public function Analyze()
{
$getid3 = $this->getid3;
$getid3->info['riff']['raw'] = array();
$info_riff =& $getid3->info['riff'];
$info_riff_raw =& $info_riff['raw'];
$info_audio =& $getid3->info['audio'];
$info_video =& $getid3->info['video'];
$info_avdataoffset =& $getid3->info['avdataoffset'];
$info_avdataend =& $getid3->info['avdataend'];
$info_audio_dataformat =& $info_audio['dataformat'];
$info_riff_audio =& $info_riff['audio'];
$info_riff_video =& $info_riff['video'];
$original['avdataend'] = $info_avdataend;
$this->fseek($info_avdataoffset, SEEK_SET);
$riff_header = $this->fread(12);
$riff_sub_type = substr($riff_header, 8, 4);
switch (substr($riff_header, 0, 4)) {
case 'FORM':
$getid3->info['fileformat'] = 'aiff';
$this->endian_function = 'BigEndian2Int';
$riff_header_size = getid3_lib::BigEndian2Int(substr($riff_header, 4, 4));
$info_riff[$riff_sub_type] = $this->ParseRIFF($info_avdataoffset + 12, $info_avdataoffset + $riff_header_size);
$info_riff['header_size'] = $riff_header_size;
break;
case 'RIFF':
case 'SDSS':
// SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com)
// SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com)
case 'RMP3':
// RMP3 is identical to RIFF, just renamed. Used by [unknown program] when creating RIFF-MP3s
if ($riff_sub_type == 'RMP3') {
$riff_sub_type = 'WAVE';
}
$getid3->info['fileformat'] = 'riff';
$this->endian_function = 'LittleEndian2Int';
$riff_header_size = getid3_lib::LittleEndian2Int(substr($riff_header, 4, 4));
$info_riff[$riff_sub_type] = $this->ParseRIFF($info_avdataoffset + 12, $info_avdataoffset + $riff_header_size);
$info_riff['header_size'] = $riff_header_size;
if ($riff_sub_type == 'WAVE') {
$info_riff_wave =& $info_riff['WAVE'];
}
break;
default:
throw new getid3_exception('Cannot parse RIFF (this is maybe not a RIFF / WAV / AVI file?) - expecting "FORM|RIFF|SDSS|RMP3" found "' . $riff_sub_type . '" instead');
}
$endian_function = $this->endian_function;
$stream_index = 0;
switch ($riff_sub_type) {
case 'WAVE':
if (empty($info_audio['bitrate_mode'])) {
$info_audio['bitrate_mode'] = 'cbr';
}
if (empty($info_audio_dataformat)) {
$info_audio_dataformat = 'wav';
}
if (isset($info_riff_wave['data'][0]['offset'])) {
$info_avdataoffset = $info_riff_wave['data'][0]['offset'] + 8;
$info_avdataend = $info_avdataoffset + $info_riff_wave['data'][0]['size'];
}
if (isset($info_riff_wave['fmt '][0]['data'])) {
$info_riff_audio[$stream_index] = getid3_riff::RIFFparseWAVEFORMATex($info_riff_wave['fmt '][0]['data']);
$info_audio['wformattag'] = $info_riff_audio[$stream_index]['raw']['wFormatTag'];
$info_riff_raw['fmt '] = $info_riff_audio[$stream_index]['raw'];
unset($info_riff_audio[$stream_index]['raw']);
$info_audio['streams'][$stream_index] = $info_riff_audio[$stream_index];
$info_audio = getid3_riff::array_merge_noclobber($info_audio, $info_riff_audio[$stream_index]);
if (substr($info_audio['codec'], 0, strlen('unknown: 0x')) == 'unknown: 0x') {
$getid3->warning('Audio codec = ' . $info_audio['codec']);
}
$info_audio['bitrate'] = $info_riff_audio[$stream_index]['bitrate'];
$getid3->info['playtime_seconds'] = (double) (($info_avdataend - $info_avdataoffset) * 8 / $info_audio['bitrate']);
$info_audio['lossless'] = false;
if (isset($info_riff_wave['data'][0]['offset']) && isset($info_riff_raw['fmt ']['wFormatTag'])) {
switch ($info_riff_raw['fmt ']['wFormatTag']) {
case 0x1:
// PCM
$info_audio['lossless'] = true;
break;
case 0x2000:
// AC-3
$info_audio_dataformat = 'ac3';
break;
default:
// do nothing
break;
}
}
$info_audio['streams'][$stream_index]['wformattag'] = $info_audio['wformattag'];
$info_audio['streams'][$stream_index]['bitrate_mode'] = $info_audio['bitrate_mode'];
$info_audio['streams'][$stream_index]['lossless'] = $info_audio['lossless'];
$info_audio['streams'][$stream_index]['dataformat'] = $info_audio_dataformat;
}
if (isset($info_riff_wave['rgad'][0]['data'])) {
// shortcuts
$rgadData =& $info_riff_wave['rgad'][0]['data'];
$info_riff_raw['rgad'] = array('track' => array(), 'album' => array());
$info_riff_raw_rgad =& $info_riff_raw['rgad'];
$info_riff_raw_rgad_track =& $info_riff_raw_rgad['track'];
$info_riff_raw_rgad_album =& $info_riff_raw_rgad['album'];
$info_riff_raw_rgad['fPeakAmplitude'] = getid3_riff::BigEndian2Float(strrev(substr($rgadData, 0, 4)));
// LittleEndian2Float()
$info_riff_raw_rgad['nRadioRgAdjust'] = getid3_lib::$endian_function(substr($rgadData, 4, 2));
$info_riff_raw_rgad['nAudiophileRgAdjust'] = getid3_lib::$endian_function(substr($rgadData, 6, 2));
$n_track_rg_adjust_bit_string = str_pad(decbin($info_riff_raw_rgad['nRadioRgAdjust']), 16, '0', STR_PAD_LEFT);
$n_album_rg_adjust_bit_string = str_pad(decbin($info_riff_raw_rgad['nAudiophileRgAdjust']), 16, '0', STR_PAD_LEFT);
$info_riff_raw_rgad_track['name'] = bindec(substr($n_track_rg_adjust_bit_string, 0, 3));
$info_riff_raw_rgad_track['originator'] = bindec(substr($n_track_rg_adjust_bit_string, 3, 3));
$info_riff_raw_rgad_track['signbit'] = bindec($n_track_rg_adjust_bit_string[6]);
$info_riff_raw_rgad_track['adjustment'] = bindec(substr($n_track_rg_adjust_bit_string, 7, 9));
$info_riff_raw_rgad_album['name'] = bindec(substr($n_album_rg_adjust_bit_string, 0, 3));
$info_riff_raw_rgad_album['originator'] = bindec(substr($n_album_rg_adjust_bit_string, 3, 3));
$info_riff_raw_rgad_album['signbit'] = bindec($n_album_rg_adjust_bit_string[6]);
$info_riff_raw_rgad_album['adjustment'] = bindec(substr($n_album_rg_adjust_bit_string, 7, 9));
$info_riff['rgad']['peakamplitude'] = $info_riff_raw_rgad['fPeakAmplitude'];
if ($info_riff_raw_rgad_track['name'] != 0 && $info_riff_raw_rgad_track['originator'] != 0) {
$info_riff['rgad']['track']['name'] = getid3_lib_replaygain::NameLookup($info_riff_raw_rgad_track['name']);
$info_riff['rgad']['track']['originator'] = getid3_lib_replaygain::OriginatorLookup($info_riff_raw_rgad_track['originator']);
$info_riff['rgad']['track']['adjustment'] = getid3_lib_replaygain::AdjustmentLookup($info_riff_raw_rgad_track['adjustment'], $info_riff_raw_rgad_track['signbit']);
}
if ($info_riff_raw_rgad_album['name'] != 0 && $info_riff_raw_rgad_album['originator'] != 0) {
$info_riff['rgad']['album']['name'] = getid3_lib_replaygain::NameLookup($info_riff_raw_rgad_album['name']);
$info_riff['rgad']['album']['originator'] = getid3_lib_replaygain::OriginatorLookup($info_riff_raw_rgad_album['originator']);
$info_riff['rgad']['album']['adjustment'] = getid3_lib_replaygain::AdjustmentLookup($info_riff_raw_rgad_album['adjustment'], $info_riff_raw_rgad_album['signbit']);
}
}
if (isset($info_riff_wave['fact'][0]['data'])) {
$info_riff_raw['fact']['NumberOfSamples'] = getid3_lib::$endian_function(substr($info_riff_wave['fact'][0]['data'], 0, 4));
// This should be a good way of calculating exact playtime, but some sample files have had incorrect number of samples, so cannot use this method
// if (!empty($info_riff_raw['fmt ']['nSamplesPerSec'])) {
// $getid3->info['playtime_seconds'] = (float)$info_riff_raw['fact']['NumberOfSamples'] / $info_riff_raw['fmt ']['nSamplesPerSec'];
// }
}
if (!empty($info_riff_raw['fmt ']['nAvgBytesPerSec'])) {
$info_audio['bitrate'] = (int) $info_riff_raw['fmt ']['nAvgBytesPerSec'] * 8;
}
if (isset($info_riff_wave['bext'][0]['data'])) {
$info_riff_wave_bext_0 =& $info_riff_wave['bext'][0];
getid3_lib::ReadSequence('LittleEndian2Int', $info_riff_wave_bext_0, $info_riff_wave_bext_0['data'], 0, array('title' => -256, 'author' => -32, 'reference' => -32, 'origin_date' => -10, 'origin_time' => -8, 'time_reference' => 8, 'bwf_version' => 1, 'reserved' => 254));
foreach (array('title', 'author', 'reference') as $key) {
$info_riff_wave_bext_0[$key] = trim($info_riff_wave_bext_0[$key]);
}
$info_riff_wave_bext_0['coding_history'] = explode("\r\n", trim(substr($info_riff_wave_bext_0['data'], 601)));
$info_riff_wave_bext_0['origin_date_unix'] = gmmktime(substr($info_riff_wave_bext_0['origin_time'], 0, 2), substr($info_riff_wave_bext_0['origin_time'], 3, 2), substr($info_riff_wave_bext_0['origin_time'], 6, 2), substr($info_riff_wave_bext_0['origin_date'], 5, 2), substr($info_riff_wave_bext_0['origin_date'], 8, 2), substr($info_riff_wave_bext_0['origin_date'], 0, 4));
$info_riff['comments']['author'][] = $info_riff_wave_bext_0['author'];
$info_riff['comments']['title'][] = $info_riff_wave_bext_0['title'];
}
if (isset($info_riff_wave['MEXT'][0]['data'])) {
$info_riff_wave_mext_0 =& $info_riff_wave['MEXT'][0];
$info_riff_wave_mext_0['raw']['sound_information'] = getid3_lib::LittleEndian2Int(substr($info_riff_wave_mext_0['data'], 0, 2));
$info_riff_wave_mext_0['flags']['homogenous'] = (bool) ($info_riff_wave_mext_0['raw']['sound_information'] & 0x1);
if ($info_riff_wave_mext_0['flags']['homogenous']) {
$info_riff_wave_mext_0['flags']['padding'] = $info_riff_wave_mext_0['raw']['sound_information'] & 0x2 ? false : true;
$info_riff_wave_mext_0['flags']['22_or_44'] = (bool) ($info_riff_wave_mext_0['raw']['sound_information'] & 0x4);
$info_riff_wave_mext_0['flags']['free_format'] = (bool) ($info_riff_wave_mext_0['raw']['sound_information'] & 0x8);
$info_riff_wave_mext_0['nominal_frame_size'] = getid3_lib::LittleEndian2Int(substr($info_riff_wave_mext_0['data'], 2, 2));
}
$info_riff_wave_mext_0['anciliary_data_length'] = getid3_lib::LittleEndian2Int(substr($info_riff_wave_mext_0['data'], 6, 2));
$info_riff_wave_mext_0['raw']['anciliary_data_def'] = getid3_lib::LittleEndian2Int(substr($info_riff_wave_mext_0['data'], 8, 2));
$info_riff_wave_mext_0['flags']['anciliary_data_left'] = (bool) ($info_riff_wave_mext_0['raw']['anciliary_data_def'] & 0x1);
$info_riff_wave_mext_0['flags']['anciliary_data_free'] = (bool) ($info_riff_wave_mext_0['raw']['anciliary_data_def'] & 0x2);
$info_riff_wave_mext_0['flags']['anciliary_data_right'] = (bool) ($info_riff_wave_mext_0['raw']['anciliary_data_def'] & 0x4);
}
if (isset($info_riff_wave['cart'][0]['data'])) {
$info_riff_wave_cart_0 =& $info_riff_wave['cart'][0];
getid3_lib::ReadSequence('LittleEndian2Int', $info_riff_wave_cart_0, $info_riff_wave_cart_0['data'], 0, array('version' => -4, 'title' => -64, 'artist' => -64, 'cut_id' => -64, 'client_id' => -64, 'category' => -64, 'classification' => -64, 'out_cue' => -64, 'start_date' => -10, 'start_time' => -8, 'end_date' => -10, 'end_time' => -8, 'producer_app_id' => -64, 'producer_app_version' => -64, 'user_defined_text' => -64));
foreach (array('artist', 'cut_id', 'client_id', 'category', 'classification', 'out_cue', 'start_date', 'start_time', 'end_date', 'end_time', 'producer_app_id', 'producer_app_version', 'user_defined_text') as $key) {
$info_riff_wave_cart_0[$key] = trim($info_riff_wave_cart_0[$key]);
}
$info_riff_wave_cart_0['zero_db_reference'] = getid3_lib::LittleEndian2Int(substr($info_riff_wave_cart_0['data'], 680, 4), true);
for ($i = 0; $i < 8; $i++) {
$info_riff_wave_cart_0['post_time'][$i]['usage_fourcc'] = substr($info_riff_wave_cart_0['data'], 684 + $i * 8, 4);
$info_riff_wave_cart_0['post_time'][$i]['timer_value'] = getid3_lib::LittleEndian2Int(substr($info_riff_wave_cart_0['data'], 684 + $i * 8 + 4, 4));
}
$info_riff_wave_cart_0['url'] = trim(substr($info_riff_wave_cart_0['data'], 748, 1024));
$info_riff_wave_cart_0['tag_text'] = explode("\r\n", trim(substr($info_riff_wave_cart_0['data'], 1772)));
$info_riff['comments']['artist'][] = $info_riff_wave_cart_0['artist'];
$info_riff['comments']['title'][] = $info_riff_wave_cart_0['title'];
}
if (!isset($info_audio['bitrate']) && isset($info_riff_audio[$stream_index]['bitrate'])) {
$info_audio['bitrate'] = $info_riff_audio[$stream_index]['bitrate'];
$getid3->info['playtime_seconds'] = (double) (($info_avdataend - $info_avdataoffset) * 8 / $info_audio['bitrate']);
}
if (@$getid3->info['wavpack']) {
if (!$this->data_string_flag) {
$info_audio_dataformat = 'wavpack';
$info_audio['bitrate_mode'] = 'vbr';
$info_audio['encoder'] = 'WavPack v' . $getid3->info['wavpack']['version'];
// Reset to the way it was - RIFF parsing will have messed this up
$info_avdataend = $original['avdataend'];
$info_audio['bitrate'] = ($info_avdataend - $info_avdataoffset) * 8 / $getid3->info['playtime_seconds'];
$this->fseek($info_avdataoffset - 44, SEEK_SET);
$riff_data = $this->fread(44);
$orignal_riff_header_size = getid3_lib::LittleEndian2Int(substr($riff_data, 4, 4)) + 8;
$orignal_riff_data_size = getid3_lib::LittleEndian2Int(substr($riff_data, 40, 4)) + 44;
if ($orignal_riff_header_size > $orignal_riff_data_size) {
$info_avdataend -= $orignal_riff_header_size - $orignal_riff_data_size;
$this->fseek($info_avdataend, SEEK_SET);
$riff_data .= $this->fread($orignal_riff_header_size - $orignal_riff_data_size);
}
// 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
$riff_data = substr($riff_data, 0, 36) . substr($riff_data, 44) . substr($riff_data, 36, 8);
// Save audio info key
$saved_info_audio = $info_audio;
// Analyze riff_data
$this->AnalyzeString($riff_data);
// Restore info key
$info_audio = $saved_info_audio;
}
}
if (isset($info_riff_raw['fmt ']['wFormatTag'])) {
switch ($info_riff_raw['fmt ']['wFormatTag']) {
case 0x8ae:
// ClearJump LiteWave
$info_audio['bitrate_mode'] = 'vbr';
$info_audio_dataformat = 'litewave';
//typedef struct tagSLwFormat {
// WORD m_wCompFormat; // low byte defines compression method, high byte is compression flags
// DWORD m_dwScale; // scale factor for lossy compression
// DWORD m_dwBlockSize; // number of samples in encoded blocks
// WORD m_wQuality; // alias for the scale factor
// WORD m_wMarkDistance; // distance between marks in bytes
// WORD m_wReserved;
//
// //following paramters are ignored if CF_FILESRC is not set
// DWORD m_dwOrgSize; // original file size in bytes
// WORD m_bFactExists; // indicates if 'fact' chunk exists in the original file
// DWORD m_dwRiffChunkSize; // riff chunk size in the original file
//
// PCMWAVEFORMAT m_OrgWf; // original wave format
// }SLwFormat, *PSLwFormat;
$info_riff['litewave']['raw'] = array();
$info_riff_litewave =& $info_riff['litewave'];
$info_riff_litewave_raw =& $info_riff_litewave['raw'];
