public function Analyze() { $getid3 = $this->getid3; fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET); $au_header = fread($getid3->fp, 8); // Magic bytes: .snd $getid3->info['au'] = array(); $info_au =& $getid3->info['au']; $getid3->info['fileformat'] = 'au'; $getid3->info['audio']['dataformat'] = 'au'; $getid3->info['audio']['bitrate_mode'] = 'cbr'; $info_au['encoding'] = 'ISO-8859-1'; $info_au['header_length'] = getid3_lib::BigEndian2Int(substr($au_header, 4, 4)); $au_header .= fread($getid3->fp, $info_au['header_length'] - 8); $getid3->info['avdataoffset'] += $info_au['header_length']; getid3_lib::ReadSequence('BigEndian2Int', $info_au, $au_header, 8, array('data_size' => 4, 'data_format_id' => 4, 'sample_rate' => 4, 'channels' => 4)); $info_au['comments']['comment'][] = trim(substr($au_header, 24)); $info_au['data_format'] = getid3_au::AUdataFormatNameLookup($info_au['data_format_id']); $info_au['used_bits_per_sample'] = getid3_au::AUdataFormatUsedBitsPerSampleLookup($info_au['data_format_id']); if ($info_au['bits_per_sample'] = getid3_au::AUdataFormatBitsPerSampleLookup($info_au['data_format_id'])) { $getid3->info['audio']['bits_per_sample'] = $info_au['bits_per_sample']; } else { unset($info_au['bits_per_sample']); } $getid3->info['audio']['sample_rate'] = $info_au['sample_rate']; $getid3->info['audio']['channels'] = $info_au['channels']; if ($getid3->info['avdataoffset'] + $info_au['data_size'] > $getid3->info['avdataend']) { $getid3->warning('Possible truncated file - expecting "' . $info_au['data_size'] . '" bytes of audio data, only found ' . ($getid3->info['avdataend'] - $getid3->info['avdataoffset']) . ' bytes"'); } $getid3->info['playtime_seconds'] = $info_au['data_size'] / ($info_au['sample_rate'] * $info_au['channels'] * ($info_au['used_bits_per_sample'] / 8)); $getid3->info['audio']['bitrate'] = $info_au['data_size'] * 8 / $getid3->info['playtime_seconds']; return true; }
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 ' . $info['avdataoffset'] . ', found "' . getid3_lib::PrintHexBytes(substr($SZIPHeader, 0, 4)) . '"'; return false; } $info['fileformat'] = 'szip'; $info['szip']['major_version'] = getid3_lib::BigEndian2Int(substr($SZIPHeader, 4, 1)); $info['szip']['minor_version'] = getid3_lib::BigEndian2Int(substr($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': $BHheaderbytes = getid3_lib::BigEndian2Int(fread($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; $BHdataArray['filelength'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 3)); $BHheaderoffset += 3; $BHdataArray['access_flags'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 2)); $BHheaderoffset += 2; $BHdataArray['creation_time'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4)); $BHheaderoffset += 4; $BHdataArray['modification_time'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4)); $BHheaderoffset += 4; $BHdataArray['access_time'] = getid3_lib::BigEndian2Int(substr($BHheaderdata, $BHheaderoffset, 4)); $BHheaderoffset += 4; $info['szip']['BH'][] = $BHdataArray; } break; default: break 2; } } return true; }
public function Analyze() { $getid3 = $this->getid3; fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET); $szip_rkau = fread($getid3->fp, 6); // Magic bytes: 'SZ'."\x0A\x04" $getid3->info['fileformat'] = 'szip'; $getid3->info['szip']['major_version'] = getid3_lib::BigEndian2Int(substr($szip_rkau, 4, 1)); $getid3->info['szip']['minor_version'] = getid3_lib::BigEndian2Int(substr($szip_rkau, 5, 1)); while (!feof($getid3->fp)) { $next_block_id = fread($getid3->fp, 2); switch ($next_block_id) { case 'SZ': // Note that szip files can be concatenated, this has the same effect as // concatenating the files. this also means that global header blocks // might be present between directory/data blocks. fseek($getid3->fp, 4, SEEK_CUR); break; case 'BH': $bh_header_bytes = getid3_lib::BigEndian2Int(fread($getid3->fp, 3)); $bh_header_data = fread($getid3->fp, $bh_header_bytes); $bh_header_offset = 0; while (strpos($bh_header_data, "", $bh_header_offset) > 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) $bh_data_array['filename'] = substr($bh_header_data, $bh_header_offset, strcspn($bh_header_data, "")); $bh_header_offset += strlen($bh_data_array['filename']) + 1; $bh_data_array['owner'] = substr($bh_header_data, $bh_header_offset, strcspn($bh_header_data, "")); $bh_header_offset += strlen($bh_data_array['owner']) + 1; $bh_data_array['group'] = substr($bh_header_data, $bh_header_offset, strcspn($bh_header_data, "")); $bh_header_offset += strlen($bh_data_array['group']) + 1; $bh_data_array['filelength'] = getid3_lib::BigEndian2Int(substr($bh_header_data, $bh_header_offset, 3)); $bh_header_offset += 3; $bh_data_array['access_flags'] = getid3_lib::BigEndian2Int(substr($bh_header_data, $bh_header_offset, 2)); $bh_header_offset += 2; $bh_data_array['creation_time'] = getid3_lib::BigEndian2Int(substr($bh_header_data, $bh_header_offset, 4)); $bh_header_offset += 4; $bh_data_array['modification_time'] = getid3_lib::BigEndian2Int(substr($bh_header_data, $bh_header_offset, 4)); $bh_header_offset += 4; $bh_data_array['access_time'] = getid3_lib::BigEndian2Int(substr($bh_header_data, $bh_header_offset, 4)); $bh_header_offset += 4; $getid3->info['szip']['BH'][] = $bh_data_array; } break; default: break 2; } } return true; }
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) { $info['error'][] = 'Expecting "' . getid3_lib::PrintHexBytes($magic) . '" (".snd") at offset ' . $info['avdataoffset'] . ', found "' . getid3_lib::PrintHexBytes(substr($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'; $thisfile_au['header_length'] = getid3_lib::BigEndian2Int(substr($AUheader, 4, 4)); $AUheader .= fread($this->getid3->fp, $thisfile_au['header_length'] - 8); $info['avdataoffset'] += $thisfile_au['header_length']; $thisfile_au['data_size'] = getid3_lib::BigEndian2Int(substr($AUheader, 8, 4)); $thisfile_au['data_format_id'] = getid3_lib::BigEndian2Int(substr($AUheader, 12, 4)); $thisfile_au['sample_rate'] = getid3_lib::BigEndian2Int(substr($AUheader, 16, 4)); $thisfile_au['channels'] = getid3_lib::BigEndian2Int(substr($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 / $info['playtime_seconds']; return true; }
function EBML2Int($EBMLstring) { // http://matroska.org/specs/ // Element ID coded with an UTF-8 like system: // 1xxx xxxx - Class A IDs (2^7 -2 possible values) (base 0x8X) // 01xx xxxx xxxx xxxx - Class B IDs (2^14-2 possible values) (base 0x4X 0xXX) // 001x xxxx xxxx xxxx xxxx xxxx - Class C IDs (2^21-2 possible values) (base 0x2X 0xXX 0xXX) // 0001 xxxx xxxx xxxx xxxx xxxx xxxx xxxx - Class D IDs (2^28-2 possible values) (base 0x1X 0xXX 0xXX 0xXX) // Values with all x at 0 and 1 are reserved (hence the -2). // Data size, in octets, is also coded with an UTF-8 like system : // 1xxx xxxx - value 0 to 2^7-2 // 01xx xxxx xxxx xxxx - value 0 to 2^14-2 // 001x xxxx xxxx xxxx xxxx xxxx - value 0 to 2^21-2 // 0001 xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^28-2 // 0000 1xxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^35-2 // 0000 01xx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^42-2 // 0000 001x xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^49-2 // 0000 0001 xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^56-2 if (0x80 & ord($EBMLstring[0])) { $EBMLstring[0] = chr(ord($EBMLstring[0]) & 0x7f); } elseif (0x40 & ord($EBMLstring[0])) { $EBMLstring[0] = chr(ord($EBMLstring[0]) & 0x3f); } elseif (0x20 & ord($EBMLstring[0])) { $EBMLstring[0] = chr(ord($EBMLstring[0]) & 0x1f); } elseif (0x10 & ord($EBMLstring[0])) { $EBMLstring[0] = chr(ord($EBMLstring[0]) & 0xf); } elseif (0x8 & ord($EBMLstring[0])) { $EBMLstring[0] = chr(ord($EBMLstring[0]) & 0x7); } elseif (0x4 & ord($EBMLstring[0])) { $EBMLstring[0] = chr(ord($EBMLstring[0]) & 0x3); } elseif (0x2 & ord($EBMLstring[0])) { $EBMLstring[0] = chr(ord($EBMLstring[0]) & 0x1); } elseif (0x1 & ord($EBMLstring[0])) { $EBMLstring[0] = chr(ord($EBMLstring[0]) & 0x0); } else { return false; } return getid3_lib::BigEndian2Int($EBMLstring); }
function getid3_dts(&$fd, &$ThisFileInfo) { // Specs taken from "DTS Coherent Acoustics;Core and Extensions, ETSI TS 102 114 V1.2.1 (2002-12)" // (http://pda.etsi.org/pda/queryform.asp) // With thanks to Gambit <*****@*****.**> http://mac.sourceforge.net/atl/ $ThisFileInfo['fileformat'] = 'dts'; fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); $DTSheader = fread($fd, 16); $ThisFileInfo['dts']['raw']['magic'] = getid3_lib::BigEndian2Int(substr($DTSheader, 0, 4)); if ($ThisFileInfo['dts']['raw']['magic'] != 0x7ffe8001) { $ThisFileInfo['error'][] = 'Expecting "0x7FFE8001" at offset ' . $ThisFileInfo['avdataoffset'] . ', found "0x' . str_pad(strtoupper(dechex($ThisFileInfo['dts']['raw']['magic'])), 8, '0', STR_PAD_LEFT) . '"'; unset($ThisFileInfo['fileformat']); unset($ThisFileInfo['dts']); return false; } $fhBS = getid3_lib::BigEndian2Bin(substr($DTSheader, 4, 12)); $bsOffset = 0; $ThisFileInfo['dts']['raw']['frame_type'] = bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['raw']['deficit_samples'] = bindec(substr($fhBS, $bsOffset, 5)); $bsOffset += 5; $ThisFileInfo['dts']['flags']['crc_present'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['raw']['pcm_sample_blocks'] = bindec(substr($fhBS, $bsOffset, 7)); $bsOffset += 7; $ThisFileInfo['dts']['raw']['frame_byte_size'] = bindec(substr($fhBS, $bsOffset, 14)); $bsOffset += 14; $ThisFileInfo['dts']['raw']['channel_arrangement'] = bindec(substr($fhBS, $bsOffset, 6)); $bsOffset += 6; $ThisFileInfo['dts']['raw']['sample_frequency'] = bindec(substr($fhBS, $bsOffset, 4)); $bsOffset += 4; $ThisFileInfo['dts']['raw']['bitrate'] = bindec(substr($fhBS, $bsOffset, 5)); $bsOffset += 5; $ThisFileInfo['dts']['flags']['embedded_downmix'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['flags']['dynamicrange'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['flags']['timestamp'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['flags']['auxdata'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['flags']['hdcd'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['raw']['extension_audio'] = bindec(substr($fhBS, $bsOffset, 3)); $bsOffset += 3; $ThisFileInfo['dts']['flags']['extended_coding'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['flags']['audio_sync_insertion'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['raw']['lfe_effects'] = bindec(substr($fhBS, $bsOffset, 2)); $bsOffset += 2; $ThisFileInfo['dts']['flags']['predictor_history'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; if ($ThisFileInfo['dts']['flags']['crc_present']) { $ThisFileInfo['dts']['raw']['crc16'] = bindec(substr($fhBS, $bsOffset, 16)); $bsOffset += 16; } $ThisFileInfo['dts']['flags']['mri_perfect_reconst'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['raw']['encoder_soft_version'] = bindec(substr($fhBS, $bsOffset, 4)); $bsOffset += 4; $ThisFileInfo['dts']['raw']['copy_history'] = bindec(substr($fhBS, $bsOffset, 2)); $bsOffset += 2; $ThisFileInfo['dts']['raw']['bits_per_sample'] = bindec(substr($fhBS, $bsOffset, 2)); $bsOffset += 2; $ThisFileInfo['dts']['flags']['surround_es'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['flags']['front_sum_diff'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['flags']['surround_sum_diff'] = (bool) bindec(substr($fhBS, $bsOffset, 1)); $bsOffset += 1; $ThisFileInfo['dts']['raw']['dialog_normalization'] = bindec(substr($fhBS, $bsOffset, 4)); $bsOffset += 4; $ThisFileInfo['dts']['bitrate'] = $this->DTSbitrateLookup($ThisFileInfo['dts']['raw']['bitrate']); $ThisFileInfo['dts']['bits_per_sample'] = $this->DTSbitPerSampleLookup($ThisFileInfo['dts']['raw']['bits_per_sample']); $ThisFileInfo['dts']['sample_rate'] = $this->DTSsampleRateLookup($ThisFileInfo['dts']['raw']['sample_frequency']); $ThisFileInfo['dts']['dialog_normalization'] = $this->DTSdialogNormalization($ThisFileInfo['dts']['raw']['dialog_normalization'], $ThisFileInfo['dts']['raw']['encoder_soft_version']); $ThisFileInfo['dts']['flags']['lossless'] = $ThisFileInfo['dts']['raw']['bitrate'] == 31 ? true : false; $ThisFileInfo['dts']['bitrate_mode'] = $ThisFileInfo['dts']['raw']['bitrate'] == 30 ? 'vbr' : 'cbr'; $ThisFileInfo['dts']['channels'] = $this->DTSnumChannelsLookup($ThisFileInfo['dts']['raw']['channel_arrangement']); $ThisFileInfo['dts']['channel_arrangement'] = $this->DTSchannelArrangementLookup($ThisFileInfo['dts']['raw']['channel_arrangement']); $ThisFileInfo['audio']['dataformat'] = 'dts'; $ThisFileInfo['audio']['lossless'] = $ThisFileInfo['dts']['flags']['lossless']; $ThisFileInfo['audio']['bitrate_mode'] = $ThisFileInfo['dts']['bitrate_mode']; $ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['dts']['bits_per_sample']; $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['dts']['sample_rate']; $ThisFileInfo['audio']['channels'] = $ThisFileInfo['dts']['channels']; $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['dts']['bitrate']; if (isset($ThisFileInfo['avdataend'])) { $ThisFileInfo['playtime_seconds'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / ($ThisFileInfo['dts']['bitrate'] / 8); } return true; }
function ParseID3v2Frame(&$parsedFrame, &$ThisFileInfo) { // shortcuts $id3v2_majorversion = $ThisFileInfo['id3v2']['majorversion']; $parsedFrame['framenamelong'] = $this->FrameNameLongLookup($parsedFrame['frame_name']); if (empty($parsedFrame['framenamelong'])) { unset($parsedFrame['framenamelong']); } $parsedFrame['framenameshort'] = $this->FrameNameShortLookup($parsedFrame['frame_name']); if (empty($parsedFrame['framenameshort'])) { unset($parsedFrame['framenameshort']); } if ($id3v2_majorversion >= 3) { // frame flags are not part of the ID3v2.2 standard if ($id3v2_majorversion == 3) { // Frame Header Flags // %abc00000 %ijk00000 $parsedFrame['flags']['TagAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x8000); // a - Tag alter preservation $parsedFrame['flags']['FileAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x4000); // b - File alter preservation $parsedFrame['flags']['ReadOnly'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x2000); // c - Read only $parsedFrame['flags']['compression'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x80); // i - Compression $parsedFrame['flags']['Encryption'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x40); // j - Encryption $parsedFrame['flags']['GroupingIdentity'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x20); // k - Grouping identity } elseif ($id3v2_majorversion == 4) { // Frame Header Flags // %0abc0000 %0h00kmnp $parsedFrame['flags']['TagAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x4000); // a - Tag alter preservation $parsedFrame['flags']['FileAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x2000); // b - File alter preservation $parsedFrame['flags']['ReadOnly'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x1000); // c - Read only $parsedFrame['flags']['GroupingIdentity'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x40); // h - Grouping identity $parsedFrame['flags']['compression'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x8); // k - Compression $parsedFrame['flags']['Encryption'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x4); // m - Encryption $parsedFrame['flags']['Unsynchronisation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x2); // n - Unsynchronisation $parsedFrame['flags']['DataLengthIndicator'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x1); // p - Data length indicator // Frame-level de-unsynchronisation - ID3v2.4 if ($parsedFrame['flags']['Unsynchronisation']) { $parsedFrame['data'] = $this->DeUnsynchronise($parsedFrame['data']); } } // Frame-level de-compression if ($parsedFrame['flags']['compression']) { $parsedFrame['decompressed_size'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 0, 4)); if (!function_exists('gzuncompress')) { $ThisFileInfo['warning'][] = 'gzuncompress() support required to decompress ID3v2 frame "' . $parsedFrame['frame_name'] . '"'; } elseif ($decompresseddata = @gzuncompress(substr($parsedFrame['data'], 4))) { $parsedFrame['data'] = $decompresseddata; } else { $ThisFileInfo['warning'][] = 'gzuncompress() failed on compressed contents of ID3v2 frame "' . $parsedFrame['frame_name'] . '"'; } } } if (isset($parsedFrame['datalength']) && $parsedFrame['datalength'] == 0) { $warning = 'Frame "' . $parsedFrame['frame_name'] . '" at offset ' . $parsedFrame['dataoffset'] . ' has no data portion'; switch ($parsedFrame['frame_name']) { case 'WCOM': $warning .= ' (this is known to happen with files tagged by RioPort)'; break; default: break; } $ThisFileInfo['warning'][] = $warning; } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'UFID' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'UFI') { // 4.1 UFI Unique file identifier // There may be more than one 'UFID' frame in a tag, // but only one with the same 'Owner identifier'. // <Header for 'Unique file identifier', ID: 'UFID'> // Owner identifier <text string> $00 // Identifier <up to 64 bytes binary data> $frame_terminatorpos = strpos($parsedFrame['data'], ""); $frame_idstring = substr($parsedFrame['data'], 0, $frame_terminatorpos); $parsedFrame['ownerid'] = $frame_idstring; $parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen("")); unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'TXXX' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'TXX') { // 4.2.2 TXX User defined text information frame // There may be more than one 'TXXX' frame in each tag, // but only one with the same description. // <Header for 'User defined text information frame', ID: 'TXXX'> // Text encoding $xx // Description <text string according to encoding> $00 (00) // Value <text string according to encoding> $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $frame_terminatorpos = @strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset); if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // @strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); $parsedFrame['description'] = $frame_description; $parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding))); if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) { $ThisFileInfo['id3v2']['comments'][$parsedFrame['framenameshort']][] = trim(getid3_lib::iconv_fallback($parsedFrame['encoding'], $ThisFileInfo['id3v2']['encoding'], $parsedFrame['data'])); } unset($parsedFrame['data']); } elseif ($parsedFrame['frame_name'][0] == 'T') { // 4.2. T??