function FixedPoint2_30($rawdata)
{
$binarystring = BigEndian2Bin($rawdata);
return Bin2Dec(substr($binarystring, 0, 2)) + (double) (Bin2Dec(substr($binarystring, 2, 30)) / pow(2, 30));
}
function decodeMPEGaudioHeader($fd, $offset, &$ThisFileInfo, $recursivesearch = true, $ScanAsCBR = false, $FastMPEGheaderScan = false)
{
static $MPEGaudioVersionLookup;
static $MPEGaudioLayerLookup;
static $MPEGaudioBitrateLookup;
static $MPEGaudioFrequencyLookup;
static $MPEGaudioChannelModeLookup;
static $MPEGaudioModeExtensionLookup;
static $MPEGaudioEmphasisLookup;
if (empty($MPEGaudioVersionLookup)) {
$MPEGaudioVersionLookup = MPEGaudioVersionArray();
$MPEGaudioLayerLookup = MPEGaudioLayerArray();
$MPEGaudioBitrateLookup = MPEGaudioBitrateArray();
$MPEGaudioFrequencyLookup = MPEGaudioFrequencyArray();
$MPEGaudioChannelModeLookup = MPEGaudioChannelModeArray();
$MPEGaudioModeExtensionLookup = MPEGaudioModeExtensionArray();
$MPEGaudioEmphasisLookup = MPEGaudioEmphasisArray();
}
if ($offset >= $ThisFileInfo['avdataend']) {
$ThisFileInfo['error'] .= "\n" . 'end of file encounter looking for MPEG synch';
return false;
}
fseek($fd, $offset, SEEK_SET);
$headerstring = fread($fd, 192);
// MP3 audio frame structure:
// $aa $aa $aa $aa [$bb $bb] $cc...
// where $aa..$aa is the four-byte mpeg-audio header (below)
// $bb $bb is the optional 2-byte CRC
// and $cc... is the audio data
$head4 = substr($headerstring, 0, 4);
static $MPEGaudioHeaderDecodeCache = array();
if (isset($MPEGaudioHeaderDecodeCache[$head4])) {
$MPEGheaderRawArray = $MPEGaudioHeaderDecodeCache[$head4];
} else {
$MPEGheaderRawArray = MPEGaudioHeaderDecode($head4);
$MPEGaudioHeaderDecodeCache[$head4] = $MPEGheaderRawArray;
}
static $MPEGaudioHeaderValidCache = array();
// Not in cache
if (!isset($MPEGaudioHeaderValidCache[$head4])) {
$MPEGaudioHeaderValidCache[$head4] = MPEGaudioHeaderValid($MPEGheaderRawArray);
}
if ($MPEGaudioHeaderValidCache[$head4]) {
$ThisFileInfo['mpeg']['audio']['raw'] = $MPEGheaderRawArray;
} else {
$ThisFileInfo['error'] .= "\n" . 'Invalid MPEG audio header at offset ' . $offset;
return false;
}
if (!$FastMPEGheaderScan) {
$ThisFileInfo['mpeg']['audio']['version'] = $MPEGaudioVersionLookup[$ThisFileInfo['mpeg']['audio']['raw']['version']];
$ThisFileInfo['mpeg']['audio']['layer'] = $MPEGaudioLayerLookup[$ThisFileInfo['mpeg']['audio']['raw']['layer']];
$ThisFileInfo['mpeg']['audio']['channelmode'] = $MPEGaudioChannelModeLookup[$ThisFileInfo['mpeg']['audio']['raw']['channelmode']];
$ThisFileInfo['mpeg']['audio']['channels'] = $ThisFileInfo['mpeg']['audio']['channelmode'] == 'mono' ? 1 : 2;
$ThisFileInfo['mpeg']['audio']['sample_rate'] = $MPEGaudioFrequencyLookup[$ThisFileInfo['mpeg']['audio']['version']][$ThisFileInfo['mpeg']['audio']['raw']['sample_rate']];
$ThisFileInfo['mpeg']['audio']['protection'] = !$ThisFileInfo['mpeg']['audio']['raw']['protection'];
$ThisFileInfo['mpeg']['audio']['private'] = (bool) $ThisFileInfo['mpeg']['audio']['raw']['private'];
$ThisFileInfo['mpeg']['audio']['modeextension'] = $MPEGaudioModeExtensionLookup[$ThisFileInfo['mpeg']['audio']['layer']][$ThisFileInfo['mpeg']['audio']['raw']['modeextension']];
$ThisFileInfo['mpeg']['audio']['copyright'] = (bool) $ThisFileInfo['mpeg']['audio']['raw']['copyright'];
$ThisFileInfo['mpeg']['audio']['original'] = (bool) $ThisFileInfo['mpeg']['audio']['raw']['original'];
$ThisFileInfo['mpeg']['audio']['emphasis'] = $MPEGaudioEmphasisLookup[$ThisFileInfo['mpeg']['audio']['raw']['emphasis']];
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['mpeg']['audio']['channels'];
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['mpeg']['audio']['sample_rate'];
if ($ThisFileInfo['mpeg']['audio']['protection']) {
$ThisFileInfo['mpeg']['audio']['crc'] = BigEndian2Int(substr($headerstring, 4, 2));
}
}
$ThisFileInfo['mpeg']['audio']['padding'] = (bool) $ThisFileInfo['mpeg']['audio']['raw']['padding'];
$ThisFileInfo['mpeg']['audio']['bitrate'] = $MPEGaudioBitrateLookup[$ThisFileInfo['mpeg']['audio']['version']][$ThisFileInfo['mpeg']['audio']['layer']][$ThisFileInfo['mpeg']['audio']['raw']['bitrate']];
// For Layer II there are some combinations of bitrate and mode which are not allowed.
if (!$FastMPEGheaderScan && $ThisFileInfo['mpeg']['audio']['layer'] == 'II') {
//$ThisFileInfo['fileformat'] = 'mp2';
$ThisFileInfo['audio']['dataformat'] = 'mp2';
switch ($ThisFileInfo['mpeg']['audio']['channelmode']) {
case 'mono':
if ($ThisFileInfo['mpeg']['audio']['bitrate'] == 'free' || $ThisFileInfo['mpeg']['audio']['bitrate'] <= 192) {
// these are ok
} else {
$ThisFileInfo['error'] .= "\n" . $ThisFileInfo['mpeg']['audio']['bitrate'] . 'kbps not allowed in Layer II, ' . $ThisFileInfo['mpeg']['audio']['channelmode'] . '.';
return false;
}
break;
case 'stereo':
case 'joint stereo':
case 'dual channel':
if ($ThisFileInfo['mpeg']['audio']['bitrate'] == 'free' || $ThisFileInfo['mpeg']['audio']['bitrate'] == 64 || $ThisFileInfo['mpeg']['audio']['bitrate'] >= 96) {
// these are ok
} else {
$ThisFileInfo['error'] .= "\n" . $ThisFileInfo['mpeg']['audio']['bitrate'] . 'kbps not allowed in Layer II, ' . $ThisFileInfo['mpeg']['audio']['channelmode'] . '.';
return false;
}
break;
}
}
if ($ThisFileInfo['mpeg']['audio']['bitrate'] != 'free') {
if ($ThisFileInfo['mpeg']['audio']['version'] == '1') {
if ($ThisFileInfo['mpeg']['audio']['layer'] == 'I') {
$FrameLengthCoefficient = 48;
$FrameLengthPadding = $ThisFileInfo['mpeg']['audio']['padding'] ? 4 : 0;
// For Layer I slot is 32 bits long, for Layer II and Layer III slot is 8 bits long.
} else {
// Layer II / III
$FrameLengthCoefficient = 144;
$FrameLengthPadding = $ThisFileInfo['mpeg']['audio']['padding'] ? 1 : 0;
// For Layer I slot is 32 bits long, for Layer II and Layer III slot is 8 bits long.
}
} else {
// MPEG-2 / MPEG-2.5
if ($ThisFileInfo['mpeg']['audio']['layer'] == 'I') {
$FrameLengthCoefficient = 24;
$FrameLengthPadding = $ThisFileInfo['mpeg']['audio']['padding'] ? 4 : 0;
// For Layer I slot is 32 bits long, for Layer II and Layer III slot is 8 bits long.
} else {
// Layer II / III
$FrameLengthCoefficient = 72;
$FrameLengthPadding = $ThisFileInfo['mpeg']['audio']['padding'] ? 1 : 0;
// For Layer I slot is 32 bits long, for Layer II and Layer III slot is 8 bits long.
}
}
// FrameLengthInBytes = ((Coefficient * BitRate) / SampleRate) + Padding
// http://66.96.216.160/cgi-bin/YaBB.pl?board=c&action=display&num=1018474068
// -> [Finding the next frame synch] on www.r3mix.net forums if the above link goes dead
if ($ThisFileInfo['audio']['sample_rate'] > 0) {
$ThisFileInfo['mpeg']['audio']['framelength'] = (int) floor($FrameLengthCoefficient * 1000 * $ThisFileInfo['mpeg']['audio']['bitrate'] / $ThisFileInfo['audio']['sample_rate']) + $FrameLengthPadding;
}
}
$ThisFileInfo['audio']['bitrate'] = 1000 * $ThisFileInfo['mpeg']['audio']['bitrate'];
if (isset($ThisFileInfo['mpeg']['audio']['framelength'])) {
$nextframetestoffset = $offset + $ThisFileInfo['mpeg']['audio']['framelength'];
} else {
$ThisFileInfo['error'] .= "\n" . 'Frame at offset(' . $offset . ') is has an invalid frame length.';
return false;
}
////////////////////////////////////////////////////////////////////////////////////
// Variable-bitrate headers
if (substr($headerstring, 4 + 32, 4) == 'VBRI') {
// Fraunhofer VBR header is hardcoded 'VBRI' at offset 0x24 (36)
// specs taken from http://minnie.tuhs.org/pipermail/mp3encoder/2001-January/001800.html
$ThisFileInfo['mpeg']['audio']['bitrate_mode'] = 'vbr';
$ThisFileInfo['mpeg']['audio']['VBR_method'] = 'Fraunhofer';
$ThisFileInfo['audio']['codec'] = 'Fraunhofer';
$SideInfoData = substr($headerstring, 4 + 2, 32);
$FraunhoferVBROffset = 4 + 32 + strlen('VBRI');
$Fraunhofer_EncoderVersion = substr($headerstring, $FraunhoferVBROffset, 2);
$FraunhoferVBROffset += 2;
$ThisFileInfo['mpeg']['audio']['VBR_encoder_version'] = BigEndian2Int($Fraunhofer_EncoderVersion);
$Fraunhofer_EncoderDelay = substr($headerstring, $FraunhoferVBROffset, 2);
$FraunhoferVBROffset += 2;
$ThisFileInfo['mpeg']['audio']['VBR_encoder_delay'] = BigEndian2Int($Fraunhofer_EncoderDelay);
$Fraunhofer_quality = substr($headerstring, $FraunhoferVBROffset, 2);
$FraunhoferVBROffset += 2;
$ThisFileInfo['mpeg']['audio']['VBR_quality'] = BigEndian2Int($Fraunhofer_quality);
$Fraunhofer_Bytes = substr($headerstring, $FraunhoferVBROffset, 4);
$FraunhoferVBROffset += 4;
$ThisFileInfo['mpeg']['audio']['VBR_bytes'] = BigEndian2Int($Fraunhofer_Bytes);
$Fraunhofer_Frames = substr($headerstring, $FraunhoferVBROffset, 4);
$FraunhoferVBROffset += 4;
$ThisFileInfo['mpeg']['audio']['VBR_frames'] = BigEndian2Int($Fraunhofer_Frames);
$Fraunhofer_SeekOffsets = substr($headerstring, $FraunhoferVBROffset, 2);
$FraunhoferVBROffset += 2;
$ThisFileInfo['mpeg']['audio']['VBR_seek_offsets'] = BigEndian2Int($Fraunhofer_SeekOffsets);
$FraunhoferVBROffset += 4;
// hardcoded $00 $01 $00 $02 - purpose unknown
$Fraunhofer_OffsetStride = substr($headerstring, $FraunhoferVBROffset, 2);
$FraunhoferVBROffset += 2;
$ThisFileInfo['mpeg']['audio']['VBR_seek_offsets_stride'] = BigEndian2Int($Fraunhofer_OffsetStride);
$previousbyteoffset = $offset;
for ($i = 0; $i < $ThisFileInfo['mpeg']['audio']['VBR_seek_offsets']; $i++) {
$Fraunhofer_OffsetN = BigEndian2Int(substr($headerstring, $FraunhoferVBROffset, 2));
$FraunhoferVBROffset += 2;
$ThisFileInfo['mpeg']['audio']['VBR_offsets_relative'][$i] = $Fraunhofer_OffsetN;
$ThisFileInfo['mpeg']['audio']['VBR_offsets_absolute'][$i] = $Fraunhofer_OffsetN + $previousbyteoffset;
$previousbyteoffset += $Fraunhofer_OffsetN;
}
} else {
// Xing VBR header is hardcoded 'Xing' at a offset 0x0D (13), 0x15 (21) or 0x24 (36)
// depending on MPEG layer and number of channels
if ($ThisFileInfo['mpeg']['audio']['version'] == '1') {
if ($ThisFileInfo['mpeg']['audio']['channelmode'] == 'mono') {
// MPEG-1 (mono)
$VBRidOffset = 4 + 17;
// 0x15
$SideInfoData = substr($headerstring, 4 + 2, 17);
} else {
// MPEG-1 (stereo, joint-stereo, dual-channel)
$VBRidOffset = 4 + 32;
// 0x24
$SideInfoData = substr($headerstring, 4 + 2, 32);
}
} else {
// 2 or 2.5
if ($ThisFileInfo['mpeg']['audio']['channelmode'] == 'mono') {
// MPEG-2, MPEG-2.5 (mono)
$VBRidOffset = 4 + 9;
// 0x0D
$SideInfoData = substr($headerstring, 4 + 2, 9);
} else {
// MPEG-2, MPEG-2.5 (stereo, joint-stereo, dual-channel)
$VBRidOffset = 4 + 17;
// 0x15
$SideInfoData = substr($headerstring, 4 + 2, 17);
}
}
if (substr($headerstring, $VBRidOffset, strlen('Xing')) == 'Xing' || substr($headerstring, $VBRidOffset, strlen('Info')) == 'Info') {
// 'Xing' is traditional Xing VBR frame, 'Info' is LAME-encoded CBR
// 'This was done to avoid CBR files to be recognized as traditional Xing VBR files by some decoders.'
