/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
// initialize these values to an empty array, otherwise they default to NULL
// and you can't append array values to a NULL value
$info['riff'] = array('raw' => array());
// Shortcuts
$thisfile_riff =& $info['riff'];
$thisfile_riff_raw =& $thisfile_riff['raw'];
$thisfile_audio =& $info['audio'];
$thisfile_video =& $info['video'];
$thisfile_audio_dataformat =& $thisfile_audio['dataformat'];
$thisfile_riff_audio =& $thisfile_riff['audio'];
$thisfile_riff_video =& $thisfile_riff['video'];
$Original['avdataoffset'] = $info['avdataoffset'];
$Original['avdataend'] = $info['avdataend'];
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$RIFFheader = fread($this->getid3->fp, 12);
$RIFFsubtype = substr($RIFFheader, 8, 4);
switch (substr($RIFFheader, 0, 4)) {
case 'FORM':
$info['fileformat'] = 'aiff';
$thisfile_riff['header_size'] = $this->EitherEndian2Int(substr($RIFFheader, 4, 4));
$thisfile_riff[$RIFFsubtype] = $this->ParseRIFF($info['avdataoffset'] + 12, $info['avdataoffset'] + $thisfile_riff['header_size']);
break;
case 'RIFF':
// AVI, WAV, etc
// AVI, WAV, etc
case 'SDSS':
// SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com)
// SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com)
case 'RMP3':
// RMP3 is identical to RIFF, just renamed. Used by [unknown program] when creating RIFF-MP3s
$info['fileformat'] = 'riff';
$thisfile_riff['header_size'] = $this->EitherEndian2Int(substr($RIFFheader, 4, 4));
if ($RIFFsubtype == 'RMP3') {
// RMP3 is identical to WAVE, just renamed. Used by [unknown program] when creating RIFF-MP3s
$RIFFsubtype = 'WAVE';
}
$thisfile_riff[$RIFFsubtype] = $this->ParseRIFF($info['avdataoffset'] + 12, $info['avdataoffset'] + $thisfile_riff['header_size']);
if ($info['avdataend'] - $info['filesize'] == 1) {
// LiteWave appears to incorrectly *not* pad actual output file
// to nearest WORD boundary so may appear to be short by one
// byte, in which case - skip warning
$info['avdataend'] = $info['filesize'];
}
$nextRIFFoffset = $Original['avdataoffset'] + 8 + $thisfile_riff['header_size'];
// 8 = "RIFF" + 32-bit offset
while ($nextRIFFoffset < min($info['filesize'], $info['avdataend'])) {
if (!Helper::intValueSupported($nextRIFFoffset + 1024)) {
$info['error'][] = 'AVI extends beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB and PHP filesystem functions cannot read that far, playtime is probably wrong';
$info['warning'][] = '[avdataend] value may be incorrect, multiple AVIX chunks may be present';
break;
} else {
fseek($this->getid3->fp, $nextRIFFoffset, SEEK_SET);
$nextRIFFheader = fread($this->getid3->fp, 12);
if ($nextRIFFoffset == $info['avdataend'] - 1) {
if (substr($nextRIFFheader, 0, 1) == "") {
// RIFF padded to WORD boundary, we're actually already at the end
break;
}
}
$nextRIFFheaderID = substr($nextRIFFheader, 0, 4);
$nextRIFFsize = $this->EitherEndian2Int(substr($nextRIFFheader, 4, 4));
$nextRIFFtype = substr($nextRIFFheader, 8, 4);
$chunkdata = array();
$chunkdata['offset'] = $nextRIFFoffset + 8;
$chunkdata['size'] = $nextRIFFsize;
$nextRIFFoffset = $chunkdata['offset'] + $chunkdata['size'];
switch ($nextRIFFheaderID) {
case 'RIFF':
$info['avdataend'] = $nextRIFFoffset;
if (!Helper::intValueSupported($info['avdataend'])) {
$info['error'][] = 'AVI extends beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB and PHP filesystem functions cannot read that far, playtime is probably wrong';
$info['warning'][] = '[avdataend] value may be incorrect, multiple AVIX chunks may be present';
}
$chunkdata['chunks'] = $this->ParseRIFF($chunkdata['offset'] + 4, $chunkdata['offset'] + $chunkdata['size']);
if (!isset($thisfile_riff[$nextRIFFtype])) {
$thisfile_riff[$nextRIFFtype] = array();
}
$thisfile_riff[$nextRIFFtype][] = $chunkdata;
break;
case 'JUNK':
// ignore
$thisfile_riff[$nextRIFFheaderID][] = $chunkdata;
break;
default:
if ($info['filesize'] == $chunkdata['offset'] - 8 + 128) {
$DIVXTAG = $nextRIFFheader . fread($this->getid3->fp, 128 - 12);
if (substr($DIVXTAG, -7) == 'DIVXTAG') {
// DIVXTAG is supposed to be inside an IDVX chunk in a LIST chunk, but some bad encoders just slap it on the end of a file
$info['warning'][] = 'Found wrongly-structured DIVXTAG at offset ' . (ftell($this->getid3->fp) - 128 + 12) . ', parsing anyway';
$thisfile_riff['DIVXTAG'] = $this->ParseDIVXTAG($DIVXTAG);
foreach ($thisfile_riff['DIVXTAG'] as $key => $value) {
if ($value && !preg_match('#_id$#', $key)) {
$thisfile_riff['comments'][$key][] = $value;
}
}
break 2;
}
}
$info['warning'][] = 'expecting "RIFF" or "JUNK" at ' . $nextRIFFoffset . ', found ' . Helper::PrintHexBytes(substr($nextRIFFheader, 0, 4)) . ' - skipping rest of file';
break 2;
}
}
}
if ($RIFFsubtype == 'WAVE') {
$thisfile_riff_WAVE =& $thisfile_riff['WAVE'];
}
break;
default:
$info['error'][] = 'Cannot parse RIFF (this is maybe not a RIFF / WAV / AVI file?) - expecting "FORM|RIFF|SDSS|RMP3" found "' . $RIFFsubtype . '" instead';
unset($info['fileformat']);
return false;
break;
}
$streamindex = 0;
switch ($RIFFsubtype) {
case 'WAVE':
if (empty($thisfile_audio['bitrate_mode'])) {
$thisfile_audio['bitrate_mode'] = 'cbr';
}
if (empty($thisfile_audio_dataformat)) {
$thisfile_audio_dataformat = 'wav';
}
if (isset($thisfile_riff_WAVE['data'][0]['offset'])) {
$info['avdataoffset'] = $thisfile_riff_WAVE['data'][0]['offset'] + 8;
$info['avdataend'] = $info['avdataoffset'] + $thisfile_riff_WAVE['data'][0]['size'];
}
if (isset($thisfile_riff_WAVE['fmt '][0]['data'])) {
$thisfile_riff_audio[$streamindex] = self::RIFFparseWAVEFORMATex($thisfile_riff_WAVE['fmt '][0]['data']);
$thisfile_audio['wformattag'] = $thisfile_riff_audio[$streamindex]['raw']['wFormatTag'];
if (!isset($thisfile_riff_audio[$streamindex]['bitrate']) || $thisfile_riff_audio[$streamindex]['bitrate'] == 0) {
$info['error'][] = 'Corrupt RIFF file: bitrate_audio == zero';
return false;
}
$thisfile_riff_raw['fmt '] = $thisfile_riff_audio[$streamindex]['raw'];
unset($thisfile_riff_audio[$streamindex]['raw']);
$thisfile_audio['streams'][$streamindex] = $thisfile_riff_audio[$streamindex];
$thisfile_audio = Helper::array_merge_noclobber($thisfile_audio, $thisfile_riff_audio[$streamindex]);
if (substr($thisfile_audio['codec'], 0, strlen('unknown: 0x')) == 'unknown: 0x') {
$info['warning'][] = 'Audio codec = ' . $thisfile_audio['codec'];
}
$thisfile_audio['bitrate'] = $thisfile_riff_audio[$streamindex]['bitrate'];
$info['playtime_seconds'] = (double) (($info['avdataend'] - $info['avdataoffset']) * 8 / $thisfile_audio['bitrate']);
$thisfile_audio['lossless'] = false;
if (isset($thisfile_riff_WAVE['data'][0]['offset']) && isset($thisfile_riff_raw['fmt ']['wFormatTag'])) {
switch ($thisfile_riff_raw['fmt ']['wFormatTag']) {
case 0x1:
// PCM
$thisfile_audio['lossless'] = true;
break;
case 0x2000:
// AC-3
$thisfile_audio_dataformat = 'ac3';
break;
default:
// do nothing
break;
}
}
$thisfile_audio['streams'][$streamindex]['wformattag'] = $thisfile_audio['wformattag'];
$thisfile_audio['streams'][$streamindex]['bitrate_mode'] = $thisfile_audio['bitrate_mode'];
$thisfile_audio['streams'][$streamindex]['lossless'] = $thisfile_audio['lossless'];
$thisfile_audio['streams'][$streamindex]['dataformat'] = $thisfile_audio_dataformat;
}
if (isset($thisfile_riff_WAVE['rgad'][0]['data'])) {
// shortcuts
$rgadData =& $thisfile_riff_WAVE['rgad'][0]['data'];
$thisfile_riff_raw['rgad'] = array('track' => array(), 'album' => array());
$thisfile_riff_raw_rgad =& $thisfile_riff_raw['rgad'];
$thisfile_riff_raw_rgad_track =& $thisfile_riff_raw_rgad['track'];
$thisfile_riff_raw_rgad_album =& $thisfile_riff_raw_rgad['album'];
$thisfile_riff_raw_rgad['fPeakAmplitude'] = Helper::LittleEndian2Float(substr($rgadData, 0, 4));
$thisfile_riff_raw_rgad['nRadioRgAdjust'] = $this->EitherEndian2Int(substr($rgadData, 4, 2));
$thisfile_riff_raw_rgad['nAudiophileRgAdjust'] = $this->EitherEndian2Int(substr($rgadData, 6, 2));
$nRadioRgAdjustBitstring = str_pad(Helper::Dec2Bin($thisfile_riff_raw_rgad['nRadioRgAdjust']), 16, '0', STR_PAD_LEFT);
$nAudiophileRgAdjustBitstring = str_pad(Helper::Dec2Bin($thisfile_riff_raw_rgad['nAudiophileRgAdjust']), 16, '0', STR_PAD_LEFT);
$thisfile_riff_raw_rgad_track['name'] = Helper::Bin2Dec(substr($nRadioRgAdjustBitstring, 0, 3));
$thisfile_riff_raw_rgad_track['originator'] = Helper::Bin2Dec(substr($nRadioRgAdjustBitstring, 3, 3));
$thisfile_riff_raw_rgad_track['signbit'] = Helper::Bin2Dec(substr($nRadioRgAdjustBitstring, 6, 1));
$thisfile_riff_raw_rgad_track['adjustment'] = Helper::Bin2Dec(substr($nRadioRgAdjustBitstring, 7, 9));
$thisfile_riff_raw_rgad_album['name'] = Helper::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 0, 3));
$thisfile_riff_raw_rgad_album['originator'] = Helper::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 3, 3));
$thisfile_riff_raw_rgad_album['signbit'] = Helper::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 6, 1));
$thisfile_riff_raw_rgad_album['adjustment'] = Helper::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 7, 9));
$thisfile_riff['rgad']['peakamplitude'] = $thisfile_riff_raw_rgad['fPeakAmplitude'];
if ($thisfile_riff_raw_rgad_track['name'] != 0 && $thisfile_riff_raw_rgad_track['originator'] != 0) {
$thisfile_riff['rgad']['track']['name'] = Helper::RGADnameLookup($thisfile_riff_raw_rgad_track['name']);
$thisfile_riff['rgad']['track']['originator'] = Helper::RGADoriginatorLookup($thisfile_riff_raw_rgad_track['originator']);
$thisfile_riff['rgad']['track']['adjustment'] = Helper::RGADadjustmentLookup($thisfile_riff_raw_rgad_track['adjustment'], $thisfile_riff_raw_rgad_track['signbit']);
}
if ($thisfile_riff_raw_rgad_album['name'] != 0 && $thisfile_riff_raw_rgad_album['originator'] != 0) {
$thisfile_riff['rgad']['album']['name'] = Helper::RGADnameLookup($thisfile_riff_raw_rgad_album['name']);
$thisfile_riff['rgad']['album']['originator'] = Helper::RGADoriginatorLookup($thisfile_riff_raw_rgad_album['originator']);
$thisfile_riff['rgad']['album']['adjustment'] = Helper::RGADadjustmentLookup($thisfile_riff_raw_rgad_album['adjustment'], $thisfile_riff_raw_rgad_album['signbit']);
}
}
if (isset($thisfile_riff_WAVE['fact'][0]['data'])) {
$thisfile_riff_raw['fact']['NumberOfSamples'] = $this->EitherEndian2Int(substr($thisfile_riff_WAVE['fact'][0]['data'], 0, 4));
// This should be a good way of calculating exact playtime,
// but some sample files have had incorrect number of samples,
// so cannot use this method
// if (!empty($thisfile_riff_raw['fmt ']['nSamplesPerSec'])) {
// $info['playtime_seconds'] = (float) $thisfile_riff_raw['fact']['NumberOfSamples'] / $thisfile_riff_raw['fmt ']['nSamplesPerSec'];
// }
}
if (!empty($thisfile_riff_raw['fmt ']['nAvgBytesPerSec'])) {
$thisfile_audio['bitrate'] = Helper::CastAsInt($thisfile_riff_raw['fmt ']['nAvgBytesPerSec'] * 8);
}
if (isset($thisfile_riff_WAVE['bext'][0]['data'])) {
// shortcut
$thisfile_riff_WAVE_bext_0 =& $thisfile_riff_WAVE['bext'][0];
$thisfile_riff_WAVE_bext_0['title'] = trim(substr($thisfile_riff_WAVE_bext_0['data'], 0, 256));
$thisfile_riff_WAVE_bext_0['author'] = trim(substr($thisfile_riff_WAVE_bext_0['data'], 256, 32));
$thisfile_riff_WAVE_bext_0['reference'] = trim(substr($thisfile_riff_WAVE_bext_0['data'], 288, 32));
$thisfile_riff_WAVE_bext_0['origin_date'] = substr($thisfile_riff_WAVE_bext_0['data'], 320, 10);
$thisfile_riff_WAVE_bext_0['origin_time'] = substr($thisfile_riff_WAVE_bext_0['data'], 330, 8);
$thisfile_riff_WAVE_bext_0['time_reference'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_bext_0['data'], 338, 8));
$thisfile_riff_WAVE_bext_0['bwf_version'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_bext_0['data'], 346, 1));
$thisfile_riff_WAVE_bext_0['reserved'] = substr($thisfile_riff_WAVE_bext_0['data'], 347, 254);
$thisfile_riff_WAVE_bext_0['coding_history'] = explode("\r\n", trim(substr($thisfile_riff_WAVE_bext_0['data'], 601)));
if (preg_match('#^([0-9]{4}).([0-9]{2}).([0-9]{2})$#', $thisfile_riff_WAVE_bext_0['origin_date'], $matches_bext_date)) {
if (preg_match('#^([0-9]{2}).([0-9]{2}).([0-9]{2})$#', $thisfile_riff_WAVE_bext_0['origin_time'], $matches_bext_time)) {
list($dummy, $bext_timestamp['year'], $bext_timestamp['month'], $bext_timestamp['day']) = $matches_bext_date;
list($dummy, $bext_timestamp['hour'], $bext_timestamp['minute'], $bext_timestamp['second']) = $matches_bext_time;
$thisfile_riff_WAVE_bext_0['origin_date_unix'] = gmmktime($bext_timestamp['hour'], $bext_timestamp['minute'], $bext_timestamp['second'], $bext_timestamp['month'], $bext_timestamp['day'], $bext_timestamp['year']);
} else {
$info['warning'][] = 'RIFF.WAVE.BEXT.origin_time is invalid';
}
} else {
$info['warning'][] = 'RIFF.WAVE.BEXT.origin_date is invalid';
}
$thisfile_riff['comments']['author'][] = $thisfile_riff_WAVE_bext_0['author'];
$thisfile_riff['comments']['title'][] = $thisfile_riff_WAVE_bext_0['title'];
}
if (isset($thisfile_riff_WAVE['MEXT'][0]['data'])) {
// shortcut
$thisfile_riff_WAVE_MEXT_0 =& $thisfile_riff_WAVE['MEXT'][0];
$thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 0, 2));
$thisfile_riff_WAVE_MEXT_0['flags']['homogenous'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x1);
if ($thisfile_riff_WAVE_MEXT_0['flags']['homogenous']) {
$thisfile_riff_WAVE_MEXT_0['flags']['padding'] = $thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x2 ? false : true;
$thisfile_riff_WAVE_MEXT_0['flags']['22_or_44'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x4);
$thisfile_riff_WAVE_MEXT_0['flags']['free_format'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x8);
$thisfile_riff_WAVE_MEXT_0['nominal_frame_size'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 2, 2));
}
$thisfile_riff_WAVE_MEXT_0['anciliary_data_length'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 6, 2));
$thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 8, 2));
$thisfile_riff_WAVE_MEXT_0['flags']['anciliary_data_left'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] & 0x1);
$thisfile_riff_WAVE_MEXT_0['flags']['anciliary_data_free'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] & 0x2);
$thisfile_riff_WAVE_MEXT_0['flags']['anciliary_data_right'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] & 0x4);
}
if (isset($thisfile_riff_WAVE['cart'][0]['data'])) {
// shortcut
$thisfile_riff_WAVE_cart_0 =& $thisfile_riff_WAVE['cart'][0];
$thisfile_riff_WAVE_cart_0['version'] = substr($thisfile_riff_WAVE_cart_0['data'], 0, 4);
$thisfile_riff_WAVE_cart_0['title'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 4, 64));
$thisfile_riff_WAVE_cart_0['artist'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 68, 64));
$thisfile_riff_WAVE_cart_0['cut_id'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 132, 64));
$thisfile_riff_WAVE_cart_0['client_id'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 196, 64));
$thisfile_riff_WAVE_cart_0['category'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 260, 64));
$thisfile_riff_WAVE_cart_0['classification'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 324, 64));
$thisfile_riff_WAVE_cart_0['out_cue'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 388, 64));
$thisfile_riff_WAVE_cart_0['start_date'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 452, 10));
$thisfile_riff_WAVE_cart_0['start_time'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 462, 8));
$thisfile_riff_WAVE_cart_0['end_date'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 470, 10));
$thisfile_riff_WAVE_cart_0['end_time'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 480, 8));
$thisfile_riff_WAVE_cart_0['producer_app_id'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 488, 64));
$thisfile_riff_WAVE_cart_0['producer_app_version'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 552, 64));
$thisfile_riff_WAVE_cart_0['user_defined_text'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 616, 64));
$thisfile_riff_WAVE_cart_0['zero_db_reference'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_cart_0['data'], 680, 4), true);
for ($i = 0; $i < 8; ++$i) {
