function getSWFHeaderFilepointer(&$fd, &$ThisFileInfo) { $ThisFileInfo['fileformat'] = 'swf'; $ThisFileInfo['video']['dataformat'] = 'swf'; // http://www.openswf.org/spec/SWFfileformat.html fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); $SWFheaderData = fread($fd, 12); // 12 bytes NOT including Frame_Size RECT data $ThisFileInfo['swf']['header']['signature'] = substr($SWFheaderData, 0, 3); if ($ThisFileInfo['swf']['header']['signature'] != 'FWS') { $ThisFileInfo['error'] .= "\n" . '"FWS" expected at offset ' . $ThisFileInfo['avdataoffset'] . ', "' . $ThisFileInfo['swf']['header']['signature'] . '" found instead.'; return false; } $ThisFileInfo['swf']['header']['version'] = LittleEndian2Int(substr($SWFheaderData, 3, 1)); $ThisFileInfo['swf']['header']['length'] = LittleEndian2Int(substr($SWFheaderData, 4, 4)); $FrameSizeBitsPerValue = (ord(substr($SWFheaderData, 8, 1)) & 0xf8) >> 3; $FrameSizeDataLength = ceil((5 + 4 * $FrameSizeBitsPerValue) / 8); $SWFheaderData .= fread($fd, $FrameSizeDataLength); $FrameSizeDataString = str_pad(decbin(ord(substr($SWFheaderData, 8, 1)) & 0x7), 3, '0', STR_PAD_LEFT); for ($i = 1; $i < $FrameSizeDataLength; $i++) { $FrameSizeDataString .= str_pad(decbin(ord(substr($SWFheaderData, 8 + $i, 1))), 8, '0', STR_PAD_LEFT); } list($X1, $X2, $Y1, $Y2) = explode("\n", wordwrap($FrameSizeDataString, $FrameSizeBitsPerValue, "\n", 1)); $ThisFileInfo['swf']['header']['frame_width'] = Bin2Dec($X2); $ThisFileInfo['swf']['header']['frame_height'] = Bin2Dec($Y2); $ThisFileInfo['swf']['header']['frame_delay'] = FixedPoint8_8(substr($SWFheaderData, 8 + $FrameSizeDataLength, 2)); $ThisFileInfo['swf']['header']['frame_count'] = LittleEndian2Int(substr($SWFheaderData, 10 + $FrameSizeDataLength, 2)); $ThisFileInfo['video']['resolution_x'] = round($ThisFileInfo['swf']['header']['frame_width'] / 20); $ThisFileInfo['video']['resolution_y'] = round($ThisFileInfo['swf']['header']['frame_height'] / 20); switch ($ThisFileInfo['swf']['header']['frame_delay']) { case 0: case 128: // invalid / ignore break; default: $ThisFileInfo['video']['frame_rate'] = 1 / $ThisFileInfo['swf']['header']['frame_delay']; break; } return true; }
function FixedPoint2_30($rawdata) { $binarystring = BigEndian2Bin($rawdata); return Bin2Dec(substr($binarystring, 0, 2)) + (double) (Bin2Dec(substr($binarystring, 2, 30)) / pow(2, 30)); }
function getAACADTSheaderFilepointer(&$fd, &$ThisFileInfo, $MaxFramesToScan = 1000000, $ReturnExtendedInfo = false) { // based loosely on code from AACfile by Jurgen Faul // jfaul@gmx.de http://jfaul.de/atl // http://faac.sourceforge.net/wiki/index.php?page=ADTS // * ADTS Fixed Header: these don't change from frame to frame // syncword 12 always: '111111111111' // ID 1 0: MPEG-4, 1: MPEG-2 // layer 2 always: '00' // protection_absent 1 // profile 2 // sampling_frequency_index 4 // private_bit 1 // channel_configuration 3 // original/copy 1 // home 1 // emphasis 2 only if ID == 0 (ie MPEG-4) // * 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 = 0; $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 static $BitrateCache = array(); while (true) { // breaks out when end-of-file encountered, or invalid data found, // or MaxFramesToScan frames have been scanned fseek($fd, $byteoffset, SEEK_SET); // First get substring $substring = fread($fd, 10); $substringlength = strlen($substring); if ($substringlength != 10) { $ThisFileInfo['error'] .= "\n" . 'Failed to read 10 bytes at offset ' . (ftell($fd) - $substringlength) . ' (only read ' . $substringlength . ' bytes)'; return false; } // Initialise $AACheaderBitstream $AACheaderBitstream = ''; // Loop thru substring chars for ($i = 0; $i < 10; $i++) { $AACheaderBitstream .= $decbin[$substring[$i]]; } $bitoffset = 0; $synctest = bindec(substr($AACheaderBitstream, $bitoffset, 12)); $bitoffset += 12; if ($synctest != 0xfff) { $ThisFileInfo['error'] .= "\n" . 'Synch pattern (0x0FFF) not found at offset ' . (ftell($fd) - 10) . ' (found 0x0' . strtoupper(dechex($synctest)) . ' instead)'; if ($ThisFileInfo['fileformat'] == 'aac') { return true; } return false; } // Gather info for first frame only - this takes time to do 1000 times! if ($framenumber > 0) { if (!$AACheaderBitstream[$bitoffset]) { // MPEG-4 $bitoffset += 20; } else { // MPEG-2 $bitoffset += 18; } } else { $ThisFileInfo['aac']['header_type'] = 'ADTS'; $ThisFileInfo['aac']['header']['synch'] = $synctest; $ThisFileInfo['fileformat'] = 'aac'; $ThisFileInfo['audio']['dataformat'] = 'aac'; $ThisFileInfo['aac']['header']['mpeg_version'] = substr($AACheaderBitstream, $bitoffset, 1) == '0' ? 4 : 2; $bitoffset += 1; $ThisFileInfo['aac']['header']['layer'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 2)); $bitoffset += 2; if ($ThisFileInfo['aac']['header']['layer'] != 0) { $ThisFileInfo['error'] .= "\n" . 'Layer error - expected 0x00, found 0x' . dechex($ThisFileInfo['aac']['header']['layer']) . ' instead'; return false; } $ThisFileInfo['aac']['header']['crc_present'] = substr($AACheaderBitstream, $bitoffset, 1) == '0' ? true : false; $bitoffset += 1; $ThisFileInfo['aac']['header']['profile_id'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 2)); $bitoffset += 2; $ThisFileInfo['aac']['header']['profile_text'] = AACprofileLookup($ThisFileInfo['aac']['header']['profile_id'], $ThisFileInfo['aac']['header']['mpeg_version']); $ThisFileInfo['aac']['header']['sample_frequency_index'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4)); $bitoffset += 4; $ThisFileInfo['aac']['header']['sample_frequency'] = AACsampleRateLookup($ThisFileInfo['aac']['header']['sample_frequency_index']); if ($ThisFileInfo['aac']['header']['sample_frequency'] == 0) { $ThisFileInfo['error'] .= "\n" . 'Corrupt AAC file: sample_frequency == zero'; return false; } $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['aac']['header']['sample_frequency']; $ThisFileInfo['aac']['header']['private'] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1)); $bitoffset += 1; $ThisFileInfo['aac']['header']['channel_configuration'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 3)); $bitoffset += 3; $ThisFileInfo['audio']['channels'] = $ThisFileInfo['aac']['header']['channel_configuration']; $ThisFileInfo['aac']['header']['original'] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1)); $bitoffset += 1; $ThisFileInfo['aac']['header']['home'] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1)); $bitoffset += 1; if ($ThisFileInfo['aac']['header']['mpeg_version'] == 4) { $ThisFileInfo['aac']['header']['emphasis'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 2)); $bitoffset += 2; } if ($ReturnExtendedInfo) { $ThisFileInfo['aac'][$framenumber]['copyright_id_bit'] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1)); $bitoffset += 1; $ThisFileInfo['aac'][$framenumber]['copyright_id_start'] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1)); $bitoffset += 1; } else { $bitoffset += 2; } } $FrameLength = bindec(substr($AACheaderBitstream, $bitoffset, 13)); if (!isset($BitrateCache[$FrameLength])) { $BitrateCache[$FrameLength] = $ThisFileInfo['aac']['header']['sample_frequency'] / 1024 * $FrameLength * 8; } safe_inc($ThisFileInfo['aac']['bitrate_distribution'][$BitrateCache[$FrameLength]]); $ThisFileInfo['aac'][$framenumber]['aac_frame_length'] = $FrameLength; $bitoffset += 13; $ThisFileInfo['aac'][$framenumber]['adts_buffer_fullness'] = bindec(substr($AACheaderBitstream, $bitoffset, 11)); $bitoffset += 11; if ($ThisFileInfo['aac'][$framenumber]['adts_buffer_fullness'] == 0x7ff) { $ThisFileInfo['audio']['bitrate_mode'] = 'vbr'; } else { $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; } $ThisFileInfo['aac'][$framenumber]['num_raw_data_blocks'] = bindec(substr($AACheaderBitstream, $bitoffset, 2)); $bitoffset += 2; if ($ThisFileInfo['aac']['header']['crc_present']) { //$ThisFileInfo['aac'][$framenumber]['crc'] = bindec(substr($AACheaderBitstream, $bitoffset, 16)); $bitoffset += 16; } if (!$ReturnExtendedInfo) { unset($ThisFileInfo['aac'][$framenumber]); } $byteoffset += $FrameLength; if (++$framenumber < $MaxFramesToScan && $byteoffset + 10 < $ThisFileInfo['avdataend']) { // keep scanning } else { $ThisFileInfo['aac']['frames'] = $framenumber; $ThisFileInfo['playtime_seconds'] = $ThisFileInfo['avdataend'] / $byteoffset * ($framenumber * 1024 / $ThisFileInfo['aac']['header']['sample_frequency']); // (1 / % of file scanned) * (samples / (samples/sec)) = seconds if ($ThisFileInfo['playtime_seconds'] == 0) { $ThisFileInfo['error'] .= "\n" . 'Corrupt AAC file: playtime_seconds == zero'; return false; } $ThisFileInfo['audio']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['playtime_seconds']; ksort($ThisFileInfo['aac']['bitrate_distribution']); return true; } } // should never get here. }
function ID3v2FrameProcessing($frame_name, $frame_flags, &$MP3fileInfo) { // define $frame_arrayindex once here (used for many frames), override or ignore as neccesary $frame_arrayindex = count($MP3fileInfo['id3']['id3v2']["{$frame_name}"]); // 'data', 'datalength' if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'])) { $frame_arrayindex--; } if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'])) { $frame_arrayindex--; } if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'])) { $frame_arrayindex--; } if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'])) { $frame_arrayindex--; } if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['timestampformat'])) { $frame_arrayindex--; } if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { // frame flags are not part of the ID3v2.2 standard if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3) { // Frame Header Flags // %abc00000 %ijk00000 $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['TagAlterPreservation'] = (bool) substr($frame_flags, 0, 1); // a - Tag alter preservation $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['FileAlterPreservation'] = (bool) substr($frame_flags, 1, 1); // b - File alter preservation $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['ReadOnly'] = (bool) substr($frame_flags, 2, 1); // c - Read only $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['compression'] = (bool) substr($frame_flags, 8, 1); // i - Compression $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['Encryption'] = (bool) substr($frame_flags, 9, 1); // j - Encryption $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['GroupingIdentity'] = (bool) substr($frame_flags, 10, 1); // k - Grouping identity } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 4) { // Frame Header Flags // %0abc0000 %0h00kmnp $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['TagAlterPreservation'] = (bool) substr($frame_flags, 1, 1); // a - Tag alter preservation $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['FileAlterPreservation'] = (bool) substr($frame_flags, 2, 1); // b - File alter preservation $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['ReadOnly'] = (bool) substr($frame_flags, 3, 1); // c - Read only $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['GroupingIdentity'] = (bool) substr($frame_flags, 9, 1); // h - Grouping identity $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['compression'] = (bool) substr($frame_flags, 12, 1); // k - Compression $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['Encryption'] = (bool) substr($frame_flags, 13, 1); // m - Encryption $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['Unsynchronisation'] = (bool) substr($frame_flags, 14, 1); // n - Unsynchronisation $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['DataLengthIndicator'] = (bool) substr($frame_flags, 15, 1); // p - Data length indicator } } // Frame-level de-unsynchronization - ID3v2.4 if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['Unsynchronisation'])) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = DeUnSynchronise($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); } // Frame-level de-compression if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['compression'])) { // it's on the wishlist :) } } if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'UFID' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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> $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0)); $frame_idstring = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 0, $frame_terminatorpos); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_idstring; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(chr(0))); if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'TXXX' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description; if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding))); if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'], $frame_textencoding); } if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); // $MP3fileInfo['id3']['id3v2']["$frame_name"]['data'] = substr($MP3fileInfo['id3']['id3v2']["$frame_name"]['data'], $frame_offset); // this one-line method should work, but as a safeguard against null-padded data, do it the safe way $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $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 $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); } else { // no null bytes following data, just use all data $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); } if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['compression']) || !$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['compression']) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_textencoding); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'WXXX' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding))); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding)); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $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 $frame_urldata = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 0, $frame_terminatorpos); } else { // no null bytes following data, just use all data $frame_urldata = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']; } if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['url'] = $frame_urldata; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description; if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($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> $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['url'] = trim($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3 && $frame_name == 'IPLS' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encoding'] = TextEncodingLookup('encoding', $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encodingid']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'MCDI' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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> $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); // no other special processing needed } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'ETCO' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['timestampformat'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); while ($frame_offset < strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'])) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['typeid'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['type'] = ETCOEventLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['typeid']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['timestamp'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4)); $frame_offset += 4; } if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'MLLT' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framesbetweenreferences'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 0, 2)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bytesbetweenreferences'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 2, 3)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['msbetweenreferences'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 5, 3)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsforbytesdeviation'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 8, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsformsdeviation'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 9, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 10); while ($frame_offset < strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'])) { $deviationbitstream .