[?] Text information frame // There may only be one text information frame of its kind in an tag. // <Header for 'Text information frame', ID: 'T000' - 'TZZZ', // excluding 'TXXX' described in 4.2.6.> // Text encoding $xx // Information <text string(s) according to encoding> $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset); $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) { // remove possible terminating \x00 (put by encoding id or software bug) $string = getid3_lib::iconv_fallback($parsedFrame['encoding'], $ThisFileInfo['id3v2']['encoding'], $parsedFrame['data']); if ($string[strlen($string) - 1] == "") { $string = substr($string, 0, strlen($string) - 1); } $ThisFileInfo['id3v2']['comments'][$parsedFrame['framenameshort']][] = $string; unset($string); } } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'WXXX' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'WXX') { // 4.3.2 WXX User defined URL link frame // There may be more than one 'WXXX' frame in each tag, // but only one with the same description // <Header for 'User defined URL link frame', ID: 'WXXX'> // Text encoding $xx // Description <text string according to encoding> $00 (00) // URL <text string> $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $frame_terminatorpos = @strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset); if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // @strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding))); $frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding)); if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } if ($frame_terminatorpos) { // there are null bytes after the data - this is not according to spec // only use data up to first null byte $frame_urldata = (string) substr($parsedFrame['data'], 0, $frame_terminatorpos); } else { // no null bytes following data, just use all data $frame_urldata = (string) $parsedFrame['data']; } $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); $parsedFrame['url'] = $frame_urldata; $parsedFrame['description'] = $frame_description; if (!empty($parsedFrame['framenameshort']) && $parsedFrame['url']) { $ThisFileInfo['id3v2']['comments'][$parsedFrame['framenameshort']][] = getid3_lib::iconv_fallback($parsedFrame['encoding'], $ThisFileInfo['id3v2']['encoding'], $parsedFrame['url']); } unset($parsedFrame['data']); } elseif ($parsedFrame['frame_name'][0] == 'W') { // 4.3. W??? URL link frames // There may only be one URL link frame of its kind in a tag, // except when stated otherwise in the frame description // <Header for 'URL link frame', ID: 'W000' - 'WZZZ', excluding 'WXXX' // described in 4.3.2.> // URL <text string> $parsedFrame['url'] = trim($parsedFrame['data']); if (!empty($parsedFrame['framenameshort']) && $parsedFrame['url']) { $ThisFileInfo['id3v2']['comments'][$parsedFrame['framenameshort']][] = $parsedFrame['url']; } unset($parsedFrame['data']); } elseif ($id3v2_majorversion == 3 && $parsedFrame['frame_name'] == 'IPLS' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'IPL') { // 4.4 IPL Involved people list (ID3v2.2 only) // There may only be one 'IPL' frame in each tag // <Header for 'User defined URL link frame', ID: 'IPL'> // Text encoding $xx // People list strings <textstrings> $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($parsedFrame['encodingid']); $parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset); if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) { $ThisFileInfo['id3v2']['comments'][$parsedFrame['framenameshort']][] = getid3_lib::iconv_fallback($parsedFrame['encoding'], $ThisFileInfo['id3v2']['encoding'], $parsedFrame['data']); } } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'MCDI' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'MCI') { // 4.5 MCI Music CD identifier // There may only be one 'MCDI' frame in each tag // <Header for 'Music CD identifier', ID: 'MCDI'> // CD TOC <binary data> if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) { $ThisFileInfo['id3v2']['comments'][$parsedFrame['framenameshort']][] = $parsedFrame['data']; } } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'ETCO' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'ETC') { // 4.6 ETC Event timing codes // There may only be one 'ETCO' frame in each tag // <Header for 'Event timing codes', ID: 'ETCO'> // Time stamp format $xx // Where time stamp format is: // $01 (32-bit value) MPEG frames from beginning of file // $02 (32-bit value) milliseconds from beginning of file // Followed by a list of key events in the following format: // Type of event $xx // Time stamp $xx (xx ...) // The 'Time stamp' is set to zero if directly at the beginning of the sound // or after the previous event. All events MUST be sorted in chronological order. $frame_offset = 0; $parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); while ($frame_offset < strlen($parsedFrame['data'])) { $parsedFrame['typeid'] = substr($parsedFrame['data'], $frame_offset++, 1); $parsedFrame['type'] = $this->ETCOEventLookup($parsedFrame['typeid']); $parsedFrame['timestamp'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4)); $frame_offset += 4; } unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'MLLT' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'MLL') { // 4.7 MLL MPEG location lookup table // There may only be one 'MLLT' frame in each tag // <Header for 'Location lookup table', ID: 'MLLT'> // MPEG frames between reference $xx xx // Bytes between reference $xx xx xx // Milliseconds between reference $xx xx xx // Bits for bytes deviation $xx // Bits for milliseconds dev. $xx // Then for every reference the following data is included; // Deviation in bytes %xxx.... // Deviation in milliseconds %xxx.... $frame_offset = 0; $parsedFrame['framesbetweenreferences'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 0, 2)); $parsedFrame['bytesbetweenreferences'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 2, 3)); $parsedFrame['msbetweenreferences'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 5, 3)); $parsedFrame['bitsforbytesdeviation'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 8, 1)); $parsedFrame['bitsformsdeviation'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 9, 1)); $parsedFrame['data'] = substr($parsedFrame['data'], 10); while ($frame_offset < strlen($parsedFrame['data'])) { $deviationbitstream .= getid3_lib::BigEndian2Bin(substr($parsedFrame['data'], $frame_offset++, 1)); } $reference_counter = 0; while (strlen($deviationbitstream) > 0) { $parsedFrame[$reference_counter]['bytedeviation'] = bindec(substr($deviationbitstream, 0, $parsedFrame['bitsforbytesdeviation'])); $parsedFrame[$reference_counter]['msdeviation'] = bindec(substr($deviationbitstream, $parsedFrame['bitsforbytesdeviation'], $parsedFrame['bitsformsdeviation'])); $deviationbitstream = substr($deviationbitstream, $parsedFrame['bitsforbytesdeviation'] + $parsedFrame['bitsformsdeviation']); $reference_counter++; } unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'SYTC' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'STC') { // 4.8 STC Synchronised tempo codes // There may only be one 'SYTC' frame in each tag // <Header for 'Synchronised tempo codes', ID: 'SYTC'> // Time stamp format $xx // Tempo data <binary data> // Where time stamp format is: // $01 (32-bit value) MPEG frames from beginning of file // $02 (32-bit value) milliseconds from beginning of file $frame_offset = 0; $parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $timestamp_counter = 0; while ($frame_offset < strlen($parsedFrame['data'])) { $parsedFrame[$timestamp_counter]['tempo'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($parsedFrame[$timestamp_counter]['tempo'] == 255) { $parsedFrame[$timestamp_counter]['tempo'] += ord(substr($parsedFrame['data'], $frame_offset++, 1)); } $parsedFrame[$timestamp_counter]['timestamp'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4)); $frame_offset += 4; $timestamp_counter++; } unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'USLT' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'ULT') { // 4.9 ULT Unsynchronised lyric/text transcription // There may be more than one 'Unsynchronised lyrics/text transcription' frame // in each tag, but only one with the same language and content descriptor. // <Header for 'Unsynchronised lyrics/text transcription', ID: 'USLT'> // Text encoding $xx // Language $xx xx xx // Content descriptor <text string according to encoding> $00 (00) // Lyrics/text <full text string according to encoding> $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $frame_language = substr($parsedFrame['data'], $frame_offset, 3); $frame_offset += 3; $frame_terminatorpos = @strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset); if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // @strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding))); $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); $parsedFrame['data'] = $parsedFrame['data']; $parsedFrame['language'] = $frame_language; $parsedFrame['languagename'] = $this->LanguageLookup($frame_language, false); $parsedFrame['description'] = $frame_description; if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) { $ThisFileInfo['id3v2']['comments'][$parsedFrame['framenameshort']][] = getid3_lib::iconv_fallback($parsedFrame['encoding'], $ThisFileInfo['id3v2']['encoding'], $parsedFrame['data']); } unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'SYLT' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'SLT') { // 4.10 SLT Synchronised lyric/text // There may be more than one 'SYLT' frame in each tag, // but only one with the same language and content descriptor. // <Header for 'Synchronised lyrics/text', ID: 'SYLT'> // Text encoding $xx // Language $xx xx xx // Time stamp format $xx // $01 (32-bit value) MPEG frames from beginning of file // $02 (32-bit value) milliseconds from beginning of file // Content type $xx // Content descriptor <text string according to encoding> $00 (00) // Terminated text to be synced (typically a syllable) // Sync identifier (terminator to above string) $00 (00) // Time stamp $xx (xx ...) $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $frame_language = substr($parsedFrame['data'], $frame_offset, 3); $frame_offset += 3; $parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['contenttypeid'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['contenttype'] = $this->SYTLContentTypeLookup($parsedFrame['contenttypeid']); $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); $parsedFrame['language'] = $frame_language; $parsedFrame['languagename'] = $this->LanguageLookup($frame_language, false); $timestampindex = 0; $frame_remainingdata = substr($parsedFrame['data'], $frame_offset); while (strlen($frame_remainingdata)) { $frame_offset = 0; $frame_terminatorpos = strpos($frame_remainingdata, $this->TextEncodingTerminatorLookup($frame_textencoding)); if ($frame_terminatorpos === false) { $frame_remainingdata = ''; } else { if (ord(substr($frame_remainingdata, $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $parsedFrame['lyrics'][$timestampindex]['data'] = substr($frame_remainingdata, $frame_offset, $frame_terminatorpos - $frame_offset); $frame_remainingdata = substr($frame_remainingdata, $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding))); if ($timestampindex == 0 && ord($frame_remainingdata[0]) != 0) { // timestamp probably omitted for first data item } else { $parsedFrame['lyrics'][$timestampindex]['timestamp'] = getid3_lib::BigEndian2Int(substr($frame_remainingdata, 0, 4)); $frame_remainingdata = substr($frame_remainingdata, 4); } $timestampindex++; } } unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'COMM' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'COM') { // 4.11 COM Comments // There may be more than one comment frame in each tag, // but only one with the same language and content descriptor. // <Header for 'Comment', ID: 'COMM'> // Text encoding $xx // Language $xx xx xx // Short content descrip. <text string according to encoding> $00 (00) // The actual text <full text string according to encoding> if (strlen($parsedFrame['data']) < 5) { $ThisFileInfo['warning'][] = 'Invalid data (too short) for "' . $parsedFrame['frame_name'] . '" frame at offset ' . $parsedFrame['dataoffset']; } else { $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $frame_language = substr($parsedFrame['data'], $frame_offset, 3); $frame_offset += 3; $frame_terminatorpos = @strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset); if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // @strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $frame_text = (string) substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding))); $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); $parsedFrame['language'] = $frame_language; $parsedFrame['languagename'] = $this->LanguageLookup($frame_language, false); $parsedFrame['description'] = $frame_description; $parsedFrame['data'] = $frame_text; if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) { $ThisFileInfo['id3v2']['comments'][$parsedFrame['framenameshort']][] = getid3_lib::iconv_fallback($parsedFrame['encoding'], $ThisFileInfo['id3v2']['encoding'], $parsedFrame['data']); } } } elseif ($id3v2_majorversion >= 4 && $parsedFrame['frame_name'] == 'RVA2') { // 4.11 RVA2 Relative volume adjustment (2) (ID3v2.4+ only) // There may be more than one 'RVA2' frame in each tag, // but only one with the same identification string // <Header for 'Relative volume adjustment (2)', ID: 'RVA2'> // Identification <text string> $00 // The 'identification' string is used to identify the situation and/or // device where this adjustment should apply. The following is then // repeated for every channel: // Type of channel $xx // Volume adjustment $xx xx // Bits representing peak $xx // Peak volume $xx (xx ...) $frame_terminatorpos = strpos($parsedFrame['data'], ""); $frame_idstring = substr($parsedFrame['data'], 0, $frame_terminatorpos); if (ord($frame_idstring) === 0) { $frame_idstring = ''; } $frame_remainingdata = substr($parsedFrame['data'], $frame_terminatorpos + strlen("")); $parsedFrame['description'] = $frame_idstring; while (strlen($frame_remainingdata)) { $frame_offset = 0; $frame_channeltypeid = ord(substr($frame_remainingdata, $frame_offset++, 1)); $parsedFrame[$frame_channeltypeid]['channeltypeid'] = $frame_channeltypeid; $parsedFrame[$frame_channeltypeid]['channeltype'] = $this->RVA2ChannelTypeLookup($frame_channeltypeid); $parsedFrame[$frame_channeltypeid]['volumeadjust'] = getid3_lib::BigEndian2Int(substr($frame_remainingdata, $frame_offset, 2), false, true); // 16-bit signed $frame_offset += 2; $parsedFrame[$frame_channeltypeid]['bitspeakvolume'] = ord(substr($frame_remainingdata, $frame_offset++, 1)); $frame_bytespeakvolume = ceil($parsedFrame[$frame_channeltypeid]['bitspeakvolume'] / 8); $parsedFrame[$frame_channeltypeid]['peakvolume'] = getid3_lib::BigEndian2Int(substr($frame_remainingdata, $frame_offset, $frame_bytespeakvolume)); $frame_remainingdata = substr($frame_remainingdata, $frame_offset + $frame_bytespeakvolume); } unset($parsedFrame['data']); } elseif ($id3v2_majorversion == 3 && $parsedFrame['frame_name'] == 'RVAD' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'RVA') { // 4.12 RVA Relative volume adjustment (ID3v2.2 only) // There may only be one 'RVA' frame in each tag // <Header for 'Relative volume adjustment', ID: 'RVA'> // ID3v2.2 => Increment/decrement %000000ba // ID3v2.3 => Increment/decrement %00fedcba // Bits used for volume descr. $xx // Relative volume change, right $xx xx (xx ...) // a // Relative volume change, left $xx xx (xx ...) // b // Peak volume right $xx xx (xx ...) // Peak volume left $xx xx (xx ...) // ID3v2.3 only, optional (not present in ID3v2.2): // Relative volume change, right back $xx xx (xx ...) // c // Relative volume change, left back $xx xx (xx ...) // d // Peak volume right back $xx xx (xx ...) // Peak volume left back $xx xx (xx ...) // ID3v2.3 only, optional (not present in ID3v2.2): // Relative volume change, center $xx xx (xx ...) // e // Peak volume center $xx xx (xx ...) // ID3v2.3 only, optional (not present in ID3v2.2): // Relative volume change, bass $xx xx (xx ...) // f // Peak volume bass $xx xx (xx ...) $frame_offset = 0; $frame_incrdecrflags = getid3_lib::BigEndian2Bin(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['incdec']['right'] = (bool) substr($frame_incrdecrflags, 6, 1); $parsedFrame['incdec']['left'] = (bool) substr($frame_incrdecrflags, 7, 1); $parsedFrame['bitsvolume'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $frame_bytesvolume = ceil($parsedFrame['bitsvolume'] / 8); $parsedFrame['volumechange']['right'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); if ($parsedFrame['incdec']['right'] === false) { $parsedFrame['volumechange']['right'] *= -1; } $frame_offset += $frame_bytesvolume; $parsedFrame['volumechange']['left'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); if ($parsedFrame['incdec']['left'] === false) { $parsedFrame['volumechange']['left'] *= -1; } $frame_offset += $frame_bytesvolume; $parsedFrame['peakvolume']['right'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; $parsedFrame['peakvolume']['left'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; if ($id3v2_majorversion == 3) { $parsedFrame['data'] = substr($parsedFrame['data'], $frame_offset); if (strlen($parsedFrame['data']) > 0) { $parsedFrame['incdec']['rightrear'] = (bool) substr($frame_incrdecrflags, 4, 1); $parsedFrame['incdec']['leftrear'] = (bool) substr($frame_incrdecrflags, 5, 1); $parsedFrame['volumechange']['rightrear'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); if ($parsedFrame['incdec']['rightrear'] === false) { $parsedFrame['volumechange']['rightrear'] *= -1; } $frame_offset += $frame_bytesvolume; $parsedFrame['volumechange']['leftrear'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); if ($parsedFrame['incdec']['leftrear'] === false) { $parsedFrame['volumechange']['leftrear'] *= -1; } $frame_offset += $frame_bytesvolume; $parsedFrame['peakvolume']['rightrear'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; $parsedFrame['peakvolume']['leftrear'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; } $parsedFrame['data'] = substr($parsedFrame['data'], $frame_offset); if (strlen($parsedFrame['data']) > 0) { $parsedFrame['incdec']['center'] = (bool) substr($frame_incrdecrflags, 3, 1); $parsedFrame['volumechange']['center'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); if ($parsedFrame['incdec']['center'] === false) { $parsedFrame['volumechange']['center'] *= -1; } $frame_offset += $frame_bytesvolume; $parsedFrame['peakvolume']['center'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; } $parsedFrame['data'] = substr($parsedFrame['data'], $frame_offset); if (strlen($parsedFrame['data']) > 0) { $parsedFrame['incdec']['bass'] = (bool) substr($frame_incrdecrflags, 2, 1); $parsedFrame['volumechange']['bass'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); if ($parsedFrame['incdec']['bass'] === false) { $parsedFrame['volumechange']['bass'] *= -1; } $frame_offset += $frame_bytesvolume; $parsedFrame['peakvolume']['bass'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; } } unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 4 && $parsedFrame['frame_name'] == 'EQU2') { // 4.12 EQU2 Equalisation (2) (ID3v2.4+ only) // There may be more than one 'EQU2' frame in each tag, // but only one with the same identification string // <Header of 'Equalisation (2)', ID: 'EQU2'> // Interpolation method $xx // $00 Band // $01 Linear // Identification <text string> $00 // The following is then repeated for every adjustment point // Frequency $xx xx // Volume adjustment $xx xx $frame_offset = 0; $frame_interpolationmethod = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_idstring = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_idstring) === 0) { $frame_idstring = ''; } $parsedFrame['description'] = $frame_idstring; $frame_remainingdata = substr($parsedFrame['data'], $frame_terminatorpos + strlen("")); while (strlen($frame_remainingdata)) { $frame_frequency = getid3_lib::BigEndian2Int(substr($frame_remainingdata, 0, 2)) / 2; $parsedFrame['data'][$frame_frequency] = getid3_lib::BigEndian2Int(substr($frame_remainingdata, 2, 2), false, true); $frame_remainingdata = substr($frame_remainingdata, 4); } $parsedFrame['interpolationmethod'] = $frame_interpolationmethod; unset($parsedFrame['data']); } elseif ($id3v2_majorversion == 3 && $parsedFrame['frame_name'] == 'EQUA' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'EQU') { // 4.13 EQU Equalisation (ID3v2.2 only) // There may only be one 'EQUA' frame in each tag // <Header for 'Relative volume adjustment', ID: 'EQU'> // Adjustment bits $xx // This is followed by 2 bytes + ('adjustment bits' rounded up to the // nearest byte) for every equalisation band in the following format, // giving a frequency range of 0 - 32767Hz: // Increment/decrement %x (MSB of the Frequency) // Frequency (lower 15 bits) // Adjustment $xx (xx ...) $frame_offset = 0; $parsedFrame['adjustmentbits'] = substr($parsedFrame['data'], $frame_offset++, 1); $frame_adjustmentbytes = ceil($parsedFrame['adjustmentbits'] / 8); $frame_remainingdata = (string) substr($parsedFrame['data'], $frame_offset); while (strlen($frame_remainingdata) > 0) { $frame_frequencystr = getid3_lib::BigEndian2Bin(substr($frame_remainingdata, 0, 2)); $frame_incdec = (bool) substr($frame_frequencystr, 0, 1); $frame_frequency = bindec(substr($frame_frequencystr, 1, 15)); $parsedFrame[$frame_frequency]['incdec'] = $frame_incdec; $parsedFrame[$frame_frequency]['adjustment'] = getid3_lib::BigEndian2Int(substr($frame_remainingdata, 2, $frame_adjustmentbytes)); if ($parsedFrame[$frame_frequency]['incdec'] === false) { $parsedFrame[$frame_frequency]['adjustment'] *= -1; } $frame_remainingdata = substr($frame_remainingdata, 2 + $frame_adjustmentbytes); } unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'RVRB' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'REV') { // 4.14 REV Reverb // There may only be one 'RVRB' frame in each tag. // <Header for 'Reverb', ID: 'RVRB'> // Reverb left (ms) $xx xx // Reverb right (ms) $xx xx // Reverb bounces, left $xx // Reverb bounces, right $xx // Reverb feedback, left to left $xx // Reverb feedback, left to right $xx // Reverb feedback, right to right $xx // Reverb feedback, right to left $xx // Premix left to right $xx // Premix right to left $xx $frame_offset = 0; $parsedFrame['left'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 2)); $frame_offset += 2; $parsedFrame['right'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 2)); $frame_offset += 2; $parsedFrame['bouncesL'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['bouncesR'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['feedbackLL'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['feedbackLR'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['feedbackRR'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['feedbackRL'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['premixLR'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['premixRL'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'APIC' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'PIC') { // 4.15 PIC Attached picture // There may be several pictures attached to one file, // each in their individual 'APIC' frame, but only one // with the same content descriptor // <Header for 'Attached picture', ID: 'APIC'> // Text encoding $xx // ID3v2.3+ => MIME type <text string> $00 // ID3v2.2 => Image format $xx xx xx // Picture type $xx // Description <text string according to encoding> $00 (00) // Picture data <binary data> $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } if ($id3v2_majorversion == 2 && strlen($parsedFrame['data']) > $frame_offset) { $frame_imagetype = substr($parsedFrame['data'], $frame_offset, 3); if (strtolower($frame_imagetype) == 'ima') { // complete hack for mp3Rage (www.chaoticsoftware.com) that puts ID3v2.3-formatted // MIME type instead of 3-char ID3v2.2-format image type (thanks xbhoffØpacbell*net) $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_mimetype = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_mimetype) === 0) { $frame_mimetype = ''; } $frame_imagetype = strtoupper(str_replace('image/', '', strtolower($frame_mimetype))); if ($frame_imagetype == 'JPEG') { $frame_imagetype = 'JPG'; } $frame_offset = $frame_terminatorpos + strlen(""); } else { $frame_offset += 3; } } if ($id3v2_majorversion > 2 && strlen($parsedFrame['data']) > $frame_offset) { $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_mimetype = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_mimetype) === 0) { $frame_mimetype = ''; } $frame_offset = $frame_terminatorpos + strlen(""); } $frame_picturetype = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $frame_terminatorpos = @strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset); if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // @strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); if ($id3v2_majorversion == 2) { $parsedFrame['imagetype'] = $frame_imagetype; } else { $parsedFrame['mime'] = $frame_mimetype; } $parsedFrame['picturetypeid'] = $frame_picturetype; $parsedFrame['picturetype'] = $this->APICPictureTypeLookup($frame_picturetype); $parsedFrame['description'] = $frame_description; $parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding))); $imagechunkcheck = getid3_lib::GetDataImageSize($parsedFrame['data']); if ($imagechunkcheck[2] >= 1 && $imagechunkcheck[2] <= 3) { $parsedFrame['image_mime'] = 'image/' . getid3_lib::ImageTypesLookup($imagechunkcheck[2]); if ($imagechunkcheck[0]) { $parsedFrame['image_width'] = $imagechunkcheck[0]; } if ($imagechunkcheck[1]) { $parsedFrame['image_height'] = $imagechunkcheck[1]; } $parsedFrame['image_bytes'] = strlen($parsedFrame['data']); } } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'GEOB' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'GEO') { // 4.16 GEO General encapsulated object // There may be more than one 'GEOB' frame in each tag, // but only one with the same content descriptor // <Header for 'General encapsulated object', ID: 'GEOB'> // Text encoding $xx // MIME type <text string> $00 // Filename <text string according to encoding> $00 (00) // Content description <text string according to encoding> $00 (00) // Encapsulated object <binary data> $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_mimetype = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_mimetype) === 0) { $frame_mimetype = ''; } $frame_offset = $frame_terminatorpos + strlen(""); $frame_terminatorpos = @strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset); if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // @strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_filename = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_filename) === 0) { $frame_filename = ''; } $frame_offset = $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)); $frame_terminatorpos = @strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset); if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // @strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $frame_offset = $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)); $parsedFrame['objectdata'] = (string) substr($parsedFrame['data'], $frame_offset); $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); $parsedFrame['mime'] = $frame_mimetype; $parsedFrame['filename'] = $frame_filename; $parsedFrame['description'] = $frame_description; unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'PCNT' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'CNT') { // 4.17 CNT Play counter // There may only be one 'PCNT' frame in each tag. // When the counter reaches all one's, one byte is inserted in // front of the counter thus making the counter eight bits bigger // <Header for 'Play counter', ID: 'PCNT'> // Counter $xx xx xx xx (xx ...) $parsedFrame['data'] = getid3_lib::BigEndian2Int($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'POPM' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'POP') { // 4.18 POP Popularimeter // There may be more than one 'POPM' frame in each tag, // but only one with the same email address // <Header for 'Popularimeter', ID: 'POPM'> // Email to user <text string> $00 // Rating $xx // Counter $xx xx xx xx (xx ...) $frame_offset = 0; $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_emailaddress = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_emailaddress) === 0) { $frame_emailaddress = ''; } $frame_offset = $frame_terminatorpos + strlen(""); $frame_rating = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['data'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset)); $parsedFrame['email'] = $frame_emailaddress; $parsedFrame['rating'] = $frame_rating; unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'RBUF' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'BUF') { // 4.19 BUF Recommended buffer size // There may only be one 'RBUF' frame in each tag // <Header for 'Recommended buffer size', ID: 'RBUF'> // Buffer size $xx xx xx // Embedded info flag %0000000x // Offset to next tag $xx xx xx xx $frame_offset = 0; $parsedFrame['buffersize'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 3)); $frame_offset += 3; $frame_embeddedinfoflags = getid3_lib::BigEndian2Bin(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['flags']['embededinfo'] = (bool) substr($frame_embeddedinfoflags, 7, 1); $parsedFrame['nexttagoffset'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4)); unset($parsedFrame['data']); } elseif ($id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'CRM') { // 4.20 Encrypted meta frame (ID3v2.2 only) // There may be more than one 'CRM' frame in a tag, // but only one with the same 'owner identifier' // <Header for 'Encrypted meta frame', ID: 'CRM'> // Owner identifier <textstring> $00 (00) // Content/explanation <textstring> $00 (00) // Encrypted datablock <binary data> $frame_offset = 0; $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_ownerid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); $frame_offset = $frame_terminatorpos + strlen(""); $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $frame_offset = $frame_terminatorpos + strlen(""); $parsedFrame['ownerid'] = $frame_ownerid; $parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset); $parsedFrame['description'] = $frame_description; unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'AENC' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'CRA') { // 4.21 CRA Audio encryption // There may be more than one 'AENC' frames in a tag, // but only one with the same 'Owner identifier' // <Header for 'Audio encryption', ID: 'AENC'> // Owner identifier <text string> $00 // Preview start $xx xx // Preview length $xx xx // Encryption info <binary data> $frame_offset = 0; $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_ownerid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_ownerid) === 0) { $frame_ownerid == ''; } $frame_offset = $frame_terminatorpos + strlen(""); $parsedFrame['ownerid'] = $frame_ownerid; $parsedFrame['previewstart'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 2)); $frame_offset += 2; $parsedFrame['previewlength'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 2)); $frame_offset += 2; $parsedFrame['encryptioninfo'] = (string) substr($parsedFrame['data'], $frame_offset); unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'LINK' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'LNK') { // 4.22 LNK Linked information // There may be more than one 'LINK' frame in a tag, // but only one with the same contents // <Header for 'Linked information', ID: 'LINK'> // ID3v2.3+ => Frame identifier $xx xx xx xx // ID3v2.2 => Frame identifier $xx xx xx // URL <text string> $00 // ID and additional data <text string(s)> $frame_offset = 0; if ($id3v2_majorversion == 2) { $parsedFrame['frameid'] = substr($parsedFrame['data'], $frame_offset, 3); $frame_offset += 3; } else { $parsedFrame['frameid'] = substr($parsedFrame['data'], $frame_offset, 4); $frame_offset += 4; } $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_url = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_url) === 0) { $frame_url = ''; } $frame_offset = $frame_terminatorpos + strlen(""); $parsedFrame['url'] = $frame_url; $parsedFrame['additionaldata'] = (string) substr($parsedFrame['data'], $frame_offset); if (!empty($parsedFrame['framenameshort']) && $parsedFrame['url']) { $ThisFileInfo['id3v2']['comments'][$parsedFrame['framenameshort']][] = utf8_encode($parsedFrame['url']); } unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'POSS') { // 4.21 POSS Position synchronisation frame (ID3v2.3+ only) // There may only be one 'POSS' frame in each tag // <Head for 'Position synchronisation', ID: 'POSS'> // Time stamp format $xx // Position $xx (xx ...) $frame_offset = 0; $parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['position'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset)); unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'USER') { // 4.22 USER Terms of use (ID3v2.3+ only) // There may be more than one 'Terms of use' frame in a tag, // but only one with the same 'Language' // <Header for 'Terms of use frame', ID: 'USER'> // Text encoding $xx // Language $xx xx xx // The actual text <text string according to encoding> $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $frame_language = substr($parsedFrame['data'], $frame_offset, 3); $frame_offset += 3; $parsedFrame['language'] = $frame_language; $parsedFrame['languagename'] = $this->LanguageLookup($frame_language, false); $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); $parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset); if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) { $ThisFileInfo['id3v2']['comments'][$parsedFrame['framenameshort']][] = getid3_lib::iconv_fallback($parsedFrame['encoding'], $ThisFileInfo['id3v2']['encoding'], $parsedFrame['data']); } unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'OWNE') { // 4.23 OWNE Ownership frame (ID3v2.3+ only) // There may only be one 'OWNE' frame in a tag // <Header for 'Ownership frame', ID: 'OWNE'> // Text encoding $xx // Price paid <text string> $00 // Date of purch. <text string> // Seller <text string according to encoding> $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_pricepaid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); $frame_offset = $frame_terminatorpos + strlen(""); $parsedFrame['pricepaid']['currencyid'] = substr($frame_pricepaid, 0, 3); $parsedFrame['pricepaid']['currency'] = $this->LookupCurrencyUnits($parsedFrame['pricepaid']['currencyid']); $parsedFrame['pricepaid']['value'] = substr($frame_pricepaid, 3); $parsedFrame['purchasedate'] = substr($parsedFrame['data'], $frame_offset, 8); if (!