$ThisFileInfo['mpeg']['audio']['bitrate_mode'] = 'vbr';
$ThisFileInfo['mpeg']['audio']['VBR_method'] = 'Xing';
$XingVBROffset = $VBRidOffset + strlen('Xing');
$ThisFileInfo['mpeg']['audio']['xing_flags_raw'] = substr($headerstring, $XingVBROffset, 4);
$XingVBROffset += 4;
$XingHeader_byte4 = BigEndian2Bin(substr($ThisFileInfo['mpeg']['audio']['xing_flags_raw'], 3, 1));
$ThisFileInfo['mpeg']['audio']['xing_flags']['frames'] = (bool) $XingHeader_byte4[4];
$ThisFileInfo['mpeg']['audio']['xing_flags']['bytes'] = (bool) $XingHeader_byte4[5];
$ThisFileInfo['mpeg']['audio']['xing_flags']['toc'] = (bool) $XingHeader_byte4[6];
$ThisFileInfo['mpeg']['audio']['xing_flags']['vbr_scale'] = (bool) $XingHeader_byte4[7];
if ($ThisFileInfo['mpeg']['audio']['xing_flags']['frames']) {
$ThisFileInfo['mpeg']['audio']['VBR_frames'] = BigEndian2Int(substr($headerstring, $XingVBROffset, 4));
$XingVBROffset += 4;
}
if ($ThisFileInfo['mpeg']['audio']['xing_flags']['bytes']) {
$ThisFileInfo['mpeg']['audio']['VBR_bytes'] = BigEndian2Int(substr($headerstring, $XingVBROffset, 4));
$XingVBROffset += 4;
}
if ($ThisFileInfo['mpeg']['audio']['xing_flags']['toc']) {
$LAMEtocData = substr($headerstring, $XingVBROffset, 100);
$XingVBROffset += 100;
for ($i = 0; $i < 100; $i++) {
$ThisFileInfo['mpeg']['audio']['toc'][$i] = ord($LAMEtocData[$i]);
}
}
if ($ThisFileInfo['mpeg']['audio']['xing_flags']['vbr_scale']) {
$ThisFileInfo['mpeg']['audio']['VBR_scale'] = BigEndian2Int(substr($headerstring, $XingVBROffset, 4));
$XingVBROffset += 4;
}
if (substr($headerstring, $XingVBROffset, 4) == 'LAME') {
$ThisFileInfo['mpeg']['audio']['LAME']['short_version'] = substr($headerstring, $XingVBROffset, 9);
$XingVBROffset += 9;
$LAMEtagRevisionVBRmethod = BigEndian2Int(substr($headerstring, $XingVBROffset, 1));
$XingVBROffset += 1;
$ThisFileInfo['mpeg']['audio']['LAME']['tag_revision'] = ($LAMEtagRevisionVBRmethod & 0xf0) >> 4;
$ThisFileInfo['mpeg']['audio']['LAME']['vbr_method_raw'] = $LAMEtagRevisionVBRmethod & 0xf;
$ThisFileInfo['mpeg']['audio']['LAME']['vbr_method'] = LAMEvbrMethodLookup($ThisFileInfo['mpeg']['audio']['LAME']['vbr_method_raw']);
$ThisFileInfo['mpeg']['audio']['LAME']['lowpass_frequency'] = 100 * BigEndian2Int(substr($headerstring, $XingVBROffset, 1));
$XingVBROffset += 1;
// http://privatewww.essex.ac.uk/~djmrob/replaygain/rg_data_format.html
$ThisFileInfo['mpeg']['audio']['LAME']['RGAD']['peak_amplitude'] = BigEndian2Float(substr($headerstring, $XingVBROffset, 4));
$XingVBROffset += 4;
$RadioReplayGainRaw = BigEndian2Int(substr($headerstring, $XingVBROffset, 2));
$XingVBROffset += 4;
$ReplayGainID = ($RadioReplayGainRaw & 0xe000) >> 13;
$ReplayGainNameKey = '';
switch ($ReplayGainID) {
case 1:
$ReplayGainNameKey = 'radio';
break;
case 2:
$ReplayGainNameKey = 'audiophile';
break;
case 0:
// replay gain not set
// replay gain not set
default:
// reserved
break;
}
if ($ReplayGainNameKey) {
require_once GETID3_INCLUDEPATH . 'getid3.rgad.php';
$ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['raw']['name'] = ($RadioReplayGainRaw & 0xe000) >> 13;
$ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['raw']['originator'] = ($RadioReplayGainRaw & 0x1c00) >> 10;
$ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['raw']['sign_bit'] = ($RadioReplayGainRaw & 0x200) >> 9;
$ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['raw']['gain_adjust'] = $RadioReplayGainRaw & 0x1ff;
$ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['name'] = RGADnameLookup($ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['raw']['name']);
$ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['originator'] = RGADoriginatorLookup($ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['raw']['originator']);
$ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['gain_db'] = RGADadjustmentLookup($ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['raw']['gain_adjust'], $ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['raw']['sign_bit']);
$ThisFileInfo['replay_gain']["{$ReplayGainNameKey}"]['peak'] = $ThisFileInfo['mpeg']['audio']['LAME']['RGAD']['peak_amplitude'];
$ThisFileInfo['replay_gain']["{$ReplayGainNameKey}"]['originator'] = $ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['originator'];
$ThisFileInfo['replay_gain']["{$ReplayGainNameKey}"]['adjustment'] = $ThisFileInfo['mpeg']['audio']['LAME']['RGAD']["{$ReplayGainNameKey}"]['gain_db'];
}
$EncodingFlagsATHtype = BigEndian2Int(substr($headerstring, $XingVBROffset, 1));
$XingVBROffset += 1;
$ThisFileInfo['mpeg']['audio']['LAME']['encoding_flags']['nspsytune'] = (bool) ($EncodingFlagsATHtype & 0x10);
$ThisFileInfo['mpeg']['audio']['LAME']['encoding_flags']['nssafejoint'] = (bool) ($EncodingFlagsATHtype & 0x20);
$ThisFileInfo['mpeg']['audio']['LAME']['encoding_flags']['nogap_next'] = (bool) ($EncodingFlagsATHtype & 0x40);
$ThisFileInfo['mpeg']['audio']['LAME']['encoding_flags']['nogap_prev'] = (bool) ($EncodingFlagsATHtype & 0x80);
$ThisFileInfo['mpeg']['audio']['LAME']['ath_type'] = $EncodingFlagsATHtype & 0xf;
$ABRbitrateMinBitrate = BigEndian2Int(substr($headerstring, $XingVBROffset, 1));
$XingVBROffset += 1;
if ($ThisFileInfo['mpeg']['audio']['LAME']['vbr_method_raw'] == 2) {
// Average BitRate (ABR)
$ThisFileInfo['mpeg']['audio']['LAME']['bitrate_abr'] = $ABRbitrateMinBitrate;
} elseif ($ABRbitrateMinBitrate > 0) {
// Variable BitRate (VBR) - minimum bitrate
$ThisFileInfo['mpeg']['audio']['LAME']['bitrate_min'] = $ABRbitrateMinBitrate;
}
$EncoderDelays = BigEndian2Int(substr($headerstring, $XingVBROffset, 3));
$XingVBROffset += 3;
$ThisFileInfo['mpeg']['audio']['LAME']['encoder_delay'] = ($EncoderDelays & 0xfff000) >> 12;
$ThisFileInfo['mpeg']['audio']['LAME']['end_padding'] = $EncoderDelays & 0xfff;
$MiscByte = BigEndian2Int(substr($headerstring, $XingVBROffset, 1));
$XingVBROffset += 1;
$ThisFileInfo['mpeg']['audio']['LAME']['noise_shaping_raw'] = $EncodingFlagsATHtype & 0x3;
$ThisFileInfo['mpeg']['audio']['LAME']['stereo_mode_raw'] = ($EncodingFlagsATHtype & 0x1c) >> 2;
$ThisFileInfo['mpeg']['audio']['LAME']['not_optimal_quality_raw'] = ($EncodingFlagsATHtype & 0x20) >> 5;
$ThisFileInfo['mpeg']['audio']['LAME']['source_sample_freq_raw'] = ($EncodingFlagsATHtype & 0xc0) >> 6;
$ThisFileInfo['mpeg']['audio']['LAME']['noise_shaping'] = $ThisFileInfo['mpeg']['audio']['LAME']['noise_shaping_raw'];
$ThisFileInfo['mpeg']['audio']['LAME']['stereo_mode'] = LAMEmiscStereoModeLookup($ThisFileInfo['mpeg']['audio']['LAME']['stereo_mode_raw']);
$ThisFileInfo['mpeg']['audio']['LAME']['not_optimal_quality'] = (bool) $ThisFileInfo['mpeg']['audio']['LAME']['not_optimal_quality_raw'];
$ThisFileInfo['mpeg']['audio']['LAME']['source_sample_freq'] = LAMEmiscSourceSampleFrequencyLookup($ThisFileInfo['mpeg']['audio']['LAME']['source_sample_freq_raw']);
$ThisFileInfo['mpeg']['audio']['LAME']['mp3_gain_raw'] = BigEndian2Int(substr($headerstring, $XingVBROffset, 1), false, true);
$XingVBROffset += 1;
$ThisFileInfo['mpeg']['audio']['LAME']['mp3_gain_db'] = 1.5 * $ThisFileInfo['mpeg']['audio']['LAME']['mp3_gain_raw'];
$ThisFileInfo['mpeg']['audio']['LAME']['mp3_gain_factor'] = pow(2, $ThisFileInfo['mpeg']['audio']['LAME']['mp3_gain_db'] / 6);
$PresetSurroundBytes = BigEndian2Int(substr($headerstring, $XingVBROffset, 2));
//$Reserved = ($PresetSurroundBytes & 0xC000);
$ThisFileInfo['mpeg']['audio']['LAME']['surround_info_id'] = $PresetSurroundBytes & 0x3800;
$ThisFileInfo['mpeg']['audio']['LAME']['surround_info'] = LAMEsurroundInfoLookup($ThisFileInfo['mpeg']['audio']['LAME']['surround_info_id']);
$ThisFileInfo['mpeg']['audio']['LAME']['preset_used_id'] = $PresetSurroundBytes & 0x7ff;
$XingVBROffset += 2;
$ThisFileInfo['mpeg']['audio']['LAME']['audio_bytes'] = BigEndian2Int(substr($headerstring, $XingVBROffset, 4));
$XingVBROffset += 4;
if ($ThisFileInfo['mpeg']['audio']['LAME']['audio_bytes'] > $ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) {
$ThisFileInfo['warning'] .= "\n" . 'Probable truncated file: expecting ' . $ThisFileInfo['mpeg']['audio']['LAME']['audio_bytes'] . ' bytes of audio data, only found ' . ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']);
}
$ThisFileInfo['mpeg']['audio']['LAME']['music_crc'] = BigEndian2Int(substr($headerstring, $XingVBROffset, 2));
$XingVBROffset += 2;
$ThisFileInfo['mpeg']['audio']['LAME']['lame_tag_crc'] = BigEndian2Int(substr($headerstring, $XingVBROffset, 2));
$XingVBROffset += 2;
// LAME CBR
if ($ThisFileInfo['mpeg']['audio']['LAME']['vbr_method_raw'] == 1) {
$ThisFileInfo['mpeg']['audio']['bitrate_mode'] = 'cbr';
if (empty($ThisFileInfo['mpeg']['audio']['bitrate']) || $ThisFileInfo['mpeg']['audio']['LAME']['bitrate_min'] != 255) {
$ThisFileInfo['mpeg']['audio']['bitrate'] = $ThisFileInfo['mpeg']['audio']['LAME']['bitrate_min'];
}
}
}
} else {
// not Fraunhofer or Xing VBR methods, most likely CBR (but could be VBR with no header)
$ThisFileInfo['mpeg']['audio']['bitrate_mode'] = 'cbr';
if ($recursivesearch) {
$ThisFileInfo['mpeg']['audio']['bitrate_mode'] = 'vbr';
if (RecursiveFrameScanning($fd, $ThisFileInfo, $offset, $nextframetestoffset, true)) {
$recursivesearch = false;
$ThisFileInfo['mpeg']['audio']['bitrate_mode'] = 'cbr';
}
if ($ThisFileInfo['mpeg']['audio']['bitrate_mode'] == 'vbr') {
$ThisFileInfo['warning'] .= "\n" . 'VBR file with no VBR header. Bitrate values calculated from actual frame bitrates.';
}
}
}
}
if ($ThisFileInfo['mpeg']['audio']['bitrate_mode'] == 'vbr' && isset($ThisFileInfo['mpeg']['audio']['VBR_frames']) && $ThisFileInfo['mpeg']['audio']['VBR_frames'] > 1) {
$ThisFileInfo['mpeg']['audio']['VBR_frames']--;
// don't count the Xing / VBRI frame
if ($ThisFileInfo['mpeg']['audio']['version'] == '1' && $ThisFileInfo['mpeg']['audio']['layer'] == 'I') {
$ThisFileInfo['mpeg']['audio']['VBR_bitrate'] = $ThisFileInfo['mpeg']['audio']['VBR_bytes'] / $ThisFileInfo['mpeg']['audio']['VBR_frames'] * 8 * ($ThisFileInfo['audio']['sample_rate'] / 384) / 1000;
} elseif (($ThisFileInfo['mpeg']['audio']['version'] == '2' || $ThisFileInfo['mpeg']['audio']['version'] == '2.5') && $ThisFileInfo['mpeg']['audio']['layer'] == 'III') {
$ThisFileInfo['mpeg']['audio']['VBR_bitrate'] = $ThisFileInfo['mpeg']['audio']['VBR_bytes'] / $ThisFileInfo['mpeg']['audio']['VBR_frames'] * 8 * ($ThisFileInfo['audio']['sample_rate'] / 576) / 1000;
} else {
$ThisFileInfo['mpeg']['audio']['VBR_bitrate'] = $ThisFileInfo['mpeg']['audio']['VBR_bytes'] / $ThisFileInfo['mpeg']['audio']['VBR_frames'] * 8 * ($ThisFileInfo['audio']['sample_rate'] / 1152) / 1000;
}
if ($ThisFileInfo['mpeg']['audio']['VBR_bitrate'] > 0) {
$ThisFileInfo['audio']['bitrate'] = 1000 * $ThisFileInfo['mpeg']['audio']['VBR_bitrate'];
$ThisFileInfo['mpeg']['audio']['bitrate'] = $ThisFileInfo['mpeg']['audio']['VBR_bitrate'];
// to avoid confusion
}
}
// End variable-bitrate headers
////////////////////////////////////////////////////////////////////////////////////
if ($recursivesearch) {
if (!RecursiveFrameScanning($fd, $ThisFileInfo, $offset, $nextframetestoffset, $ScanAsCBR)) {
return false;
}
}
if (false) {
// experimental side info parsing section - not returning anything useful yet
$SideInfoBitstream = BigEndian2Bin($SideInfoData);
$SideInfoOffset = 0;
if ($ThisFileInfo['mpeg']['audio']['version'] == '1') {
if ($ThisFileInfo['mpeg']['audio']['channelmode'] == 'mono') {
// MPEG-1 (mono)
$ThisFileInfo['mpeg']['audio']['side_info']['main_data_begin'] = substr($SideInfoBitstream, $SideInfoOffset, 9);
$SideInfoOffset += 9;
$SideInfoOffset += 5;
} else {
// MPEG-1 (stereo, joint-stereo, dual-channel)
$ThisFileInfo['mpeg']['audio']['side_info']['main_data_begin'] = substr($SideInfoBitstream, $SideInfoOffset, 9);
$SideInfoOffset += 9;
$SideInfoOffset += 3;
}
} else {
// 2 or 2.5
if ($ThisFileInfo['mpeg']['audio']['channelmode'] == 'mono') {
// MPEG-2, MPEG-2.5 (mono)
$ThisFileInfo['mpeg']['audio']['side_info']['main_data_begin'] = substr($SideInfoBitstream, $SideInfoOffset, 8);
$SideInfoOffset += 8;
$SideInfoOffset += 1;
} else {
// MPEG-2, MPEG-2.5 (stereo, joint-stereo, dual-channel)
$ThisFileInfo['mpeg']['audio']['side_info']['main_data_begin'] = substr($SideInfoBitstream, $SideInfoOffset, 8);
$SideInfoOffset += 8;
$SideInfoOffset += 2;
}
}
if ($ThisFileInfo['mpeg']['audio']['version'] == '1') {
for ($channel = 0; $channel < $ThisFileInfo['audio']['channels']; $channel++) {
for ($scfsi_band = 0; $scfsi_band < 4; $scfsi_band++) {
$ThisFileInfo['mpeg']['audio']['scfsi'][$channel][$scfsi_band] = substr($SideInfoBitstream, $SideInfoOffset, 1);
$SideInfoOffset += 2;
}
}
}
for ($granule = 0; $granule < ($ThisFileInfo['mpeg']['audio']['version'] == '1' ? 2 : 1); $granule++) {
for ($channel = 0; $channel < $ThisFileInfo['audio']['channels']; $channel++) {
$ThisFileInfo['mpeg']['audio']['part2_3_length'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 12);
$SideInfoOffset += 12;
$ThisFileInfo['mpeg']['audio']['big_values'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 9);
$SideInfoOffset += 9;
$ThisFileInfo['mpeg']['audio']['global_gain'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 8);
$SideInfoOffset += 8;
if ($ThisFileInfo['mpeg']['audio']['version'] == '1') {
$ThisFileInfo['mpeg']['audio']['scalefac_compress'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 4);
$SideInfoOffset += 4;
} else {
$ThisFileInfo['mpeg']['audio']['scalefac_compress'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 9);
$SideInfoOffset += 9;
}
$ThisFileInfo['mpeg']['audio']['window_switching_flag'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 1);
$SideInfoOffset += 1;
if ($ThisFileInfo['mpeg']['audio']['window_switching_flag'][$granule][$channel] == '1') {
$ThisFileInfo['mpeg']['audio']['block_type'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 2);
$SideInfoOffset += 2;
$ThisFileInfo['mpeg']['audio']['mixed_block_flag'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 1);
$SideInfoOffset += 1;
for ($region = 0; $region < 2; $region++) {
$ThisFileInfo['mpeg']['audio']['table_select'][$granule][$channel][$region] = substr($SideInfoBitstream, $SideInfoOffset, 5);
$SideInfoOffset += 5;
}
$ThisFileInfo['mpeg']['audio']['table_select'][$granule][$channel][2] = 0;
for ($window = 0; $window < 3; $window++) {
$ThisFileInfo['mpeg']['audio']['subblock_gain'][$granule][$channel][$window] = substr($SideInfoBitstream, $SideInfoOffset, 3);
$SideInfoOffset += 3;
}
} else {
for ($region = 0; $region < 3; $region++) {
$ThisFileInfo['mpeg']['audio']['table_select'][$granule][$channel][$region] = substr($SideInfoBitstream, $SideInfoOffset, 5);
$SideInfoOffset += 5;
}
$ThisFileInfo['mpeg']['audio']['region0_count'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 4);
$SideInfoOffset += 4;
$ThisFileInfo['mpeg']['audio']['region1_count'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 3);
$SideInfoOffset += 3;
$ThisFileInfo['mpeg']['audio']['block_type'][$granule][$channel] = 0;
}
if ($ThisFileInfo['mpeg']['audio']['version'] == '1') {
$ThisFileInfo['mpeg']['audio']['preflag'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 1);
$SideInfoOffset += 1;
}
$ThisFileInfo['mpeg']['audio']['scalefac_scale'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 1);
$SideInfoOffset += 1;