$thisfile_riff_WAVE_cart_0['post_time'][$i]['usage_fourcc'] = substr($thisfile_riff_WAVE_cart_0['data'], 684 + $i * 8, 4);
$thisfile_riff_WAVE_cart_0['post_time'][$i]['timer_value'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE_cart_0['data'], 684 + $i * 8 + 4, 4));
}
$thisfile_riff_WAVE_cart_0['url'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 748, 1024));
$thisfile_riff_WAVE_cart_0['tag_text'] = explode("\r\n", trim(substr($thisfile_riff_WAVE_cart_0['data'], 1772)));
$thisfile_riff['comments']['artist'][] = $thisfile_riff_WAVE_cart_0['artist'];
$thisfile_riff['comments']['title'][] = $thisfile_riff_WAVE_cart_0['title'];
}
if (isset($thisfile_riff_WAVE['SNDM'][0]['data'])) {
// SoundMiner metadata
// shortcuts
$thisfile_riff_WAVE_SNDM_0 =& $thisfile_riff_WAVE['SNDM'][0];
$thisfile_riff_WAVE_SNDM_0_data =& $thisfile_riff_WAVE_SNDM_0['data'];
$SNDM_startoffset = 0;
$SNDM_endoffset = $thisfile_riff_WAVE_SNDM_0['size'];
while ($SNDM_startoffset < $SNDM_endoffset) {
$SNDM_thisTagOffset = 0;
$SNDM_thisTagSize = Helper::BigEndian2Int(substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 4));
$SNDM_thisTagOffset += 4;
$SNDM_thisTagKey = substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 4);
$SNDM_thisTagOffset += 4;
$SNDM_thisTagDataSize = Helper::BigEndian2Int(substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 2));
$SNDM_thisTagOffset += 2;
$SNDM_thisTagDataFlags = Helper::BigEndian2Int(substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 2));
$SNDM_thisTagOffset += 2;
$SNDM_thisTagDataText = substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, $SNDM_thisTagDataSize);
$SNDM_thisTagOffset += $SNDM_thisTagDataSize;
if ($SNDM_thisTagSize != 4 + 4 + 2 + 2 + $SNDM_thisTagDataSize) {
$info['warning'][] = 'RIFF.WAVE.SNDM.data contains tag not expected length (expected: ' . $SNDM_thisTagSize . ', found: ' . (4 + 4 + 2 + 2 + $SNDM_thisTagDataSize) . ') at offset ' . $SNDM_startoffset . ' (file offset ' . ($thisfile_riff_WAVE_SNDM_0['offset'] + $SNDM_startoffset) . ')';
break;
} elseif ($SNDM_thisTagSize <= 0) {
$info['warning'][] = 'RIFF.WAVE.SNDM.data contains zero-size tag at offset ' . $SNDM_startoffset . ' (file offset ' . ($thisfile_riff_WAVE_SNDM_0['offset'] + $SNDM_startoffset) . ')';
break;
}
$SNDM_startoffset += $SNDM_thisTagSize;
$thisfile_riff_WAVE_SNDM_0['parsed_raw'][$SNDM_thisTagKey] = $SNDM_thisTagDataText;
if ($parsedkey = $this->RIFFwaveSNDMtagLookup($SNDM_thisTagKey)) {
$thisfile_riff_WAVE_SNDM_0['parsed'][$parsedkey] = $SNDM_thisTagDataText;
} else {
$info['warning'][] = 'RIFF.WAVE.SNDM contains unknown tag "' . $SNDM_thisTagKey . '" at offset ' . $SNDM_startoffset . ' (file offset ' . ($thisfile_riff_WAVE_SNDM_0['offset'] + $SNDM_startoffset) . ')';
}
}
$tagmapping = array('tracktitle' => 'title', 'category' => 'genre', 'cdtitle' => 'album', 'tracktitle' => 'title');
foreach ($tagmapping as $fromkey => $tokey) {
if (isset($thisfile_riff_WAVE_SNDM_0['parsed'][$fromkey])) {
$thisfile_riff['comments'][$tokey][] = $thisfile_riff_WAVE_SNDM_0['parsed'][$fromkey];
}
}
}
if (isset($thisfile_riff_WAVE['iXML'][0]['data'])) {
// requires functions simplexml_load_string and get_object_vars
if ($parsedXML = Helper::XML2array($thisfile_riff_WAVE['iXML'][0]['data'])) {
$thisfile_riff_WAVE['iXML'][0]['parsed'] = $parsedXML;
if (isset($parsedXML['SPEED']['MASTER_SPEED'])) {
@(list($numerator, $denominator) = explode('/', $parsedXML['SPEED']['MASTER_SPEED']));
$thisfile_riff_WAVE['iXML'][0]['master_speed'] = $numerator / ($denominator ? $denominator : 1000);
}
if (isset($parsedXML['SPEED']['TIMECODE_RATE'])) {
@(list($numerator, $denominator) = explode('/', $parsedXML['SPEED']['TIMECODE_RATE']));
$thisfile_riff_WAVE['iXML'][0]['timecode_rate'] = $numerator / ($denominator ? $denominator : 1000);
}
if (isset($parsedXML['SPEED']['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_LO']) && !empty($parsedXML['SPEED']['TIMESTAMP_SAMPLE_RATE']) && !empty($thisfile_riff_WAVE['iXML'][0]['timecode_rate'])) {
$samples_since_midnight = floatval(ltrim($parsedXML['SPEED']['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_HI'] . $parsedXML['SPEED']['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_LO'], '0'));
$thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] = $samples_since_midnight / $parsedXML['SPEED']['TIMESTAMP_SAMPLE_RATE'];
$h = floor($thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] / 3600);
$m = floor(($thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] - $h * 3600) / 60);
$s = floor($thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] - $h * 3600 - $m * 60);
$f = ($thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] - $h * 3600 - $m * 60 - $s) * $thisfile_riff_WAVE['iXML'][0]['timecode_rate'];
$thisfile_riff_WAVE['iXML'][0]['timecode_string'] = sprintf('%02d:%02d:%02d:%05.2f', $h, $m, $s, $f);
$thisfile_riff_WAVE['iXML'][0]['timecode_string_round'] = sprintf('%02d:%02d:%02d:%02d', $h, $m, $s, round($f));
}
unset($parsedXML);
}
}
if (!isset($thisfile_audio['bitrate']) && isset($thisfile_riff_audio[$streamindex]['bitrate'])) {
$thisfile_audio['bitrate'] = $thisfile_riff_audio[$streamindex]['bitrate'];
$info['playtime_seconds'] = (double) (($info['avdataend'] - $info['avdataoffset']) * 8 / $thisfile_audio['bitrate']);
}
if (!empty($info['wavpack'])) {
$thisfile_audio_dataformat = 'wavpack';
$thisfile_audio['bitrate_mode'] = 'vbr';
$thisfile_audio['encoder'] = 'WavPack v' . $info['wavpack']['version'];
// Reset to the way it was - RIFF parsing will have messed this up
$info['avdataend'] = $Original['avdataend'];
$thisfile_audio['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
fseek($this->getid3->fp, $info['avdataoffset'] - 44, SEEK_SET);
$RIFFdata = fread($this->getid3->fp, 44);
$OrignalRIFFheaderSize = Helper::LittleEndian2Int(substr($RIFFdata, 4, 4)) + 8;
$OrignalRIFFdataSize = Helper::LittleEndian2Int(substr($RIFFdata, 40, 4)) + 44;
if ($OrignalRIFFheaderSize > $OrignalRIFFdataSize) {
$info['avdataend'] -= $OrignalRIFFheaderSize - $OrignalRIFFdataSize;
fseek($this->getid3->fp, $info['avdataend'], SEEK_SET);
$RIFFdata .= fread($this->getid3->fp, $OrignalRIFFheaderSize - $OrignalRIFFdataSize);
}
// move the data chunk after all other chunks (if any)
// so that the RIFF parser doesn't see EOF when trying
// to skip over the data chunk
$RIFFdata = substr($RIFFdata, 0, 36) . substr($RIFFdata, 44) . substr($RIFFdata, 36, 8);
$getid3_riff = new self($this->getid3);
$getid3_riff->ParseRIFFdata($RIFFdata);
unset($getid3_riff);
}
if (isset($thisfile_riff_raw['fmt ']['wFormatTag'])) {
switch ($thisfile_riff_raw['fmt ']['wFormatTag']) {
case 0x1:
// PCM
if (!empty($info['ac3'])) {
// Dolby Digital WAV files masquerade as PCM-WAV, but they're not
$thisfile_audio['wformattag'] = 0x2000;
$thisfile_audio['codec'] = $this->RIFFwFormatTagLookup($thisfile_audio['wformattag']);
$thisfile_audio['lossless'] = false;
$thisfile_audio['bitrate'] = $info['ac3']['bitrate'];
$thisfile_audio['sample_rate'] = $info['ac3']['sample_rate'];
}
break;
case 0x8ae:
// ClearJump LiteWave
$thisfile_audio['bitrate_mode'] = 'vbr';
$thisfile_audio_dataformat = 'litewave';
//typedef struct tagSLwFormat {
// WORD m_wCompFormat; // low byte defines compression method, high byte is compression flags
// DWORD m_dwScale; // scale factor for lossy compression
// DWORD m_dwBlockSize; // number of samples in encoded blocks
// WORD m_wQuality; // alias for the scale factor
// WORD m_wMarkDistance; // distance between marks in bytes
// WORD m_wReserved;
//
// //following paramters are ignored if CF_FILESRC is not set
// DWORD m_dwOrgSize; // original file size in bytes
// WORD m_bFactExists; // indicates if 'fact' chunk exists in the original file
// DWORD m_dwRiffChunkSize; // riff chunk size in the original file
//
// PCMWAVEFORMAT m_OrgWf; // original wave format
// }SLwFormat, *PSLwFormat;
// shortcut
$thisfile_riff['litewave']['raw'] = array();
$thisfile_riff_litewave =& $thisfile_riff['litewave'];
$thisfile_riff_litewave_raw =& $thisfile_riff_litewave['raw'];
$thisfile_riff_litewave_raw['compression_method'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 18, 1));
$thisfile_riff_litewave_raw['compression_flags'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 19, 1));
$thisfile_riff_litewave_raw['m_dwScale'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 20, 4));
$thisfile_riff_litewave_raw['m_dwBlockSize'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 24, 4));
$thisfile_riff_litewave_raw['m_wQuality'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 28, 2));
$thisfile_riff_litewave_raw['m_wMarkDistance'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 30, 2));
$thisfile_riff_litewave_raw['m_wReserved'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 32, 2));
$thisfile_riff_litewave_raw['m_dwOrgSize'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 34, 4));
$thisfile_riff_litewave_raw['m_bFactExists'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 38, 2));
$thisfile_riff_litewave_raw['m_dwRiffChunkSize'] = Helper::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], 40, 4));
//$thisfile_riff_litewave['quality_factor'] = intval(round((2000 - $thisfile_riff_litewave_raw['m_dwScale']) / 20));
$thisfile_riff_litewave['quality_factor'] = $thisfile_riff_litewave_raw['m_wQuality'];
$thisfile_riff_litewave['flags']['raw_source'] = $thisfile_riff_litewave_raw['compression_flags'] & 0x1 ? false : true;
$thisfile_riff_litewave['flags']['vbr_blocksize'] = $thisfile_riff_litewave_raw['compression_flags'] & 0x2 ? false : true;
$thisfile_riff_litewave['flags']['seekpoints'] = (bool) ($thisfile_riff_litewave_raw['compression_flags'] & 0x4);
$thisfile_audio['lossless'] = $thisfile_riff_litewave_raw['m_wQuality'] == 100 ? true : false;
$thisfile_audio['encoder_options'] = '-q' . $thisfile_riff_litewave['quality_factor'];
break;
default:
break;
}
}
if ($info['avdataend'] > $info['filesize']) {
switch (!empty($thisfile_audio_dataformat) ? $thisfile_audio_dataformat : '') {
case 'wavpack':
// WavPack
// WavPack
case 'lpac':
// LPAC
// LPAC
case 'ofr':
// OptimFROG
// OptimFROG
case 'ofs':
// OptimFROG DualStream
// lossless compressed audio formats that keep original RIFF headers - skip warning
break;
case 'litewave':
if ($info['avdataend'] - $info['filesize'] == 1) {
// LiteWave appears to incorrectly *not* pad actual output file
// to nearest WORD boundary so may appear to be short by one
// byte, in which case - skip warning
} else {
// Short by more than one byte, throw warning
$info['warning'][] = 'Probably truncated file - expecting ' . $thisfile_riff[$RIFFsubtype]['data'][0]['size'] . ' bytes of data, only found ' . ($info['filesize'] - $info['avdataoffset']) . ' (short by ' . ($thisfile_riff[$RIFFsubtype]['data'][0]['size'] - ($info['filesize'] - $info['avdataoffset'])) . ' bytes)';
$info['avdataend'] = $info['filesize'];
}
break;
default:
if ($info['avdataend'] - $info['filesize'] == 1 && $thisfile_riff[$RIFFsubtype]['data'][0]['size'] % 2 == 0 && ($info['filesize'] - $info['avdataoffset']) % 2 == 1) {
// output file appears to be incorrectly *not* padded to nearest WORD boundary
// Output less severe warning
$info['warning'][] = 'File should probably be padded to nearest WORD boundary, but it is not (expecting ' . $thisfile_riff[$RIFFsubtype]['data'][0]['size'] . ' bytes of data, only found ' . ($info['filesize'] - $info['avdataoffset']) . ' therefore short by ' . ($thisfile_riff[$RIFFsubtype]['data'][0]['size'] - ($info['filesize'] - $info['avdataoffset'])) . ' bytes)';
$info['avdataend'] = $info['filesize'];
} else {
// Short by more than one byte, throw warning
$info['warning'][] = 'Probably truncated file - expecting ' . $thisfile_riff[$RIFFsubtype]['data'][0]['size'] . ' bytes of data, only found ' . ($info['filesize'] - $info['avdataoffset']) . ' (short by ' . ($thisfile_riff[$RIFFsubtype]['data'][0]['size'] - ($info['filesize'] - $info['avdataoffset'])) . ' bytes)';
$info['avdataend'] = $info['filesize'];
}
break;
}
}
if (!empty($info['mpeg']['audio']['LAME']['audio_bytes'])) {
if ($info['avdataend'] - $info['avdataoffset'] - $info['mpeg']['audio']['LAME']['audio_bytes'] == 1) {
--$info['avdataend'];
$info['warning'][] = 'Extra null byte at end of MP3 data assumed to be RIFF padding and therefore ignored';
}
}
if (isset($thisfile_audio_dataformat) && $thisfile_audio_dataformat == 'ac3') {
unset($thisfile_audio['bits_per_sample']);
if (!empty($info['ac3']['bitrate']) && $info['ac3']['bitrate'] != $thisfile_audio['bitrate']) {
$thisfile_audio['bitrate'] = $info['ac3']['bitrate'];
}
}
break;
case 'AVI ':
$thisfile_video['bitrate_mode'] = 'vbr';
// maybe not, but probably
$thisfile_video['dataformat'] = 'avi';
$info['mime_type'] = 'video/avi';
if (isset($thisfile_riff[$RIFFsubtype]['movi']['offset'])) {
$info['avdataoffset'] = $thisfile_riff[$RIFFsubtype]['movi']['offset'] + 8;
if (isset($thisfile_riff['AVIX'])) {
$info['avdataend'] = $thisfile_riff['AVIX'][count($thisfile_riff['AVIX']) - 1]['chunks']['movi']['offset'] + $thisfile_riff['AVIX'][count($thisfile_riff['AVIX']) - 1]['chunks']['movi']['size'];
} else {
$info['avdataend'] = $thisfile_riff['AVI ']['movi']['offset'] + $thisfile_riff['AVI ']['movi']['size'];
}
if ($info['avdataend'] > $info['filesize']) {
$info['warning'][] = 'Probably truncated file - expecting ' . ($info['avdataend'] - $info['avdataoffset']) . ' bytes of data, only found ' . ($info['filesize'] - $info['avdataoffset']) . ' (short by ' . ($info['avdataend'] - $info['filesize']) . ' bytes)';
$info['avdataend'] = $info['filesize'];
}
}
if (isset($thisfile_riff['AVI ']['hdrl']['strl']['indx'])) {
//$bIndexType = array(
// 0x00 => 'AVI_INDEX_OF_INDEXES',
// 0x01 => 'AVI_INDEX_OF_CHUNKS',
// 0x80 => 'AVI_INDEX_IS_DATA',
//);
//$bIndexSubtype = array(
// 0x01 => array(
// 0x01 => 'AVI_INDEX_2FIELD',
// ),
//);
foreach ($thisfile_riff['AVI ']['hdrl']['strl']['indx'] as $streamnumber => $steamdataarray) {
$thisfile_riff_avi_hdrl_strl_indx_stream_data =& $thisfile_riff['AVI ']['hdrl']['strl']['indx'][$streamnumber]['data'];
$thisfile_riff_raw['indx'][$streamnumber]['wLongsPerEntry'] = $this->EitherEndian2Int(substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 0, 2));
$thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType'] = $this->EitherEndian2Int(substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 2, 1));
$thisfile_riff_raw['indx'][$streamnumber]['bIndexType'] = $this->EitherEndian2Int(substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 3, 1));
$thisfile_riff_raw['indx'][$streamnumber]['nEntriesInUse'] = $this->EitherEndian2Int(substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 4, 4));
$thisfile_riff_raw['indx'][$streamnumber]['dwChunkId'] = substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 8, 4);
$thisfile_riff_raw['indx'][$streamnumber]['dwReserved'] = $this->EitherEndian2Int(substr($thisfile_riff_avi_hdrl_strl_indx_stream_data, 12, 4));
//$thisfile_riff_raw['indx'][$streamnumber]['bIndexType_name'] = $bIndexType[$thisfile_riff_raw['indx'][$streamnumber]['bIndexType']];
//$thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType_name'] = $bIndexSubtype[$thisfile_riff_raw['indx'][$streamnumber]['bIndexType']][$thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType']];
unset($thisfile_riff_avi_hdrl_strl_indx_stream_data);
}
}
if (isset($thisfile_riff['AVI ']['hdrl']['avih'][$streamindex]['data'])) {
$avihData = $thisfile_riff['AVI ']['hdrl']['avih'][$streamindex]['data'];
// shortcut
$thisfile_riff_raw['avih'] = array();
$thisfile_riff_raw_avih =& $thisfile_riff_raw['avih'];
$thisfile_riff_raw_avih['dwMicroSecPerFrame'] = $this->EitherEndian2Int(substr($avihData, 0, 4));
// frame display rate (or 0L)
if ($thisfile_riff_raw_avih['dwMicroSecPerFrame'] == 0) {
$info['error'][] = 'Corrupt RIFF file: avih.dwMicroSecPerFrame == zero';
return false;
}
$thisfile_riff_raw_avih['dwMaxBytesPerSec'] = $this->EitherEndian2Int(substr($avihData, 4, 4));
// max. transfer rate
$thisfile_riff_raw_avih['dwPaddingGranularity'] = $this->EitherEndian2Int(substr($avihData, 8, 4));
// pad to multiples of this size; normally 2K.