$this->IsValidDateStampString($parsedFrame['purchasedate'])) { $parsedFrame['purchasedateunix'] = mktime(0, 0, 0, substr($parsedFrame['purchasedate'], 4, 2), substr($parsedFrame['purchasedate'], 6, 2), substr($parsedFrame['purchasedate'], 0, 4)); } $frame_offset += 8; $parsedFrame['seller'] = (string) substr($parsedFrame['data'], $frame_offset); unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'COMR') { // 4.24 COMR Commercial frame (ID3v2.3+ only) // There may be more than one 'commercial frame' in a tag, // but no two may be identical // <Header for 'Commercial frame', ID: 'COMR'> // Text encoding $xx // Price string <text string> $00 // Valid until <text string> // Contact URL <text string> $00 // Received as $xx // Name of seller <text string according to encoding> $00 (00) // Description <text string according to encoding> $00 (00) // Picture MIME type <string> $00 // Seller logo <binary data> $frame_offset = 0; $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1)); if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) { $ThisFileInfo['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding'; } $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_pricestring = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); $frame_offset = $frame_terminatorpos + strlen(""); $frame_rawpricearray = explode('/', $frame_pricestring); foreach ($frame_rawpricearray as $key => $val) { $frame_currencyid = substr($val, 0, 3); $parsedFrame['price'][$frame_currencyid]['currency'] = $this->LookupCurrencyUnits($frame_currencyid); $parsedFrame['price'][$frame_currencyid]['value'] = substr($val, 3); } $frame_datestring = substr($parsedFrame['data'], $frame_offset, 8); $frame_offset += 8; $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_contacturl = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); $frame_offset = $frame_terminatorpos + strlen(""); $frame_receivedasid = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $frame_terminatorpos = @strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset); if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // @strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_sellername = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_sellername) === 0) { $frame_sellername = ''; } $frame_offset = $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)); $frame_terminatorpos = @strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset); if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // @strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $frame_offset = $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)); $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_mimetype = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); $frame_offset = $frame_terminatorpos + strlen(""); $frame_sellerlogo = substr($parsedFrame['data'], $frame_offset); $parsedFrame['encodingid'] = $frame_textencoding; $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding); $parsedFrame['pricevaliduntil'] = $frame_datestring; $parsedFrame['contacturl'] = $frame_contacturl; $parsedFrame['receivedasid'] = $frame_receivedasid; $parsedFrame['receivedas'] = $this->COMRReceivedAsLookup($frame_receivedasid); $parsedFrame['sellername'] = $frame_sellername; $parsedFrame['description'] = $frame_description; $parsedFrame['mime'] = $frame_mimetype; $parsedFrame['logo'] = $frame_sellerlogo; unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'ENCR') { // 4.25 ENCR Encryption method registration (ID3v2.3+ only) // There may be several 'ENCR' frames in a tag, // but only one containing the same symbol // and only one containing the same owner identifier // <Header for 'Encryption method registration', ID: 'ENCR'> // Owner identifier <text string> $00 // Method symbol $xx // Encryption data <binary data> $frame_offset = 0; $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_ownerid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_ownerid) === 0) { $frame_ownerid = ''; } $frame_offset = $frame_terminatorpos + strlen(""); $parsedFrame['ownerid'] = $frame_ownerid; $parsedFrame['methodsymbol'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'GRID') { // 4.26 GRID Group identification registration (ID3v2.3+ only) // There may be several 'GRID' frames in a tag, // but only one containing the same symbol // and only one containing the same owner identifier // <Header for 'Group ID registration', ID: 'GRID'> // Owner identifier <text string> $00 // Group symbol $xx // Group dependent data <binary data> $frame_offset = 0; $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_ownerid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_ownerid) === 0) { $frame_ownerid = ''; } $frame_offset = $frame_terminatorpos + strlen(""); $parsedFrame['ownerid'] = $frame_ownerid; $parsedFrame['groupsymbol'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'PRIV') { // 4.27 PRIV Private frame (ID3v2.3+ only) // The tag may contain more than one 'PRIV' frame // but only with different contents // <Header for 'Private frame', ID: 'PRIV'> // Owner identifier <text string> $00 // The private data <binary data> $frame_offset = 0; $frame_terminatorpos = @strpos($parsedFrame['data'], "", $frame_offset); $frame_ownerid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_ownerid) === 0) { $frame_ownerid = ''; } $frame_offset = $frame_terminatorpos + strlen(""); $parsedFrame['ownerid'] = $frame_ownerid; $parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset); } elseif ($id3v2_majorversion >= 4 && $parsedFrame['frame_name'] == 'SIGN') { // 4.28 SIGN Signature frame (ID3v2.4+ only) // There may be more than one 'signature frame' in a tag, // but no two may be identical // <Header for 'Signature frame', ID: 'SIGN'> // Group symbol $xx // Signature <binary data> $frame_offset = 0; $parsedFrame['groupsymbol'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset); } elseif ($id3v2_majorversion >= 4 && $parsedFrame['frame_name'] == 'SEEK') { // 4.29 SEEK Seek frame (ID3v2.4+ only) // There may only be one 'seek frame' in a tag // <Header for 'Seek frame', ID: 'SEEK'> // Minimum offset to next tag $xx xx xx xx $frame_offset = 0; $parsedFrame['data'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4)); } elseif ($id3v2_majorversion >= 4 && $parsedFrame['frame_name'] == 'ASPI') { // 4.30 ASPI Audio seek point index (ID3v2.4+ only) // There may only be one 'audio seek point index' frame in a tag // <Header for 'Seek Point Index', ID: 'ASPI'> // Indexed data start (S) $xx xx xx xx // Indexed data length (L) $xx xx xx xx // Number of index points (N) $xx xx // Bits per index point (b) $xx // Then for every index point the following data is included: // Fraction at index (Fi) $xx (xx) $frame_offset = 0; $parsedFrame['datastart'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4)); $frame_offset += 4; $parsedFrame['indexeddatalength'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4)); $frame_offset += 4; $parsedFrame['indexpoints'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 2)); $frame_offset += 2; $parsedFrame['bitsperpoint'] = ord(substr($parsedFrame['data'], $frame_offset++, 1)); $frame_bytesperpoint = ceil($parsedFrame['bitsperpoint'] / 8); for ($i = 0; $i < $frame_indexpoints; $i++) { $parsedFrame['indexes'][$i] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesperpoint)); $frame_offset += $frame_bytesperpoint; } unset($parsedFrame['data']); } elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'RGAD') { // Replay Gain Adjustment // http://privatewww.essex.ac.uk/~djmrob/replaygain/file_format_id3v2.html // There may only be one 'RGAD' frame in a tag // <Header for 'Replay Gain Adjustment', ID: 'RGAD'> // Peak Amplitude $xx $xx $xx $xx // Radio Replay Gain Adjustment %aaabbbcd %dddddddd // Audiophile Replay Gain Adjustment %aaabbbcd %dddddddd // a - name code // b - originator code // c - sign bit // d - replay gain adjustment $frame_offset = 0; $parsedFrame['peakamplitude'] = getid3_lib::BigEndian2Float(substr($parsedFrame['data'], $frame_offset, 4)); $frame_offset += 4; $rg_track_adjustment = getid3_lib::Dec2Bin(substr($parsedFrame['data'], $frame_offset, 2)); $frame_offset += 2; $rg_album_adjustment = getid3_lib::Dec2Bin(substr($parsedFrame['data'], $frame_offset, 2)); $frame_offset += 2; $parsedFrame['raw']['track']['name'] = getid3_lib::Bin2Dec(substr($rg_track_adjustment, 0, 3)); $parsedFrame['raw']['track']['originator'] = getid3_lib::Bin2Dec(substr($rg_track_adjustment, 3, 3)); $parsedFrame['raw']['track']['signbit'] = getid3_lib::Bin2Dec(substr($rg_track_adjustment, 6, 1)); $parsedFrame['raw']['track']['adjustment'] = getid3_lib::Bin2Dec(substr($rg_track_adjustment, 7, 9)); $parsedFrame['raw']['album']['name'] = getid3_lib::Bin2Dec(substr($rg_album_adjustment, 0, 3)); $parsedFrame['raw']['album']['originator'] = getid3_lib::Bin2Dec(substr($rg_album_adjustment, 3, 3)); $parsedFrame['raw']['album']['signbit'] = getid3_lib::Bin2Dec(substr($rg_album_adjustment, 6, 1)); $parsedFrame['raw']['album']['adjustment'] = getid3_lib::Bin2Dec(substr($rg_album_adjustment, 7, 9)); $parsedFrame['track']['name'] = getid3_lib::RGADnameLookup($parsedFrame['raw']['track']['name']); $parsedFrame['track']['originator'] = getid3_lib::RGADoriginatorLookup($parsedFrame['raw']['track']['originator']); $parsedFrame['track']['adjustment'] = getid3_lib::RGADadjustmentLookup($parsedFrame['raw']['track']['adjustment'], $parsedFrame['raw']['track']['signbit']); $parsedFrame['album']['name'] = getid3_lib::RGADnameLookup($parsedFrame['raw']['album']['name']); $parsedFrame['album']['originator'] = getid3_lib::RGADoriginatorLookup($parsedFrame['raw']['album']['originator']); $parsedFrame['album']['adjustment'] = getid3_lib::RGADadjustmentLookup($parsedFrame['raw']['album']['adjustment'], $parsedFrame['raw']['album']['signbit']); $ThisFileInfo['replay_gain']['track']['peak'] = $parsedFrame['peakamplitude']; $ThisFileInfo['replay_gain']['track']['originator'] = $parsedFrame['track']['originator']; $ThisFileInfo['replay_gain']['track']['adjustment'] = $parsedFrame['track']['adjustment']; $ThisFileInfo['replay_gain']['album']['originator'] = $parsedFrame['album']['originator']; $ThisFileInfo['replay_gain']['album']['adjustment'] = $parsedFrame['album']['adjustment']; unset($parsedFrame['data']); } return true; }
function analyze($filename) { if (!empty($this->startup_error)) { return $this->error($this->startup_error); } if (!empty($this->startup_warning)) { $this->warning($this->startup_warning); } // init result array and set parameters $this->info = array(); $this->info['GETID3_VERSION'] = GETID3_VERSION; // Check encoding/iconv support if (!function_exists('iconv') && !in_array($this->encoding, array('ISO-8859-1', 'UTF-8', 'UTF-16LE', 'UTF-16BE', 'UTF-16'))) { $errormessage = 'iconv() support is needed for encodings other than ISO-8859-1, UTF-8, UTF-16LE, UTF16-BE, UTF-16. '; if (GETID3_OS_ISWINDOWS) { $errormessage .= 'PHP does not have iconv() support. Please enable php_iconv.dll in php.ini, and copy iconv.dll from c:/php/dlls to c:/windows/system32'; } else { $errormessage .= 'PHP is not compiled with iconv() support. Please recompile with the --with-iconv switch'; } return $this->error($errormessage); } // Disable magic_quotes_runtime, if neccesary $old_magic_quotes_runtime = get_magic_quotes_runtime(); // store current setting of magic_quotes_runtime if ($old_magic_quotes_runtime) { set_magic_quotes_runtime(0); // turn off magic_quotes_runtime if (get_magic_quotes_runtime()) { return $this->error('Could not disable magic_quotes_runtime - getID3() cannot work properly with this setting enabled'); } } // remote files not supported if (preg_match('/^(ht|f)tp:\\/\\//', $filename)) { return $this->error('Remote files are not supported in this version of getID3() - please copy the file locally first'); } // open local file if (!($fp = @fopen($filename, 'rb'))) { return $this->error('Could not open file "' . $filename . '"'); } // set parameters $this->info['filesize'] = filesize($filename); // option_max_2gb_check if ($this->option_max_2gb_check) { // PHP doesn't support integers larger than 31-bit (~2GB) // filesize() simply returns (filesize % (pow(2, 32)), no matter the actual filesize // ftell() returns 0 if seeking to the end is beyond the range of unsigned integer fseek($fp, 0, SEEK_END); if ($this->info['filesize'] != 0 && ftell($fp) == 0 || $this->info['filesize'] < 0 || ftell($fp) < 0) { unset($this->info['filesize']); fclose($fp); return $this->error('File is most likely larger than 2GB and is not supported by PHP'); } } // set more parameters $this->info['avdataoffset'] = 0; $this->info['avdataend'] = $this->info['filesize']; $this->info['fileformat'] = ''; // filled in later $this->info['audio']['dataformat'] = ''; // filled in later, unset if not used $this->info['video']['dataformat'] = ''; // filled in later, unset if not used $this->info['tags'] = array(); // filled in later, unset if not used $this->info['error'] = array(); // filled in later, unset if not used $this->info['warning'] = array(); // filled in later, unset if not used $this->info['comments'] = array(); // filled in later, unset if not used $this->info['encoding'] = $this->encoding; // required by id3v2 and iso modules - can be unset at the end if desired // set redundant parameters - might be needed in some include file $this->info['filename'] = basename($filename); $this->info['filepath'] = str_replace('\\', '/', realpath(dirname($filename))); $this->info['filenamepath'] = $this->info['filepath'] . '/' . $this->info['filename']; // handle ID3v2 tag - done first - already at beginning of file // ID3v2 detection (even if not parsing) is always done otherwise fileformat is much harder to detect if ($this->option_tag_id3v2) { $GETID3_ERRORARRAY =& $this->info['warning']; if (getid3_lib::IncludeDependency(GETID3_INCLUDEPATH . 'module.tag.id3v2.php', __FILE__, false)) { $tag = new getid3_id3v2($fp, $this->info); } } else { fseek($fp, 0, SEEK_SET); $header = fread($fp, 10); if (substr($header, 0, 3) == 'ID3') { $this->info['id3v2']['header'] = true; $this->info['id3v2']['majorversion'] = ord($header[3]); $this->info['id3v2']['minorversion'] = ord($header[4]); $this->info['id3v2']['headerlength'] = getid3_lib::BigEndian2Int(substr($header, 6, 4), 1) + 10; // length of ID3v2 tag in 10-byte header doesn't include 10-byte header length $this->info['id3v2']['tag_offset_start'] = 0; $this->info['id3v2']['tag_offset_end'] = $this->info['id3v2']['tag_offset_start'] + $this->info['id3v2']['headerlength']; $this->info['avdataoffset'] = $this->info['id3v2']['tag_offset_end']; } } // handle ID3v1 tag if ($this->option_tag_id3v1) { if (!@(include_once GETID3_INCLUDEPATH . 'module.tag.id3v1.php')) { return $this->error('module.tag.id3v1.php is missing - you may disable option_tag_id3v1.'); } $tag = new getid3_id3v1($fp, $this->info); } // handle APE tag if ($this->option_tag_apetag) { if (!@(include_once GETID3_INCLUDEPATH . 'module.tag.apetag.php')) { return $this->error('module.tag.apetag.php is missing - you may disable option_tag_apetag.'); } $tag = new getid3_apetag($fp, $this->info); } // handle lyrics3 tag if ($this->option_tag_lyrics3) { if (!@(include_once GETID3_INCLUDEPATH . 'module.tag.lyrics3.php')) { return $this->error('module.tag.lyrics3.php is missing - you may disable option_tag_lyrics3.'); } $tag = new getid3_lyrics3($fp, $this->info); } // read 32 kb file data fseek($fp, $this->info['avdataoffset'], SEEK_SET); $formattest = fread($fp, 32774); // determine format $determined_format = $this->GetFileFormat($formattest, $filename); // unable to determine file format if (!$determined_format) { fclose($fp); return $this->error('unable to determine file format'); } // check for illegal ID3 tags if (isset($determined_format['fail_id3']) && (in_array('id3v1', $this->info['tags']) || in_array('id3v2', $this->info['tags']))) { if ($determined_format['fail_id3'] === 'ERROR') { fclose($fp); return $this->error('ID3 tags not allowed on this file type.'); } elseif ($determined_format['fail_id3'] === 'WARNING') { $this->info['warning'][] = 'ID3 tags not allowed on this file type.'; } } // check for illegal APE tags if (isset($determined_format['fail_ape']) && in_array('ape', $this->info['tags'])) { if ($determined_format['fail_ape'] === 'ERROR') { fclose($fp); return $this->error('APE tags not allowed on this file type.'); } elseif ($determined_format['fail_ape'] === 'WARNING') { $this->info['warning'][] = 'APE tags not allowed on this file type.'; } } // set mime type $this->info['mime_type'] = $determined_format['mime_type']; // supported format signature pattern detected, but module deleted if (!file_exists(GETID3_INCLUDEPATH . $determined_format['include'])) { fclose($fp); return $this->error('Format not supported, module, ' . $determined_format['include'] . ', was removed.'); } // module requires iconv support if (!function_exists('iconv') && @$determined_format['iconv_req']) { return $this->error('iconv support is required for this module (' . $determined_format['include'] . ').'); } // include module include_once GETID3_INCLUDEPATH . $determined_format['include']; // instantiate module class $class_name = 'getid3_' . $determined_format['module']; if (!class_exists($class_name)) { return $this->error('Format not supported, module, ' . $determined_format['include'] . ', is corrupt.'); } if (isset($determined_format['option'])) { $class = new $class_name($fp, $this->info, $determined_format['option']); } else { $class = new $class_name($fp, $this->info); } // close file fclose($fp); // process all tags - copy to 'tags' and convert charsets if ($this->option_tags_process) { $this->HandleAllTags(); } // perform more calculations if ($this->option_extra_info) { $this->ChannelsBitratePlaytimeCalculations(); $this->CalculateCompressionRatioVideo(); $this->CalculateCompressionRatioAudio(); $this->CalculateReplayGain(); $this->ProcessAudioStreams(); } // get the MD5 sum of the audio/video portion of the file - without ID3/APE/Lyrics3/etc header/footer tags if ($this->option_md5_data) { // do not cald md5_data if md5_data_source is present - set by flac only - future MPC/SV8 too if (!$this->option_md5_data_source || empty($this->info['md5_data_source'])) { $this->getHashdata('md5'); } } // get the SHA1 sum of the audio/video portion of the file - without ID3/APE/Lyrics3/etc header/footer tags if ($this->option_sha1_data) { $this->getHashdata('sha1'); } // remove undesired keys $this->CleanUp(); // restore magic_quotes_runtime setting set_magic_quotes_runtime($old_magic_quotes_runtime); // return info array return $this->info; }