$ThisFileInfo['mpeg']['audio']['count1table_select'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 1);
$SideInfoOffset += 1;
}
}
}
return true;
}
function GetAllFileInfo($filename, $assumedFormat = '', $MD5file = false, $MD5data = false, $MD5dataIfMD5SourceKnown = false)
{
$ThisFileInfo = array();
$localfilepointer = null;
if (!InitializeFilepointerArray($filename, $localfilepointer, $ThisFileInfo)) {
// remove unneeded/meaningless keys
CleanUpGetAllMP3info($ThisFileInfo);
// close & remove local filepointer
CloseRemoveFilepointer($localfilepointer);
return $ThisFileInfo;
}
// Handle ID3v1 & Lyrics3 tags
HandleID3v1Tag($localfilepointer, $ThisFileInfo);
HandleLyrics3Tag($localfilepointer, $ThisFileInfo);
rewind($localfilepointer);
//$formattest = fread($localfilepointer, 16); // 16 bytes is sufficient for any format except ISO CD-image
$formattest = fread($localfilepointer, 32774);
// (ISO needs at least 32774 bytes)
// Handle ID3v2 tag
if (HandleID3v2Tag($localfilepointer, $ThisFileInfo)) {
fseek($localfilepointer, $ThisFileInfo['avdataoffset'], SEEK_SET);
$formattest = fread($localfilepointer, 32774);
// (ISO9660 needs at least 32774 bytes)
}
// Handle APE tags
HandleAPETag($localfilepointer, $ThisFileInfo);
// Nothing-but-tags check
if ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset'] > 0) {
if ($assumedFormat) {
$format_info = GetFileFormatArray();
require_once GETID3_INCLUDEPATH . $format_info["{$assumedFormat}"]['include'];
$VariableFunctionName = $format_info["{$assumedFormat}"]['function'];
$VariableFunctionName($localfilepointer, $ThisFileInfo);
} elseif ($DeterminedFormat = GetFileFormat($formattest)) {
// break if ID3/APE tags found on illegal format
if (!$DeterminedFormat['allowtags'] && $ThisFileInfo['avdataoffset'] > 0 && $ThisFileInfo['avdataend'] != $ThisFileInfo['filesize']) {
$ThisFileInfo['error'] .= "\n" . 'Illegal ID3 and/or APE tag found on non multimedia file.';
break;
}
// set mime type
$ThisFileInfo['mime_type'] = $DeterminedFormat['mimetype'];
// supported format signature pattern detected
if (!file_exists(GETID3_INCLUDEPATH . $DeterminedFormat['include'])) {
die('<HR><FONT COLOR="#FF0000">Cannot find required file: ' . GETID3_INCLUDEPATH . $DeterminedFormat['include'] . '</FONT>');
}
require_once GETID3_INCLUDEPATH . $DeterminedFormat['include'];
$VariableFunctionName = $DeterminedFormat['function'];
$VariableFunctionName($localfilepointer, $ThisFileInfo);
} elseif ($assumedFormat == 'mp3' || $assumedFormat == '' && (substr($formattest, 0, 3) == 'ID3' || substr(BigEndian2Bin(substr($formattest, 0, 2)), 0, 11) == '11111111111')) {
// assume AAC-ADTS format
require_once GETID3_INCLUDEPATH . 'getid3.aac.php';
$dummy = $ThisFileInfo;
if (getAACADTSheaderFilepointer($localfilepointer, $dummy)) {
$ThisFileInfo = $dummy;
} else {
// it's not AAC-ADTS format, probably MP3
require_once GETID3_INCLUDEPATH . 'getid3.mp3.php';
getMP3headerFilepointer($localfilepointer, $ThisFileInfo);
}
} else {
// unknown format, do nothing
}
}
if (!empty($ThisFileInfo['audio']['channels'])) {
switch ($ThisFileInfo['audio']['channels']) {
case 1:
$ThisFileInfo['audio']['channelmode'] = 'mono';
break;
case 2:
$ThisFileInfo['audio']['channelmode'] = 'stereo';
break;
default:
// unknown?
break;
}
}
// Get the MD5 hash of the entire file
if ($MD5file && empty($ThisFileInfo['md5_file'])) {
set_time_limit(max($ThisFileInfo['filesize'] / 10000000, 30));
$ThisFileInfo['md5_file'] = md5_file($filename);
}
// Get the MD5 hash of the audio/video portion of the file
// (without ID3/APE/Lyrics3/etc header/footer tags
if ($MD5data && empty($ThisFileInfo['md5_data'])) {
if ($MD5dataIfMD5SourceKnown || empty($ThisFileInfo['md5_data_source'])) {
// Only calculate ['md5_data'] if ['md5_data_source'] is unknown,
// or if $MD5dataIfMD5SourceKnown is set to true
getMD5data($ThisFileInfo);
}
}
CalculateCompressionRatioVideo($ThisFileInfo);
CalculateCompressionRatioAudio($ThisFileInfo);
// return tags data in alphabetical order, without duplicates
$ThisFileInfo['tags'] = array_unique($ThisFileInfo['tags']);
sort($ThisFileInfo['tags']);
// remove unneeded/meaningless keys
CleanUpGetAllMP3info($ThisFileInfo);
if (isset($ThisFileInfo['fileformat'])) {
// Calculate combined bitrate - audio + video
$CombinedBitrate = 0;
$CombinedBitrate += isset($ThisFileInfo['audio']['bitrate']) ? $ThisFileInfo['audio']['bitrate'] : 0;
$CombinedBitrate += isset($ThisFileInfo['video']['bitrate']) ? $ThisFileInfo['video']['bitrate'] : 0;
if ($CombinedBitrate > 0 && !isset($ThisFileInfo['bitrate'])) {
$ThisFileInfo['bitrate'] = $CombinedBitrate;
}
if (isset($ThisFileInfo['video']) && !isset($ThisFileInfo['video']['bitrate']) || isset($ThisFileInfo['audio']) && !isset($ThisFileInfo['audio']['bitrate'])) {
// for example, VBR MPEG video files cannot determine video bitrate:
// should not set overall bitrate and playtime from audio bitrate only
unset($ThisFileInfo['bitrate']);
}
if (!isset($ThisFileInfo['playtime_seconds']) && !empty($ThisFileInfo['bitrate'])) {
$ThisFileInfo['playtime_seconds'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['bitrate'];
}
// Set playtime string
if (!empty($ThisFileInfo['playtime_seconds']) && empty($ThisFileInfo['playtime_string'])) {
$ThisFileInfo['playtime_string'] = PlaytimeString($ThisFileInfo['playtime_seconds']);
}
}
// close & remove local filepointer
CloseRemoveFilepointer($localfilepointer);
return $ThisFileInfo;
}
function getOnlyMPEGaudioInfo($fd, &$MP3fileInfo, $audiodataoffset)
{
// looks for synch, decodes MPEG audio header
// you may call this function directly if you don't need any ID3 info
fseek($fd, $audiodataoffset);
$header = '';
$SynchSeekOffset = 0;
while (!isset($MP3fileInfo['fileformat']) || $MP3fileInfo['fileformat'] == '' || $MP3fileInfo['fileformat'] == 'id3') {
if ($SynchSeekOffset > strlen($header) - 8192 && !feof($fd)) {
if ($SynchSeekOffset > FREAD_BUFFER_SIZE * 4) {
// if a synch's not found within the first 64k bytes, then give up
$MP3fileInfo['error'] .= "\n" . 'could not find valid MPEG synch within the first ' . FREAD_BUFFER_SIZE * 4 . ' bytes';
if (isset($MP3fileInfo['bitrate'])) {
unset($MP3fileInfo['bitrate']);
}
if (isset($MP3fileInfo['mpeg']['audio'])) {
unset($MP3fileInfo['mpeg']['audio']);
}
if (isset($MP3fileInfo['mpeg']) && (!is_array($MP3fileInfo['mpeg']) || count($MP3fileInfo['mpeg']) == 0)) {
unset($MP3fileInfo['mpeg']);
}
return FALSE;
} else {
if ($header .= fread($fd, FREAD_BUFFER_SIZE)) {
// great
} else {
$MP3fileInfo['error'] .= "\n" . 'could not find valid MPEG synch before end of file';
if (isset($MP3fileInfo['bitrate'])) {
unset($MP3fileInfo['bitrate']);
}
if (isset($MP3fileInfo['mpeg']['audio'])) {
unset($MP3fileInfo['mpeg']['audio']);
}
if (isset($MP3fileInfo['mpeg']) && (!is_array($MP3fileInfo['mpeg']) || count($MP3fileInfo['mpeg']) == 0)) {
unset($MP3fileInfo['mpeg']);
}
return FALSE;
}
}
}
if (ord($header[$SynchSeekOffset]) == 0xff && substr(BigEndian2Bin(substr($header, $SynchSeekOffset, 2)), 0, 11) == '11111111111') {
// synch detected
if (decodeMPEGaudioHeader($fd, $audiodataoffset + $SynchSeekOffset, $MP3fileInfo, TRUE)) {
$MP3fileInfo['audiodataoffset'] = $audiodataoffset + $SynchSeekOffset;
$MP3fileInfo['fileformat'] = 'mp3';
break;
// exit for() and while()
}
}
if (!isset($MP3fileInfo['fileformat']) || $MP3fileInfo['fileformat'] == '' || $MP3fileInfo['fileformat'] == 'id3') {
$SynchSeekOffset++;
if ($audiodataoffset + $SynchSeekOffset >= $MP3fileInfo['filesize']) {
// end of file
$MP3fileInfo['error'] .= "\n" . 'could not find valid MPEG synch before end of file';
if (isset($MP3fileInfo['bitrate'])) {
unset($MP3fileInfo['bitrate']);
}
if (isset($MP3fileInfo['mpeg']['audio'])) {
unset($MP3fileInfo['mpeg']['audio']);
}
if (isset($MP3fileInfo['mpeg']) && (!is_array($MP3fileInfo['mpeg']) || count($MP3fileInfo['mpeg']) == 0)) {
unset($MP3fileInfo['mpeg']);
}
return FALSE;
}
}
}
return TRUE;
}
function getAACADIFheaderFilepointer(&$fd, &$ThisFileInfo)
{
$ThisFileInfo['fileformat'] = 'aac';
$ThisFileInfo['audio']['dataformat'] = 'aac';
$ThisFileInfo['audio']['lossless'] = false;
fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
$AACheader = fread($fd, 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()
// }
// }
$AACheaderBitstream = BigEndian2Bin($AACheader);
$bitoffset = 0;
$ThisFileInfo['aac']['header_type'] = 'ADIF';
$bitoffset += 32;
$ThisFileInfo['aac']['header']['mpeg_version'] = 4;
$ThisFileInfo['aac']['header']['copyright'] = (bool) (substr($AACheaderBitstream, $bitoffset, 1) == '1');
$bitoffset += 1;
if ($ThisFileInfo['aac']['header']['copyright']) {
$ThisFileInfo['aac']['header']['copyright_id'] = Bin2String(substr($AACheaderBitstream, $bitoffset, 72));
$bitoffset += 72;
}
$ThisFileInfo['aac']['header']['original_copy'] = (bool) (substr($AACheaderBitstream, $bitoffset, 1) == '1');
$bitoffset += 1;
$ThisFileInfo['aac']['header']['home'] = (bool) (substr($AACheaderBitstream, $bitoffset, 1) == '1');
$bitoffset += 1;
$ThisFileInfo['aac']['header']['is_vbr'] = (bool) (substr($AACheaderBitstream, $bitoffset, 1) == '1');
$bitoffset += 1;
if ($ThisFileInfo['aac']['header']['is_vbr']) {
$ThisFileInfo['audio']['bitrate_mode'] = 'vbr';
$ThisFileInfo['aac']['header']['bitrate_max'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 23));
$bitoffset += 23;
} else {
$ThisFileInfo['audio']['bitrate_mode'] = 'cbr';
$ThisFileInfo['aac']['header']['bitrate'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 23));
$bitoffset += 23;
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['aac']['header']['bitrate'];
}
if ($ThisFileInfo['audio']['bitrate'] == 0) {
$ThisFileInfo['error'] .= "\n" . 'Corrupt AAC file: bitrate_audio == zero';
return false;
}
$ThisFileInfo['aac']['header']['num_program_configs'] = 1 + Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
for ($i = 0; $i < $ThisFileInfo['aac']['header']['num_program_configs']; $i++) {
// http://www.audiocoding.com/wiki/index.php?page=program_config_element
// buffer_fullness 20
// element_instance_tag 4
// object_type 2
// sampling_frequency_index 4
// num_front_channel_elements 4
// num_side_channel_elements 4
// num_back_channel_elements 4
// num_lfe_channel_elements 2
// num_assoc_data_elements 3
// num_valid_cc_elements 4
// mono_mixdown_present 1
// mono_mixdown_element_number 4 if mono_mixdown_present == 1
// stereo_mixdown_present 1
// stereo_mixdown_element_number 4 if stereo_mixdown_present == 1
// matrix_mixdown_idx_present 1
// matrix_mixdown_idx 2 if matrix_mixdown_idx_present == 1
// pseudo_surround_enable 1 if matrix_mixdown_idx_present == 1
// for (i = 0; i < num_front_channel_elements; i++) {
// front_element_is_cpe[i] 1
// front_element_tag_select[i] 4
// }
// for (i = 0; i < num_side_channel_elements; i++) {
// side_element_is_cpe[i] 1
// side_element_tag_select[i] 4
// }
// for (i = 0; i < num_back_channel_elements; i++) {
// back_element_is_cpe[i] 1
// back_element_tag_select[i] 4
// }
// for (i = 0; i < num_lfe_channel_elements; i++) {
// lfe_element_tag_select[i] 4
// }
// for (i = 0; i < num_assoc_data_elements; i++) {
// assoc_data_element_tag_select[i] 4
// }
// for (i = 0; i < num_valid_cc_elements; i++) {
// cc_element_is_ind_sw[i] 1
// valid_cc_element_tag_select[i] 4
// }
// byte_alignment() VAR
// comment_field_bytes 8
// for (i = 0; i < comment_field_bytes; i++) {
// comment_field_data[i] 8
// }
if (!$ThisFileInfo['aac']['header']['is_vbr']) {
$ThisFileInfo['aac']['program_configs'][$i]['buffer_fullness'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 20));
$bitoffset += 20;
}
$ThisFileInfo['aac']['program_configs'][$i]['element_instance_tag'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$ThisFileInfo['aac']['program_configs'][$i]['object_type'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 2));
$bitoffset += 2;
$ThisFileInfo['aac']['program_configs'][$i]['sampling_frequency_index'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$ThisFileInfo['aac']['program_configs'][$i]['num_front_channel_elements'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$ThisFileInfo['aac']['program_configs'][$i]['num_side_channel_elements'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$ThisFileInfo['aac']['program_configs'][$i]['num_back_channel_elements'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$ThisFileInfo['aac']['program_configs'][$i]['num_lfe_channel_elements'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 2));
$bitoffset += 2;
$ThisFileInfo['aac']['program_configs'][$i]['num_assoc_data_elements'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 3));
$bitoffset += 3;
$ThisFileInfo['aac']['program_configs'][$i]['num_valid_cc_elements'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
$ThisFileInfo['aac']['program_configs'][$i]['mono_mixdown_present'] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
if ($ThisFileInfo['aac']['program_configs'][$i]['mono_mixdown_present']) {
$ThisFileInfo['aac']['program_configs'][$i]['mono_mixdown_element_number'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
$ThisFileInfo['aac']['program_configs'][$i]['stereo_mixdown_present'] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
if ($ThisFileInfo['aac']['program_configs'][$i]['stereo_mixdown_present']) {
$ThisFileInfo['aac']['program_configs'][$i]['stereo_mixdown_element_number'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
$ThisFileInfo['aac']['program_configs'][$i]['matrix_mixdown_idx_present'] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
if ($ThisFileInfo['aac']['program_configs'][$i]['matrix_mixdown_idx_present']) {
$ThisFileInfo['aac']['program_configs'][$i]['matrix_mixdown_idx'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 2));
$bitoffset += 2;
$ThisFileInfo['aac']['program_configs'][$i]['pseudo_surround_enable'] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
}
for ($j = 0; $j < $ThisFileInfo['aac']['program_configs'][$i]['num_front_channel_elements']; $j++) {
$ThisFileInfo['aac']['program_configs'][$i]['front_element_is_cpe'][$j] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
$ThisFileInfo['aac']['program_configs'][$i]['front_element_tag_select'][$j] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
for ($j = 0; $j < $ThisFileInfo['aac']['program_configs'][$i]['num_side_channel_elements']; $j++) {
$ThisFileInfo['aac']['program_configs'][$i]['side_element_is_cpe'][$j] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
$ThisFileInfo['aac']['program_configs'][$i]['side_element_tag_select'][$j] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
for ($j = 0; $j < $ThisFileInfo['aac']['program_configs'][$i]['num_back_channel_elements']; $j++) {
$ThisFileInfo['aac']['program_configs'][$i]['back_element_is_cpe'][$j] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
$ThisFileInfo['aac']['program_configs'][$i]['back_element_tag_select'][$j] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
for ($j = 0; $j < $ThisFileInfo['aac']['program_configs'][$i]['num_lfe_channel_elements']; $j++) {
$ThisFileInfo['aac']['program_configs'][$i]['lfe_element_tag_select'][$j] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
for ($j = 0; $j < $ThisFileInfo['aac']['program_configs'][$i]['num_assoc_data_elements']; $j++) {