$thisfile_riff_raw_avih['dwFlags'] = $this->EitherEndian2Int(substr($avihData, 12, 4));
// the ever-present flags
$thisfile_riff_raw_avih['dwTotalFrames'] = $this->EitherEndian2Int(substr($avihData, 16, 4));
// # frames in file
$thisfile_riff_raw_avih['dwInitialFrames'] = $this->EitherEndian2Int(substr($avihData, 20, 4));
$thisfile_riff_raw_avih['dwStreams'] = $this->EitherEndian2Int(substr($avihData, 24, 4));
$thisfile_riff_raw_avih['dwSuggestedBufferSize'] = $this->EitherEndian2Int(substr($avihData, 28, 4));
$thisfile_riff_raw_avih['dwWidth'] = $this->EitherEndian2Int(substr($avihData, 32, 4));
$thisfile_riff_raw_avih['dwHeight'] = $this->EitherEndian2Int(substr($avihData, 36, 4));
$thisfile_riff_raw_avih['dwScale'] = $this->EitherEndian2Int(substr($avihData, 40, 4));
$thisfile_riff_raw_avih['dwRate'] = $this->EitherEndian2Int(substr($avihData, 44, 4));
$thisfile_riff_raw_avih['dwStart'] = $this->EitherEndian2Int(substr($avihData, 48, 4));
$thisfile_riff_raw_avih['dwLength'] = $this->EitherEndian2Int(substr($avihData, 52, 4));
$thisfile_riff_raw_avih['flags']['hasindex'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x10);
$thisfile_riff_raw_avih['flags']['mustuseindex'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x20);
$thisfile_riff_raw_avih['flags']['interleaved'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x100);
$thisfile_riff_raw_avih['flags']['trustcktype'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x800);
$thisfile_riff_raw_avih['flags']['capturedfile'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x10000);
$thisfile_riff_raw_avih['flags']['copyrighted'] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & 0x20010);
// shortcut
$thisfile_riff_video[$streamindex] = array();
$thisfile_riff_video_current =& $thisfile_riff_video[$streamindex];
if ($thisfile_riff_raw_avih['dwWidth'] > 0) {
$thisfile_riff_video_current['frame_width'] = $thisfile_riff_raw_avih['dwWidth'];
$thisfile_video['resolution_x'] = $thisfile_riff_video_current['frame_width'];
}
if ($thisfile_riff_raw_avih['dwHeight'] > 0) {
$thisfile_riff_video_current['frame_height'] = $thisfile_riff_raw_avih['dwHeight'];
$thisfile_video['resolution_y'] = $thisfile_riff_video_current['frame_height'];
}
if ($thisfile_riff_raw_avih['dwTotalFrames'] > 0) {
$thisfile_riff_video_current['total_frames'] = $thisfile_riff_raw_avih['dwTotalFrames'];
$thisfile_video['total_frames'] = $thisfile_riff_video_current['total_frames'];
}
$thisfile_riff_video_current['frame_rate'] = round(1000000 / $thisfile_riff_raw_avih['dwMicroSecPerFrame'], 3);
$thisfile_video['frame_rate'] = $thisfile_riff_video_current['frame_rate'];
}
if (isset($thisfile_riff['AVI ']['hdrl']['strl']['strh'][0]['data'])) {
if (is_array($thisfile_riff['AVI ']['hdrl']['strl']['strh'])) {
for ($i = 0; $i < count($thisfile_riff['AVI ']['hdrl']['strl']['strh']); ++$i) {
if (isset($thisfile_riff['AVI ']['hdrl']['strl']['strh'][$i]['data'])) {
$strhData = $thisfile_riff['AVI ']['hdrl']['strl']['strh'][$i]['data'];
$strhfccType = substr($strhData, 0, 4);
if (isset($thisfile_riff['AVI ']['hdrl']['strl']['strf'][$i]['data'])) {
$strfData = $thisfile_riff['AVI ']['hdrl']['strl']['strf'][$i]['data'];
// shortcut
$thisfile_riff_raw_strf_strhfccType_streamindex =& $thisfile_riff_raw['strf'][$strhfccType][$streamindex];
switch ($strhfccType) {
case 'auds':
$thisfile_audio['bitrate_mode'] = 'cbr';
$thisfile_audio_dataformat = 'wav';
if (isset($thisfile_riff_audio) && is_array($thisfile_riff_audio)) {
$streamindex = count($thisfile_riff_audio);
}
$thisfile_riff_audio[$streamindex] = self::RIFFparseWAVEFORMATex($strfData);
$thisfile_audio['wformattag'] = $thisfile_riff_audio[$streamindex]['raw']['wFormatTag'];
// shortcut
$thisfile_audio['streams'][$streamindex] = $thisfile_riff_audio[$streamindex];
$thisfile_audio_streams_currentstream =& $thisfile_audio['streams'][$streamindex];
if ($thisfile_audio_streams_currentstream['bits_per_sample'] == 0) {
unset($thisfile_audio_streams_currentstream['bits_per_sample']);
}
$thisfile_audio_streams_currentstream['wformattag'] = $thisfile_audio_streams_currentstream['raw']['wFormatTag'];
unset($thisfile_audio_streams_currentstream['raw']);
// shortcut
$thisfile_riff_raw['strf'][$strhfccType][$streamindex] = $thisfile_riff_audio[$streamindex]['raw'];
unset($thisfile_riff_audio[$streamindex]['raw']);
$thisfile_audio = Helper::array_merge_noclobber($thisfile_audio, $thisfile_riff_audio[$streamindex]);
$thisfile_audio['lossless'] = false;
switch ($thisfile_riff_raw_strf_strhfccType_streamindex['wFormatTag']) {
case 0x1:
// PCM
$thisfile_audio_dataformat = 'wav';
$thisfile_audio['lossless'] = true;
break;
case 0x50:
// MPEG Layer 2 or Layer 1
$thisfile_audio_dataformat = 'mp2';
// Assume Layer-2
break;
case 0x55:
// MPEG Layer 3
$thisfile_audio_dataformat = 'mp3';
break;
case 0xff:
// AAC
$thisfile_audio_dataformat = 'aac';
break;
case 0x161:
// Windows Media v7 / v8 / v9
// Windows Media v7 / v8 / v9
case 0x162:
// Windows Media Professional v9
// Windows Media Professional v9
case 0x163:
// Windows Media Lossess v9
$thisfile_audio_dataformat = 'wma';
break;
case 0x2000:
// AC-3
$thisfile_audio_dataformat = 'ac3';
break;
case 0x2001:
// DTS
$thisfile_audio_dataformat = 'dts';
break;
default:
$thisfile_audio_dataformat = 'wav';
break;
}
$thisfile_audio_streams_currentstream['dataformat'] = $thisfile_audio_dataformat;
$thisfile_audio_streams_currentstream['lossless'] = $thisfile_audio['lossless'];
$thisfile_audio_streams_currentstream['bitrate_mode'] = $thisfile_audio['bitrate_mode'];
break;
case 'iavs':
case 'vids':
// shortcut
$thisfile_riff_raw['strh'][$i] = array();
$thisfile_riff_raw_strh_current =& $thisfile_riff_raw['strh'][$i];
$thisfile_riff_raw_strh_current['fccType'] = substr($strhData, 0, 4);
// same as $strhfccType;
$thisfile_riff_raw_strh_current['fccHandler'] = substr($strhData, 4, 4);
$thisfile_riff_raw_strh_current['dwFlags'] = $this->EitherEndian2Int(substr($strhData, 8, 4));
// Contains AVITF_* flags
$thisfile_riff_raw_strh_current['wPriority'] = $this->EitherEndian2Int(substr($strhData, 12, 2));
$thisfile_riff_raw_strh_current['wLanguage'] = $this->EitherEndian2Int(substr($strhData, 14, 2));
$thisfile_riff_raw_strh_current['dwInitialFrames'] = $this->EitherEndian2Int(substr($strhData, 16, 4));
$thisfile_riff_raw_strh_current['dwScale'] = $this->EitherEndian2Int(substr($strhData, 20, 4));
$thisfile_riff_raw_strh_current['dwRate'] = $this->EitherEndian2Int(substr($strhData, 24, 4));
$thisfile_riff_raw_strh_current['dwStart'] = $this->EitherEndian2Int(substr($strhData, 28, 4));
$thisfile_riff_raw_strh_current['dwLength'] = $this->EitherEndian2Int(substr($strhData, 32, 4));
$thisfile_riff_raw_strh_current['dwSuggestedBufferSize'] = $this->EitherEndian2Int(substr($strhData, 36, 4));
$thisfile_riff_raw_strh_current['dwQuality'] = $this->EitherEndian2Int(substr($strhData, 40, 4));
$thisfile_riff_raw_strh_current['dwSampleSize'] = $this->EitherEndian2Int(substr($strhData, 44, 4));
$thisfile_riff_raw_strh_current['rcFrame'] = $this->EitherEndian2Int(substr($strhData, 48, 4));
$thisfile_riff_video_current['codec'] = self::RIFFfourccLookup($thisfile_riff_raw_strh_current['fccHandler']);
$thisfile_video['fourcc'] = $thisfile_riff_raw_strh_current['fccHandler'];
if (!$thisfile_riff_video_current['codec'] && isset($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']) && self::RIFFfourccLookup($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc'])) {
$thisfile_riff_video_current['codec'] = self::RIFFfourccLookup($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']);
$thisfile_video['fourcc'] = $thisfile_riff_raw_strf_strhfccType_streamindex['fourcc'];
}
$thisfile_video['codec'] = $thisfile_riff_video_current['codec'];
$thisfile_video['pixel_aspect_ratio'] = (double) 1;
switch ($thisfile_riff_raw_strh_current['fccHandler']) {
case 'HFYU':
// Huffman Lossless Codec
// Huffman Lossless Codec
case 'IRAW':
// Intel YUV Uncompressed
// Intel YUV Uncompressed
case 'YUY2':
// Uncompressed YUV 4:2:2
$thisfile_video['lossless'] = true;
break;
default:
$thisfile_video['lossless'] = false;
break;
}
switch ($strhfccType) {
case 'vids':
$thisfile_riff_raw_strf_strhfccType_streamindex = self::ParseBITMAPINFOHEADER(substr($strfData, 0, 40), $info['fileformat'] == 'riff');
//echo '<pre>'.print_r($thisfile_riff_raw_strf_strhfccType_streamindex, true).'</pre>';
$thisfile_video['bits_per_sample'] = $thisfile_riff_raw_strf_strhfccType_streamindex['biBitCount'];
if ($thisfile_riff_video_current['codec'] == 'DV') {
$thisfile_riff_video_current['dv_type'] = 2;
}
break;
case 'iavs':
$thisfile_riff_video_current['dv_type'] = 1;
break;
}
break;
default:
$info['warning'][] = 'Unhandled fccType for stream (' . $i . '): "' . $strhfccType . '"';
break;
}
}
}
if (isset($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc'])) {
$thisfile_video['fourcc'] = $thisfile_riff_raw_strf_strhfccType_streamindex['fourcc'];
if (self::RIFFfourccLookup($thisfile_video['fourcc'])) {
$thisfile_riff_video_current['codec'] = self::RIFFfourccLookup($thisfile_video['fourcc']);
$thisfile_video['codec'] = $thisfile_riff_video_current['codec'];
}
switch ($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']) {
case 'HFYU':
// Huffman Lossless Codec
// Huffman Lossless Codec
case 'IRAW':
// Intel YUV Uncompressed
// Intel YUV Uncompressed
case 'YUY2':
// Uncompressed YUV 4:2:2
$thisfile_video['lossless'] = true;
//$thisfile_video['bits_per_sample'] = 24;
break;
default:
$thisfile_video['lossless'] = false;
//$thisfile_video['bits_per_sample'] = 24;
break;
}
}
}
}
}
break;
case 'CDDA':
$thisfile_audio['bitrate_mode'] = 'cbr';
$thisfile_audio_dataformat = 'cda';
$thisfile_audio['lossless'] = true;
unset($info['mime_type']);
$info['avdataoffset'] = 44;
if (isset($thisfile_riff['CDDA']['fmt '][0]['data'])) {
// shortcut
$thisfile_riff_CDDA_fmt_0 =& $thisfile_riff['CDDA']['fmt '][0];
$thisfile_riff_CDDA_fmt_0['unknown1'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 0, 2));
$thisfile_riff_CDDA_fmt_0['track_num'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 2, 2));
$thisfile_riff_CDDA_fmt_0['disc_id'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 4, 4));
$thisfile_riff_CDDA_fmt_0['start_offset_frame'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 8, 4));
$thisfile_riff_CDDA_fmt_0['playtime_frames'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 12, 4));
$thisfile_riff_CDDA_fmt_0['unknown6'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 16, 4));
$thisfile_riff_CDDA_fmt_0['unknown7'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 20, 4));
$thisfile_riff_CDDA_fmt_0['start_offset_seconds'] = (double) $thisfile_riff_CDDA_fmt_0['start_offset_frame'] / 75;
$thisfile_riff_CDDA_fmt_0['playtime_seconds'] = (double) $thisfile_riff_CDDA_fmt_0['playtime_frames'] / 75;
$info['comments']['track'] = $thisfile_riff_CDDA_fmt_0['track_num'];
$info['playtime_seconds'] = $thisfile_riff_CDDA_fmt_0['playtime_seconds'];
// hardcoded data for CD-audio
$thisfile_audio['sample_rate'] = 44100;
$thisfile_audio['channels'] = 2;
$thisfile_audio['bits_per_sample'] = 16;
$thisfile_audio['bitrate'] = $thisfile_audio['sample_rate'] * $thisfile_audio['channels'] * $thisfile_audio['bits_per_sample'];
$thisfile_audio['bitrate_mode'] = 'cbr';
}
break;
case 'AIFF':
case 'AIFC':
$thisfile_audio['bitrate_mode'] = 'cbr';
$thisfile_audio_dataformat = 'aiff';
$thisfile_audio['lossless'] = true;
$info['mime_type'] = 'audio/x-aiff';
if (isset($thisfile_riff[$RIFFsubtype]['SSND'][0]['offset'])) {
$info['avdataoffset'] = $thisfile_riff[$RIFFsubtype]['SSND'][0]['offset'] + 8;
$info['avdataend'] = $info['avdataoffset'] + $thisfile_riff[$RIFFsubtype]['SSND'][0]['size'];
if ($info['avdataend'] > $info['filesize']) {
if ($info['avdataend'] == $info['filesize'] + 1 && $info['filesize'] % 2 == 1) {
// structures rounded to 2-byte boundary, but dumb encoders
// forget to pad end of file to make this actually work
} else {
$info['warning'][] = 'Probable truncated AIFF file: expecting ' . $thisfile_riff[$RIFFsubtype]['SSND'][0]['size'] . ' bytes of audio data, only ' . ($info['filesize'] - $info['avdataoffset']) . ' bytes found';
}
$info['avdataend'] = $info['filesize'];
}
}
if (isset($thisfile_riff[$RIFFsubtype]['COMM'][0]['data'])) {
// shortcut
$thisfile_riff_RIFFsubtype_COMM_0_data =& $thisfile_riff[$RIFFsubtype]['COMM'][0]['data'];
$thisfile_riff_audio['channels'] = Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 0, 2), true);
$thisfile_riff_audio['total_samples'] = Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 2, 4), false);
$thisfile_riff_audio['bits_per_sample'] = Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 6, 2), true);
$thisfile_riff_audio['sample_rate'] = (int) Helper::BigEndian2Float(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 8, 10));
if ($thisfile_riff[$RIFFsubtype]['COMM'][0]['size'] > 18) {
$thisfile_riff_audio['codec_fourcc'] = substr($thisfile_riff_RIFFsubtype_COMM_0_data, 18, 4);
$CodecNameSize = Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 22, 1), false);
$thisfile_riff_audio['codec_name'] = substr($thisfile_riff_RIFFsubtype_COMM_0_data, 23, $CodecNameSize);
switch ($thisfile_riff_audio['codec_name']) {
case 'NONE':
$thisfile_audio['codec'] = 'Pulse Code Modulation (PCM)';
$thisfile_audio['lossless'] = true;
break;
case '':
switch ($thisfile_riff_audio['codec_fourcc']) {
// http://developer.apple.com/qa/snd/snd07.html
case 'sowt':
$thisfile_riff_audio['codec_name'] = 'Two\'s Compliment Little-Endian PCM';
$thisfile_audio['lossless'] = true;
break;
case 'twos':
$thisfile_riff_audio['codec_name'] = 'Two\'s Compliment Big-Endian PCM';
$thisfile_audio['lossless'] = true;
break;
default:
break;
}
break;
default:
$thisfile_audio['codec'] = $thisfile_riff_audio['codec_name'];
$thisfile_audio['lossless'] = false;
break;
}
}
$thisfile_audio['channels'] = $thisfile_riff_audio['channels'];
if ($thisfile_riff_audio['bits_per_sample'] > 0) {