function getid3_flv(&$fd, &$ThisFileInfo, $ReturnAllTagData = false) { fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); $FLVdataLength = $ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']; $FLVheader = fread($fd, 5); $ThisFileInfo['fileformat'] = 'flv'; $ThisFileInfo['flv']['header']['signature'] = substr($FLVheader, 0, 3); $ThisFileInfo['flv']['header']['version'] = getid3_lib::BigEndian2Int(substr($FLVheader, 3, 1)); $TypeFlags = getid3_lib::BigEndian2Int(substr($FLVheader, 4, 1)); if ($ThisFileInfo['flv']['header']['signature'] != 'FLV') { $ThisFileInfo['error'][] = 'Expecting "FLV" at offset ' . $ThisFileInfo['avdataoffset'] . ', found "' . $ThisFileInfo['flv']['header']['signature'] . '"'; unset($ThisFileInfo['flv']); unset($ThisFileInfo['fileformat']); return false; } $ThisFileInfo['flv']['header']['hasAudio'] = (bool) ($TypeFlags & 0x4); $ThisFileInfo['flv']['header']['hasVideo'] = (bool) ($TypeFlags & 0x1); $FrameSizeDataLength = getid3_lib::BigEndian2Int(fread($fd, 4)); $FLVheaderFrameLength = 9; if ($FrameSizeDataLength > $FLVheaderFrameLength) { fseek($fd, $FrameSizeDataLength - $FLVheaderFrameLength, SEEK_CUR); } $Duration = 0; while (ftell($fd) + 1 < $ThisFileInfo['avdataend']) { //if (!$ThisFileInfo['flv']['header']['hasAudio'] || isset($ThisFileInfo['flv']['audio']['audioFormat'])) { // if (!$ThisFileInfo['flv']['header']['hasVideo'] || isset($ThisFileInfo['flv']['video']['videoCodec'])) { // break; // } //} $ThisTagHeader = fread($fd, 16); $PreviousTagLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 0, 4)); $TagType = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 4, 1)); $DataLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 5, 3)); $Timestamp = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 8, 3)); $LastHeaderByte = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 15, 1)); $NextOffset = ftell($fd) - 1 + $DataLength; switch ($TagType) { case GETID3_FLV_TAG_AUDIO: if (!isset($ThisFileInfo['flv']['audio']['audioFormat'])) { $ThisFileInfo['flv']['audio']['audioFormat'] = $LastHeaderByte & 0x7; $ThisFileInfo['flv']['audio']['audioRate'] = ($LastHeaderByte & 0x30) / 0x10; $ThisFileInfo['flv']['audio']['audioSampleSize'] = ($LastHeaderByte & 0x40) / 0x40; $ThisFileInfo['flv']['audio']['audioType'] = ($LastHeaderByte & 0x80) / 0x80; } break; case GETID3_FLV_TAG_VIDEO: if (!isset($ThisFileInfo['flv']['video']['videoCodec'])) { $ThisFileInfo['flv']['video']['videoCodec'] = $LastHeaderByte & 0x7; switch ($ThisFileInfo['flv']['video']['videoCodec']) { case GETID3_FLV_VIDEO_H263: $FLVvideoHeader = fread($fd, 11); $PictureSizeType = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 3, 2)) >> 7; $PictureSizeType = $PictureSizeType & 0x7; $ThisFileInfo['flv']['header']['videoSizeType'] = $PictureSizeType; switch ($PictureSizeType) { case 0: $PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2)); $PictureSizeEnc <<= 1; $ThisFileInfo['video']['resolution_x'] = ($PictureSizeEnc & 0xff00) >> 8; $PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2)); $PictureSizeEnc <<= 1; $ThisFileInfo['video']['resolution_y'] = ($PictureSizeEnc & 0xff00) >> 8; break; case 1: $PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 4)); $PictureSizeEnc <<= 1; $ThisFileInfo['video']['resolution_x'] = ($PictureSizeEnc & 0xffff0000) >> 16; $PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 7, 4)); $PictureSizeEnc <<= 1; $ThisFileInfo['video']['resolution_y'] = ($PictureSizeEnc & 0xffff0000) >> 16; break; case 2: $ThisFileInfo['video']['resolution_x'] = 352; $ThisFileInfo['video']['resolution_y'] = 288; break; case 3: $ThisFileInfo['video']['resolution_x'] = 176; $ThisFileInfo['video']['resolution_y'] = 144; break; case 4: $ThisFileInfo['video']['resolution_x'] = 128; $ThisFileInfo['video']['resolution_y'] = 96; break; case 5: $ThisFileInfo['video']['resolution_x'] = 320; $ThisFileInfo['video']['resolution_y'] = 240; break; case 6: $ThisFileInfo['video']['resolution_x'] = 160; $ThisFileInfo['video']['resolution_y'] = 120; break; default: $ThisFileInfo['video']['resolution_x'] = 0; $ThisFileInfo['video']['resolution_y'] = 0; break; } break; case GETID3_FLV_VIDEO_SCREEN: $bits = new BitStreamReader(fread($fd, $DataLength)); $bits->seek(4, SEEK_CUR); $ThisFileInfo['video']['resolution_x'] = $bits->getInt(12); $bits->seek(4, SEEK_CUR); $ThisFileInfo['video']['resolution_y'] = $bits->getInt(12); break; case GETID3_FLV_VIDEO_VP6: $bits = new BitStreamReader(fread($fd, $DataLength)); $adjW = $bits->getInt(4); $adjH = $bits->getInt(4); $mode = $bits->getInt(1); if ($mode === 0) { $bits->seek(15, SEEK_CUR); $ThisFileInfo['video']['resolution_y'] = $bits->getInt(8) * 16 - $adjH; $ThisFileInfo['video']['resolution_x'] = $bits->getInt(8) * 16 - $adjW; } break; case GETID3_FLV_VIDEO_VP6ALPHA: $bits = new BitStreamReader(fread($fd, $DataLength)); $adjW = $bits->getInt(4); $adjH = $bits->getInt(4); $mode = $bits->getInt(1); // mode is for ? unknown ? if ($mode === 0) { $bits->seek(39, SEEK_CUR); $ThisFileInfo['video']['resolution_y'] = $bits->getInt(8) * 16 - $adjH; $ThisFileInfo['video']['resolution_x'] = $bits->getInt(8) * 16 - $adjW; } break; case GETID3_FLV_VIDEO_SCREENVIDEO_2: $ThisFileInfo['video']['resolution_x'] = $bits->getInt(12); $ThisFileInfo['video']['resolution_y'] = $bits->getInt(12); break; } } break; // Meta tag // Meta tag case GETID3_FLV_TAG_META: fseek($fd, -1, SEEK_CUR); $reader = new AMFReader(fread($fd, $DataLength)); $eventName = $reader->getItem(); if ($eventName == 'onMetaData') { $ThisFileInfo['meta']['onMetaData'] = $reader->getItem(); } unset($reader); $ThisFileInfo['video']['frame_rate'] = @$ThisFileInfo['meta']['onMetaData']['framerate']; $ThisFileInfo['video']['resolution_x'] = @$ThisFileInfo['meta']['onMetaData']['width']; $ThisFileInfo['video']['resolution_y'] = @$ThisFileInfo['meta']['onMetaData']['height']; break; default: // noop break; } if ($Timestamp > $Duration) { $Duration = $Timestamp; } fseek($fd, $NextOffset, SEEK_SET); } if ($ThisFileInfo['playtime_seconds'] = $Duration / 1000) { $ThisFileInfo['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds']; } if ($ThisFileInfo['flv']['header']['hasAudio']) { $ThisFileInfo['audio']['codec'] = $this->FLVaudioFormat($ThisFileInfo['flv']['audio']['audioFormat']); $ThisFileInfo['audio']['sample_rate'] = $this->FLVaudioRate($ThisFileInfo['flv']['audio']['audioRate']); $ThisFileInfo['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($ThisFileInfo['flv']['audio']['audioSampleSize']); $ThisFileInfo['audio']['channels'] = $ThisFileInfo['flv']['audio']['audioType'] + 1; // 0=mono,1=stereo $ThisFileInfo['audio']['lossless'] = $ThisFileInfo['flv']['audio']['audioFormat'] ? false : true; // 0=uncompressed $ThisFileInfo['audio']['dataformat'] = 'flv'; } if (@$ThisFileInfo['flv']['header']['hasVideo']) { $ThisFileInfo['video']['codec'] = $this->FLVvideoCodec($ThisFileInfo['flv']['video']['videoCodec']); $ThisFileInfo['video']['dataformat'] = 'flv'; $ThisFileInfo['video']['lossless'] = false; } return true; }
public function Analyze() { $getid3 = $this->getid3; $getid3->include_module('audio-video.riff'); // Magic bytes - 'LPAC' fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET); $lpac_header = fread($getid3->fp, 14); $getid3->info['avdataoffset'] += 14; $getid3->info['lpac'] = array(); $info_lpac =& $getid3->info['lpac']; $getid3->info['fileformat'] = 'lpac'; $getid3->info['audio']['dataformat'] = 'lpac'; $getid3->info['audio']['lossless'] = true; $getid3->info['audio']['bitrate_mode'] = 'vbr'; $info_lpac['file_version'] = getid3_lib::BigEndian2Int($lpac_header[4]); $flags['audio_type'] = getid3_lib::BigEndian2Int($lpac_header[5]); $info_lpac['total_samples'] = getid3_lib::BigEndian2Int(substr($lpac_header, 6, 4)); $flags['parameters'] = getid3_lib::BigEndian2Int(substr($lpac_header, 10, 4)); $info_lpac['flags']['is_wave'] = (bool) ($flags['audio_type'] & 0x40); $info_lpac['flags']['stereo'] = (bool) ($flags['audio_type'] & 0x4); $info_lpac['flags']['24_bit'] = (bool) ($flags['audio_type'] & 0x2); $info_lpac['flags']['16_bit'] = (bool) ($flags['audio_type'] & 0x1); if ($info_lpac['flags']['24_bit'] && $info_lpac['flags']['16_bit']) { $getid3->warning('24-bit and 16-bit flags cannot both be set'); } $info_lpac['flags']['fast_compress'] = (bool) ($flags['parameters'] & 0x40000000); $info_lpac['flags']['random_access'] = (bool) ($flags['parameters'] & 0x8000000); $info_lpac['block_length'] = pow(2, ($flags['parameters'] & 0x7000000) >> 24) * 256; $info_lpac['flags']['adaptive_prediction_order'] = (bool) ($flags['parameters'] & 0x800000); $info_lpac['flags']['adaptive_quantization'] = (bool) ($flags['parameters'] & 0x400000); $info_lpac['flags']['joint_stereo'] = (bool) ($flags['parameters'] & 0x40000); $info_lpac['quantization'] = ($flags['parameters'] & 0x1f00) >> 8; $info_lpac['max_prediction_order'] = $flags['parameters'] & 0x3f; if ($info_lpac['flags']['fast_compress'] && $info_lpac['max_prediction_order'] != 3) { $getid3->warning('max_prediction_order expected to be "3" if fast_compress is true, actual value is "' . $info_lpac['max_prediction_order'] . '"'); } switch ($info_lpac['file_version']) { case 6: if ($info_lpac['flags']['adaptive_quantization']) { $getid3->warning('adaptive_quantization expected to be false in LPAC file stucture v6, actually true'); } if ($info_lpac['quantization'] != 20) { $getid3->warning('Quantization expected to be 20 in LPAC file stucture v6, actually ' . $info_lpac['flags']['Q']); } break; default: //$getid3->warning('This version of getID3() only supports LPAC file format version 6, this file is version '.$info_lpac['file_version'].' - please report to info@getid3.org'); break; } // Clone getid3 - messing with something - better safe than sorry $clone = clone $getid3; // Analyze clone by fp $riff = new getid3_riff($clone); $riff->Analyze(); // Import from clone and destroy $getid3->info['avdataoffset'] = $clone->info['avdataoffset']; $getid3->info['riff'] = $clone->info['riff']; //$info_lpac['comments']['comment'] = $clone->info['comments']; $getid3->info['audio']['sample_rate'] = $clone->info['audio']['sample_rate']; $getid3->warnings($clone->warnings()); unset($clone); $getid3->info['audio']['channels'] = $info_lpac['flags']['stereo'] ? 2 : 1; if ($info_lpac['flags']['24_bit']) { $getid3->info['audio']['bits_per_sample'] = $getid3->info['riff']['audio'][0]['bits_per_sample']; } elseif ($info_lpac['flags']['16_bit']) { $getid3->info['audio']['bits_per_sample'] = 16; } else { $getid3->info['audio']['bits_per_sample'] = 8; } if ($info_lpac['flags']['fast_compress']) { // fast $getid3->info['audio']['encoder_options'] = '-1'; } else { switch ($info_lpac['max_prediction_order']) { case 20: // simple $getid3->info['audio']['encoder_options'] = '-2'; break; case 30: // medium $getid3->info['audio']['encoder_options'] = '-3'; break; case 40: // high $getid3->info['audio']['encoder_options'] = '-4'; break; case 60: // extrahigh $getid3->info['audio']['encoder_options'] = '-5'; break; } } $getid3->info['playtime_seconds'] = $info_lpac['total_samples'] / $getid3->info['audio']['sample_rate']; $getid3->info['audio']['bitrate'] = ($getid3->info['avdataend'] - $getid3->info['avdataoffset']) * 8 / $getid3->info['playtime_seconds']; return true; }
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 != GETID3_MIDI_MAGIC_MTHD) { $info['error'][] = 'Expecting "' . getid3_lib::PrintHexBytes(GETID3_MIDI_MAGIC_MTHD) . '" at offset ' . $info['avdataoffset'] . ', found "' . getid3_lib::PrintHexBytes($MIDIheaderID) . '"'; unset($info['fileformat']); return false; } $offset += 4; $thisfile_midi_raw['headersize'] = getid3_lib::BigEndian2Int(substr($MIDIdata, $offset, 4)); $offset += 4; $thisfile_midi_raw['fileformat'] = getid3_lib::BigEndian2Int(substr($MIDIdata, $offset, 2)); $offset += 2; $thisfile_midi_raw['tracks'] = getid3_lib::BigEndian2Int(substr($MIDIdata, $offset, 2)); $offset += 2; $thisfile_midi_raw['ticksperqnote'] = getid3_lib::BigEndian2Int(substr($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 == GETID3_MIDI_MAGIC_MTRK) { $tracksize = getid3_lib::BigEndian2Int(substr($MIDIdata, $offset, 4)); $offset += 4; // $thisfile_midi['tracks'][$i]['size'] = $tracksize; $trackdataarray[$i] = substr($MIDIdata, $offset, $tracksize); $offset += $tracksize; } else { $info['error'][] = 'Expecting "' . getid3_lib::PrintHexBytes(GETID3_MIDI_MAGIC_MTRK) . '" at ' . ($offset - 4) . ', found "' . getid3_lib::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 $track_sequence_number = getid3_lib::BigEndian2Int(substr($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 $CurrentMicroSecondsPerBeat = getid3_lib::BigEndian2Int(substr($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 $timesig_numerator = getid3_lib::BigEndian2Int($METAeventData[0]); $timesig_denominator = pow(2, getid3_lib::BigEndian2Int($METAeventData[1])); // $02 -> x/4, $03 -> x/8, etc $timesig_32inqnote = getid3_lib::BigEndian2Int($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 $keysig_sharpsflats = getid3_lib::BigEndian2Int($METAeventData[0]); if ($keysig_sharpsflats & 0x80) { // (-7 -> 7 flats, 0 ->key of C, 7 -> 7 sharps) $keysig_sharpsflats -= 256; } $keysig_majorminor = getid3_lib::BigEndian2Int($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; }
/** * Parse METADATA_BLOCK_PICTURE flac structure and extract attachment * External usage: audio.ogg */ public function parsePICTURE() { $info =& $this->getid3->info; $picture['typeid'] = getid3_lib::BigEndian2Int($this->fread(4)); $picture['picturetype'] = self::pictureTypeLookup($picture['typeid']); $picture['image_mime'] = $this->fread(getid3_lib::BigEndian2Int($this->fread(4))); $descr_length = getid3_lib::BigEndian2Int($this->fread(4)); if ($descr_length) { $picture['description'] = $this->fread($descr_length); } $picture['image_width'] = getid3_lib::BigEndian2Int($this->fread(4)); $picture['image_height'] = getid3_lib::BigEndian2Int($this->fread(4)); $picture['color_depth'] = getid3_lib::BigEndian2Int($this->fread(4)); $picture['colors_indexed'] = getid3_lib::BigEndian2Int($this->fread(4)); $picture['datalength'] = getid3_lib::BigEndian2Int($this->fread(4)); if ($picture['image_mime'] == '-->') { $picture['data'] = $this->fread($picture['datalength']); } else { $picture['data'] = $this->saveAttachment(str_replace('/', '_', $picture['picturetype']) . '_' . $this->ftell(), $this->ftell(), $picture['datalength'], $picture['image_mime']); } $info['flac']['PICTURE'][] = $picture; return true; }
public function Analyze() { $info =& $this->getid3->info; $info['fileformat'] = 'swf'; $info['video']['dataformat'] = 'swf'; // http://www.openswf.org/spec/SWFfileformat.html $this->fseek($info['avdataoffset']); $SWFfileData = $this->fread($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 ' . $info['avdataoffset'] . ', found "' . getid3_lib::PrintHexBytes($info['swf']['header']['signature']) . '"'; unset($info['swf']); unset($info['fileformat']); return false; break; } $info['swf']['header']['version'] = getid3_lib::LittleEndian2Int(substr($SWFfileData, 3, 1)); $info['swf']['header']['length'] = getid3_lib::LittleEndian2Int(substr($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)); $info['swf']['header']['frame_width'] = getid3_lib::Bin2Dec($X2); $info['swf']['header']['frame_height'] = getid3_lib::Bin2Dec($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 $info['swf']['header']['frame_rate'] = getid3_lib::LittleEndian2Int(substr($SWFfileData, 9 + $FrameSizeDataLength, 1)); $info['swf']['header']['frame_count'] = getid3_lib::LittleEndian2Int(substr($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>'; $TagIDTagLength = getid3_lib::LittleEndian2Int(substr($SWFfileData, $CurrentOffset, 2)); $TagID = ($TagIDTagLength & 0xfffc) >> 6; $TagLength = $TagIDTagLength & 0x3f; $CurrentOffset += 2; if ($TagLength == 0x3f) { $TagLength = getid3_lib::LittleEndian2Int(substr($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; $info['swf']['bgcolor'] = strtoupper(str_pad(dechex(getid3_lib::BigEndian2Int($TagData['data'])), 6, '0', STR_PAD_LEFT)); break; default: if ($this->ReturnAllTagData) { $info['swf']['tags'][] = $TagData; } break; } $CurrentOffset += $TagLength; } return true; }
public static function MPEGaudioHeaderDecode($Header4Bytes) { // AAAA AAAA AAAB BCCD EEEE FFGH IIJJ KLMM // A - Frame sync (all bits set) // B - MPEG Audio version ID // C - Layer description // D - Protection bit // E - Bitrate index // F - Sampling rate frequency index // G - Padding bit // H - Private bit // I - Channel Mode // J - Mode extension (Only if Joint stereo) // K - Copyright // L - Original // M - Emphasis if (strlen($Header4Bytes) != 4) { return false; } $MPEGrawHeader['synch'] = (getid3_lib::BigEndian2Int(substr($Header4Bytes, 0, 2)) & 0xffe0) >> 4; $MPEGrawHeader['version'] = (ord($Header4Bytes[1]) & 0x18) >> 3; // BB $MPEGrawHeader['layer'] = (ord($Header4Bytes[1]) & 0x6) >> 1; // CC $MPEGrawHeader['protection'] = ord($Header4Bytes[1]) & 0x1; // D $MPEGrawHeader['bitrate'] = (ord($Header4Bytes[2]) & 0xf0) >> 4; // EEEE $MPEGrawHeader['sample_rate'] = (ord($Header4Bytes[2]) & 0xc) >> 2; // FF $MPEGrawHeader['padding'] = (ord($Header4Bytes[2]) & 0x2) >> 1; // G $MPEGrawHeader['private'] = ord($Header4Bytes[2]) & 0x1; // H $MPEGrawHeader['channelmode'] = (ord($Header4Bytes[3]) & 0xc0) >> 6; // II $MPEGrawHeader['modeextension'] = (ord($Header4Bytes[3]) & 0x30) >> 4; // JJ $MPEGrawHeader['copyright'] = (ord($Header4Bytes[3]) & 0x8) >> 3; // K $MPEGrawHeader['original'] = (ord($Header4Bytes[3]) & 0x4) >> 2; // L $MPEGrawHeader['emphasis'] = ord($Header4Bytes[3]) & 0x3; // MM return $MPEGrawHeader; }
