mime_type'] = 'audio/x-ms-wma'; } } break; } break; } } } switch (isset($thisfile_audio['codec']) ? $thisfile_audio['codec'] : '') { case 'MPEG Layer-3': $thisfile_audio['dataformat'] = 'mp3'; break; default: break; } if (isset($thisfile_asf_codeclistobject['codec_entries'])) { foreach ($thisfile_asf_codeclistobject['codec_entries'] as $streamnumber => $streamdata) { switch ($streamdata['type_raw']) { case 1: // video $thisfile_video['encoder'] = self::TrimConvert($thisfile_asf_codeclistobject['codec_entries'][$streamnumber]['name']); break; case 2: // audio $thisfile_audio['encoder'] = self::TrimConvert($thisfile_asf_codeclistobject['codec_entries'][$streamnumber]['name']); // AH 2003-10-01 $thisfile_audio['encoder_options'] = self::TrimConvert($thisfile_asf_codeclistobject['codec_entries'][0]['description']); $thisfile_audio['codec'] = $thisfile_audio['encoder']; break; default: $info['warning'][] = 'Unknown streamtype: [codec_list_object][codec_entries][' . $streamnumber . '][type_raw] == ' . $streamdata['type_raw']; break; } } } if (isset($info['audio'])) { $thisfile_audio['lossless'] = isset($thisfile_audio['lossless']) ? $thisfile_audio['lossless'] : false; $thisfile_audio['dataformat'] = !empty($thisfile_audio['dataformat']) ? $thisfile_audio['dataformat'] : 'asf'; } if (!empty($thisfile_video['dataformat'])) { $thisfile_video['lossless'] = isset($thisfile_audio['lossless']) ? $thisfile_audio['lossless'] : false; $thisfile_video['pixel_aspect_ratio'] = isset($thisfile_audio['pixel_aspect_ratio']) ? $thisfile_audio['pixel_aspect_ratio'] : (double) 1; $thisfile_video['dataformat'] = !empty($thisfile_video['dataformat']) ? $thisfile_video['dataformat'] : 'asf'; } if (!empty($thisfile_video['streams'])) { $thisfile_video['streams']['resolution_x'] = 0; $thisfile_video['streams']['resolution_y'] = 0; foreach ($thisfile_video['streams'] as $key => $valuearray) { if ($valuearray['resolution_x'] > $thisfile_video['streams']['resolution_x'] || $valuearray['resolution_y'] > $thisfile_video['streams']['resolution_y']) { $thisfile_video['resolution_x'] = $valuearray['resolution_x']; $thisfile_video['resolution_y'] = $valuearray['resolution_y']; } } } $info['bitrate'] = (isset($thisfile_audio['bitrate']) ? $thisfile_audio['bitrate'] : 0) + (isset($thisfile_video['bitrate']) ? $thisfile_video['bitrate'] : 0); if ((!isset($info['playtime_seconds']) || $info['playtime_seconds'] <= 0) && $info['bitrate'] > 0) { $info['playtime_seconds'] = ($info['filesize'] - $info['avdataoffset']) / ($info['bitrate'] / 8); } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; // based loosely on code from TTwinVQ by Jurgen Faul <jfaulØgmx*de> // http://jfaul.de/atl or http://j-faul.virtualave.net/atl/atl.html $info['fileformat'] = 'vqf'; $info['audio']['dataformat'] = 'vqf'; $info['audio']['bitrate_mode'] = 'cbr'; $info['audio']['lossless'] = false; // shortcut $info['vqf']['raw'] = array(); $thisfile_vqf =& $info['vqf']; $thisfile_vqf_raw =& $thisfile_vqf['raw']; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $VQFheaderData = fread($this->getid3->fp, 16); $offset = 0; $thisfile_vqf_raw['header_tag'] = substr($VQFheaderData, $offset, 4); $magic = 'TWIN'; if ($thisfile_vqf_raw['header_tag'] != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($thisfile_vqf_raw['header_tag']) . '"'; unset($info['vqf']); unset($info['fileformat']); return false; } $offset += 4; $thisfile_vqf_raw['version'] = substr($VQFheaderData, $offset, 8); $offset += 8; $thisfile_vqf_raw['size'] = GetId3_Lib_Helper::BigEndian2Int(substr($VQFheaderData, $offset, 4)); $offset += 4; while (ftell($this->getid3->fp) < $info['avdataend']) { $ChunkBaseOffset = ftell($this->getid3->fp); $chunkoffset = 0; $ChunkData = fread($this->getid3->fp, 8); $ChunkName = substr($ChunkData, $chunkoffset, 4); if ($ChunkName == 'DATA') { $info['avdataoffset'] = $ChunkBaseOffset; break; } $chunkoffset += 4; $ChunkSize = GetId3_Lib_Helper::BigEndian2Int(substr($ChunkData, $chunkoffset, 4)); $chunkoffset += 4; if ($ChunkSize > $info['avdataend'] - ftell($this->getid3->fp)) { $info['error'][] = 'Invalid chunk size (' . $ChunkSize . ') for chunk "' . $ChunkName . '" at offset ' . $ChunkBaseOffset; break; } if ($ChunkSize > 0) { $ChunkData .= fread($this->getid3->fp, $ChunkSize); } switch ($ChunkName) { case 'COMM': // shortcut $thisfile_vqf['COMM'] = array(); $thisfile_vqf_COMM =& $thisfile_vqf['COMM']; $thisfile_vqf_COMM['channel_mode'] = GetId3_Lib_Helper::BigEndian2Int(substr($ChunkData, $chunkoffset, 4)); $chunkoffset += 4; $thisfile_vqf_COMM['bitrate'] = GetId3_Lib_Helper::BigEndian2Int(substr($ChunkData, $chunkoffset, 4)); $chunkoffset += 4; $thisfile_vqf_COMM['sample_rate'] = GetId3_Lib_Helper::BigEndian2Int(substr($ChunkData, $chunkoffset, 4)); $chunkoffset += 4; $thisfile_vqf_COMM['security_level'] = GetId3_Lib_Helper::BigEndian2Int(substr($ChunkData, $chunkoffset, 4)); $chunkoffset += 4; $info['audio']['channels'] = $thisfile_vqf_COMM['channel_mode'] + 1; $info['audio']['sample_rate'] = $this->VQFchannelFrequencyLookup($thisfile_vqf_COMM['sample_rate']); $info['audio']['bitrate'] = $thisfile_vqf_COMM['bitrate'] * 1000; $info['audio']['encoder_options'] = 'CBR' . ceil($info['audio']['bitrate'] / 1000); if ($info['audio']['bitrate'] == 0) { $info['error'][] = 'Corrupt VQF file: bitrate_audio == zero'; return false; } break; case 'NAME': case 'AUTH': case '(c) ': case 'FILE': case 'COMT': case 'ALBM': $thisfile_vqf['comments'][$this->VQFcommentNiceNameLookup($ChunkName)][] = trim(substr($ChunkData, 8)); break; case 'DSIZ': $thisfile_vqf['DSIZ'] = GetId3_Lib_Helper::BigEndian2Int(substr($ChunkData, 8, 4)); break; default: $info['warning'][] = 'Unhandled chunk type "' . $ChunkName . '" at offset ' . $ChunkBaseOffset; break; } } $info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['audio']['bitrate']; if (isset($thisfile_vqf['DSIZ']) && $thisfile_vqf['DSIZ'] != $info['avdataend'] - $info['avdataoffset'] - strlen('DATA')) { switch ($thisfile_vqf['DSIZ']) { case 0: case 1: $info['warning'][] = 'Invalid DSIZ value "' . $thisfile_vqf['DSIZ'] . '". This is known to happen with VQF files encoded by Ahead Nero, and seems to be its way of saying this is TwinVQF v' . ($thisfile_vqf['DSIZ'] + 1) . '.0'; $info['audio']['encoder'] = 'Ahead Nero'; break; default: $info['warning'][] = 'Probable corrupted file - should be ' . $thisfile_vqf['DSIZ'] . ' bytes, actually ' . ($info['avdataend'] - $info['avdataoffset'] - strlen('DATA')); break; } } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; $info['fileformat'] = 'swf'; $info['video']['dataformat'] = 'swf'; // http://www.openswf.org/spec/SWFfileformat.html fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $SWFfileData = fread($this->getid3->fp, $info['avdataend'] - $info['avdataoffset']); // 8 + 2 + 2 + max(9) bytes NOT including Frame_Size RECT data $info['swf']['header']['signature'] = substr($SWFfileData, 0, 3); switch ($info['swf']['header']['signature']) { case 'FWS': $info['swf']['header']['compressed'] = false; break; case 'CWS': $info['swf']['header']['compressed'] = true; break; default: $info['error'][] = 'Expecting "FWS" or "CWS" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes($info['swf']['header']['signature']) . '"'; unset($info['swf']); unset($info['fileformat']); return false; break; } $info['swf']['header']['version'] = GetId3_Lib_Helper::LittleEndian2Int(substr($SWFfileData, 3, 1)); $info['swf']['header']['length'] = GetId3_Lib_Helper::LittleEndian2Int(substr($SWFfileData, 4, 4)); if ($info['swf']['header']['compressed']) { $SWFHead = substr($SWFfileData, 0, 8); $SWFfileData = substr($SWFfileData, 8); if ($decompressed = @gzuncompress($SWFfileData)) { $SWFfileData = $SWFHead . $decompressed; } else { $info['error'][] = 'Error decompressing compressed SWF data (' . strlen($SWFfileData) . ' bytes compressed, should be ' . ($info['swf']['header']['length'] - 8) . ' bytes uncompressed)'; return false; } } $FrameSizeBitsPerValue = (ord(substr($SWFfileData, 8, 1)) & 0xf8) >> 3; $FrameSizeDataLength = ceil((5 + 4 * $FrameSizeBitsPerValue) / 8); $FrameSizeDataString = str_pad(decbin(ord(substr($SWFfileData, 8, 1)) & 0x7), 3, '0', STR_PAD_LEFT); for ($i = 1; $i < $FrameSizeDataLength; $i++) { $FrameSizeDataString .= str_pad(decbin(ord(substr($SWFfileData, 8 + $i, 1))), 8, '0', STR_PAD_LEFT); } list($X1, $X2, $Y1, $Y2) = explode("\n", wordwrap($FrameSizeDataString, $FrameSizeBitsPerValue, "\n", 1)); $info['swf']['header']['frame_width'] = GetId3_Lib_Helper::Bin2Dec($X2); $info['swf']['header']['frame_height'] = GetId3_Lib_Helper::Bin2Dec($Y2); // http://www-lehre.informatik.uni-osnabrueck.de/~fbstark/diplom/docs/swf/Flash_Uncovered.htm // Next in the header is the frame rate, which is kind of weird. // It is supposed to be stored as a 16bit integer, but the first byte // (or last depending on how you look at it) is completely ignored. // Example: 0x000C -> 0x0C -> 12 So the frame rate is 12 fps. // Byte at (8 + $FrameSizeDataLength) is always zero and ignored $info['swf']['header']['frame_rate'] = GetId3_Lib_Helper::LittleEndian2Int(substr($SWFfileData, 9 + $FrameSizeDataLength, 1)); $info['swf']['header']['frame_count'] = GetId3_Lib_Helper::LittleEndian2Int(substr($SWFfileData, 10 + $FrameSizeDataLength, 2)); $info['video']['frame_rate'] = $info['swf']['header']['frame_rate']; $info['video']['resolution_x'] = intval(round($info['swf']['header']['frame_width'] / 20)); $info['video']['resolution_y'] = intval(round($info['swf']['header']['frame_height'] / 20)); $info['video']['pixel_aspect_ratio'] = (double) 1; if ($info['swf']['header']['frame_count'] > 0 && $info['swf']['header']['frame_rate'] > 0) { $info['playtime_seconds'] = $info['swf']['header']['frame_count'] / $info['swf']['header']['frame_rate']; } //echo __LINE__.'='.number_format(microtime(true) - $start_time, 3).'<br>'; // SWF tags $CurrentOffset = 12 + $FrameSizeDataLength; $SWFdataLength = strlen($SWFfileData); while ($CurrentOffset < $SWFdataLength) { //echo __LINE__.'='.number_format(microtime(true) - $start_time, 3).'