$thisfile_audio['bits_per_sample'] = $thisfile_riff_audio['bits_per_sample'];
}
$thisfile_audio['sample_rate'] = $thisfile_riff_audio['sample_rate'];
if ($thisfile_audio['sample_rate'] == 0) {
$info['error'][] = 'Corrupted AIFF file: sample_rate == zero';
return false;
}
$info['playtime_seconds'] = $thisfile_riff_audio['total_samples'] / $thisfile_audio['sample_rate'];
}
if (isset($thisfile_riff[$RIFFsubtype]['COMT'])) {
$offset = 0;
$CommentCount = Helper::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 2), false);
$offset += 2;
for ($i = 0; $i < $CommentCount; ++$i) {
$info['comments_raw'][$i]['timestamp'] = Helper::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 4), false);
$offset += 4;
$info['comments_raw'][$i]['marker_id'] = Helper::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 2), true);
$offset += 2;
$CommentLength = Helper::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 2), false);
$offset += 2;
$info['comments_raw'][$i]['comment'] = substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, $CommentLength);
$offset += $CommentLength;
$info['comments_raw'][$i]['timestamp_unix'] = Helper::DateMac2Unix($info['comments_raw'][$i]['timestamp']);
$thisfile_riff['comments']['comment'][] = $info['comments_raw'][$i]['comment'];
}
}
$CommentsChunkNames = array('NAME' => 'title', 'author' => 'artist', '(c) ' => 'copyright', 'ANNO' => 'comment');
foreach ($CommentsChunkNames as $key => $value) {
if (isset($thisfile_riff[$RIFFsubtype][$key][0]['data'])) {
$thisfile_riff['comments'][$value][] = $thisfile_riff[$RIFFsubtype][$key][0]['data'];
}
}
break;
case '8SVX':
$thisfile_audio['bitrate_mode'] = 'cbr';
$thisfile_audio_dataformat = '8svx';
$thisfile_audio['bits_per_sample'] = 8;
$thisfile_audio['channels'] = 1;
// overridden below, if need be
$info['mime_type'] = 'audio/x-aiff';
if (isset($thisfile_riff[$RIFFsubtype]['BODY'][0]['offset'])) {
$info['avdataoffset'] = $thisfile_riff[$RIFFsubtype]['BODY'][0]['offset'] + 8;
$info['avdataend'] = $info['avdataoffset'] + $thisfile_riff[$RIFFsubtype]['BODY'][0]['size'];
if ($info['avdataend'] > $info['filesize']) {
$info['warning'][] = 'Probable truncated AIFF file: expecting ' . $thisfile_riff[$RIFFsubtype]['BODY'][0]['size'] . ' bytes of audio data, only ' . ($info['filesize'] - $info['avdataoffset']) . ' bytes found';
}
}
if (isset($thisfile_riff[$RIFFsubtype]['VHDR'][0]['offset'])) {
// shortcut
$thisfile_riff_RIFFsubtype_VHDR_0 =& $thisfile_riff[$RIFFsubtype]['VHDR'][0];
$thisfile_riff_RIFFsubtype_VHDR_0['oneShotHiSamples'] = Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 0, 4));
$thisfile_riff_RIFFsubtype_VHDR_0['repeatHiSamples'] = Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 4, 4));
$thisfile_riff_RIFFsubtype_VHDR_0['samplesPerHiCycle'] = Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 8, 4));
$thisfile_riff_RIFFsubtype_VHDR_0['samplesPerSec'] = Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 12, 2));
$thisfile_riff_RIFFsubtype_VHDR_0['ctOctave'] = Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 14, 1));
$thisfile_riff_RIFFsubtype_VHDR_0['sCompression'] = Helper::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 15, 1));
$thisfile_riff_RIFFsubtype_VHDR_0['Volume'] = Helper::FixedPoint16_16(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 16, 4));
$thisfile_audio['sample_rate'] = $thisfile_riff_RIFFsubtype_VHDR_0['samplesPerSec'];
switch ($thisfile_riff_RIFFsubtype_VHDR_0['sCompression']) {
case 0:
$thisfile_audio['codec'] = 'Pulse Code Modulation (PCM)';
$thisfile_audio['lossless'] = true;
$ActualBitsPerSample = 8;
break;
case 1:
$thisfile_audio['codec'] = 'Fibonacci-delta encoding';
$thisfile_audio['lossless'] = false;
$ActualBitsPerSample = 4;
break;
default:
$info['warning'][] = 'Unexpected sCompression value in 8SVX.VHDR chunk - expecting 0 or 1, found "' . sCompression . '"';
break;
}
}
if (isset($thisfile_riff[$RIFFsubtype]['CHAN'][0]['data'])) {
$ChannelsIndex = Helper::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['CHAN'][0]['data'], 0, 4));
switch ($ChannelsIndex) {
case 6:
// Stereo
$thisfile_audio['channels'] = 2;
break;
case 2:
// Left channel only
// Left channel only
case 4:
// Right channel only
$thisfile_audio['channels'] = 1;
break;
default:
$info['warning'][] = 'Unexpected value in 8SVX.CHAN chunk - expecting 2 or 4 or 6, found "' . $ChannelsIndex . '"';
break;
}
}
$CommentsChunkNames = array('NAME' => 'title', 'author' => 'artist', '(c) ' => 'copyright', 'ANNO' => 'comment');
foreach ($CommentsChunkNames as $key => $value) {
if (isset($thisfile_riff[$RIFFsubtype][$key][0]['data'])) {
$thisfile_riff['comments'][$value][] = $thisfile_riff[$RIFFsubtype][$key][0]['data'];
}
}
$thisfile_audio['bitrate'] = $thisfile_audio['sample_rate'] * $ActualBitsPerSample * $thisfile_audio['channels'];
if (!empty($thisfile_audio['bitrate'])) {
$info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset']) / ($thisfile_audio['bitrate'] / 8);
}
break;
case 'CDXA':
$info['mime_type'] = 'video/mpeg';
if (!empty($thisfile_riff['CDXA']['data'][0]['size'])) {
if (class_exists('GetId3\\Module\\AudioVideo\\Mpeg')) {
$getid3_temp = new GetId3Core();
$getid3_temp->openfile($this->getid3->filename);
$getid3_mpeg = new Mpeg($getid3_temp);
$getid3_mpeg->analyze();
if (empty($getid3_temp->info['error'])) {
$info['audio'] = $getid3_temp->info['audio'];
$info['video'] = $getid3_temp->info['video'];
$info['mpeg'] = $getid3_temp->info['mpeg'];
$info['warning'] = $getid3_temp->info['warning'];
}
unset($getid3_temp, $getid3_mpeg);
}
}
break;
default:
$info['error'][] = 'Unknown RIFF type: expecting one of (WAVE|RMP3|AVI |CDDA|AIFF|AIFC|8SVX|CDXA), found "' . $RIFFsubtype . '" instead';
unset($info['fileformat']);
break;
}
switch ($RIFFsubtype) {
case 'WAVE':
case 'AIFF':
case 'AIFC':
if (isset($thisfile_riff[$RIFFsubtype]['ID3 ']) && !array_key_exists('id3 ', $thisfile_riff[$RIFFsubtype])) {
$info['warning'][] = 'mapping "ID3 " chunk to "id3 "';
}
if (isset($thisfile_riff[$RIFFsubtype]['tag ']) && !array_key_exists('id3 ', $thisfile_riff[$RIFFsubtype])) {
$info['warning'][] = 'mapping "tag " chunk to "id3 "';
}
if (isset($thisfile_riff[$RIFFsubtype]['id3 '])) {
$getid3_temp = new GetId3Core();
$getid3_temp->openfile($this->getid3->filename);
$getid3_id3v2 = new Id3v2($getid3_temp);
$getid3_id3v2->StartingOffset = $thisfile_riff[$RIFFsubtype]['id3 '][0]['offset'] + 8;
if ($thisfile_riff[$RIFFsubtype]['id3 '][0]['valid'] = $getid3_id3v2->analyze()) {
$info['id3v2'] = $getid3_temp->info['id3v2'];
}
unset($getid3_temp, $getid3_id3v2);
}
break;
}
if (isset($thisfile_riff_raw['fmt ']['wFormatTag']) && $thisfile_riff_raw['fmt ']['wFormatTag'] == 1) {
// http://www.mega-nerd.com/erikd/Blog/Windiots/dts.html
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$FirstFourBytes = fread($this->getid3->fp, 4);
if (preg_match('/^\\xFF\\x1F\\x00\\xE8/s', $FirstFourBytes)) {
// DTSWAV
$thisfile_audio_dataformat = 'dts';
} elseif (preg_match('/^\\x7F\\xFF\\x80\\x01/s', $FirstFourBytes)) {
// DTS, but this probably shouldn't happen
$thisfile_audio_dataformat = 'dts';
}
}
if (isset($thisfile_riff_WAVE['DISP']) && is_array($thisfile_riff_WAVE['DISP'])) {
$thisfile_riff['comments']['title'][] = trim(substr($thisfile_riff_WAVE['DISP'][count($thisfile_riff_WAVE['DISP']) - 1]['data'], 4));
}
if (isset($thisfile_riff_WAVE['INFO']) && is_array($thisfile_riff_WAVE['INFO'])) {
$this->RIFFcommentsParse($thisfile_riff_WAVE['INFO'], $thisfile_riff['comments']);
}
if (isset($thisfile_riff['AVI ']['INFO']) && is_array($thisfile_riff['AVI ']['INFO'])) {
$this->RIFFcommentsParse($thisfile_riff['AVI ']['INFO'], $thisfile_riff['comments']);
}
if (empty($thisfile_audio['encoder']) && !empty($info['mpeg']['audio']['LAME']['short_version'])) {
$thisfile_audio['encoder'] = $info['mpeg']['audio']['LAME']['short_version'];
}
if (!isset($info['playtime_seconds'])) {
$info['playtime_seconds'] = 0;
}
if (isset($thisfile_riff_raw['strh'][0]['dwLength']) && isset($thisfile_riff_raw['avih']['dwMicroSecPerFrame'])) {
// needed for >2GB AVIs where 'avih' chunk only lists number of frames in that chunk, not entire movie
$info['playtime_seconds'] = $thisfile_riff_raw['strh'][0]['dwLength'] * ($thisfile_riff_raw['avih']['dwMicroSecPerFrame'] / 1000000);
} elseif (isset($thisfile_riff_raw['avih']['dwTotalFrames']) && isset($thisfile_riff_raw['avih']['dwMicroSecPerFrame'])) {
$info['playtime_seconds'] = $thisfile_riff_raw['avih']['dwTotalFrames'] * ($thisfile_riff_raw['avih']['dwMicroSecPerFrame'] / 1000000);
}
if ($info['playtime_seconds'] > 0) {
if (isset($thisfile_riff_audio) && isset($thisfile_riff_video)) {
if (!isset($info['bitrate'])) {
$info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'] * 8;
}
} elseif (isset($thisfile_riff_audio) && !isset($thisfile_riff_video)) {
if (!isset($thisfile_audio['bitrate'])) {
$thisfile_audio['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'] * 8;
}
} elseif (!isset($thisfile_riff_audio) && isset($thisfile_riff_video)) {
if (!isset($thisfile_video['bitrate'])) {
$thisfile_video['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'] * 8;
}
}
}
if (isset($thisfile_riff_video) && isset($thisfile_audio['bitrate']) && $thisfile_audio['bitrate'] > 0 && $info['playtime_seconds'] > 0) {
$info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'] * 8;
$thisfile_audio['bitrate'] = 0;
$thisfile_video['bitrate'] = $info['bitrate'];
foreach ($thisfile_riff_audio as $channelnumber => $audioinfoarray) {
$thisfile_video['bitrate'] -= $audioinfoarray['bitrate'];
$thisfile_audio['bitrate'] += $audioinfoarray['bitrate'];
}
if ($thisfile_video['bitrate'] <= 0) {
unset($thisfile_video['bitrate']);
}
if ($thisfile_audio['bitrate'] <= 0) {
unset($thisfile_audio['bitrate']);
}
}
if (isset($info['mpeg']['audio'])) {
$thisfile_audio_dataformat = 'mp' . $info['mpeg']['audio']['layer'];
$thisfile_audio['sample_rate'] = $info['mpeg']['audio']['sample_rate'];
$thisfile_audio['channels'] = $info['mpeg']['audio']['channels'];
$thisfile_audio['bitrate'] = $info['mpeg']['audio']['bitrate'];
$thisfile_audio['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']);
if (!empty($info['mpeg']['audio']['codec'])) {
$thisfile_audio['codec'] = $info['mpeg']['audio']['codec'] . ' ' . $thisfile_audio['codec'];
}
if (!empty($thisfile_audio['streams'])) {
foreach ($thisfile_audio['streams'] as $streamnumber => $streamdata) {
if ($streamdata['dataformat'] == $thisfile_audio_dataformat) {
$thisfile_audio['streams'][$streamnumber]['sample_rate'] = $thisfile_audio['sample_rate'];
$thisfile_audio['streams'][$streamnumber]['channels'] = $thisfile_audio['channels'];
$thisfile_audio['streams'][$streamnumber]['bitrate'] = $thisfile_audio['bitrate'];
$thisfile_audio['streams'][$streamnumber]['bitrate_mode'] = $thisfile_audio['bitrate_mode'];
$thisfile_audio['streams'][$streamnumber]['codec'] = $thisfile_audio['codec'];
}
}
}
$getid3_mp3 = new Mp3($this->getid3);
$thisfile_audio['encoder_options'] = $getid3_mp3->GuessEncoderOptions();
unset($getid3_mp3);
}
if (!empty($thisfile_riff_raw['fmt ']['wBitsPerSample']) && $thisfile_riff_raw['fmt ']['wBitsPerSample'] > 0) {
switch ($thisfile_audio_dataformat) {
case 'ac3':
// ignore bits_per_sample
break;
default:
$thisfile_audio['bits_per_sample'] = $thisfile_riff_raw['fmt ']['wBitsPerSample'];
break;
}
}
if (empty($thisfile_riff_raw)) {
unset($thisfile_riff['raw']);
}
if (empty($thisfile_riff_audio)) {
unset($thisfile_riff['audio']);
}
if (empty($thisfile_riff_video)) {
unset($thisfile_riff['video']);
}
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'swf';
$info['video']['dataformat'] = 'swf';
// http://www.openswf.org/spec/SWFfileformat.html
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$SWFfileData = fread($this->getid3->fp, $info['avdataend'] - $info['avdataoffset']);
// 8 + 2 + 2 + max(9) bytes NOT including Frame_Size RECT data
$info['swf']['header']['signature'] = substr($SWFfileData, 0, 3);
switch ($info['swf']['header']['signature']) {
case 'FWS':
$info['swf']['header']['compressed'] = false;
break;
case 'CWS':
$info['swf']['header']['compressed'] = true;
break;
default:
$info['error'][] = 'Expecting "FWS" or "CWS" at offset ' . $info['avdataoffset'] . ', found "' . Helper::PrintHexBytes($info['swf']['header']['signature']) . '"';
unset($info['swf']);
unset($info['fileformat']);
return false;
break;
}
$info['swf']['header']['version'] = Helper::LittleEndian2Int(substr($SWFfileData, 3, 1));
$info['swf']['header']['length'] = Helper::LittleEndian2Int(substr($SWFfileData, 4, 4));
if ($info['swf']['header']['compressed']) {
$SWFHead = substr($SWFfileData, 0, 8);
$SWFfileData = substr($SWFfileData, 8);
if ($decompressed = @gzuncompress($SWFfileData)) {
$SWFfileData = $SWFHead . $decompressed;
} else {
$info['error'][] = 'Error decompressing compressed SWF data (' . strlen($SWFfileData) . ' bytes compressed, should be ' . ($info['swf']['header']['length'] - 8) . ' bytes uncompressed)';
return false;
}
}
$FrameSizeBitsPerValue = (ord(substr($SWFfileData, 8, 1)) & 0xf8) >> 3;
$FrameSizeDataLength = ceil((5 + 4 * $FrameSizeBitsPerValue) / 8);
$FrameSizeDataString = str_pad(decbin(ord(substr($SWFfileData, 8, 1)) & 0x7), 3, '0', STR_PAD_LEFT);
for ($i = 1; $i < $FrameSizeDataLength; ++$i) {
$FrameSizeDataString .= str_pad(decbin(ord(substr($SWFfileData, 8 + $i, 1))), 8, '0', STR_PAD_LEFT);
}
list($X1, $X2, $Y1, $Y2) = explode("\n", wordwrap($FrameSizeDataString, $FrameSizeBitsPerValue, "\n", 1));
$info['swf']['header']['frame_width'] = Helper::Bin2Dec($X2);
$info['swf']['header']['frame_height'] = Helper::Bin2Dec($Y2);
// http://www-lehre.informatik.uni-osnabrueck.de/~fbstark/diplom/docs/swf/Flash_Uncovered.htm
// Next in the header is the frame rate, which is kind of weird.
// It is supposed to be stored as a 16bit integer, but the first byte
// (or last depending on how you look at it) is completely ignored.
// Example: 0x000C -> 0x0C -> 12 So the frame rate is 12 fps.
