/includes/getid3/module.tag.id3v2.php
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- <?php
- /////////////////////////////////////////////////////////////////
- /// getID3() by James Heinrich <info@getid3.org> //
- // available at http://getid3.sourceforge.net //
- // or http://www.getid3.org //
- /////////////////////////////////////////////////////////////////
- // See readme.txt for more details //
- /////////////////////////////////////////////////////////////////
- /// //
- // module.tag.id3v2.php //
- // module for analyzing ID3v2 tags //
- // dependencies: module.tag.id3v1.php //
- // ///
- /////////////////////////////////////////////////////////////////
- getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v1.php', __FILE__, true);
- class getid3_id3v2 extends getid3_handler
- {
- var $inline_attachments = true; // true: return full data for all attachments; false: return no data for all attachments; integer: return data for attachments <= than this; string: save as file to this directory
- var $StartingOffset = 0;
- function Analyze() {
- $info = &$this->getid3->info;
- // Overall tag structure:
- // +-----------------------------+
- // | Header (10 bytes) |
- // +-----------------------------+
- // | Extended Header |
- // | (variable length, OPTIONAL) |
- // +-----------------------------+
- // | Frames (variable length) |
- // +-----------------------------+
- // | Padding |
- // | (variable length, OPTIONAL) |
- // +-----------------------------+
- // | Footer (10 bytes, OPTIONAL) |
- // +-----------------------------+
- // Header
- // ID3v2/file identifier "ID3"
- // ID3v2 version $04 00
- // ID3v2 flags (%ab000000 in v2.2, %abc00000 in v2.3, %abcd0000 in v2.4.x)
- // ID3v2 size 4 * %0xxxxxxx
- // shortcuts
- $info['id3v2']['header'] = true;
- $thisfile_id3v2 = &$info['id3v2'];
- $thisfile_id3v2['flags'] = array();
- $thisfile_id3v2_flags = &$thisfile_id3v2['flags'];
- fseek($this->getid3->fp, $this->StartingOffset, SEEK_SET);
- $header = fread($this->getid3->fp, 10);
- if (substr($header, 0, 3) == 'ID3' && strlen($header) == 10) {
- $thisfile_id3v2['majorversion'] = ord($header{3});
- $thisfile_id3v2['minorversion'] = ord($header{4});
- // shortcut
- $id3v2_majorversion = &$thisfile_id3v2['majorversion'];
- } else {
- unset($info['id3v2']);
- return false;
- }
- if ($id3v2_majorversion > 4) { // this script probably won't correctly parse ID3v2.5.x and above (if it ever exists)
- $info['error'][] = 'this script only parses up to ID3v2.4.x - this tag is ID3v2.'.$id3v2_majorversion.'.'.$thisfile_id3v2['minorversion'];
- return false;
- }
- $id3_flags = ord($header{5});
- switch ($id3v2_majorversion) {
- case 2:
- // %ab000000 in v2.2
- $thisfile_id3v2_flags['unsynch'] = (bool) ($id3_flags & 0x80); // a - Unsynchronisation
- $thisfile_id3v2_flags['compression'] = (bool) ($id3_flags & 0x40); // b - Compression
- break;
- case 3:
- // %abc00000 in v2.3
- $thisfile_id3v2_flags['unsynch'] = (bool) ($id3_flags & 0x80); // a - Unsynchronisation
- $thisfile_id3v2_flags['exthead'] = (bool) ($id3_flags & 0x40); // b - Extended header
- $thisfile_id3v2_flags['experim'] = (bool) ($id3_flags & 0x20); // c - Experimental indicator
- break;
- case 4:
- // %abcd0000 in v2.4
- $thisfile_id3v2_flags['unsynch'] = (bool) ($id3_flags & 0x80); // a - Unsynchronisation
- $thisfile_id3v2_flags['exthead'] = (bool) ($id3_flags & 0x40); // b - Extended header
- $thisfile_id3v2_flags['experim'] = (bool) ($id3_flags & 0x20); // c - Experimental indicator
- $thisfile_id3v2_flags['isfooter'] = (bool) ($id3_flags & 0x10); // d - Footer present
- break;
- }
- $thisfile_id3v2['headerlength'] = getid3_lib::BigEndian2Int(substr($header, 6, 4), 1) + 10; // length of ID3v2 tag in 10-byte header doesn't include 10-byte header length
- $thisfile_id3v2['tag_offset_start'] = $this->StartingOffset;
- $thisfile_id3v2['tag_offset_end'] = $thisfile_id3v2['tag_offset_start'] + $thisfile_id3v2['headerlength'];
- // create 'encoding' key - used by getid3::HandleAllTags()
- // in ID3v2 every field can have it's own encoding type
- // so force everything to UTF-8 so it can be handled consistantly
- $thisfile_id3v2['encoding'] = 'UTF-8';
- // Frames
- // All ID3v2 frames consists of one frame header followed by one or more
- // fields containing the actual information. The header is always 10
- // bytes and laid out as follows:
- //
- // Frame ID $xx xx xx xx (four characters)
- // Size 4 * %0xxxxxxx
- // Flags $xx xx
- $sizeofframes = $thisfile_id3v2['headerlength'] - 10; // not including 10-byte initial header
- if (!empty($thisfile_id3v2['exthead']['length'])) {
- $sizeofframes -= ($thisfile_id3v2['exthead']['length'] + 4);
- }
- if (!empty($thisfile_id3v2_flags['isfooter'])) {
- $sizeofframes -= 10; // footer takes last 10 bytes of ID3v2 header, after frame data, before audio
- }
- if ($sizeofframes > 0) {
- $framedata = fread($this->getid3->fp, $sizeofframes); // read all frames from file into $framedata variable
- // if entire frame data is unsynched, de-unsynch it now (ID3v2.3.x)
- if (!empty($thisfile_id3v2_flags['unsynch']) && ($id3v2_majorversion <= 3)) {
- $framedata = $this->DeUnsynchronise($framedata);
- }
- // [in ID3v2.4.0] Unsynchronisation [S:6.1] is done on frame level, instead
- // of on tag level, making it easier to skip frames, increasing the streamability
- // of the tag. The unsynchronisation flag in the header [S:3.1] indicates that
- // there exists an unsynchronised frame, while the new unsynchronisation flag in
- // the frame header [S:4.1.2] indicates unsynchronisation.