getid3_lib::ReadSequence('LittleEndian2Int', $info_riff_litewave_raw, $info_riff_wave['fmt '][0]['data'], 18, array('compression_method' => 1, 'compression_flags' => 1, 'm_dwScale' => 4, 'm_dwBlockSize' => 4, 'm_wQuality' => 2, 'm_wMarkDistance' => 2, 'm_wReserved' => 2, 'm_dwOrgSize' => 4, 'm_bFactExists' => 2, 'm_dwRiffChunkSize' => 4));
//$info_riff_litewave['quality_factor'] = intval(round((2000 - $info_riff_litewave_raw['m_dwScale']) / 20));
$info_riff_litewave['quality_factor'] = $info_riff_litewave_raw['m_wQuality'];
$info_riff_litewave['flags']['raw_source'] = $info_riff_litewave_raw['compression_flags'] & 0x1 ? false : true;
$info_riff_litewave['flags']['vbr_blocksize'] = $info_riff_litewave_raw['compression_flags'] & 0x2 ? false : true;
$info_riff_litewave['flags']['seekpoints'] = (bool) ($info_riff_litewave_raw['compression_flags'] & 0x4);
$info_audio['lossless'] = $info_riff_litewave_raw['m_wQuality'] == 100 ? true : false;
$info_audio['encoder_options'] = '-q' . $info_riff_litewave['quality_factor'];
break;
}
}
if ($info_avdataend > $getid3->info['filesize']) {
switch (@$info_audio_dataformat) {
case 'wavpack':
// WavPack
// WavPack
case 'lpac':
// LPAC
// LPAC
case 'ofr':
// OptimFROG
// OptimFROG
case 'ofs':
// OptimFROG DualStream
// lossless compressed audio formats that keep original RIFF headers - skip warning
break;
case 'litewave':
if ($info_avdataend - $getid3->info['filesize'] == 1) {
// LiteWave appears to incorrectly *not* pad actual output file
// to nearest WORD boundary so may appear to be short by one
// byte, in which case - skip warning
} else {
// Short by more than one byte, throw warning
$getid3->warning('Probably truncated file - expecting ' . $info_riff[$riff_sub_type]['data'][0]['size'] . ' bytes of data, only found ' . ($getid3->info['filesize'] - $info_avdataoffset) . ' (short by ' . ($info_riff[$riff_sub_type]['data'][0]['size'] - ($getid3->info['filesize'] - $info_avdataoffset)) . ' bytes)');
}
break;
default:
if ($info_avdataend - $getid3->info['filesize'] == 1 && $info_riff[$riff_sub_type]['data'][0]['size'] % 2 == 0 && ($getid3->info['filesize'] - $info_avdataoffset) % 2 == 1) {
// output file appears to be incorrectly *not* padded to nearest WORD boundary
// Output less severe warning
$getid3->warning('File should probably be padded to nearest WORD boundary, but it is not (expecting ' . $info_riff[$riff_sub_type]['data'][0]['size'] . ' bytes of data, only found ' . ($getid3->info['filesize'] - $info_avdataoffset) . ' therefore short by ' . ($info_riff[$riff_sub_type]['data'][0]['size'] - ($getid3->info['filesize'] - $info_avdataoffset)) . ' bytes)');
$info_avdataend = $getid3->info['filesize'];
break;
}
// Short by more than one byte, throw warning
$getid3->warning('Probably truncated file - expecting ' . $info_riff[$riff_sub_type]['data'][0]['size'] . ' bytes of data, only found ' . ($getid3->info['filesize'] - $info_avdataoffset) . ' (short by ' . ($info_riff[$riff_sub_type]['data'][0]['size'] - ($getid3->info['filesize'] - $info_avdataoffset)) . ' bytes)');
$info_avdataend = $getid3->info['filesize'];
break;
}
}
if (!empty($getid3->info['mpeg']['audio']['LAME']['audio_bytes'])) {
if ($info_avdataend - $info_avdataoffset - $getid3->info['mpeg']['audio']['LAME']['audio_bytes'] == 1) {
$info_avdataend--;
$getid3->warning('Extra null byte at end of MP3 data assumed to be RIFF padding and therefore ignored');
}
}
if (@$info_audio_dataformat == 'ac3') {
unset($info_audio['bits_per_sample']);
if (!empty($getid3->info['ac3']['bitrate']) && $getid3->info['ac3']['bitrate'] != $info_audio['bitrate']) {
$info_audio['bitrate'] = $getid3->info['ac3']['bitrate'];
}
}
break;
case 'AVI ':
$info_video['bitrate_mode'] = 'vbr';
// maybe not, but probably
$info_video['dataformat'] = 'avi';
$getid3->info['mime_type'] = 'video/avi';
if (isset($info_riff[$riff_sub_type]['movi']['offset'])) {
$info_avdataoffset = $info_riff[$riff_sub_type]['movi']['offset'] + 8;
$info_avdataend = $info_avdataoffset + $info_riff[$riff_sub_type]['movi']['size'];
if ($info_avdataend > $getid3->info['filesize']) {
$getid3->warning('Probably truncated file - expecting ' . $info_riff[$riff_sub_type]['movi']['size'] . ' bytes of data, only found ' . ($getid3->info['filesize'] - $info_avdataoffset) . ' (short by ' . ($info_riff[$riff_sub_type]['movi']['size'] - ($getid3->info['filesize'] - $info_avdataoffset)) . ' bytes)');
$info_avdataend = $getid3->info['filesize'];
}
}
if (isset($info_riff['AVI ']['hdrl']['avih'][$stream_index]['data'])) {
$avihData = $info_riff['AVI ']['hdrl']['avih'][$stream_index]['data'];
$info_riff_raw['avih'] = array();
$info_riff_raw_avih =& $info_riff_raw['avih'];
getid3_lib::ReadSequence($this->endian_function, $info_riff_raw_avih, $avihData, 0, array('dwMicroSecPerFrame' => 4, 'dwMaxBytesPerSec' => 4, 'dwPaddingGranularity' => 4, 'dwFlags' => 4, 'dwTotalFrames' => 4, 'dwInitialFrames' => 4, 'dwStreams' => 4, 'dwSuggestedBufferSize' => 4, 'dwWidth' => 4, 'dwHeight' => 4, 'dwScale' => 4, 'dwRate' => 4, 'dwStart' => 4, 'dwLength' => 4));
$info_riff_raw_avih['flags']['hasindex'] = (bool) ($info_riff_raw_avih['dwFlags'] & 0x10);
$info_riff_raw_avih['flags']['mustuseindex'] = (bool) ($info_riff_raw_avih['dwFlags'] & 0x20);
$info_riff_raw_avih['flags']['interleaved'] = (bool) ($info_riff_raw_avih['dwFlags'] & 0x100);
$info_riff_raw_avih['flags']['trustcktype'] = (bool) ($info_riff_raw_avih['dwFlags'] & 0x800);
$info_riff_raw_avih['flags']['capturedfile'] = (bool) ($info_riff_raw_avih['dwFlags'] & 0x10000);
$info_riff_raw_avih['flags']['copyrighted'] = (bool) ($info_riff_raw_avih['dwFlags'] & 0x20010);
$info_riff_video[$stream_index] = array();
$info_riff_video_current =& $info_riff_video[$stream_index];
if ($info_riff_raw_avih['dwWidth'] > 0) {
$info_riff_video_current['frame_width'] = $info_riff_raw_avih['dwWidth'];
$info_video['resolution_x'] = $info_riff_video_current['frame_width'];
}
if ($info_riff_raw_avih['dwHeight'] > 0) {
$info_riff_video_current['frame_height'] = $info_riff_raw_avih['dwHeight'];
$info_video['resolution_y'] = $info_riff_video_current['frame_height'];
}
if ($info_riff_raw_avih['dwTotalFrames'] > 0) {
$info_riff_video_current['total_frames'] = $info_riff_raw_avih['dwTotalFrames'];
$info_video['total_frames'] = $info_riff_video_current['total_frames'];
}
$info_riff_video_current['frame_rate'] = round(1000000 / $info_riff_raw_avih['dwMicroSecPerFrame'], 3);
$info_video['frame_rate'] = $info_riff_video_current['frame_rate'];
}
if (isset($info_riff['AVI ']['hdrl']['strl']['strh'][0]['data'])) {
if (is_array($info_riff['AVI ']['hdrl']['strl']['strh'])) {
for ($i = 0; $i < count($info_riff['AVI ']['hdrl']['strl']['strh']); $i++) {
if (isset($info_riff['AVI ']['hdrl']['strl']['strh'][$i]['data'])) {
$strh_data = $info_riff['AVI ']['hdrl']['strl']['strh'][$i]['data'];
$strh_fcc_type = substr($strh_data, 0, 4);
if (isset($info_riff['AVI ']['hdrl']['strl']['strf'][$i]['data'])) {
$strf_data = $info_riff['AVI ']['hdrl']['strl']['strf'][$i]['data'];
// shortcut
$info_riff_raw_strf_strh_fcc_type_stream_index =& $info_riff_raw['strf'][$strh_fcc_type][$stream_index];
switch ($strh_fcc_type) {
case 'auds':
$info_audio['bitrate_mode'] = 'cbr';
$info_audio_dataformat = 'wav';
if (isset($info_riff_audio) && is_array($info_riff_audio)) {
$stream_index = count($info_riff_audio);
}
$info_riff_audio[$stream_index] = getid3_riff::RIFFparseWAVEFORMATex($strf_data);
$info_audio['wformattag'] = $info_riff_audio[$stream_index]['raw']['wFormatTag'];
// shortcut
$info_audio['streams'][$stream_index] = $info_riff_audio[$stream_index];
$info_audio_streams_currentstream =& $info_audio['streams'][$stream_index];
if (@$info_audio_streams_currentstream['bits_per_sample'] === 0) {
unset($info_audio_streams_currentstream['bits_per_sample']);
}
$info_audio_streams_currentstream['wformattag'] = $info_audio_streams_currentstream['raw']['wFormatTag'];
unset($info_audio_streams_currentstream['raw']);
// shortcut
$info_riff_raw['strf'][$strh_fcc_type][$stream_index] = $info_riff_audio[$stream_index]['raw'];
unset($info_riff_audio[$stream_index]['raw']);
$info_audio = getid3_riff::array_merge_noclobber($info_audio, $info_riff_audio[$stream_index]);
$info_audio['lossless'] = false;
switch ($info_riff_raw_strf_strh_fcc_type_stream_index['wFormatTag']) {
case 0x1:
// PCM
$info_audio_dataformat = 'wav';
$info_audio['lossless'] = true;
break;
case 0x50:
// MPEG Layer 2 or Layer 1
$info_audio_dataformat = 'mp2';
// Assume Layer-2
break;
case 0x55:
// MPEG Layer 3
$info_audio_dataformat = 'mp3';
break;
case 0xff:
// AAC
$info_audio_dataformat = 'aac';
break;
case 0x161:
// Windows Media v7 / v8 / v9
// Windows Media v7 / v8 / v9
case 0x162:
// Windows Media Professional v9
// Windows Media Professional v9
case 0x163:
// Windows Media Lossess v9
$info_audio_dataformat = 'wma';
break;
case 0x2000:
// AC-3
$info_audio_dataformat = 'ac3';
break;
case 0x2001:
// DTS
$info_audio_dataformat = 'dts';
break;
default:
$info_audio_dataformat = 'wav';
break;
}
$info_audio_streams_currentstream['dataformat'] = $info_audio_dataformat;
$info_audio_streams_currentstream['lossless'] = $info_audio['lossless'];
$info_audio_streams_currentstream['bitrate_mode'] = $info_audio['bitrate_mode'];
break;
case 'iavs':
case 'vids':
// shortcut
$info_riff_raw['strh'][$i] = array();
$info_riff_raw_strh_current =& $info_riff_raw['strh'][$i];
getid3_lib::ReadSequence($this->endian_function, $info_riff_raw_strh_current, $strh_data, 0, array('fccType' => -4, 'fccHandler' => -4, 'dwFlags' => 4, 'wPriority' => 2, 'wLanguage' => 2, 'dwInitialFrames' => 4, 'dwScale' => 4, 'dwRate' => 4, 'dwStart' => 4, 'dwLength' => 4, 'dwSuggestedBufferSize' => 4, 'dwQuality' => 4, 'dwSampleSize' => 4, 'rcFrame' => 4));
$info_riff_video_current['codec'] = getid3_riff::RIFFfourccLookup($info_riff_raw_strh_current['fccHandler']);
$info_video['fourcc'] = $info_riff_raw_strh_current['fccHandler'];
if (!$info_riff_video_current['codec'] && isset($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc']) && getid3_riff::RIFFfourccLookup($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc'])) {
$info_riff_video_current['codec'] = getid3_riff::RIFFfourccLookup($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc']);
$info_video['fourcc'] = $info_riff_raw_strf_strh_fcc_type_stream_index['fourcc'];
}
$info_video['codec'] = $info_riff_video_current['codec'];
$info_video['pixel_aspect_ratio'] = (double) 1;
switch ($info_riff_raw_strh_current['fccHandler']) {
case 'HFYU':
// Huffman Lossless Codec
// Huffman Lossless Codec
case 'IRAW':
// Intel YUV Uncompressed
// Intel YUV Uncompressed
case 'YUY2':
// Uncompressed YUV 4:2:2
$info_video['lossless'] = true;
break;
default:
$info_video['lossless'] = false;
break;
}
switch ($strh_fcc_type) {
case 'vids':
getid3_lib::ReadSequence($this->endian_function, $info_riff_raw_strf_strh_fcc_type_stream_index, $strf_data, 0, array('biSize' => 4, 'biWidth' => 4, 'biHeight' => 4, 'biPlanes' => 2, 'biBitCount' => 2, 'fourcc' => -4, 'biSizeImage' => 4, 'biXPelsPerMeter' => 4, 'biYPelsPerMeter' => 4, 'biClrUsed' => 4, 'biClrImportant' => 4));
$info_video['bits_per_sample'] = $info_riff_raw_strf_strh_fcc_type_stream_index['biBitCount'];
if ($info_riff_video_current['codec'] == 'DV') {
$info_riff_video_current['dv_type'] = 2;
}
break;
case 'iavs':
$info_riff_video_current['dv_type'] = 1;
break;
}
break;
default:
$getid3->warning('Unhandled fccType for stream (' . $i . '): "' . $strh_fcc_type . '"');
break;
}
}
}
if (isset($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc']) && getid3_riff::RIFFfourccLookup($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc'])) {
$info_riff_video_current['codec'] = getid3_riff::RIFFfourccLookup($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc']);
$info_video['codec'] = $info_riff_video_current['codec'];
$info_video['fourcc'] = $info_riff_raw_strf_strh_fcc_type_stream_index['fourcc'];
switch ($info_riff_raw_strf_strh_fcc_type_stream_index['fourcc']) {
case 'HFYU':
// Huffman Lossless Codec
// Huffman Lossless Codec
case 'IRAW':
// Intel YUV Uncompressed
// Intel YUV Uncompressed
case 'YUY2':
// Uncompressed YUV 4:2:2
$info_video['lossless'] = true;
$info_video['bits_per_sample'] = 24;
break;
default:
$info_video['lossless'] = false;
$info_video['bits_per_sample'] = 24;
break;
}
}
}
}
}
break;
case 'CDDA':
$info_audio['bitrate_mode'] = 'cbr';
$info_audio_dataformat = 'cda';
$info_audio['lossless'] = true;
unset($getid3->info['mime_type']);
$info_avdataoffset = 44;
if (isset($info_riff['CDDA']['fmt '][0]['data'])) {
$info_riff_cdda_fmt_0 =& $info_riff['CDDA']['fmt '][0];
getid3_lib::ReadSequence($this->endian_function, $info_riff_cdda_fmt_0, $info_riff_cdda_fmt_0['data'], 0, array('unknown1' => 2, 'track_num' => 2, 'disc_id' => 4, 'start_offset_frame' => 4, 'playtime_frames' => 4, 'unknown6' => 4, 'unknown7' => 4));
$info_riff_cdda_fmt_0['start_offset_seconds'] = (double) $info_riff_cdda_fmt_0['start_offset_frame'] / 75;
$info_riff_cdda_fmt_0['playtime_seconds'] = (double) $info_riff_cdda_fmt_0['playtime_frames'] / 75;
$getid3->info['comments']['track'] = $info_riff_cdda_fmt_0['track_num'];
$getid3->info['playtime_seconds'] = $info_riff_cdda_fmt_0['playtime_seconds'];
// hardcoded data for CD-audio
$info_audio['sample_rate'] = 44100;
$info_audio['channels'] = 2;
$info_audio['bits_per_sample'] = 16;
$info_audio['bitrate'] = $info_audio['sample_rate'] * $info_audio['channels'] * $info_audio['bits_per_sample'];
$info_audio['bitrate_mode'] = 'cbr';
}
break;
case 'AIFF':
case 'AIFC':
$info_audio['bitrate_mode'] = 'cbr';
$info_audio_dataformat = 'aiff';
$info_audio['lossless'] = true;
$getid3->info['mime_type'] = 'audio/x-aiff';
if (isset($info_riff[$riff_sub_type]['SSND'][0]['offset'])) {
$info_avdataoffset = $info_riff[$riff_sub_type]['SSND'][0]['offset'] + 8;
$info_avdataend = $info_avdataoffset + $info_riff[$riff_sub_type]['SSND'][0]['size'];
if ($info_avdataend > $getid3->info['filesize']) {
if ($info_avdataend == $getid3->info['filesize'] + 1 && $getid3->info['filesize'] % 2 == 1) {
// structures rounded to 2-byte boundary, but dumb encoders