// Byte at (8 + $FrameSizeDataLength) is always zero and ignored
$info['swf']['header']['frame_rate'] = Helper::LittleEndian2Int(substr($SWFfileData, 9 + $FrameSizeDataLength, 1));
$info['swf']['header']['frame_count'] = Helper::LittleEndian2Int(substr($SWFfileData, 10 + $FrameSizeDataLength, 2));
$info['video']['frame_rate'] = $info['swf']['header']['frame_rate'];
$info['video']['resolution_x'] = intval(round($info['swf']['header']['frame_width'] / 20));
$info['video']['resolution_y'] = intval(round($info['swf']['header']['frame_height'] / 20));
$info['video']['pixel_aspect_ratio'] = (double) 1;
if ($info['swf']['header']['frame_count'] > 0 && $info['swf']['header']['frame_rate'] > 0) {
$info['playtime_seconds'] = $info['swf']['header']['frame_count'] / $info['swf']['header']['frame_rate'];
}
//echo __LINE__.'='.number_format(microtime(true) - $start_time, 3).'<br>';
// SWF tags
$CurrentOffset = 12 + $FrameSizeDataLength;
$SWFdataLength = strlen($SWFfileData);
while ($CurrentOffset < $SWFdataLength) {
//echo __LINE__.'='.number_format(microtime(true) - $start_time, 3).'<br>';
$TagIDTagLength = Helper::LittleEndian2Int(substr($SWFfileData, $CurrentOffset, 2));
$TagID = ($TagIDTagLength & 0xfffc) >> 6;
$TagLength = $TagIDTagLength & 0x3f;
$CurrentOffset += 2;
if ($TagLength == 0x3f) {
$TagLength = Helper::LittleEndian2Int(substr($SWFfileData, $CurrentOffset, 4));
$CurrentOffset += 4;
}
unset($TagData);
$TagData['offset'] = $CurrentOffset;
$TagData['size'] = $TagLength;
$TagData['id'] = $TagID;
$TagData['data'] = substr($SWFfileData, $CurrentOffset, $TagLength);
switch ($TagID) {
case 0:
// end of movie
break 2;
case 9:
// Set background color
//$info['swf']['tags'][] = $TagData;
$info['swf']['bgcolor'] = strtoupper(str_pad(dechex(Helper::BigEndian2Int($TagData['data'])), 6, '0', STR_PAD_LEFT));
break;
default:
if ($this->ReturnAllTagData) {
$info['swf']['tags'][] = $TagData;
}
break;
}
$CurrentOffset += $TagLength;
}
return true;
}
/**
* @return bool
*/
public function analyze()
{
$info =& $this->getid3->info;
if ($info['avdataend'] <= $info['avdataoffset']) {
$info['error'][] = '"avdataend" (' . $info['avdataend'] . ') is unexpectedly less-than-or-equal-to "avdataoffset" (' . $info['avdataoffset'] . ')';
return false;
}
$info['fileformat'] = 'mpeg';
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$MPEGstreamData = fread($this->getid3->fp, min(100000, $info['avdataend'] - $info['avdataoffset']));
$MPEGstreamDataLength = strlen($MPEGstreamData);
$foundVideo = true;
$VideoChunkOffset = 0;
while (substr($MPEGstreamData, $VideoChunkOffset++, 4) !== self::GETID3_MPEG_VIDEO_SEQUENCE_HEADER) {
if ($VideoChunkOffset >= $MPEGstreamDataLength) {
$foundVideo = false;
break;
}
}
if ($foundVideo) {
// Start code 32 bits
// horizontal frame size 12 bits
// vertical frame size 12 bits
// pixel aspect ratio 4 bits
// frame rate 4 bits
// bitrate 18 bits
// marker bit 1 bit
// VBV buffer size 10 bits
// constrained parameter flag 1 bit
// intra quant. matrix flag 1 bit
// intra quant. matrix values 512 bits (present if matrix flag == 1)
// non-intra quant. matrix flag 1 bit
// non-intra quant. matrix values 512 bits (present if matrix flag == 1)
$info['video']['dataformat'] = 'mpeg';
$VideoChunkOffset += strlen(self::GETID3_MPEG_VIDEO_SEQUENCE_HEADER) - 1;
$FrameSizeDWORD = Helper::BigEndian2Int(substr($MPEGstreamData, $VideoChunkOffset, 3));
$VideoChunkOffset += 3;
$AspectRatioFrameRateDWORD = Helper::BigEndian2Int(substr($MPEGstreamData, $VideoChunkOffset, 1));
$VideoChunkOffset += 1;
$assortedinformation = Helper::BigEndian2Bin(substr($MPEGstreamData, $VideoChunkOffset, 4));
$VideoChunkOffset += 4;
$info['mpeg']['video']['raw']['framesize_horizontal'] = ($FrameSizeDWORD & 0xfff000) >> 12;
// 12 bits for horizontal frame size
$info['mpeg']['video']['raw']['framesize_vertical'] = $FrameSizeDWORD & 0xfff;
// 12 bits for vertical frame size
$info['mpeg']['video']['raw']['pixel_aspect_ratio'] = ($AspectRatioFrameRateDWORD & 0xf0) >> 4;
$info['mpeg']['video']['raw']['frame_rate'] = $AspectRatioFrameRateDWORD & 0xf;
$info['mpeg']['video']['framesize_horizontal'] = $info['mpeg']['video']['raw']['framesize_horizontal'];
$info['mpeg']['video']['framesize_vertical'] = $info['mpeg']['video']['raw']['framesize_vertical'];
$info['mpeg']['video']['pixel_aspect_ratio'] = $this->MPEGvideoAspectRatioLookup($info['mpeg']['video']['raw']['pixel_aspect_ratio']);
$info['mpeg']['video']['pixel_aspect_ratio_text'] = $this->MPEGvideoAspectRatioTextLookup($info['mpeg']['video']['raw']['pixel_aspect_ratio']);
$info['mpeg']['video']['frame_rate'] = $this->MPEGvideoFramerateLookup($info['mpeg']['video']['raw']['frame_rate']);
$info['mpeg']['video']['raw']['bitrate'] = Helper::Bin2Dec(substr($assortedinformation, 0, 18));
$info['mpeg']['video']['raw']['marker_bit'] = (bool) Helper::Bin2Dec(substr($assortedinformation, 18, 1));
$info['mpeg']['video']['raw']['vbv_buffer_size'] = Helper::Bin2Dec(substr($assortedinformation, 19, 10));
$info['mpeg']['video']['raw']['constrained_param_flag'] = (bool) Helper::Bin2Dec(substr($assortedinformation, 29, 1));
$info['mpeg']['video']['raw']['intra_quant_flag'] = (bool) Helper::Bin2Dec(substr($assortedinformation, 30, 1));
if ($info['mpeg']['video']['raw']['intra_quant_flag']) {
// read 512 bits
$info['mpeg']['video']['raw']['intra_quant'] = Helper::BigEndian2Bin(substr($MPEGstreamData, $VideoChunkOffset, 64));
$VideoChunkOffset += 64;
$info['mpeg']['video']['raw']['non_intra_quant_flag'] = (bool) Helper::Bin2Dec(substr($info['mpeg']['video']['raw']['intra_quant'], 511, 1));
$info['mpeg']['video']['raw']['intra_quant'] = Helper::Bin2Dec(substr($assortedinformation, 31, 1)) . substr(Helper::BigEndian2Bin(substr($MPEGstreamData, $VideoChunkOffset, 64)), 0, 511);
if ($info['mpeg']['video']['raw']['non_intra_quant_flag']) {
$info['mpeg']['video']['raw']['non_intra_quant'] = substr($MPEGstreamData, $VideoChunkOffset, 64);
$VideoChunkOffset += 64;
}
} else {
$info['mpeg']['video']['raw']['non_intra_quant_flag'] = (bool) Helper::Bin2Dec(substr($assortedinformation, 31, 1));
if ($info['mpeg']['video']['raw']['non_intra_quant_flag']) {
$info['mpeg']['video']['raw']['non_intra_quant'] = substr($MPEGstreamData, $VideoChunkOffset, 64);
$VideoChunkOffset += 64;
}
}
if ($info['mpeg']['video']['raw']['bitrate'] == 0x3ffff) {
// 18 set bits
$info['warning'][] = 'This version of GetId3Core() [' . $this->getid3->version() . '] cannot determine average bitrate of VBR MPEG video files';
$info['mpeg']['video']['bitrate_mode'] = 'vbr';
} else {
$info['mpeg']['video']['bitrate'] = $info['mpeg']['video']['raw']['bitrate'] * 400;
$info['mpeg']['video']['bitrate_mode'] = 'cbr';
$info['video']['bitrate'] = $info['mpeg']['video']['bitrate'];
}
$info['video']['resolution_x'] = $info['mpeg']['video']['framesize_horizontal'];
$info['video']['resolution_y'] = $info['mpeg']['video']['framesize_vertical'];
$info['video']['frame_rate'] = $info['mpeg']['video']['frame_rate'];
$info['video']['bitrate_mode'] = $info['mpeg']['video']['bitrate_mode'];
$info['video']['pixel_aspect_ratio'] = $info['mpeg']['video']['pixel_aspect_ratio'];
$info['video']['lossless'] = false;
$info['video']['bits_per_sample'] = 24;
} else {
$info['error'][] = 'Could not find start of video block in the first 100,000 bytes (or before end of file) - this might not be an MPEG-video file?';
}
//0x000001B3 begins the sequence_header of every MPEG video stream.
//But in MPEG-2, this header must immediately be followed by an
//extension_start_code (0x000001B5) with a sequence_extension ID (1).
//(This extension contains all the additional MPEG-2 stuff.)
//MPEG-1 doesn't have this extension, so that's a sure way to tell the
//difference between MPEG-1 and MPEG-2 video streams.
if (substr($MPEGstreamData, $VideoChunkOffset, 4) == self::GETID3_MPEG_VIDEO_EXTENSION_START) {
$info['video']['codec'] = 'MPEG-2';
} else {
$info['video']['codec'] = 'MPEG-1';
}
$AudioChunkOffset = 0;
while (true) {
while (substr($MPEGstreamData, $AudioChunkOffset++, 4) !== self::GETID3_MPEG_AUDIO_START) {
if ($AudioChunkOffset >= $MPEGstreamDataLength) {
break 2;
}
}
$getid3_temp = new GetId3Core();
$getid3_temp->openfile($this->getid3->filename);
$getid3_temp->info = $info;
$getid3_mp3 = new Mp3($getid3_temp);
for ($i = 0; $i <= 7; ++$i) {
// some files have the MPEG-audio header 8 bytes after the end of the $00 $00 $01 $C0 signature, some have it up to 13 bytes (or more?) after
// I have no idea why or what the difference is, so this is a stupid hack.
// If anybody has any better idea of what's going on, please let me know - info@getid3.org
fseek($getid3_temp->fp, ftell($this->getid3->fp), SEEK_SET);
$getid3_temp->info = $info;
// only overwrite real data if valid header found
if ($getid3_mp3->decodeMPEGaudioHeader($AudioChunkOffset + 3 + 8 + $i, $getid3_temp->info, false)) {
$info = $getid3_temp->info;
$info['audio']['bitrate_mode'] = 'cbr';
$info['audio']['lossless'] = false;
unset($getid3_temp, $getid3_mp3);
break 2;
}
}
unset($getid3_temp, $getid3_mp3);
}
// Temporary hack to account for interleaving overhead:
if (!empty($info['video']['bitrate']) && !empty($info['audio']['bitrate'])) {
$info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / ($info['video']['bitrate'] + $info['audio']['bitrate']);
// Interleaved MPEG audio/video files have a certain amount of overhead that varies
// by both video and audio bitrates, and not in any sensible, linear/logarithmic patter
// Use interpolated lookup tables to approximately guess how much is overhead, because
// playtime is calculated as filesize / total-bitrate
$info['playtime_seconds'] *= $this->MPEGsystemNonOverheadPercentage($info['video']['bitrate'], $info['audio']['bitrate']);
//switch ($info['video']['bitrate']) {
// case('5000000'):
// $multiplier = 0.93292642112380355828048824319889;
// break;
// case('5500000'):
// $multiplier = 0.93582895375200989965359777343219;
// break;
// case('6000000'):
// $multiplier = 0.93796247714820932532911373859139;
// break;
// case('7000000'):
// $multiplier = 0.9413264083635103463010117778776;
// break;
// default:
// $multiplier = 1;
// break;
//}
//$info['playtime_seconds'] *= $multiplier;
//$info['warning'][] = 'Interleaved MPEG audio/video playtime may be inaccurate. With current hack should be within a few seconds of accurate. Report to info@getid3.org if off by more than 10 seconds.';
if ($info['video']['bitrate'] < 50000) {
$info['warning'][] = 'Interleaved MPEG audio/video playtime may be slightly inaccurate for video bitrates below 100kbps. Except in extreme low-bitrate situations, error should be less than 1%. Report to info@getid3.org if greater than this.';
}
}
return true;
}
/**
* @param type $parsedFrame
*
* @return bool
*/
public function ParseID3v2Frame(&$parsedFrame)
{
// shortcuts
$info =& $this->getid3->info;
$id3v2_majorversion = $info['id3v2']['majorversion'];
$parsedFrame['framenamelong'] = $this->FrameNameLongLookup($parsedFrame['frame_name']);
if (empty($parsedFrame['framenamelong'])) {
unset($parsedFrame['framenamelong']);
}
$parsedFrame['framenameshort'] = $this->FrameNameShortLookup($parsedFrame['frame_name']);
if (empty($parsedFrame['framenameshort'])) {
unset($parsedFrame['framenameshort']);
}
if ($id3v2_majorversion >= 3) {
// frame flags are not part of the ID3v2.2 standard
if ($id3v2_majorversion == 3) {
// Frame Header Flags
// %abc00000 %ijk00000
$parsedFrame['flags']['TagAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x8000);
// a - Tag alter preservation
$parsedFrame['flags']['FileAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x4000);
// b - File alter preservation
$parsedFrame['flags']['ReadOnly'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x2000);
// c - Read only
$parsedFrame['flags']['compression'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x80);
// i - Compression
$parsedFrame['flags']['Encryption'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x40);
// j - Encryption
$parsedFrame['flags']['GroupingIdentity'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x20);
// k - Grouping identity
} elseif ($id3v2_majorversion == 4) {
// Frame Header Flags
// %0abc0000 %0h00kmnp
$parsedFrame['flags']['TagAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x4000);
// a - Tag alter preservation
$parsedFrame['flags']['FileAlterPreservation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x2000);
// b - File alter preservation
$parsedFrame['flags']['ReadOnly'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x1000);
// c - Read only
$parsedFrame['flags']['GroupingIdentity'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x40);
// h - Grouping identity
$parsedFrame['flags']['compression'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x8);
// k - Compression
$parsedFrame['flags']['Encryption'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x4);
// m - Encryption
$parsedFrame['flags']['Unsynchronisation'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x2);
// n - Unsynchronisation
$parsedFrame['flags']['DataLengthIndicator'] = (bool) ($parsedFrame['frame_flags_raw'] & 0x1);
// p - Data length indicator
// Frame-level de-unsynchronisation - ID3v2.4
if ($parsedFrame['flags']['Unsynchronisation']) {
$parsedFrame['data'] = $this->DeUnsynchronise($parsedFrame['data']);
}
if ($parsedFrame['flags']['DataLengthIndicator']) {
$parsedFrame['data_length_indicator'] = Helper::BigEndian2Int(substr($parsedFrame['data'], 0, 4), 1);
$parsedFrame['data'] = substr($parsedFrame['data'], 4);
}
}
// Frame-level de-compression
if ($parsedFrame['flags']['compression']) {
$parsedFrame['decompressed_size'] = Helper::BigEndian2Int(substr($parsedFrame['data'], 0, 4));
if (!function_exists('gzuncompress')) {
$info['warning'][] = 'gzuncompress() support required to decompress ID3v2 frame "' . $parsedFrame['frame_name'] . '"';
} else {
if ($decompresseddata = @gzuncompress(substr($parsedFrame['data'], 4))) {
//if ($decompresseddata = @gzuncompress($parsedFrame['data'])) {
$parsedFrame['data'] = $decompresseddata;
unset($decompresseddata);
} else {
$info['warning'][] = 'gzuncompress() failed on compressed contents of ID3v2 frame "' . $parsedFrame['frame_name'] . '"';
}
}
}
}
if (!empty($parsedFrame['flags']['DataLengthIndicator'])) {
if ($parsedFrame['data_length_indicator'] != strlen($parsedFrame['data'])) {
$info['warning'][] = 'ID3v2 frame "' . $parsedFrame['frame_name'] . '" should be ' . $parsedFrame['data_length_indicator'] . ' bytes long according to DataLengthIndicator, but found ' . strlen($parsedFrame['data']) . ' bytes of data';
}
}
if (isset($parsedFrame['datalength']) && $parsedFrame['datalength'] == 0) {
$warning = 'Frame "' . $parsedFrame['frame_name'] . '" at offset ' . $parsedFrame['dataoffset'] . ' has no data portion';
switch ($parsedFrame['frame_name']) {
case 'WCOM':
$warning .= ' (this is known to happen with files tagged by RioPort)';
break;
default:
break;
}
$info['warning'][] = $warning;
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'UFID' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'UFI') {
// 4.1 UFI Unique file identifier
// There may be more than one 'UFID' frame in a tag,
// but only one with the same 'Owner identifier'.
// <Header for 'Unique file identifier', ID: 'UFID'>
// Owner identifier <text string> $00
// Identifier <up to 64 bytes binary data>
$exploded = explode("", $parsedFrame['data'], 2);
$parsedFrame['ownerid'] = isset($exploded[0]) ? $exploded[0] : '';
$parsedFrame['data'] = isset($exploded[1]) ? $exploded[1] : '';
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'TXXX' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'TXX') {
// 4.2.2 TXX User defined text information frame
// There may be more than one 'TXXX' frame in each tag,
// but only one with the same description.
// <Header for 'User defined text information frame', ID: 'TXXX'>
// Text encoding $xx
// Description <text string according to encoding> $00 (00)
// Value <text string according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
$parsedFrame['description'] = $frame_description;
$parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)));
if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
$info['id3v2']['comments'][$parsedFrame['framenameshort']][] = trim(Helper::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['data']));
}
//unset($parsedFrame['data']); do not unset, may be needed elsewhere, e.g. for replaygain
} elseif ($parsedFrame['frame_name'][0] == 'T') {
// 4.2. T??[?] Text information frame
// There may only be one text information frame of its kind in an tag.