function TIFFendian2Int($bytestring, $byteorder) { if ($byteorder == 'Intel') { return getid3_lib::LittleEndian2Int($bytestring); } elseif ($byteorder == 'Motorola') { return getid3_lib::BigEndian2Int($bytestring); } return false; }
public function getBit() { $result = getid3_lib::BigEndian2Int(substr($this->sps, $this->currentBytes, 1)) >> 7 - $this->currentBits & 0x1; $this->skipBits(1); return $result; }
public function analyze($filename, $filesize = null, $original_filename = '') { try { if (!$this->openfile($filename, $filesize)) { return $this->info; } // Handle tags foreach (array('id3v2' => 'id3v2', 'id3v1' => 'id3v1', 'apetag' => 'ape', 'lyrics3' => 'lyrics3') as $tag_name => $tag_key) { $option_tag = 'option_tag_' . $tag_name; if ($this->{$option_tag}) { $this->include_module('tag.' . $tag_name); try { $tag_class = 'getid3_' . $tag_name; $tag = new $tag_class($this); $tag->Analyze(); } catch (getid3_exception $e) { throw $e; } } } if (isset($this->info['id3v2']['tag_offset_start'])) { $this->info['avdataoffset'] = max($this->info['avdataoffset'], $this->info['id3v2']['tag_offset_end']); } foreach (array('id3v1' => 'id3v1', 'apetag' => 'ape', 'lyrics3' => 'lyrics3') as $tag_name => $tag_key) { if (isset($this->info[$tag_key]['tag_offset_start'])) { $this->info['avdataend'] = min($this->info['avdataend'], $this->info[$tag_key]['tag_offset_start']); } } // ID3v2 detection (NOT parsing), even if ($this->option_tag_id3v2 == false) done to make fileformat easier if (!$this->option_tag_id3v2) { fseek($this->fp, 0); $header = fread($this->fp, 10); if (substr($header, 0, 3) == 'ID3' && strlen($header) == 10) { $this->info['id3v2']['header'] = true; $this->info['id3v2']['majorversion'] = ord($header[3]); $this->info['id3v2']['minorversion'] = ord($header[4]); $this->info['avdataoffset'] += getid3_lib::BigEndian2Int(substr($header, 6, 4), 1) + 10; // length of ID3v2 tag in 10-byte header doesn't include 10-byte header length } } // read 32 kb file data fseek($this->fp, $this->info['avdataoffset']); $formattest = fread($this->fp, 32774); // determine format $determined_format = $this->GetFileFormat($formattest, $original_filename ? $original_filename : $filename); // unable to determine file format if (!$determined_format) { fclose($this->fp); return $this->error('unable to determine file format'); } // check for illegal ID3 tags if (isset($determined_format['fail_id3']) && (in_array('id3v1', $this->info['tags']) || in_array('id3v2', $this->info['tags']))) { if ($determined_format['fail_id3'] === 'ERROR') { fclose($this->fp); return $this->error('ID3 tags not allowed on this file type.'); } elseif ($determined_format['fail_id3'] === 'WARNING') { $this->warning('ID3 tags not allowed on this file type.'); } } // check for illegal APE tags if (isset($determined_format['fail_ape']) && in_array('ape', $this->info['tags'])) { if ($determined_format['fail_ape'] === 'ERROR') { fclose($this->fp); return $this->error('APE tags not allowed on this file type.'); } elseif ($determined_format['fail_ape'] === 'WARNING') { $this->warning('APE tags not allowed on this file type.'); } } // set mime type $this->info['mime_type'] = $determined_format['mime_type']; // supported format signature pattern detected, but module deleted if (!file_exists(GETID3_INCLUDEPATH . $determined_format['include'])) { fclose($this->fp); return $this->error('Format not supported, module "' . $determined_format['include'] . '" was removed.'); } // module requires iconv support // Check encoding/iconv support if (!empty($determined_format['iconv_req']) && !function_exists('iconv') && !in_array($this->encoding, array('ISO-8859-1', 'UTF-8', 'UTF-16LE', 'UTF-16BE', 'UTF-16'))) { $errormessage = 'iconv() support is required for this module (' . $determined_format['include'] . ') for encodings other than ISO-8859-1, UTF-8, UTF-16LE, UTF16-BE, UTF-16. '; if (GETID3_OS_ISWINDOWS) { $errormessage .= 'PHP does not have iconv() support. Please enable php_iconv.dll in php.ini, and copy iconv.dll from c:/php/dlls to c:/windows/system32'; } else { $errormessage .= 'PHP is not compiled with iconv() support. Please recompile with the --with-iconv switch'; } return $this->error($errormessage); } // include module include_once GETID3_INCLUDEPATH . $determined_format['include']; // instantiate module class $class_name = 'getid3_' . $determined_format['module']; if (!class_exists($class_name)) { return $this->error('Format not supported, module "' . $determined_format['include'] . '" is corrupt.'); } $class = new $class_name($this); $class->Analyze(); unset($class); // close file fclose($this->fp); // process all tags - copy to 'tags' and convert charsets if ($this->option_tags_process) { $this->HandleAllTags(); } // perform more calculations if ($this->option_extra_info) { $this->ChannelsBitratePlaytimeCalculations(); $this->CalculateCompressionRatioVideo(); $this->CalculateCompressionRatioAudio(); $this->CalculateReplayGain(); $this->ProcessAudioStreams(); } // get the MD5 sum of the audio/video portion of the file - without ID3/APE/Lyrics3/etc header/footer tags if ($this->option_md5_data) { // do not calc md5_data if md5_data_source is present - set by flac only - future MPC/SV8 too if (!$this->option_md5_data_source || empty($this->info['md5_data_source'])) { $this->getHashdata('md5'); } } // get the SHA1 sum of the audio/video portion of the file - without ID3/APE/Lyrics3/etc header/footer tags if ($this->option_sha1_data) { $this->getHashdata('sha1'); } // remove undesired keys $this->CleanUp(); } catch (Exception $e) { $this->error('Caught exception: ' . $e->getMessage()); } // return info array return $this->info; }
private function FLACparsePICTURE($meta_data_block_data) { $getid3 = $this->getid3; $picture =& $getid3->info['flac']['PICTURE'][sizeof($getid3->info['flac']['PICTURE']) - 1]; $offset = 0; $picture['type'] = $this->FLACpictureTypeLookup(getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4))); $offset += 4; $length = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['mime_type'] = substr($meta_data_block_data, $offset, $length); $offset += $length; $length = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['description'] = substr($meta_data_block_data, $offset, $length); $offset += $length; $picture['width'] = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['height'] = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['color_depth'] = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['colors_indexed'] = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $length = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['image_data'] = substr($meta_data_block_data, $offset, $length); $offset += $length; unset($getid3->info['flac']['PICTURE']['raw']); return true; }
function Analyze() { $info =& $this->getid3->info; fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $LPACheader = fread($this->getid3->fp, 14); if (substr($LPACheader, 0, 4) != 'LPAC') { $info['error'][] = 'Expected "LPAC" at offset ' . $info['avdataoffset'] . ', found "' . $StreamMarker . '"'; return false; } $info['avdataoffset'] += 14; $info['fileformat'] = 'lpac'; $info['audio']['dataformat'] = 'lpac'; $info['audio']['lossless'] = true; $info['audio']['bitrate_mode'] = 'vbr'; $info['lpac']['file_version'] = getid3_lib::BigEndian2Int(substr($LPACheader, 4, 1)); $flags['audio_type'] = getid3_lib::BigEndian2Int(substr($LPACheader, 5, 1)); $info['lpac']['total_samples'] = getid3_lib::BigEndian2Int(substr($LPACheader, 6, 4)); $flags['parameters'] = getid3_lib::BigEndian2Int(substr($LPACheader, 10, 4)); $info['lpac']['flags']['is_wave'] = (bool) ($flags['audio_type'] & 0x40); $info['lpac']['flags']['stereo'] = (bool) ($flags['audio_type'] & 0x4); $info['lpac']['flags']['24_bit'] = (bool) ($flags['audio_type'] & 0x2); $info['lpac']['flags']['16_bit'] = (bool) ($flags['audio_type'] & 0x1); if ($info['lpac']['flags']['24_bit'] && $info['lpac']['flags']['16_bit']) { $info['warning'][] = '24-bit and 16-bit flags cannot both be set'; } $info['lpac']['flags']['fast_compress'] = (bool) ($flags['parameters'] & 0x40000000); $info['lpac']['flags']['random_access'] = (bool) ($flags['parameters'] & 0x8000000); $info['lpac']['block_length'] = pow(2, ($flags['parameters'] & 0x7000000) >> 24) * 256; $info['lpac']['flags']['adaptive_prediction_order'] = (bool) ($flags['parameters'] & 0x800000); $info['lpac']['flags']['adaptive_quantization'] = (bool) ($flags['parameters'] & 0x400000); $info['lpac']['flags']['joint_stereo'] = (bool) ($flags['parameters'] & 0x40000); $info['lpac']['quantization'] = ($flags['parameters'] & 0x1f00) >> 8; $info['lpac']['max_prediction_order'] = $flags['parameters'] & 0x3f; if ($info['lpac']['flags']['fast_compress'] && $info['lpac']['max_prediction_order'] != 3) { $info['warning'][] = 'max_prediction_order expected to be "3" if fast_compress is true, actual value is "' . $info['lpac']['max_prediction_order'] . '"'; } switch ($info['lpac']['file_version']) { case 6: if ($info['lpac']['flags']['adaptive_quantization']) { $info['warning'][] = 'adaptive_quantization expected to be false in LPAC file stucture v6, actually true'; } if ($info['lpac']['quantization'] != 20) { $info['warning'][] = 'Quantization expected to be 20 in LPAC file stucture v6, actually ' . $info['lpac']['flags']['Q']; } break; default: //$info['warning'][] = 'This version of getID3() ['.$this->getid3->version().'] only supports LPAC file format version 6, this file is version '.$info['lpac']['file_version'].' - please report to info@getid3.org'; break; } $getid3_temp = new getID3(); $getid3_temp->openfile($this->getid3->filename); $getid3_temp->info = $info; $getid3_riff = new getid3_riff($getid3_temp); $getid3_riff->Analyze(); $info['avdataoffset'] = $getid3_temp->info['avdataoffset']; $info['riff'] = $getid3_temp->info['riff']; $info['error'] = $getid3_temp->info['error']; $info['warning'] = $getid3_temp->info['warning']; $info['lpac']['comments']['comment'] = $getid3_temp->info['comments']; $info['audio']['sample_rate'] = $getid3_temp->info['audio']['sample_rate']; unset($getid3_temp, $getid3_riff); $info['audio']['channels'] = $info['lpac']['flags']['stereo'] ? 2 : 1; if ($info['lpac']['flags']['24_bit']) { $info['audio']['bits_per_sample'] = $info['riff']['audio'][0]['bits_per_sample']; } elseif ($info['lpac']['flags']['16_bit']) { $info['audio']['bits_per_sample'] = 16; } else { $info['audio']['bits_per_sample'] = 8; } if ($info['lpac']['flags']['fast_compress']) { // fast $info['audio']['encoder_options'] = '-1'; } else { switch ($info['lpac']['max_prediction_order']) { case 20: // simple $info['audio']['encoder_options'] = '-2'; break; case 30: // medium $info['audio']['encoder_options'] = '-3'; break; case 40: // high $info['audio']['encoder_options'] = '-4'; break; case 60: // extrahigh $info['audio']['encoder_options'] = '-5'; break; } } $info['playtime_seconds'] = $info['lpac']['total_samples'] / $info['audio']['sample_rate']; $info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; return true; }
function getid3_avr(&$fd, &$ThisFileInfo) { // 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 $ThisFileInfo['fileformat'] = 'avr'; fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); $AVRheader = fread($fd, 128); $ThisFileInfo['avr']['raw']['magic'] = substr($AVRheader, 0, 4); if ($ThisFileInfo['avr']['raw']['magic'] != '2BIT') { $ThisFileInfo['error'][] = 'Expecting "2BIT" at offset ' . $ThisFileInfo['avdataoffset'] . ', found "' . $ThisFileInfo['avr']['raw']['magic'] . '"'; unset($ThisFileInfo['fileformat']); unset($ThisFileInfo['avr']); return false; } $ThisFileInfo['avdataoffset'] += 128; $ThisFileInfo['avr']['sample_name'] = rtrim(substr($AVRheader, 4, 8)); $ThisFileInfo['avr']['raw']['mono'] = getid3_lib::BigEndian2Int(substr($AVRheader, 12, 2)); $ThisFileInfo['avr']['bits_per_sample'] = getid3_lib::BigEndian2Int(substr($AVRheader, 14, 2)); $ThisFileInfo['avr']['raw']['signed'] = getid3_lib::BigEndian2Int(substr($AVRheader, 16, 2)); $ThisFileInfo['avr']['raw']['loop'] = getid3_lib::BigEndian2Int(substr($AVRheader, 18, 2)); $ThisFileInfo['avr']['raw']['midi'] = getid3_lib::BigEndian2Int(substr($AVRheader, 20, 2)); $ThisFileInfo['avr']['raw']['replay_freq'] = getid3_lib::BigEndian2Int(substr($AVRheader, 22, 1)); $ThisFileInfo['avr']['sample_rate'] = getid3_lib::BigEndian2Int(substr($AVRheader, 23, 3)); $ThisFileInfo['avr']['sample_length'] = getid3_lib::BigEndian2Int(substr($AVRheader, 26, 4)); $ThisFileInfo['avr']['loop_start'] = getid3_lib::BigEndian2Int(substr($AVRheader, 30, 4)); $ThisFileInfo['avr']['loop_end'] = getid3_lib::BigEndian2Int(substr($AVRheader, 34, 4)); $ThisFileInfo['avr']['midi_split'] = getid3_lib::BigEndian2Int(substr($AVRheader, 38, 2)); $ThisFileInfo['avr']['sample_compression'] = getid3_lib::BigEndian2Int(substr($AVRheader, 40, 2)); $ThisFileInfo['avr']['reserved'] = getid3_lib::BigEndian2Int(substr($AVRheader, 42, 2)); $ThisFileInfo['avr']['sample_name_extra'] = rtrim(substr($AVRheader, 44, 20)); $ThisFileInfo['avr']['comment'] = rtrim(substr($AVRheader, 64, 64)); $ThisFileInfo['avr']['flags']['stereo'] = $ThisFileInfo['avr']['raw']['mono'] == 0 ? false : true; $ThisFileInfo['avr']['flags']['signed'] = $ThisFileInfo['avr']['raw']['signed'] == 0 ? false : true; $ThisFileInfo['avr']['flags']['loop'] = $ThisFileInfo['avr']['raw']['loop'] == 0 ? false : true; $ThisFileInfo['avr']['midi_notes'] = array(); if (($ThisFileInfo['avr']['raw']['midi'] & 0xff00) != 0xff00) { $ThisFileInfo['avr']['midi_notes'][] = ($ThisFileInfo['avr']['raw']['midi'] & 0xff00) >> 8; } if (($ThisFileInfo['avr']['raw']['midi'] & 0xff) != 0xff) { $ThisFileInfo['avr']['midi_notes'][] = $ThisFileInfo['avr']['raw']['midi'] & 0xff; } if ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset'] != $ThisFileInfo['avr']['sample_length'] * ($ThisFileInfo['avr']['bits_per_sample'] == 8 ? 1 : 2)) { $ThisFileInfo['warning'][] = 'Probable truncated file: expecting ' . $ThisFileInfo['avr']['sample_length'] * ($ThisFileInfo['avr']['bits_per_sample'] == 8 ? 1 : 2) . ' bytes of audio data, found ' . ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']); } $ThisFileInfo['audio']['dataformat'] = 'avr'; $ThisFileInfo['audio']['lossless'] = true; $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; $ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['avr']['bits_per_sample']; $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['avr']['sample_rate']; $ThisFileInfo['audio']['channels'] = $ThisFileInfo['avr']['flags']['stereo'] ? 2 : 1; $ThisFileInfo['playtime_seconds'] = $ThisFileInfo['avr']['sample_length'] / $ThisFileInfo['audio']['channels'] / $ThisFileInfo['avr']['sample_rate']; $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['avr']['sample_length'] * ($ThisFileInfo['avr']['bits_per_sample'] == 8 ? 8 : 16) / $ThisFileInfo['playtime_seconds']; return true; }
private function EitherEndian2Int($byteword, $signed = false) { if ($this->container == 'riff') { return getid3_lib::LittleEndian2Int($byteword, $signed); } return getid3_lib::BigEndian2Int($byteword, false, $signed); }