- //$framedataoffset = 10 + ($thisfile_id3v2['exthead']['length'] ? $thisfile_id3v2['exthead']['length'] + 4 : 0); // how many bytes into the stream - start from after the 10-byte header (and extended header length+4, if present)
- $framedataoffset = 10; // how many bytes into the stream - start from after the 10-byte header
- // Extended Header
- if (!empty($thisfile_id3v2_flags['exthead'])) {
- $extended_header_offset = 0;
- if ($id3v2_majorversion == 3) {
- // v2.3 definition:
- //Extended header size $xx xx xx xx // 32-bit integer
- //Extended Flags $xx xx
- // %x0000000 %00000000 // v2.3
- // x - CRC data present
- //Size of padding $xx xx xx xx
- $thisfile_id3v2['exthead']['length'] = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, 4), 0);
- $extended_header_offset += 4;
- $thisfile_id3v2['exthead']['flag_bytes'] = 2;
- $thisfile_id3v2['exthead']['flag_raw'] = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, $thisfile_id3v2['exthead']['flag_bytes']));
- $extended_header_offset += $thisfile_id3v2['exthead']['flag_bytes'];
- $thisfile_id3v2['exthead']['flags']['crc'] = (bool) ($thisfile_id3v2['exthead']['flag_raw'] & 0x8000);
- $thisfile_id3v2['exthead']['padding_size'] = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, 4));
- $extended_header_offset += 4;
- if ($thisfile_id3v2['exthead']['flags']['crc']) {
- $thisfile_id3v2['exthead']['flag_data']['crc'] = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, 4));
- $extended_header_offset += 4;
- }
- $extended_header_offset += $thisfile_id3v2['exthead']['padding_size'];
- } elseif ($id3v2_majorversion == 4) {
- // v2.4 definition:
- //Extended header size 4 * %0xxxxxxx // 28-bit synchsafe integer
- //Number of flag bytes $01
- //Extended Flags $xx
- // %0bcd0000 // v2.4
- // b - Tag is an update
- // Flag data length $00
- // c - CRC data present
- // Flag data length $05
- // Total frame CRC 5 * %0xxxxxxx
- // d - Tag restrictions
- // Flag data length $01
- $thisfile_id3v2['exthead']['length'] = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, 4), true);
- $extended_header_offset += 4;
- $thisfile_id3v2['exthead']['flag_bytes'] = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, 1)); // should always be 1
- $extended_header_offset += 1;
- $thisfile_id3v2['exthead']['flag_raw'] = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, $thisfile_id3v2['exthead']['flag_bytes']));
- $extended_header_offset += $thisfile_id3v2['exthead']['flag_bytes'];
- $thisfile_id3v2['exthead']['flags']['update'] = (bool) ($thisfile_id3v2['exthead']['flag_raw'] & 0x40);
- $thisfile_id3v2['exthead']['flags']['crc'] = (bool) ($thisfile_id3v2['exthead']['flag_raw'] & 0x20);
- $thisfile_id3v2['exthead']['flags']['restrictions'] = (bool) ($thisfile_id3v2['exthead']['flag_raw'] & 0x10);
- if ($thisfile_id3v2['exthead']['flags']['update']) {
- $ext_header_chunk_length = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, 1)); // should be 0
- $extended_header_offset += 1;
- }
- if ($thisfile_id3v2['exthead']['flags']['crc']) {
- $ext_header_chunk_length = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, 1)); // should be 5
- $extended_header_offset += 1;
- $thisfile_id3v2['exthead']['flag_data']['crc'] = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, $ext_header_chunk_length), true, false);
- $extended_header_offset += $ext_header_chunk_length;
- }
- if ($thisfile_id3v2['exthead']['flags']['restrictions']) {
- $ext_header_chunk_length = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, 1)); // should be 1
- $extended_header_offset += 1;
- // %ppqrrstt
- $restrictions_raw = getid3_lib::BigEndian2Int(substr($framedata, $extended_header_offset, 1));
- $extended_header_offset += 1;
- $thisfile_id3v2['exthead']['flags']['restrictions']['tagsize'] = ($restrictions_raw & 0xC0) >> 6; // p - Tag size restrictions
- $thisfile_id3v2['exthead']['flags']['restrictions']['textenc'] = ($restrictions_raw & 0x20) >> 5; // q - Text encoding restrictions
- $thisfile_id3v2['exthead']['flags']['restrictions']['textsize'] = ($restrictions_raw & 0x18) >> 3; // r - Text fields size restrictions
- $thisfile_id3v2['exthead']['flags']['restrictions']['imgenc'] = ($restrictions_raw & 0x04) >> 2; // s - Image encoding restrictions
- $thisfile_id3v2['exthead']['flags']['restrictions']['imgsize'] = ($restrictions_raw & 0x03) >> 0; // t - Image size restrictions
- $thisfile_id3v2['exthead']['flags']['restrictions_text']['tagsize'] = $this->LookupExtendedHeaderRestrictionsTagSizeLimits($thisfile_id3v2['exthead']['flags']['restrictions']['tagsize']);
- $thisfile_id3v2['exthead']['flags']['restrictions_text']['textenc'] = $this->LookupExtendedHeaderRestrictionsTextEncodings($thisfile_id3v2['exthead']['flags']['restrictions']['textenc']);
- $thisfile_id3v2['exthead']['flags']['restrictions_text']['textsize'] = $this->LookupExtendedHeaderRestrictionsTextFieldSize($thisfile_id3v2['exthead']['flags']['restrictions']['textsize']);
- $thisfile_id3v2['exthead']['flags']['restrictions_text']['imgenc'] = $this->LookupExtendedHeaderRestrictionsImageEncoding($thisfile_id3v2['exthead']['flags']['restrictions']['imgenc']);
- $thisfile_id3v2['exthead']['flags']['restrictions_text']['imgsize'] = $this->LookupExtendedHeaderRestrictionsImageSizeSize($thisfile_id3v2['exthead']['flags']['restrictions']['imgsize']);
- }