// <Header for 'Text information frame', ID: 'T000' - 'TZZZ',
// excluding 'TXXX' described in 4.2.6.>
// Text encoding $xx
// Information <text string(s) according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset);
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
$string = Helper::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['data']);
$string = rtrim($string, "");
// remove possible terminating null (put by encoding id or software bug)
$info['id3v2']['comments'][$parsedFrame['framenameshort']][] = $string;
unset($string);
}
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'WXXX' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'WXX') {
// 4.3.2 WXX User defined URL link frame
// There may be more than one 'WXXX' frame in each tag,
// but only one with the same description
// <Header for 'User defined URL link frame', ID: 'WXXX'>
// Text encoding $xx
// Description <text string according to encoding> $00 (00)
// URL <text string>
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)));
$frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding));
if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
if ($frame_terminatorpos) {
// there are null bytes after the data - this is not according to spec
// only use data up to first null byte
$frame_urldata = (string) substr($parsedFrame['data'], 0, $frame_terminatorpos);
} else {
// no null bytes following data, just use all data
$frame_urldata = (string) $parsedFrame['data'];
}
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
$parsedFrame['url'] = $frame_urldata;
$parsedFrame['description'] = $frame_description;
if (!empty($parsedFrame['framenameshort']) && $parsedFrame['url']) {
$info['id3v2']['comments'][$parsedFrame['framenameshort']][] = Helper::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['url']);
}
unset($parsedFrame['data']);
} elseif ($parsedFrame['frame_name'][0] == 'W') {
// 4.3. W??? URL link frames
// There may only be one URL link frame of its kind in a tag,
// except when stated otherwise in the frame description
// <Header for 'URL link frame', ID: 'W000' - 'WZZZ', excluding 'WXXX'
// described in 4.3.2.>
// URL <text string>
$parsedFrame['url'] = trim($parsedFrame['data']);
if (!empty($parsedFrame['framenameshort']) && $parsedFrame['url']) {
$info['id3v2']['comments'][$parsedFrame['framenameshort']][] = $parsedFrame['url'];
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion == 3 && $parsedFrame['frame_name'] == 'IPLS' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'IPL') {
// 4.4 IPL Involved people list (ID3v2.2 only)
// There may only be one 'IPL' frame in each tag
// <Header for 'User defined URL link frame', ID: 'IPL'>
// Text encoding $xx
// People list strings <textstrings>
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($parsedFrame['encodingid']);
$parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset);
if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
$info['id3v2']['comments'][$parsedFrame['framenameshort']][] = Helper::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['data']);
}
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'MCDI' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'MCI') {
// 4.5 MCI Music CD identifier
// There may only be one 'MCDI' frame in each tag
// <Header for 'Music CD identifier', ID: 'MCDI'>
// CD TOC <binary data>
if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
$info['id3v2']['comments'][$parsedFrame['framenameshort']][] = $parsedFrame['data'];
}
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'ETCO' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'ETC') {
// 4.6 ETC Event timing codes
// There may only be one 'ETCO' frame in each tag
// <Header for 'Event timing codes', ID: 'ETCO'>
// Time stamp format $xx
// Where time stamp format is:
// $01 (32-bit value) MPEG frames from beginning of file
// $02 (32-bit value) milliseconds from beginning of file
// Followed by a list of key events in the following format:
// Type of event $xx
// Time stamp $xx (xx ...)
// The 'Time stamp' is set to zero if directly at the beginning of the sound
// or after the previous event. All events MUST be sorted in chronological order.
$frame_offset = 0;
$parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
while ($frame_offset < strlen($parsedFrame['data'])) {
$parsedFrame['typeid'] = substr($parsedFrame['data'], $frame_offset++, 1);
$parsedFrame['type'] = $this->ETCOEventLookup($parsedFrame['typeid']);
$parsedFrame['timestamp'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4));
$frame_offset += 4;
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'MLLT' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'MLL') {
// 4.7 MLL MPEG location lookup table
// There may only be one 'MLLT' frame in each tag
// <Header for 'Location lookup table', ID: 'MLLT'>
// MPEG frames between reference $xx xx
// Bytes between reference $xx xx xx
// Milliseconds between reference $xx xx xx
// Bits for bytes deviation $xx
// Bits for milliseconds dev. $xx
// Then for every reference the following data is included;
// Deviation in bytes %xxx....
// Deviation in milliseconds %xxx....
$frame_offset = 0;
$parsedFrame['framesbetweenreferences'] = Helper::BigEndian2Int(substr($parsedFrame['data'], 0, 2));
$parsedFrame['bytesbetweenreferences'] = Helper::BigEndian2Int(substr($parsedFrame['data'], 2, 3));
$parsedFrame['msbetweenreferences'] = Helper::BigEndian2Int(substr($parsedFrame['data'], 5, 3));
$parsedFrame['bitsforbytesdeviation'] = Helper::BigEndian2Int(substr($parsedFrame['data'], 8, 1));
$parsedFrame['bitsformsdeviation'] = Helper::BigEndian2Int(substr($parsedFrame['data'], 9, 1));
$parsedFrame['data'] = substr($parsedFrame['data'], 10);
while ($frame_offset < strlen($parsedFrame['data'])) {
$deviationbitstream .= Helper::BigEndian2Bin(substr($parsedFrame['data'], $frame_offset++, 1));
}
$reference_counter = 0;
while (strlen($deviationbitstream) > 0) {
$parsedFrame[$reference_counter]['bytedeviation'] = bindec(substr($deviationbitstream, 0, $parsedFrame['bitsforbytesdeviation']));
$parsedFrame[$reference_counter]['msdeviation'] = bindec(substr($deviationbitstream, $parsedFrame['bitsforbytesdeviation'], $parsedFrame['bitsformsdeviation']));
$deviationbitstream = substr($deviationbitstream, $parsedFrame['bitsforbytesdeviation'] + $parsedFrame['bitsformsdeviation']);
++$reference_counter;
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'SYTC' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'STC') {
// 4.8 STC Synchronised tempo codes
// There may only be one 'SYTC' frame in each tag
// <Header for 'Synchronised tempo codes', ID: 'SYTC'>
// Time stamp format $xx
// Tempo data <binary data>
// Where time stamp format is:
// $01 (32-bit value) MPEG frames from beginning of file
// $02 (32-bit value) milliseconds from beginning of file
$frame_offset = 0;
$parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$timestamp_counter = 0;
while ($frame_offset < strlen($parsedFrame['data'])) {
$parsedFrame[$timestamp_counter]['tempo'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($parsedFrame[$timestamp_counter]['tempo'] == 255) {
$parsedFrame[$timestamp_counter]['tempo'] += ord(substr($parsedFrame['data'], $frame_offset++, 1));
}
$parsedFrame[$timestamp_counter]['timestamp'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4));
$frame_offset += 4;
++$timestamp_counter;
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'USLT' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'ULT') {
// 4.9 ULT Unsynchronised lyric/text transcription
// There may be more than one 'Unsynchronised lyrics/text transcription' frame
// in each tag, but only one with the same language and content descriptor.
// <Header for 'Unsynchronised lyrics/text transcription', ID: 'USLT'>
// Text encoding $xx
// Language $xx xx xx
// Content descriptor <text string according to encoding> $00 (00)
// Lyrics/text <full text string according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$frame_language = substr($parsedFrame['data'], $frame_offset, 3);
$frame_offset += 3;
$frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)));
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
$parsedFrame['data'] = $parsedFrame['data'];
$parsedFrame['language'] = $frame_language;
$parsedFrame['languagename'] = $this->LanguageLookup($frame_language, false);
$parsedFrame['description'] = $frame_description;
if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
$info['id3v2']['comments'][$parsedFrame['framenameshort']][] = Helper::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['data']);
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'SYLT' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'SLT') {
// 4.10 SLT Synchronised lyric/text
// There may be more than one 'SYLT' frame in each tag,
// but only one with the same language and content descriptor.
// <Header for 'Synchronised lyrics/text', ID: 'SYLT'>
// Text encoding $xx
// Language $xx xx xx
// Time stamp format $xx
// $01 (32-bit value) MPEG frames from beginning of file
// $02 (32-bit value) milliseconds from beginning of file
// Content type $xx
// Content descriptor <text string according to encoding> $00 (00)
// Terminated text to be synced (typically a syllable)
// Sync identifier (terminator to above string) $00 (00)
// Time stamp $xx (xx ...)
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$frame_language = substr($parsedFrame['data'], $frame_offset, 3);
$frame_offset += 3;
$parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['contenttypeid'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['contenttype'] = $this->SYTLContentTypeLookup($parsedFrame['contenttypeid']);
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
$parsedFrame['language'] = $frame_language;
$parsedFrame['languagename'] = $this->LanguageLookup($frame_language, false);
$timestampindex = 0;
$frame_remainingdata = substr($parsedFrame['data'], $frame_offset);
while (strlen($frame_remainingdata)) {
$frame_offset = 0;
$frame_terminatorpos = strpos($frame_remainingdata, $this->TextEncodingTerminatorLookup($frame_textencoding));
if ($frame_terminatorpos === false) {
$frame_remainingdata = '';
} else {
if (ord(substr($frame_remainingdata, $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$parsedFrame['lyrics'][$timestampindex]['data'] = substr($frame_remainingdata, $frame_offset, $frame_terminatorpos - $frame_offset);
$frame_remainingdata = substr($frame_remainingdata, $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)));
if ($timestampindex == 0 && ord($frame_remainingdata[0]) != 0) {
// timestamp probably omitted for first data item
} else {
$parsedFrame['lyrics'][$timestampindex]['timestamp'] = Helper::BigEndian2Int(substr($frame_remainingdata, 0, 4));
$frame_remainingdata = substr($frame_remainingdata, 4);
}
++$timestampindex;
}
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'COMM' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'COM') {
// 4.11 COM Comments
// There may be more than one comment frame in each tag,
// but only one with the same language and content descriptor.
// <Header for 'Comment', ID: 'COMM'>
// Text encoding $xx
// Language $xx xx xx
// Short content descrip. <text string according to encoding> $00 (00)
// The actual text <full text string according to encoding>
if (strlen($parsedFrame['data']) < 5) {
$info['warning'][] = 'Invalid data (too short) for "' . $parsedFrame['frame_name'] . '" frame at offset ' . $parsedFrame['dataoffset'];
} else {
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$frame_language = substr($parsedFrame['data'], $frame_offset, 3);
$frame_offset += 3;
$frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_text = (string) substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)));
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
$parsedFrame['language'] = $frame_language;
$parsedFrame['languagename'] = $this->LanguageLookup($frame_language, false);
$parsedFrame['description'] = $frame_description;
$parsedFrame['data'] = $frame_text;
if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
$info['id3v2']['comments'][$parsedFrame['framenameshort']][] = Helper::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['data']);
}
}
} elseif ($id3v2_majorversion >= 4 && $parsedFrame['frame_name'] == 'RVA2') {
// 4.11 RVA2 Relative volume adjustment (2) (ID3v2.4+ only)
// There may be more than one 'RVA2' frame in each tag,
// but only one with the same identification string
// <Header for 'Relative volume adjustment (2)', ID: 'RVA2'>
// Identification <text string> $00
// The 'identification' string is used to identify the situation and/or
// device where this adjustment should apply. The following is then
// repeated for every channel:
// Type of channel $xx
// Volume adjustment $xx xx
// Bits representing peak $xx
// Peak volume $xx (xx ...)
$frame_terminatorpos = strpos($parsedFrame['data'], "");
$frame_idstring = substr($parsedFrame['data'], 0, $frame_terminatorpos);
if (ord($frame_idstring) === 0) {
$frame_idstring = '';
}
$frame_remainingdata = substr($parsedFrame['data'], $frame_terminatorpos + strlen(""));
$parsedFrame['description'] = $frame_idstring;
$RVA2channelcounter = 0;
while (strlen($frame_remainingdata) >= 5) {
$frame_offset = 0;
$frame_channeltypeid = ord(substr($frame_remainingdata, $frame_offset++, 1));
$parsedFrame[$RVA2channelcounter]['channeltypeid'] = $frame_channeltypeid;
$parsedFrame[$RVA2channelcounter]['channeltype'] = $this->RVA2ChannelTypeLookup($frame_channeltypeid);
$parsedFrame[$RVA2channelcounter]['volumeadjust'] = Helper::BigEndian2Int(substr($frame_remainingdata, $frame_offset, 2), false, true);
// 16-bit signed
$frame_offset += 2;
$parsedFrame[$RVA2channelcounter]['bitspeakvolume'] = ord(substr($frame_remainingdata, $frame_offset++, 1));
if ($parsedFrame[$RVA2channelcounter]['bitspeakvolume'] < 1 || $parsedFrame[$RVA2channelcounter]['bitspeakvolume'] > 4) {
$info['warning'][] = 'ID3v2::RVA2 frame[' . $RVA2channelcounter . '] contains invalid ' . $parsedFrame[$RVA2channelcounter]['bitspeakvolume'] . '-byte bits-representing-peak value';
break;
}
$frame_bytespeakvolume = ceil($parsedFrame[$RVA2channelcounter]['bitspeakvolume'] / 8);
$parsedFrame[$RVA2channelcounter]['peakvolume'] = Helper::BigEndian2Int(substr($frame_remainingdata, $frame_offset, $frame_bytespeakvolume));
$frame_remainingdata = substr($frame_remainingdata, $frame_offset + $frame_bytespeakvolume);
++$RVA2channelcounter;
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion == 3 && $parsedFrame['frame_name'] == 'RVAD' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'RVA') {
// 4.12 RVA Relative volume adjustment (ID3v2.2 only)
// There may only be one 'RVA' frame in each tag
// <Header for 'Relative volume adjustment', ID: 'RVA'>
// ID3v2.2 => Increment/decrement %000000ba
// ID3v2.3 => Increment/decrement %00fedcba
// Bits used for volume descr. $xx
// Relative volume change, right $xx xx (xx ...) // a
// Relative volume change, left $xx xx (xx ...) // b
// Peak volume right $xx xx (xx ...)
// Peak volume left $xx xx (xx ...)
// ID3v2.3 only, optional (not present in ID3v2.2):
// Relative volume change, right back $xx xx (xx ...) // c
// Relative volume change, left back $xx xx (xx ...) // d
// Peak volume right back $xx xx (xx ...)
// Peak volume left back $xx xx (xx ...)
// ID3v2.3 only, optional (not present in ID3v2.2):
// Relative volume change, center $xx xx (xx ...) // e
// Peak volume center $xx xx (xx ...)
// ID3v2.3 only, optional (not present in ID3v2.2):
// Relative volume change, bass $xx xx (xx ...) // f
// Peak volume bass $xx xx (xx ...)
$frame_offset = 0;
$frame_incrdecrflags = Helper::BigEndian2Bin(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['incdec']['right'] = (bool) substr($frame_incrdecrflags, 6, 1);
$parsedFrame['incdec']['left'] = (bool) substr($frame_incrdecrflags, 7, 1);
$parsedFrame['bitsvolume'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$frame_bytesvolume = ceil($parsedFrame['bitsvolume'] / 8);
$parsedFrame['volumechange']['right'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
if ($parsedFrame['incdec']['right'] === false) {
$parsedFrame['volumechange']['right'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsedFrame['volumechange']['left'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
if ($parsedFrame['incdec']['left'] === false) {
$parsedFrame['volumechange']['left'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsedFrame['peakvolume']['right'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
$parsedFrame['peakvolume']['left'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
if ($id3v2_majorversion == 3) {
$parsedFrame['data'] = substr($parsedFrame['data'], $frame_offset);
if (strlen($parsedFrame['data']) > 0) {
$parsedFrame['incdec']['rightrear'] = (bool) substr($frame_incrdecrflags, 4, 1);
$parsedFrame['incdec']['leftrear'] = (bool) substr($frame_incrdecrflags, 5, 1);
$parsedFrame['volumechange']['rightrear'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
if ($parsedFrame['incdec']['rightrear'] === false) {
$parsedFrame['volumechange']['rightrear'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsedFrame['volumechange']['leftrear'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
if ($parsedFrame['incdec']['leftrear'] === false) {
$parsedFrame['volumechange']['leftrear'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsedFrame['peakvolume']['rightrear'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
$parsedFrame['peakvolume']['leftrear'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
}
$parsedFrame['data'] = substr($parsedFrame['data'], $frame_offset);
if (strlen($parsedFrame['data']) > 0) {
$parsedFrame['incdec']['center'] = (bool) substr($frame_incrdecrflags, 3, 1);
$parsedFrame['volumechange']['center'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
if ($parsedFrame['incdec']['center'] === false) {
$parsedFrame['volumechange']['center'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsedFrame['peakvolume']['center'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
}
$parsedFrame['data'] = substr($parsedFrame['data'], $frame_offset);
if (strlen($parsedFrame['data']) > 0) {
$parsedFrame['incdec']['bass'] = (bool) substr($frame_incrdecrflags, 2, 1);
$parsedFrame['volumechange']['bass'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
if ($parsedFrame['incdec']['bass'] === false) {
$parsedFrame['volumechange']['bass'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$parsedFrame['peakvolume']['bass'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
}
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 4 && $parsedFrame['frame_name'] == 'EQU2') {
// 4.12 EQU2 Equalisation (2) (ID3v2.4+ only)
// There may be more than one 'EQU2' frame in each tag,
// but only one with the same identification string
// <Header of 'Equalisation (2)', ID: 'EQU2'>
// Interpolation method $xx
// $00 Band
// $01 Linear
// Identification <text string> $00
// The following is then repeated for every adjustment point
// Frequency $xx xx
// Volume adjustment $xx xx
$frame_offset = 0;
$frame_interpolationmethod = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_idstring = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_idstring) === 0) {
$frame_idstring = '';
}
$parsedFrame['description'] = $frame_idstring;
$frame_remainingdata = substr($parsedFrame['data'], $frame_terminatorpos + strlen(""));
while (strlen($frame_remainingdata)) {
$frame_frequency = Helper::BigEndian2Int(substr($frame_remainingdata, 0, 2)) / 2;
$parsedFrame['data'][$frame_frequency] = Helper::BigEndian2Int(substr($frame_remainingdata, 2, 2), false, true);
$frame_remainingdata = substr($frame_remainingdata, 4);
}
$parsedFrame['interpolationmethod'] = $frame_interpolationmethod;
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion == 3 && $parsedFrame['frame_name'] == 'EQUA' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'EQU') {
// 4.13 EQU Equalisation (ID3v2.2 only)
// There may only be one 'EQUA' frame in each tag
// <Header for 'Relative volume adjustment', ID: 'EQU'>
// Adjustment bits $xx
// This is followed by 2 bytes + ('adjustment bits' rounded up to the
// nearest byte) for every equalisation band in the following format,
// giving a frequency range of 0 - 32767Hz:
// Increment/decrement %x (MSB of the Frequency)
// Frequency (lower 15 bits)
// Adjustment $xx (xx ...)