= BigEndian2Bin(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); } while (strlen($deviationbitstream)) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['bytedeviation'] = bindec(substr($deviationbitstream, 0, $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsforbytesdeviation'])); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['msdeviation'] = bindec(substr($deviationbitstream, $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsforbytesdeviation'], $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsformsdeviation'])); $deviationbitstream = substr($deviationbitstream, $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsforbytesdeviation'] + $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsformsdeviation']); $frame_arrayindex++; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'SYTC' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['timestampformat'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); while ($frame_offset < strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'])) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['tempo'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['tempo'] == 255) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['tempo'] += ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['timestamp'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4)); $frame_offset += 4; $frame_arrayindex++; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'USLT' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_language = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3); $frame_offset += 3; $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding))); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['language'] = $frame_language; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['languagename'] = LanguageLookup($frame_language, FALSE); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description; if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'], $frame_textencoding); } if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'], $frame_textencoding); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'SYLT' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_language = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3); $frame_offset += 3; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['timestampformat'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['contenttypeid'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['contenttype'] = SYTLContentTypeLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['contenttypeid']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['language'] = $frame_language; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['languagename'] = LanguageLookup($frame_language, FALSE); if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $timestampindex = 0; $frame_remainingdata = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); while (strlen($frame_remainingdata)) { $frame_offset = 0; $frame_terminatorpos = strpos($frame_remainingdata, TextEncodingLookup('terminator', $frame_textencoding)); if ($frame_terminatorpos === FALSE) { $frame_remainingdata = ''; } else { if (ord(substr($frame_remainingdata, $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']["{$timestampindex}"]['data'] = substr($frame_remainingdata, $frame_offset, $frame_terminatorpos - $frame_offset); if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']["{$timestampindex}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']["{$timestampindex}"]['data'], $frame_textencoding); } $frame_remainingdata = substr($frame_remainingdata, $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding))); if ($timestampindex == 0 && ord($frame_remainingdata[0]) != 0) { // timestamp probably omitted for first data item } else { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']["{$timestampindex}"]['timestamp'] = BigEndian2Int(substr($frame_remainingdata, 0, 4)); $frame_remainingdata = substr($frame_remainingdata, 4); } $timestampindex++; } } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'COMM' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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> $frame_offset = 0; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_language = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3); $frame_offset += 3; $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $frame_text = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding))); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['language'] = $frame_language; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['languagename'] = LanguageLookup($frame_language, FALSE); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = $frame_text; if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding); } if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidata'] = RoughTranslateUnicodeToASCII($frame_text, $frame_textencoding); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 4 && $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 ...) $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0)); $frame_idstring = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 0, $frame_terminatorpos); if (ord($frame_idstring) === 0) { $frame_idstring = ''; } $frame_remainingdata = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(chr(0))); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_idstring; while (strlen($frame_remainingdata)) { $frame_offset = 0; $frame_channeltypeid = substr($frame_remainingdata, $frame_offset++, 1); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['channeltypeid'] = $frame_channeltypeid; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['channeltype'] = RVA2ChannelTypeLookup($frame_channeltypeid); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['volumeadjust'] = BigEndian2Int(substr($frame_remainingdata, $frame_offset, 2)) - 0x7fff; // 16-bit signed $frame_offset += 2; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['bitspeakvolume'] = ord(substr($frame_remainingdata, $frame_offset++, 1)); $frame_bytespeakvolume = ceil($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_channeltypeid}"]['bitspeakvolume'] / 8); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['peakvolume'] = BigEndian2Int(substr($frame_remainingdata, $frame_offset, $frame_bytespeakvolume)); $frame_remainingdata = substr($frame_remainingdata, $frame_offset + $frame_bytespeakvolume); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3 && $frame_name == 'RVAD' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_incrdecrflags = BigEndian2Bin(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['right'] = (bool) substr($frame_incrdecrflags, 6, 1); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['left'] = (bool) substr($frame_incrdecrflags, 7, 1); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsvolume'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_bytesvolume = ceil($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsvolume'] / 8); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['right'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['right'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['right'] *= -1; } $frame_offset += $frame_bytesvolume; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['left'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['left'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['left'] *= -1; } $frame_offset += $frame_bytesvolume; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['right'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['left'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); if (strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']) > 0) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['rightrear'] = (bool) substr($frame_incrdecrflags, 4, 1); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['leftrear'] = (bool) substr($frame_incrdecrflags, 5, 1); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['rightrear'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['rightrear'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['rightrear'] *= -1; } $frame_offset += $frame_bytesvolume; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['leftrear'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['leftrear'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['leftrear'] *= -1; } $frame_offset += $frame_bytesvolume; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['rightrear'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['leftrear'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); if (strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']) > 0) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['center'] = (bool) substr($frame_incrdecrflags, 3, 1); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['center'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['center'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['center'] *= -1; } $frame_offset += $frame_bytesvolume; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['center'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); if (strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']) > 0) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['bass'] = (bool) substr($frame_incrdecrflags, 2, 1); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['bass'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['bass'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['bass'] *= -1; } $frame_offset += $frame_bytesvolume; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['bass'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume)); $frame_offset += $frame_bytesvolume; } } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 4 && $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; $frame_interpolationmethod = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_idstring = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_idstring) === 0) { $frame_idstring = ''; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_idstring; $frame_remainingdata = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(chr(0))); while (strlen($frame_remainingdata)) { $frame_frequency = BigEndian2Int(substr($frame_remainingdata, 0, 2)) / 2; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']["{$frame_frequency}"] = BigEndian2Int(substr($frame_remainingdata, 2, 2)); $frame_remainingdata = substr($frame_remainingdata, 4); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['interpolationmethod'] = $frame_interpolationmethod; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3 && $frame_name == 'EQUA' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['adjustmentbits'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1); $frame_adjustmentbytes = ceil($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['adjustmentbits'] / 8); $frame_remainingdata = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); while (strlen($frame_remainingdata)) { $frame_frequencystr = BigEndian2Bin(substr($frame_remainingdata, 0, 2)); $frame_incdec = (bool) substr($frame_frequencystr, 0, 1); $frame_frequency = bindec(substr($frame_frequencystr, 1, 15)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_frequency}"]['incdec'] = $frame_incdec; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_frequency}"]['adjustment'] = BigEndian2Int(substr($frame_remainingdata, 2, $frame_adjustmentbytes)); if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_frequency}"]['incdec'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_frequency}"]['adjustment'] *= -1; } $frame_remainingdata = substr($frame_remainingdata, 2 + $frame_adjustmentbytes); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'RVRB' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['left'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2)); $frame_offset += 2; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['right'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2)); $frame_offset += 2; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bouncesL'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bouncesR'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['feedbackLL'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['feedbackLR'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['feedbackRR'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['feedbackRL'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['premixLR'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['premixRL'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'APIC' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2) { $frame_imagetype = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['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 xbhoff@pacbell.net) $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_mimetype = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['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(chr(0)); } else { $frame_offset += 3; } } if ($MP3fileInfo['id3']['id3v2']['majorversion'] > 2) { $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_mimetype = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_mimetype) === 0) { $frame_mimetype = ''; } $frame_offset = $frame_terminatorpos + strlen(chr(0)); } $frame_picturetype = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['imagetype'] = $frame_imagetype; } else { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['mime'] = $frame_mimetype; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['picturetypeid'] = $frame_picturetype; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['picturetype'] = APICPictureTypeLookup($frame_picturetype); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description; if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding))); include_once GETID3_INCLUDEPATH . 'getid3.getimagesize.php'; $imagechunkcheck = GetDataImageSize($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']); if ($imagechunkcheck[2] >= 1 && $imagechunkcheck[2] <= 3) { $imagetypes = array(1 => 'image/gif', 2 => 'image/jpeg', 3 => 'image/png'); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['image_mime'] = $imagetypes["{$imagechunkcheck[2]}"]; if ($imagechunkcheck[0]) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['image_width'] = $imagechunkcheck[0]; } if ($imagechunkcheck[1]) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['image_height'] = $imagechunkcheck[1]; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['image_bytes'] = strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']); //$MP3fileInfo['id3']['id3v2']["$frame_name"]["$frame_arrayindex"]['image_offset'] = $MP3fileInfo['id3']['id3v2']["$frame_name"]['dataoffset'] + $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)) + ID3v2HeaderLength($MP3fileInfo['id3']['id3v2']['majorversion']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'GEOB' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_mimetype = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_mimetype) === 0) { $frame_mimetype = ''; } $frame_offset = $frame_terminatorpos + strlen(chr(0)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_filename = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_filename) === 0) { $frame_filename = ''; } $frame_offset = $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $frame_offset = $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['objectdata'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['mime'] = $frame_mimetype; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['filename'] = $frame_filename; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description; if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding); } unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'PCNT' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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 ...) $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = BigEndian2Int($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'POPM' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_emailaddress = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_emailaddress) === 0) { $frame_emailaddress = ''; } $frame_offset = $frame_terminatorpos + strlen(chr(0)); $frame_rating = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['email'] = $frame_emailaddress; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['rating'] = $frame_rating; if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'RBUF' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['buffersize'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3)); $frame_offset += 3; $frame_embeddedinfoflags = BigEndian2Bin(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['embededinfo'] = (bool) substr($frame_embeddedinfoflags, 7, 1); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['nexttagoffset'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_ownerid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_ownerid) === 0) { $frame_ownerid = count($MP3fileInfo['id3']['id3v2']["{$frame_name}"]) - 1; } $frame_offset = $frame_terminatorpos + strlen(chr(0)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $frame_offset = $frame_terminatorpos + strlen(chr(0)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_ownerid; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'AENC' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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; $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_ownerid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_ownerid) === 0) { $frame_ownerid == ''; } $frame_offset = $frame_terminatorpos + strlen(chr(0)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_ownerid; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['previewstart'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2)); $frame_offset += 2; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['previewlength'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2)); $frame_offset += 2; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encryptioninfo'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_ownerid}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'LINK' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $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)> $frame_offset = 0; if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['frameid'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3); $frame_offset += 3; } else { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['frameid'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4); $frame_offset += 4; } $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_url = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_url) === 0) { $frame_url = ''; } $frame_offset = $frame_terminatorpos + strlen(chr(0)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['url'] = $frame_url; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['additionaldata'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['timestampformat'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['position'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_language = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3); $frame_offset += 3; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['language'] = $frame_language; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['languagename'] = LanguageLookup($frame_language, FALSE); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); if (!