- if ($thisfile_id3v2['exthead']['length'] != $extended_header_offset) {
- $info['warning'][] = 'ID3v2.4 extended header length mismatch (expecting '.intval($thisfile_id3v2['exthead']['length']).', found '.intval($extended_header_offset).')';
- }
- }
- $framedataoffset += $extended_header_offset;
- $framedata = substr($framedata, $extended_header_offset);
- } // end extended header
- while (isset($framedata) && (strlen($framedata) > 0)) { // cycle through until no more frame data is left to parse
- if (strlen($framedata) <= $this->ID3v2HeaderLength($id3v2_majorversion)) {
- // insufficient room left in ID3v2 header for actual data - must be padding
- $thisfile_id3v2['padding']['start'] = $framedataoffset;
- $thisfile_id3v2['padding']['length'] = strlen($framedata);
- $thisfile_id3v2['padding']['valid'] = true;
- for ($i = 0; $i < $thisfile_id3v2['padding']['length']; $i++) {
- if ($framedata{$i} != "\x00") {
- $thisfile_id3v2['padding']['valid'] = false;
- $thisfile_id3v2['padding']['errorpos'] = $thisfile_id3v2['padding']['start'] + $i;
- $info['warning'][] = 'Invalid ID3v2 padding found at offset '.$thisfile_id3v2['padding']['errorpos'].' (the remaining '.($thisfile_id3v2['padding']['length'] - $i).' bytes are considered invalid)';
- break;
- }
- }
- break; // skip rest of ID3v2 header
- }
- if ($id3v2_majorversion == 2) {
- // Frame ID $xx xx xx (three characters)
- // Size $xx xx xx (24-bit integer)
- // Flags $xx xx
- $frame_header = substr($framedata, 0, 6); // take next 6 bytes for header
- $framedata = substr($framedata, 6); // and leave the rest in $framedata
- $frame_name = substr($frame_header, 0, 3);
- $frame_size = getid3_lib::BigEndian2Int(substr($frame_header, 3, 3), 0);
- $frame_flags = 0; // not used for anything in ID3v2.2, just set to avoid E_NOTICEs
- } elseif ($id3v2_majorversion > 2) {
- // Frame ID $xx xx xx xx (four characters)
- // Size $xx xx xx xx (32-bit integer in v2.3, 28-bit synchsafe in v2.4+)
- // Flags $xx xx
- $frame_header = substr($framedata, 0, 10); // take next 10 bytes for header
- $framedata = substr($framedata, 10); // and leave the rest in $framedata
- $frame_name = substr($frame_header, 0, 4);
- if ($id3v2_majorversion == 3) {
- $frame_size = getid3_lib::BigEndian2Int(substr($frame_header, 4, 4), 0); // 32-bit integer
- } else { // ID3v2.4+
- $frame_size = getid3_lib::BigEndian2Int(substr($frame_header, 4, 4), 1); // 32-bit synchsafe integer (28-bit value)
- }
- if ($frame_size < (strlen($framedata) + 4)) {
- $nextFrameID = substr($framedata, $frame_size, 4);
- if ($this->IsValidID3v2FrameName($nextFrameID, $id3v2_majorversion)) {
- // next frame is OK
- } elseif (($frame_name == "\x00".'MP3') || ($frame_name == "\x00\x00".'MP') || ($frame_name == ' MP3') || ($frame_name == 'MP3e')) {
- // MP3ext known broken frames - "ok" for the purposes of this test
- } elseif (($id3v2_majorversion == 4) && ($this->IsValidID3v2FrameName(substr($framedata, getid3_lib::BigEndian2Int(substr($frame_header, 4, 4), 0), 4), 3))) {
- $info['warning'][] = 'ID3v2 tag written as ID3v2.4, but with non-synchsafe integers (ID3v2.3 style). Older versions of (Helium2; iTunes) are known culprits of this. Tag has been parsed as ID3v2.3';
- $id3v2_majorversion = 3;
- $frame_size = getid3_lib::BigEndian2Int(substr($frame_header, 4, 4), 0); // 32-bit integer
- }
- }
- $frame_flags = getid3_lib::BigEndian2Int(substr($frame_header, 8, 2));
- }
- if ((($id3v2_majorversion == 2) && ($frame_name == "\x00\x00\x00")) || ($frame_name == "\x00\x00\x00\x00")) {
- // padding encountered
- $thisfile_id3v2['padding']['start'] = $framedataoffset;
- $thisfile_id3v2['padding']['length'] = strlen($frame_header) + strlen($framedata);
- $thisfile_id3v2['padding']['valid'] = true;
- $len = strlen($framedata);
- for ($i = 0; $i < $len; $i++) {
- if ($framedata{$i} != "\x00") {
- $thisfile_id3v2['padding']['valid'] = false;
- $thisfile_id3v2['padding']['errorpos'] = $thisfile_id3v2['padding']['start'] + $i;
- $info['warning'][] = 'Invalid ID3v2 padding found at offset '.$thisfile_id3v2['padding']['errorpos'].' (the remaining '.($thisfile_id3v2['padding']['length'] - $i).' bytes are considered invalid)';
- break;
- }
- }
- break; // skip rest of ID3v2 header
- }
- if ($frame_name == 'COM ') {
- $info['warning'][] = 'error parsing "'.$frame_name.'" ('.$framedataoffset.' bytes into the ID3v2.'.$id3v2_majorversion.' tag). (ERROR: IsValidID3v2FrameName("'.str_replace("\x00", ' ', $frame_name).'", '.$id3v2_majorversion.'))). [Note: this particular error has been known to happen with tags edited by iTunes (versions "X v2.0.3", "v3.0.1" are known-guilty, probably others too)]';
- $frame_name = 'COMM';
- }
- if (($frame_size <= strlen($framedata)) && ($this->IsValidID3v2FrameName($frame_name, $id3v2_majorversion))) {
- unset($parsedFrame);
- $parsedFrame['frame_name'] = $frame_name;
- $parsedFrame['frame_flags_raw'] = $frame_flags;
- $parsedFrame['data'] = substr($framedata, 0, $frame_size);
- $parsedFrame['datalength'] = getid3_lib::CastAsInt($frame_size);
- $parsedFrame['dataoffset'] = $framedataoffset;
- $this->ParseID3v2Frame($parsedFrame);
- $thisfile_id3v2[$frame_name][] = $parsedFrame;
- $framedata = substr($framedata, $frame_size);
- } else { // invalid frame length or FrameID
- if ($frame_size <= strlen($framedata)) {
- if ($this->IsValidID3v2FrameName(substr($framedata, $frame_size, 4), $id3v2_majorversion)) {