// forget to pad end of file to make this actually work
} else {
$getid3->warning('Probable truncated AIFF file: expecting ' . $info_riff[$riff_sub_type]['SSND'][0]['size'] . ' bytes of audio data, only ' . ($getid3->info['filesize'] - $info_avdataoffset) . ' bytes found');
}
$info_avdataend = $getid3->info['filesize'];
}
}
if (isset($info_riff[$riff_sub_type]['COMM'][0]['data'])) {
// shortcut
$info_riff_RIFFsubtype_COMM_0_data =& $info_riff[$riff_sub_type]['COMM'][0]['data'];
$info_riff_audio['channels'] = getid3_lib::BigEndianSyncSafe2Int(substr($info_riff_RIFFsubtype_COMM_0_data, 0, 2));
$info_riff_audio['total_samples'] = getid3_lib::BigEndian2Int(substr($info_riff_RIFFsubtype_COMM_0_data, 2, 4));
$info_riff_audio['bits_per_sample'] = getid3_lib::BigEndianSyncSafe2Int(substr($info_riff_RIFFsubtype_COMM_0_data, 6, 2));
$info_riff_audio['sample_rate'] = (int) getid3_riff::BigEndian2Float(substr($info_riff_RIFFsubtype_COMM_0_data, 8, 10));
if ($info_riff[$riff_sub_type]['COMM'][0]['size'] > 18) {
$info_riff_audio['codec_fourcc'] = substr($info_riff_RIFFsubtype_COMM_0_data, 18, 4);
$codec_name_size = getid3_lib::BigEndian2Int(substr($info_riff_RIFFsubtype_COMM_0_data, 22, 1));
$info_riff_audio['codec_name'] = substr($info_riff_RIFFsubtype_COMM_0_data, 23, $codec_name_size);
switch ($info_riff_audio['codec_name']) {
case 'NONE':
$info_audio['codec'] = 'Pulse Code Modulation (PCM)';
$info_audio['lossless'] = true;
break;
case '':
switch ($info_riff_audio['codec_fourcc']) {
// http://developer.apple.com/qa/snd/snd07.html
case 'sowt':
$info_riff_audio['codec_name'] = 'Two\'s Compliment Little-Endian PCM';
$info_audio['lossless'] = true;
break;
case 'twos':
$info_riff_audio['codec_name'] = 'Two\'s Compliment Big-Endian PCM';
$info_audio['lossless'] = true;
break;
default:
break;
}
break;
default:
$info_audio['codec'] = $info_riff_audio['codec_name'];
$info_audio['lossless'] = false;
break;
}
}
$info_audio['channels'] = $info_riff_audio['channels'];
if ($info_riff_audio['bits_per_sample'] > 0) {
$info_audio['bits_per_sample'] = $info_riff_audio['bits_per_sample'];
}
$info_audio['sample_rate'] = $info_riff_audio['sample_rate'];
$getid3->info['playtime_seconds'] = $info_riff_audio['total_samples'] / $info_audio['sample_rate'];
}
if (isset($info_riff[$riff_sub_type]['COMT'])) {
$comment_count = getid3_lib::BigEndian2Int(substr($info_riff[$riff_sub_type]['COMT'][0]['data'], 0, 2));
$offset = 2;
for ($i = 0; $i < $comment_count; $i++) {
$getid3->info['comments_raw'][$i]['timestamp'] = getid3_lib::BigEndian2Int(substr($info_riff[$riff_sub_type]['COMT'][0]['data'], $offset, 4));
$offset += 4;
$getid3->info['comments_raw'][$i]['marker_id'] = getid3_lib::BigEndianSyncSafe2Int(substr($info_riff[$riff_sub_type]['COMT'][0]['data'], $offset, 2));
$offset += 2;
$comment_length = getid3_lib::BigEndian2Int(substr($info_riff[$riff_sub_type]['COMT'][0]['data'], $offset, 2));
$offset += 2;
$getid3->info['comments_raw'][$i]['comment'] = substr($info_riff[$riff_sub_type]['COMT'][0]['data'], $offset, $comment_length);
$offset += $comment_length;
$getid3->info['comments_raw'][$i]['timestamp_unix'] = getid3_riff::DateMac2Unix($getid3->info['comments_raw'][$i]['timestamp']);
$info_riff['comments']['comment'][] = $getid3->info['comments_raw'][$i]['comment'];
}
}
foreach (array('NAME' => 'title', 'author' => 'artist', '(c) ' => 'copyright', 'ANNO' => 'comment') as $key => $value) {
if (isset($info_riff[$riff_sub_type][$key][0]['data'])) {
$info_riff['comments'][$value][] = $info_riff[$riff_sub_type][$key][0]['data'];
}
}
break;
case '8SVX':
$info_audio['bitrate_mode'] = 'cbr';
$info_audio_dataformat = '8svx';
$info_audio['bits_per_sample'] = 8;
$info_audio['channels'] = 1;
// overridden below, if need be
$getid3->info['mime_type'] = 'audio/x-aiff';
if (isset($info_riff[$riff_sub_type]['BODY'][0]['offset'])) {
$info_avdataoffset = $info_riff[$riff_sub_type]['BODY'][0]['offset'] + 8;
$info_avdataend = $info_avdataoffset + $info_riff[$riff_sub_type]['BODY'][0]['size'];
if ($info_avdataend > $getid3->info['filesize']) {
$getid3->warning('Probable truncated AIFF file: expecting ' . $info_riff[$riff_sub_type]['BODY'][0]['size'] . ' bytes of audio data, only ' . ($getid3->info['filesize'] - $info_avdataoffset) . ' bytes found');
}
}
if (isset($info_riff[$riff_sub_type]['VHDR'][0]['offset'])) {
// shortcut
$info_riff_riff_sub_type_vhdr_0 =& $info_riff[$riff_sub_type]['VHDR'][0];
getid3_lib::ReadSequence('BigEndian2Int', $info_riff_riff_sub_type_vhdr_0, $info_riff_riff_sub_type_vhdr_0['data'], 0, array('oneShotHiSamples' => 4, 'repeatHiSamples' => 4, 'samplesPerHiCycle' => 4, 'samplesPerSec' => 2, 'ctOctave' => 1, 'sCompression' => 1, 'Volume' => -4));
$info_riff_riff_sub_type_vhdr_0['Volume'] = getid3_riff::FixedPoint16_16($info_riff_riff_sub_type_vhdr_0['Volume']);
$info_audio['sample_rate'] = $info_riff_riff_sub_type_vhdr_0['samplesPerSec'];
switch ($info_riff_riff_sub_type_vhdr_0['sCompression']) {
case 0:
$info_audio['codec'] = 'Pulse Code Modulation (PCM)';
$info_audio['lossless'] = true;
$actual_bits_per_sample = 8;
break;
case 1:
$info_audio['codec'] = 'Fibonacci-delta encoding';
$info_audio['lossless'] = false;
$actual_bits_per_sample = 4;
break;
default:
$getid3->warning('Unexpected sCompression value in 8SVX.VHDR chunk - expecting 0 or 1, found "' . sCompression . '"');
break;
}
}
if (isset($info_riff[$riff_sub_type]['CHAN'][0]['data'])) {
$ChannelsIndex = getid3_lib::BigEndian2Int(substr($info_riff[$riff_sub_type]['CHAN'][0]['data'], 0, 4));
switch ($ChannelsIndex) {
case 6:
// Stereo
$info_audio['channels'] = 2;
break;
case 2:
// Left channel only
// Left channel only
case 4:
// Right channel only
$info_audio['channels'] = 1;
break;
default:
$getid3->warning('Unexpected value in 8SVX.CHAN chunk - expecting 2 or 4 or 6, found "' . $ChannelsIndex . '"');
break;
}
}
foreach (array('NAME' => 'title', 'author' => 'artist', '(c) ' => 'copyright', 'ANNO' => 'comment') as $key => $value) {
if (isset($info_riff[$riff_sub_type][$key][0]['data'])) {
$info_riff['comments'][$value][] = $info_riff[$riff_sub_type][$key][0]['data'];
}
}
$info_audio['bitrate'] = $info_audio['sample_rate'] * $actual_bits_per_sample * $info_audio['channels'];
if (!empty($info_audio['bitrate'])) {
$getid3->info['playtime_seconds'] = ($info_avdataend - $info_avdataoffset) / ($info_audio['bitrate'] / 8);
}
break;
case 'CDXA':
$getid3->info['mime_type'] = 'video/mpeg';
if (!empty($info_riff['CDXA']['data'][0]['size'])) {
$GETID3_ERRORARRAY =& $getid3->info['warning'];
if (!$getid3->include_module_optional('audio-video.mpeg')) {
$getid3->warning('MPEG skipped because mpeg module is missing.');
} else {
// Clone getid3 - messing with offsets - better safe than sorry
$clone = clone $getid3;
// Analyse
$mpeg = new getid3_mpeg($clone);
$mpeg->Analyze();
// Import from clone and destroy
$getid3->info['audio'] = $clone->info['audio'];
$getid3->info['video'] = $clone->info['video'];
$getid3->info['mpeg'] = $clone->info['mpeg'];
$getid3->info['warning'] = $clone->info['warning'];
unset($clone);
}
}
break;
default:
throw new getid3_exception('Unknown RIFF type: expecting one of (WAVE|RMP3|AVI |CDDA|AIFF|AIFC|8SVX|CDXA), found "' . $riff_sub_type . '" instead');
}
if (@$info_riff_raw['fmt ']['wFormatTag'] == 1) {
// http://www.mega-nerd.com/erikd/Blog/Windiots/dts.html
$this->fseek($getid3->info['avdataoffset'], SEEK_SET);
$bytes4 = $this->fread(4);
// DTSWAV
if (preg_match('/^\\xFF\\x1F\\x00\\xE8/s', $bytes4)) {
$info_audio_dataformat = 'dts';
} elseif (preg_match('/^\\x7F\\xFF\\x80\\x01/s', $bytes4)) {
$info_audio_dataformat = 'dts';
}
}
if (@is_array($info_riff_wave['DISP'])) {
$info_riff['comments']['title'][] = trim(substr($info_riff_wave['DISP'][count($info_riff_wave['DISP']) - 1]['data'], 4));
}
if (@is_array($info_riff_wave['INFO'])) {
getid3_riff::RIFFCommentsParse($info_riff_wave['INFO'], $info_riff['comments']);
}
if (isset($info_riff_wave['INFO']) && is_array($info_riff_wave['INFO'])) {
foreach (array('IARL' => 'archivallocation', 'IART' => 'artist', 'ICDS' => 'costumedesigner', 'ICMS' => 'commissionedby', 'ICMT' => 'comment', 'ICNT' => 'country', 'ICOP' => 'copyright', 'ICRD' => 'creationdate', 'IDIM' => 'dimensions', 'IDIT' => 'digitizationdate', 'IDPI' => 'resolution', 'IDST' => 'distributor', 'IEDT' => 'editor', 'IENG' => 'engineers', 'IFRM' => 'accountofparts', 'IGNR' => 'genre', 'IKEY' => 'keywords', 'ILGT' => 'lightness', 'ILNG' => 'language', 'IMED' => 'orignalmedium', 'IMUS' => 'composer', 'INAM' => 'title', 'IPDS' => 'productiondesigner', 'IPLT' => 'palette', 'IPRD' => 'product', 'IPRO' => 'producer', 'IPRT' => 'part', 'IRTD' => 'rating', 'ISBJ' => 'subject', 'ISFT' => 'software', 'ISGN' => 'secondarygenre', 'ISHP' => 'sharpness', 'ISRC' => 'sourcesupplier', 'ISRF' => 'digitizationsource', 'ISTD' => 'productionstudio', 'ISTR' => 'starring', 'ITCH' => 'encoded_by', 'IWEB' => 'url', 'IWRI' => 'writer') as $key => $value) {
if (isset($info_riff_wave['INFO'][$key])) {
foreach ($info_riff_wave['INFO'][$key] as $comment_id => $comment_data) {
if (trim($comment_data['data']) != '') {
$info_riff['comments'][$value][] = trim($comment_data['data']);
}
}
}
}
}
if (empty($info_audio['encoder']) && !empty($getid3->info['mpeg']['audio']['LAME']['short_version'])) {
$info_audio['encoder'] = $getid3->info['mpeg']['audio']['LAME']['short_version'];
}
if (!isset($getid3->info['playtime_seconds'])) {
$getid3->info['playtime_seconds'] = 0;
}
if (isset($info_riff_raw['avih']['dwTotalFrames']) && isset($info_riff_raw['avih']['dwMicroSecPerFrame'])) {
$getid3->info['playtime_seconds'] = $info_riff_raw['avih']['dwTotalFrames'] * ($info_riff_raw['avih']['dwMicroSecPerFrame'] / 1000000);
}
if ($getid3->info['playtime_seconds'] > 0) {
if (isset($info_riff_audio) && isset($info_riff_video)) {
if (!isset($getid3->info['bitrate'])) {
$getid3->info['bitrate'] = ($info_avdataend - $info_avdataoffset) / $getid3->info['playtime_seconds'] * 8;
}
} elseif (isset($info_riff_audio) && !isset($info_riff_video)) {
if (!isset($info_audio['bitrate'])) {
$info_audio['bitrate'] = ($info_avdataend - $info_avdataoffset) / $getid3->info['playtime_seconds'] * 8;
}
} elseif (!isset($info_riff_audio) && isset($info_riff_video)) {
if (!isset($info_video['bitrate'])) {
$info_video['bitrate'] = ($info_avdataend - $info_avdataoffset) / $getid3->info['playtime_seconds'] * 8;
}
}
}
if (isset($info_riff_video) && isset($info_audio['bitrate']) && $info_audio['bitrate'] > 0 && $getid3->info['playtime_seconds'] > 0) {
$getid3->info['bitrate'] = ($info_avdataend - $info_avdataoffset) / $getid3->info['playtime_seconds'] * 8;
$info_audio['bitrate'] = 0;
$info_video['bitrate'] = $getid3->info['bitrate'];
foreach ($info_riff_audio as $channelnumber => $audioinfoarray) {
$info_video['bitrate'] -= $audioinfoarray['bitrate'];
$info_audio['bitrate'] += $audioinfoarray['bitrate'];
}
if ($info_video['bitrate'] <= 0) {
unset($info_video['bitrate']);
}
if ($info_audio['bitrate'] <= 0) {
unset($info_audio['bitrate']);
}
}
if (isset($getid3->info['mpeg']['audio'])) {
$info_audio_dataformat = 'mp' . $getid3->info['mpeg']['audio']['layer'];
$info_audio['sample_rate'] = $getid3->info['mpeg']['audio']['sample_rate'];
$info_audio['channels'] = $getid3->info['mpeg']['audio']['channels'];
$info_audio['bitrate'] = $getid3->info['mpeg']['audio']['bitrate'];
$info_audio['bitrate_mode'] = strtolower($getid3->info['mpeg']['audio']['bitrate_mode']);
if (!empty($getid3->info['mpeg']['audio']['codec'])) {
$info_audio['codec'] = $getid3->info['mpeg']['audio']['codec'] . ' ' . $info_audio['codec'];
}
if (!empty($info_audio['streams'])) {
foreach ($info_audio['streams'] as $streamnumber => $streamdata) {
if ($streamdata['dataformat'] == $info_audio_dataformat) {
$info_audio['streams'][$streamnumber]['sample_rate'] = $info_audio['sample_rate'];
$info_audio['streams'][$streamnumber]['channels'] = $info_audio['channels'];
$info_audio['streams'][$streamnumber]['bitrate'] = $info_audio['bitrate'];
$info_audio['streams'][$streamnumber]['bitrate_mode'] = $info_audio['bitrate_mode'];
$info_audio['streams'][$streamnumber]['codec'] = $info_audio['codec'];
}
}
}
$info_audio['encoder_options'] = getid3_mp3::GuessEncoderOptions($getid3->info);
}
if (!empty($info_riff_raw['fmt ']['wBitsPerSample']) && $info_riff_raw['fmt ']['wBitsPerSample'] > 0) {
switch ($info_audio_dataformat) {
case 'ac3':
// ignore bits_per_sample
break;
default:
$info_audio['bits_per_sample'] = $info_riff_raw['fmt ']['wBitsPerSample'];
break;
}
}
if (empty($info_riff_raw)) {
unset($info_riff['raw']);
}
if (empty($info_riff_audio)) {
unset($info_riff['audio']);
}
if (empty($info_riff_video)) {
unset($info_riff['video']);
}
if (empty($info_audio_dataformat)) {
unset($info_audio['dataformat']);
}
if (empty($getid3->info['audio'])) {
unset($getid3->info['audio']);
}
if (empty($info_video)) {
unset($getid3->info['video']);
}
return true;
}
private function ParseID3v2Frame(&$parsed_frame)
{
$getid3 = $this->getid3;
$id3v2_major_version = $getid3->info['id3v2']['majorversion'];
$frame_name_long = getid3_id3v2::FrameNameLongLookup($parsed_frame['frame_name']);
if ($frame_name_long) {
$parsed_frame['framenamelong'] = $frame_name_long;
}
$frame_name_short = getid3_id3v2::FrameNameShortLookup($parsed_frame['frame_name']);
if ($frame_name_short) {
$parsed_frame['framenameshort'] = $frame_name_short;
}
if ($id3v2_major_version >= 3) {
// frame flags are not part of the ID3v2.2 standard
if ($id3v2_major_version == 3) {
// Frame Header Flags
// %abc00000 %ijk00000
$parsed_frame['flags']['TagAlterPreservation'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x8000);
// a - Tag alter preservation
$parsed_frame['flags']['FileAlterPreservation'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x4000);
// b - File alter preservation
$parsed_frame['flags']['ReadOnly'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x2000);
// c - Read only
$parsed_frame['flags']['compression'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x80);
// i - Compression