function getAACADTSheaderFilepointer($MaxFramesToScan = 1000000, $ReturnExtendedInfo = false) { $info =& $this->getid3->info; // based loosely on code from AACfile by Jurgen Faul <jfaulØgmx.de> // http://jfaul.de/atl or http://j-faul.virtualave.net/atl/atl.html // http://faac.sourceforge.net/wiki/index.php?page=ADTS // dead link // http://wiki.multimedia.cx/index.php?title=ADTS // * ADTS Fixed Header: these don't change from frame to frame // syncword 12 always: '111111111111' // ID 1 0: MPEG-4, 1: MPEG-2 // MPEG layer 2 If you send AAC in MPEG-TS, set to 0 // protection_absent 1 0: CRC present; 1: no CRC // profile 2 0: AAC Main; 1: AAC LC (Low Complexity); 2: AAC SSR (Scalable Sample Rate); 3: AAC LTP (Long Term Prediction) // sampling_frequency_index 4 15 not allowed // private_bit 1 usually 0 // channel_configuration 3 // original/copy 1 0: original; 1: copy // home 1 usually 0 // emphasis 2 only if ID == 0 (ie MPEG-4) // not present in some documentation? // * ADTS Variable Header: these can change from frame to frame // copyright_identification_bit 1 // copyright_identification_start 1 // aac_frame_length 13 length of the frame including header (in bytes) // adts_buffer_fullness 11 0x7FF indicates VBR // no_raw_data_blocks_in_frame 2 // * ADTS Error check // crc_check 16 only if protection_absent == 0 $byteoffset = $info['avdataoffset']; $framenumber = 0; // Init bit pattern array static $decbin = array(); // Populate $bindec for ($i = 0; $i < 256; $i++) { $decbin[chr($i)] = str_pad(decbin($i), 8, '0', STR_PAD_LEFT); } // used to calculate bitrate below $BitrateCache = array(); while (true) { // breaks out when end-of-file encountered, or invalid data found, // or MaxFramesToScan frames have been scanned if (!getid3_lib::intValueSupported($byteoffset)) { $info['warning'][] = 'Unable to parse AAC file beyond ' . ftell($this->getid3->fp) . ' (PHP does not support file operations beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB)'; return false; } fseek($this->getid3->fp, $byteoffset, SEEK_SET); // First get substring $substring = fread($this->getid3->fp, 9); // header is 7 bytes (or 9 if CRC is present) $substringlength = strlen($substring); if ($substringlength != 9) { $info['error'][] = 'Failed to read 7 bytes at offset ' . (ftell($this->getid3->fp) - $substringlength) . ' (only read ' . $substringlength . ' bytes)'; return false; } // this would be easier with 64-bit math, but split it up to allow for 32-bit: $header1 = getid3_lib::BigEndian2Int(substr($substring, 0, 2)); $header2 = getid3_lib::BigEndian2Int(substr($substring, 2, 4)); $header3 = getid3_lib::BigEndian2Int(substr($substring, 6, 1)); $info['aac']['header']['raw']['syncword'] = ($header1 & 0xfff0) >> 4; if ($info['aac']['header']['raw']['syncword'] != 0xfff) { $info['error'][] = 'Synch pattern (0x0FFF) not found at offset ' . (ftell($this->getid3->fp) - $substringlength) . ' (found 0x0' . strtoupper(dechex($info['aac']['header']['raw']['syncword'])) . ' instead)'; //if ($info['fileformat'] == 'aac') { // return true; //} unset($info['aac']); return false; } // Gather info for first frame only - this takes time to do 1000 times! if ($framenumber == 0) { $info['aac']['header_type'] = 'ADTS'; $info['fileformat'] = 'aac'; $info['audio']['dataformat'] = 'aac'; $info['aac']['header']['raw']['mpeg_version'] = ($header1 & 0x8) >> 3; $info['aac']['header']['raw']['mpeg_layer'] = ($header1 & 0x6) >> 1; $info['aac']['header']['raw']['protection_absent'] = ($header1 & 0x1) >> 0; $info['aac']['header']['raw']['profile_code'] = ($header2 & 0xc0000000) >> 30; $info['aac']['header']['raw']['sample_rate_code'] = ($header2 & 0x3c000000) >> 26; $info['aac']['header']['raw']['private_stream'] = ($header2 & 0x2000000) >> 25; $info['aac']['header']['raw']['channels_code'] = ($header2 & 0x1c00000) >> 22; $info['aac']['header']['raw']['original'] = ($header2 & 0x200000) >> 21; $info['aac']['header']['raw']['home'] = ($header2 & 0x100000) >> 20; $info['aac']['header']['raw']['copyright_stream'] = ($header2 & 0x80000) >> 19; $info['aac']['header']['raw']['copyright_start'] = ($header2 & 0x40000) >> 18; $info['aac']['header']['raw']['frame_length'] = ($header2 & 0x3ffe0) >> 5; $info['aac']['header']['mpeg_version'] = $info['aac']['header']['raw']['mpeg_version'] ? 2 : 4; $info['aac']['header']['crc_present'] = $info['aac']['header']['raw']['protection_absent'] ? false : true; $info['aac']['header']['profile'] = self::AACprofileLookup($info['aac']['header']['raw']['profile_code'], $info['aac']['header']['mpeg_version']); $info['aac']['header']['sample_frequency'] = self::AACsampleRateLookup($info['aac']['header']['raw']['sample_rate_code']); $info['aac']['header']['private'] = (bool) $info['aac']['header']['raw']['private_stream']; $info['aac']['header']['original'] = (bool) $info['aac']['header']['raw']['original']; $info['aac']['header']['home'] = (bool) $info['aac']['header']['raw']['home']; $info['aac']['header']['channels'] = $info['aac']['header']['raw']['channels_code'] == 7 ? 8 : $info['aac']['header']['raw']['channels_code']; if ($ReturnExtendedInfo) { $info['aac'][$framenumber]['copyright_id_bit'] = (bool) $info['aac']['header']['raw']['copyright_stream']; $info['aac'][$framenumber]['copyright_id_start'] = (bool) $info['aac']['header']['raw']['copyright_start']; } if ($info['aac']['header']['raw']['mpeg_layer'] != 0) { $info['warning'][] = 'Layer error - expected "0", found "' . $info['aac']['header']['raw']['mpeg_layer'] . '" instead'; } if ($info['aac']['header']['sample_frequency'] == 0) { $info['error'][] = 'Corrupt AAC file: sample_frequency == zero'; return false; } $info['audio']['sample_rate'] = $info['aac']['header']['sample_frequency']; $info['audio']['channels'] = $info['aac']['header']['channels']; } $FrameLength = ($header2 & 0x3ffe0) >> 5; if (!isset($BitrateCache[$FrameLength])) { $BitrateCache[$FrameLength] = $info['aac']['header']['sample_frequency'] / 1024 * $FrameLength * 8; } getid3_lib::safe_inc($info['aac']['bitrate_distribution'][$BitrateCache[$FrameLength]], 1); $info['aac'][$framenumber]['aac_frame_length'] = $FrameLength; $info['aac'][$framenumber]['adts_buffer_fullness'] = ($header2 & 0x1f) << 6 & ($header3 & 0xfc) >> 2; if ($info['aac'][$framenumber]['adts_buffer_fullness'] == 0x7ff) { $info['audio']['bitrate_mode'] = 'vbr'; } else { $info['audio']['bitrate_mode'] = 'cbr'; } $info['aac'][$framenumber]['num_raw_data_blocks'] = ($header3 & 0x3) >> 0; if ($info['aac']['header']['crc_present']) { //$info['aac'][$framenumber]['crc'] = getid3_lib::BigEndian2Int(substr($substring, 7, 2); } if (!$ReturnExtendedInfo) { unset($info['aac'][$framenumber]); } /* $rounded_precision = 5000; $info['aac']['bitrate_distribution_rounded'] = array(); foreach ($info['aac']['bitrate_distribution'] as $bitrate => $count) { $rounded_bitrate = round($bitrate / $rounded_precision) * $rounded_precision; getid3_lib::safe_inc($info['aac']['bitrate_distribution_rounded'][$rounded_bitrate], $count); } ksort($info['aac']['bitrate_distribution_rounded']); */ $byteoffset += $FrameLength; if (++$framenumber < $MaxFramesToScan && $byteoffset + 10 < $info['avdataend']) { // keep scanning } else { $info['aac']['frames'] = $framenumber; $info['playtime_seconds'] = $info['avdataend'] / $byteoffset * ($framenumber * 1024 / $info['aac']['header']['sample_frequency']); // (1 / % of file scanned) * (samples / (samples/sec)) = seconds if ($info['playtime_seconds'] == 0) { $info['error'][] = 'Corrupt AAC file: playtime_seconds == zero'; return false; } $info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; ksort($info['aac']['bitrate_distribution']); $info['audio']['encoder_options'] = $info['aac']['header_type'] . ' ' . $info['aac']['header']['profile']; return true; } } // should never get here. }
function getid3_vqf(&$fd, &$ThisFileInfo) { // based loosely on code from TTwinVQ by Jurgen Faul <jfaulØgmx*de> // http://jfaul.de/atl or http://j-faul.virtualave.net/atl/atl.html $ThisFileInfo['fileformat'] = 'vqf'; $ThisFileInfo['audio']['dataformat'] = 'vqf'; $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; $ThisFileInfo['audio']['lossless'] = false; // shortcut $ThisFileInfo['vqf']['raw'] = array(); $thisfile_vqf =& $ThisFileInfo['vqf']; $thisfile_vqf_raw =& $thisfile_vqf['raw']; fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); $VQFheaderData = fread($fd, 16); $offset = 0; $thisfile_vqf_raw['header_tag'] = substr($VQFheaderData, $offset, 4); if ($thisfile_vqf_raw['header_tag'] != 'TWIN') { $ThisFileInfo['error'][] = 'Expecting "TWIN" at offset ' . $ThisFileInfo['avdataoffset'] . ', found "' . $thisfile_vqf_raw['header_tag'] . '"'; unset($ThisFileInfo['vqf']); unset($ThisFileInfo['fileformat']); return false; } $offset += 4; $thisfile_vqf_raw['version'] = substr($VQFheaderData, $offset, 8); $offset += 8; $thisfile_vqf_raw['size'] = getid3_lib::BigEndian2Int(substr($VQFheaderData, $offset, 4)); $offset += 4; while (ftell($fd) < $ThisFileInfo['avdataend']) { $ChunkBaseOffset = ftell($fd); $chunkoffset = 0; $ChunkData = fread($fd, 8); $ChunkName = substr($ChunkData, $chunkoffset, 4); if ($ChunkName == 'DATA') { $ThisFileInfo['avdataoffset'] = $ChunkBaseOffset; break; } $chunkoffset += 4; $ChunkSize = getid3_lib::BigEndian2Int(substr($ChunkData, $chunkoffset, 4)); $chunkoffset += 4; if ($ChunkSize > $ThisFileInfo['avdataend'] - ftell($fd)) { $ThisFileInfo['error'][] = 'Invalid chunk size (' . $ChunkSize . ') for chunk "' . $ChunkName . '" at offset ' . $ChunkBaseOffset; break; } if ($ChunkSize > 0) { $ChunkData .= fread($fd, $ChunkSize); } switch ($ChunkName) { case 'COMM': // shortcut $thisfile_vqf['COMM'] = array(); $thisfile_vqf_COMM =& $thisfile_vqf['COMM']; $thisfile_vqf_COMM['channel_mode'] = getid3_lib::BigEndian2Int(substr($ChunkData, $chunkoffset, 4)); $chunkoffset += 4; $thisfile_vqf_COMM['bitrate'] = getid3_lib::BigEndian2Int(substr($ChunkData, $chunkoffset, 4)); $chunkoffset += 4; $thisfile_vqf_COMM['sample_rate'] = getid3_lib::BigEndian2Int(substr($ChunkData, $chunkoffset, 4)); $chunkoffset += 4; $thisfile_vqf_COMM['security_level'] = getid3_lib::BigEndian2Int(substr($ChunkData, $chunkoffset, 4)); $chunkoffset += 4; $ThisFileInfo['audio']['channels'] = $thisfile_vqf_COMM['channel_mode'] + 1; $ThisFileInfo['audio']['sample_rate'] = $this->VQFchannelFrequencyLookup($thisfile_vqf_COMM['sample_rate']); $ThisFileInfo['audio']['bitrate'] = $thisfile_vqf_COMM['bitrate'] * 1000; $ThisFileInfo['audio']['encoder_options'] = 'CBR' . ceil($ThisFileInfo['audio']['bitrate'] / 1000); if ($ThisFileInfo['audio']['bitrate'] == 0) { $ThisFileInfo['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': $thisfile_vqf['DSIZ'] = getid3_lib::BigEndian2Int(substr($ChunkData, 8, 4)); break; default: // [i_a] hexdump chunk because it may be ANYTHING and we don't want illegal characters to end up inside the warning text! $temp = strtr($ChunkName, "", ' '); if (preg_match('/[^ -~]/', $temp)) { $temp = unpack('H*', $temp); //$temp = implode(' ', str_split($temp[1], 8)); $temp = '0x' . $temp[1]; } $ThisFileInfo['warning'][] = 'Unhandled chunk type "' . $temp . '" at offset ' . $ChunkBaseOffset; break; } } $ThisFileInfo['playtime_seconds'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['audio']['bitrate']; if (isset($thisfile_vqf['DSIZ']) && $thisfile_vqf['DSIZ'] != $ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset'] - strlen('DATA')) { switch ($thisfile_vqf['DSIZ']) { case 0: case 1: $ThisFileInfo['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'; $ThisFileInfo['audio']['encoder'] = 'Ahead Nero'; break; default: $ThisFileInfo['warning'][] = 'Probable corrupted file - should be ' . $thisfile_vqf['DSIZ'] . ' bytes, actually ' . ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset'] - strlen('DATA')); break; } } return true; }
public function Analyze() { $info =& $this->getid3->info; $info['fileformat'] = 'ogg'; // Warn about illegal tags - only vorbiscomments are allowed if (isset($info['id3v2'])) { $info['warning'][] = 'Illegal ID3v2 tag present.'; } if (isset($info['id3v1'])) { $info['warning'][] = 'Illegal ID3v1 tag present.'; } if (isset($info['ape'])) { $info['warning'][] = 'Illegal APE tag present.'; } // Page 1 - Stream Header $this->fseek($info['avdataoffset']); $oggpageinfo = $this->ParseOggPageHeader(); $info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; if ($this->ftell() >= $this->getid3->fread_buffer_size()) { $info['error'][] = 'Could not find start of Ogg page in the first ' . $this->getid3->fread_buffer_size() . ' bytes (this might not be an Ogg-Vorbis file?)'; unset($info['fileformat']); unset($info['ogg']); return false; } $filedata = $this->fread($oggpageinfo['page_length']); $filedataoffset = 0; if (substr($filedata, 0, 4) == 'fLaC') { $info['audio']['dataformat'] = 'flac'; $info['audio']['bitrate_mode'] = 'vbr'; $info['audio']['lossless'] = true; } elseif (substr($filedata, 1, 6) == 'vorbis') { $this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo); } elseif (substr($filedata, 0, 8) == 'Speex ') { // http://www.speex.org/manual/node10.html $info['audio']['dataformat'] = 'speex'; $info['mime_type'] = 'audio/speex'; $info['audio']['bitrate_mode'] = 'abr'; $info['audio']['lossless'] = false; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_string'] = substr($filedata, $filedataoffset, 8); // hard-coded to 'Speex ' $filedataoffset += 8; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version'] = substr($filedata, $filedataoffset, 20); $filedataoffset += 20; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version_id'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['header_size'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode_bitstream_version'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['bitrate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['framesize'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['frames_per_packet'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['extra_headers'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved1'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved2'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['speex']['speex_version'] = trim($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version']); $info['speex']['sample_rate'] = $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate']; $info['speex']['channels'] = $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels']; $info['speex']['vbr'] = (bool) $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr']; $info['speex']['band_type'] = $this->SpeexBandModeLookup($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode']); $info['audio']['sample_rate'] = $info['speex']['sample_rate']; $info['audio']['channels'] = $info['speex']['channels']; if ($info['speex']['vbr']) { $info['audio']['bitrate_mode'] = 'vbr'; } } elseif (substr($filedata, 0, 7) == "€" . 'theora') { // http://www.theora.org/doc/Theora.pdf (section 6.2) $info['ogg']['pageheader']['theora']['theora_magic'] = substr($filedata, $filedataoffset, 7); // hard-coded to "\x80.'theora' $filedataoffset += 7; $info['ogg']['pageheader']['theora']['version_major'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['version_minor'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['version_revision'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['frame_width_macroblocks'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['pageheader']['theora']['frame_height_macroblocks'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['pageheader']['theora']['resolution_x'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); $filedataoffset += 3; $info['ogg']['pageheader']['theora']['resolution_y'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); $filedataoffset += 3; $info['ogg']['pageheader']['theora']['picture_offset_x'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['picture_offset_y'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['frame_rate_numerator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader']['theora']['frame_rate_denominator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader']['theora']['pixel_aspect_numerator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); $filedataoffset += 3; $info['ogg']['pageheader']['theora']['pixel_aspect_denominator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); $filedataoffset += 3; $info['ogg']['pageheader']['theora']['color_space_id'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['nominal_bitrate'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); $filedataoffset += 3; $info['ogg']['pageheader']['theora']['flags'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['pageheader']['theora']['quality'] = ($info['ogg']['pageheader']['theora']['flags'] & 0xfc00) >> 10; $info['ogg']['pageheader']['theora']['kfg_shift'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x3e0) >> 5; $info['ogg']['pageheader']['theora']['pixel_format_id'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x18) >> 3; $info['ogg']['pageheader']['theora']['reserved'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x7) >> 0; // should be 0 $info['ogg']['pageheader']['theora']['color_space'] = self::TheoraColorSpace($info['ogg']['pageheader']['theora']['color_space_id']); $info['ogg']['pageheader']['theora']['pixel_format'] = self::TheoraPixelFormat($info['ogg']['pageheader']['theora']['pixel_format_id']); $info['video']['dataformat'] = 'theora'; $info['mime_type'] = 'video/ogg'; //$info['audio']['bitrate_mode'] = 'abr'; //$info['audio']['lossless'] = false; $info['video']['resolution_x'] = $info['ogg']['pageheader']['theora']['resolution_x']; $info['video']['resolution_y'] = $info['ogg']['pageheader']['theora']['resolution_y']; if ($info['ogg']['pageheader']['theora']['frame_rate_denominator'] > 0) { $info['video']['frame_rate'] = (double) $info['ogg']['pageheader']['theora']['frame_rate_numerator'] / $info['ogg']['pageheader']['theora']['frame_rate_denominator']; } if ($info['ogg']['pageheader']['theora']['pixel_aspect_denominator'] > 0) { $info['video']['pixel_aspect_ratio'] = (double) $info['ogg']['pageheader']['theora']['pixel_aspect_numerator'] / $info['ogg']['pageheader']['theora']['pixel_aspect_denominator']; } $info['warning'][] = 'Ogg Theora (v3) not fully supported in this version of getID3 [' . $this->getid3->version() . '] -- bitrate, playtime and all audio data are currently unavailable'; } elseif (substr($filedata, 0, 8) == "fishead") { // Ogg Skeleton version 3.0 Format Specification // http://xiph.org/ogg/doc/skeleton.html $filedataoffset += 8; $info['ogg']['skeleton']['fishead']['raw']['version_major'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['skeleton']['fishead']['raw']['version_minor'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fishead']['raw']['basetime_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fishead']['raw']['basetime_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fishead']['raw']['utc'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 20)); $filedataoffset += 20; $info['ogg']['skeleton']['fishead']['version'] = $info['ogg']['skeleton']['fishead']['raw']['version_major'] . '.' . $info['ogg']['skeleton']['fishead']['raw']['version_minor']; $info['ogg']['skeleton']['fishead']['presentationtime'] = $info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'] / $info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator']; $info['ogg']['skeleton']['fishead']['basetime'] = $info['ogg']['skeleton']['fishead']['raw']['basetime_numerator'] / $info['ogg']['skeleton']['fishead']['raw']['basetime_denominator']; $info['ogg']['skeleton']['fishead']['utc'] = $info['ogg']['skeleton']['fishead']['raw']['utc']; $counter = 0; do { $oggpageinfo = $this->ParseOggPageHeader(); $info['ogg']['pageheader'][$oggpageinfo['page_seqno'] . '.' . $counter++] = $oggpageinfo; $filedata = $this->fread($oggpageinfo['page_length']); $this->fseek($oggpageinfo['page_end_offset']); if (substr($filedata, 0, 8) == "fisbone") { $filedataoffset = 8; $info['ogg']['skeleton']['fisbone']['raw']['message_header_offset'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['skeleton']['fisbone']['raw']['serial_number'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['skeleton']['fisbone']['raw']['number_header_packets'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['skeleton']['fisbone']['raw']['granulerate_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fisbone']['raw']['granulerate_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fisbone']['raw']['basegranule'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fisbone']['raw']['preroll'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['skeleton']['fisbone']['raw']['granuleshift'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['skeleton']['fisbone']['raw']['padding'] = substr($filedata, $filedataoffset, 3); $filedataoffset += 3; } elseif (substr($filedata, 1, 6) == 'theora') { $info['video']['dataformat'] = 'theora1'; $info['error'][] = 'Ogg Theora (v1) not correctly handled in this version of getID3 [' . $this->getid3->version() . ']'; //break; } elseif (substr($filedata, 1, 6) == 'vorbis') { $this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo); } else { $info['error'][] = 'unexpected'; //break; } //} while ($oggpageinfo['page_seqno'] == 0); } while ($oggpageinfo['page_seqno'] == 0 && substr($filedata, 0, 8) != "fisbone"); $this->fseek($oggpageinfo['page_start_offset']); $info['error'][] = 'Ogg Skeleton not correctly handled in this version of getID3 [' . $this->getid3->version() . ']'; //return false; } else { $info['error'][] = 'Expecting either "Speex " or "vorbis" identifier strings, found "' . substr($filedata, 0, 8) . '"'; unset($info['ogg']); unset($info['mime_type']); return false; } // Page 2 - Comment Header $oggpageinfo = $this->ParseOggPageHeader(); $info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; switch ($info['audio']['dataformat']) { case 'vorbis': $filedata = $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['packet_type'] = getid3_lib::LittleEndian2Int(substr($filedata, 0, 1)); $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, 1, 6); // hard-coded to 'vorbis' $this->ParseVorbisComments(); break; case 'flac': $flac = new getid3_flac($this->getid3); if (!