- // next frame is valid, just skip the current frame
- $framedata = substr($framedata, $frame_size);
- $info['warning'][] = 'Next ID3v2 frame is valid, skipping current frame.';
- } else {
- // next frame is invalid too, abort processing
- //unset($framedata);
- $framedata = null;
- $info['error'][] = 'Next ID3v2 frame is also invalid, aborting processing.';
- }
- } elseif ($frame_size == strlen($framedata)) {
- // this is the last frame, just skip
- $info['warning'][] = 'This was the last ID3v2 frame.';
- } else {
- // next frame is invalid too, abort processing
- //unset($framedata);
- $framedata = null;
- $info['warning'][] = 'Invalid ID3v2 frame size, aborting.';
- }
- if (!$this->IsValidID3v2FrameName($frame_name, $id3v2_majorversion)) {
- switch ($frame_name) {
- case "\x00\x00".'MP':
- case "\x00".'MP3':
- case ' MP3':
- case 'MP3e':
- case "\x00".'MP':
- case ' MP':
- case 'MP3':
- $info['warning'][] = 'error parsing "'.$frame_name.'" ('.$framedataoffset.' bytes into the ID3v2.'.$id3v2_majorversion.' tag). (ERROR: !IsValidID3v2FrameName("'.str_replace("\x00", ' ', $frame_name).'", '.$id3v2_majorversion.'))). [Note: this particular error has been known to happen with tags edited by "MP3ext (www.mutschler.de/mp3ext/)"]';
- break;
- default:
- $info['warning'][] = 'error parsing "'.$frame_name.'" ('.$framedataoffset.' bytes into the ID3v2.'.$id3v2_majorversion.' tag). (ERROR: !IsValidID3v2FrameName("'.str_replace("\x00", ' ', $frame_name).'", '.$id3v2_majorversion.'))).';
- break;
- }
- } elseif (!isset($framedata) || ($frame_size > strlen($framedata))) {
- $info['error'][] = 'error parsing "'.$frame_name.'" ('.$framedataoffset.' bytes into the ID3v2.'.$id3v2_majorversion.' tag). (ERROR: $frame_size ('.$frame_size.') > strlen($framedata) ('.(isset($framedata) ? strlen($framedata) : 'null').')).';
- } else {
- $info['error'][] = 'error parsing "'.$frame_name.'" ('.$framedataoffset.' bytes into the ID3v2.'.$id3v2_majorversion.' tag).';
- }
- }
- $framedataoffset += ($frame_size + $this->ID3v2HeaderLength($id3v2_majorversion));
- }
- }
- // Footer
- // The footer is a copy of the header, but with a different identifier.
- // ID3v2 identifier "3DI"
- // ID3v2 version $04 00
- // ID3v2 flags %abcd0000
- // ID3v2 size 4 * %0xxxxxxx
- if (isset($thisfile_id3v2_flags['isfooter']) && $thisfile_id3v2_flags['isfooter']) {
- $footer = fread($this->getid3->fp, 10);
- if (substr($footer, 0, 3) == '3DI') {
- $thisfile_id3v2['footer'] = true;
- $thisfile_id3v2['majorversion_footer'] = ord($footer{3});
- $thisfile_id3v2['minorversion_footer'] = ord($footer{4});
- }
- if ($thisfile_id3v2['majorversion_footer'] <= 4) {
- $id3_flags = ord(substr($footer{5}));
- $thisfile_id3v2_flags['unsynch_footer'] = (bool) ($id3_flags & 0x80);
- $thisfile_id3v2_flags['extfoot_footer'] = (bool) ($id3_flags & 0x40);
- $thisfile_id3v2_flags['experim_footer'] = (bool) ($id3_flags & 0x20);
- $thisfile_id3v2_flags['isfooter_footer'] = (bool) ($id3_flags & 0x10);
- $thisfile_id3v2['footerlength'] = getid3_lib::BigEndian2Int(substr($footer, 6, 4), 1);
- }
- } // end footer
- if (isset($thisfile_id3v2['comments']['genre'])) {
- foreach ($thisfile_id3v2['comments']['genre'] as $key => $value) {
- unset($thisfile_id3v2['comments']['genre'][$key]);
- $thisfile_id3v2['comments'] = getid3_lib::array_merge_noclobber($thisfile_id3v2['comments'], array('genre'=>$this->ParseID3v2GenreString($value)));
- }
- }
- if (isset($thisfile_id3v2['comments']['track'])) {
- foreach ($thisfile_id3v2['comments']['track'] as $key => $value) {
- if (strstr($value, '/')) {
- list($thisfile_id3v2['comments']['tracknum'][$key], $thisfile_id3v2['comments']['totaltracks'][$key]) = explode('/', $thisfile_id3v2['comments']['track'][$key]);
- }
- }
- }
- if (!isset($thisfile_id3v2['comments']['year']) && !empty($thisfile_id3v2['comments']['recording_time'][0]) && preg_match('#^([0-9]{4})#', trim($thisfile_id3v2['comments']['recording_time'][0]), $matches)) {
- $thisfile_id3v2['comments']['year'] = array($matches[1]);
- }
- if (!empty($thisfile_id3v2['TXXX'])) {
- // MediaMonkey does this, maybe others: write a blank RGAD frame, but put replay-gain adjustment values in TXXX frames
- foreach ($thisfile_id3v2['TXXX'] as $txxx_array) {
- switch ($txxx_array['description']) {
- case 'replaygain_track_gain':
- if (empty($info['replay_gain']['track']['adjustment']) && !empty($txxx_array['data'])) {
- $info['replay_gain']['track']['adjustment'] = floatval(trim(str_replace('dB', '', $txxx_array['data'])));
- }
- break;
- case 'replaygain_track_peak':
- if (empty($info['replay_gain']['track']['peak']) && !empty($txxx_array['data'])) {
- $info['replay_gain']['track']['peak'] = floatval($txxx_array['data']);
- }
- break;
- case 'replaygain_album_gain':
- if (empty($info['replay_gain']['album']['adjustment']) && !empty($txxx_array['data'])) {
- $info['replay_gain']['album']['adjustment'] = floatval(trim(str_replace('dB', '', $txxx_array['data'])));
- }
- break;
- }
- }
- }
- // Set avdataoffset
- $info['avdataoffset'] = $thisfile_id3v2['headerlength'];
- if (isset($thisfile_id3v2['footer'])) {
- $info['avdataoffset'] += 10;
- }
- return true;
- }
- function ParseID3v2GenreString($genrestring) {
- // Parse genres into arrays of genreName and genreID
- // ID3v2.2.x, ID3v2.3.x: '(21)' or '(4)Eurodisco' or '(51)(39)' or '(55)((I think...)'