<br>'; $TagIDTagLength = GetId3_Lib_Helper::LittleEndian2Int(substr($SWFfileData, $CurrentOffset, 2)); $TagID = ($TagIDTagLength & 0xfffc) >> 6; $TagLength = $TagIDTagLength & 0x3f; $CurrentOffset += 2; if ($TagLength == 0x3f) { $TagLength = GetId3_Lib_Helper::LittleEndian2Int(substr($SWFfileData, $CurrentOffset, 4)); $CurrentOffset += 4; } unset($TagData); $TagData['offset'] = $CurrentOffset; $TagData['size'] = $TagLength; $TagData['id'] = $TagID; $TagData['data'] = substr($SWFfileData, $CurrentOffset, $TagLength); switch ($TagID) { case 0: // end of movie break 2; case 9: // Set background color //$info['swf']['tags'][] = $TagData; $info['swf']['bgcolor'] = strtoupper(str_pad(dechex(GetId3_Lib_Helper::BigEndian2Int($TagData['data'])), 6, '0', STR_PAD_LEFT)); break; default: if ($this->ReturnAllTagData) { $info['swf']['tags'][] = $TagData; } break; } $CurrentOffset += $TagLength; } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; // shortcut $info['bonk'] = array(); $thisfile_bonk =& $info['bonk']; $thisfile_bonk['dataoffset'] = $info['avdataoffset']; $thisfile_bonk['dataend'] = $info['avdataend']; if (!GetId3_Lib_Helper::intValueSupported($thisfile_bonk['dataend'])) { $info['warning'][] = 'Unable to parse BONK file from end (v0.6+ preferred method) because PHP filesystem functions only support up to ' . round(PHP_INT_MAX / 1073741824) . 'GB'; } else { // scan-from-end method, for v0.6 and higher fseek($this->getid3->fp, $thisfile_bonk['dataend'] - 8, SEEK_SET); $PossibleBonkTag = fread($this->getid3->fp, 8); while ($this->BonkIsValidTagName(substr($PossibleBonkTag, 4, 4), true)) { $BonkTagSize = GetId3_Lib_Helper::LittleEndian2Int(substr($PossibleBonkTag, 0, 4)); fseek($this->getid3->fp, 0 - $BonkTagSize, SEEK_CUR); $BonkTagOffset = ftell($this->getid3->fp); $TagHeaderTest = fread($this->getid3->fp, 5); if ($TagHeaderTest[0] != "" || substr($PossibleBonkTag, 4, 4) != strtolower(substr($PossibleBonkTag, 4, 4))) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes("" . strtoupper(substr($PossibleBonkTag, 4, 4))) . '" at offset ' . $BonkTagOffset . ', found "' . GetId3_Lib_Helper::PrintHexBytes($TagHeaderTest) . '"'; return false; } $BonkTagName = substr($TagHeaderTest, 1, 4); $thisfile_bonk[$BonkTagName]['size'] = $BonkTagSize; $thisfile_bonk[$BonkTagName]['offset'] = $BonkTagOffset; $this->HandleBonkTags($BonkTagName); $NextTagEndOffset = $BonkTagOffset - 8; if ($NextTagEndOffset < $thisfile_bonk['dataoffset']) { if (empty($info['audio']['encoder'])) { $info['audio']['encoder'] = 'Extended BONK v0.9+'; } return true; } fseek($this->getid3->fp, $NextTagEndOffset, SEEK_SET); $PossibleBonkTag = fread($this->getid3->fp, 8); } } // seek-from-beginning method for v0.4 and v0.5 if (empty($thisfile_bonk['BONK'])) { fseek($this->getid3->fp, $thisfile_bonk['dataoffset'], SEEK_SET); do { $TagHeaderTest = fread($this->getid3->fp, 5); switch ($TagHeaderTest) { case "" . 'BONK': if (empty($info['audio']['encoder'])) { $info['audio']['encoder'] = 'BONK v0.4'; } break; case "" . 'INFO': $info['audio']['encoder'] = 'Extended BONK v0.5'; break; default: break 2; } $BonkTagName = substr($TagHeaderTest, 1, 4); $thisfile_bonk[$BonkTagName]['size'] = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset']; $thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset']; $this->HandleBonkTags($BonkTagName); } while (true); } // parse META block for v0.6 - v0.8 if (empty($thisfile_bonk['INFO']) && isset($thisfile_bonk['META']['tags']['info'])) { fseek($this->getid3->fp, $thisfile_bonk['META']['tags']['info'], SEEK_SET); $TagHeaderTest = fread($this->getid3->fp, 5); if ($TagHeaderTest == "" . 