$ThisFileInfo['aac']['program_configs'][$i]['assoc_data_element_tag_select'][$j] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
for ($j = 0; $j < $ThisFileInfo['aac']['program_configs'][$i]['num_valid_cc_elements']; $j++) {
$ThisFileInfo['aac']['program_configs'][$i]['cc_element_is_ind_sw'][$j] = (bool) Bin2Dec(substr($AACheaderBitstream, $bitoffset, 1));
$bitoffset += 1;
$ThisFileInfo['aac']['program_configs'][$i]['valid_cc_element_tag_select'][$j] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 4));
$bitoffset += 4;
}
$bitoffset = ceil($bitoffset / 8) * 8;
$ThisFileInfo['aac']['program_configs'][$i]['comment_field_bytes'] = Bin2Dec(substr($AACheaderBitstream, $bitoffset, 8));
$bitoffset += 8;
$ThisFileInfo['aac']['program_configs'][$i]['comment_field'] = Bin2String(substr($AACheaderBitstream, $bitoffset, 8 * $ThisFileInfo['aac']['program_configs'][$i]['comment_field_bytes']));
$bitoffset += 8 * $ThisFileInfo['aac']['program_configs'][$i]['comment_field_bytes'];
$ThisFileInfo['aac']['header']['profile_text'] = AACprofileLookup($ThisFileInfo['aac']['program_configs'][$i]['object_type'], $ThisFileInfo['aac']['header']['mpeg_version']);
$ThisFileInfo['aac']['program_configs'][$i]['sampling_frequency'] = AACsampleRateLookup($ThisFileInfo['aac']['program_configs'][$i]['sampling_frequency_index']);
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['aac']['program_configs'][$i]['sampling_frequency'];
$ThisFileInfo['audio']['channels'] = AACchannelCountCalculate($ThisFileInfo['aac']['program_configs'][$i]);
if ($ThisFileInfo['aac']['program_configs'][$i]['comment_field']) {
$ThisFileInfo['comments']['comment'][] = $ThisFileInfo['aac']['program_configs'][$i]['comment_field'];
}
}
$ThisFileInfo['playtime_seconds'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['audio']['bitrate'];
return true;
} else {
unset($ThisFileInfo['fileformat']);
unset($ThisFileInfo['aac']);
$ThisFileInfo['error'] .= "\n" . 'AAC-ADIF synch not found (expected "ADIF", found "' . substr($AACheader, 0, 4) . '" instead)';
return false;
}
}
function ID3v2FrameProcessing($frame_name, $frame_flags, &$MP3fileInfo)
{
// define $frame_arrayindex once here (used for many frames), override or ignore as neccesary
$frame_arrayindex = count($MP3fileInfo['id3']['id3v2']["{$frame_name}"]);
// 'data', 'datalength'
if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'])) {
$frame_arrayindex--;
}
if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'])) {
$frame_arrayindex--;
}
if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'])) {
$frame_arrayindex--;
}
if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'])) {
$frame_arrayindex--;
}
if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['timestampformat'])) {
$frame_arrayindex--;
}
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
// frame flags are not part of the ID3v2.2 standard
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3) {
// Frame Header Flags
// %abc00000 %ijk00000
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['TagAlterPreservation'] = (bool) substr($frame_flags, 0, 1);
// a - Tag alter preservation
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['FileAlterPreservation'] = (bool) substr($frame_flags, 1, 1);
// b - File alter preservation
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['ReadOnly'] = (bool) substr($frame_flags, 2, 1);
// c - Read only
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['compression'] = (bool) substr($frame_flags, 8, 1);
// i - Compression
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['Encryption'] = (bool) substr($frame_flags, 9, 1);
// j - Encryption
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['GroupingIdentity'] = (bool) substr($frame_flags, 10, 1);
// k - Grouping identity
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 4) {
// Frame Header Flags
// %0abc0000 %0h00kmnp
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['TagAlterPreservation'] = (bool) substr($frame_flags, 1, 1);
// a - Tag alter preservation
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['FileAlterPreservation'] = (bool) substr($frame_flags, 2, 1);
// b - File alter preservation
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['ReadOnly'] = (bool) substr($frame_flags, 3, 1);
// c - Read only
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['GroupingIdentity'] = (bool) substr($frame_flags, 9, 1);
// h - Grouping identity
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['compression'] = (bool) substr($frame_flags, 12, 1);
// k - Compression
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['Encryption'] = (bool) substr($frame_flags, 13, 1);
// m - Encryption
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['Unsynchronisation'] = (bool) substr($frame_flags, 14, 1);
// n - Unsynchronisation
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['DataLengthIndicator'] = (bool) substr($frame_flags, 15, 1);
// p - Data length indicator
}
}
// Frame-level de-unsynchronization - ID3v2.4
if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['Unsynchronisation'])) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = DeUnSynchronise($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
}
// Frame-level de-compression
if (isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['compression'])) {
// it's on the wishlist :)
}
}
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'UFID' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'UFI') {
// 4.1 UFI Unique file identifier
// There may be more than one 'UFID' frame in a tag,
// but only one with the same 'Owner identifier'.
// <Header for 'Unique file identifier', ID: 'UFID'>
// Owner identifier <text string> $00
// Identifier <up to 64 bytes binary data>
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0));
$frame_idstring = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 0, $frame_terminatorpos);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_idstring;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(chr(0)));
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'TXXX' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'TXX') {
// 4.2.2 TXX User defined text information frame
// There may be more than one 'TXXX' frame in each tag,
// but only one with the same description.
// <Header for 'User defined text information frame', ID: 'TXXX'>
// Text encoding $xx
// Description <text string according to encoding> $00 (00)
// Value <text string according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset);
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description;
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)));
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'], $frame_textencoding);
}
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($frame_name[0] == 'T') {
// 4.2. T??[?] Text information frame
// There may only be one text information frame of its kind in an tag.
// <Header for 'Text information frame', ID: 'T000' - 'TZZZ',
// excluding 'TXXX' described in 4.2.6.>
// Text encoding $xx
// Information <text string(s) according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
// $MP3fileInfo['id3']['id3v2']["$frame_name"]['data'] = substr($MP3fileInfo['id3']['id3v2']["$frame_name"]['data'], $frame_offset);
// this one-line method should work, but as a safeguard against null-padded data, do it the safe way
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset);
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
if ($frame_terminatorpos) {
// there are null bytes after the data - this is not according to spec
// only use data up to first null byte
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
} else {
// no null bytes following data, just use all data
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
}
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['compression']) || !$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['compression']) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_textencoding);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'WXXX' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'WXX') {
// 4.3.2 WXX User defined URL link frame
// There may be more than one 'WXXX' frame in each tag,
// but only one with the same description
// <Header for 'User defined URL link frame', ID: 'WXXX'>
// Text encoding $xx
// Description <text string according to encoding> $00 (00)
// URL <text string>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset);
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding));
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
if ($frame_terminatorpos) {
// there are null bytes after the data - this is not according to spec
// only use data up to first null byte
$frame_urldata = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 0, $frame_terminatorpos);
} else {
// no null bytes following data, just use all data
$frame_urldata = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'];
}
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['url'] = $frame_urldata;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description;
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($frame_name[0] == 'W') {
// 4.3. W??? URL link frames
// There may only be one URL link frame of its kind in a tag,
// except when stated otherwise in the frame description
// <Header for 'URL link frame', ID: 'W000' - 'WZZZ', excluding 'WXXX'
// described in 4.3.2.>
// URL <text string>
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['url'] = trim($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3 && $frame_name == 'IPLS' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'IPL') {
// 4.4 IPL Involved people list (ID3v2.2 only)
// There may only be one 'IPL' frame in each tag
// <Header for 'User defined URL link frame', ID: 'IPL'>
// Text encoding $xx
// People list strings <textstrings>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encoding'] = TextEncodingLookup('encoding', $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encodingid']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'MCDI' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'MCI') {
// 4.5 MCI Music CD identifier
// There may only be one 'MCDI' frame in each tag
// <Header for 'Music CD identifier', ID: 'MCDI'>
// CD TOC <binary data>
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
// no other special processing needed
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'ETCO' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'ETC') {
// 4.6 ETC Event timing codes
// There may only be one 'ETCO' frame in each tag
// <Header for 'Event timing codes', ID: 'ETCO'>
// Time stamp format $xx
// Where time stamp format is:
// $01 (32-bit value) MPEG frames from beginning of file
// $02 (32-bit value) milliseconds from beginning of file
// Followed by a list of key events in the following format:
// Type of event $xx
// Time stamp $xx (xx ...)
// The 'Time stamp' is set to zero if directly at the beginning of the sound
// or after the previous event. All events MUST be sorted in chronological order.
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['timestampformat'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
while ($frame_offset < strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'])) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['typeid'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['type'] = ETCOEventLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['typeid']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['timestamp'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4));
$frame_offset += 4;
}
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'MLLT' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'MLL') {
// 4.7 MLL MPEG location lookup table
// There may only be one 'MLLT' frame in each tag
// <Header for 'Location lookup table', ID: 'MLLT'>
// MPEG frames between reference $xx xx
// Bytes between reference $xx xx xx
// Milliseconds between reference $xx xx xx
// Bits for bytes deviation $xx
// Bits for milliseconds dev. $xx
// Then for every reference the following data is included;
// Deviation in bytes %xxx....
// Deviation in milliseconds %xxx....
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framesbetweenreferences'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 0, 2));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bytesbetweenreferences'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 2, 3));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['msbetweenreferences'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 5, 3));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsforbytesdeviation'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 8, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsformsdeviation'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 9, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 10);
while ($frame_offset < strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'])) {
$deviationbitstream .= BigEndian2Bin(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
}
while (strlen($deviationbitstream)) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['bytedeviation'] = bindec(substr($deviationbitstream, 0, $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsforbytesdeviation']));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['msdeviation'] = bindec(substr($deviationbitstream, $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsforbytesdeviation'], $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsformsdeviation']));
$deviationbitstream = substr($deviationbitstream, $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsforbytesdeviation'] + $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsformsdeviation']);
$frame_arrayindex++;
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'SYTC' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'STC') {
// 4.8 STC Synchronised tempo codes
// There may only be one 'SYTC' frame in each tag
// <Header for 'Synchronised tempo codes', ID: 'SYTC'>
// Time stamp format $xx
// Tempo data <binary data>
// Where time stamp format is:
// $01 (32-bit value) MPEG frames from beginning of file
// $02 (32-bit value) milliseconds from beginning of file
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['timestampformat'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
while ($frame_offset < strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'])) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['tempo'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['tempo'] == 255) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['tempo'] += ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['timestamp'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4));
$frame_offset += 4;
$frame_arrayindex++;
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'USLT' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'ULT') {
// 4.9 ULT Unsynchronised lyric/text transcription
// There may be more than one 'Unsynchronised lyrics/text transcription' frame
// in each tag, but only one with the same language and content descriptor.