$frame_offset = 0;
$parsedFrame['adjustmentbits'] = substr($parsedFrame['data'], $frame_offset++, 1);
$frame_adjustmentbytes = ceil($parsedFrame['adjustmentbits'] / 8);
$frame_remainingdata = (string) substr($parsedFrame['data'], $frame_offset);
while (strlen($frame_remainingdata) > 0) {
$frame_frequencystr = Helper::BigEndian2Bin(substr($frame_remainingdata, 0, 2));
$frame_incdec = (bool) substr($frame_frequencystr, 0, 1);
$frame_frequency = bindec(substr($frame_frequencystr, 1, 15));
$parsedFrame[$frame_frequency]['incdec'] = $frame_incdec;
$parsedFrame[$frame_frequency]['adjustment'] = Helper::BigEndian2Int(substr($frame_remainingdata, 2, $frame_adjustmentbytes));
if ($parsedFrame[$frame_frequency]['incdec'] === false) {
$parsedFrame[$frame_frequency]['adjustment'] *= -1;
}
$frame_remainingdata = substr($frame_remainingdata, 2 + $frame_adjustmentbytes);
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'RVRB' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'REV') {
// 4.14 REV Reverb
// There may only be one 'RVRB' frame in each tag.
// <Header for 'Reverb', ID: 'RVRB'>
// Reverb left (ms) $xx xx
// Reverb right (ms) $xx xx
// Reverb bounces, left $xx
// Reverb bounces, right $xx
// Reverb feedback, left to left $xx
// Reverb feedback, left to right $xx
// Reverb feedback, right to right $xx
// Reverb feedback, right to left $xx
// Premix left to right $xx
// Premix right to left $xx
$frame_offset = 0;
$parsedFrame['left'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsedFrame['right'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsedFrame['bouncesL'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['bouncesR'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['feedbackLL'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['feedbackLR'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['feedbackRR'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['feedbackRL'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['premixLR'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['premixRL'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'APIC' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'PIC') {
// 4.15 PIC Attached picture
// There may be several pictures attached to one file,
// each in their individual 'APIC' frame, but only one
// with the same content descriptor
// <Header for 'Attached picture', ID: 'APIC'>
// Text encoding $xx
// ID3v2.3+ => MIME type <text string> $00
// ID3v2.2 => Image format $xx xx xx
// Picture type $xx
// Description <text string according to encoding> $00 (00)
// Picture data <binary data>
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
if ($id3v2_majorversion == 2 && strlen($parsedFrame['data']) > $frame_offset) {
$frame_imagetype = substr($parsedFrame['data'], $frame_offset, 3);
if (strtolower($frame_imagetype) == 'ima') {
// complete hack for mp3Rage (www.chaoticsoftware.com) that puts ID3v2.3-formatted
// MIME type instead of 3-char ID3v2.2-format image type (thanks xbhoffØpacbell*net)
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_mimetype = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_mimetype) === 0) {
$frame_mimetype = '';
}
$frame_imagetype = strtoupper(str_replace('image/', '', strtolower($frame_mimetype)));
if ($frame_imagetype == 'JPEG') {
$frame_imagetype = 'JPG';
}
$frame_offset = $frame_terminatorpos + strlen("");
} else {
$frame_offset += 3;
}
}
if ($id3v2_majorversion > 2 && strlen($parsedFrame['data']) > $frame_offset) {
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_mimetype = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_mimetype) === 0) {
$frame_mimetype = '';
}
$frame_offset = $frame_terminatorpos + strlen("");
}
$frame_picturetype = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($frame_offset >= $parsedFrame['datalength']) {
$info['warning'][] = 'data portion of APIC frame is missing at offset ' . ($parsedFrame['dataoffset'] + 8 + $frame_offset);
} else {
$frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
if ($id3v2_majorversion == 2) {
$parsedFrame['imagetype'] = $frame_imagetype;
} else {
$parsedFrame['mime'] = $frame_mimetype;
}
$parsedFrame['picturetypeid'] = $frame_picturetype;
$parsedFrame['picturetype'] = $this->APICPictureTypeLookup($frame_picturetype);
$parsedFrame['description'] = $frame_description;
$parsedFrame['data'] = substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)));
$parsedFrame['datalength'] = strlen($parsedFrame['data']);
$parsedFrame['image_mime'] = '';
$imageinfo = array();
$imagechunkcheck = Helper::GetDataImageSize($parsedFrame['data'], $imageinfo);
if ($imagechunkcheck[2] >= 1 && $imagechunkcheck[2] <= 3) {
$parsedFrame['image_mime'] = 'image/' . Helper::ImageTypesLookup($imagechunkcheck[2]);
if ($imagechunkcheck[0]) {
$parsedFrame['image_width'] = $imagechunkcheck[0];
}
if ($imagechunkcheck[1]) {
$parsedFrame['image_height'] = $imagechunkcheck[1];
}
}
do {
if ($this->inline_attachments === false) {
// skip entirely
unset($parsedFrame['data']);
break;
}
if ($this->inline_attachments === true) {
// great
} elseif (is_int($this->inline_attachments)) {
if ($this->inline_attachments < $parsedFrame['data_length']) {
// too big, skip
$info['warning'][] = 'attachment at ' . $frame_offset . ' is too large to process inline (' . number_format($parsedFrame['data_length']) . ' bytes)';
unset($parsedFrame['data']);
break;
}
} elseif (is_string($this->inline_attachments)) {
$this->inline_attachments = rtrim(str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $this->inline_attachments), DIRECTORY_SEPARATOR);
if (!is_dir($this->inline_attachments) || !is_writable($this->inline_attachments)) {
// cannot write, skip
$info['warning'][] = 'attachment at ' . $frame_offset . ' cannot be saved to "' . $this->inline_attachments . '" (not writable)';
unset($parsedFrame['data']);
break;
}
}
// if we get this far, must be OK
if (is_string($this->inline_attachments)) {
$destination_filename = $this->inline_attachments . DIRECTORY_SEPARATOR . md5($info['filenamepath']) . '_' . $frame_offset;
if (!file_exists($destination_filename) || is_writable($destination_filename)) {
file_put_contents($destination_filename, $parsedFrame['data']);
} else {
$info['warning'][] = 'attachment at ' . $frame_offset . ' cannot be saved to "' . $destination_filename . '" (not writable)';
}
$parsedFrame['data_filename'] = $destination_filename;
unset($parsedFrame['data']);
} else {
if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
if (!isset($info['id3v2']['comments']['picture'])) {
$info['id3v2']['comments']['picture'] = array();
}
$info['id3v2']['comments']['picture'][] = array('data' => $parsedFrame['data'], 'image_mime' => $parsedFrame['image_mime']);
}
}
} while (false);
}
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'GEOB' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'GEO') {
// 4.16 GEO General encapsulated object
// There may be more than one 'GEOB' frame in each tag,
// but only one with the same content descriptor
// <Header for 'General encapsulated object', ID: 'GEOB'>
// Text encoding $xx
// MIME type <text string> $00
// Filename <text string according to encoding> $00 (00)
// Content description <text string according to encoding> $00 (00)
// Encapsulated object <binary data>
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_mimetype = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_mimetype) === 0) {
$frame_mimetype = '';
}
$frame_offset = $frame_terminatorpos + strlen("");
$frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_filename = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_filename) === 0) {
$frame_filename = '';
}
$frame_offset = $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding));
$frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_offset = $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding));
$parsedFrame['objectdata'] = (string) substr($parsedFrame['data'], $frame_offset);
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
$parsedFrame['mime'] = $frame_mimetype;
$parsedFrame['filename'] = $frame_filename;
$parsedFrame['description'] = $frame_description;
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'PCNT' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'CNT') {
// 4.17 CNT Play counter
// There may only be one 'PCNT' frame in each tag.
// When the counter reaches all one's, one byte is inserted in
// front of the counter thus making the counter eight bits bigger
// <Header for 'Play counter', ID: 'PCNT'>
// Counter $xx xx xx xx (xx ...)
$parsedFrame['data'] = Helper::BigEndian2Int($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'POPM' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'POP') {
// 4.18 POP Popularimeter
// There may be more than one 'POPM' frame in each tag,
// but only one with the same email address
// <Header for 'Popularimeter', ID: 'POPM'>
// Email to user <text string> $00
// Rating $xx
// Counter $xx xx xx xx (xx ...)
$frame_offset = 0;
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_emailaddress = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_emailaddress) === 0) {
$frame_emailaddress = '';
}
$frame_offset = $frame_terminatorpos + strlen("");
$frame_rating = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['counter'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset));
$parsedFrame['email'] = $frame_emailaddress;
$parsedFrame['rating'] = $frame_rating;
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'RBUF' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'BUF') {
// 4.19 BUF Recommended buffer size
// There may only be one 'RBUF' frame in each tag
// <Header for 'Recommended buffer size', ID: 'RBUF'>
// Buffer size $xx xx xx
// Embedded info flag %0000000x
// Offset to next tag $xx xx xx xx
$frame_offset = 0;
$parsedFrame['buffersize'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 3));
$frame_offset += 3;
$frame_embeddedinfoflags = Helper::BigEndian2Bin(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['flags']['embededinfo'] = (bool) substr($frame_embeddedinfoflags, 7, 1);
$parsedFrame['nexttagoffset'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4));
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'CRM') {
// 4.20 Encrypted meta frame (ID3v2.2 only)
// There may be more than one 'CRM' frame in a tag,
// but only one with the same 'owner identifier'
// <Header for 'Encrypted meta frame', ID: 'CRM'>
// Owner identifier <textstring> $00 (00)
// Content/explanation <textstring> $00 (00)
// Encrypted datablock <binary data>
$frame_offset = 0;
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_ownerid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
$frame_offset = $frame_terminatorpos + strlen("");
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_offset = $frame_terminatorpos + strlen("");
$parsedFrame['ownerid'] = $frame_ownerid;
$parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset);
$parsedFrame['description'] = $frame_description;
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'AENC' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'CRA') {
// 4.21 CRA Audio encryption
// There may be more than one 'AENC' frames in a tag,
// but only one with the same 'Owner identifier'
// <Header for 'Audio encryption', ID: 'AENC'>
// Owner identifier <text string> $00
// Preview start $xx xx
// Preview length $xx xx
// Encryption info <binary data>
$frame_offset = 0;
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_ownerid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_ownerid) === 0) {
$frame_ownerid == '';
}
$frame_offset = $frame_terminatorpos + strlen("");
$parsedFrame['ownerid'] = $frame_ownerid;
$parsedFrame['previewstart'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsedFrame['previewlength'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsedFrame['encryptioninfo'] = (string) substr($parsedFrame['data'], $frame_offset);
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'LINK' || $id3v2_majorversion == 2 && $parsedFrame['frame_name'] == 'LNK') {
// 4.22 LNK Linked information
// There may be more than one 'LINK' frame in a tag,
// but only one with the same contents
// <Header for 'Linked information', ID: 'LINK'>
// ID3v2.3+ => Frame identifier $xx xx xx xx
// ID3v2.2 => Frame identifier $xx xx xx
// URL <text string> $00
// ID and additional data <text string(s)>
$frame_offset = 0;
if ($id3v2_majorversion == 2) {
$parsedFrame['frameid'] = substr($parsedFrame['data'], $frame_offset, 3);
$frame_offset += 3;
} else {
$parsedFrame['frameid'] = substr($parsedFrame['data'], $frame_offset, 4);
$frame_offset += 4;
}
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_url = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_url) === 0) {
$frame_url = '';
}
$frame_offset = $frame_terminatorpos + strlen("");
$parsedFrame['url'] = $frame_url;
$parsedFrame['additionaldata'] = (string) substr($parsedFrame['data'], $frame_offset);
if (!empty($parsedFrame['framenameshort']) && $parsedFrame['url']) {
$info['id3v2']['comments'][$parsedFrame['framenameshort']][] = utf8_encode($parsedFrame['url']);
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'POSS') {
// 4.21 POSS Position synchronisation frame (ID3v2.3+ only)
// There may only be one 'POSS' frame in each tag
// <Head for 'Position synchronisation', ID: 'POSS'>
// Time stamp format $xx
// Position $xx (xx ...)
$frame_offset = 0;
$parsedFrame['timestampformat'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['position'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset));
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'USER') {
// 4.22 USER Terms of use (ID3v2.3+ only)
// There may be more than one 'Terms of use' frame in a tag,
// but only one with the same 'Language'
// <Header for 'Terms of use frame', ID: 'USER'>
// Text encoding $xx
// Language $xx xx xx
// The actual text <text string according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$frame_language = substr($parsedFrame['data'], $frame_offset, 3);
$frame_offset += 3;
$parsedFrame['language'] = $frame_language;
$parsedFrame['languagename'] = $this->LanguageLookup($frame_language, false);
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
$parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset);
if (!empty($parsedFrame['framenameshort']) && !empty($parsedFrame['data'])) {
$info['id3v2']['comments'][$parsedFrame['framenameshort']][] = Helper::iconv_fallback($parsedFrame['encoding'], $info['id3v2']['encoding'], $parsedFrame['data']);
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'OWNE') {
// 4.23 OWNE Ownership frame (ID3v2.3+ only)
// There may only be one 'OWNE' frame in a tag
// <Header for 'Ownership frame', ID: 'OWNE'>
// Text encoding $xx
// Price paid <text string> $00
// Date of purch. <text string>
// Seller <text string according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_pricepaid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
$frame_offset = $frame_terminatorpos + strlen("");
$parsedFrame['pricepaid']['currencyid'] = substr($frame_pricepaid, 0, 3);
$parsedFrame['pricepaid']['currency'] = $this->LookupCurrencyUnits($parsedFrame['pricepaid']['currencyid']);
$parsedFrame['pricepaid']['value'] = substr($frame_pricepaid, 3);
$parsedFrame['purchasedate'] = substr($parsedFrame['data'], $frame_offset, 8);
if (!$this->IsValidDateStampString($parsedFrame['purchasedate'])) {
$parsedFrame['purchasedateunix'] = mktime(0, 0, 0, substr($parsedFrame['purchasedate'], 4, 2), substr($parsedFrame['purchasedate'], 6, 2), substr($parsedFrame['purchasedate'], 0, 4));
}
$frame_offset += 8;
$parsedFrame['seller'] = (string) substr($parsedFrame['data'], $frame_offset);
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'COMR') {
// 4.24 COMR Commercial frame (ID3v2.3+ only)
// There may be more than one 'commercial frame' in a tag,
// but no two may be identical
// <Header for 'Commercial frame', ID: 'COMR'>
// Text encoding $xx
// Price string <text string> $00
// Valid until <text string>
// Contact URL <text string> $00
// Received as $xx
// Name of seller <text string according to encoding> $00 (00)
// Description <text string according to encoding> $00 (00)
// Picture MIME type <string> $00
// Seller logo <binary data>
$frame_offset = 0;
$frame_textencoding = ord(substr($parsedFrame['data'], $frame_offset++, 1));
if ($id3v2_majorversion <= 3 && $frame_textencoding > 1 || $id3v2_majorversion == 4 && $frame_textencoding > 3) {
$info['warning'][] = 'Invalid text encoding byte (' . $frame_textencoding . ') in frame "' . $parsedFrame['frame_name'] . '" - defaulting to ISO-8859-1 encoding';
}
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_pricestring = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
$frame_offset = $frame_terminatorpos + strlen("");
$frame_rawpricearray = explode('/', $frame_pricestring);
foreach ($frame_rawpricearray as $key => $val) {
$frame_currencyid = substr($val, 0, 3);
$parsedFrame['price'][$frame_currencyid]['currency'] = $this->LookupCurrencyUnits($frame_currencyid);
$parsedFrame['price'][$frame_currencyid]['value'] = substr($val, 3);
}
$frame_datestring = substr($parsedFrame['data'], $frame_offset, 8);
$frame_offset += 8;
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_contacturl = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
$frame_offset = $frame_terminatorpos + strlen("");
$frame_receivedasid = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_sellername = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_sellername) === 0) {
$frame_sellername = '';
}
$frame_offset = $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding));
$frame_terminatorpos = strpos($parsedFrame['data'], $this->TextEncodingTerminatorLookup($frame_textencoding), $frame_offset);
if (ord(substr($parsedFrame['data'], $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding)), 1)) === 0) {
++$frame_terminatorpos;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_offset = $frame_terminatorpos + strlen($this->TextEncodingTerminatorLookup($frame_textencoding));
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_mimetype = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
$frame_offset = $frame_terminatorpos + strlen("");
$frame_sellerlogo = substr($parsedFrame['data'], $frame_offset);
$parsedFrame['encodingid'] = $frame_textencoding;
$parsedFrame['encoding'] = $this->TextEncodingNameLookup($frame_textencoding);