$parsed_frame['flags']['Encryption'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x40);
// j - Encryption
$parsed_frame['flags']['GroupingIdentity'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x20);
// k - Grouping identity
} elseif ($id3v2_major_version == 4) {
// Frame Header Flags
// %0abc0000 %0h00kmnp
$parsed_frame['flags']['TagAlterPreservation'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x4000);
// a - Tag alter preservation
$parsed_frame['flags']['FileAlterPreservation'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x2000);
// b - File alter preservation
$parsed_frame['flags']['ReadOnly'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x1000);
// c - Read only
$parsed_frame['flags']['GroupingIdentity'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x40);
// h - Grouping identity
$parsed_frame['flags']['compression'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x8);
// k - Compression
$parsed_frame['flags']['Encryption'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x4);
// m - Encryption
$parsed_frame['flags']['Unsynchronisation'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x2);
// n - Unsynchronisation
$parsed_frame['flags']['DataLengthIndicator'] = (bool) ($parsed_frame['frame_flags_raw'] & 0x1);
// p - Data length indicator
// Frame-level de-unsynchronisation - ID3v2.4
if ($parsed_frame['flags']['Unsynchronisation']) {
$parsed_frame['data'] = str_replace("ÿ", "ÿ", $parsed_frame['data']);
}
}
// Frame-level de-compression
if ($parsed_frame['flags']['compression']) {
$parsed_frame['decompressed_size'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], 0, 4));
if (!function_exists('gzuncompress')) {
$getid3->warning('gzuncompress() support required to decompress ID3v2 frame "' . $parsed_frame['frame_name'] . '"');
} elseif ($decompressed_data = @gzuncompress(substr($parsed_frame['data'], 4))) {
$parsed_frame['data'] = $decompressed_data;
} else {
$getid3->warning('gzuncompress() failed on compressed contents of ID3v2 frame "' . $parsed_frame['frame_name'] . '"');
}
}
}
if (isset($parsed_frame['datalength']) && $parsed_frame['datalength'] == 0) {
$warning = 'Frame "' . $parsed_frame['frame_name'] . '" at offset ' . $parsed_frame['dataoffset'] . ' has no data portion';
switch ($parsed_frame['frame_name']) {
case 'WCOM':
$warning .= ' (this is known to happen with files tagged by RioPort)';
break;
default:
break;
}
$getid3->warning($warning);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'UFID' || $id3v2_major_version == 2 && $parsed_frame['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>
$frame_terminator_pos = strpos($parsed_frame['data'], "");
$frame_id_string = substr($parsed_frame['data'], 0, $frame_terminator_pos);
$parsed_frame['ownerid'] = $frame_id_string;
$parsed_frame['data'] = substr($parsed_frame['data'], $frame_terminator_pos + strlen(""));
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'TXXX' || $id3v2_major_version == 2 && $parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$frame_terminator_pos = @strpos($parsed_frame['data'], getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding), $frame_offset);
if (ord(substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// @strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
$parsed_frame['description'] = $frame_description;
$parsed_frame['data'] = substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)));
if (!empty($parsed_frame['framenameshort']) && !empty($parsed_frame['data'])) {
$getid3->info['id3v2']['comments'][$parsed_frame['framenameshort']][] = trim($getid3->iconv($parsed_frame['encoding'], 'UTF-8', $parsed_frame['data']));
}
unset($parsed_frame['data']);
return true;
}
if ($parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$parsed_frame['data'] = (string) substr($parsed_frame['data'], $frame_offset);
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
if (!empty($parsed_frame['framenameshort']) && !empty($parsed_frame['data'])) {
// remove possible terminating \x00 (put by encoding id or software bug)
$string = $getid3->iconv($parsed_frame['encoding'], 'UTF-8', $parsed_frame['data']);
if ($string[strlen($string) - 1] = "") {
$string = substr($string, 0, strlen($string) - 1);
}
$getid3->info['id3v2']['comments'][$parsed_frame['framenameshort']][] = $string;
unset($string);
}
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'WXXX' || $id3v2_major_version == 2 && $parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$frame_terminator_pos = @strpos($parsed_frame['data'], getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding), $frame_offset);
if (ord(substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// @strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$parsed_frame['data'] = substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)));
$frame_terminator_pos = strpos($parsed_frame['data'], getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding));
if (ord(substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
if ($frame_terminator_pos) {
// there are null bytes after the data - this is not according to spec
// only use data up to first null byte
$frame_urldata = (string) substr($parsed_frame['data'], 0, $frame_terminator_pos);
} else {
// no null bytes following data, just use all data
$frame_urldata = (string) $parsed_frame['data'];
}
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
$parsed_frame['url'] = $frame_urldata;
$parsed_frame['description'] = $frame_description;
if (!empty($parsed_frame['framenameshort']) && $parsed_frame['url']) {
$getid3->info['id3v2']['comments'][$parsed_frame['framenameshort']][] = $getid3->iconv($parsed_frame['encoding'], 'UTF-8', $parsed_frame['url']);
}
unset($parsed_frame['data']);
return true;
}
if ($parsed_frame['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>
$parsed_frame['url'] = trim($parsed_frame['data']);
if (!empty($parsed_frame['framenameshort']) && $parsed_frame['url']) {
$getid3->info['id3v2']['comments'][$parsed_frame['framenameshort']][] = $parsed_frame['url'];
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version == 3 && $parsed_frame['frame_name'] == 'IPLS' || $id3v2_major_version == 2 && $parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($parsed_frame['encodingid']);
$parsed_frame['data'] = (string) substr($parsed_frame['data'], $frame_offset);
if (!empty($parsed_frame['framenameshort']) && !empty($parsed_frame['data'])) {
$getid3->info['id3v2']['comments'][$parsed_frame['framenameshort']][] = $getid3->iconv($parsed_frame['encoding'], 'UTF-8', $parsed_frame['data']);
}
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'MCDI' || $id3v2_major_version == 2 && $parsed_frame['frame_name'] == 'MCI') {
// 4.5 MCI Music CD identifier
// There may only be one 'MCDI' frame in each tag
// <Header for 'Music CD identifier', ID: 'MCDI'>
// CD TOC <binary data>
if (!empty($parsed_frame['framenameshort']) && !empty($parsed_frame['data'])) {
$getid3->info['id3v2']['comments'][$parsed_frame['framenameshort']][] = $parsed_frame['data'];
}
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'ETCO' || $id3v2_major_version == 2 && $parsed_frame['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;
$parsed_frame['timestampformat'] = ord($parsed_frame['data'][$frame_offset++]);
while ($frame_offset < strlen($parsed_frame['data'])) {
$parsed_frame['typeid'] = $parsed_frame['data'][$frame_offset++];
$parsed_frame['type'] = getid3_id3v2::ETCOEventLookup($parsed_frame['typeid']);
$parsed_frame['timestamp'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 4));
$frame_offset += 4;
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'MLLT' || $id3v2_major_version == 2 && $parsed_frame['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;
$parsed_frame['framesbetweenreferences'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], 0, 2));
$parsed_frame['bytesbetweenreferences'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], 2, 3));
$parsed_frame['msbetweenreferences'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], 5, 3));
$parsed_frame['bitsforbytesdeviation'] = getid3_lib::BigEndian2Int($parsed_frame['data'][8]);
$parsed_frame['bitsformsdeviation'] = getid3_lib::BigEndian2Int($parsed_frame['data'][9]);
$parsed_frame['data'] = substr($parsed_frame['data'], 10);
while ($frame_offset < strlen($parsed_frame['data'])) {
$deviation_bitstream .= getid3_lib::BigEndian2Bin($parsed_frame['data'][$frame_offset++]);
}
$reference_counter = 0;
while (strlen($deviation_bitstream) > 0) {
$parsed_frame[$reference_counter]['bytedeviation'] = bindec(substr($deviation_bitstream, 0, $parsed_frame['bitsforbytesdeviation']));
$parsed_frame[$reference_counter]['msdeviation'] = bindec(substr($deviation_bitstream, $parsed_frame['bitsforbytesdeviation'], $parsed_frame['bitsformsdeviation']));
$deviation_bitstream = substr($deviation_bitstream, $parsed_frame['bitsforbytesdeviation'] + $parsed_frame['bitsformsdeviation']);
$reference_counter++;
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'SYTC' || $id3v2_major_version == 2 && $parsed_frame['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;
$parsed_frame['timestampformat'] = ord($parsed_frame['data'][$frame_offset++]);
$timestamp_counter = 0;
while ($frame_offset < strlen($parsed_frame['data'])) {
$parsed_frame[$timestamp_counter]['tempo'] = ord($parsed_frame['data'][$frame_offset++]);
if ($parsed_frame[$timestamp_counter]['tempo'] == 255) {
$parsed_frame[$timestamp_counter]['tempo'] += ord($parsed_frame['data'][$frame_offset++]);
}
$parsed_frame[$timestamp_counter]['timestamp'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 4));
$frame_offset += 4;
$timestamp_counter++;
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'USLT' || $id3v2_major_version == 2 && $parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$frame_language = substr($parsed_frame['data'], $frame_offset, 3);
$frame_offset += 3;
if ($frame_offset > strlen($parsed_frame['data'])) {
$frame_offset = strlen($parsed_frame['data']) - 1;
}
$frame_terminator_pos = @strpos($parsed_frame['data'], getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding), $frame_offset);
if (ord(substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// @strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$parsed_frame['data'] = substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)));
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
$parsed_frame['data'] = $parsed_frame['data'];
$parsed_frame['language'] = $frame_language;
$parsed_frame['languagename'] = getid3_id3v2::LanguageLookup($frame_language, false);
$parsed_frame['description'] = $frame_description;
if (!empty($parsed_frame['framenameshort']) && !empty($parsed_frame['data'])) {
$getid3->info['id3v2']['comments'][$parsed_frame['framenameshort']][] = $getid3->iconv($parsed_frame['encoding'], 'UTF-8', $parsed_frame['data']);
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'SYLT' || $id3v2_major_version == 2 && $parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$frame_language = substr($parsed_frame['data'], $frame_offset, 3);
$frame_offset += 3;
$parsed_frame['timestampformat'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['contenttypeid'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['contenttype'] = getid3_id3v2::SYTLContentTypeLookup($parsed_frame['contenttypeid']);
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
$parsed_frame['language'] = $frame_language;
$parsed_frame['languagename'] = getid3_id3v2::LanguageLookup($frame_language, false);
$timestamp_index = 0;
$frame_remaining_data = substr($parsed_frame['data'], $frame_offset);
while (strlen($frame_remaining_data)) {
$frame_offset = 0;
$frame_terminator_pos = strpos($frame_remaining_data, getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding));
if ($frame_terminator_pos === false) {
$frame_remaining_data = '';
} else {
if (ord(substr($frame_remaining_data, $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$parsed_frame['lyrics'][$timestamp_index]['data'] = substr($frame_remaining_data, $frame_offset, $frame_terminator_pos - $frame_offset);
$frame_remaining_data = substr($frame_remaining_data, $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)));
if ($timestamp_index == 0 && ord($frame_remaining_data[0]) != 0) {
// timestamp probably omitted for first data item
} else {
$parsed_frame['lyrics'][$timestamp_index]['timestamp'] = getid3_lib::BigEndian2Int(substr($frame_remaining_data, 0, 4));
$frame_remaining_data = substr($frame_remaining_data, 4);
}
$timestamp_index++;
}
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'COMM' || $id3v2_major_version == 2 && $parsed_frame['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> $00 (00)
// The actual text <full text string according to encoding>
if (strlen($parsed_frame['data']) < 5) {
$getid3->warning('Invalid data (too short) for "' . $parsed_frame['frame_name'] . '" frame at offset ' . $parsed_frame['dataoffset']);
return true;
}
$frame_offset = 0;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$frame_language = substr($parsed_frame['data'], $frame_offset, 3);
$frame_offset += 3;
$frame_terminator_pos = @strpos($parsed_frame['data'], getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding), $frame_offset);
if (ord(substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// @strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_text = (string) substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)));
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
$parsed_frame['language'] = $frame_language;
$parsed_frame['languagename'] = getid3_id3v2::LanguageLookup($frame_language, false);
$parsed_frame['description'] = $frame_description;
$parsed_frame['data'] = $frame_text;
if (!empty($parsed_frame['framenameshort']) && !empty($parsed_frame['data'])) {
$getid3->info['id3v2']['comments'][$parsed_frame['framenameshort']][] = $getid3->iconv($parsed_frame['encoding'], 'UTF-8', $parsed_frame['data']);
}
return true;
}
if ($id3v2_major_version >= 4 && $parsed_frame['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 ...)