'INFO') { $info['audio']['encoder'] = 'Extended BONK v0.6 - v0.8'; $BonkTagName = substr($TagHeaderTest, 1, 4); $thisfile_bonk[$BonkTagName]['size'] = $thisfile_bonk['dataend'] - $thisfile_bonk['dataoffset']; $thisfile_bonk[$BonkTagName]['offset'] = $thisfile_bonk['dataoffset']; $this->HandleBonkTags($BonkTagName); } } if (empty($info['audio']['encoder'])) { $info['audio']['encoder'] = 'Extended BONK v0.9+'; } if (empty($thisfile_bonk['BONK'])) { unset($info['bonk']); } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; ///AH $info['ac3']['raw']['bsi'] = array(); $thisfile_ac3 =& $info['ac3']; $thisfile_ac3_raw =& $thisfile_ac3['raw']; $thisfile_ac3_raw_bsi =& $thisfile_ac3_raw['bsi']; // http://www.atsc.org/standards/a_52a.pdf $info['fileformat'] = 'ac3'; // An AC-3 serial coded audio bit stream is made up of a sequence of synchronization frames // Each synchronization frame contains 6 coded audio blocks (AB), each of which represent 256 // new audio samples per channel. A synchronization information (SI) header at the beginning // of each frame contains information needed to acquire and maintain synchronization. A // bit stream information (BSI) header follows SI, and contains parameters describing the coded // audio service. The coded audio blocks may be followed by an auxiliary data (Aux) field. At the // end of each frame is an error check field that includes a CRC word for error detection. An // additional CRC word is located in the SI header, the use of which, by a decoder, is optional. // // syncinfo() | bsi() | AB0 | AB1 | AB2 | AB3 | AB4 | AB5 | Aux | CRC // syncinfo() { // syncword 16 // crc1 16 // fscod 2 // frmsizecod 6 // } /* end of syncinfo */ $this->fseek($info['avdataoffset']); $this->AC3header['syncinfo'] = $this->fread(5); $magic = "\vw"; if (strpos($this->AC3header['syncinfo'], $magic) === 0) { $thisfile_ac3_raw['synchinfo']['synchword'] = $magic; $offset = 2; } else { if (!$this->isDependencyFor('matroska')) { unset($info['fileformat'], $info['ac3']); return $this->error('Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at offset ' . $info['avdataoffset'] . ', found "' . GetId3_Lib_Helper::PrintHexBytes(substr($this->AC3header['syncinfo'], 0, 2)) . '"'); } $offset = 0; $this->fseek(-2, SEEK_CUR); } $info['audio']['dataformat'] = 'ac3'; $info['audio']['bitrate_mode'] = 'cbr'; $info['audio']['lossless'] = false; $thisfile_ac3_raw['synchinfo']['crc1'] = GetId3_Lib_Helper::LittleEndian2Int(substr($this->AC3header['syncinfo'], $offset, 2)); $ac3_synchinfo_fscod_frmsizecod = GetId3_Lib_Helper::LittleEndian2Int(substr($this->AC3header['syncinfo'], $offset + 2, 1)); $thisfile_ac3_raw['synchinfo']['fscod'] = ($ac3_synchinfo_fscod_frmsizecod & 0xc0) >> 6; $thisfile_ac3_raw['synchinfo']['frmsizecod'] = $ac3_synchinfo_fscod_frmsizecod & 0x3f; $thisfile_ac3['sample_rate'] = self::sampleRateCodeLookup($thisfile_ac3_raw['synchinfo']['fscod']); if ($thisfile_ac3_raw['synchinfo']['fscod'] <= 3) { $info['audio']['sample_rate'] = $thisfile_ac3['sample_rate']; } $thisfile_ac3['frame_length'] = self::frameSizeLookup($thisfile_ac3_raw['synchinfo']['frmsizecod'], $thisfile_ac3_raw['synchinfo']['fscod']); $thisfile_ac3['bitrate'] = self::bitrateLookup($thisfile_ac3_raw['synchinfo']['frmsizecod']); $info['audio']['bitrate'] = $thisfile_ac3['bitrate']; $this->AC3header['bsi'] = GetId3_Lib_Helper::BigEndian2Bin($this->fread(15)); $ac3_bsi_offset = 0; $thisfile_ac3_raw_bsi['bsid'] = $this->readHeaderBSI(5); if ($thisfile_ac3_raw_bsi['bsid'] > 8) { // Decoders which can decode version 8 will thus be able to decode version numbers less than 8. // If this standard is extended by the addition of additional elements or features, a value of bsid greater than 8 will be used. // Decoders built to this version of the standard will not be able to decode versions with bsid greater than 8. $this->error('Bit stream identification is version ' . $thisfile_ac3_raw_bsi['bsid'] . ', but GetId3() only understands up to version 8'); unset($info['ac3']); return false; } $thisfile_ac3_raw_bsi['bsmod'] = $this->readHeaderBSI(3); $thisfile_ac3_raw_bsi['acmod'] = $this->readHeaderBSI(3); $thisfile_ac3['service_type'] = self::serviceTypeLookup($thisfile_ac3_raw_bsi['bsmod'], $thisfile_ac3_raw_bsi['acmod']); $ac3_coding_mode = self::audioCodingModeLookup($thisfile_ac3_raw_bsi['acmod']); foreach ($ac3_coding_mode as $key => $value) { $thisfile_ac3[$key] = $value; } switch ($thisfile_ac3_raw_bsi['acmod']) { case 0: case 1: $info['audio']['channelmode'] = 'mono'; break; case 3: case 4: $info['audio']['channelmode'] = 'stereo'; break; default: $info['audio']['channelmode'] = 'surround'; break; } $info['audio']['channels'] = $thisfile_ac3['num_channels']; if ($thisfile_ac3_raw_bsi['acmod'] & 0x1) { // If the lsb of acmod is a 1, center channel is in use and cmixlev follows in the bit stream. $thisfile_ac3_raw_bsi['cmixlev'] = $this->readHeaderBSI(2); $thisfile_ac3['center_mix_level'] = self::centerMixLevelLookup($thisfile_ac3_raw_bsi['cmixlev']); } if ($thisfile_ac3_raw_bsi['acmod'] & 0x4) { // If the msb of acmod is a 1, surround channels are in use and surmixlev follows in the bit stream. $thisfile_ac3_raw_bsi['surmixlev'] = $this->readHeaderBSI(2); $thisfile_ac3['surround_mix_level'] = self::surroundMixLevelLookup($thisfile_ac3_raw_bsi['surmixlev']); } if ($thisfile_ac3_raw_bsi['acmod'] == 0x2) { // When operating in the two channel mode, this 2-bit code indicates whether or not the program has been encoded in Dolby Surround. $thisfile_ac3_raw_bsi['dsurmod'] = $this->readHeaderBSI(2); $thisfile_ac3['dolby_surround_mode'] = self::dolbySurroundModeLookup($thisfile_ac3_raw_bsi['dsurmod']); } $thisfile_ac3_raw_bsi['lfeon'] = (bool) $this->readHeaderBSI(1); $thisfile_ac3['lfe_enabled'] = $thisfile_ac3_raw_bsi['lfeon']; if ($thisfile_ac3_raw_bsi['lfeon']) { //$info['audio']['channels']++; $info['audio']['channels'] .= '.1'; } $thisfile_ac3['channels_enabled'] = self::channelsEnabledLookup($thisfile_ac3_raw_bsi['acmod'], $thisfile_ac3_raw_bsi['lfeon']); // This indicates how far the average dialogue level is below digital 100 percent. Valid values are 1–31. // The value of 0 is reserved. The values of 1 to 31 are interpreted as -1 dB to -31 dB with respect to digital 100 percent. $thisfile_ac3_raw_bsi['dialnorm'] = $this->readHeaderBSI(5); $thisfile_ac3['dialogue_normalization'] = '-' . $thisfile_ac3_raw_bsi['dialnorm'] . 'dB'; $thisfile_ac3_raw_bsi['compre_flag'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['compre_flag']) { $thisfile_ac3_raw_bsi['compr'] = $this->readHeaderBSI(8); $thisfile_ac3['heavy_compression'] = self::heavyCompression($thisfile_ac3_raw_bsi['compr']); } $thisfile_ac3_raw_bsi['langcode_flag'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['langcode_flag']) { $thisfile_ac3_raw_bsi['langcod'] = $this->readHeaderBSI(8); } $thisfile_ac3_raw_bsi['audprodie'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['audprodie']) { $thisfile_ac3_raw_bsi['mixlevel'] = $this->readHeaderBSI(5); $thisfile_ac3_raw_bsi['roomtyp'] = $this->readHeaderBSI(2); $thisfile_ac3['mixing_level'] = 80 + $thisfile_ac3_raw_bsi['mixlevel'] . 