// <Header for 'Unsynchronised lyrics/text transcription', ID: 'USLT'>
// Text encoding $xx
// Language $xx xx xx
// Content descriptor <text string according to encoding> $00 (00)
// Lyrics/text <full text string according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_language = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3);
$frame_offset += 3;
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset);
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'];
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['language'] = $frame_language;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['languagename'] = LanguageLookup($frame_language, FALSE);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description;
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'], $frame_textencoding);
}
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'], $frame_textencoding);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'SYLT' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'SLT') {
// 4.10 SLT Synchronised lyric/text
// There may be more than one 'SYLT' frame in each tag,
// but only one with the same language and content descriptor.
// <Header for 'Synchronised lyrics/text', ID: 'SYLT'>
// Text encoding $xx
// Language $xx xx xx
// Time stamp format $xx
// $01 (32-bit value) MPEG frames from beginning of file
// $02 (32-bit value) milliseconds from beginning of file
// Content type $xx
// Content descriptor <text string according to encoding> $00 (00)
// Terminated text to be synced (typically a syllable)
// Sync identifier (terminator to above string) $00 (00)
// Time stamp $xx (xx ...)
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_language = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3);
$frame_offset += 3;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['timestampformat'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['contenttypeid'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['contenttype'] = SYTLContentTypeLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['contenttypeid']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['language'] = $frame_language;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['languagename'] = LanguageLookup($frame_language, FALSE);
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$timestampindex = 0;
$frame_remainingdata = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
while (strlen($frame_remainingdata)) {
$frame_offset = 0;
$frame_terminatorpos = strpos($frame_remainingdata, TextEncodingLookup('terminator', $frame_textencoding));
if ($frame_terminatorpos === FALSE) {
$frame_remainingdata = '';
} else {
if (ord(substr($frame_remainingdata, $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']["{$timestampindex}"]['data'] = substr($frame_remainingdata, $frame_offset, $frame_terminatorpos - $frame_offset);
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']["{$timestampindex}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']["{$timestampindex}"]['data'], $frame_textencoding);
}
$frame_remainingdata = substr($frame_remainingdata, $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)));
if ($timestampindex == 0 && ord($frame_remainingdata[0]) != 0) {
// timestamp probably omitted for first data item
} else {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']["{$timestampindex}"]['timestamp'] = BigEndian2Int(substr($frame_remainingdata, 0, 4));
$frame_remainingdata = substr($frame_remainingdata, 4);
}
$timestampindex++;
}
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'COMM' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'COM') {
// 4.11 COM Comments
// There may be more than one comment frame in each tag,
// but only one with the same language and content descriptor.
// <Header for 'Comment', ID: 'COMM'>
// Text encoding $xx
// Language $xx xx xx
// Short content descrip. <text string according to encoding> $00 (00)
// The actual text <full text string according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_language = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3);
$frame_offset += 3;
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset);
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_text = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['language'] = $frame_language;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['languagename'] = LanguageLookup($frame_language, FALSE);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = $frame_text;
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding);
}
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidata'] = RoughTranslateUnicodeToASCII($frame_text, $frame_textencoding);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 4 && $frame_name == 'RVA2') {
// 4.11 RVA2 Relative volume adjustment (2) (ID3v2.4+ only)
// There may be more than one 'RVA2' frame in each tag,
// but only one with the same identification string
// <Header for 'Relative volume adjustment (2)', ID: 'RVA2'>
// Identification <text string> $00
// The 'identification' string is used to identify the situation and/or
// device where this adjustment should apply. The following is then
// repeated for every channel:
// Type of channel $xx
// Volume adjustment $xx xx
// Bits representing peak $xx
// Peak volume $xx (xx ...)
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0));
$frame_idstring = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], 0, $frame_terminatorpos);
if (ord($frame_idstring) === 0) {
$frame_idstring = '';
}
$frame_remainingdata = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(chr(0)));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_idstring;
while (strlen($frame_remainingdata)) {
$frame_offset = 0;
$frame_channeltypeid = substr($frame_remainingdata, $frame_offset++, 1);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['channeltypeid'] = $frame_channeltypeid;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['channeltype'] = RVA2ChannelTypeLookup($frame_channeltypeid);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['volumeadjust'] = BigEndian2Int(substr($frame_remainingdata, $frame_offset, 2)) - 0x7fff;
// 16-bit signed
$frame_offset += 2;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['bitspeakvolume'] = ord(substr($frame_remainingdata, $frame_offset++, 1));
$frame_bytespeakvolume = ceil($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_channeltypeid}"]['bitspeakvolume'] / 8);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['peakvolume'] = BigEndian2Int(substr($frame_remainingdata, $frame_offset, $frame_bytespeakvolume));
$frame_remainingdata = substr($frame_remainingdata, $frame_offset + $frame_bytespeakvolume);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]["{$frame_channeltypeid}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3 && $frame_name == 'RVAD' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'RVA') {
// 4.12 RVA Relative volume adjustment (ID3v2.2 only)
// There may only be one 'RVA' frame in each tag
// <Header for 'Relative volume adjustment', ID: 'RVA'>
// ID3v2.2 => Increment/decrement %000000ba
// ID3v2.3 => Increment/decrement %00fedcba
// Bits used for volume descr. $xx
// Relative volume change, right $xx xx (xx ...) // a
// Relative volume change, left $xx xx (xx ...) // b
// Peak volume right $xx xx (xx ...)
// Peak volume left $xx xx (xx ...)
// ID3v2.3 only, optional (not present in ID3v2.2):
// Relative volume change, right back $xx xx (xx ...) // c
// Relative volume change, left back $xx xx (xx ...) // d
// Peak volume right back $xx xx (xx ...)
// Peak volume left back $xx xx (xx ...)
// ID3v2.3 only, optional (not present in ID3v2.2):
// Relative volume change, center $xx xx (xx ...) // e
// Peak volume center $xx xx (xx ...)
// ID3v2.3 only, optional (not present in ID3v2.2):
// Relative volume change, bass $xx xx (xx ...) // f
// Peak volume bass $xx xx (xx ...)
$frame_offset = 0;
$frame_incrdecrflags = BigEndian2Bin(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['right'] = (bool) substr($frame_incrdecrflags, 6, 1);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['left'] = (bool) substr($frame_incrdecrflags, 7, 1);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsvolume'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_bytesvolume = ceil($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsvolume'] / 8);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['right'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['right'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['right'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['left'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['left'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['left'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['right'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['left'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
if (strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']) > 0) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['rightrear'] = (bool) substr($frame_incrdecrflags, 4, 1);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['leftrear'] = (bool) substr($frame_incrdecrflags, 5, 1);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['rightrear'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['rightrear'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['rightrear'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['leftrear'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['leftrear'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['leftrear'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['rightrear'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['leftrear'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
if (strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']) > 0) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['center'] = (bool) substr($frame_incrdecrflags, 3, 1);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['center'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['center'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['center'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['center'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
if (strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']) > 0) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['bass'] = (bool) substr($frame_incrdecrflags, 2, 1);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['bass'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['incdec']['bass'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['volumechange']['bass'] *= -1;
}
$frame_offset += $frame_bytesvolume;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakvolume']['bass'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesvolume));
$frame_offset += $frame_bytesvolume;
}
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 4 && $frame_name == 'EQU2') {
// 4.12 EQU2 Equalisation (2) (ID3v2.4+ only)
// There may be more than one 'EQU2' frame in each tag,
// but only one with the same identification string
// <Header of 'Equalisation (2)', ID: 'EQU2'>
// Interpolation method $xx
// $00 Band
// $01 Linear
// Identification <text string> $00
// The following is then repeated for every adjustment point
// Frequency $xx xx
// Volume adjustment $xx xx
$frame_offset = 0;
$frame_interpolationmethod = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_idstring = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_idstring) === 0) {
$frame_idstring = '';
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_idstring;
$frame_remainingdata = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(chr(0)));
while (strlen($frame_remainingdata)) {
$frame_frequency = BigEndian2Int(substr($frame_remainingdata, 0, 2)) / 2;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']["{$frame_frequency}"] = BigEndian2Int(substr($frame_remainingdata, 2, 2));
$frame_remainingdata = substr($frame_remainingdata, 4);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['interpolationmethod'] = $frame_interpolationmethod;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3 && $frame_name == 'EQUA' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'EQU') {
// 4.13 EQU Equalisation (ID3v2.2 only)
// There may only be one 'EQUA' frame in each tag
// <Header for 'Relative volume adjustment', ID: 'EQU'>
// Adjustment bits $xx
// This is followed by 2 bytes + ('adjustment bits' rounded up to the
// nearest byte) for every equalisation band in the following format,
// giving a frequency range of 0 - 32767Hz:
// Increment/decrement %x (MSB of the Frequency)
// Frequency (lower 15 bits)
// Adjustment $xx (xx ...)
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['adjustmentbits'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1);
$frame_adjustmentbytes = ceil($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['adjustmentbits'] / 8);
$frame_remainingdata = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
while (strlen($frame_remainingdata)) {
$frame_frequencystr = BigEndian2Bin(substr($frame_remainingdata, 0, 2));
$frame_incdec = (bool) substr($frame_frequencystr, 0, 1);
$frame_frequency = bindec(substr($frame_frequencystr, 1, 15));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_frequency}"]['incdec'] = $frame_incdec;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_frequency}"]['adjustment'] = BigEndian2Int(substr($frame_remainingdata, 2, $frame_adjustmentbytes));
if ($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_frequency}"]['incdec'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_frequency}"]['adjustment'] *= -1;
}
$frame_remainingdata = substr($frame_remainingdata, 2 + $frame_adjustmentbytes);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'RVRB' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'REV') {
// 4.14 REV Reverb
// There may only be one 'RVRB' frame in each tag.
// <Header for 'Reverb', ID: 'RVRB'>
// Reverb left (ms) $xx xx
// Reverb right (ms) $xx xx
// Reverb bounces, left $xx
// Reverb bounces, right $xx
// Reverb feedback, left to left $xx
// Reverb feedback, left to right $xx
// Reverb feedback, right to right $xx
// Reverb feedback, right to left $xx
// Premix left to right $xx
// Premix right to left $xx
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['left'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2));
$frame_offset += 2;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['right'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2));
$frame_offset += 2;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bouncesL'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bouncesR'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['feedbackLL'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['feedbackLR'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['feedbackRR'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['feedbackRL'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['premixLR'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['premixRL'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'APIC' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'PIC') {
// 4.15 PIC Attached picture
// There may be several pictures attached to one file,
// each in their individual 'APIC' frame, but only one
// with the same content descriptor
// <Header for 'Attached picture', ID: 'APIC'>
// Text encoding $xx
// ID3v2.3+ => MIME type <text string> $00
// ID3v2.2 => Image format $xx xx xx
// Picture type $xx
// Description <text string according to encoding> $00 (00)
// Picture data <binary data>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2) {
$frame_imagetype = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3);
if (strtolower($frame_imagetype) == 'ima') {
// complete hack for mp3Rage (www.chaoticsoftware.com) that puts ID3v2.3-formatted
// MIME type instead of 3-char ID3v2.2-format image type (thanks xbhoff@pacbell.net)
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_mimetype = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_mimetype) === 0) {
$frame_mimetype = '';
}
$frame_imagetype = strtoupper(str_replace('image/', '', strtolower($frame_mimetype)));
if ($frame_imagetype == 'JPEG') {
$frame_imagetype = 'JPG';
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
} else {
$frame_offset += 3;
}
}
if ($MP3fileInfo['id3']['id3v2']['majorversion'] > 2) {
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_mimetype = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_mimetype) === 0) {
$frame_mimetype = '';
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
}
$frame_picturetype = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset);
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['imagetype'] = $frame_imagetype;
} else {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['mime'] = $frame_mimetype;
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['picturetypeid'] = $frame_picturetype;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['picturetype'] = APICPictureTypeLookup($frame_picturetype);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description;
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)));
include_once GETID3_INCLUDEPATH . 'getid3.getimagesize.php';
$imagechunkcheck = GetDataImageSize($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']);
if ($imagechunkcheck[2] >= 1 && $imagechunkcheck[2] <= 3) {
$imagetypes = array(1 => 'image/gif', 2 => 'image/jpeg', 3 => 'image/png');
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['image_mime'] = $imagetypes["{$imagechunkcheck[2]}"];
if ($imagechunkcheck[0]) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['image_width'] = $imagechunkcheck[0];
}
if ($imagechunkcheck[1]) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['image_height'] = $imagechunkcheck[1];
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['image_bytes'] = strlen($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data']);
//$MP3fileInfo['id3']['id3v2']["$frame_name"]["$frame_arrayindex"]['image_offset'] = $MP3fileInfo['id3']['id3v2']["$frame_name"]['dataoffset'] + $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)) + ID3v2HeaderLength($MP3fileInfo['id3']['id3v2']['majorversion']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'GEOB' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'GEO') {
// 4.16 GEO General encapsulated object
// There may be more than one 'GEOB' frame in each tag,
// but only one with the same content descriptor
// <Header for 'General encapsulated object', ID: 'GEOB'>
// Text encoding $xx
// MIME type <text string> $00
// Filename <text string according to encoding> $00 (00)
// Content description <text string according to encoding> $00 (00)
// Encapsulated object <binary data>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_mimetype = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_mimetype) === 0) {
$frame_mimetype = '';
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset);
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_filename = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_filename) === 0) {
$frame_filename = '';
}
$frame_offset = $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset);
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_offset = $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['objectdata'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['mime'] = $frame_mimetype;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['filename'] = $frame_filename;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description;
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
if (!isset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression']) || $MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags']['compression'] === FALSE) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding);
}
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'PCNT' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'CNT') {
// 4.17 CNT Play counter
// There may only be one 'PCNT' frame in each tag.
// When the counter reaches all one's, one byte is inserted in
// front of the counter thus making the counter eight bits bigger
// <Header for 'Play counter', ID: 'PCNT'>
// Counter $xx xx xx xx (xx ...)
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = BigEndian2Int($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'POPM' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'POP') {
// 4.18 POP Popularimeter
// There may be more than one 'POPM' frame in each tag,
// but only one with the same email address
// <Header for 'Popularimeter', ID: 'POPM'>
// Email to user <text string> $00
// Rating $xx
// Counter $xx xx xx xx (xx ...)