$frame_terminator_pos = strpos($parsed_frame['data'], "");
$frame_id_string = substr($parsed_frame['data'], 0, $frame_terminator_pos);
if (ord($frame_id_string) === 0) {
$frame_id_string = '';
}
$frame_remaining_data = substr($parsed_frame['data'], $frame_terminator_pos + strlen(""));
$parsed_frame['description'] = $frame_id_string;
while (strlen($frame_remaining_data)) {
$frame_offset = 0;
$frame_channeltypeid = ord(substr($frame_remaining_data, $frame_offset++, 1));
$parsed_frame[$frame_channeltypeid]['channeltypeid'] = $frame_channeltypeid;
$parsed_frame[$frame_channeltypeid]['channeltype'] = getid3_id3v2::RVA2ChannelTypeLookup($frame_channeltypeid);
$parsed_frame[$frame_channeltypeid]['volumeadjust'] = getid3_lib::BigEndian2Int(substr($frame_remaining_data, $frame_offset, 2), true);
// 16-bit signed
$frame_offset += 2;
$parsed_frame[$frame_channeltypeid]['bitspeakvolume'] = ord(substr($frame_remaining_data, $frame_offset++, 1));
$frame_bytespeakvolume = ceil($parsed_frame[$frame_channeltypeid]['bitspeakvolume'] / 8);
$parsed_frame[$frame_channeltypeid]['peakvolume'] = getid3_lib::BigEndian2Int(substr($frame_remaining_data, $frame_offset, $frame_bytespeakvolume));
$frame_remaining_data = substr($frame_remaining_data, $frame_offset + $frame_bytespeakvolume);
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version == 3 && $parsed_frame['frame_name'] == 'RVAD' || $id3v2_major_version == 2 && $parsed_frame['frame_name'] == 'RVA') {
// 4.12 RVA Relative volume adjustment (ID3v2.2 only)
// There may only be one 'RVA' frame in each tag
// <Header for 'Relative volume adjustment', ID: 'RVA'>
// ID3v2.2 => Increment/decrement %000000ba
// ID3v2.3 => Increment/decrement %00fedcba
// Bits used for volume descr. $xx
// Relative volume change, right $xx xx (xx ...) // a
// Relative volume change, left $xx xx (xx ...) // b
// Peak volume right $xx xx (xx ...)
// Peak volume left $xx xx (xx ...)
// ID3v2.3 only, optional (not present in ID3v2.2):
// Relative volume change, right back $xx xx (xx ...) // c
// Relative volume change, left back $xx xx (xx ...) // d
// Peak volume right back $xx xx (xx ...)
// Peak volume left back $xx xx (xx ...)
// ID3v2.3 only, optional (not present in ID3v2.2):
// Relative volume change, center $xx xx (xx ...) // e
// Peak volume center $xx xx (xx ...)
// ID3v2.3 only, optional (not present in ID3v2.2):
// Relative volume change, bass $xx xx (xx ...) // f
// Peak volume bass $xx xx (xx ...)
$frame_offset = 0;
$frame_incrdecrflags = getid3_lib::BigEndian2Bin($parsed_frame['data'][$frame_offset++]);
$parsed_frame['incdec']['right'] = (bool) substr($frame_incrdecrflags, 6, 1);
$parsed_frame['incdec']['left'] = (bool) substr($frame_incrdecrflags, 7, 1);
$parsed_frame['bitsvolume'] = ord($parsed_frame['data'][$frame_offset++]);
$frame_bytesvolume = ceil($parsed_frame['bitsvolume'] / 8);
$parsed_frame['volumechange']['right'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
if ($parsed_frame['incdec']['right'] === false) {
$parsed_frame['volumechange']['right'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsed_frame['volumechange']['left'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
if ($parsed_frame['incdec']['left'] === false) {
$parsed_frame['volumechange']['left'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsed_frame['peakvolume']['right'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
$parsed_frame['peakvolume']['left'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
if ($id3v2_major_version == 3) {
$parsed_frame['data'] = substr($parsed_frame['data'], $frame_offset);
if (strlen($parsed_frame['data']) > 0) {
$parsed_frame['incdec']['rightrear'] = (bool) substr($frame_incrdecrflags, 4, 1);
$parsed_frame['incdec']['leftrear'] = (bool) substr($frame_incrdecrflags, 5, 1);
$parsed_frame['volumechange']['rightrear'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
if ($parsed_frame['incdec']['rightrear'] === false) {
$parsed_frame['volumechange']['rightrear'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsed_frame['volumechange']['leftrear'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
if ($parsed_frame['incdec']['leftrear'] === false) {
$parsed_frame['volumechange']['leftrear'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsed_frame['peakvolume']['rightrear'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
$parsed_frame['peakvolume']['leftrear'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
}
$parsed_frame['data'] = substr($parsed_frame['data'], $frame_offset);
if (strlen($parsed_frame['data']) > 0) {
$parsed_frame['incdec']['center'] = (bool) substr($frame_incrdecrflags, 3, 1);
$parsed_frame['volumechange']['center'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
if ($parsed_frame['incdec']['center'] === false) {
$parsed_frame['volumechange']['center'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsed_frame['peakvolume']['center'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
}
$parsed_frame['data'] = substr($parsed_frame['data'], $frame_offset);
if (strlen($parsed_frame['data']) > 0) {
$parsed_frame['incdec']['bass'] = (bool) substr($frame_incrdecrflags, 2, 1);
$parsed_frame['volumechange']['bass'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
if ($parsed_frame['incdec']['bass'] === false) {
$parsed_frame['volumechange']['bass'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsed_frame['peakvolume']['bass'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
}
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 4 && $parsed_frame['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;
$frame_interpolationmethod = ord($parsed_frame['data'][$frame_offset++]);
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_id_string = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_id_string) === 0) {
$frame_id_string = '';
}
$parsed_frame['description'] = $frame_id_string;
$frame_remaining_data = substr($parsed_frame['data'], $frame_terminator_pos + strlen(""));
while (strlen($frame_remaining_data)) {
$frame_frequency = getid3_lib::BigEndian2Int(substr($frame_remaining_data, 0, 2)) / 2;
$parsed_frame['data'][$frame_frequency] = getid3_lib::BigEndian2Int(substr($frame_remaining_data, 2, 2), true);
$frame_remaining_data = substr($frame_remaining_data, 4);
}
$parsed_frame['interpolationmethod'] = $frame_interpolationmethod;
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version == 3 && $parsed_frame['frame_name'] == 'EQUA' || $id3v2_major_version == 2 && $parsed_frame['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;
$parsed_frame['adjustmentbits'] = $parsed_frame['data'][$frame_offset++];
$frame_adjustment_bytes = ceil($parsed_frame['adjustmentbits'] / 8);
$frame_remaining_data = (string) substr($parsed_frame['data'], $frame_offset);
while (strlen($frame_remaining_data) > 0) {
$frame_frequencystr = getid3_lib::BigEndian2Bin(substr($frame_remaining_data, 0, 2));
$frame_incdec = (bool) substr($frame_frequencystr, 0, 1);
$frame_frequency = bindec(substr($frame_frequencystr, 1, 15));
$parsed_frame[$frame_frequency]['incdec'] = $frame_incdec;
$parsed_frame[$frame_frequency]['adjustment'] = getid3_lib::BigEndian2Int(substr($frame_remaining_data, 2, $frame_adjustment_bytes));
if ($parsed_frame[$frame_frequency]['incdec'] === false) {
$parsed_frame[$frame_frequency]['adjustment'] *= -1;
}
$frame_remaining_data = substr($frame_remaining_data, 2 + $frame_adjustment_bytes);
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'RVRB' || $id3v2_major_version == 2 && $parsed_frame['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;
$parsed_frame['left'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsed_frame['right'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsed_frame['bouncesL'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['bouncesR'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['feedbackLL'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['feedbackLR'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['feedbackRR'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['feedbackRL'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['premixLR'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['premixRL'] = ord($parsed_frame['data'][$frame_offset++]);
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'APIC' || $id3v2_major_version == 2 && $parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
if ($id3v2_major_version == 2 && strlen($parsed_frame['data']) > $frame_offset) {
$frame_imagetype = substr($parsed_frame['data'], $frame_offset, 3);
if (strtolower($frame_imagetype) == 'ima') {
// complete hack for mp3Rage (www.chaoticsoftware.com) that puts ID3v2.3-formatted
// MIME type instead of 3-char ID3v2.2-format image type (thanks xbhoffØpacbell*net)
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_mimetype = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_mimetype) === 0) {
$frame_mimetype = '';
}
$frame_imagetype = strtoupper(str_replace('image/', '', strtolower($frame_mimetype)));
if ($frame_imagetype == 'JPEG') {
$frame_imagetype = 'JPG';
}
$frame_offset = $frame_terminator_pos + strlen("");
} else {
$frame_offset += 3;
}
}
if ($id3v2_major_version > 2 && strlen($parsed_frame['data']) > $frame_offset) {
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_mimetype = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_mimetype) === 0) {
$frame_mimetype = '';
}
$frame_offset = $frame_terminator_pos + strlen("");
}
$frame_picturetype = ord($parsed_frame['data'][$frame_offset++]);
$frame_terminator_pos = @strpos($parsed_frame['data'], getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding), $frame_offset);
if (ord(substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// @strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
if ($id3v2_major_version == 2) {
$parsed_frame['imagetype'] = $frame_imagetype;
} else {
$parsed_frame['mime'] = $frame_mimetype;
}
$parsed_frame['picturetypeid'] = $frame_picturetype;
$parsed_frame['picturetype'] = getid3_id3v2::APICPictureTypeLookup($frame_picturetype);
$parsed_frame['description'] = $frame_description;
$parsed_frame['data'] = substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)));
if ($getid3->option_tags_images) {
$image_chunk_check = getid3_lib_image_size::get($parsed_frame['data']);
if ($image_chunk_check[2] >= 1 && $image_chunk_check[2] <= 3) {
$parsed_frame['image_mime'] = image_type_to_mime_type($image_chunk_check[2]);
if ($image_chunk_check[0]) {
$parsed_frame['image_width'] = $image_chunk_check[0];
}
if ($image_chunk_check[1]) {
$parsed_frame['image_height'] = $image_chunk_check[1];
}
$parsed_frame['image_bytes'] = strlen($parsed_frame['data']);
}
}
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'GEOB' || $id3v2_major_version == 2 && $parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_mimetype = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_mimetype) === 0) {
$frame_mimetype = '';
}
$frame_offset = $frame_terminator_pos + strlen("");
$frame_terminator_pos = @strpos($parsed_frame['data'], getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding), $frame_offset);
if (ord(substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// @strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_filename = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_filename) === 0) {
$frame_filename = '';
}
$frame_offset = $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding));
$frame_terminator_pos = @strpos($parsed_frame['data'], getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding), $frame_offset);
if (ord(substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// @strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_offset = $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding));
$parsed_frame['objectdata'] = (string) substr($parsed_frame['data'], $frame_offset);
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
$parsed_frame['mime'] = $frame_mimetype;
$parsed_frame['filename'] = $frame_filename;
$parsed_frame['description'] = $frame_description;
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'PCNT' || $id3v2_major_version == 2 && $parsed_frame['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 ...)