$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['flags']['compression']) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['data'], $frame_textencoding); } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_pricepaid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); $frame_offset = $frame_terminatorpos + strlen(chr(0)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['pricepaid']['currencyid'] = substr($frame_pricepaid, 0, 3); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['pricepaid']['currency'] = LookupCurrency($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['pricepaid']['currencyid'], 'units'); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['pricepaid']['value'] = substr($frame_pricepaid, 3); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedate'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 8); if (!IsValidDateStampString($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedate'])) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedateunix'] = mktime(0, 0, 0, substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedate'], 4, 2), substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedate'], 6, 2), substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedate'], 0, 4)); } $frame_offset += 8; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['seller'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $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; $frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_pricestring = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); $frame_offset = $frame_terminatorpos + strlen(chr(0)); $frame_rawpricearray = explode('/', $frame_pricestring); foreach ($frame_rawpricearray as $key => $val) { $frame_currencyid = substr($val, 0, 3); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['price']["{$frame_currencyid}"]['currency'] = LookupCurrency($frame_currencyid, 'units'); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['price']["{$frame_currencyid}"]['value'] = substr($val, 3); } $frame_datestring = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 8); $frame_offset += 8; $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_contacturl = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); $frame_offset = $frame_terminatorpos + strlen(chr(0)); $frame_receivedasid = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_sellername = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_sellername) === 0) { $frame_sellername = ''; } $frame_offset = $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset); if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) { $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00 } $frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_description) === 0) { $frame_description = ''; } $frame_offset = $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)); $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_mimetype = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); $frame_offset = $frame_terminatorpos + strlen(chr(0)); $frame_sellerlogo = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['pricevaliduntil'] = $frame_datestring; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['contacturl'] = $frame_contacturl; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['receivedasid'] = $frame_receivedasid; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['receivedas'] = COMRReceivedAsLookup($frame_receivedasid); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['sellername'] = $frame_sellername; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciisellername'] = RoughTranslateUnicodeToASCII($frame_sellername, $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['mime'] = $frame_mimetype; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['logo'] = $frame_sellerlogo; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $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; $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_ownerid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_ownerid) === 0) { $frame_ownerid = ''; } $frame_offset = $frame_terminatorpos + strlen(chr(0)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_ownerid; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['methodsymbol'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $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; $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_ownerid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_ownerid) === 0) { $frame_ownerid = ''; } $frame_offset = $frame_terminatorpos + strlen(chr(0)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_ownerid; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['groupsymbol'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $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; $frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset); $frame_ownerid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset); if (ord($frame_ownerid) === 0) { $frame_ownerid = ''; } $frame_offset = $frame_terminatorpos + strlen(chr(0)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_ownerid; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 4 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['groupsymbol'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']; unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 4 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 4 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datastart'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4)); $frame_offset += 4; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['indexeddatalength'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4)); $frame_offset += 4; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['indexpoints'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2)); $frame_offset += 2; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsperpoint'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1)); $frame_bytesperpoint = ceil($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsperpoint'] / 8); for ($i = 0; $i < $frame_indexpoints; $i++) { $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['indexes']["{$i}"] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesperpoint)); $frame_offset += $frame_bytesperpoint; } $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); } else { if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $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; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakamplitude'] = BigEndian2Float(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4)); $frame_offset += 4; $radioadjustment = Dec2Bin(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2)); $frame_offset += 2; $audiophileadjustment = Dec2Bin(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2)); $frame_offset += 2; $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['name'] = Bin2Dec(substr($radioadjustment, 0, 3)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['originator'] = Bin2Dec(substr($radioadjustment, 3, 3)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['signbit'] = Bin2Dec(substr($radioadjustment, 6, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['adjustment'] = Bin2Dec(substr($radioadjustment, 7, 9)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['name'] = Bin2Dec(substr($audiophileadjustment, 0, 3)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['originator'] = Bin2Dec(substr($audiophileadjustment, 3, 3)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['signbit'] = Bin2Dec(substr($audiophileadjustment, 6, 1)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['adjustment'] = Bin2Dec(substr($audiophileadjustment, 7, 9)); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['radio']['name'] = RGADnameLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['name']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['radio']['originator'] = RGADoriginatorLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['originator']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['radio']['adjustment'] = RGADadjustmentLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['adjustment'], $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['signbit']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['audiophile']['name'] = RGADnameLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['name']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['audiophile']['originator'] = RGADoriginatorLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['originator']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['audiophile']['adjustment'] = RGADadjustmentLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['adjustment'], $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['signbit']); $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name); unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']); } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } return TRUE; }
function BigEndian2Float($byteword) { // ANSI/IEEE Standard 754-1985, Standard for Binary Floating Point Arithmetic // http://www.psc.edu/general/software/packages/ieee/ieee.html // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee.html $bitword = BigEndian2Bin($byteword); $signbit = $bitword[0]; if (strlen($byteword) == 4) { // 32-bit DWORD $exponentbits = 8; $fractionbits = 23; } else { if (strlen($byteword) == 8) { // 64-bit QWORD $exponentbits = 11; $fractionbits = 52; } else { return FALSE; } } $exponentstring = substr($bitword, 1, $exponentbits); $fractionstring = substr($bitword, 9, $fractionbits); $exponent = Bin2Dec($exponentstring); $fraction = Bin2Dec($fractionstring); if ($exponent == pow(2, $exponentbits) - 1 && $fraction != 0) { // Not a Number $floatvalue = FALSE; } else { if ($exponent == pow(2, $exponentbits) - 1 && $fraction == 0) { if ($signbit == '1') { $floatvalue = '-infinity'; } else { $floatvalue = '+infinity'; } } else { if ($exponent == 0 && $fraction == 0) { if ($signbit == '1') { $floatvalue = -0; } else { $floatvalue = 0; } $floatvalue = $signbit ? 0 : -0; } else { if ($exponent == 0 && $fraction != 0) { // These are 'unnormalized' values $floatvalue = pow(2, -1 * (pow(2, $exponentbits - 1) - 2)) * DecimalBinary2Float($fractionstring); if ($signbit == '1') { $floatvalue *= -1; } } else { if ($exponent != 0) { $floatvalue = pow(2, $exponent - (pow(2, $exponentbits - 1) - 1)) * (1 + DecimalBinary2Float($fractionstring)); if ($signbit == '1') { $floatvalue *= -1; } } } } } } return (double) $floatvalue; }
function getRIFFHeaderFilepointer(&$fd, &$ThisFileInfo) { $Original['avdataoffset'] = $ThisFileInfo['avdataoffset']; $Original['avdataend'] = $ThisFileInfo['avdataend']; fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); $RIFFheader = fread($fd, 12); switch (substr($RIFFheader, 0, 4)) { case 'FORM': $ThisFileInfo['fileformat'] = 'aiff'; $RIFFheaderSize = EitherEndian2Int($ThisFileInfo, substr($RIFFheader, 4, 4)); $ThisFileInfo['RIFF'][substr($RIFFheader, 8, 4)] = ParseRIFF($fd, $ThisFileInfo['avdataoffset'] + 12, $ThisFileInfo['avdataoffset'] + $RIFFheaderSize, $ThisFileInfo); $ThisFileInfo['RIFF']['header_size'] = $RIFFheaderSize; break; case 'RIFF': case 'SDSS': // SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com) // SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com) case 'RMP3': // RMP3 is identical to RIFF, just renamed. Used by [unknown program] when creating RIFF-MP3s $RIFFtype = substr($RIFFheader, 8, 4); if ($RIFFtype == 'RMP3') { $RIFFtype == 'WAVE'; } $ThisFileInfo['fileformat'] = 'riff'; $RIFFheaderSize = EitherEndian2Int($ThisFileInfo, substr($RIFFheader, 4, 4)); $ThisFileInfo['RIFF']["{$RIFFtype}"] = ParseRIFF($fd, $ThisFileInfo['avdataoffset'] + 12, $ThisFileInfo['avdataoffset'] + $RIFFheaderSize, $ThisFileInfo); $ThisFileInfo['RIFF']['header_size'] = $RIFFheaderSize; break; default: $ThisFileInfo['error'] .= "\n" . 'Cannot parse RIFF (this is maybe not a RIFF / WAV / AVI file?)'; unset($ThisFileInfo['fileformat']); return false; break; } $streamindex = 0; $arraykeys = array_keys($ThisFileInfo['RIFF']); switch ($arraykeys[0]) { case 'WAVE': case 'RMP3': // RMP3 is identical to WAVE, just renamed. Used by [unknown program] when creating RIFF-MP3s if (empty($ThisFileInfo['audio']['bitrate_mode'])) { $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; } if (empty($ThisFileInfo['audio']['dataformat'])) { $ThisFileInfo['audio']['dataformat'] = 'wav'; } if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['data'][0]['offset'])) { $ThisFileInfo['avdataoffset'] = $ThisFileInfo['RIFF'][$arraykeys[0]]['data'][0]['offset'] + 8; $ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $ThisFileInfo['RIFF'][$arraykeys[0]]['data'][0]['size']; } if (isset($ThisFileInfo['RIFF']['WAVE']['fmt '][0]['data'])) { $ThisFileInfo['RIFF']['audio'][$streamindex] = RIFFparseWAVEFORMATex($ThisFileInfo['RIFF']['WAVE']['fmt '][0]['data']); if ($ThisFileInfo['RIFF']['audio'][$streamindex] == 0) { $ThisFileInfo['error'] .= 'Corrupt RIFF file: bitrate_audio == zero'; return false; } $ThisFileInfo['RIFF']['raw']['fmt '] = $ThisFileInfo['RIFF']['audio'][$streamindex]['raw']; unset($ThisFileInfo['RIFF']['audio'][$streamindex]['raw']); $ThisFileInfo['audio'] = array_merge_noclobber($ThisFileInfo['audio'], $ThisFileInfo['RIFF']['audio'][$streamindex]); if (substr($ThisFileInfo['audio']['codec'], 0, strlen('unknown: 0x')) == 'unknown: 0x') { $ThisFileInfo['warning'] .= "\n" . 'Audio codec = ' . $ThisFileInfo['audio']['codec']; } $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['RIFF']['audio'][$streamindex]['bitrate']; if ($ThisFileInfo['audio']['bits_per_sample'] == 0) { unset($ThisFileInfo['audio']['bits_per_sample']); } $ThisFileInfo['playtime_seconds'] = (double) (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['audio']['bitrate']); if (isset($ThisFileInfo['RIFF']['WAVE']['data'][0]['offset']) && isset($ThisFileInfo['RIFF']['raw']['fmt ']['wFormatTag'])) { $ThisFileInfo['audio']['lossless'] = false; switch ($ThisFileInfo['RIFF']['raw']['fmt ']['wFormatTag']) { case 1: // PCM $ThisFileInfo['audio']['lossless'] = true; break; default: // do nothing break; } } } if (isset($ThisFileInfo['RIFF']['WAVE']['rgad'][0]['data'])) { require_once GETID3_INCLUDEPATH . 