- // ID3v2.4.x: '21' $00 'Eurodisco' $00
- $clean_genres = array();
- if (strpos($genrestring, "\x00") === false) {
- $genrestring = preg_replace('#\(([0-9]{1,3})\)#', '$1'."\x00", $genrestring);
- }
- $genre_elements = explode("\x00", $genrestring);
- foreach ($genre_elements as $element) {
- $element = trim($element);
- if ($element) {
- if (preg_match('#^[0-9]{1,3}#', $element)) {
- $clean_genres[] = getid3_id3v1::LookupGenreName($element);
- } else {
- $clean_genres[] = str_replace('((', '(', $element);
- }
- }
- }
- return $clean_genres;
- }
- function ParseID3v2Frame(&$parsedFrame) {
- // shortcuts
- $info = &$this->getid3->info;
- $id3v2_majorversion = $info['id3v2']['majorversion'];
- $parsedFrame['framenamelong'] = $this->FrameNameLongLookup($parsedFrame['frame_name']);
- if (empty($parsedFrame['framenamelong'])) {
- unset($parsedFrame['framenamelong']);
- }
- $parsedFrame['framenameshort'] = $this->FrameNameShortLookup($parsedFrame['frame_name']);
- if (empty($parsedFrame['framenameshort'])) {
- unset($parsedFrame['framenameshort']);
- }
- if ($id3v2_majorversion >= 3) { // frame flags are not part of the ID3v2.2 standard
- if ($id3v2_majorversion == 3) {
- // Frame Header Flags
- // %abc00000 %ijk00000
- $parsedFrame['flags']['TagAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x8000); // a - Tag alter preservation
- $parsedFrame['flags']['FileAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x4000); // b - File alter preservation
- $parsedFrame['flags']['ReadOnly'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x2000); // c - Read only
- $parsedFrame['flags']['compression'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x0080); // i - Compression
- $parsedFrame['flags']['Encryption'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x0040); // j - Encryption
- $parsedFrame['flags']['GroupingIdentity'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x0020); // k - Grouping identity
- } elseif ($id3v2_majorversion == 4) {
- // Frame Header Flags
- // %0abc0000 %0h00kmnp
- $parsedFrame['flags']['TagAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x4000); // a - Tag alter preservation
- $parsedFrame['flags']['FileAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x2000); // b - File alter preservation
- $parsedFrame['flags']['ReadOnly'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x1000); // c - Read only
- $parsedFrame['flags']['GroupingIdentity'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x0040); // h - Grouping identity
- $parsedFrame['flags']['compression'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x0008); // k - Compression
- $parsedFrame['flags']['Encryption'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x0004); // m - Encryption
- $parsedFrame['flags']['Unsynchronisation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x0002); // n - Unsynchronisation
- $parsedFrame['flags']['DataLengthIndicator'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x0001); // p - Data length indicator
- // Frame-level de-unsynchronisation - ID3v2.4
- if ($parsedFrame['flags']['Unsynchronisation']) {
- $parsedFrame['data'] = $this->DeUnsynchronise($parsedFrame['data']);
- }
- if ($parsedFrame['flags']['DataLengthIndicator']) {
- $parsedFrame['data_length_indicator'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 0, 4), 1);
- $parsedFrame['data'] = substr($parsedFrame['data'], 4);
- }
- }
- // Frame-level de-compression
- if ($parsedFrame['flags']['compression']) {
- $parsedFrame['decompressed_size'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 0, 4));
- if (!function_exists('gzuncompress')) {
- $info['warning'][] = 'gzuncompress() support required to decompress ID3v2 frame "'.$parsedFrame['frame_name'].'"';
- } else {
- if ($decompresseddata = @gzuncompress(substr($parsedFrame['data'], 4))) {
- //if ($decompresseddata = @gzuncompress($parsedFrame['data'])) {
- $parsedFrame['data'] = $decompresseddata;
- unset($decompresseddata);
- } else {
- $info['warning'][] = 'gzuncompress() failed on compressed contents of ID3v2 frame "'.$parsedFrame['frame_name'].'"';
- }
- }
- }
- }
- if (!empty($parsedFrame['flags']['DataLengthIndicator'])) {
- if ($parsedFrame['data_length_indicator'] != strlen($parsedFrame['data'])) {
- $info['warning'][] = 'ID3v2 frame "'.$parsedFrame['frame_name'].'" should be '.$parsedFrame['data_length_indicator'].' bytes long according to DataLengthIndicator, but found '.strlen($parsedFrame['data']).' bytes of data';
- }
- }
- if (isset($parsedFrame['datalength']) && ($parsedFrame['datalength'] == 0)) {
- $warning = 'Frame "'.$parsedFrame['frame_name'].'" at offset '.$parsedFrame['dataoffset'].' has no data portion';
- switch ($parsedFrame['frame_name']) {
- case 'WCOM':
- $warning .= ' (this is known to happen with files tagged by RioPort)';
- break;
- default:
- break;
- }
- $info['warning'][] = $warning;
- } elseif ((($id3v2_majorversion >= 3) && ($parsedFrame['frame_name'] == 'UFID')) || // 4.1 UFID Unique file identifier
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'UFI'))) { // 4.1 UFI Unique file identifier
- // There may be more than one 'UFID' frame in a tag,
- // but only one with the same 'Owner identifier'.