$parsed_frame['data'] = getid3_lib::BigEndian2Int($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'POPM' || $id3v2_major_version == 2 && $parsed_frame['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;
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_email_address = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_email_address) === 0) {
$frame_email_address = '';
}
$frame_offset = $frame_terminator_pos + strlen("");
$frame_rating = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['data'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset));
$parsed_frame['email'] = $frame_email_address;
$parsed_frame['rating'] = $frame_rating;
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'RBUF' || $id3v2_major_version == 2 && $parsed_frame['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;
$parsed_frame['buffersize'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 3));
$frame_offset += 3;
$frame_embeddedinfoflags = getid3_lib::BigEndian2Bin($parsed_frame['data'][$frame_offset++]);
$parsed_frame['flags']['embededinfo'] = (bool) substr($frame_embeddedinfoflags, 7, 1);
$parsed_frame['nexttagoffset'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 4));
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version == 2 && $parsed_frame['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;
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_owner_id = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
$frame_offset = $frame_terminator_pos + strlen("");
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_description = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_offset = $frame_terminator_pos + strlen("");
$parsed_frame['ownerid'] = $frame_owner_id;
$parsed_frame['data'] = (string) substr($parsed_frame['data'], $frame_offset);
$parsed_frame['description'] = $frame_description;
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'AENC' || $id3v2_major_version == 2 && $parsed_frame['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;
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_owner_id = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_owner_id) === 0) {
$frame_owner_id == '';
}
$frame_offset = $frame_terminator_pos + strlen("");
$parsed_frame['ownerid'] = $frame_owner_id;
$parsed_frame['previewstart'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsed_frame['previewlength'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsed_frame['encryptioninfo'] = (string) substr($parsed_frame['data'], $frame_offset);
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['frame_name'] == 'LINK' || $id3v2_major_version == 2 && $parsed_frame['frame_name'] == 'LNK') {
// 4.22 LNK Linked information
// There may be more than one 'LINK' frame in a tag,
// but only one with the same contents
// <Header for 'Linked information', ID: 'LINK'>
// ID3v2.3+ => Frame identifier $xx xx xx xx
// ID3v2.2 => Frame identifier $xx xx xx
// URL <text string> $00
// ID and additional data <text string(s)>
$frame_offset = 0;
if ($id3v2_major_version == 2) {
$parsed_frame['frameid'] = substr($parsed_frame['data'], $frame_offset, 3);
$frame_offset += 3;
} else {
$parsed_frame['frameid'] = substr($parsed_frame['data'], $frame_offset, 4);
$frame_offset += 4;
}
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_url = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_url) === 0) {
$frame_url = '';
}
$frame_offset = $frame_terminator_pos + strlen("");
$parsed_frame['url'] = $frame_url;
$parsed_frame['additionaldata'] = (string) substr($parsed_frame['data'], $frame_offset);
if (!empty($parsed_frame['framenameshort']) && $parsed_frame['url']) {
$getid3->info['id3v2']['comments'][$parsed_frame['framenameshort']][] = utf8_encode($parsed_frame['url']);
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['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;
$parsed_frame['timestampformat'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['position'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset));
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$frame_language = substr($parsed_frame['data'], $frame_offset, 3);
$frame_offset += 3;
$parsed_frame['language'] = $frame_language;
$parsed_frame['languagename'] = getid3_id3v2::LanguageLookup($frame_language, false);
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
$parsed_frame['data'] = (string) substr($parsed_frame['data'], $frame_offset);
if (!empty($parsed_frame['framenameshort']) && !empty($parsed_frame['data'])) {
$getid3->info['id3v2']['comments'][$parsed_frame['framenameshort']][] = $getid3->iconv($parsed_frame['encoding'], 'UTF-8', $parsed_frame['data']);
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_pricepaid = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
$frame_offset = $frame_terminator_pos + strlen("");
$parsed_frame['pricepaid']['currencyid'] = substr($frame_pricepaid, 0, 3);
$parsed_frame['pricepaid']['currency'] = getid3_id3v2::LookupCurrencyUnits($parsed_frame['pricepaid']['currencyid']);
$parsed_frame['pricepaid']['value'] = substr($frame_pricepaid, 3);
$parsed_frame['purchasedate'] = substr($parsed_frame['data'], $frame_offset, 8);
if (!getid3_id3v2::IsValidDateStampString($parsed_frame['purchasedate'])) {
$parsed_frame['purchasedateunix'] = gmmktime(0, 0, 0, substr($parsed_frame['purchasedate'], 4, 2), substr($parsed_frame['purchasedate'], 6, 2), substr($parsed_frame['purchasedate'], 0, 4));
}
$frame_offset += 8;
$parsed_frame['seller'] = (string) substr($parsed_frame['data'], $frame_offset);
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['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;
$frame_text_encoding = ord($parsed_frame['data'][$frame_offset++]);
if ($id3v2_major_version <= 3 && $frame_text_encoding > 1 || $id3v2_major_version == 4 && $frame_text_encoding > 3) {
$getid3->warning('Invalid text encoding byte (' . $frame_text_encoding . ') in frame "' . $parsed_frame['frame_name'] . '" - defaulting to ISO-8859-1 encoding');
}
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_price_string = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
$frame_offset = $frame_terminator_pos + strlen("");
$frame_rawpricearray = explode('/', $frame_price_string);
foreach ($frame_rawpricearray as $key => $val) {
$frame_currencyid = substr($val, 0, 3);
$parsed_frame['price'][$frame_currencyid]['currency'] = getid3_id3v2::LookupCurrencyUnits($frame_currencyid);
$parsed_frame['price'][$frame_currencyid]['value'] = substr($val, 3);
}
$frame_date_string = substr($parsed_frame['data'], $frame_offset, 8);
$frame_offset += 8;
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_contacturl = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
$frame_offset = $frame_terminator_pos + strlen("");
$frame_received_as_id = ord($parsed_frame['data'][$frame_offset++]);
$frame_terminator_pos = @strpos($parsed_frame['data'], getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding), $frame_offset);
if (ord(substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// @strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_sellername = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_sellername) === 0) {
$frame_sellername = '';
}
$frame_offset = $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding));
$frame_terminator_pos = @strpos($parsed_frame['data'], getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding), $frame_offset);
if (ord(substr($parsed_frame['data'], $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding)), 1)) === 0) {
$frame_terminator_pos++;
// @strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_offset = $frame_terminator_pos + strlen(getid3_id3v2::TextEncodingTerminatorLookup($frame_text_encoding));
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_mimetype = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
$frame_offset = $frame_terminator_pos + strlen("");
$frame_sellerlogo = substr($parsed_frame['data'], $frame_offset);
$parsed_frame['encodingid'] = $frame_text_encoding;
$parsed_frame['encoding'] = $this->TextEncodingNameLookup($frame_text_encoding);
$parsed_frame['pricevaliduntil'] = $frame_date_string;
$parsed_frame['contacturl'] = $frame_contacturl;
$parsed_frame['receivedasid'] = $frame_received_as_id;
$parsed_frame['receivedas'] = getid3_id3v2::COMRReceivedAsLookup($frame_received_as_id);
$parsed_frame['sellername'] = $frame_sellername;
$parsed_frame['description'] = $frame_description;
$parsed_frame['mime'] = $frame_mimetype;
$parsed_frame['logo'] = $frame_sellerlogo;
unset($parsed_frame['data']);
}
if ($id3v2_major_version >= 3 && $parsed_frame['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;
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_owner_id = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_owner_id) === 0) {
$frame_owner_id = '';
}
$frame_offset = $frame_terminator_pos + strlen("");
$parsed_frame['ownerid'] = $frame_owner_id;
$parsed_frame['methodsymbol'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['data'] = (string) substr($parsed_frame['data'], $frame_offset);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['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;
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_owner_id = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_owner_id) === 0) {
$frame_owner_id = '';
}
$frame_offset = $frame_terminator_pos + strlen("");
$parsed_frame['ownerid'] = $frame_owner_id;
$parsed_frame['groupsymbol'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['data'] = (string) substr($parsed_frame['data'], $frame_offset);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['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;
$frame_terminator_pos = @strpos($parsed_frame['data'], "", $frame_offset);
$frame_owner_id = substr($parsed_frame['data'], $frame_offset, $frame_terminator_pos - $frame_offset);
if (ord($frame_owner_id) === 0) {
$frame_owner_id = '';
}
$frame_offset = $frame_terminator_pos + strlen("");
$parsed_frame['ownerid'] = $frame_owner_id;
$parsed_frame['data'] = (string) substr($parsed_frame['data'], $frame_offset);
return true;
}
if ($id3v2_major_version >= 4 && $parsed_frame['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;
$parsed_frame['groupsymbol'] = ord($parsed_frame['data'][$frame_offset++]);
$parsed_frame['data'] = (string) substr($parsed_frame['data'], $frame_offset);
return true;
}
if ($id3v2_major_version >= 4 && $parsed_frame['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;
$parsed_frame['data'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 4));
return true;
}
if ($id3v2_major_version >= 4 && $parsed_frame['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;
$parsed_frame['datastart'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 4));
$frame_offset += 4;
$parsed_frame['indexeddatalength'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 4));
$frame_offset += 4;
$parsed_frame['indexpoints'] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsed_frame['bitsperpoint'] = ord($parsed_frame['data'][$frame_offset++]);
$frame_bytesperpoint = ceil($parsed_frame['bitsperpoint'] / 8);
for ($i = 0; $i < $frame_indexpoints; $i++) {
$parsed_frame['indexes'][$i] = getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, $frame_bytesperpoint));
$frame_offset += $frame_bytesperpoint;
}
unset($parsed_frame['data']);
return true;
}
if ($id3v2_major_version >= 3 && $parsed_frame['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;
$parsed_frame['peakamplitude'] = (double) getid3_lib::BigEndian2Int(substr($parsed_frame['data'], $frame_offset, 4));
$frame_offset += 4;
$rg_track_adjustment = decbin(substr($parsed_frame['data'], $frame_offset, 2));
$frame_offset += 2;
$rg_album_adjustment = decbin(substr($parsed_frame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsed_frame['raw']['track']['name'] = bindec(substr($rg_track_adjustment, 0, 3));
$parsed_frame['raw']['track']['originator'] = bindec(substr($rg_track_adjustment, 3, 3));
$parsed_frame['raw']['track']['signbit'] = bindec($rg_track_adjustment[6]);
$parsed_frame['raw']['track']['adjustment'] = bindec(substr($rg_track_adjustment, 7, 9));
$parsed_frame['raw']['album']['name'] = bindec(substr($rg_album_adjustment, 0, 3));
$parsed_frame['raw']['album']['originator'] = bindec(substr($rg_album_adjustment, 3, 3));
$parsed_frame['raw']['album']['signbit'] = bindec($rg_album_adjustment[6]);
$parsed_frame['raw']['album']['adjustment'] = bindec(substr($rg_album_adjustment, 7, 9));
$parsed_frame['track']['name'] = getid3_lib_replaygain::NameLookup($parsed_frame['raw']['track']['name']);
$parsed_frame['track']['originator'] = getid3_lib_replaygain::OriginatorLookup($parsed_frame['raw']['track']['originator']);
$parsed_frame['track']['adjustment'] = getid3_lib_replaygain::AdjustmentLookup($parsed_frame['raw']['track']['adjustment'], $parsed_frame['raw']['track']['signbit']);
$parsed_frame['album']['name'] = getid3_lib_replaygain::NameLookup($parsed_frame['raw']['album']['name']);
$parsed_frame['album']['originator'] = getid3_lib_replaygain::OriginatorLookup($parsed_frame['raw']['album']['originator']);
$parsed_frame['album']['adjustment'] = getid3_lib_replaygain::AdjustmentLookup($parsed_frame['raw']['album']['adjustment'], $parsed_frame['raw']['album']['signbit']);
$getid3->info['replay_gain']['track']['peak'] = $parsed_frame['peakamplitude'];
$getid3->info['replay_gain']['track']['originator'] = $parsed_frame['track']['originator'];
$getid3->info['replay_gain']['track']['adjustment'] = $parsed_frame['track']['adjustment'];
$getid3->info['replay_gain']['album']['originator'] = $parsed_frame['album']['originator'];
$getid3->info['replay_gain']['album']['adjustment'] = $parsed_frame['album']['adjustment'];
unset($parsed_frame['data']);
return true;
}
return true;
}
public function decodeMPEGaudioHeader($fd, $offset, &$info, $recursive_search = true, $scan_as_cbr = false, $fast_mpeg_header_scan = false)
{
static $mpeg_audio_version_lookup;
static $mpeg_audio_layer_lookup;
static $mpeg_audio_bitrate_lookup;
static $mpeg_audio_frequency_lookup;
static $mpeg_audio_channel_mode_lookup;
static $mpeg_audio_mode_extension_lookup;
static $mpeg_audio_emphasis_lookup;
if (empty($mpeg_audio_version_lookup)) {
$mpeg_audio_version_lookup = getid3_mp3::MPEGaudioVersionarray();
$mpeg_audio_layer_lookup = getid3_mp3::MPEGaudioLayerarray();
$mpeg_audio_bitrate_lookup = getid3_mp3::MPEGaudioBitratearray();
$mpeg_audio_frequency_lookup = getid3_mp3::MPEGaudioFrequencyarray();
$mpeg_audio_channel_mode_lookup = getid3_mp3::MPEGaudioChannelModearray();
$mpeg_audio_mode_extension_lookup = getid3_mp3::MPEGaudioModeExtensionarray();
$mpeg_audio_emphasis_lookup = getid3_mp3::MPEGaudioEmphasisarray();
}
if ($offset >= $info['avdataend']) {
// non-fatal error: 'end of file encounter looking for MPEG synch'
return;
}
fseek($fd, $offset, SEEK_SET);
$header_string = fread($fd, 226);
// LAME header at offset 36 + 190 bytes of Xing/LAME data
// MP3 audio frame structure:
// $aa $aa $aa $aa [$bb $bb] $cc...
// where $aa..$aa is the four-byte mpeg-audio header (below)
// $bb $bb is the optional 2-byte CRC
// and $cc... is the audio data
$head4 = substr($header_string, 0, 4);
if (isset($mpeg_audio_header_decode_cache[$head4])) {
$mpeg_header_raw_array = $mpeg_audio_header_decode_cache[$head4];
} else {
$mpeg_header_raw_array = getid3_mp3::MPEGaudioHeaderDecode($head4);
$mpeg_audio_header_decode_cache[$head4] = $mpeg_header_raw_array;
}
// Not in cache
if (!isset($mpeg_audio_header_valid_cache[$head4])) {
$mpeg_audio_header_valid_cache[$head4] = getid3_mp3::MPEGaudioHeaderValid($mpeg_header_raw_array, false, false);
}
// shortcut
if (!isset($info['mpeg']['audio'])) {
$info['mpeg']['audio'] = array();
}
$thisfile_mpeg_audio =& $info['mpeg']['audio'];
if ($mpeg_audio_header_valid_cache[$head4]) {
$thisfile_mpeg_audio['raw'] = $mpeg_header_raw_array;
} else {
// non-fatal error: Invalid MPEG audio header at offset $offset
return;
}
if (!$fast_mpeg_header_scan) {
$thisfile_mpeg_audio['version'] = $mpeg_audio_version_lookup[$thisfile_mpeg_audio['raw']['version']];
$thisfile_mpeg_audio['layer'] = $mpeg_audio_layer_lookup[$thisfile_mpeg_audio['raw']['layer']];
$thisfile_mpeg_audio['channelmode'] = $mpeg_audio_channel_mode_lookup[$thisfile_mpeg_audio['raw']['channelmode']];
$thisfile_mpeg_audio['channels'] = $thisfile_mpeg_audio['channelmode'] == 'mono' ? 1 : 2;
$thisfile_mpeg_audio['sample_rate'] = $mpeg_audio_frequency_lookup[$thisfile_mpeg_audio['version']][$thisfile_mpeg_audio['raw']['sample_rate']];
$thisfile_mpeg_audio['protection'] = !$thisfile_mpeg_audio['raw']['protection'];
$thisfile_mpeg_audio['private'] = (bool) $thisfile_mpeg_audio['raw']['private'];
$thisfile_mpeg_audio['modeextension'] = $mpeg_audio_mode_extension_lookup[$thisfile_mpeg_audio['layer']][$thisfile_mpeg_audio['raw']['modeextension']];
$thisfile_mpeg_audio['copyright'] = (bool) $thisfile_mpeg_audio['raw']['copyright'];
$thisfile_mpeg_audio['original'] = (bool) $thisfile_mpeg_audio['raw']['original'];
$thisfile_mpeg_audio['emphasis'] = $mpeg_audio_emphasis_lookup[$thisfile_mpeg_audio['raw']['emphasis']];
$info['audio']['channels'] = $thisfile_mpeg_audio['channels'];
$info['audio']['sample_rate'] = $thisfile_mpeg_audio['sample_rate'];
if ($thisfile_mpeg_audio['protection']) {
$thisfile_mpeg_audio['crc'] = getid3_lib::BigEndian2Int(substr($header_string, 4, 2));
}
}
if ($thisfile_mpeg_audio['raw']['bitrate'] == 15) {
// http://www.hydrogenaudio.org/?act=ST&f=16&t=9682&st=0
$this->getid3->warning('Invalid bitrate index (15), this is a known bug in free-format MP3s encoded by LAME v3.90 - 3.93.1');
$thisfile_mpeg_audio['raw']['bitrate'] = 0;
}
$thisfile_mpeg_audio['padding'] = (bool) $thisfile_mpeg_audio['raw']['padding'];
$thisfile_mpeg_audio['bitrate'] = $mpeg_audio_bitrate_lookup[$thisfile_mpeg_audio['version']][$thisfile_mpeg_audio['layer']][$thisfile_mpeg_audio['raw']['bitrate']];
if ($thisfile_mpeg_audio['bitrate'] == 'free' && $offset == $info['avdataoffset']) {
// only skip multiple frame check if free-format bitstream found at beginning of file
// otherwise is quite possibly simply corrupted data
$recursive_search = false;
}
// For Layer 2 there are some combinations of bitrate and mode which are not allowed.