'dB'; $thisfile_ac3['room_type'] = self::roomTypeLookup($thisfile_ac3_raw_bsi['roomtyp']); } if ($thisfile_ac3_raw_bsi['acmod'] == 0x0) { // If acmod is 0, then two completely independent program channels (dual mono) // are encoded into the bit stream, and are referenced as Ch1, Ch2. In this case, // a number of additional items are present in BSI or audblk to fully describe Ch2. // This indicates how far the average dialogue level is below digital 100 percent. Valid values are 1–31. // The value of 0 is reserved. The values of 1 to 31 are interpreted as -1 dB to -31 dB with respect to digital 100 percent. $thisfile_ac3_raw_bsi['dialnorm2'] = $this->readHeaderBSI(5); $thisfile_ac3['dialogue_normalization2'] = '-' . $thisfile_ac3_raw_bsi['dialnorm2'] . 'dB'; $thisfile_ac3_raw_bsi['compre_flag2'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['compre_flag2']) { $thisfile_ac3_raw_bsi['compr2'] = $this->readHeaderBSI(8); $thisfile_ac3['heavy_compression2'] = self::heavyCompression($thisfile_ac3_raw_bsi['compr2']); } $thisfile_ac3_raw_bsi['langcode_flag2'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['langcode_flag2']) { $thisfile_ac3_raw_bsi['langcod2'] = $this->readHeaderBSI(8); } $thisfile_ac3_raw_bsi['audprodie2'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['audprodie2']) { $thisfile_ac3_raw_bsi['mixlevel2'] = $this->readHeaderBSI(5); $thisfile_ac3_raw_bsi['roomtyp2'] = $this->readHeaderBSI(2); $thisfile_ac3['mixing_level2'] = 80 + $thisfile_ac3_raw_bsi['mixlevel2'] . 'dB'; $thisfile_ac3['room_type2'] = self::roomTypeLookup($thisfile_ac3_raw_bsi['roomtyp2']); } } $thisfile_ac3_raw_bsi['copyright'] = (bool) $this->readHeaderBSI(1); $thisfile_ac3_raw_bsi['original'] = (bool) $this->readHeaderBSI(1); $thisfile_ac3_raw_bsi['timecode1_flag'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['timecode1_flag']) { $thisfile_ac3_raw_bsi['timecode1'] = $this->readHeaderBSI(14); } $thisfile_ac3_raw_bsi['timecode2_flag'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['timecode2_flag']) { $thisfile_ac3_raw_bsi['timecode2'] = $this->readHeaderBSI(14); } $thisfile_ac3_raw_bsi['addbsi_flag'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['addbsi_flag']) { $thisfile_ac3_raw_bsi['addbsi_length'] = $this->readHeaderBSI(6); $this->AC3header['bsi'] .= GetId3_Lib_Helper::BigEndian2Bin($this->fread($thisfile_ac3_raw_bsi['addbsi_length'])); $thisfile_ac3_raw_bsi['addbsi_data'] = substr($this->AC3header['bsi'], $this->BSIoffset, $thisfile_ac3_raw_bsi['addbsi_length'] * 8); $this->BSIoffset += $thisfile_ac3_raw_bsi['addbsi_length'] * 8; } return true; }
/** * * @return boolean */ public function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $TSheader = fread($this->getid3->fp, 19); $magic = "G"; if (substr($TSheader, 0, 1) != $magic) { $info['error'][] = 'Expecting "' . GetId3_Lib_Helper::PrintHexBytes($magic) . '" at ' . $info['avdataoffset'] . ', found ' . GetId3_Lib_Helper::PrintHexBytes(substr($TSheader, 0, 1)) . ' instead.'; return false; } $info['fileformat'] = 'ts'; // http://en.wikipedia.org/wiki/.ts $offset = 0; $info['ts']['packet']['sync'] = GetId3_Lib_Helper::BigEndian2Int(substr($TSheader, $offset, 