$frame_offset = 0;
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_emailaddress = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_emailaddress) === 0) {
$frame_emailaddress = '';
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$frame_rating = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['email'] = $frame_emailaddress;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['rating'] = $frame_rating;
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'RBUF' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'BUF') {
// 4.19 BUF Recommended buffer size
// There may only be one 'RBUF' frame in each tag
// <Header for 'Recommended buffer size', ID: 'RBUF'>
// Buffer size $xx xx xx
// Embedded info flag %0000000x
// Offset to next tag $xx xx xx xx
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['buffersize'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3));
$frame_offset += 3;
$frame_embeddedinfoflags = BigEndian2Bin(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']['embededinfo'] = (bool) substr($frame_embeddedinfoflags, 7, 1);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['nexttagoffset'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'CRM') {
// 4.20 Encrypted meta frame (ID3v2.2 only)
// There may be more than one 'CRM' frame in a tag,
// but only one with the same 'owner identifier'
// <Header for 'Encrypted meta frame', ID: 'CRM'>
// Owner identifier <textstring> $00 (00)
// Content/explanation <textstring> $00 (00)
// Encrypted datablock <binary data>
$frame_offset = 0;
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_ownerid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_ownerid) === 0) {
$frame_ownerid = count($MP3fileInfo['id3']['id3v2']["{$frame_name}"]) - 1;
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_ownerid;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'AENC' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'CRA') {
// 4.21 CRA Audio encryption
// There may be more than one 'AENC' frames in a tag,
// but only one with the same 'Owner identifier'
// <Header for 'Audio encryption', ID: 'AENC'>
// Owner identifier <text string> $00
// Preview start $xx xx
// Preview length $xx xx
// Encryption info <binary data>
$frame_offset = 0;
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_ownerid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_ownerid) === 0) {
$frame_ownerid == '';
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_ownerid;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['previewstart'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2));
$frame_offset += 2;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['previewlength'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2));
$frame_offset += 2;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encryptioninfo'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_ownerid}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'LINK' || $MP3fileInfo['id3']['id3v2']['majorversion'] == 2 && $frame_name == 'LNK') {
// 4.22 LNK Linked information
// There may be more than one 'LINK' frame in a tag,
// but only one with the same contents
// <Header for 'Linked information', ID: 'LINK'>
// ID3v2.3+ => Frame identifier $xx xx xx xx
// ID3v2.2 => Frame identifier $xx xx xx
// URL <text string> $00
// ID and additional data <text string(s)>
$frame_offset = 0;
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['frameid'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3);
$frame_offset += 3;
} else {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['frameid'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4);
$frame_offset += 4;
}
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_url = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_url) === 0) {
$frame_url = '';
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['url'] = $frame_url;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['additionaldata'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'POSS') {
// 4.21 POSS Position synchronisation frame (ID3v2.3+ only)
// There may only be one 'POSS' frame in each tag
// <Head for 'Position synchronisation', ID: 'POSS'>
// Time stamp format $xx
// Position $xx (xx ...)
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['timestampformat'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['position'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'USER') {
// 4.22 USER Terms of use (ID3v2.3+ only)
// There may be more than one 'Terms of use' frame in a tag,
// but only one with the same 'Language'
// <Header for 'Terms of use frame', ID: 'USER'>
// Text encoding $xx
// Language $xx xx xx
// The actual text <text string according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_language = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 3);
$frame_offset += 3;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['language'] = $frame_language;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['languagename'] = LanguageLookup($frame_language, FALSE);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
if (!$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['flags']['compression']) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['asciidata'] = RoughTranslateUnicodeToASCII($MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['data'], $frame_textencoding);
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_language}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'OWNE') {
// 4.23 OWNE Ownership frame (ID3v2.3+ only)
// There may only be one 'OWNE' frame in a tag
// <Header for 'Ownership frame', ID: 'OWNE'>
// Text encoding $xx
// Price paid <text string> $00
// Date of purch. <text string>
// Seller <text string according to encoding>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_pricepaid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['pricepaid']['currencyid'] = substr($frame_pricepaid, 0, 3);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['pricepaid']['currency'] = LookupCurrency($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['pricepaid']['currencyid'], 'units');
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['pricepaid']['value'] = substr($frame_pricepaid, 3);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedate'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 8);
if (!IsValidDateStampString($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedate'])) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedateunix'] = mktime(0, 0, 0, substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedate'], 4, 2), substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedate'], 6, 2), substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['purchasedate'], 0, 4));
}
$frame_offset += 8;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['seller'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'COMR') {
// 4.24 COMR Commercial frame (ID3v2.3+ only)
// There may be more than one 'commercial frame' in a tag,
// but no two may be identical
// <Header for 'Commercial frame', ID: 'COMR'>
// Text encoding $xx
// Price string <text string> $00
// Valid until <text string>
// Contact URL <text string> $00
// Received as $xx
// Name of seller <text string according to encoding> $00 (00)
// Description <text string according to encoding> $00 (00)
// Picture MIME type <string> $00
// Seller logo <binary data>
$frame_offset = 0;
$frame_textencoding = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_pricestring = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$frame_rawpricearray = explode('/', $frame_pricestring);
foreach ($frame_rawpricearray as $key => $val) {
$frame_currencyid = substr($val, 0, 3);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['price']["{$frame_currencyid}"]['currency'] = LookupCurrency($frame_currencyid, 'units');
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['price']["{$frame_currencyid}"]['value'] = substr($val, 3);
}
$frame_datestring = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 8);
$frame_offset += 8;
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_contacturl = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$frame_receivedasid = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset);
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_sellername = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_sellername) === 0) {
$frame_sellername = '';
}
$frame_offset = $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], TextEncodingLookup('terminator', $frame_textencoding), $frame_offset);
if (ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding)), 1)) === 0) {
$frame_terminatorpos++;
// strpos() fooled because 2nd byte of Unicode chars are often 0x00
}
$frame_description = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_description) === 0) {
$frame_description = '';
}
$frame_offset = $frame_terminatorpos + strlen(TextEncodingLookup('terminator', $frame_textencoding));
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_mimetype = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$frame_sellerlogo = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encodingid'] = $frame_textencoding;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['encoding'] = TextEncodingLookup('encoding', $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['pricevaliduntil'] = $frame_datestring;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['contacturl'] = $frame_contacturl;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['receivedasid'] = $frame_receivedasid;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['receivedas'] = COMRReceivedAsLookup($frame_receivedasid);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['sellername'] = $frame_sellername;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciisellername'] = RoughTranslateUnicodeToASCII($frame_sellername, $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['description'] = $frame_description;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['asciidescription'] = RoughTranslateUnicodeToASCII($frame_description, $frame_textencoding);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['mime'] = $frame_mimetype;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['logo'] = $frame_sellerlogo;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'ENCR') {
// 4.25 ENCR Encryption method registration (ID3v2.3+ only)
// There may be several 'ENCR' frames in a tag,
// but only one containing the same symbol
// and only one containing the same owner identifier
// <Header for 'Encryption method registration', ID: 'ENCR'>
// Owner identifier <text string> $00
// Method symbol $xx
// Encryption data <binary data>
$frame_offset = 0;
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_ownerid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_ownerid) === 0) {
$frame_ownerid = '';
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_ownerid;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['methodsymbol'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'GRID') {
// 4.26 GRID Group identification registration (ID3v2.3+ only)
// There may be several 'GRID' frames in a tag,
// but only one containing the same symbol
// and only one containing the same owner identifier
// <Header for 'Group ID registration', ID: 'GRID'>
// Owner identifier <text string> $00
// Group symbol $xx
// Group dependent data <binary data>
$frame_offset = 0;
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_ownerid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_ownerid) === 0) {
$frame_ownerid = '';
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_ownerid;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['groupsymbol'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'PRIV') {
// 4.27 PRIV Private frame (ID3v2.3+ only)
// The tag may contain more than one 'PRIV' frame
// but only with different contents
// <Header for 'Private frame', ID: 'PRIV'>
// Owner identifier <text string> $00
// The private data <binary data>
$frame_offset = 0;
$frame_terminatorpos = strpos($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], chr(0), $frame_offset);
$frame_ownerid = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_terminatorpos - $frame_offset);
if (ord($frame_ownerid) === 0) {
$frame_ownerid = '';
}
$frame_offset = $frame_terminatorpos + strlen(chr(0));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['ownerid'] = $frame_ownerid;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 4 && $frame_name == 'SIGN') {
// 4.28 SIGN Signature frame (ID3v2.4+ only)
// There may be more than one 'signature frame' in a tag,
// but no two may be identical
// <Header for 'Signature frame', ID: 'SIGN'>
// Group symbol $xx
// Signature <binary data>
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['groupsymbol'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['data'] = substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['flags'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags'];
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['flags']);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['datalength'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]["{$frame_arrayindex}"]['dataoffset'] = $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'];
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 4 && $frame_name == 'SEEK') {
// 4.29 SEEK Seek frame (ID3v2.4+ only)
// There may only be one 'seek frame' in a tag
// <Header for 'Seek frame', ID: 'SEEK'>
// Minimum offset to next tag $xx xx xx xx
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 4 && $frame_name == 'ASPI') {
// 4.30 ASPI Audio seek point index (ID3v2.4+ only)
// There may only be one 'audio seek point index' frame in a tag
// <Header for 'Seek Point Index', ID: 'ASPI'>
// Indexed data start (S) $xx xx xx xx
// Indexed data length (L) $xx xx xx xx
// Number of index points (N) $xx xx
// Bits per index point (b) $xx
// Then for every index point the following data is included:
// Fraction at index (Fi) $xx (xx)
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datastart'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4));
$frame_offset += 4;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['indexeddatalength'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4));
$frame_offset += 4;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['indexpoints'] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2));
$frame_offset += 2;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsperpoint'] = ord(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset++, 1));
$frame_bytesperpoint = ceil($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['bitsperpoint'] / 8);
for ($i = 0; $i < $frame_indexpoints; $i++) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['indexes']["{$i}"] = BigEndian2Int(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, $frame_bytesperpoint));
$frame_offset += $frame_bytesperpoint;
}
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] >= 3 && $frame_name == 'RGAD') {
// Replay Gain Adjustment
// http://privatewww.essex.ac.uk/~djmrob/replaygain/file_format_id3v2.html
// There may only be one 'RGAD' frame in a tag
// <Header for 'Replay Gain Adjustment', ID: 'RGAD'>
// Peak Amplitude $xx $xx $xx $xx
// Radio Replay Gain Adjustment %aaabbbcd %dddddddd
// Audiophile Replay Gain Adjustment %aaabbbcd %dddddddd
// a - name code
// b - originator code
// c - sign bit
// d - replay gain adjustment
$frame_offset = 0;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['peakamplitude'] = BigEndian2Float(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 4));
$frame_offset += 4;
$radioadjustment = Dec2Bin(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2));
$frame_offset += 2;
$audiophileadjustment = Dec2Bin(substr($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'], $frame_offset, 2));
$frame_offset += 2;
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['name'] = Bin2Dec(substr($radioadjustment, 0, 3));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['originator'] = Bin2Dec(substr($radioadjustment, 3, 3));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['signbit'] = Bin2Dec(substr($radioadjustment, 6, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['adjustment'] = Bin2Dec(substr($radioadjustment, 7, 9));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['name'] = Bin2Dec(substr($audiophileadjustment, 0, 3));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['originator'] = Bin2Dec(substr($audiophileadjustment, 3, 3));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['signbit'] = Bin2Dec(substr($audiophileadjustment, 6, 1));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['adjustment'] = Bin2Dec(substr($audiophileadjustment, 7, 9));
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['radio']['name'] = RGADnameLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['name']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['radio']['originator'] = RGADoriginatorLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['originator']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['radio']['adjustment'] = RGADadjustmentLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['adjustment'], $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['radio']['signbit']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['audiophile']['name'] = RGADnameLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['name']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['audiophile']['originator'] = RGADoriginatorLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['originator']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['audiophile']['adjustment'] = RGADadjustmentLookup($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['adjustment'], $MP3fileInfo['id3']['id3v2']["{$frame_name}"]['raw']['audiophile']['signbit']);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['framenamelong'] = FrameNameLongLookup($frame_name);
unset($MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data']);
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
return TRUE;
}
} else {
if ($id3info['id3']['id3v2']['majorversion'] > 2) {
$frame_header = substr($framedata, 0, 10);
// take next 10 bytes for header
$framedata = substr($framedata, 10);
// and leave the rest in $framedata
$frame_name = substr($frame_header, 0, 4);
if ($id3info['id3']['id3v2']['majorversion'] == 3) {
$frame_size = BigEndian2Int(substr($frame_header, 4, 4), 0);