- // <Header for 'Unique file identifier', ID: 'UFID'>
- // Owner identifier <text string> $00
- // Identifier <up to 64 bytes binary data>
- $exploded = explode("\x00", $parsedFrame['data'], 2);
- $parsedFrame['ownerid'] = (isset($exploded[0]) ? $exploded[0] : '');
- $parsedFrame['data'] = (isset($exploded[1]) ? $exploded[1] : '');
- } elseif ((($id3v2_majorversion >= 3) && ($parsedFrame['frame_name'] == 'TXXX')) || // 4.2.2 TXXX User defined text information frame
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'TXX'))) { // 4.2.2 TXX User defined text information frame
- // There may be more than one 'TXXX' frame in each tag,
- // but only one with the same description.
- // <Header for 'User defined text information frame', ID: 'TXXX'>
- // Text encoding $xx
- // Description <text string according to encoding> $00 (00)
- // Value <text string according to encoding>
- $frame_offset = 0;
- $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- if ((($id3v2_majorversion <= 3) && ($frame_textencoding > 1)) || (($id3v2_majorversion == 4) && ($frame_textencoding > 3))) {
- $info['warning'][] = 'Invalid text encoding byte ('.$frame_textencoding.') in frame "'.$parsedFrame['frame_name'].'" - defaulting to ISO-8859-1 encoding';
- }
- $frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
- if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
- $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00
- }
- $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
- if (ord($frame_description) === 0) {
- $frame_description = '';
- }
- $parsedFrame['encodingid'] = $frame_textencoding;
- $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
- $parsedFrame['description'] = $frame_description;
- $parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)));
- if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
- $info['id3v2']['comments'][$parsedFrame['framenameshort']][] = trim(getid3_lib::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['data']));
- }
- //unset($parsedFrame['data']); do not unset, may be needed elsewhere, e.g. for replaygain
- } elseif ($parsedFrame['frame_name']{0} == 'T') { // 4.2. T??[?] Text information frame
- // There may only be one text information frame of its kind in an tag.
- // <Header for 'Text information frame', ID: 'T000' - 'TZZZ',
- // excluding 'TXXX' described in 4.2.6.>
- // Text encoding $xx
- // Information <text string(s) according to encoding>
- $frame_offset = 0;
- $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- if ((($id3v2_majorversion <= 3) && ($frame_textencoding > 1)) || (($id3v2_majorversion == 4) && ($frame_textencoding > 3))) {
- $info['warning'][] = 'Invalid text encoding byte ('.$frame_textencoding.') in frame "'.$parsedFrame['frame_name'].'" - defaulting to ISO-8859-1 encoding';
- }
- $parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset);
- $parsedFrame['encodingid'] = $frame_textencoding;
- $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
- if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
- $string = getid3_lib::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['data']);
- $string = rtrim($string, "\x00"); // remove possible terminating null (put by encoding id or software bug)
- $info['id3v2']['comments'][$parsedFrame['framenameshort']][] = $string;
- unset($string);
- }
- } elseif ((($id3v2_majorversion >= 3) && ($parsedFrame['frame_name'] == 'WXXX')) || // 4.3.2 WXXX User defined URL link frame
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'WXX'))) { // 4.3.2 WXX User defined URL link frame
- // There may be more than one 'WXXX' frame in each tag,
- // but only one with the same description
- // <Header for 'User defined URL link frame', ID: 'WXXX'>
- // Text encoding $xx
- // Description <text string according to encoding> $00 (00)
- // URL <text string>
- $frame_offset = 0;
- $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- if ((($id3v2_majorversion <= 3) && ($frame_textencoding > 1)) || (($id3v2_majorversion == 4) && ($frame_textencoding > 3))) {
- $info['warning'][] = 'Invalid text encoding byte ('.$frame_textencoding.') in frame "'.$parsedFrame['frame_name'].'" - defaulting to ISO-8859-1 encoding';
- }
- $frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
- if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
- $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00
- }
- $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
- if (ord($frame_description) === 0) {
- $frame_description = '';
- }
- $parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)));
- $frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding));
- if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
- $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00
- }
- if ($frame_terminatorpos) {
- // there are null bytes after the data - this is not according to spec
- // only use data up to first null byte
- $frame_urldata = (string) substr($parsedFrame['data'], 0, $frame_terminatorpos);
- } else {
- // no null bytes following data, just use all data
- $frame_urldata = (string) $parsedFrame['data'];
- }
- $parsedFrame['encodingid'] = $frame_textencoding;
- $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
- $parsedFrame['url'] = $frame_urldata;
- $parsedFrame['description'] = $frame_description;
- if (!empty($parsedFrame['framenameshort']) && $parsedFrame['url']) {
- $info['id3v2']['comments'][$parsedFrame['framenameshort']][] = getid3_lib::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['url']);
- }
- unset($parsedFrame['data']);
- } elseif ($parsedFrame['frame_name']{0} == 'W') { // 4.3. W??? URL link frames
- // There may only be one URL link frame of its kind in a tag,
- // except when stated otherwise in the frame description
- // <Header for 'URL link frame', ID: 'W000' - 'WZZZ', excluding 'WXXX'
- // described in 4.3.2.>
- // URL <text string>
- $parsedFrame['url'] = trim($parsedFrame['data']);
- if (!empty($parsedFrame['framenameshort']) && $parsedFrame['url']) {
- $info['id3v2']['comments'][$parsedFrame['framenameshort']][] = $parsedFrame['url'];
- }
- unset($parsedFrame['data']);
- } elseif ((($id3v2_majorversion == 3) && ($parsedFrame['frame_name'] == 'IPLS')) || // 4.4 IPLS Involved people list (ID3v2.3 only)