1)); $offset += 1; $pid_flags_raw = GetId3_Lib_Helper::BigEndian2Int(substr($TSheader, $offset, 2)); $offset += 2; $SAC_raw = GetId3_Lib_Helper::BigEndian2Int(substr($TSheader, $offset, 1)); $offset += 1; $info['ts']['packet']['flags']['transport_error_indicator'] = (bool) ($pid_flags_raw & 0x8000); // Set by demodulator if can't correct errors in the stream, to tell the demultiplexer that the packet has an uncorrectable error $info['ts']['packet']['flags']['payload_unit_start_indicator'] = (bool) ($pid_flags_raw & 0x4000); // 1 means start of PES data or PSI otherwise zero only. $info['ts']['packet']['flags']['transport_high_priority'] = (bool) ($pid_flags_raw & 0x2000); // 1 means higher priority than other packets with the same PID. $info['ts']['packet']['packet_id'] = ($pid_flags_raw & 0x1fff) >> 0; $info['ts']['packet']['raw']['scrambling_control'] = ($SAC_raw & 0xc0) >> 6; $info['ts']['packet']['flags']['adaption_field_exists'] = (bool) ($SAC_raw & 0x20); $info['ts']['packet']['flags']['payload_exists'] = (bool) ($SAC_raw & 0x10); $info['ts']['packet']['continuity_counter'] = ($SAC_raw & 0xf) >> 0; // Incremented only when a payload is present $info['ts']['packet']['scrambling_control'] = $this->TSscramblingControlLookup($info['ts']['packet']['raw']['scrambling_control']); if ($info['ts']['packet']['flags']['adaption_field_exists']) { $AdaptionField_raw = GetId3_Lib_Helper::BigEndian2Int(substr($TSheader, $offset, 2)); $offset += 2; $info['ts']['packet']['adaption']['field_length'] = ($AdaptionField_raw & 0xff00) >> 8; // Number of bytes in the adaptation field immediately following this byte $info['ts']['packet']['adaption']['flags']['discontinuity'] = (bool) ($AdaptionField_raw & 0x80); // Set to 1 if current TS packet is in a discontinuity state with respect to either the continuity counter or the program clock reference $info['ts']['packet']['adaption']['flags']['random_access'] = (bool) ($AdaptionField_raw & 0x40); // Set to 1 if the PES packet in this TS packet starts a video/audio sequence $info['ts']['packet']['adaption']['flags']['high_priority'] = (bool) ($AdaptionField_raw & 0x20); // 1 = higher priority $info['ts']['packet']['adaption']['flags']['pcr'] = (bool) ($AdaptionField_raw & 0x10); // 1 means adaptation field does contain a PCR field $info['ts']['packet']['adaption']['flags']['opcr'] = (bool) ($AdaptionField_raw & 0x8); // 1 means adaptation field does contain an OPCR field $info['ts']['packet']['adaption']['flags']['splice_point'] = (bool) ($AdaptionField_raw & 0x4); // 1 means presence of splice countdown field in adaptation field $info['ts']['packet']['adaption']['flags']['private_data'] = (bool) ($AdaptionField_raw & 0x2); // 1 means presence of private data bytes in adaptation field $info['ts']['packet']['adaption']['flags']['extension'] = (bool) ($AdaptionField_raw & 0x1); // 1 means presence of adaptation field extension if ($info['ts']['packet']['adaption']['flags']['pcr']) { $info['ts']['packet']['adaption']['raw']['pcr'] = GetId3_Lib_Helper::BigEndian2Int(substr($TSheader, $offset, 6)); $offset += 6; } if ($info['ts']['packet']['adaption']['flags']['opcr']) { $info['ts']['packet']['adaption']['raw']['opcr'] = GetId3_Lib_Helper::BigEndian2Int(substr($TSheader, $offset, 6)); $offset += 6; } } $info['error'][] = 'MPEG Transport Stream (.ts) parsing not enabled in this version of GetId3() [' . $this->getid3->version() . ']'; return false; }