$parsedFrame['pricevaliduntil'] = $frame_datestring;
$parsedFrame['contacturl'] = $frame_contacturl;
$parsedFrame['receivedasid'] = $frame_receivedasid;
$parsedFrame['receivedas'] = $this->COMRReceivedAsLookup($frame_receivedasid);
$parsedFrame['sellername'] = $frame_sellername;
$parsedFrame['description'] = $frame_description;
$parsedFrame['mime'] = $frame_mimetype;
$parsedFrame['logo'] = $frame_sellerlogo;
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'ENCR') {
// 4.25 ENCR Encryption method registration (ID3v2.3+ only)
// There may be several 'ENCR' frames in a tag,
// but only one containing the same symbol
// and only one containing the same owner identifier
// <Header for 'Encryption method registration', ID: 'ENCR'>
// Owner identifier <text string> $00
// Method symbol $xx
// Encryption data <binary data>
$frame_offset = 0;
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_ownerid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_ownerid) === 0) {
$frame_ownerid = '';
}
$frame_offset = $frame_terminatorpos + strlen("");
$parsedFrame['ownerid'] = $frame_ownerid;
$parsedFrame['methodsymbol'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'GRID') {
// 4.26 GRID Group identification registration (ID3v2.3+ only)
// There may be several 'GRID' frames in a tag,
// but only one containing the same symbol
// and only one containing the same owner identifier
// <Header for 'Group ID registration', ID: 'GRID'>
// Owner identifier <text string> $00
// Group symbol $xx
// Group dependent data <binary data>
$frame_offset = 0;
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_ownerid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_ownerid) === 0) {
$frame_ownerid = '';
}
$frame_offset = $frame_terminatorpos + strlen("");
$parsedFrame['ownerid'] = $frame_ownerid;
$parsedFrame['groupsymbol'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'PRIV') {
// 4.27 PRIV Private frame (ID3v2.3+ only)
// The tag may contain more than one 'PRIV' frame
// but only with different contents
// <Header for 'Private frame', ID: 'PRIV'>
// Owner identifier <text string> $00
// The private data <binary data>
$frame_offset = 0;
$frame_terminatorpos = strpos($parsedFrame['data'], "", $frame_offset);
$frame_ownerid = substr($parsedFrame['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_ownerid) === 0) {
$frame_ownerid = '';
}
$frame_offset = $frame_terminatorpos + strlen("");
$parsedFrame['ownerid'] = $frame_ownerid;
$parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset);
} elseif ($id3v2_majorversion >= 4 && $parsedFrame['frame_name'] == 'SIGN') {
// 4.28 SIGN Signature frame (ID3v2.4+ only)
// There may be more than one 'signature frame' in a tag,
// but no two may be identical
// <Header for 'Signature frame', ID: 'SIGN'>
// Group symbol $xx
// Signature <binary data>
$frame_offset = 0;
$parsedFrame['groupsymbol'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$parsedFrame['data'] = (string) substr($parsedFrame['data'], $frame_offset);
} elseif ($id3v2_majorversion >= 4 && $parsedFrame['frame_name'] == 'SEEK') {
// 4.29 SEEK Seek frame (ID3v2.4+ only)
// There may only be one 'seek frame' in a tag
// <Header for 'Seek frame', ID: 'SEEK'>
// Minimum offset to next tag $xx xx xx xx
$frame_offset = 0;
$parsedFrame['data'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4));
} elseif ($id3v2_majorversion >= 4 && $parsedFrame['frame_name'] == 'ASPI') {
// 4.30 ASPI Audio seek point index (ID3v2.4+ only)
// There may only be one 'audio seek point index' frame in a tag
// <Header for 'Seek Point Index', ID: 'ASPI'>
// Indexed data start (S) $xx xx xx xx
// Indexed data length (L) $xx xx xx xx
// Number of index points (N) $xx xx
// Bits per index point (b) $xx
// Then for every index point the following data is included:
// Fraction at index (Fi) $xx (xx)
$frame_offset = 0;
$parsedFrame['datastart'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4));
$frame_offset += 4;
$parsedFrame['indexeddatalength'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 4));
$frame_offset += 4;
$parsedFrame['indexpoints'] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsedFrame['bitsperpoint'] = ord(substr($parsedFrame['data'], $frame_offset++, 1));
$frame_bytesperpoint = ceil($parsedFrame['bitsperpoint'] / 8);
for ($i = 0; $i < $frame_indexpoints; ++$i) {
$parsedFrame['indexes'][$i] = Helper::BigEndian2Int(substr($parsedFrame['data'], $frame_offset, $frame_bytesperpoint));
$frame_offset += $frame_bytesperpoint;
}
unset($parsedFrame['data']);
} elseif ($id3v2_majorversion >= 3 && $parsedFrame['frame_name'] == 'RGAD') {
// Replay Gain Adjustment
// http://privatewww.essex.ac.uk/~djmrob/replaygain/file_format_id3v2.html
// There may only be one 'RGAD' frame in a tag
// <Header for 'Replay Gain Adjustment', ID: 'RGAD'>
// Peak Amplitude $xx $xx $xx $xx
// Radio Replay Gain Adjustment %aaabbbcd %dddddddd
// Audiophile Replay Gain Adjustment %aaabbbcd %dddddddd
// a - name code
// b - originator code
// c - sign bit
// d - replay gain adjustment
$frame_offset = 0;
$parsedFrame['peakamplitude'] = Helper::BigEndian2Float(substr($parsedFrame['data'], $frame_offset, 4));
$frame_offset += 4;
$rg_track_adjustment = Helper::Dec2Bin(substr($parsedFrame['data'], $frame_offset, 2));
$frame_offset += 2;
$rg_album_adjustment = Helper::Dec2Bin(substr($parsedFrame['data'], $frame_offset, 2));
$frame_offset += 2;
$parsedFrame['raw']['track']['name'] = Helper::Bin2Dec(substr($rg_track_adjustment, 0, 3));
$parsedFrame['raw']['track']['originator'] = Helper::Bin2Dec(substr($rg_track_adjustment, 3, 3));
$parsedFrame['raw']['track']['signbit'] = Helper::Bin2Dec(substr($rg_track_adjustment, 6, 1));
$parsedFrame['raw']['track']['adjustment'] = Helper::Bin2Dec(substr($rg_track_adjustment, 7, 9));
$parsedFrame['raw']['album']['name'] = Helper::Bin2Dec(substr($rg_album_adjustment, 0, 3));
$parsedFrame['raw']['album']['originator'] = Helper::Bin2Dec(substr($rg_album_adjustment, 3, 3));
$parsedFrame['raw']['album']['signbit'] = Helper::Bin2Dec(substr($rg_album_adjustment, 6, 1));
$parsedFrame['raw']['album']['adjustment'] = Helper::Bin2Dec(substr($rg_album_adjustment, 7, 9));
$parsedFrame['track']['name'] = Helper::RGADnameLookup($parsedFrame['raw']['track']['name']);
$parsedFrame['track']['originator'] = Helper::RGADoriginatorLookup($parsedFrame['raw']['track']['originator']);
$parsedFrame['track']['adjustment'] = Helper::RGADadjustmentLookup($parsedFrame['raw']['track']['adjustment'], $parsedFrame['raw']['track']['signbit']);
$parsedFrame['album']['name'] = Helper::RGADnameLookup($parsedFrame['raw']['album']['name']);
$parsedFrame['album']['originator'] = Helper::RGADoriginatorLookup($parsedFrame['raw']['album']['originator']);
$parsedFrame['album']['adjustment'] = Helper::RGADadjustmentLookup($parsedFrame['raw']['album']['adjustment'], $parsedFrame['raw']['album']['signbit']);
$info['replay_gain']['track']['peak'] = $parsedFrame['peakamplitude'];
$info['replay_gain']['track']['originator'] = $parsedFrame['track']['originator'];
$info['replay_gain']['track']['adjustment'] = $parsedFrame['track']['adjustment'];
$info['replay_gain']['album']['originator'] = $parsedFrame['album']['originator'];
$info['replay_gain']['album']['adjustment'] = $parsedFrame['album']['adjustment'];
unset($parsedFrame['data']);
}
return true;
}
/**
* @param type $BlockData
*
* @return bool
*/
private function parseSTREAMINFO($BlockData)
{
$info =& $this->getid3->info;
$info['flac']['STREAMINFO'] = array();
$streaminfo =& $info['flac']['STREAMINFO'];
$streaminfo['min_block_size'] = Helper::BigEndian2Int(substr($BlockData, 0, 2));
$streaminfo['max_block_size'] = Helper::BigEndian2Int(substr($BlockData, 2, 2));
$streaminfo['min_frame_size'] = Helper::BigEndian2Int(substr($BlockData, 4, 3));
$streaminfo['max_frame_size'] = Helper::BigEndian2Int(substr($BlockData, 7, 3));
$SRCSBSS = Helper::BigEndian2Bin(substr($BlockData, 10, 8));
$streaminfo['sample_rate'] = Helper::Bin2Dec(substr($SRCSBSS, 0, 20));
$streaminfo['channels'] = Helper::Bin2Dec(substr($SRCSBSS, 20, 3)) + 1;
$streaminfo['bits_per_sample'] = Helper::Bin2Dec(substr($SRCSBSS, 23, 5)) + 1;
$streaminfo['samples_stream'] = Helper::Bin2Dec(substr($SRCSBSS, 28, 36));
$streaminfo['audio_signature'] = substr($BlockData, 18, 16);
if (!empty($streaminfo['sample_rate'])) {
$info['audio']['bitrate_mode'] = 'vbr';
$info['audio']['sample_rate'] = $streaminfo['sample_rate'];
$info['audio']['channels'] = $streaminfo['channels'];
$info['audio']['bits_per_sample'] = $streaminfo['bits_per_sample'];
$info['playtime_seconds'] = $streaminfo['samples_stream'] / $streaminfo['sample_rate'];
if ($info['playtime_seconds'] > 0) {
if (!$this->isDependencyFor('matroska')) {
$info['audio']['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['playtime_seconds'];
} else {
$this->warning('Cannot determine audio bitrate because total stream size is unknown');
}
}
} else {
return $this->error('Corrupt METAdata block: STREAMINFO');
}
return true;
}
/**
* @return bool
*/
public function getAACADIFheaderFilepointer()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'aac';
$info['audio']['dataformat'] = 'aac';
$info['audio']['lossless'] = false;
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
$AACheader = fread($this->getid3->fp, 1024);
$offset = 0;
if (substr($AACheader, 0, 4) == 'ADIF') {
// http://faac.sourceforge.net/wiki/index.php?page=ADIF
// http://libmpeg.org/mpeg4/doc/w2203tfs.pdf
// adif_header() {
// adif_id 32
// copyright_id_present 1
// if( copyright_id_present )
// copyright_id 72
// original_copy 1
// home 1
// bitstream_type 1
// bitrate 23
// num_program_config_elements 4
// for (i = 0; i < num_program_config_elements + 1; i++) {
// if( bitstream_type == '0' )
// adif_buffer_fullness 20
// program_config_element()
// }
// }
$AACheaderBitstream = Helper::BigEndian2Bin($AACheader);
$bitoffset = 0;
$info['aac']['header_type'] = 'ADIF';
$bitoffset += 32;
$info['aac']['header']['mpeg_version'] = 4;
$info['aac']['header']['copyright'] = (bool) (substr($AACheaderBitstream, $bitoffset, 1) == '1');
$bitoffset += 1;
if ($info['aac']['header']['copyright']) {
$info['aac']['header']['copyright_id'] = Helper::Bin2String(substr($AACheaderBitstream, $bitoffset, 72));
$bitoffset += 72;
}
$info['aac']['header']['original_copy'] = (bool) (substr($AACheaderBitstream, $bitoffset, 1) == '1');
$bitoffset += 1;
$info['aac']['header']['home'] = (bool) (substr($AACheaderBitstream, $bitoffset, 1) == '1');
$bitoffset += 1;
$info['aac']['header']['is_vbr'] = (bool) (substr($AACheaderBitstream, $bitoffset, 1) == '1');
$bitoffset += 1;
if ($info['aac']['header']['is_vbr']) {
$info['audio']['bitrate_mode'] = 'vbr';
$info['aac']['header']['bitrate_max'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 23));
$bitoffset += 23;
} else {
$info['audio']['bitrate_mode'] = 'cbr';
$info['aac']['header']['bitrate'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 23));
$bitoffset += 23;
$info['audio']['bitrate'] = $info['aac']['header']['bitrate'];
}
if ($info['audio']['bitrate'] == 0) {
$info['error'][] = 'Corrupt AAC file: bitrate_audio == zero';
return false;
}
$info['aac']['header']['num_program_configs'] = 1 + Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
for ($i = 0; $i < $info['aac']['header']['num_program_configs']; ++$i) {
// http://www.audiocoding.com/wiki/index.php?page=program_config_element
// buffer_fullness 20
// element_instance_tag 4
// object_type 2
// sampling_frequency_index 4
// num_front_channel_elements 4
// num_side_channel_elements 4
// num_back_channel_elements 4
// num_lfe_channel_elements 2
// num_assoc_data_elements 3
// num_valid_cc_elements 4
// mono_mixdown_present 1
// mono_mixdown_element_number 4 if mono_mixdown_present == 1
// stereo_mixdown_present 1
// stereo_mixdown_element_number 4 if stereo_mixdown_present == 1
// matrix_mixdown_idx_present 1
// matrix_mixdown_idx 2 if matrix_mixdown_idx_present == 1
// pseudo_surround_enable 1 if matrix_mixdown_idx_present == 1
// for (i = 0; i < num_front_channel_elements; i++) {
// front_element_is_cpe[i] 1
// front_element_tag_select[i] 4
// }
// for (i = 0; i < num_side_channel_elements; i++) {
// side_element_is_cpe[i] 1
// side_element_tag_select[i] 4
// }
// for (i = 0; i < num_back_channel_elements; i++) {
// back_element_is_cpe[i] 1
// back_element_tag_select[i] 4
// }
// for (i = 0; i < num_lfe_channel_elements; i++) {
// lfe_element_tag_select[i] 4
// }
// for (i = 0; i < num_assoc_data_elements; i++) {
// assoc_data_element_tag_select[i] 4
// }
// for (i = 0; i < num_valid_cc_elements; i++) {
// cc_element_is_ind_sw[i] 1
// valid_cc_element_tag_select[i] 4
// }
// byte_alignment() VAR
// comment_field_bytes 8
// for (i = 0; i < comment_field_bytes; i++) {
// comment_field_data[i] 8
// }
if (!$info['aac']['header']['is_vbr']) {
$info['aac']['program_configs'][$i]['buffer_fullness'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 20));
$bitoffset += 20;
}
$info['aac']['program_configs'][$i]['element_instance_tag'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$info['aac']['program_configs'][$i]['object_type'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 2));
$bitoffset += 2;
$info['aac']['program_configs'][$i]['sampling_frequency_index'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$info['aac']['program_configs'][$i]['num_front_channel_elements'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$info['aac']['program_configs'][$i]['num_side_channel_elements'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$info['aac']['program_configs'][$i]['num_back_channel_elements'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$info['aac']['program_configs'][$i]['num_lfe_channel_elements'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 2));
$bitoffset += 2;
$info['aac']['program_configs'][$i]['num_assoc_data_elements'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 3));
$bitoffset += 3;
$info['aac']['program_configs'][$i]['num_valid_cc_elements'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$info['aac']['program_configs'][$i]['mono_mixdown_present'] = (bool) Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
if ($info['aac']['program_configs'][$i]['mono_mixdown_present']) {
$info['aac']['program_configs'][$i]['mono_mixdown_element_number'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
$info['aac']['program_configs'][$i]['stereo_mixdown_present'] = (bool) Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
if ($info['aac']['program_configs'][$i]['stereo_mixdown_present']) {
$info['aac']['program_configs'][$i]['stereo_mixdown_element_number'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
$info['aac']['program_configs'][$i]['matrix_mixdown_idx_present'] = (bool) Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
if ($info['aac']['program_configs'][$i]['matrix_mixdown_idx_present']) {
$info['aac']['program_configs'][$i]['matrix_mixdown_idx'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 2));
$bitoffset += 2;
$info['aac']['program_configs'][$i]['pseudo_surround_enable'] = (bool) Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
}
for ($j = 0; $j < $info['aac']['program_configs'][$i]['num_front_channel_elements']; ++$j) {
$info['aac']['program_configs'][$i]['front_element_is_cpe'][$j] = (bool) Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
$info['aac']['program_configs'][$i]['front_element_tag_select'][$j] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
for ($j = 0; $j < $info['aac']['program_configs'][$i]['num_side_channel_elements']; ++$j) {
$info['aac']['program_configs'][$i]['side_element_is_cpe'][$j] = (bool) Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
$info['aac']['program_configs'][$i]['side_element_tag_select'][$j] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
for ($j = 0; $j < $info['aac']['program_configs'][$i]['num_back_channel_elements']; ++$j) {
$info['aac']['program_configs'][$i]['back_element_is_cpe'][$j] = (bool) Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
$info['aac']['program_configs'][$i]['back_element_tag_select'][$j] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
for ($j = 0; $j < $info['aac']['program_configs'][$i]['num_lfe_channel_elements']; ++$j) {
$info['aac']['program_configs'][$i]['lfe_element_tag_select'][$j] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
for ($j = 0; $j < $info['aac']['program_configs'][$i]['num_assoc_data_elements']; ++$j) {
$info['aac']['program_configs'][$i]['assoc_data_element_tag_select'][$j] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
for ($j = 0; $j < $info['aac']['program_configs'][$i]['num_valid_cc_elements']; ++$j) {
$info['aac']['program_configs'][$i]['cc_element_is_ind_sw'][$j] = (bool) Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
$info['aac']['program_configs'][$i]['valid_cc_element_tag_select'][$j] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
$bitoffset = ceil($bitoffset / 8) * 8;
$info['aac']['program_configs'][$i]['comment_field_bytes'] = Helper::Bin2Dec(substr($AACheaderBitstream, $bitoffset, 8));
$bitoffset += 8;
$info['aac']['program_configs'][$i]['comment_field'] = Helper::Bin2String(substr($AACheaderBitstream, $bitoffset, 8 * $info['aac']['program_configs'][$i]['comment_field_bytes']));
$bitoffset += 8 * $info['aac']['program_configs'][$i]['comment_field_bytes'];
$info['aac']['header']['profile'] = self::AACprofileLookup($info['aac']['program_configs'][$i]['object_type'], $info['aac']['header']['mpeg_version']);
$info['aac']['program_configs'][$i]['sampling_frequency'] = self::AACsampleRateLookup($info['aac']['program_configs'][$i]['sampling_frequency_index']);
$info['audio']['sample_rate'] = $info['aac']['program_configs'][$i]['sampling_frequency'];
$info['audio']['channels'] = self::AACchannelCountCalculate($info['aac']['program_configs'][$i]);
if ($info['aac']['program_configs'][$i]['comment_field']) {
$info['aac']['comments'][] = $info['aac']['program_configs'][$i]['comment_field'];
}
}
$info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / $info['audio']['bitrate'];
$info['audio']['encoder_options'] = $info['aac']['header_type'] . ' ' . $info['aac']['header']['profile'];
return true;
} else {
unset($info['fileformat']);
unset($info['aac']);
$info['error'][] = 'AAC-ADIF synch not found at offset ' . $info['avdataoffset'] . ' (expected "ADIF", found "' . substr($AACheader, 0, 4) . '" instead)';
return false;
}
}