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'IPL'))) { // 4.4 IPL Involved people list (ID3v2.2 only)
- // There may only be one 'IPL' frame in each tag
- // <Header for 'User defined URL link frame', ID: 'IPL'>
- // Text encoding $xx
- // People list strings <textstrings>
- $frame_offset = 0;
- $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- if ((($id3v2_majorversion <= 3) && ($frame_textencoding > 1)) || (($id3v2_majorversion == 4) && ($frame_textencoding > 3))) {
- $info['warning'][] = 'Invalid text encoding byte ('.$frame_textencoding.') in frame "'.$parsedFrame['frame_name'].'" - defaulting to ISO-8859-1 encoding';
- }
- $parsedFrame['encodingid'] = $frame_textencoding;
- $parsedFrame['encoding'] = $this->TextEncodingNameLookup($parsedFrame['encodingid']);
- $parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset);
- if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
- $info['id3v2']['comments'][$parsedFrame['framenameshort']][] = getid3_lib::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['data']);
- }
- } elseif ((($id3v2_majorversion >= 3) && ($parsedFrame['frame_name'] == 'MCDI')) || // 4.4 MCDI Music CD identifier
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'MCI'))) { // 4.5 MCI Music CD identifier
- // There may only be one 'MCDI' frame in each tag
- // <Header for 'Music CD identifier', ID: 'MCDI'>
- // CD TOC <binary data>
- if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
- $info['id3v2']['comments'][$parsedFrame['framenameshort']][] = $parsedFrame['data'];
- }
- } elseif ((($id3v2_majorversion >= 3) && ($parsedFrame['frame_name'] == 'ETCO')) || // 4.5 ETCO Event timing codes
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'ETC'))) { // 4.6 ETC Event timing codes
- // There may only be one 'ETCO' frame in each tag
- // <Header for 'Event timing codes', ID: 'ETCO'>
- // Time stamp format $xx
- // Where time stamp format is:
- // $01 (32-bit value) MPEG frames from beginning of file
- // $02 (32-bit value) milliseconds from beginning of file
- // Followed by a list of key events in the following format:
- // Type of event $xx
- // Time stamp $xx (xx ...)
- // The 'Time stamp' is set to zero if directly at the beginning of the sound
- // or after the previous event. All events MUST be sorted in chronological order.
- $frame_offset = 0;
- $parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- while ($frame_offset < strlen($parsedFrame['data'])) {
- $parsedFrame['typeid'] = substr($parsedFrame['data'], $frame_offset++, 1);
- $parsedFrame['type'] = $this->ETCOEventLookup($parsedFrame['typeid']);
- $parsedFrame['timestamp'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4));
- $frame_offset += 4;
- }
- unset($parsedFrame['data']);
- } elseif ((($id3v2_majorversion >= 3) && ($parsedFrame['frame_name'] == 'MLLT')) || // 4.6 MLLT MPEG location lookup table
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'MLL'))) { // 4.7 MLL MPEG location lookup table
- // There may only be one 'MLLT' frame in each tag
- // <Header for 'Location lookup table', ID: 'MLLT'>
- // MPEG frames between reference $xx xx
- // Bytes between reference $xx xx xx
- // Milliseconds between reference $xx xx xx
- // Bits for bytes deviation $xx
- // Bits for milliseconds dev. $xx
- // Then for every reference the following data is included;
- // Deviation in bytes %xxx....
- // Deviation in milliseconds %xxx....
- $frame_offset = 0;
- $parsedFrame['framesbetweenreferences'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 0, 2));
- $parsedFrame['bytesbetweenreferences'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 2, 3));
- $parsedFrame['msbetweenreferences'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 5, 3));
- $parsedFrame['bitsforbytesdeviation'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 8, 1));
- $parsedFrame['bitsformsdeviation'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], 9, 1));
- $parsedFrame['data'] = substr($parsedFrame['data'], 10);
- while ($frame_offset < strlen($parsedFrame['data'])) {
- $deviationbitstream .= getid3_lib::BigEndian2Bin(substr($parsedFrame['data'], $frame_offset++, 1));
- }
- $reference_counter = 0;
- while (strlen($deviationbitstream) > 0) {
- $parsedFrame[$reference_counter]['bytedeviation'] = bindec(substr($deviationbitstream, 0, $parsedFrame['bitsforbytesdeviation']));
- $parsedFrame[$reference_counter]['msdeviation'] = bindec(substr($deviationbitstream, $parsedFrame['bitsforbytesdeviation'], $parsedFrame['bitsformsdeviation']));
- $deviationbitstream = substr($deviationbitstream, $parsedFrame['bitsforbytesdeviation'] + $parsedFrame['bitsformsdeviation']);
- $reference_counter++;
- }
- unset($parsedFrame['data']);
- } elseif ((($id3v2_majorversion >= 3) && ($parsedFrame['frame_name'] == 'SYTC')) || // 4.7 SYTC Synchronised tempo codes
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'STC'))) { // 4.8 STC Synchronised tempo codes
- // There may only be one 'SYTC' frame in each tag
- // <Header for 'Synchronised tempo codes', ID: 'SYTC'>
- // Time stamp format $xx
- // Tempo data <binary data>
- // Where time stamp format is:
- // $01 (32-bit value) MPEG frames from beginning of file
- // $02 (32-bit value) milliseconds from beginning of file
- $frame_offset = 0;
- $parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- $timestamp_counter = 0;
- while ($frame_offset < strlen($parsedFrame['data'])) {
- $parsedFrame[$timestamp_counter]['tempo'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- if ($parsedFrame[$timestamp_counter]['tempo'] == 255) {
- $parsedFrame[$timestamp_counter]['tempo'] += ord(substr($parsedFrame['data'], $frame_offset++, 1));
- }
- $parsedFrame[$timestamp_counter]['timestamp'] = getid3_lib::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4));
- $frame_offset += 4;
- $timestamp_counter++;
- }
- unset($parsedFrame['data']);
- } elseif ((($id3v2_majorversion >= 3) && ($parsedFrame['frame_name'] == 'USLT')) || // 4.8 USLT Unsynchronised lyric/text transcription
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'ULT'))) { // 4.9 ULT Unsynchronised lyric/text transcription
- // There may be more than one 'Unsynchronised lyrics/text transcription' frame
- // in each tag, but only one with the same language and content descriptor.