'getid3.rgad.php'; $rgadData = $ThisFileInfo['RIFF']['WAVE']['rgad'][0]['data']; $ThisFileInfo['RIFF']['raw']['rgad']['fPeakAmplitude'] = LittleEndian2Float(substr($rgadData, 0, 4)); $ThisFileInfo['RIFF']['raw']['rgad']['nRadioRgAdjust'] = EitherEndian2Int($ThisFileInfo, substr($rgadData, 4, 2)); $ThisFileInfo['RIFF']['raw']['rgad']['nAudiophileRgAdjust'] = EitherEndian2Int($ThisFileInfo, substr($rgadData, 6, 2)); $nRadioRgAdjustBitstring = str_pad(Dec2Bin($ThisFileInfo['RIFF']['raw']['rgad']['nRadioRgAdjust']), 16, '0', STR_PAD_LEFT); $nAudiophileRgAdjustBitstring = str_pad(Dec2Bin($ThisFileInfo['RIFF']['raw']['rgad']['nAudiophileRgAdjust']), 16, '0', STR_PAD_LEFT); $ThisFileInfo['RIFF']['raw']['rgad']['radio']['name'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 0, 3)); $ThisFileInfo['RIFF']['raw']['rgad']['radio']['originator'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 3, 3)); $ThisFileInfo['RIFF']['raw']['rgad']['radio']['signbit'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 6, 1)); $ThisFileInfo['RIFF']['raw']['rgad']['radio']['adjustment'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 7, 9)); $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['name'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 0, 3)); $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['originator'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 3, 3)); $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['signbit'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 6, 1)); $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['adjustment'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 7, 9)); $ThisFileInfo['RIFF']['rgad']['peakamplitude'] = $ThisFileInfo['RIFF']['raw']['rgad']['fPeakAmplitude']; if ($ThisFileInfo['RIFF']['raw']['rgad']['radio']['name'] != 0 && $ThisFileInfo['RIFF']['raw']['rgad']['radio']['originator'] != 0) { $ThisFileInfo['RIFF']['rgad']['radio']['name'] = RGADnameLookup($ThisFileInfo['RIFF']['raw']['rgad']['radio']['name']); $ThisFileInfo['RIFF']['rgad']['radio']['originator'] = RGADoriginatorLookup($ThisFileInfo['RIFF']['raw']['rgad']['radio']['originator']); $ThisFileInfo['RIFF']['rgad']['radio']['adjustment'] = RGADadjustmentLookup($ThisFileInfo['RIFF']['raw']['rgad']['radio']['adjustment'], $ThisFileInfo['RIFF']['raw']['rgad']['radio']['signbit']); } if ($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['name'] != 0 && $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['originator'] != 0) { $ThisFileInfo['RIFF']['rgad']['audiophile']['name'] = RGADnameLookup($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['name']); $ThisFileInfo['RIFF']['rgad']['audiophile']['originator'] = RGADoriginatorLookup($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['originator']); $ThisFileInfo['RIFF']['rgad']['audiophile']['adjustment'] = RGADadjustmentLookup($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['adjustment'], $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['signbit']); } } if (isset($ThisFileInfo['RIFF']['WAVE']['fact'][0]['data'])) { $ThisFileInfo['RIFF']['raw']['fact']['NumberOfSamples'] = EitherEndian2Int($ThisFileInfo, substr($ThisFileInfo['RIFF']['WAVE']['fact'][0]['data'], 0, 4)); if (isset($ThisFileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec']) && $ThisFileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec'] > 0) { $ThisFileInfo['playtime_seconds'] = (double) $ThisFileInfo['RIFF']['raw']['fact']['NumberOfSamples'] / $ThisFileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec']; } if (isset($ThisFileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec']) && $ThisFileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec']) { $ThisFileInfo['audio']['bitrate'] = CastAsInt($ThisFileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec'] * 8); } } if (isset($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'])) { $ThisFileInfo['RIFF']['WAVE']['bext'][0]['title'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 0, 256)); $ThisFileInfo['RIFF']['WAVE']['bext'][0]['author'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 256, 32)); $ThisFileInfo['RIFF']['WAVE']['bext'][0]['reference'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 288, 32)); $ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_date'] = substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 320, 10); $ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_time'] = substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 330, 8); $ThisFileInfo['RIFF']['WAVE']['bext'][0]['time_reference'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 338, 8)); $ThisFileInfo['RIFF']['WAVE']['bext'][0]['bwf_version'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 346, 1)); $ThisFileInfo['RIFF']['WAVE']['bext'][0]['reserved'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 347, 254)); $ThisFileInfo['RIFF']['WAVE']['bext'][0]['coding_history'] = explode("\r\n", trim(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 601))); $ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_date_unix'] = mktime(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_time'], 0, 2), substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_time'], 3, 2), substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_time'], 6, 2), substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_date'], 5, 2), substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_date'], 8, 2), substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_date'], 0, 4)); $ThisFileInfo['RIFF']['comments']['author'][] = $ThisFileInfo['RIFF']['WAVE']['bext'][0]['author']; $ThisFileInfo['RIFF']['comments']['title'][] = $ThisFileInfo['RIFF']['WAVE']['bext'][0]['title']; } if (isset($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['data'])) { $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['sound_information'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['data'], 0, 2)); $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['homogenous'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['sound_information'] & 0x1); if ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['homogenous']) { $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['padding'] = InverseBoolean($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['sound_information'] & 0x2); $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['22_or_44'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['sound_information'] & 0x4); $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['free_format'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['sound_information'] & 0x8); $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['nominal_frame_size'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['data'], 2, 2)); } $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['anciliary_data_length'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['data'], 6, 2)); $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['anciliary_data_def'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['data'], 8, 2)); $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['anciliary_data_left'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['anciliary_data_def'] & 0x1); $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['anciliary_data_free'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['anciliary_data_def'] & 0x2); $ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['anciliary_data_right'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['anciliary_data_def'] & 0x4); } if (isset($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'])) { $ThisFileInfo['RIFF']['WAVE']['cart'][0]['version'] = substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 0, 4); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['title'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 4, 64)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['artist'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 68, 64)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['cut_id'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 132, 64)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['client_id'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 196, 64)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['category'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 260, 64)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['classification'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 324, 64)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['out_cue'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 388, 64)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['start_date'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 452, 10)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['start_time'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 462, 8)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['end_date'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 470, 10)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['end_time'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 480, 8)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['producer_app_id'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 488, 64)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['producer_app_version'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 552, 64)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['user_defined_text'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 616, 64)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['zero_db_reference'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 680, 4), true); for ($i = 0; $i < 8; $i++) { $ThisFileInfo['RIFF']['WAVE']['cart'][0]['post_time'][$i]['usage_fourcc'] = substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 684 + $i * 8, 4); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['post_time'][$i]['timer_value'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 684 + $i * 8 + 4, 4)); } $ThisFileInfo['RIFF']['WAVE']['cart'][0]['url'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 748, 1024)); $ThisFileInfo['RIFF']['WAVE']['cart'][0]['tag_text'] = explode("\r\n", trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 1772))); $ThisFileInfo['RIFF']['comments']['artist'][] = $ThisFileInfo['RIFF']['WAVE']['cart'][0]['artist']; $ThisFileInfo['RIFF']['comments']['title'][] = $ThisFileInfo['RIFF']['WAVE']['cart'][0]['title']; } if (!isset($ThisFileInfo['audio']['bitrate']) && isset($ThisFileInfo['RIFF']['audio'][$streamindex]['bitrate'])) { $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['RIFF']['audio'][$streamindex]['bitrate']; $ThisFileInfo['playtime_seconds'] = (double) (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['audio']['bitrate']); } if (!empty($ThisFileInfo['wavpack'])) { $ThisFileInfo['audio']['dataformat'] = 'wavpack'; $ThisFileInfo['audio']['bitrate_mode'] = 'vbr'; $ThisFileInfo['audio']['encoder'] = 'WavPack v' . $ThisFileInfo['wavpack']['version']; // Reset to the way it was - RIFF parsing will have messed this up $ThisFileInfo['avdataend'] = $Original['avdataend']; $ThisFileInfo['audio']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['playtime_seconds']; fseek($fd, $ThisFileInfo['avdataoffset'] - 44, SEEK_SET); $RIFFdata = fread($fd, 44); $OrignalRIFFheaderSize = LittleEndian2Int(substr($RIFFdata, 4, 4)) + 8; $OrignalRIFFdataSize = LittleEndian2Int(substr($RIFFdata, 40, 4)) + 44; if ($OrignalRIFFheaderSize > $OrignalRIFFdataSize) { $ThisFileInfo['avdataend'] -= $OrignalRIFFheaderSize - $OrignalRIFFdataSize; fseek($fd, $ThisFileInfo['avdataend'], SEEK_SET); $RIFFdata .= fread($fd, $OrignalRIFFheaderSize - $OrignalRIFFdataSize); } // move the data chunk after all other chunks (if any) // so that the RIFF parser doesn't see EOF when trying // to skip over the data chunk $RIFFdata = substr($RIFFdata, 0, 36) . substr($RIFFdata, 44) . substr($RIFFdata, 36, 8); ParseRIFFdata($RIFFdata, $ThisFileInfo); } break; case 'AVI ': $ThisFileInfo['video']['bitrate_mode'] = 'cbr'; $ThisFileInfo['video']['dataformat'] = 'avi'; $ThisFileInfo['mime_type'] = 'video/avi'; if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['movi']['offset'])) { $ThisFileInfo['avdataoffset'] = $ThisFileInfo['RIFF'][$arraykeys[0]]['movi']['offset'] + 8; $ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $ThisFileInfo['RIFF'][$arraykeys[0]]['movi']['size']; } if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['avih'][$streamindex]['data'])) { $avihData = $ThisFileInfo['RIFF']['AVI ']['hdrl']['avih'][$streamindex]['data']; $ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 0, 4)); // frame display rate (or 0L) if ($ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] == 0) { $ThisFileInfo['error'] .= 'Corrupt RIFF file: avih.dwMicroSecPerFrame == zero'; return false; } $ThisFileInfo['RIFF']['raw']['avih']['dwMaxBytesPerSec'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 4, 4)); // max. transfer rate $ThisFileInfo['RIFF']['raw']['avih']['dwPaddingGranularity'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 8, 4)); // pad to multiples of this size; normally 2K. $ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 12, 4)); // the ever-present flags $ThisFileInfo['RIFF']['raw']['avih']['dwTotalFrames'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 16, 4)); // # frames in file $ThisFileInfo['RIFF']['raw']['avih']['dwInitialFrames'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 20, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwStreams'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 24, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwSuggestedBufferSize'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 28, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwWidth'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 32, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwHeight'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 36, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwScale'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 40, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwRate'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 44, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwStart'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 48, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwLength'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 52, 4)); $ThisFileInfo['RIFF']['raw']['avih']['flags']['hasindex'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x10); $ThisFileInfo['RIFF']['raw']['avih']['flags']['mustuseindex'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x20); $ThisFileInfo['RIFF']['raw']['avih']['flags']['interleaved'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x100); $ThisFileInfo['RIFF']['raw']['avih']['flags']['trustcktype'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x800); $ThisFileInfo['RIFF']['raw']['avih']['flags']['capturedfile'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x10000); $ThisFileInfo['RIFF']['raw']['avih']['flags']['copyrighted'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x20010); if ($ThisFileInfo['RIFF']['raw']['avih']['dwWidth'] > 0) { $ThisFileInfo['RIFF']['video'][$streamindex]['frame_width'] = $ThisFileInfo['RIFF']['raw']['avih']['dwWidth']; $ThisFileInfo['video']['resolution_x'] = $ThisFileInfo['RIFF']['video'][$streamindex]['frame_width']; } if ($ThisFileInfo['RIFF']['raw']['avih']['dwHeight'] > 0) { $ThisFileInfo['RIFF']['video'][$streamindex]['frame_height'] = $ThisFileInfo['RIFF']['raw']['avih']['dwHeight']; $ThisFileInfo['video']['resolution_y'] = $ThisFileInfo['RIFF']['video'][$streamindex]['frame_height']; } $ThisFileInfo['RIFF']['video'][$streamindex]['frame_rate'] = round(1000000 / $ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'], 3); $ThisFileInfo['video']['frame_rate'] = $ThisFileInfo['RIFF']['video'][$streamindex]['frame_rate']; } if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'][0]['data'])) { if (is_array($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'])) { for ($i = 0; $i < count($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh']); $i++) { if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'][$i]['data'])) { $strhData = $ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'][$i]['data']; $strhfccType = substr($strhData, 0, 4); if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strf'][$i]['data'])) { $strfData = $ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strf'][$i]['data']; switch ($strhfccType) { case 'auds': $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; $ThisFileInfo['audio']['dataformat'] = 'wav'; if (isset($ThisFileInfo['RIFF']['audio']) && is_array($ThisFileInfo['RIFF']['audio'])) { $streamindex = count($ThisFileInfo['RIFF']['audio']); } $ThisFileInfo['RIFF']['audio'][$streamindex] = RIFFparseWAVEFORMATex($strfData); $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex] = $ThisFileInfo['RIFF']['audio'][$streamindex]['raw']; unset($ThisFileInfo['RIFF']['audio'][$streamindex]['raw']); $ThisFileInfo['audio'] = array_merge_noclobber($ThisFileInfo['audio'], $ThisFileInfo['RIFF']['audio'][$streamindex]); $ThisFileInfo['audio']['lossless'] = false; switch ($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['wFormatTag']) { case 1: // PCM $ThisFileInfo['audio']['lossless'] = true; break; case 85: // MPEG Layer 3 $ThisFileInfo['audio']['dataformat'] = 'mp3'; break; case 8192: // AC-3 $ThisFileInfo['audio']['dataformat'] = 'ac3'; break; default: $ThisFileInfo['audio']['dataformat'] = 'wav'; break; } break; case 'iavs': case 'vids': $ThisFileInfo['RIFF']['raw']['strh'][$i]['fccType'] = substr($strhData, 0, 4); // same as $strhfccType; $ThisFileInfo['RIFF']['raw']['strh'][$i]['fccHandler'] = substr($strhData, 4, 4); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwFlags'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 8, 4)); // Contains AVITF_* flags $ThisFileInfo['RIFF']['raw']['strh'][$i]['wPriority'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 12, 2)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['wLanguage'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 14, 2)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwInitialFrames'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 16, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwScale'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 20, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwRate'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 24, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwStart'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 28, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwLength'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 32, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwSuggestedBufferSize'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 36, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwQuality'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 40, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwSampleSize'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 44, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['rcFrame'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 48, 4)); $ThisFileInfo['RIFF']['video'][$streamindex]['codec'] = RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strh'][$i]['fccHandler']); if (!