// 32-bit integer
} else {
// ID3v2.4+
$frame_size = BigEndian2Int(substr($frame_header, 4, 4), 1);
// 32-bit synchsafe integer (28-bit value)
}
$frame_flags = BigEndian2Bin(substr($frame_header, 8, 2));
}
}
if ($frame_size <= strlen($framedata) && IsValidID3v2FrameName($frame_name, $id3info['id3']['id3v2']['majorversion'])) {
$id3info['id3']['id3v2']["{$frame_name}"]['data'] = substr($framedata, 0, $frame_size);
// in getid3.frames.php - this function does all the FrameID-level parsing
ID3v2FrameProcessing($frame_name, $frame_flags, $id3info);
if (isset($id3info['id3']['id3v2']['APIC'][0]['data']) && strlen($id3info['id3']['id3v2']['APIC'][0]['data']) > 0) {
if (isset($rawdata)) {
echo $id3info['id3']['id3v2']['APIC'][0]['data'];
} else {
include_once GETID3_INCLUDEPATH . 'getid3.getimagesize.php';
$imagechunkcheck = GetDataImageSize($id3info['id3']['id3v2']['APIC'][0]['data']);
switch ($imagechunkcheck[2]) {
case 1:
header('Content-type: image/gif');
function BigEndian2Float($byteword)
{
// ANSI/IEEE Standard 754-1985, Standard for Binary Floating Point Arithmetic
// http://www.psc.edu/general/software/packages/ieee/ieee.html
// http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee.html
$bitword = BigEndian2Bin($byteword);
$signbit = $bitword[0];
if (strlen($byteword) == 4) {
// 32-bit DWORD
$exponentbits = 8;
$fractionbits = 23;
} else {
if (strlen($byteword) == 8) {
// 64-bit QWORD
$exponentbits = 11;
$fractionbits = 52;
} else {
return FALSE;
}
}
$exponentstring = substr($bitword, 1, $exponentbits);
$fractionstring = substr($bitword, 9, $fractionbits);
$exponent = Bin2Dec($exponentstring);
$fraction = Bin2Dec($fractionstring);
if ($exponent == pow(2, $exponentbits) - 1 && $fraction != 0) {
// Not a Number
$floatvalue = FALSE;
} else {
if ($exponent == pow(2, $exponentbits) - 1 && $fraction == 0) {
if ($signbit == '1') {
$floatvalue = '-infinity';
} else {
$floatvalue = '+infinity';
}
} else {
if ($exponent == 0 && $fraction == 0) {
if ($signbit == '1') {
$floatvalue = -0;
} else {
$floatvalue = 0;
}
$floatvalue = $signbit ? 0 : -0;
} else {
if ($exponent == 0 && $fraction != 0) {
// These are 'unnormalized' values
$floatvalue = pow(2, -1 * (pow(2, $exponentbits - 1) - 2)) * DecimalBinary2Float($fractionstring);
if ($signbit == '1') {
$floatvalue *= -1;
}
} else {
if ($exponent != 0) {
$floatvalue = pow(2, $exponent - (pow(2, $exponentbits - 1) - 1)) * (1 + DecimalBinary2Float($fractionstring));
if ($signbit == '1') {
$floatvalue *= -1;
}
}
}
}
}
}
return (double) $floatvalue;
}
function getMPEGHeaderFilepointer(&$fd, &$MP3fileInfo)
{
// Start code 32 bits
// horizontal frame size 12 bits
// vertical frame size 12 bits
// pixel aspect ratio 4 bits
// frame rate 4 bits
// bitrate 18 bits
// marker bit 1 bit
// VBV buffer size 10 bits
// constrained parameter flag 1 bit
// intra quant. matrix flag 1 bit
// intra quant. matrix values 512 bits (present if matrix flag == 1)
// non-intra quant. matrix flag 1 bit
// non-intra quant. matrix values 512 bits (present if matrix flag == 1)
if (!$fd) {
$MP3fileInfo['error'] .= "\n" . 'Could not open file';
return FALSE;
} else {
// MPEG video information is found as $00 $00 $01 $B3
$matching_pattern = chr(0x0) . chr(0x0) . chr(0x1) . chr(0xb3);
rewind($fd);
$MPEGvideoHeader = fread($fd, FREAD_BUFFER_SIZE);
$offset = 0;
while (substr($MPEGvideoHeader, $offset++, 4) !== $matching_pattern) {
if ($offset >= strlen($MPEGvideoHeader) - 12) {
$MPEGvideoHeader .= fread($fd, FREAD_BUFFER_SIZE);
$MPEGvideoHeader = substr($MPEGvideoHeader, $offset);
$offset = 0;
if (strlen($MPEGvideoHeader) < 12) {
$MP3fileInfo['error'] = "\n" . 'Could not find start of video block before end of file';
return FALSE;
// return array('error'=>'Could not find start of video block before end of file');
} else {
if (ftell($fd) >= 100000) {
$MP3fileInfo['error'] = "\n" . 'Could not find start of video block in the first 100,000 bytes (this might not be an MPEG-video file?)';
unset($MP3fileInfo['fileformat']);
return FALSE;
// return array('error'=>"\n".'Could not find start of video block in the first 100,000 bytes (this might not be an MPEG-video file?)', 'fileformat'=>'');
}
}
}
}
$offset += strlen($matching_pattern) - 1;
$framesizes = BigEndian2Bin(substr($MPEGvideoHeader, $offset, 3));
$offset += 3;
$aspect_framerate = BigEndian2Bin(substr($MPEGvideoHeader, $offset, 1));
$offset += 1;
$assortedinformation = BigEndian2Bin(substr($MPEGvideoHeader, $offset, 4));
$offset += 4;
$MP3fileInfo['mpeg']['video']['raw']['framesize_horizontal'] = bindec(substr($framesizes, 0, 12));
// 12 bits for horizontal frame size
$MP3fileInfo['mpeg']['video']['raw']['framesize_vertical'] = bindec(substr($framesizes, 12, 12));
// 12 bits for vertical frame size
$MP3fileInfo['mpeg']['video']['framesize_horizontal'] = $MP3fileInfo['mpeg']['video']['raw']['framesize_horizontal'];
$MP3fileInfo['mpeg']['video']['framesize_vertical'] = $MP3fileInfo['mpeg']['video']['raw']['framesize_vertical'];
$MP3fileInfo['mpeg']['video']['raw']['pixel_aspect_ratio'] = bindec(substr($aspect_framerate, 0, 4));
$MP3fileInfo['mpeg']['video']['raw']['frame_rate'] = bindec(substr($aspect_framerate, 4, 4));
$MP3fileInfo['mpeg']['video']['pixel_aspect_ratio'] = MPEGvideoAspectRatioLookup($MP3fileInfo['mpeg']['video']['raw']['pixel_aspect_ratio']);
$MP3fileInfo['mpeg']['video']['pixel_aspect_ratio_text'] = MPEGvideoAspectRatioTextLookup($MP3fileInfo['mpeg']['video']['raw']['pixel_aspect_ratio']);
$MP3fileInfo['mpeg']['video']['frame_rate'] = MPEGvideoFramerateLookup($MP3fileInfo['mpeg']['video']['raw']['frame_rate']);
$MP3fileInfo['mpeg']['video']['raw']['bitrate'] = bindec(substr($assortedinformation, 0, 18));
if ($MP3fileInfo['mpeg']['video']['raw']['bitrate'] == 0x3ffff) {
// 18 set bits
$MP3fileInfo['mpeg']['video']['bitrate_type'] = 'variable';
} else {
$MP3fileInfo['mpeg']['video']['bitrate_type'] = 'constant';
$MP3fileInfo['mpeg']['video']['bitrate_bps'] = $MP3fileInfo['mpeg']['video']['raw']['bitrate'] * 400;
//$MP3fileInfo['mpeg']['video']['bitrate_kbytes'] = $MP3fileInfo['mpeg']['video']['bitrate_bps'] / 8192;
}
$MP3fileInfo['mpeg']['video']['raw']['marker_bit'] = bindec(substr($assortedinformation, 18, 1));
$MP3fileInfo['mpeg']['video']['raw']['vbv_buffer_size'] = bindec(substr($assortedinformation, 19, 10));
$MP3fileInfo['mpeg']['video']['raw']['constrained_param_flag'] = bindec(substr($assortedinformation, 29, 1));
$MP3fileInfo['mpeg']['video']['raw']['intra_quant_flag'] = bindec(substr($assortedinformation, 30, 1));
return TRUE;
}
}
function FLACparseSTREAMINFO($METAdataBlockData, &$ThisFileInfo)
{
$offset = 0;
$ThisFileInfo['flac']['STREAMINFO']['min_block_size'] = BigEndian2Int(substr($METAdataBlockData, $offset, 2));
$offset += 2;
$ThisFileInfo['flac']['STREAMINFO']['max_block_size'] = BigEndian2Int(substr($METAdataBlockData, $offset, 2));
$offset += 2;
$ThisFileInfo['flac']['STREAMINFO']['min_frame_size'] = BigEndian2Int(substr($METAdataBlockData, $offset, 3));
$offset += 3;
$ThisFileInfo['flac']['STREAMINFO']['max_frame_size'] = BigEndian2Int(substr($METAdataBlockData, $offset, 3));
$offset += 3;
$SampleRateChannelsSampleBitsStreamSamples = BigEndian2Bin(substr($METAdataBlockData, $offset, 8));
$ThisFileInfo['flac']['STREAMINFO']['sample_rate'] = Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 0, 20));
$ThisFileInfo['flac']['STREAMINFO']['channels'] = Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 20, 3)) + 1;
$ThisFileInfo['flac']['STREAMINFO']['bits_per_sample'] = Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 23, 5)) + 1;
$ThisFileInfo['flac']['STREAMINFO']['samples_stream'] = Bin2Dec(substr($SampleRateChannelsSampleBitsStreamSamples, 28, 36));
$offset += 8;
$ThisFileInfo['flac']['STREAMINFO']['audio_signature'] = substr($METAdataBlockData, $offset, 16);
$offset += 16;
if (!empty($ThisFileInfo['flac']['STREAMINFO']['sample_rate'])) {
$ThisFileInfo['audio']['bitrate_mode'] = 'vbr';
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['flac']['STREAMINFO']['sample_rate'];
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['flac']['STREAMINFO']['channels'];
$ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['flac']['STREAMINFO']['bits_per_sample'];
$ThisFileInfo['playtime_seconds'] = $ThisFileInfo['flac']['STREAMINFO']['samples_stream'] / $ThisFileInfo['flac']['STREAMINFO']['sample_rate'];
$ThisFileInfo['audio']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['playtime_seconds'];
} else {
$ThisFileInfo['error'] .= "\n" . 'Corrupt METAdata block: STREAMINFO';
return false;
}
return true;
}
function ParseOggPageHeader(&$fd)
{
// http://xiph.org/ogg/vorbis/doc/framing.html
$basefileoffset = ftell($fd);
// where we started from in the file
$filedata = fread($fd, FREAD_BUFFER_SIZE);
$filedataoffset = 0;
while (substr($filedata, $filedataoffset++, 4) != 'OggS') {
if (ftell($fd) - $basefileoffset >= 10000) {
// should be found before here
return FALSE;
}
if (strlen($filedata) < 1024) {
if (feof($fd) || ($filedata .= fread($fd, FREAD_BUFFER_SIZE)) === FALSE) {
// get some more data, unless eof, in which case fail
return FALSE;
}
}
}
$filedataoffset += strlen('OggS') - 1;
// page, delimited by 'OggS'
$stream_structure_version = ord(substr($filedata, $filedataoffset++, 1));
$header_type_flag = BigEndian2Bin(substr($filedata, $filedataoffset++, 1));
$header_type_flag_fresh = IntString2Bool($header_type_flag[5]);
// fresh packet
$header_type_flag_bos = IntString2Bool($header_type_flag[6]);
// first page of logical bitstream (bos)
$header_type_flag_eos = IntString2Bool($header_type_flag[7]);
// last page of logical bitstream (eos)
$pcm_absolute_position = LittleEndian2Int(substr($filedata, $filedataoffset, 8));
$filedataoffset += 8;
$stream_serial_number = LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$page_seq_no = LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$page_checksum = LittleEndian2Int(substr($filedata, $filedataoffset, 4));
$filedataoffset += 4;
$page_segments = LittleEndian2Int(substr($filedata, $filedataoffset, 1));
$filedataoffset += 1;
for ($i = 0; $i < $page_segments; $i++) {
$segment_table["{$i}"] = LittleEndian2Int(substr($filedata, $filedataoffset++, 1));
}
$packettype = ord(substr($filedata, $filedataoffset, 1));
$filedataoffset += 1;
$streamtype = substr($filedata, $filedataoffset, 6);
// hard-coded to 'vorbis'
$filedataoffset += 6;
fseek($fd, $filedataoffset + $basefileoffset, SEEK_SET);
$oggheader['packet_type'] = $packettype;
$oggheader['stream_type'] = $streamtype;
$oggheader['stream_structver'] = $stream_structure_version;
$oggheader['flag']['fresh'] = $header_type_flag_fresh;
$oggheader['flag']['bos'] = $header_type_flag_fresh;
$oggheader['flag']['eos'] = $header_type_flag_fresh;
$oggheader['pcm_abs_position'] = $pcm_absolute_position;
$oggheader['stream_serialno'] = $stream_serial_number;
$oggheader['page_seqno'] = $page_seq_no;
$oggheader['page_checksum'] = $page_checksum;
$oggheader['page_segments'] = $page_segments;
$oggheader['segment_table'] = $segment_table;
return $oggheader;
}
function GetAllMP3info($filename, $assumedFormat = '', $allowedFormats = array('zip', 'ogg', 'riff', 'sdss', 'mpeg', 'midi', 'image', 'mp3'))
{
include_once GETID3_INCLUDEPATH . 'getid3.lookup.php';
// Lookup tables
include_once GETID3_INCLUDEPATH . 'getid3.functions.php';
// Function library
include_once GETID3_INCLUDEPATH . 'getid3.getimagesize.php';
if (!file_exists($filename)) {
// this code segment is needed for the file browser demonstrated in check.php
// but may interfere with finding a filename that actually does contain apparently
// escaped characters (like "file\'name.mp3") and/or
// %xx-format characters (like "file%20name.mp3")
$filename = stripslashes($filename);
if (!file_exists($filename)) {
$filename = rawurldecode($filename);
}
}
$fp = @fopen($filename, 'rb');
$MP3fileInfo['getID3version'] = GETID3VERSION;
$MP3fileInfo['exist'] = (bool) $fp;
$MP3fileInfo['filename'] = basename($filename);
$MP3fileInfo['fileformat'] = '';
// filled in later
$MP3fileInfo['error'] = '';
// filled in later, unset if not used
if ($MP3fileInfo['exist']) {
if (strpos($filename, 'http://') !== FALSE || strpos($filename, 'ftp://') !== FALSE) {
// remote file - copy locally first and work from there
$localfilepointer = tmpfile();
while ($buffer = fread($fp, FREAD_BUFFER_SIZE)) {
$MP3fileInfo['filesize'] += fwrite($localfilepointer, $buffer);
}
fclose($fp);
} else {
clearstatcache();
$MP3fileInfo['filesize'] = filesize($filename);
$localfilepointer = $fp;
}
rewind($localfilepointer);
$formattest = fread($localfilepointer, FREAD_BUFFER_SIZE);
if (ParseAsThisFormat('zip', $assumedFormat, $allowedFormats, $formattest)) {
$MP3fileInfo['fileformat'] = 'zip';
include_once GETID3_INCLUDEPATH . 'getid3.zip.php';
getZipHeaderFilepointer($filename, $MP3fileInfo);
} else {
if (ParseAsThisFormat('ogg', $assumedFormat, $allowedFormats, $formattest)) {
$MP3fileInfo['fileformat'] = 'ogg';
include_once GETID3_INCLUDEPATH . 'getid3.ogg.php';
getOggHeaderFilepointer($localfilepointer, $MP3fileInfo);
} else {
if (ParseAsThisFormat('riff', $assumedFormat, $allowedFormats, $formattest) || ParseAsThisFormat('sdss', $assumedFormat, $allowedFormats, $formattest)) {
$MP3fileInfo['fileformat'] = 'riff';
include_once GETID3_INCLUDEPATH . 'getid3.riff.php';
getRIFFHeaderFilepointer($localfilepointer, $MP3fileInfo);
} else {
if (ParseAsThisFormat('mpeg', $assumedFormat, $allowedFormats, $formattest)) {
$MP3fileInfo['fileformat'] = 'mpg';
include_once GETID3_INCLUDEPATH . 'getid3.mpeg.php';
getMPEGHeaderFilepointer($localfilepointer, $MP3fileInfo);
} else {
if (ParseAsThisFormat('midi', $assumedFormat, $allowedFormats, $formattest)) {
$MP3fileInfo['fileformat'] = 'midi';
include_once GETID3_INCLUDEPATH . 'getid3.midi.php';
if ($assumedFormat === FALSE) {
// do not parse all MIDI tracks - much faster
getMIDIHeaderFilepointer($localfilepointer, $MP3fileInfo, FALSE);
} else {
getMIDIHeaderFilepointer($localfilepointer, $MP3fileInfo);
}
} else {
if (in_array('image', $allowedFormats) && ($assumedFormat == 'image' || ($imagechunkcheck = GetDataImageSize($formattest)) && $imagechunkcheck[2] >= 1 && $imagechunkcheck[2] <= 3)) {
if ($assumedFormat == 'image') {
$imagechunkcheck = GetDataImageSize($formattest);
}
$imagetypes = array(1 => 'gif', 2 => 'jpeg', 3 => 'png');
if (isset($imagechunkcheck[2]) && $imagechunkcheck[2] >= 1 && $imagechunkcheck[2] <= 3) {
$MP3fileInfo['fileformat'] = $imagetypes["{$imagechunkcheck[2]}"];
$MP3fileInfo["{$MP3fileInfo['fileformat']}"]['width'] = $imagechunkcheck[0];
$MP3fileInfo["{$MP3fileInfo['fileformat']}"]['height'] = $imagechunkcheck[1];
} else {
unset($MP3fileInfo['fileformat']);
$MP3fileInfo['error'] = "\n" . 'Not a supported image format';
}
} else {
if (in_array('mp3', $allowedFormats) && $allowedFormats !== FALSE && ($assumedFormat == 'mp3' || $assumedFormat == '' && (substr($formattest, 0, 3) == 'ID3' || substr(BigEndian2Bin(substr($formattest, 0, 2)), 0, 11) == '11111111111'))) {
// assume MP3 format
include_once GETID3_INCLUDEPATH . 'getid3.mp3.php';
getMP3headerFilepointer($localfilepointer, $MP3fileInfo);
if (!isset($MP3fileInfo['audiodataoffset'])) {
$MP3fileInfo['audiobytes'] = 0;
} else {
$MP3fileInfo['audiobytes'] = $MP3fileInfo['filesize'] - $MP3fileInfo['audiodataoffset'];
}
if (isset($MP3fileInfo['id3']['id3v1'])) {
$MP3fileInfo['audiobytes'] -= 128;
}
if (isset($mp3info['lyrics3']['raw']['lyrics3tagsize'])) {
$MP3fileInfo['audiobytes'] -= $mp3info['lyrics3']['raw']['lyrics3tagsize'];
}
if ($MP3fileInfo['audiobytes'] < 0) {
unset($MP3fileInfo['audiobytes']);
}
if (isset($MP3fileInfo['audiobytes']) && isset($MP3fileInfo['bitrate']) && $MP3fileInfo['bitrate'] > 0) {
$MP3fileInfo['playtime_seconds'] = $MP3fileInfo['audiobytes'] * 8 / $MP3fileInfo['bitrate'];
}
}
}
}
}
}
}
}
}
if (isset($MP3fileInfo['playtime_seconds']) && $MP3fileInfo['playtime_seconds'] > 0 && !isset($MP3fileInfo['playtime_string'])) {
$contentseconds = round(($MP3fileInfo['playtime_seconds'] / 60 - floor($MP3fileInfo['playtime_seconds'] / 60)) * 60);
$contentminutes = floor($MP3fileInfo['playtime_seconds'] / 60);
$MP3fileInfo['playtime_string'] = number_format($contentminutes) . ':' . str_pad($contentseconds, 2, 0, STR_PAD_LEFT);
}
if (isset($MP3fileInfo['error']) && !$MP3fileInfo['error']) {
unset($MP3fileInfo['error']);
}
if (isset($MP3fileInfo['fileformat']) && !$MP3fileInfo['fileformat']) {
unset($MP3fileInfo['fileformat']);
}
unset($SourceArrayKey);
if (isset($MP3fileInfo['id3']['id3v2'])) {
$SourceArrayKey = $MP3fileInfo['id3']['id3v2'];
} else {
if (isset($MP3fileInfo['id3']['id3v1'])) {
$SourceArrayKey = $MP3fileInfo['id3']['id3v1'];
} else {
if (isset($MP3fileInfo['ogg'])) {
$SourceArrayKey = $MP3fileInfo['ogg'];
} else {
if (isset($MP3fileInfo['RIFF'])) {
$SourceArrayKey = $MP3fileInfo['RIFF'];
}
}
}
}
if (isset($SourceArrayKey)) {
$handyaccesskeystocopy = array('title', 'artist', 'album', 'year', 'genre', 'comment', 'track');
foreach ($handyaccesskeystocopy as $keytocopy) {
if (isset($SourceArrayKey["{$keytocopy}"])) {
$MP3fileInfo["{$keytocopy}"] = $SourceArrayKey["{$keytocopy}"];
}
}
}
if (isset($fp) && is_resource($fp) && get_resource_type($fp) == 'file') {
fclose($fp);
}
if (isset($localfilepointer) && is_resource($localfilepointer) && get_resource_type($localfilepointer) == 'file') {
fclose($localfilepointer);
}
if (isset($fp)) {
unset($fp);
}
if (isset($localfilepointer)) {
unset($localfilepointer);
}
return $MP3fileInfo;
}
function getID3v2Filepointer(&$fd, &$ThisFileInfo)
{
// Overall tag structure:
// +-----------------------------+
// | Header (10 bytes) |
// +-----------------------------+
// | Extended Header |
// | (variable length, OPTIONAL) |
// +-----------------------------+
// | Frames (variable length) |
// +-----------------------------+
// | Padding |
// | (variable length, OPTIONAL) |
// +-----------------------------+
// | Footer (10 bytes, OPTIONAL) |
// +-----------------------------+
// Header
// ID3v2/file identifier "ID3"
// ID3v2 version $04 00
// ID3v2 flags (%ab000000 in v2.2, %abc00000 in v2.3, %abcd0000 in v2.4.x)
// ID3v2 size 4 * %0xxxxxxx
rewind($fd);
$header = fread($fd, 10);
if (substr($header, 0, 3) == 'ID3') {
$ThisFileInfo['id3v2']['header'] = true;
$ThisFileInfo['id3v2']['majorversion'] = ord($header[3]);
$ThisFileInfo['id3v2']['minorversion'] = ord($header[4]);
} else {
return false;
}
if ($ThisFileInfo['id3v2']['majorversion'] > 4) {
// this script probably won't correctly parse ID3v2.5.x and above.