- // <Header for 'Unsynchronised lyrics/text transcription', ID: 'USLT'>
- // Text encoding $xx
- // Language $xx xx xx
- // Content descriptor <text string according to encoding> $00 (00)
- // Lyrics/text <full text string according to encoding>
- $frame_offset = 0;
- $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- if ((($id3v2_majorversion <= 3) && ($frame_textencoding > 1)) || (($id3v2_majorversion == 4) && ($frame_textencoding > 3))) {
- $info['warning'][] = 'Invalid text encoding byte ('.$frame_textencoding.') in frame "'.$parsedFrame['frame_name'].'" - defaulting to ISO-8859-1 encoding';
- }
- $frame_language = substr($parsedFrame['data'], $frame_offset, 3);
- $frame_offset += 3;
- $frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
- if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
- $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00
- }
- $frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
- if (ord($frame_description) === 0) {
- $frame_description = '';
- }
- $parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)));
- $parsedFrame['encodingid'] = $frame_textencoding;
- $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
- $parsedFrame['data'] = $parsedFrame['data'];
- $parsedFrame['language'] = $frame_language;
- $parsedFrame['languagename'] = $this->LanguageLookup($frame_language, false);
- $parsedFrame['description'] = $frame_description;
- if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
- $info['id3v2']['comments'][$parsedFrame['framenameshort']][] = getid3_lib::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['data']);
- }
- unset($parsedFrame['data']);
- } elseif ((($id3v2_majorversion >= 3) && ($parsedFrame['frame_name'] == 'SYLT')) || // 4.9 SYLT Synchronised lyric/text
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'SLT'))) { // 4.10 SLT Synchronised lyric/text
- // There may be more than one 'SYLT' frame in each tag,
- // but only one with the same language and content descriptor.
- // <Header for 'Synchronised lyrics/text', ID: 'SYLT'>
- // Text encoding $xx
- // Language $xx xx xx
- // Time stamp format $xx
- // $01 (32-bit value) MPEG frames from beginning of file
- // $02 (32-bit value) milliseconds from beginning of file
- // Content type $xx
- // Content descriptor <text string according to encoding> $00 (00)
- // Terminated text to be synced (typically a syllable)
- // Sync identifier (terminator to above string) $00 (00)
- // Time stamp $xx (xx ...)
- $frame_offset = 0;
- $frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- if ((($id3v2_majorversion <= 3) && ($frame_textencoding > 1)) || (($id3v2_majorversion == 4) && ($frame_textencoding > 3))) {
- $info['warning'][] = 'Invalid text encoding byte ('.$frame_textencoding.') in frame "'.$parsedFrame['frame_name'].'" - defaulting to ISO-8859-1 encoding';
- }
- $frame_language = substr($parsedFrame['data'], $frame_offset, 3);
- $frame_offset += 3;
- $parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- $parsedFrame['contenttypeid'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
- $parsedFrame['contenttype'] = $this->SYTLContentTypeLookup($parsedFrame['contenttypeid']);
- $parsedFrame['encodingid'] = $frame_textencoding;
- $parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
- $parsedFrame['language'] = $frame_language;
- $parsedFrame['languagename'] = $this->LanguageLookup($frame_language, false);
- $timestampindex = 0;
- $frame_remainingdata = substr($parsedFrame['data'], $frame_offset);
- while (strlen($frame_remainingdata)) {
- $frame_offset = 0;
- $frame_terminatorpos = strpos($frame_remainingdata, $this->TextEncodingTerminatorLookup($frame_textencoding));
- if ($frame_terminatorpos === false) {
- $frame_remainingdata = '';
- } else {
- if (ord(substr($frame_remainingdata, $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
- $frame_terminatorpos++; // strpos() fooled because 2nd byte of Unicode chars are often 0x00
- }
- $parsedFrame['lyrics'][$timestampindex]['data'] = substr($frame_remainingdata, $frame_offset, $frame_terminatorpos - $frame_offset);
- $frame_remainingdata = substr($frame_remainingdata, $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)));
- if (($timestampindex == 0) && (ord($frame_remainingdata{0}) != 0)) {
- // timestamp probably omitted for first data item
- } else {
- $parsedFrame['lyrics'][$timestampindex]['timestamp'] = getid3_lib::BigEndian2Int(substr($frame_remainingdata, 0, 4));
- $frame_remainingdata = substr($frame_remainingdata, 4);
- }
- $timestampindex++;
- }
- }
- unset($parsedFrame['data']);
- } elseif ((($id3v2_majorversion >= 3) && ($parsedFrame['frame_name'] == 'COMM')) || // 4.10 COMM Comments
- (($id3v2_majorversion == 2) && ($parsedFrame['frame_name'] == 'COM'))) { // 4.11 COM Comments
- // There may be more than one comment frame in each tag,
- // but only one with the same language and content descriptor.
- // <Header for 'Comment', ID: 'COMM'>
- // Text encoding $xx
- // Language $xx xx xx
- // Short content descrip. <text string according to encoding> $00 (00)
- // The actual text <full text string according to encoding>
- if (strlen($parsedFrame['data']) < 5) {
- $info['warning'][] = 'Invalid data (too short) for "'.$parsedFrame['frame_name'].'" frame at offset '.$parsedFrame['dataoffset'];
- } else {
- $frame_o…
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