$ThisFileInfo['RIFF']['video'][$streamindex]['codec'] && isset($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']) && RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc'])) { $ThisFileInfo['RIFF']['video'][$streamindex]['codec'] = RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']); } $ThisFileInfo['video']['codec'] = $ThisFileInfo['RIFF']['video'][$streamindex]['codec']; switch ($ThisFileInfo['RIFF']['raw']['strh'][$i]['fccHandler']) { case 'HFYU': // Huffman Lossless Codec // Huffman Lossless Codec case 'IRAW': // Intel YUV Uncompressed // Intel YUV Uncompressed case 'YUY2': // Uncompressed YUV 4:2:2 $ThisFileInfo['video']['lossless'] = true; break; default: $ThisFileInfo['video']['lossless'] = false; break; } switch ($strhfccType) { case 'vids': $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biSize'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 0, 4)); // number of bytes required by the BITMAPINFOHEADER structure $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biWidth'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 4, 4)); // width of the bitmap in pixels $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biHeight'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 8, 4)); // height of the bitmap in pixels. If biHeight is positive, the bitmap is a 'bottom-up' DIB and its origin is the lower left corner. If biHeight is negative, the bitmap is a 'top-down' DIB and its origin is the upper left corner $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biPlanes'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 12, 2)); // number of color planes on the target device. In most cases this value must be set to 1 $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biBitCount'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 14, 2)); // Specifies the number of bits per pixels $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc'] = substr($strfData, 16, 4); // $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biSizeImage'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 20, 4)); // size of the bitmap data section of the image (the actual pixel data, excluding BITMAPINFOHEADER and RGBQUAD structures) $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biXPelsPerMeter'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 24, 4)); // horizontal resolution, in pixels per metre, of the target device $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biYPelsPerMeter'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 28, 4)); // vertical resolution, in pixels per metre, of the target device $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biClrUsed'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 32, 4)); // actual number of color indices in the color table used by the bitmap. If this value is zero, the bitmap uses the maximum number of colors corresponding to the value of the biBitCount member for the compression mode specified by biCompression $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biClrImportant'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 36, 4)); // number of color indices that are considered important for displaying the bitmap. If this value is zero, all colors are important $ThisFileInfo['video']['bits_per_sample'] = $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biBitCount']; if ($ThisFileInfo['RIFF']['video'][$streamindex]['codec'] == 'DV') { $ThisFileInfo['RIFF']['video'][$streamindex]['dv_type'] = 2; } break; case 'iavs': $ThisFileInfo['RIFF']['video'][$streamindex]['dv_type'] = 1; break; } break; default: $ThisFileInfo['warning'] .= "\n" . 'Unhandled fccType for stream (' . $i . '): "' . $strhfccType . '"'; break; } } } if (isset($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']) && RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc'])) { $ThisFileInfo['RIFF']['video'][$streamindex]['codec'] = RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']); $ThisFileInfo['video']['codec'] = $ThisFileInfo['RIFF']['video'][$streamindex]['codec']; switch ($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']) { case 'HFYU': // Huffman Lossless Codec // Huffman Lossless Codec case 'IRAW': // Intel YUV Uncompressed // Intel YUV Uncompressed case 'YUY2': // Uncompressed YUV 4:2:2 $ThisFileInfo['video']['lossless'] = true; $ThisFileInfo['video']['bits_per_sample'] = 24; break; default: $ThisFileInfo['video']['lossless'] = false; $ThisFileInfo['video']['bits_per_sample'] = 24; break; } } } } } break; case 'CDDA': $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; $ThisFileInfo['audio']['dataformat'] = 'cda'; $ThisFileInfo['audio']['lossless'] = true; unset($ThisFileInfo['mime_type']); $ThisFileInfo['avdataoffset'] = 44; if (isset($ThisFileInfo['RIFF']['CDDA']['fmt '][0]['data'])) { $fmtData = $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['data']; $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['unknown1'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 0, 2)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['track_num'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 2, 2)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['disc_id'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 4, 4)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['start_offset_frame'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 8, 4)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_frames'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 12, 4)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['unknown6'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 16, 4)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['unknown7'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 20, 4)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['start_offset_seconds'] = (double) $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['start_offset_frame'] / 75; $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_seconds'] = (double) $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_frames'] / 75; $ThisFileInfo['comments']['track'] = $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['track_num']; $ThisFileInfo['playtime_seconds'] = $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_seconds']; // hardcoded data for CD-audio $ThisFileInfo['audio']['sample_rate'] = 44100; $ThisFileInfo['audio']['channels'] = 2; $ThisFileInfo['audio']['bits_per_sample'] = 16; $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['audio']['sample_rate'] * $ThisFileInfo['audio']['channels'] * $ThisFileInfo['audio']['bits_per_sample']; $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; } break; case 'AIFF': case 'AIFC': $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; $ThisFileInfo['audio']['dataformat'] = 'aiff'; $ThisFileInfo['audio']['lossless'] = true; $ThisFileInfo['mime_type'] = 'audio/x-aiff'; if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['SSND'][0]['offset'])) { $ThisFileInfo['avdataoffset'] = $ThisFileInfo['RIFF'][$arraykeys[0]]['SSND'][0]['offset'] + 8; $ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $ThisFileInfo['RIFF'][$arraykeys[0]]['SSND'][0]['size']; if ($ThisFileInfo['avdataend'] > $ThisFileInfo['filesize']) { if ($ThisFileInfo['avdataend'] == $ThisFileInfo['filesize'] + 1 && $ThisFileInfo['filesize'] % 2 == 1) { // structures rounded to 2-byte boundary, but dumb encoders // forget to pad end of file to make this actually work } else { $ThisFileInfo['warning'] .= "\n" . 'Probable truncated AIFF file: expecting ' . $ThisFileInfo['RIFF'][$arraykeys[0]]['SSND'][0]['size'] . ' bytes of audio data, only ' . ($ThisFileInfo['filesize'] - $ThisFileInfo['avdataoffset']) . ' bytes found'; } $ThisFileInfo['avdataend'] = $ThisFileInfo['filesize']; } } if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'])) { $ThisFileInfo['RIFF']['audio']['channels'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 0, 2), true); $ThisFileInfo['RIFF']['audio']['total_samples'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 2, 4), false); $ThisFileInfo['RIFF']['audio']['bits_per_sample'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 6, 2), true); $ThisFileInfo['RIFF']['audio']['sample_rate'] = (int) BigEndian2Float(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 8, 10)); if ($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['size'] > 18) { $ThisFileInfo['RIFF']['audio']['codec_fourcc'] = substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 18, 4); $CodecNameSize = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 22, 1), false); $ThisFileInfo['RIFF']['audio']['codec_name'] = substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 23, $CodecNameSize); if ($ThisFileInfo['RIFF']['audio']['codec_name'] == 'NONE') { $ThisFileInfo['audio']['codec'] = 'Pulse Code Modulation (PCM)'; $ThisFileInfo['audio']['lossless'] = true; } else { $ThisFileInfo['audio']['codec'] = $ThisFileInfo['RIFF']['audio']['codec_name']; $ThisFileInfo['audio']['lossless'] = false; } } $ThisFileInfo['audio']['channels'] = $ThisFileInfo['RIFF']['audio']['channels']; if ($ThisFileInfo['RIFF']['audio']['bits_per_sample'] > 0) { $ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['RIFF']['audio']['bits_per_sample']; } $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['RIFF']['audio']['sample_rate']; if ($ThisFileInfo['audio']['sample_rate'] == 0) { $ThisFileInfo['error'] .= "\n" . 'Corrupted AIFF file: sample_rate == zero'; return false; } $ThisFileInfo['playtime_seconds'] = $ThisFileInfo['RIFF']['audio']['total_samples'] / $ThisFileInfo['audio']['sample_rate']; } if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'])) { $offset = 0; $CommentCount = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'][0]['data'], $offset, 2), false); $offset += 2; for ($i = 0; $i < $CommentCount; $i++) { $ThisFileInfo['comments_raw'][$i]['timestamp'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'][0]['data'], $offset, 4), false); $offset += 4; $ThisFileInfo['comments_raw'][$i]['marker_id'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'][0]['data'], $offset, 2), true); $offset += 2; $CommentLength = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'][0]['data'], $offset, 2), false); $offset += 2; $ThisFileInfo['comments_raw'][$i]['comment'] = substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'][0]['data'], $offset, $CommentLength); $offset += $CommentLength; $ThisFileInfo['comments_raw'][$i]['timestamp_unix'] = DateMac2Unix($ThisFileInfo['comments_raw'][$i]['timestamp']); $ThisFileInfo['RIFF']['comments']['comment'][] = $ThisFileInfo['comments_raw'][$i]['comment']; } } $CommentsChunkNames = array('NAME' => 'title', 'author' => 'artist', '(c) ' => 'copyright', 'ANNO' => 'comment'); foreach ($CommentsChunkNames as $key => $value) { if (isset($ThisFileInfo['RIFF'][$arraykeys[0]][$key][0]['data'])) { $ThisFileInfo['RIFF']['comments'][$value][] = $ThisFileInfo['RIFF'][$arraykeys[0]][$key][0]['data']; } } if (isset($ThisFileInfo['RIFF']['comments'])) { CopyFormatCommentsToRootComments($ThisFileInfo['RIFF']['comments'], $ThisFileInfo, true, true, true); } break; case '8SVX': $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; $ThisFileInfo['audio']['dataformat'] = '8svx'; $ThisFileInfo['audio']['bits_per_sample'] = 8; $ThisFileInfo['audio']['channels'] = 1; // overridden below, if need be $ThisFileInfo['mime_type'] = 'audio/x-aiff'; if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['BODY'][0]['offset'])) { $ThisFileInfo['avdataoffset'] = $ThisFileInfo['RIFF'][$arraykeys[0]]['BODY'][0]['offset'] + 8; $ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $ThisFileInfo['RIFF'][$arraykeys[0]]['BODY'][0]['size']; if ($ThisFileInfo['avdataend'] > $ThisFileInfo['filesize']) { $ThisFileInfo['warning'] .= "\n" . 'Probable truncated AIFF file: expecting ' . $ThisFileInfo['RIFF'][$arraykeys[0]]['BODY'][0]['size'] . ' bytes of audio data, only ' . ($ThisFileInfo['filesize'] - $ThisFileInfo['avdataoffset']) . ' bytes found'; } } if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['offset'])) { $ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['oneShotHiSamples'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 0, 4)); $ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['repeatHiSamples'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 4, 4)); $ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['samplesPerHiCycle'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 8, 4)); $ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['samplesPerSec'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 12, 2)); $ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['ctOctave'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 14, 1)); $ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['sCompression'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 15, 1)); $ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['Volume'] = FixedPoint16_16(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 16, 4)); $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['samplesPerSec']; switch ($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['sCompression']) { case 0: $ThisFileInfo['audio']['codec'] = 'Pulse Code Modulation (PCM)'; $ThisFileInfo['audio']['lossless'] = true; $ActualBitsPerSample = 8; break; case 1: $ThisFileInfo['audio']['codec'] = 'Fibonacci-delta encoding'; $ThisFileInfo['audio']['lossless'] = false; $ActualBitsPerSample = 4; break; default: $ThisFileInfo['warning'] .= "\n" . 'Unexpected sCompression value in 8SVX.VHDR chunk - expecting 0 or 1, found "' . sCompression . '"'; break; } } if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['CHAN'][0]['data'])) { $ChannelsIndex = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['CHAN'][0]['data'], 0, 4)); switch ($ChannelsIndex) { case 6: // Stereo $ThisFileInfo['audio']['channels'] = 2; break; case 2: // Left channel only // Left channel only case 4: // Right channel only $ThisFileInfo['audio']['channels'] = 1; break; default: $ThisFileInfo['warning'] .= "\n" . 'Unexpected value in 8SVX.CHAN chunk - expecting 2 or 4 or 6, found "' . $ChannelsIndex . '"'; break; } } $CommentsChunkNames = array('NAME' => 'title', 'author' => 'artist', '(c) ' => 'copyright', 'ANNO' => 'comment'); foreach ($CommentsChunkNames as $key => $value) { if (isset($ThisFileInfo['RIFF'][$arraykeys[0]][$key][0]['data'])) { $ThisFileInfo['RIFF']['comments'][$value][] = $ThisFileInfo['RIFF'][$arraykeys[0]][$key][0]['data']; } } if (isset($ThisFileInfo['RIFF']['comments'])) { CopyFormatCommentsToRootComments($ThisFileInfo['RIFF']['comments'], $ThisFileInfo, true, true, true); } $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['audio']['sample_rate'] * $ActualBitsPerSample * $ThisFileInfo['audio']['channels']; if (!empty($ThisFileInfo['audio']['bitrate'])) { $ThisFileInfo['playtime_seconds'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / ($ThisFileInfo['audio']['bitrate'] / 8); } break; default: $ThisFileInfo['error'] .= "\n" . 