$flac->parseMETAdata()) { $info['error'][] = 'Failed to parse FLAC headers'; return false; } unset($flac); break; case 'speex': $this->fseek($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length'], SEEK_CUR); $this->ParseVorbisComments(); break; } // Last Page - Number of Samples if (!getid3_lib::intValueSupported($info['avdataend'])) { $info['warning'][] = 'Unable to parse Ogg end chunk file (PHP does not support file operations beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB)'; } else { $this->fseek(max($info['avdataend'] - $this->getid3->fread_buffer_size(), 0)); $LastChunkOfOgg = strrev($this->fread($this->getid3->fread_buffer_size())); if ($LastOggSpostion = strpos($LastChunkOfOgg, 'SggO')) { $this->fseek($info['avdataend'] - ($LastOggSpostion + strlen('SggO'))); $info['avdataend'] = $this->ftell(); $info['ogg']['pageheader']['eos'] = $this->ParseOggPageHeader(); $info['ogg']['samples'] = $info['ogg']['pageheader']['eos']['pcm_abs_position']; if ($info['ogg']['samples'] == 0) { $info['error'][] = 'Corrupt Ogg file: eos.number of samples == zero'; return false; } if (!empty($info['audio']['sample_rate'])) { $info['ogg']['bitrate_average'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / ($info['ogg']['samples'] / $info['audio']['sample_rate']); } } } if (!empty($info['ogg']['bitrate_average'])) { $info['audio']['bitrate'] = $info['ogg']['bitrate_average']; } elseif (!empty($info['ogg']['bitrate_nominal'])) { $info['audio']['bitrate'] = $info['ogg']['bitrate_nominal']; } elseif (!empty($info['ogg']['bitrate_min']) && !empty($info['ogg']['bitrate_max'])) { $info['audio']['bitrate'] = ($info['ogg']['bitrate_min'] + $info['ogg']['bitrate_max']) / 2; } if (isset($info['audio']['bitrate']) && !isset($info['playtime_seconds'])) { if ($info['audio']['bitrate'] == 0) { $info['error'][] = 'Corrupt Ogg file: bitrate_audio == zero'; return false; } $info['playtime_seconds'] = (double) (($info['avdataend'] - $info['avdataoffset']) * 8 / $info['audio']['bitrate']); } if (isset($info['ogg']['vendor'])) { $info['audio']['encoder'] = preg_replace('/^Encoded with /', '', $info['ogg']['vendor']); // Vorbis only if ($info['audio']['dataformat'] == 'vorbis') { // Vorbis 1.0 starts with Xiph.Org if (preg_match('/^Xiph.Org/', $info['audio']['encoder'])) { if ($info['audio']['bitrate_mode'] == 'abr') { // Set -b 128 on abr files $info['audio']['encoder_options'] = '-b ' . round($info['ogg']['bitrate_nominal'] / 1000); } elseif ($info['audio']['bitrate_mode'] == 'vbr' && $info['audio']['channels'] == 2 && $info['audio']['sample_rate'] >= 44100 && $info['audio']['sample_rate'] <= 48000) { // Set -q N on vbr files $info['audio']['encoder_options'] = '-q ' . $this->get_quality_from_nominal_bitrate($info['ogg']['bitrate_nominal']); } } if (empty($info['audio']['encoder_options']) && !empty($info['ogg']['bitrate_nominal'])) { $info['audio']['encoder_options'] = 'Nominal bitrate: ' . intval(round($info['ogg']['bitrate_nominal'] / 1000)) . 'kbps'; } } } return true; }
static function MultiByteCharString2HTML($string, $charset = 'ISO-8859-1') { $HTMLstring = ''; switch ($charset) { case 'ISO-8859-1': case 'ISO8859-1': case 'ISO-8859-15': case 'ISO8859-15': case 'cp866': case 'ibm866': case '866': case 'cp1251': case 'Windows-1251': case 'win-1251': case '1251': case 'cp1252': case 'Windows-1252': case '1252': case 'KOI8-R': case 'koi8-ru': case 'koi8r': case 'BIG5': case '950': case 'GB2312': case '936': case 'BIG5-HKSCS': case 'Shift_JIS': case 'SJIS': case '932': case 'EUC-JP': case 'EUCJP': $HTMLstring = htmlentities($string, ENT_COMPAT, $charset); break; case 'UTF-8': $strlen = strlen($string); for ($i = 0; $i < $strlen; $i++) { $char_ord_val = ord($string[$i]); $charval = 0; if ($char_ord_val < 0x80) { $charval = $char_ord_val; } elseif (($char_ord_val & 0xf0) >> 4 == 0xf && $i + 3 < $strlen) { $charval = ($char_ord_val & 0x7) << 18; $charval += (ord($string[++$i]) & 0x3f) << 12; $charval += (ord($string[++$i]) & 0x3f) << 6; $charval += ord($string[++$i]) & 0x3f; } elseif (($char_ord_val & 0xe0) >> 5 == 0x7 && $i + 2 < $strlen) { $charval = ($char_ord_val & 0xf) << 12; $charval += (ord($string[++$i]) & 0x3f) << 6; $charval += ord($string[++$i]) & 0x3f; } elseif (($char_ord_val & 0xc0) >> 6 == 0x3 && $i + 1 < $strlen) { $charval = ($char_ord_val & 0x1f) << 6; $charval += ord($string[++$i]) & 0x3f; } if ($charval >= 32 && $charval <= 127) { $HTMLstring .= htmlentities(chr($charval)); } else { $HTMLstring .= '&#' . $charval . ';'; } } break; case 'UTF-16LE': for ($i = 0; $i < strlen($string); $i += 2) { $charval = getid3_lib::LittleEndian2Int(substr($string, $i, 2)); if ($charval >= 32 && $charval <= 127) { $HTMLstring .= chr($charval); } else { $HTMLstring .= '&#' . $charval . ';'; } } break; case 'UTF-16BE': for ($i = 0; $i < strlen($string); $i += 2) { $charval = getid3_lib::BigEndian2Int(substr($string, $i, 2)); if ($charval >= 32 && $charval <= 127) { $HTMLstring .= chr($charval); } else { $HTMLstring .= '&#' . $charval . ';'; } } break; default: $HTMLstring = 'ERROR: Character set "' . $charset . '" not supported in MultiByteCharString2HTML()'; break; } return $HTMLstring; }
public function ParseMPCsv8() { // this is SV8 // http://trac.musepack.net/trac/wiki/SV8Specification $info =& $this->getid3->info; $thisfile_mpc_header =& $info['mpc']['header']; $keyNameSize = 2; $maxHandledPacketLength = 9; // specs say: "n*8; 0 < n < 10" $offset = ftell($this->getid3->fp); while ($offset < $info['avdataend']) { $thisPacket = array(); $thisPacket['offset'] = $offset; $packet_offset = 0; // Size is a variable-size field, could be 1-4 bytes (possibly more?) // read enough data in and figure out the exact size later $MPCheaderData = fread($this->getid3->fp, $keyNameSize + $maxHandledPacketLength); $packet_offset += $keyNameSize; $thisPacket['key'] = substr($MPCheaderData, 0, $keyNameSize); $thisPacket['key_name'] = $this->MPCsv8PacketName($thisPacket['key']); if ($thisPacket['key'] == $thisPacket['key_name']) { $info['error'][] = 'Found unexpected key value "' . $thisPacket['key'] . '" at offset ' . $thisPacket['offset']; return false; } $packetLength = 0; $thisPacket['packet_size'] = $this->SV8variableLengthInteger(substr($MPCheaderData, $keyNameSize), $packetLength); // includes keyname and packet_size field if ($thisPacket['packet_size'] === false) { $info['error'][] = 'Did not find expected packet length within ' . $maxHandledPacketLength . ' bytes at offset ' . ($thisPacket['offset'] + $keyNameSize); return false; } $packet_offset += $packetLength; $offset += $thisPacket['packet_size']; switch ($thisPacket['key']) { case 'SH': // Stream Header $moreBytesToRead = $thisPacket['packet_size'] - $keyNameSize - $maxHandledPacketLength; if ($moreBytesToRead > 0) { $MPCheaderData .= fread($this->getid3->fp, $moreBytesToRead); } $thisPacket['crc'] = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 4)); $packet_offset += 4; $thisPacket['stream_version'] = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 1)); $packet_offset += 1; $packetLength = 0; $thisPacket['sample_count'] = $this->SV8variableLengthInteger(substr($MPCheaderData, $packet_offset, $maxHandledPacketLength), $packetLength); $packet_offset += $packetLength; $packetLength = 0; $thisPacket['beginning_silence'] = $this->SV8variableLengthInteger(substr($MPCheaderData, $packet_offset, $maxHandledPacketLength), $packetLength); $packet_offset += $packetLength; $otherUsefulData = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 2)); $packet_offset += 2; $thisPacket['sample_frequency_raw'] = ($otherUsefulData & 0xe000) >> 13; $thisPacket['max_bands_used'] = ($otherUsefulData & 0x1f00) >> 8; $thisPacket['channels'] = (($otherUsefulData & 0xf0) >> 4) + 1; $thisPacket['ms_used'] = (bool) (($otherUsefulData & 0x8) >> 3); $thisPacket['audio_block_frames'] = ($otherUsefulData & 0x7) >> 0; $thisPacket['sample_frequency'] = $this->MPCfrequencyLookup($thisPacket['sample_frequency_raw']); $thisfile_mpc_header['mid_side_stereo'] = $thisPacket['ms_used']; $thisfile_mpc_header['sample_rate'] = $thisPacket['sample_frequency']; $thisfile_mpc_header['samples'] = $thisPacket['sample_count']; $thisfile_mpc_header['stream_version_major'] = $thisPacket['stream_version']; $info['audio']['channels'] = $thisPacket['channels']; $info['audio']['sample_rate'] = $thisPacket['sample_frequency']; $info['playtime_seconds'] = $thisPacket['sample_count'] / $thisPacket['sample_frequency']; $info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds']; break; case 'RG': // Replay Gain $moreBytesToRead = $thisPacket['packet_size'] - $keyNameSize - $maxHandledPacketLength; if ($moreBytesToRead > 0) { $MPCheaderData .= fread($this->getid3->fp, $moreBytesToRead); } $thisPacket['replaygain_version'] = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 1)); $packet_offset += 1; $thisPacket['replaygain_title_gain'] = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 2)); $packet_offset += 2; $thisPacket['replaygain_title_peak'] = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 2)); $packet_offset += 2; $thisPacket['replaygain_album_gain'] = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 2)); $packet_offset += 2; $thisPacket['replaygain_album_peak'] = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 2)); $packet_offset += 2; if ($thisPacket['replaygain_title_gain']) { $info['replay_gain']['title']['gain'] = $thisPacket['replaygain_title_gain']; } if ($thisPacket['replaygain_title_peak']) { $info['replay_gain']['title']['peak'] = $thisPacket['replaygain_title_peak']; } if ($thisPacket['replaygain_album_gain']) { $info['replay_gain']['album']['gain'] = $thisPacket['replaygain_album_gain']; } if ($thisPacket['replaygain_album_peak']) { $info['replay_gain']['album']['peak'] = $thisPacket['replaygain_album_peak']; } break; case 'EI': // Encoder Info $moreBytesToRead = $thisPacket['packet_size'] - $keyNameSize - $maxHandledPacketLength; if ($moreBytesToRead > 0) { $MPCheaderData .= fread($this->getid3->fp, $moreBytesToRead); } $profile_pns = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 1)); $packet_offset += 1; $quality_int = ($profile_pns & 0xf0) >> 4; $quality_dec = ($profile_pns & 0xe) >> 3; $thisPacket['quality'] = (double) $quality_int + $quality_dec / 8; $thisPacket['pns_tool'] = (bool) (($profile_pns & 0x1) >> 0); $thisPacket['version_major'] = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 1)); $packet_offset += 1; $thisPacket['version_minor'] = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 1)); $packet_offset += 1; $thisPacket['version_build'] = getid3_lib::BigEndian2Int(substr($MPCheaderData, $packet_offset, 1)); $packet_offset += 1; $thisPacket['version'] = $thisPacket['version_major'] . '.' . $thisPacket['version_minor'] . '.' . $thisPacket['version_build']; $info['audio']['encoder'] = 'MPC v' . $thisPacket['version'] . ' (' . ($thisPacket['version_minor'] % 2 ? 'unstable' : 'stable') . ')'; $thisfile_mpc_header['encoder_version'] = $info['audio']['encoder']; //$thisfile_mpc_header['quality'] = (float) ($thisPacket['quality'] / 1.5875); // values can range from 0.000 to 15.875, mapped to qualities of 0.0 to 10.0 $thisfile_mpc_header['quality'] = (double) ($thisPacket['quality'] - 5); // values can range from 0.000 to 15.875, of which 0..4 are "reserved/experimental", and 5..15 are mapped to qualities of 0.0 to 10.0 break; case 'SO': // Seek Table Offset $packetLength = 0; $thisPacket['seek_table_offset'] = $thisPacket['offset'] + $this->SV8variableLengthInteger(substr($MPCheaderData, $packet_offset, $maxHandledPacketLength), $packetLength); $packet_offset += $packetLength; break; case 'ST': // Seek Table // Seek Table case 'SE': // Stream End // Stream End case 'AP': // Audio Data // nothing useful here, just skip this packet $thisPacket = array(); break; default: $info['error'][] = 'Found unhandled key type "' . $thisPacket['key'] . '" at offset ' . $thisPacket['offset']; return false; break; } if (!empty($thisPacket)) { $info['mpc']['packets'][] = $thisPacket; } fseek($this->getid3->fp, $offset); } $thisfile_mpc_header['size'] = $offset; return true; }
function EitherEndian2Int(&$ThisFileInfo, $byteword, $signed = false) { if ($ThisFileInfo['fileformat'] == 'riff') { return getid3_lib::LittleEndian2Int($byteword, $signed); } return getid3_lib::BigEndian2Int($byteword, false, $signed); }
function readByte() { return getid3_lib::BigEndian2Int(substr($this->bytes, $this->pos++, 1)); }
/** * Create audio format reader * * @throws \RuntimeException * * @return \GravityMedia\Metadata\GetId3\Reader */ public function createAudioFormatReader() { // detect data offset $offset = $this->info['avdataoffset']; if (isset($this->info['id3v2']['tag_offset_start'])) { $offset = max($offset, $this->info['id3v2']['tag_offset_end']); } // length of ID3 v2 tag in 10-byte header doesn't include 10-byte header length if (!isset($this->info['id3v2'])) { fseek($this->fp, 0); $header = fread($this->fp, 10); if ('ID3' === substr($header, 0, 3) && 10 == strlen($header)) { $offset += GetId3Lib::BigEndian2Int(substr($header, 6, 4), 1) + 10; } } // read 32 kb file data fseek($this->fp, $offset, SEEK_SET); $data = fread($this->fp, 32774); // detect format $format = GetId3::getInstance()->getGetId3()->GetFileFormat($data, $this->filename); // unable to detect format if (false === $format) { GetId3::getInstance()->close(); throw new \RuntimeException(sprintf('Unable to determine file format of "%s".', $this->filename)); } // check for illegal ID3 tags if ((isset($this->info['tags']['id3v1']) || isset($this->info['tags']['id3v2'])) && isset($format['fail_id3']) && 'ERROR' === $format['fail_id3']) { GetId3::getInstance()->close(); throw new \RuntimeException('ID3 tags not allowed on this file type.'); } // check for illegal APE tags if (isset($this->info['tags']['ape']) && isset($format['fail_ape']) && 'ERROR' === $format['fail_ape']) { GetId3::getInstance()->close(); throw new \RuntimeException('APE tags not allowed on this file type.'); } return $this->createReader($format['group'], $format['module'], 'audio'); }
function Handle_EMBL_ID_SIMPLETAG(&$offset, $sub_subelement_end) { $simpletag_entry = array(); while ($offset < $sub_subelement_end) { $this->EnsureBufferHasEnoughData($EBMLdata, $offset, $EBMLdata_offset); $sub_sub_subelement_offset = $offset; $sub_sub_subelement_id = $this->readEBMLint($EBMLdata, $offset, $EBMLdata_offset); $sub_sub_subelement_idname = $this->EBMLidName($sub_sub_subelement_id); $sub_sub_subelement_length = $this->readEBMLint($EBMLdata, $offset, $EBMLdata_offset); $sub_sub_subelement_end = $offset + $sub_sub_subelement_length; switch ($sub_sub_subelement_id) { case EBML_ID_TAGNAME: case EBML_ID_TAGLANGUAGE: case EBML_ID_TAGSTRING: case EBML_ID_TAGBINARY: $simpletag_entry[$sub_sub_subelement_idname] = substr($EBMLdata, $offset - $EBMLdata_offset, $sub_sub_subelement_length); break; case EBML_ID_SIMPLETAG: $simpletag_entry[$sub_sub_subelement_idname][] = $this->Handle_EMBL_ID_SIMPLETAG($offset, $sub_sub_subelement_end); break; case EBML_ID_TAGDEFAULT: $simpletag_entry[$sub_sub_subelement_idname] = (bool) getid3_lib::BigEndian2Int(substr($EBMLdata, $offset - $EBMLdata_offset, $sub_sub_subelement_length)); break; default: $this->warnings[] = 'Unhandled tag.simpletag element [' . basename(__FILE__) . ':' . __LINE__ . '] (' . $sub_sub_subelement_id . '::' . $sub_sub_subelement_idname . ') at ' . $sub_sub_subelement_offset; break; } $offset = $sub_sub_subelement_end; } return $simpletag_entry; }