if (!$fast_mpeg_header_scan && $thisfile_mpeg_audio['layer'] == '2') {
$info['audio']['dataformat'] = 'mp2';
switch ($thisfile_mpeg_audio['channelmode']) {
case 'mono':
if ($thisfile_mpeg_audio['bitrate'] == 'free' || $thisfile_mpeg_audio['bitrate'] <= 192000) {
// these are ok
} else {
// non-fatal error: bitrate not allowed in Layer 2/mono
return;
}
break;
case 'stereo':
case 'joint stereo':
case 'dual channel':
if ($thisfile_mpeg_audio['bitrate'] == 'free' || $thisfile_mpeg_audio['bitrate'] == 64000 || $thisfile_mpeg_audio['bitrate'] >= 96000) {
// these are ok
} else {
// non-fatal error: bitrate not allowed in Layer 2/stereo/joint stereo/dual channel
return;
}
break;
}
}
if ($info['audio']['sample_rate'] > 0) {
$thisfile_mpeg_audio['framelength'] = getid3_mp3::MPEGaudioFrameLength($thisfile_mpeg_audio['bitrate'], $thisfile_mpeg_audio['version'], $thisfile_mpeg_audio['layer'], (int) $thisfile_mpeg_audio['padding'], $info['audio']['sample_rate']);
}
$next_frame_test_offset = $offset + 1;
if ($thisfile_mpeg_audio['bitrate'] != 'free') {
$info['audio']['bitrate'] = $thisfile_mpeg_audio['bitrate'];
if (isset($thisfile_mpeg_audio['framelength'])) {
$next_frame_test_offset = $offset + $thisfile_mpeg_audio['framelength'];
} else {
// non-fatal error: Frame at offset('.$offset.') is has an invalid frame length.
return;
}
}
$expected_number_of_audio_bytes = 0;
////////////////////////////////////////////////////////////////////////////////////
// Variable-bitrate headers
if (substr($header_string, 4 + 32, 4) == 'VBRI') {
// Fraunhofer VBR header is hardcoded 'VBRI' at offset 0x24 (36)
// specs taken from http://minnie.tuhs.org/pipermail/mp3encoder/2001-January/001800.html
$thisfile_mpeg_audio['bitrate_mode'] = 'vbr';
$thisfile_mpeg_audio['VBR_method'] = 'Fraunhofer';
$info['audio']['codec'] = 'Fraunhofer';
$side_info_data = substr($header_string, 4 + 2, 32);
$fraunhofer_vbr_offset = 36;
$thisfile_mpeg_audio['VBR_encoder_version'] = getid3_lib::BigEndian2Int(substr($header_string, $fraunhofer_vbr_offset + 4, 2));
// VbriVersion
$thisfile_mpeg_audio['VBR_encoder_delay'] = getid3_lib::BigEndian2Int(substr($header_string, $fraunhofer_vbr_offset + 6, 2));
// VbriDelay
$thisfile_mpeg_audio['VBR_quality'] = getid3_lib::BigEndian2Int(substr($header_string, $fraunhofer_vbr_offset + 8, 2));
// VbriQuality
$thisfile_mpeg_audio['VBR_bytes'] = getid3_lib::BigEndian2Int(substr($header_string, $fraunhofer_vbr_offset + 10, 4));
// VbriStreamBytes
$thisfile_mpeg_audio['VBR_frames'] = getid3_lib::BigEndian2Int(substr($header_string, $fraunhofer_vbr_offset + 14, 4));
// VbriStreamFrames
$thisfile_mpeg_audio['VBR_seek_offsets'] = getid3_lib::BigEndian2Int(substr($header_string, $fraunhofer_vbr_offset + 18, 2));
// VbriTableSize
$thisfile_mpeg_audio['VBR_seek_scale'] = getid3_lib::BigEndian2Int(substr($header_string, $fraunhofer_vbr_offset + 20, 2));
// VbriTableScale
$thisfile_mpeg_audio['VBR_entry_bytes'] = getid3_lib::BigEndian2Int(substr($header_string, $fraunhofer_vbr_offset + 22, 2));
// VbriEntryBytes
$thisfile_mpeg_audio['VBR_entry_frames'] = getid3_lib::BigEndian2Int(substr($header_string, $fraunhofer_vbr_offset + 24, 2));
// VbriEntryFrames
$expected_number_of_audio_bytes = $thisfile_mpeg_audio['VBR_bytes'];
$previous_byte_offset = $offset;
for ($i = 0; $i < $thisfile_mpeg_audio['VBR_seek_offsets']; $i++) {
$fraunhofer_offset_n = getid3_lib::BigEndian2Int(substr($header_string, $fraunhofer_vbr_offset, $thisfile_mpeg_audio['VBR_entry_bytes']));
$fraunhofer_vbr_offset += $thisfile_mpeg_audio['VBR_entry_bytes'];
$thisfile_mpeg_audio['VBR_offsets_relative'][$i] = $fraunhofer_offset_n * $thisfile_mpeg_audio['VBR_seek_scale'];
$thisfile_mpeg_audio['VBR_offsets_absolute'][$i] = $fraunhofer_offset_n * $thisfile_mpeg_audio['VBR_seek_scale'] + $previous_byte_offset;
$previous_byte_offset += $fraunhofer_offset_n;
}
} else {
// Xing VBR header is hardcoded 'Xing' at a offset 0x0D (13), 0x15 (21) or 0x24 (36)
// depending on MPEG layer and number of channels
$vbr_id_offset = getid3_mp3::XingVBRidOffset($thisfile_mpeg_audio['version'], $thisfile_mpeg_audio['channelmode']);
$side_info_data = substr($header_string, 4 + 2, $vbr_id_offset - 4);
if (substr($header_string, $vbr_id_offset, strlen('Xing')) == 'Xing' || substr($header_string, $vbr_id_offset, strlen('Info')) == 'Info') {
// 'Xing' is traditional Xing VBR frame
// 'Info' is LAME-encoded CBR (This was done to avoid CBR files to be recognized as traditional Xing VBR files by some decoders.)
// 'Info' *can* legally be used to specify a VBR file as well, however.
// http://www.multiweb.cz/twoinches/MP3inside.htm
//00..03 = "Xing" or "Info"
//04..07 = Flags:
// 0x01 Frames Flag set if value for number of frames in file is stored
// 0x02 Bytes Flag set if value for filesize in bytes is stored
// 0x04 TOC Flag set if values for TOC are stored
// 0x08 VBR Scale Flag set if values for VBR scale is stored
//08..11 Frames: Number of frames in file (including the first Xing/Info one)
//12..15 Bytes: File length in Bytes
//16..115 TOC (Table of Contents):
// Contains of 100 indexes (one Byte length) for easier lookup in file. Approximately solves problem with moving inside file.
// Each Byte has a value according this formula:
// (TOC[i] / 256) * fileLenInBytes
// So if song lasts eg. 240 sec. and you want to jump to 60. sec. (and file is 5 000 000 Bytes length) you can use:
// TOC[(60/240)*100] = TOC[25]
// and corresponding Byte in file is then approximately at:
// (TOC[25]/256) * 5000000
//116..119 VBR Scale
// should be safe to leave this at 'vbr' and let it be overriden to 'cbr' if a CBR preset/mode is used by LAME
$thisfile_mpeg_audio['bitrate_mode'] = 'vbr';
$thisfile_mpeg_audio['VBR_method'] = 'Xing';
$thisfile_mpeg_audio['xing_flags_raw'] = getid3_lib::BigEndian2Int(substr($header_string, $vbr_id_offset + 4, 4));
$thisfile_mpeg_audio['xing_flags']['frames'] = (bool) ($thisfile_mpeg_audio['xing_flags_raw'] & 0x1);
$thisfile_mpeg_audio['xing_flags']['bytes'] = (bool) ($thisfile_mpeg_audio['xing_flags_raw'] & 0x2);
$thisfile_mpeg_audio['xing_flags']['toc'] = (bool) ($thisfile_mpeg_audio['xing_flags_raw'] & 0x4);
$thisfile_mpeg_audio['xing_flags']['vbr_scale'] = (bool) ($thisfile_mpeg_audio['xing_flags_raw'] & 0x8);
if ($thisfile_mpeg_audio['xing_flags']['frames']) {
$thisfile_mpeg_audio['VBR_frames'] = getid3_lib::BigEndian2Int(substr($header_string, $vbr_id_offset + 8, 4));
}
if ($thisfile_mpeg_audio['xing_flags']['bytes']) {
$thisfile_mpeg_audio['VBR_bytes'] = getid3_lib::BigEndian2Int(substr($header_string, $vbr_id_offset + 12, 4));
}
if (!empty($thisfile_mpeg_audio['VBR_frames']) && !empty($thisfile_mpeg_audio['VBR_bytes'])) {
$frame_lengthfloat = $thisfile_mpeg_audio['VBR_bytes'] / $thisfile_mpeg_audio['VBR_frames'];
if ($thisfile_mpeg_audio['layer'] == '1') {
// BitRate = (((FrameLengthInBytes / 4) - Padding) * SampleRate) / 12
$info['audio']['bitrate'] = $frame_lengthfloat / 4 * $thisfile_mpeg_audio['sample_rate'] * (2 / $info['audio']['channels']) / 12;
} else {
// Bitrate = ((FrameLengthInBytes - Padding) * SampleRate) / 144
$info['audio']['bitrate'] = $frame_lengthfloat * $thisfile_mpeg_audio['sample_rate'] * (2 / $info['audio']['channels']) / 144;
}
$thisfile_mpeg_audio['framelength'] = floor($frame_lengthfloat);
}
if ($thisfile_mpeg_audio['xing_flags']['toc']) {
$lame_toc_data = substr($header_string, $vbr_id_offset + 16, 100);
for ($i = 0; $i < 100; $i++) {
$thisfile_mpeg_audio['toc'][$i] = ord($lame_toc_data[$i]);
}
}
if ($thisfile_mpeg_audio['xing_flags']['vbr_scale']) {
$thisfile_mpeg_audio['VBR_scale'] = getid3_lib::BigEndian2Int(substr($header_string, $vbr_id_offset + 116, 4));
}
// http://gabriel.mp3-tech.org/mp3infotag.html
if (substr($header_string, $vbr_id_offset + 120, 4) == 'LAME') {
// shortcut
$thisfile_mpeg_audio['LAME'] = array();
$thisfile_mpeg_audio_lame =& $thisfile_mpeg_audio['LAME'];
$thisfile_mpeg_audio_lame['long_version'] = substr($header_string, $vbr_id_offset + 120, 20);
$thisfile_mpeg_audio_lame['short_version'] = substr($thisfile_mpeg_audio_lame['long_version'], 0, 9);
if ($thisfile_mpeg_audio_lame['short_version'] >= 'LAME3.90') {
// extra 11 chars are not part of version string when LAMEtag present
unset($thisfile_mpeg_audio_lame['long_version']);
// It the LAME tag was only introduced in LAME v3.90
// http://www.hydrogenaudio.org/?act=ST&f=15&t=9933
// Offsets of various bytes in http://gabriel.mp3-tech.org/mp3infotag.html
// are assuming a 'Xing' identifier offset of 0x24, which is the case for
// MPEG-1 non-mono, but not for other combinations
$lame_tag_offset_contant = $vbr_id_offset - 0x24;
// shortcuts
$thisfile_mpeg_audio_lame['RGAD'] = array('track' => array(), 'album' => array());
$thisfile_mpeg_audio_lame_rgad =& $thisfile_mpeg_audio_lame['RGAD'];
$thisfile_mpeg_audio_lame_rgad_track =& $thisfile_mpeg_audio_lame_rgad['track'];
$thisfile_mpeg_audio_lame_rgad_album =& $thisfile_mpeg_audio_lame_rgad['album'];
$thisfile_mpeg_audio_lame['raw'] = array();
$thisfile_mpeg_audio_lame_raw =& $thisfile_mpeg_audio_lame['raw'];
// byte $9B VBR Quality
// This field is there to indicate a quality level, although the scale was not precised in the original Xing specifications.