'Unknown RIFF type: expecting one of (WAVE|RMP3|AVI |CDDA|AIFF|AIFC|8SVX|), found "' . $arraykeys[0] . '" instead'; unset($ThisFileInfo['fileformat']); break; } if (isset($ThisFileInfo['RIFF']['WAVE']['DISP']) && is_array($ThisFileInfo['RIFF']['WAVE']['DISP'])) { $ThisFileInfo['tags'][] = 'riff'; $ThisFileInfo['RIFF']['comments']['title'][] = trim(substr($ThisFileInfo['RIFF']['WAVE']['DISP'][count($ThisFileInfo['RIFF']['WAVE']['DISP']) - 1]['data'], 4)); } if (isset($ThisFileInfo['RIFF']['WAVE']['INFO']) && is_array($ThisFileInfo['RIFF']['WAVE']['INFO'])) { $ThisFileInfo['tags'][] = 'riff'; $RIFFinfoKeyLookup = array('IART' => 'artist', 'IGNR' => 'genre', 'ICMT' => 'comment', 'ICOP' => 'copyright', 'IENG' => 'engineers', 'IKEY' => 'keywords', 'IMED' => 'orignalmedium', 'INAM' => 'name', 'ISRC' => 'sourcesupplier', 'ITCH' => 'digitizer', 'ISBJ' => 'subject', 'ISRF' => 'digitizationsource', 'ISFT' => 'encoded_by'); foreach ($RIFFinfoKeyLookup as $key => $value) { if (isset($ThisFileInfo['RIFF']['WAVE']['INFO']["{$key}"])) { foreach ($ThisFileInfo['RIFF']['WAVE']['INFO']["{$key}"] as $commentid => $commentdata) { if (trim($commentdata['data']) != '') { $ThisFileInfo['RIFF']['comments']["{$value}"][] = trim($commentdata['data']); } } } } } if (!empty($ThisFileInfo['RIFF']['comments'])) { CopyFormatCommentsToRootComments($ThisFileInfo['RIFF']['comments'], $ThisFileInfo, true, false, true); } if (empty($ThisFileInfo['audio']['encoder']) && !empty($ThisFileInfo['mpeg']['audio']['LAME']['short_version'])) { $ThisFileInfo['audio']['encoder'] = $ThisFileInfo['mpeg']['audio']['LAME']['short_version']; } if (!isset($ThisFileInfo['playtime_seconds'])) { $ThisFileInfo['playtime_seconds'] = 0; } if (isset($ThisFileInfo['RIFF']['raw']['avih']['dwTotalFrames']) && isset($ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'])) { $ThisFileInfo['playtime_seconds'] = $ThisFileInfo['RIFF']['raw']['avih']['dwTotalFrames'] * ($ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] / 1000000); } if ($ThisFileInfo['playtime_seconds'] > 0) { if (isset($ThisFileInfo['RIFF']['audio']) && isset($ThisFileInfo['RIFF']['video'])) { if (!isset($ThisFileInfo['bitrate'])) { $ThisFileInfo['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8; } } elseif (isset($ThisFileInfo['RIFF']['audio']) && !isset($ThisFileInfo['RIFF']['video'])) { if (!isset($ThisFileInfo['audio']['bitrate'])) { $ThisFileInfo['audio']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8; } } elseif (!isset($ThisFileInfo['RIFF']['audio']) && isset($ThisFileInfo['RIFF']['video'])) { if (!isset($ThisFileInfo['video']['bitrate'])) { $ThisFileInfo['video']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8; } } } if (isset($ThisFileInfo['RIFF']['video']) && isset($ThisFileInfo['audio']['bitrate']) && $ThisFileInfo['audio']['bitrate'] > 0 && $ThisFileInfo['playtime_seconds'] > 0) { $ThisFileInfo['audio']['bitrate'] = 0; $ThisFileInfo['video']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8; foreach ($ThisFileInfo['RIFF']['audio'] as $channelnumber => $audioinfoarray) { $ThisFileInfo['video']['bitrate'] -= $audioinfoarray['bitrate']; $ThisFileInfo['audio']['bitrate'] += $audioinfoarray['bitrate']; } if ($ThisFileInfo['video']['bitrate'] <= 0) { unset($ThisFileInfo['video']['bitrate']); } if ($ThisFileInfo['audio']['bitrate'] <= 0) { unset($ThisFileInfo['audio']['bitrate']); } } if (!empty($ThisFileInfo['RIFF']['raw']['fmt ']['nBitsPerSample']) && $ThisFileInfo['RIFF']['raw']['fmt ']['nBitsPerSample'] > 0) { $ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['RIFF']['raw']['fmt ']['nBitsPerSample']; } return true; }
function FLACparseSTREAMINFO($METAdataBlockData, &$ThisFileInfo) { $offset = 0; $ThisFileInfo['flac']['STREAMINFO']['min_block_size'] = BigEndian2Int(substr($METAdataBlockData, $offset, 2)); $offset += 2; $ThisFileInfo['flac']['STREAMINFO']['max_block_size'] = BigEndian2Int(substr($METAdataBlockData, $offset, 2)); $offset += 2; $ThisFileInfo['flac']['STREAMINFO']['min_frame_size'] = BigEndian2Int(substr($METAdataBlockData, $offset, 3)); $offset += 3; $ThisFileInfo['flac']['STREAMINFO']['max_frame_size'] = BigEndian2Int(substr($METAdataBlockData, $offset, 3)); $offset += 3; $SampleRateChannelsSampleBitsStreamSamples = BigEndian2Bin(substr($METAdataBlockData, $offset, 8)); $ThisFileInfo['flac']['STREAMINFO']['sample_rate'] = Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 0, 20)); $ThisFileInfo['flac']['STREAMINFO']['channels'] = Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 20, 3)) + 1; $ThisFileInfo['flac']['STREAMINFO']['bits_per_sample'] = Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 23, 5)) + 1; $ThisFileInfo['flac']['STREAMINFO']['samples_stream'] = Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 28, 36)); $offset += 8; $ThisFileInfo['flac']['STREAMINFO']['audio_signature'] = substr($METAdataBlockData, $offset, 16); $offset += 16; if (!empty($ThisFileInfo['flac']['STREAMINFO']['sample_rate'])) { $ThisFileInfo['audio']['bitrate_mode'] = 'vbr'; $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['flac']['STREAMINFO']['sample_rate']; $ThisFileInfo['audio']['channels'] = $ThisFileInfo['flac']['STREAMINFO']['channels']; $ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['flac']['STREAMINFO']['bits_per_sample']; $ThisFileInfo['playtime_seconds'] = $ThisFileInfo['flac']['STREAMINFO']['samples_stream'] / $ThisFileInfo['flac']['STREAMINFO']['sample_rate']; $ThisFileInfo['audio']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['playtime_seconds']; } else { $ThisFileInfo['error'] .= "\n" . 'Corrupt METAdata block: STREAMINFO'; return false; } return true; }
function getRIFFHeaderFilepointer(&$fd, &$MP3fileInfo) { $offset = 0; rewind($fd); $MP3fileInfo['RIFF'] = ParseRIFF($fd, $offset, $MP3fileInfo['filesize']); $streamindex = 0; if (!is_array($MP3fileInfo['RIFF'])) { $MP3fileInfo['error'] .= "\n" . 'Cannot parse RIFF (this is maybe not a RIFF / WAV / AVI file?)'; unset($MP3fileInfo['RIFF']); unset($MP3fileInfo['fileformat']); return FALSE; } $arraykeys = array_keys($MP3fileInfo['RIFF']); switch ($arraykeys[0]) { case 'WAVE': $MP3fileInfo['fileformat'] = 'wav'; if (isset($MP3fileInfo['RIFF']['WAVE']['fmt '][0]['data'])) { $fmtData = $MP3fileInfo['RIFF']['WAVE']['fmt '][0]['data']; $MP3fileInfo['RIFF']['raw']['fmt ']['wFormatTag'] = LittleEndian2Int(substr($fmtData, 0, 2)); $MP3fileInfo['RIFF']['raw']['fmt ']['nChannels'] = LittleEndian2Int(substr($fmtData, 2, 2)); $MP3fileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec'] = LittleEndian2Int(substr($fmtData, 4, 4)); $MP3fileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec'] = LittleEndian2Int(substr($fmtData, 8, 4)); $MP3fileInfo['RIFF']['raw']['fmt ']['nBlockAlign'] = LittleEndian2Int(substr($fmtData, 12, 2)); $MP3fileInfo['RIFF']['raw']['fmt ']['nBitsPerSample'] = LittleEndian2Int(substr($fmtData, 14, 2)); $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['format'] = RIFFwFormatTagLookup($MP3fileInfo['RIFF']['raw']['fmt ']['wFormatTag']); $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['channels'] = $MP3fileInfo['RIFF']['raw']['fmt ']['nChannels']; $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['channelmode'] = $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['channels'] == 1 ? 'mono' : 'stereo'; $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['frequency'] = $MP3fileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec']; $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['bitrate'] = $MP3fileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec'] * 8; $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['bitspersample'] = $MP3fileInfo['RIFF']['raw']['fmt ']['nBitsPerSample']; } if (isset($MP3fileInfo['RIFF']['WAVE']['rgad'][0]['data'])) { $rgadData = $MP3fileInfo['RIFF']['WAVE']['rgad'][0]['data']; $MP3fileInfo['RIFF']['raw']['rgad']['fPeakAmplitude'] = LittleEndian2Float(substr($rgadData, 0, 4)); $MP3fileInfo['RIFF']['raw']['rgad']['nRadioRgAdjust'] = LittleEndian2Int(substr($rgadData, 4, 2)); $MP3fileInfo['RIFF']['raw']['rgad']['nAudiophileRgAdjust'] = LittleEndian2Int(substr($rgadData, 6, 2)); $nRadioRgAdjustBitstring = str_pad(Dec2Bin($MP3fileInfo['RIFF']['raw']['rgad']['nRadioRgAdjust']), 16, '0', STR_PAD_LEFT); $nAudiophileRgAdjustBitstring = str_pad(Dec2Bin($MP3fileInfo['RIFF']['raw']['rgad']['nAudiophileRgAdjust']), 16, '0', STR_PAD_LEFT); $MP3fileInfo['RIFF']['raw']['rgad']['radio']['name'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 0, 3)); $MP3fileInfo['RIFF']['raw']['rgad']['radio']['originator'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 3, 3)); $MP3fileInfo['RIFF']['raw']['rgad']['radio']['signbit'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 6, 1)); $MP3fileInfo['RIFF']['raw']['rgad']['radio']['adjustment'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 7, 9)); $MP3fileInfo['RIFF']['raw']['rgad']['audiophile']['name'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 0, 3)); $MP3fileInfo['RIFF']['raw']['rgad']['audiophile']['originator'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 3, 3)); $MP3fileInfo['RIFF']['raw']['rgad']['audiophile']['signbit'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 6, 1)); $MP3fileInfo['RIFF']['raw']['rgad']['audiophile']['adjustment'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 7, 9)); $MP3fileInfo['RIFF']['rgad']['peakamplitude'] = $MP3fileInfo['RIFF']['raw']['rgad']['fPeakAmplitude']; if ($MP3fileInfo['RIFF']['raw']['rgad']['radio']['name'] != 0 && $MP3fileInfo['RIFF']['raw']['rgad']['radio']['originator'] != 0) { $MP3fileInfo['RIFF']['rgad']['radio']['name'] = RGADnameLookup($MP3fileInfo['RIFF']['raw']['rgad']['radio']['name']); $MP3fileInfo['RIFF']['rgad']['radio']['originator'] = RGADoriginatorLookup($MP3fileInfo['RIFF']['raw']['rgad']['radio']['originator']); $MP3fileInfo['RIFF']['rgad']['radio']['adjustment'] = RGADadjustmentLookup($MP3fileInfo['RIFF']['raw']['rgad']['radio']['adjustment'], $MP3fileInfo['RIFF']['raw']['rgad']['radio']['signbit']); } if ($MP3fileInfo['RIFF']['raw']['rgad']['audiophile']['name'] != 0 && $MP3fileInfo['RIFF']['raw']['rgad']['audiophile']['originator'] != 0) { $MP3fileInfo['RIFF']['rgad']['audiophile']['name'] = RGADnameLookup($MP3fileInfo['RIFF']['raw']['rgad']['audiophile']['name']); $MP3fileInfo['RIFF']['rgad']['audiophile']['originator'] = RGADoriginatorLookup($MP3fileInfo['RIFF']['raw']['rgad']['audiophile']['originator']); $MP3fileInfo['RIFF']['rgad']['audiophile']['adjustment'] = RGADadjustmentLookup($MP3fileInfo['RIFF']['raw']['rgad']['audiophile']['adjustment'], $MP3fileInfo['RIFF']['raw']['rgad']['audiophile']['signbit']); } } if (isset($MP3fileInfo['RIFF']['WAVE']['fact'][0]['data'])) { $MP3fileInfo['RIFF']['raw']['fact']['NumberOfSamples'] = LittleEndian2Int(substr($MP3fileInfo['RIFF']['WAVE']['fact'][0]['data'], 0, 4)); if (isset($MP3fileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec']) && $MP3fileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec']) { $MP3fileInfo['playtime_seconds'] = (double) $MP3fileInfo['RIFF']['raw']['fact']['NumberOfSamples'] / $MP3fileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec']; } if (isset($MP3fileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec']) && $MP3fileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec']) { $MP3fileInfo['audiobytes'] = CastAsInt(round($MP3fileInfo['playtime_seconds'] * $MP3fileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec'])); $MP3fileInfo['bitrate'] = CastAsInt($MP3fileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec'] * 8); } } if (!isset($MP3fileInfo['audiobytes']) && isset($MP3fileInfo['RIFF']['WAVE']['data'][0]['size'])) { $MP3fileInfo['audiobytes'] = $MP3fileInfo['RIFF']['WAVE']['data'][0]['size']; } if (!isset($MP3fileInfo['bitrate']) && isset($MP3fileInfo['RIFF']['audio']["{$streamindex}"]['bitrate']) && isset($MP3fileInfo['audiobytes'])) { $MP3fileInfo['bitrate'] = $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['bitrate']; $MP3fileInfo['playtime_seconds'] = (double) ($MP3fileInfo['audiobytes'] * 8 / $MP3fileInfo['bitrate']); } break; case 'AVI ': $MP3fileInfo['fileformat'] = 'avi'; if (isset($MP3fileInfo['RIFF']['AVI ']['hdrl']['avih']["{$streamindex}"]['data'])) { $avihData = $MP3fileInfo['RIFF']['AVI ']['hdrl']['avih']["{$streamindex}"]['data']; $MP3fileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] = LittleEndian2Int(substr($avihData, 0, 4)); // frame display rate (or 0L) $MP3fileInfo['RIFF']['raw']['avih']['dwMaxBytesPerSec'] = LittleEndian2Int(substr($avihData, 4, 4)); // max. transfer rate $MP3fileInfo['RIFF']['raw']['avih']['dwPaddingGranularity'] = LittleEndian2Int(substr($avihData, 8, 4)); // pad to multiples of this size; normally 2K. $MP3fileInfo['RIFF']['raw']['avih']['dwFlags'] = LittleEndian2Int(substr($avihData, 12, 4)); // the ever-present flags $MP3fileInfo['RIFF']['raw']['avih']['dwTotalFrames'] = LittleEndian2Int(substr($avihData, 16, 4)); // # frames in file $MP3fileInfo['RIFF']['raw']['avih']['dwInitialFrames'] = LittleEndian2Int(substr($avihData, 20, 4)); $MP3fileInfo['RIFF']['raw']['avih']['dwStreams'] = LittleEndian2Int(substr($avihData, 24, 4)); $MP3fileInfo['RIFF']['raw']['avih']['dwSuggestedBufferSize'] = LittleEndian2Int(substr($avihData, 28, 4)); $MP3fileInfo['RIFF']['raw']['avih']['dwWidth'] = LittleEndian2Int(substr($avihData, 32, 4)); $MP3fileInfo['RIFF']['raw']['avih']['dwHeight'] = LittleEndian2Int(substr($avihData, 36, 4)); $MP3fileInfo['RIFF']['raw']['avih']['dwScale'] = LittleEndian2Int(substr($avihData, 40, 4)); $MP3fileInfo['RIFF']['raw']['avih']['dwRate'] = LittleEndian2Int(substr($avihData, 44, 4)); $MP3fileInfo['RIFF']['raw']['avih']['dwStart'] = LittleEndian2Int(substr($avihData, 48, 4)); $MP3fileInfo['RIFF']['raw']['avih']['dwLength'] = LittleEndian2Int(substr($avihData, 52, 4)); $MP3fileInfo['RIFF']['raw']['avih']['flags']['hasindex'] = (bool) ($MP3fileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x10); $MP3fileInfo['RIFF']['raw']['avih']['flags']['mustuseindex'] = (bool) ($MP3fileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x20); $MP3fileInfo['RIFF']['raw']['avih']['flags']['interleaved'] = (bool) ($MP3fileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x100); $MP3fileInfo['RIFF']['raw']['avih']['flags']['trustcktype'] = (bool) ($MP3fileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x800); $MP3fileInfo['RIFF']['raw']['avih']['flags']['capturedfile'] = (bool) ($MP3fileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x10000); $MP3fileInfo['RIFF']['raw']['avih']['flags']['copyrighted'] = (bool) ($MP3fileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x20010); $MP3fileInfo['RIFF']['video']["{$streamindex}"]['frame_width'] = $MP3fileInfo['RIFF']['raw']['avih']['dwWidth']; $MP3fileInfo['RIFF']['video']["{$streamindex}"]['frame_height'] = $MP3fileInfo['RIFF']['raw']['avih']['dwHeight']; $MP3fileInfo['RIFF']['video']["{$streamindex}"]['frame_rate'] = round(1000000 / $MP3fileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'], 3); $MP3fileInfo['playtime_seconds'] = $MP3fileInfo['RIFF']['raw']['avih']['dwTotalFrames'] * ($MP3fileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] / 1000000); $MP3fileInfo['bitrate'] = $MP3fileInfo['filesize'] / $MP3fileInfo['playtime_seconds'] * 8; } if (isset($MP3fileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'][0]['data'])) { if (is_array($MP3fileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'])) { for ($i = 0; $i < count($MP3fileInfo['RIFF']['AVI ']['hdrl']['strl']['strh']); $i++) { if (isset($MP3fileInfo['RIFF']['AVI ']['hdrl']['strl']['strh']["{$i}"]['data'])) { $strhData = $MP3fileInfo['RIFF']['AVI ']['hdrl']['strl']['strh']["{$i}"]['data']; $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['fccType'] = substr($strhData, 0, 4); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['fccHandler'] = substr($strhData, 4, 4); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['dwFlags'] = LittleEndian2Int(substr($strhData, 8, 4)); // Contains AVITF_* flags $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['wPriority'] = LittleEndian2Int(substr($strhData, 12, 2)); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['wLanguage'] = LittleEndian2Int(substr($strhData, 14, 2)); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['dwInitialFrames'] = LittleEndian2Int(substr($strhData, 16, 4)); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['dwScale'] = LittleEndian2Int(substr($strhData, 20, 4)); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['dwRate'] = LittleEndian2Int(substr($strhData, 24, 4)); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['dwStart'] = LittleEndian2Int(substr($strhData, 28, 4)); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['dwLength'] = LittleEndian2Int(substr($strhData, 32, 4)); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['dwSuggestedBufferSize'] = LittleEndian2Int(substr($strhData, 36, 4)); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['dwQuality'] = LittleEndian2Int(substr($strhData, 40, 4)); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['dwSampleSize'] = LittleEndian2Int(substr($strhData, 44, 4)); $MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['rcFrame'] = LittleEndian2Int(substr($strhData, 48, 4)); if (isset($MP3fileInfo['RIFF']['AVI ']['hdrl']['strl']['strf']["{$i}"]['data'])) { $strfData = $MP3fileInfo['RIFF']['AVI ']['hdrl']['strl']['strf']["{$i}"]['data']; switch ($MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['fccType']) { case 'auds': if (isset($MP3fileInfo['RIFF']['audio']) && is_array($MP3fileInfo['RIFF']['audio'])) { $streamindex = count($MP3fileInfo['RIFF']['audio']); } $MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['wFormatTag'] = LittleEndian2Int(substr($strfData, 0, 2)); $MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['nChannels'] = LittleEndian2Int(substr($strfData, 2, 2)); $MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['nSamplesPerSec'] = LittleEndian2Int(substr($strfData, 4, 4)); $MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['nAvgBytesPerSec'] = LittleEndian2Int(substr($strfData, 8, 4)); $MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['nBlockAlign'] = LittleEndian2Int(substr($strfData, 12, 2)); $MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['nBitsPerSample'] = LittleEndian2Int(substr($strfData, 14, 2)); $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['format'] = RIFFwFormatTagLookup($MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['wFormatTag']); $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['channels'] = $MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['nChannels']; $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['channelmode'] = $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['channels'] == 1 ? 'mono' : 'stereo'; $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['frequency'] = $MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['nSamplesPerSec']; $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['bitrate'] = $MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['nAvgBytesPerSec'] * 8; $MP3fileInfo['RIFF']['audio']["{$streamindex}"]['bitspersample'] = $MP3fileInfo['RIFF']['raw']['strf']['auds']["{$streamindex}"]['nBitsPerSample']; break; case 'vids': $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['biSize'] = LittleEndian2Int(substr($strfData, 0, 4)); // number of bytes required by the BITMAPINFOHEADER structure $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['biWidth'] = LittleEndian2Int(substr($strfData, 4, 4)); // width of the bitmap in pixels $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['biHeight'] = LittleEndian2Int(substr($strfData, 8, 4)); // height of the bitmap in pixels. If biHeight is positive, the bitmap is a "bottom-up" DIB and its origin is the lower left corner. If biHeight is negative, the bitmap is a "top-down" DIB and its origin is the upper left corner $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['biPlanes'] = LittleEndian2Int(substr($strfData, 12, 2)); // number of color planes on the target device. In most cases this value must be set to 1 $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['biBitCount'] = LittleEndian2Int(substr($strfData, 14, 2)); // Specifies the number of bits per pixels $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['fourcc'] = substr($strfData, 16, 4); // $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['biSizeImage'] = LittleEndian2Int(substr($strfData, 20, 4)); // size of the bitmap data section of the image (the actual pixel data, excluding BITMAPINFOHEADER and RGBQUAD structures) $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['biXPelsPerMeter'] = LittleEndian2Int(substr($strfData, 24, 4)); // horizontal resolution, in pixels per metre, of the target device $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['biYPelsPerMeter'] = LittleEndian2Int(substr($strfData, 28, 4)); // vertical resolution, in pixels per metre, of the target device $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['biClrUsed'] = LittleEndian2Int(substr($strfData, 32, 4)); // actual number of color indices in the color table used by the bitmap. If this value is zero, the bitmap uses the maximum number of colors corresponding to the value of the biBitCount member for the compression mode specified by biCompression $MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['biClrImportant'] = LittleEndian2Int(substr($strfData, 36, 4)); // number of color indices that are considered important for displaying the bitmap. If this value is zero, all colors are important $MP3fileInfo['RIFF']['video']["{$streamindex}"]['codec'] = RIFFfourccLookup($MP3fileInfo['RIFF']['raw']['strh']["{$i}"]['fccHandler']); if (!$MP3fileInfo['RIFF']['video']["{$streamindex}"]['codec'] && RIFFfourccLookup($MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['fourcc'])) { RIFFfourccLookup($MP3fileInfo['RIFF']['raw']['strf']['vids']["{$streamindex}"]['fourcc']); } break; } } } } } } break; default: unset($MP3fileInfo['fileformat']); break; } if (isset($MP3fileInfo['RIFF']['WAVE']['INFO']) && is_array($MP3fileInfo['RIFF']['WAVE']['INFO'])) { $MP3fileInfo['RIFF']['title'] = trim(substr($MP3fileInfo['RIFF']['WAVE']['INFO']['DISP'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['DISP']) - 1]['data'], 4)); $MP3fileInfo['RIFF']['artist'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['IART'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['IART']) - 1]['data']); $MP3fileInfo['RIFF']['genre'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['IGNR'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['IGNR']) - 1]['data']); $MP3fileInfo['RIFF']['comment'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['ICMT'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['ICMT']) - 1]['data']); $MP3fileInfo['RIFF']['copyright'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['ICOP'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['ICOP']) - 1]['data']); $MP3fileInfo['RIFF']['engineers'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['IENG'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['IENG']) - 1]['data']); $MP3fileInfo['RIFF']['keywords'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['IKEY'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['IKEY']) - 1]['data']); $MP3fileInfo['RIFF']['originalmedium'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['IMED'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['IMED']) - 1]['data']); $MP3fileInfo['RIFF']['name'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['INAM'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['INAM']) - 1]['data']); $MP3fileInfo['RIFF']['sourcesupplier'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['ISRC'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['ISRC']) - 1]['data']); $MP3fileInfo['RIFF']['digitizer'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['ITCH'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['ITCH']) - 1]['data']); $MP3fileInfo['RIFF']['subject'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['ISBJ'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['ISBJ']) - 1]['data']); $MP3fileInfo['RIFF']['digitizationsource'] = trim($MP3fileInfo['RIFF']['WAVE']['INFO']['ISRF'][count($MP3fileInfo['RIFF']['WAVE']['INFO']['ISRF']) - 1]['data']); } foreach ($MP3fileInfo['RIFF'] as $key => $value) { if (!is_array($value) && !$value) { unset($MP3fileInfo['RIFF']["{$key}"]); } } return TRUE; }
function getMPEGHeaderFilepointer(&$fd, &$ThisFileInfo) { $ThisFileInfo['fileformat'] = 'mpeg'; fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); $MPEGstreamData = fread($fd, min(100000, $ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset'])); $MPEGstreamDataLength = strlen($MPEGstreamData); $foundVideo = true; $VideoChunkOffset = 0; while (substr($MPEGstreamData, $VideoChunkOffset++, 4) !== MPEG_VIDEO_SEQUENCE_HEADER) { if ($VideoChunkOffset >= $MPEGstreamDataLength) { $foundVideo = false; break 2; } } if ($foundVideo) { // Start code 32 bits // horizontal frame size 12 bits // vertical frame size 12 bits // pixel aspect ratio 4 bits // frame rate 4 bits // bitrate 18 bits // marker bit 1 bit // VBV buffer size 10 bits // constrained parameter flag 1 bit // intra quant. matrix flag 1 bit // intra quant. matrix values 512 bits (present if matrix flag == 1) // non-intra quant. matrix flag 1 bit // non-intra quant. matrix values 512 bits (present if matrix flag == 1) $ThisFileInfo['video']['dataformat'] = 'mpeg'; // I don't know how to differentiate between MPEG-1 and MPEG-2 video stream // Any information appreciated: info@getid3.org //$ThisFileInfo['video']['codec'] = 'MPEG-1'; //$ThisFileInfo['video']['codec'] = 'MPEG-2'; $ThisFileInfo['video']['codec'] = 'MPEG'; $VideoChunkOffset += strlen(MPEG_VIDEO_SEQUENCE_HEADER) - 1; $FrameSizeDWORD = BigEndian2Int(substr($MPEGstreamData, $VideoChunkOffset, 3)); $VideoChunkOffset += 3; $AspectRatioFrameRateDWORD = BigEndian2Int(substr($MPEGstreamData, $VideoChunkOffset, 1)); $VideoChunkOffset += 1; $assortedinformation = BigEndian2Bin(substr($MPEGstreamData, $VideoChunkOffset, 4)); $VideoChunkOffset += 4; $ThisFileInfo['mpeg']['video']['raw']['framesize_horizontal'] = ($FrameSizeDWORD & 0xfff000) >> 12; // 12 bits for horizontal frame size $ThisFileInfo['mpeg']['video']['raw']['framesize_vertical'] = $FrameSizeDWORD & 0xfff; // 12 bits for vertical frame size $ThisFileInfo['mpeg']['video']['raw']['pixel_aspect_ratio'] = ($AspectRatioFrameRateDWORD & 0xf0) >> 4; $ThisFileInfo['mpeg']['video']['raw']['frame_rate'] = $AspectRatioFrameRateDWORD & 0xf; $ThisFileInfo['mpeg']['video']['framesize_horizontal'] = $ThisFileInfo['mpeg']['video']['raw']['framesize_horizontal']; $ThisFileInfo['mpeg']['video']['framesize_vertical'] = $ThisFileInfo['mpeg']['video']['raw']['framesize_vertical']; $ThisFileInfo['mpeg']['video']['pixel_aspect_ratio'] = MPEGvideoAspectRatioLookup($ThisFileInfo['mpeg']['video']['raw']['pixel_aspect_ratio']); $ThisFileInfo['mpeg']['video']['pixel_aspect_ratio_text'] = MPEGvideoAspectRatioTextLookup($ThisFileInfo['mpeg']['video']['raw']['pixel_aspect_ratio']); $ThisFileInfo['mpeg']['video']['frame_rate'] = MPEGvideoFramerateLookup($ThisFileInfo['mpeg']['video']['raw']['frame_rate']); $ThisFileInfo['mpeg']['video']['raw']['bitrate'] = Bin2Dec(substr($assortedinformation, 0, 18)); $ThisFileInfo['mpeg']['video']['raw']['marker_bit'] = Bin2Dec(substr($assortedinformation, 18, 1)); $ThisFileInfo['mpeg']['video']['raw']['vbv_buffer_size'] = Bin2Dec(substr($assortedinformation, 19, 10)); $ThisFileInfo['mpeg']['video']['raw']['constrained_param_flag'] = Bin2Dec(substr($assortedinformation, 29, 1)); $ThisFileInfo['mpeg']['video']['raw']['intra_quant_flag'] = Bin2Dec(substr($assortedinformation, 30, 1)); if ($ThisFileInfo['mpeg']['video']['raw']['bitrate'] == 0x3ffff) { // 18 set bits $ThisFileInfo['warning'] .= "\n" . 'This version of getID3() [' . GETID3VERSION . '] cannot determine average bitrate of VBR MPEG video files'; $ThisFileInfo['mpeg']['video']['bitrate_mode'] = 'vbr'; } else { $ThisFileInfo['mpeg']['video']['bitrate'] = $ThisFileInfo['mpeg']['video']['raw']['bitrate'] * 400; $ThisFileInfo['mpeg']['video']['bitrate_mode'] = 'cbr'; $ThisFileInfo['video']['bitrate'] = $ThisFileInfo['mpeg']['video']['bitrate']; } $ThisFileInfo['video']['resolution_x'] = $ThisFileInfo['mpeg']['video']['framesize_horizontal']; $ThisFileInfo['video']['resolution_y'] = $ThisFileInfo['mpeg']['video']['framesize_vertical']; $ThisFileInfo['video']['frame_rate'] = $ThisFileInfo['mpeg']['video']['frame_rate']; $ThisFileInfo['video']['bitrate_mode'] = $ThisFileInfo['mpeg']['video']['bitrate_mode']; $ThisFileInfo['video']['lossless'] = false; $ThisFileInfo['video']['bits_per_sample'] = 24; } else { $ThisFileInfo['error'] .= "\n" . 'Could not find start of video block in the first 100,000 bytes (or before end of file) - this might not be an MPEG-video file?'; } $AudioChunkOffset = 0; while (true) { while (substr($MPEGstreamData, $AudioChunkOffset++, 4) !== MPEG_AUDIO_START) { if ($AudioChunkOffset >= $MPEGstreamDataLength) { break 2; } } require_once GETID3_INCLUDEPATH . 'getid3.mp3.php'; for ($i = 0; $i <= 2; $i++) { // some files have the MPEG-audio header 8 bytes after the end of the $00 $00 $01 $C0 signature, some have it 9 bytes, some 10 bytes after // I have no idea why or what the difference is, so this is a stupid hack. // If anybody has any better idea of what's going on, please let me know - info@getid3.org $dummy = $ThisFileInfo; if (decodeMPEGaudioHeader($fd, $AudioChunkOffset + 3 + 8 + $i, $dummy, false)) { $ThisFileInfo = $dummy; $ThisFileInfo['audio']['bits_per_sample'] = 16; $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; $ThisFileInfo['audio']['lossless'] = false; break 2; } } } return true; }
function getRIFFHeaderFilepointer(&$fd, &$ThisFileInfo) { fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); $RIFFheader = fread($fd, 12); switch (substr($RIFFheader, 0, 4)) { case 'RIFF': case 'SDSS': // SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com) $ThisFileInfo['fileformat'] = 'riff'; $ThisFileInfo['RIFF'][substr($RIFFheader, 8, 4)] = ParseRIFF($fd, $ThisFileInfo['avdataoffset'] + 12, $ThisFileInfo['avdataoffset'] + LittleEndian2Int(substr($RIFFheader, 4, 4)), $ThisFileInfo); break; default: $ThisFileInfo['error'] .= "\n" . 'Cannot parse RIFF (this is maybe not a RIFF / WAV / AVI file?)'; unset($ThisFileInfo['fileformat']); return false; break; } $streamindex = 0; $arraykeys = array_keys($ThisFileInfo['RIFF']); switch ($arraykeys[0]) { case 'WAVE': $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; $ThisFileInfo['audio']['dataformat'] = 'wav'; if (isset($ThisFileInfo['RIFF']['WAVE']['fmt '][0]['data'])) { $ThisFileInfo['RIFF']['audio'][$streamindex] = RIFFparseWAVEFORMATex($ThisFileInfo['RIFF']['WAVE']['fmt '][0]['data']); if ($ThisFileInfo['RIFF']['audio'][$streamindex] == 0) { $ThisFileInfo['error'] .= 'Corrupt RIFF file: bitrate_audio == zero'; return false; } $ThisFileInfo['RIFF']['raw']['fmt '] = $ThisFileInfo['RIFF']['audio'][$streamindex]['raw']; unset($ThisFileInfo['RIFF']['audio'][$streamindex]['raw']); $ThisFileInfo['audio'] = array_merge_noclobber($ThisFileInfo['audio'], $ThisFileInfo['RIFF']['audio'][$streamindex]); $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['RIFF']['audio'][$streamindex]['bitrate']; $ThisFileInfo['playtime_seconds'] = (double) (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['audio']['bitrate']); if (isset($ThisFileInfo['RIFF']['WAVE']['data'][0]['offset']) && isset($ThisFileInfo['RIFF']['raw']['fmt ']['wFormatTag'])) { switch ($ThisFileInfo['RIFF']['raw']['fmt ']['wFormatTag']) { case 85: // LAME ACM require_once GETID3_INCLUDEPATH . 'getid3.mp3.php'; getOnlyMPEGaudioInfo($fd, $ThisFileInfo, $ThisFileInfo['RIFF']['WAVE']['data'][0]['offset'], false); $ThisFileInfo['audio']['dataformat'] = 'mp3'; if (isset($ThisFileInfo['mpeg']['audio'])) { $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['mpeg']['audio']['sample_rate']; $ThisFileInfo['audio']['channels'] = $ThisFileInfo['mpeg']['audio']['channels']; $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['mpeg']['audio']['bitrate'] * 1000; $ThisFileInfo['bitrate'] = $ThisFileInfo['audio']['bitrate']; $ThisFileInfo['audio']['bitrate_mode'] = strtolower($ThisFileInfo['mpeg']['audio']['bitratemode']); } break; default: // do nothing break; } } } if (isset($ThisFileInfo['RIFF']['WAVE']['rgad'][0]['data'])) { require_once GETID3_INCLUDEPATH . 'getid3.rgad.php'; $rgadData = $ThisFileInfo['RIFF']['WAVE']['rgad'][0]['data']; $ThisFileInfo['RIFF']['raw']['rgad']['fPeakAmplitude'] = LittleEndian2Float(substr($rgadData, 0, 4)); $ThisFileInfo['RIFF']['raw']['rgad']['nRadioRgAdjust'] = LittleEndian2Int(substr($rgadData, 4, 2)); $ThisFileInfo['RIFF']['raw']['rgad']['nAudiophileRgAdjust'] = LittleEndian2Int(substr($rgadData, 6, 2)); $nRadioRgAdjustBitstring = str_pad(Dec2Bin($ThisFileInfo['RIFF']['raw']['rgad']['nRadioRgAdjust']), 16, '0', STR_PAD_LEFT); $nAudiophileRgAdjustBitstring = str_pad(Dec2Bin($ThisFileInfo['RIFF']['raw']['rgad']['nAudiophileRgAdjust']), 16, '0', STR_PAD_LEFT); $ThisFileInfo['RIFF']['raw']['rgad']['radio']['name'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 0, 3)); $ThisFileInfo['RIFF']['raw']['rgad']['radio']['originator'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 3, 3)); $ThisFileInfo['RIFF']['raw']['rgad']['radio']['signbit'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 6, 1)); $ThisFileInfo['RIFF']['raw']['rgad']['radio']['adjustment'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 7, 9)); $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['name'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 0, 3)); $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['originator'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 3, 3)); $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['signbit'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 6, 1)); $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['adjustment'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 7, 9)); $ThisFileInfo['RIFF']['rgad']['peakamplitude'] = $ThisFileInfo['RIFF']['raw']['rgad']['fPeakAmplitude']; if ($ThisFileInfo['RIFF']['raw']['rgad']['radio']['name'] != 0 && $ThisFileInfo['RIFF']['raw']['rgad']['radio']['originator'] != 0) { $ThisFileInfo['RIFF']['rgad']['radio']['name'] = RGADnameLookup($ThisFileInfo['RIFF']['raw']['rgad']['radio']['name']); $ThisFileInfo['RIFF']['rgad']['radio']['originator'] = RGADoriginatorLookup($ThisFileInfo['RIFF']['raw']['rgad']['radio']['originator']); $ThisFileInfo['RIFF']['rgad']['radio']['adjustment'] = RGADadjustmentLookup($ThisFileInfo['RIFF']['raw']['rgad']['radio']['adjustment'], $ThisFileInfo['RIFF']['raw']['rgad']['radio']['signbit']); } if ($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['name'] != 0 && $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['originator'] != 0) { $ThisFileInfo['RIFF']['rgad']['audiophile']['name'] = RGADnameLookup($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['name']); $ThisFileInfo['RIFF']['rgad']['audiophile']['originator'] = RGADoriginatorLookup($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['originator']); $ThisFileInfo['RIFF']['rgad']['audiophile']['adjustment'] = RGADadjustmentLookup($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['adjustment'], $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['signbit']); } } if (isset($ThisFileInfo['RIFF']['WAVE']['fact'][0]['data'])) { $ThisFileInfo['RIFF']['raw']['fact']['NumberOfSamples'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['fact'][0]['data'], 0, 4)); if (isset($ThisFileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec']) && $ThisFileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec'] > 0) { $ThisFileInfo['playtime_seconds'] = (double) $ThisFileInfo['RIFF']['raw']['fact']['NumberOfSamples'] / $ThisFileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec']; } if (isset($ThisFileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec']) && $ThisFileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec']) { $ThisFileInfo['audio']['bitrate'] = CastAsInt($ThisFileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec'] * 8); } } if (!isset($ThisFileInfo['audio']['bitrate']) && isset($ThisFileInfo['RIFF']['audio'][$streamindex]['bitrate'])) { $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['RIFF']['audio'][$streamindex]['bitrate']; $ThisFileInfo['playtime_seconds'] = (double) (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['audio']['bitrate']); } break; case 'AVI ': $ThisFileInfo['video']['bitrate_mode'] = 'cbr'; $ThisFileInfo['video']['dataformat'] = 'avi'; $ThisFileInfo['mime_type'] = 'video/avi'; if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['avih'][$streamindex]['data'])) { $avihData = $ThisFileInfo['RIFF']['AVI ']['hdrl']['avih'][$streamindex]['data']; $ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] = LittleEndian2Int(substr($avihData, 0, 4)); // frame display rate (or 0L) if ($ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] == 0) { $ThisFileInfo['error'] .