// Actually overwrites original Xing bytes
unset($thisfile_mpeg_audio['VBR_scale']);
$thisfile_mpeg_audio_lame['vbr_quality'] = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0x9b, 1));
// bytes $9C-$A4 Encoder short VersionString
$thisfile_mpeg_audio_lame['short_version'] = substr($header_string, $lame_tag_offset_contant + 0x9c, 9);
// byte $A5 Info Tag revision + VBR method
$lame_tagRevisionVBRmethod = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xa5, 1));
$thisfile_mpeg_audio_lame['tag_revision'] = ($lame_tagRevisionVBRmethod & 0xf0) >> 4;
$thisfile_mpeg_audio_lame_raw['vbr_method'] = $lame_tagRevisionVBRmethod & 0xf;
$thisfile_mpeg_audio_lame['vbr_method'] = getid3_mp3::LAMEvbrMethodLookup($thisfile_mpeg_audio_lame_raw['vbr_method']);
$thisfile_mpeg_audio['bitrate_mode'] = substr($thisfile_mpeg_audio_lame['vbr_method'], 0, 3);
// usually either 'cbr' or 'vbr', but truncates 'vbr-old / vbr-rh' to 'vbr'
// byte $A6 Lowpass filter value
$thisfile_mpeg_audio_lame['lowpass_frequency'] = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xa6, 1)) * 100;
// bytes $A7-$AE Replay Gain
// http://privatewww.essex.ac.uk/~djmrob/replaygain/rg_data_format.html
// bytes $A7-$AA : 32 bit floating point "Peak signal amplitude"
if ($thisfile_mpeg_audio_lame['short_version'] >= 'LAME3.94b') {
// LAME 3.94a16 and later - 9.23 fixed point
// ie 0x0059E2EE / (2^23) = 5890798 / 8388608 = 0.7022378444671630859375
$thisfile_mpeg_audio_lame_rgad['peak_amplitude'] = (double) (getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xa7, 4)) / 8388608);
} else {
// LAME 3.94a15 and earlier - 32-bit floating point
// Actually 3.94a16 will fall in here too and be WRONG, but is hard to detect 3.94a16 vs 3.94a15
$thisfile_mpeg_audio_lame_rgad['peak_amplitude'] = getid3_lib::LittleEndian2Float(substr($header_string, $lame_tag_offset_contant + 0xa7, 4));
}
if ($thisfile_mpeg_audio_lame_rgad['peak_amplitude'] == 0) {
unset($thisfile_mpeg_audio_lame_rgad['peak_amplitude']);
} else {
$thisfile_mpeg_audio_lame_rgad['peak_db'] = 20 * log10($thisfile_mpeg_audio_lame_rgad['peak_amplitude']);
}
$thisfile_mpeg_audio_lame_raw['RGAD_track'] = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xab, 2));
$thisfile_mpeg_audio_lame_raw['RGAD_album'] = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xad, 2));
if ($thisfile_mpeg_audio_lame_raw['RGAD_track'] != 0) {
$thisfile_mpeg_audio_lame_rgad_track['raw']['name'] = ($thisfile_mpeg_audio_lame_raw['RGAD_track'] & 0xe000) >> 13;
$thisfile_mpeg_audio_lame_rgad_track['raw']['originator'] = ($thisfile_mpeg_audio_lame_raw['RGAD_track'] & 0x1c00) >> 10;
$thisfile_mpeg_audio_lame_rgad_track['raw']['sign_bit'] = ($thisfile_mpeg_audio_lame_raw['RGAD_track'] & 0x200) >> 9;
$thisfile_mpeg_audio_lame_rgad_track['raw']['gain_adjust'] = $thisfile_mpeg_audio_lame_raw['RGAD_track'] & 0x1ff;
$thisfile_mpeg_audio_lame_rgad_track['name'] = getid3_lib_replaygain::NameLookup($thisfile_mpeg_audio_lame_rgad_track['raw']['name']);
$thisfile_mpeg_audio_lame_rgad_track['originator'] = getid3_lib_replaygain::OriginatorLookup($thisfile_mpeg_audio_lame_rgad_track['raw']['originator']);
$thisfile_mpeg_audio_lame_rgad_track['gain_db'] = getid3_lib_replaygain::AdjustmentLookup($thisfile_mpeg_audio_lame_rgad_track['raw']['gain_adjust'], $thisfile_mpeg_audio_lame_rgad_track['raw']['sign_bit']);
if (!empty($thisfile_mpeg_audio_lame_rgad['peak_amplitude'])) {
$info['replay_gain']['track']['peak'] = $thisfile_mpeg_audio_lame_rgad['peak_amplitude'];
}
$info['replay_gain']['track']['originator'] = $thisfile_mpeg_audio_lame_rgad_track['originator'];
$info['replay_gain']['track']['adjustment'] = $thisfile_mpeg_audio_lame_rgad_track['gain_db'];
} else {
unset($thisfile_mpeg_audio_lame_rgad['track']);
}
if ($thisfile_mpeg_audio_lame_raw['RGAD_album'] != 0) {
$thisfile_mpeg_audio_lame_rgad_album['raw']['name'] = ($thisfile_mpeg_audio_lame_raw['RGAD_album'] & 0xe000) >> 13;
$thisfile_mpeg_audio_lame_rgad_album['raw']['originator'] = ($thisfile_mpeg_audio_lame_raw['RGAD_album'] & 0x1c00) >> 10;
$thisfile_mpeg_audio_lame_rgad_album['raw']['sign_bit'] = ($thisfile_mpeg_audio_lame_raw['RGAD_album'] & 0x200) >> 9;
$thisfile_mpeg_audio_lame_rgad_album['raw']['gain_adjust'] = $thisfile_mpeg_audio_lame_raw['RGAD_album'] & 0x1ff;
$thisfile_mpeg_audio_lame_rgad_album['name'] = getid3_lib_replaygain::NameLookup($thisfile_mpeg_audio_lame_rgad_album['raw']['name']);
$thisfile_mpeg_audio_lame_rgad_album['originator'] = getid3_lib_replaygain::OriginatorLookup($thisfile_mpeg_audio_lame_rgad_album['raw']['originator']);
$thisfile_mpeg_audio_lame_rgad_album['gain_db'] = getid3_lib_replaygain::AdjustmentLookup($thisfile_mpeg_audio_lame_rgad_album['raw']['gain_adjust'], $thisfile_mpeg_audio_lame_rgad_album['raw']['sign_bit']);
if (!empty($thisfile_mpeg_audio_lame_rgad['peak_amplitude'])) {
$info['replay_gain']['album']['peak'] = $thisfile_mpeg_audio_lame_rgad['peak_amplitude'];
}
$info['replay_gain']['album']['originator'] = $thisfile_mpeg_audio_lame_rgad_album['originator'];
$info['replay_gain']['album']['adjustment'] = $thisfile_mpeg_audio_lame_rgad_album['gain_db'];
} else {
unset($thisfile_mpeg_audio_lame_rgad['album']);
}
if (empty($thisfile_mpeg_audio_lame_rgad)) {
unset($thisfile_mpeg_audio_lame['RGAD']);
}
// byte $AF Encoding flags + ATH Type
$encoding_flags_ath_type = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xaf, 1));
$thisfile_mpeg_audio_lame['encoding_flags']['nspsytune'] = (bool) ($encoding_flags_ath_type & 0x10);
$thisfile_mpeg_audio_lame['encoding_flags']['nssafejoint'] = (bool) ($encoding_flags_ath_type & 0x20);
$thisfile_mpeg_audio_lame['encoding_flags']['nogap_next'] = (bool) ($encoding_flags_ath_type & 0x40);
$thisfile_mpeg_audio_lame['encoding_flags']['nogap_prev'] = (bool) ($encoding_flags_ath_type & 0x80);
$thisfile_mpeg_audio_lame['ath_type'] = $encoding_flags_ath_type & 0xf;
// byte $B0 if ABR {specified bitrate} else {minimal bitrate}
$thisfile_mpeg_audio_lame['raw']['abrbitrate_minbitrate'] = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xb0, 1));
if ($thisfile_mpeg_audio_lame_raw['vbr_method'] == 2) {
// Average BitRate (ABR)
$thisfile_mpeg_audio_lame['bitrate_abr'] = $thisfile_mpeg_audio_lame['raw']['abrbitrate_minbitrate'];
} elseif ($thisfile_mpeg_audio_lame_raw['vbr_method'] == 1) {
// Constant BitRate (CBR)
// ignore
} elseif ($thisfile_mpeg_audio_lame['raw']['abrbitrate_minbitrate'] > 0) {
// Variable BitRate (VBR) - minimum bitrate
$thisfile_mpeg_audio_lame['bitrate_min'] = $thisfile_mpeg_audio_lame['raw']['abrbitrate_minbitrate'];
}
// bytes $B1-$B3 Encoder delays
$encoder_delays = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xb1, 3));
$thisfile_mpeg_audio_lame['encoder_delay'] = ($encoder_delays & 0xfff000) >> 12;
$thisfile_mpeg_audio_lame['end_padding'] = $encoder_delays & 0xfff;
// byte $B4 Misc
$misc_byte = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xb4, 1));
$thisfile_mpeg_audio_lame_raw['noise_shaping'] = $misc_byte & 0x3;
$thisfile_mpeg_audio_lame_raw['stereo_mode'] = ($misc_byte & 0x1c) >> 2;
$thisfile_mpeg_audio_lame_raw['not_optimal_quality'] = ($misc_byte & 0x20) >> 5;
$thisfile_mpeg_audio_lame_raw['source_sample_freq'] = ($misc_byte & 0xc0) >> 6;
$thisfile_mpeg_audio_lame['noise_shaping'] = $thisfile_mpeg_audio_lame_raw['noise_shaping'];
$thisfile_mpeg_audio_lame['stereo_mode'] = getid3_mp3::LAMEmiscStereoModeLookup($thisfile_mpeg_audio_lame_raw['stereo_mode']);
$thisfile_mpeg_audio_lame['not_optimal_quality'] = (bool) $thisfile_mpeg_audio_lame_raw['not_optimal_quality'];
$thisfile_mpeg_audio_lame['source_sample_freq'] = getid3_mp3::LAMEmiscSourceSampleFrequencyLookup($thisfile_mpeg_audio_lame_raw['source_sample_freq']);
// byte $B5 MP3 Gain
$thisfile_mpeg_audio_lame_raw['mp3_gain'] = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xb5, 1), false, true);
$thisfile_mpeg_audio_lame['mp3_gain_db'] = 20 * log10(2) / 4 * $thisfile_mpeg_audio_lame_raw['mp3_gain'];
$thisfile_mpeg_audio_lame['mp3_gain_factor'] = pow(2, $thisfile_mpeg_audio_lame['mp3_gain_db'] / 6);
// bytes $B6-$B7 Preset and surround info
$PresetSurroundBytes = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xb6, 2));
// Reserved = ($PresetSurroundBytes & 0xC000);
$thisfile_mpeg_audio_lame_raw['surround_info'] = $PresetSurroundBytes & 0x3800;
$thisfile_mpeg_audio_lame['surround_info'] = getid3_mp3::LAMEsurroundInfoLookup($thisfile_mpeg_audio_lame_raw['surround_info']);
$thisfile_mpeg_audio_lame['preset_used_id'] = $PresetSurroundBytes & 0x7ff;
$thisfile_mpeg_audio_lame['preset_used'] = getid3_mp3::LAMEpresetUsedLookup($thisfile_mpeg_audio_lame);
if (!empty($thisfile_mpeg_audio_lame['preset_used_id']) && empty($thisfile_mpeg_audio_lame['preset_used'])) {
$this->getid3->warning('Unknown LAME preset used (' . $thisfile_mpeg_audio_lame['preset_used_id'] . ') - please report to info@getid3.org');
}
if ($thisfile_mpeg_audio_lame['short_version'] == 'LAME3.90.' && !empty($thisfile_mpeg_audio_lame['preset_used_id'])) {
// this may change if 3.90.4 ever comes out
$thisfile_mpeg_audio_lame['short_version'] = 'LAME3.90.3';
}
// bytes $B8-$BB MusicLength
$thisfile_mpeg_audio_lame['audio_bytes'] = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xb8, 4));
$expected_number_of_audio_bytes = $thisfile_mpeg_audio_lame['audio_bytes'] > 0 ? $thisfile_mpeg_audio_lame['audio_bytes'] : $thisfile_mpeg_audio['VBR_bytes'];
// bytes $BC-$BD MusicCRC
$thisfile_mpeg_audio_lame['music_crc'] = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xbc, 2));
// bytes $BE-$BF CRC-16 of Info Tag
$thisfile_mpeg_audio_lame['lame_tag_crc'] = getid3_lib::BigEndian2Int(substr($header_string, $lame_tag_offset_contant + 0xbe, 2));
// LAME CBR
if ($thisfile_mpeg_audio_lame_raw['vbr_method'] == 1) {
$thisfile_mpeg_audio['bitrate_mode'] = 'cbr';
$thisfile_mpeg_audio['bitrate'] = getid3_mp3::ClosestStandardMP3Bitrate($thisfile_mpeg_audio['bitrate']);
$info['audio']['bitrate'] = $thisfile_mpeg_audio['bitrate'];
}
}
}
} else {
// not Fraunhofer or Xing VBR methods, most likely CBR (but could be VBR with no header)
$thisfile_mpeg_audio['bitrate_mode'] = 'cbr';
if ($recursive_search) {
$thisfile_mpeg_audio['bitrate_mode'] = 'vbr';
if (getid3_mp3::RecursiveFrameScanning($fd, $info, $offset, $next_frame_test_offset, true)) {
$recursive_search = false;
$thisfile_mpeg_audio['bitrate_mode'] = 'cbr';
}
if ($thisfile_mpeg_audio['bitrate_mode'] == 'vbr') {
$this->getid3->warning('VBR file with no VBR header. Bitrate values calculated from actual frame bitrates.');
}
}
}
}
if ($expected_number_of_audio_bytes > 0 && $expected_number_of_audio_bytes != $info['avdataend'] - $info['avdataoffset']) {
if ($expected_number_of_audio_bytes > $info['avdataend'] - $info['avdataoffset']) {
if ($expected_number_of_audio_bytes - ($info['avdataend'] - $info['avdataoffset']) == 1) {
$this->getid3->warning('Last byte of data truncated (this is a known bug in Meracl ID3 Tag Writer before v1.3.5)');
} else {
$this->getid3->warning('Probable truncated file: expecting ' . $expected_number_of_audio_bytes . ' bytes of audio data, only found ' . ($info['avdataend'] - $info['avdataoffset']) . ' (short by ' . ($expected_number_of_audio_bytes - ($info['avdataend'] - $info['avdataoffset'])) . ' bytes)');
}
} else {
if ($info['avdataend'] - $info['avdataoffset'] - $expected_number_of_audio_bytes == 1) {
$info['avdataend']--;
} else {
$this->getid3->warning('Too much data in file: expecting ' . $expected_number_of_audio_bytes . ' bytes of audio data, found ' . ($info['avdataend'] - $info['avdataoffset']) . ' (' . ($info['avdataend'] - $info['avdataoffset'] - $expected_number_of_audio_bytes) . ' bytes too many)');
}
}
}
if ($thisfile_mpeg_audio['bitrate'] == 'free' && empty($info['audio']['bitrate'])) {
if ($offset == $info['avdataoffset'] && empty($thisfile_mpeg_audio['VBR_frames'])) {
$frame_byte_length = getid3_mp3::FreeFormatFrameLength($fd, $offset, $info, true);
if ($frame_byte_length > 0) {
$thisfile_mpeg_audio['framelength'] = $frame_byte_length;
if ($thisfile_mpeg_audio['layer'] == '1') {
// BitRate = (((FrameLengthInBytes / 4) - Padding) * SampleRate) / 12
$info['audio']['bitrate'] = ($frame_byte_length / 4 - intval($thisfile_mpeg_audio['padding'])) * $thisfile_mpeg_audio['sample_rate'] / 12;
} else {
// Bitrate = ((FrameLengthInBytes - Padding) * SampleRate) / 144
$info['audio']['bitrate'] = ($frame_byte_length - intval($thisfile_mpeg_audio['padding'])) * $thisfile_mpeg_audio['sample_rate'] / 144;
}
} else {
// non-fatal error: Error calculating frame length of free-format MP3 without Xing/LAME header.
return;
}
}
}
if (@$thisfile_mpeg_audio['VBR_frames']) {
switch ($thisfile_mpeg_audio['bitrate_mode']) {
case 'vbr':
case 'abr':
if ($thisfile_mpeg_audio['version'] == '1' && $thisfile_mpeg_audio['layer'] == 1) {
$thisfile_mpeg_audio['VBR_bitrate'] = @$thisfile_mpeg_audio['VBR_bytes'] / $thisfile_mpeg_audio['VBR_frames'] * 8 * ($info['audio']['sample_rate'] / 384);
} elseif (($thisfile_mpeg_audio['version'] == '2' || $thisfile_mpeg_audio['version'] == '2.5') && $thisfile_mpeg_audio['layer'] == 3) {
$thisfile_mpeg_audio['VBR_bitrate'] = @$thisfile_mpeg_audio['VBR_bytes'] / $thisfile_mpeg_audio['VBR_frames'] * 8 * ($info['audio']['sample_rate'] / 576);
} else {
$thisfile_mpeg_audio['VBR_bitrate'] = @$thisfile_mpeg_audio['VBR_bytes'] / $thisfile_mpeg_audio['VBR_frames'] * 8 * ($info['audio']['sample_rate'] / 1152);
}
if ($thisfile_mpeg_audio['VBR_bitrate'] > 0) {
$info['audio']['bitrate'] = $thisfile_mpeg_audio['VBR_bitrate'];
$thisfile_mpeg_audio['bitrate'] = $thisfile_mpeg_audio['VBR_bitrate'];
// to avoid confusion
}
break;
}
}
// End variable-bitrate headers
////////////////////////////////////////////////////////////////////////////////////
if ($recursive_search) {
if (!getid3_mp3::RecursiveFrameScanning($fd, $info, $offset, $next_frame_test_offset, $scan_as_cbr)) {
return false;
}
}
return true;
}