= 'Corrupt RIFF file: avih.dwMicroSecPerFrame == zero'; return false; } $ThisFileInfo['RIFF']['raw']['avih']['dwMaxBytesPerSec'] = LittleEndian2Int(substr($avihData, 4, 4)); // max. transfer rate $ThisFileInfo['RIFF']['raw']['avih']['dwPaddingGranularity'] = LittleEndian2Int(substr($avihData, 8, 4)); // pad to multiples of this size; normally 2K. $ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] = LittleEndian2Int(substr($avihData, 12, 4)); // the ever-present flags $ThisFileInfo['RIFF']['raw']['avih']['dwTotalFrames'] = LittleEndian2Int(substr($avihData, 16, 4)); // # frames in file $ThisFileInfo['RIFF']['raw']['avih']['dwInitialFrames'] = LittleEndian2Int(substr($avihData, 20, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwStreams'] = LittleEndian2Int(substr($avihData, 24, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwSuggestedBufferSize'] = LittleEndian2Int(substr($avihData, 28, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwWidth'] = LittleEndian2Int(substr($avihData, 32, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwHeight'] = LittleEndian2Int(substr($avihData, 36, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwScale'] = LittleEndian2Int(substr($avihData, 40, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwRate'] = LittleEndian2Int(substr($avihData, 44, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwStart'] = LittleEndian2Int(substr($avihData, 48, 4)); $ThisFileInfo['RIFF']['raw']['avih']['dwLength'] = LittleEndian2Int(substr($avihData, 52, 4)); $ThisFileInfo['RIFF']['raw']['avih']['flags']['hasindex'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x10); $ThisFileInfo['RIFF']['raw']['avih']['flags']['mustuseindex'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x20); $ThisFileInfo['RIFF']['raw']['avih']['flags']['interleaved'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x100); $ThisFileInfo['RIFF']['raw']['avih']['flags']['trustcktype'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x800); $ThisFileInfo['RIFF']['raw']['avih']['flags']['capturedfile'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x10000); $ThisFileInfo['RIFF']['raw']['avih']['flags']['copyrighted'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x20010); $ThisFileInfo['RIFF']['video'][$streamindex]['frame_width'] = $ThisFileInfo['RIFF']['raw']['avih']['dwWidth']; $ThisFileInfo['RIFF']['video'][$streamindex]['frame_height'] = $ThisFileInfo['RIFF']['raw']['avih']['dwHeight']; $ThisFileInfo['RIFF']['video'][$streamindex]['frame_rate'] = round(1000000 / $ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'], 3); if (!isset($ThisFileInfo['video']['resolution_x'])) { $ThisFileInfo['video']['resolution_x'] = $ThisFileInfo['RIFF']['video'][$streamindex]['frame_width']; } if (!isset($ThisFileInfo['video']['resolution_y'])) { $ThisFileInfo['video']['resolution_y'] = $ThisFileInfo['RIFF']['video'][$streamindex]['frame_height']; } $ThisFileInfo['video']['frame_rate'] = $ThisFileInfo['RIFF']['video'][$streamindex]['frame_rate']; } if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'][0]['data'])) { if (is_array($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'])) { for ($i = 0; $i < count($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh']); $i++) { if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'][$i]['data'])) { $strhData = $ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'][$i]['data']; $strhfccType = substr($strhData, 0, 4); if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strf'][$i]['data'])) { $strfData = $ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strf'][$i]['data']; switch ($strhfccType) { case 'auds': $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; $ThisFileInfo['audio']['dataformat'] = 'wav'; if (isset($ThisFileInfo['RIFF']['audio']) && is_array($ThisFileInfo['RIFF']['audio'])) { $streamindex = count($ThisFileInfo['RIFF']['audio']); } $ThisFileInfo['RIFF']['audio'][$streamindex] = RIFFparseWAVEFORMATex($strfData); $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex] = $ThisFileInfo['RIFF']['audio'][$streamindex]['raw']; unset($ThisFileInfo['RIFF']['audio'][$streamindex]['raw']); $ThisFileInfo['audio'] = array_merge_noclobber($ThisFileInfo['audio'], $ThisFileInfo['RIFF']['audio'][$streamindex]); switch ($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['wFormatTag']) { case 85: $ThisFileInfo['audio']['dataformat'] = 'mp3'; break; case 8192: $ThisFileInfo['audio']['dataformat'] = 'ac3'; break; default: $ThisFileInfo['audio']['dataformat'] = 'wav'; break; } break; case 'iavs': case 'vids': $ThisFileInfo['RIFF']['raw']['strh'][$i]['fccType'] = substr($strhData, 0, 4); // same as $strhfccType; $ThisFileInfo['RIFF']['raw']['strh'][$i]['fccHandler'] = substr($strhData, 4, 4); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwFlags'] = LittleEndian2Int(substr($strhData, 8, 4)); // Contains AVITF_* flags $ThisFileInfo['RIFF']['raw']['strh'][$i]['wPriority'] = LittleEndian2Int(substr($strhData, 12, 2)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['wLanguage'] = LittleEndian2Int(substr($strhData, 14, 2)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwInitialFrames'] = LittleEndian2Int(substr($strhData, 16, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwScale'] = LittleEndian2Int(substr($strhData, 20, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwRate'] = LittleEndian2Int(substr($strhData, 24, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwStart'] = LittleEndian2Int(substr($strhData, 28, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwLength'] = LittleEndian2Int(substr($strhData, 32, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwSuggestedBufferSize'] = LittleEndian2Int(substr($strhData, 36, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwQuality'] = LittleEndian2Int(substr($strhData, 40, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['dwSampleSize'] = LittleEndian2Int(substr($strhData, 44, 4)); $ThisFileInfo['RIFF']['raw']['strh'][$i]['rcFrame'] = LittleEndian2Int(substr($strhData, 48, 4)); $ThisFileInfo['RIFF']['video'][$streamindex]['codec'] = RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strh'][$i]['fccHandler']); if (!$ThisFileInfo['RIFF']['video'][$streamindex]['codec'] && isset($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']) && RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc'])) { $ThisFileInfo['RIFF']['video'][$streamindex]['codec'] = RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']); } $ThisFileInfo['video']['codec'] = $ThisFileInfo['RIFF']['video'][$streamindex]['codec']; switch ($strhfccType) { case 'vids': $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biSize'] = LittleEndian2Int(substr($strfData, 0, 4)); // number of bytes required by the BITMAPINFOHEADER structure $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biWidth'] = LittleEndian2Int(substr($strfData, 4, 4)); // width of the bitmap in pixels $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biHeight'] = LittleEndian2Int(substr($strfData, 8, 4)); // height of the bitmap in pixels. If biHeight is positive, the bitmap is a 'bottom-up' DIB and its origin is the lower left corner. If biHeight is negative, the bitmap is a 'top-down' DIB and its origin is the upper left corner $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biPlanes'] = LittleEndian2Int(substr($strfData, 12, 2)); // number of color planes on the target device. In most cases this value must be set to 1 $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biBitCount'] = LittleEndian2Int(substr($strfData, 14, 2)); // Specifies the number of bits per pixels $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc'] = substr($strfData, 16, 4); // $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biSizeImage'] = LittleEndian2Int(substr($strfData, 20, 4)); // size of the bitmap data section of the image (the actual pixel data, excluding BITMAPINFOHEADER and RGBQUAD structures) $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biXPelsPerMeter'] = LittleEndian2Int(substr($strfData, 24, 4)); // horizontal resolution, in pixels per metre, of the target device $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biYPelsPerMeter'] = LittleEndian2Int(substr($strfData, 28, 4)); // vertical resolution, in pixels per metre, of the target device $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biClrUsed'] = LittleEndian2Int(substr($strfData, 32, 4)); // actual number of color indices in the color table used by the bitmap. If this value is zero, the bitmap uses the maximum number of colors corresponding to the value of the biBitCount member for the compression mode specified by biCompression $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biClrImportant'] = LittleEndian2Int(substr($strfData, 36, 4)); // number of color indices that are considered important for displaying the bitmap. If this value is zero, all colors are important if ($ThisFileInfo['RIFF']['video'][$streamindex]['codec'] == 'DV') { $ThisFileInfo['RIFF']['video'][$streamindex]['dv_type'] = 2; } break; case 'iavs': $ThisFileInfo['RIFF']['video'][$streamindex]['dv_type'] = 1; break; } break; default: $ThisFileInfo['warning'] .= "\n" . 'Unhandled fccType for stream (' . $i . '): "' . $strhfccType . '"'; break; } } } if (isset($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']) && RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc'])) { $ThisFileInfo['RIFF']['video'][$streamindex]['codec'] = RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']); $ThisFileInfo['video']['codec'] = $ThisFileInfo['RIFF']['video'][$streamindex]['codec']; } } } } break; case 'CDDA': $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; $ThisFileInfo['audio']['dataformat'] = 'cda'; unset($ThisFileInfo['mime_type']); if (isset($ThisFileInfo['RIFF']['CDDA']['fmt '][0]['data'])) { $fmtData = $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['data']; $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['unknown1'] = LittleEndian2Int(substr($fmtData, 0, 2)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['track_num'] = LittleEndian2Int(substr($fmtData, 2, 2)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['disc_id'] = LittleEndian2Int(substr($fmtData, 4, 4)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['start_offset_frame'] = LittleEndian2Int(substr($fmtData, 8, 4)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_frames'] = LittleEndian2Int(substr($fmtData, 12, 4)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['unknown6'] = LittleEndian2Int(substr($fmtData, 16, 4)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['unknown7'] = LittleEndian2Int(substr($fmtData, 20, 4)); $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['start_offset_seconds'] = (double) $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['start_offset_frame'] / 75; $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_seconds'] = (double) $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_frames'] / 75; $ThisFileInfo['comments']['track'] = $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['track_num']; $ThisFileInfo['playtime_seconds'] = $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_seconds']; // hardcoded data for CD-audio $ThisFileInfo['audio']['sample_rate'] = 44100; $ThisFileInfo['audio']['channels'] = 2; $ThisFileInfo['audio']['bits_per_sample'] = 16; $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['audio']['sample_rate'] * $ThisFileInfo['audio']['channels'] * $ThisFileInfo['audio']['bits_per_sample']; $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; } break; default: unset($ThisFileInfo['fileformat']); break; } if (isset($ThisFileInfo['RIFF']['WAVE']['DISP']) && is_array($ThisFileInfo['RIFF']['WAVE']['DISP'])) { $ThisFileInfo['tags'][] = 'riff'; $ThisFileInfo['RIFF']['comments']['title'][] = trim(substr($ThisFileInfo['RIFF']['WAVE']['DISP'][count($ThisFileInfo['RIFF']['WAVE']['DISP']) - 1]['data'], 4)); } if (isset($ThisFileInfo['RIFF']['WAVE']['INFO']) && is_array($ThisFileInfo['RIFF']['WAVE']['INFO'])) { $ThisFileInfo['tags'][] = 'riff'; $RIFFinfoKeyLookup = array('IART' => 'artist', 'IGNR' => 'genre', 'ICMT' => 'comment', 'ICOP' => 'copyright', 'IENG' => 'engineers', 'IKEY' => 'keywords', 'IMED' => 'orignalmedium', 'INAM' => 'name', 'ISRC' => 'sourcesupplier', 'ITCH' => 'digitizer', 'ISBJ' => 'subject', 'ISRF' => 'digitizationsource'); foreach ($RIFFinfoKeyLookup as $key => $value) { foreach ($ThisFileInfo['RIFF']['WAVE']['INFO']["{$key}"] as $commentid => $commentdata) { if (trim($commentdata['data']) != '') { $ThisFileInfo['RIFF']['comments']["{$value}"][] = trim($commentdata['data']); } } } } if (!empty($ThisFileInfo['RIFF']['comments'])) { CopyFormatCommentsToRootComments($ThisFileInfo['RIFF']['comments'], $ThisFileInfo, true, true, true); } if (!isset($ThisFileInfo['playtime_seconds'])) { $ThisFileInfo['playtime_seconds'] = 0; } if (isset($ThisFileInfo['RIFF']['raw']['avih']['dwTotalFrames']) && isset($ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'])) { $ThisFileInfo['playtime_seconds'] = $ThisFileInfo['RIFF']['raw']['avih']['dwTotalFrames'] * ($ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] / 1000000); } if ($ThisFileInfo['playtime_seconds'] > 0) { if (isset($ThisFileInfo['RIFF']['audio']) && isset($ThisFileInfo['RIFF']['video'])) { if (!isset($ThisFileInfo['bitrate'])) { $ThisFileInfo['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8; } } elseif (isset($ThisFileInfo['RIFF']['audio']) && !isset($ThisFileInfo['RIFF']['video'])) { if (!isset($ThisFileInfo['audio']['bitrate'])) { $ThisFileInfo['audio']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8; } } elseif (!isset($ThisFileInfo['RIFF']['audio']) && isset($ThisFileInfo['RIFF']['video'])) { if (!isset($ThisFileInfo['video']['bitrate'])) { $ThisFileInfo['video']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8; } } } if (isset($ThisFileInfo['RIFF']['video']) && isset($ThisFileInfo['audio']['bitrate']) && $ThisFileInfo['audio']['bitrate'] > 0 && $ThisFileInfo['playtime_seconds'] > 0) { $ThisFileInfo['audio']['bitrate'] = 0; $ThisFileInfo['video']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8; foreach ($ThisFileInfo['RIFF']['audio'] as $channelnumber => $audioinfoarray) { $ThisFileInfo['video']['bitrate'] -= $audioinfoarray['bitrate']; $ThisFileInfo['audio']['bitrate'] += $audioinfoarray['bitrate']; } if ($ThisFileInfo['video']['bitrate'] <= 0) { unset($ThisFileInfo['video']['bitrate']); } if ($ThisFileInfo['audio']['bitrate'] <= 0) { unset($ThisFileInfo['audio']['bitrate']); } } if (!empty($ThisFileInfo['RIFF']['raw']['fmt ']['nBitsPerSample'])) { $ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['RIFF']['raw']['fmt ']['nBitsPerSample']; } // Skip RIFF header $ThisFileInfo['avdataoffset'] += 44; return true; }