$ThisFileInfo['error'] .= "\n" . 'this script only parses up to ID3v2.4.x - this tag is ID3v2.' . $ThisFileInfo['id3v2']['majorversion'] . '.' . $ThisFileInfo['id3v2']['minorversion'];
return false;
}
$id3_flags = BigEndian2Bin($header[5]);
switch ($ThisFileInfo['id3v2']['majorversion']) {
case 2:
// %ab000000 in v2.2
$ThisFileInfo['id3v2']['flags']['unsynch'] = $id3_flags[0];
// a - Unsynchronisation
$ThisFileInfo['id3v2']['flags']['compression'] = $id3_flags[1];
// b - Compression
break;
case 3:
// %abc00000 in v2.3
$ThisFileInfo['id3v2']['flags']['unsynch'] = $id3_flags[0];
// a - Unsynchronisation
$ThisFileInfo['id3v2']['flags']['exthead'] = $id3_flags[1];
// b - Extended header
$ThisFileInfo['id3v2']['flags']['experim'] = $id3_flags[2];
// c - Experimental indicator
break;
case 4:
// %abcd0000 in v2.4
$ThisFileInfo['id3v2']['flags']['unsynch'] = $id3_flags[0];
// a - Unsynchronisation
$ThisFileInfo['id3v2']['flags']['exthead'] = $id3_flags[1];
// b - Extended header
$ThisFileInfo['id3v2']['flags']['experim'] = $id3_flags[2];
// c - Experimental indicator
$ThisFileInfo['id3v2']['flags']['isfooter'] = $id3_flags[3];
// d - Footer present
break;
}
$ThisFileInfo['id3v2']['headerlength'] = BigEndian2Int(substr($header, 6, 4), 1) + ID3v2HeaderLength($ThisFileInfo['id3v2']['majorversion']);
// Extended Header
if (isset($ThisFileInfo['id3v2']['flags']['exthead']) && $ThisFileInfo['id3v2']['flags']['exthead']) {
// Extended header size 4 * %0xxxxxxx
// Number of flag bytes $01
// Extended Flags $xx
// Where the 'Extended header size' is the size of the whole extended header, stored as a 32 bit synchsafe integer.
$extheader = fread($fd, 4);
$ThisFileInfo['id3v2']['extheaderlength'] = BigEndian2Int($extheader, 1);
// The extended flags field, with its size described by 'number of flag bytes', is defined as:
// %0bcd0000
// b - Tag is an update
// Flag data length $00
// c - CRC data present
// Flag data length $05
// Total frame CRC 5 * %0xxxxxxx
// d - Tag restrictions
// Flag data length $01
$extheaderflagbytes = fread($fd, 1);
$extheaderflags = fread($fd, $extheaderflagbytes);
$id3_exthead_flags = BigEndian2Bin(substr($header, 5, 1));
$ThisFileInfo['id3v2']['exthead_flags']['update'] = substr($id3_exthead_flags, 1, 1);
$ThisFileInfo['id3v2']['exthead_flags']['CRC'] = substr($id3_exthead_flags, 2, 1);
if ($ThisFileInfo['id3v2']['exthead_flags']['CRC']) {
$extheaderrawCRC = fread($fd, 5);
$ThisFileInfo['id3v2']['exthead_flags']['CRC'] = BigEndian2Int($extheaderrawCRC, 1);
}
$ThisFileInfo['id3v2']['exthead_flags']['restrictions'] = substr($id3_exthead_flags, 3, 1);
if ($ThisFileInfo['id3v2']['exthead_flags']['restrictions']) {
// Restrictions %ppqrrstt
$extheaderrawrestrictions = fread($fd, 1);
$ThisFileInfo['id3v2']['exthead_flags']['restrictions_tagsize'] = (bindec('11000000') & ord($extheaderrawrestrictions)) >> 6;
// p - Tag size restrictions
$ThisFileInfo['id3v2']['exthead_flags']['restrictions_textenc'] = (bindec('00100000') & ord($extheaderrawrestrictions)) >> 5;
// q - Text encoding restrictions
$ThisFileInfo['id3v2']['exthead_flags']['restrictions_textsize'] = (bindec('00011000') & ord($extheaderrawrestrictions)) >> 3;
// r - Text fields size restrictions
$ThisFileInfo['id3v2']['exthead_flags']['restrictions_imgenc'] = (bindec('00000100') & ord($extheaderrawrestrictions)) >> 2;
// s - Image encoding restrictions
$ThisFileInfo['id3v2']['exthead_flags']['restrictions_imgsize'] = (bindec('00000011') & ord($extheaderrawrestrictions)) >> 0;
// t - Image size restrictions
}
}
// end extended header
// Frames
// All ID3v2 frames consists of one frame header followed by one or more
// fields containing the actual information. The header is always 10
// bytes and laid out as follows:
//
// Frame ID $xx xx xx xx (four characters)
// Size 4 * %0xxxxxxx
// Flags $xx xx
$sizeofframes = $ThisFileInfo['id3v2']['headerlength'] - ID3v2HeaderLength($ThisFileInfo['id3v2']['majorversion']);
if (isset($ThisFileInfo['id3v2']['extheaderlength'])) {
$sizeofframes -= $ThisFileInfo['id3v2']['extheaderlength'];
}
if (isset($ThisFileInfo['id3v2']['flags']['isfooter']) && $ThisFileInfo['id3v2']['flags']['isfooter']) {
$sizeofframes -= 10;
// footer takes last 10 bytes of ID3v2 header, after frame data, before audio
}
if ($sizeofframes > 0) {
$framedata = fread($fd, $sizeofframes);
// read all frames from file into $framedata variable
// if entire frame data is unsynched, de-unsynch it now (ID3v2.3.x)
if (isset($ThisFileInfo['id3v2']['flags']['unsynch']) && $ThisFileInfo['id3v2']['flags']['unsynch'] && $ThisFileInfo['id3v2']['majorversion'] <= 3) {
$framedata = DeUnSynchronise($framedata);
}
// [in ID3v2.4.0] Unsynchronisation [S:6.1] is done on frame level, instead
// of on tag level, making it easier to skip frames, increasing the streamability
// of the tag. The unsynchronisation flag in the header [S:3.1] indicates that
// there exists an unsynchronised frame, while the new unsynchronisation flag in
// the frame header [S:4.1.2] indicates unsynchronisation.
$framedataoffset = 10;
// how many bytes into the stream - start from after the 10-byte header
while (isset($framedata) && strlen($framedata) > 0) {
// cycle through until no more frame data is left to parse
if (strlen($framedata) < ID3v2HeaderLength($ThisFileInfo['id3v2']['majorversion'])) {
// insufficient room left in ID3v2 header for actual data - must be padding
$ThisFileInfo['id3v2']['padding']['start'] = $framedataoffset;
$ThisFileInfo['id3v2']['padding']['length'] = strlen($framedata);
$ThisFileInfo['id3v2']['padding']['valid'] = true;
for ($i = 0; $i < $ThisFileInfo['id3v2']['padding']['length']; $i++) {
if (substr($framedata, $i, 1) != chr(0)) {
$ThisFileInfo['id3v2']['padding']['valid'] = false;
$ThisFileInfo['id3v2']['padding']['errorpos'] = $ThisFileInfo['id3v2']['padding']['start'] + $i;
$ThisFileInfo['warning'] .= "\n" . 'Invalid ID3v2 padding found at offset ' . $ThisFileInfo['id3v2']['padding']['errorpos'];
break;
}
}
break;
// skip rest of ID3v2 header
}
if ($ThisFileInfo['id3v2']['majorversion'] == 2) {
// Frame ID $xx xx xx (three characters)
// Size $xx xx xx (24-bit integer)
// Flags $xx xx
$frame_header = substr($framedata, 0, 6);
// take next 6 bytes for header
$framedata = substr($framedata, 6);
// and leave the rest in $framedata
$frame_name = substr($frame_header, 0, 3);
$frame_size = BigEndian2Int(substr($frame_header, 3, 3), 0);
$frame_flags = '';
// not used for anything, just to avoid E_NOTICEs
} elseif ($ThisFileInfo['id3v2']['majorversion'] > 2) {
// Frame ID $xx xx xx xx (four characters)
// Size $xx xx xx xx (32-bit integer in v2.3, 28-bit synchsafe in v2.4+)
// Flags $xx xx
$frame_header = substr($framedata, 0, 10);
// take next 10 bytes for header
$framedata = substr($framedata, 10);
// and leave the rest in $framedata
$frame_name = substr($frame_header, 0, 4);
if ($ThisFileInfo['id3v2']['majorversion'] == 3) {
$frame_size = BigEndian2Int(substr($frame_header, 4, 4), 0);
// 32-bit integer
} else {
// ID3v2.4+
$frame_size = BigEndian2Int(substr($frame_header, 4, 4), 1);
// 32-bit synchsafe integer (28-bit value)
}
if ($frame_size < strlen($framedata) + 4) {
$nextFrameID = substr($framedata, $frame_size, 4);
if (IsValidID3v2FrameName($nextFrameID, $ThisFileInfo['id3v2']['majorversion'])) {
// next frame is OK
} elseif ($frame_name == chr(0) . 'MP3' || $frame_name == chr(0) . chr(0) . 'MP' || $frame_name == ' MP3' || $frame_name == 'MP3e') {
// MP3ext known broken frames - "ok" for the purposes of this test
} elseif ($ThisFileInfo['id3v2']['majorversion'] == 4 && IsValidID3v2FrameName(substr($framedata, BigEndian2Int(substr($frame_header, 4, 4), 0), 4), 3)) {
$ThisFileInfo['warning'] .= "\n" . 'ID3v2 tag written as ID3v2.4, but with non-synchsafe integers (ID3v2.3 style). Older versions of Helium2 (www.helium2.com) is a known culprit of this. Tag has been parsed as ID3v2.3';
$ThisFileInfo['id3v2']['majorversion'] = 3;
$frame_size = BigEndian2Int(substr($frame_header, 4, 4), 0);
// 32-bit integer
}
}
$frame_flags = BigEndian2Bin(substr($frame_header, 8, 2));
}
if ($ThisFileInfo['id3v2']['majorversion'] == 2 && $frame_name == chr(0) . chr(0) . chr(0) || $frame_name == chr(0) . chr(0) . chr(0) . chr(0)) {
// padding encountered
$ThisFileInfo['id3v2']['padding']['start'] = $framedataoffset;
$ThisFileInfo['id3v2']['padding']['length'] = strlen($framedata);
$ThisFileInfo['id3v2']['padding']['valid'] = true;
for ($i = 0; $i < $ThisFileInfo['id3v2']['padding']['length']; $i++) {
if (substr($framedata, $i, 1) != chr(0)) {
$ThisFileInfo['id3v2']['padding']['valid'] = false;
$ThisFileInfo['id3v2']['padding']['errorpos'] = $ThisFileInfo['id3v2']['padding']['start'] + $i;
$ThisFileInfo['warning'] .= "\n" . 'Invalid ID3v2 padding found at offset ' . $ThisFileInfo['id3v2']['padding']['errorpos'];
break;
}
}
break;
// skip rest of ID3v2 header
}
if ($frame_name == 'COM ') {
$ThisFileInfo['warning'] .= "\n" . 'error parsing "' . $frame_name . '" (' . $framedataoffset . ' bytes into the ID3v2.' . $ThisFileInfo['id3v2']['majorversion'] . ' tag). (ERROR: !IsValidID3v2FrameName("' . str_replace(chr(0), ' ', $frame_name) . '", ' . $ThisFileInfo['id3v2']['majorversion'] . '))). [Note: this particular error has been known to happen with tags edited by iTunes (versions "X v2.0.3", "v3.0.1" are known-guilty, probably others too)]';
$frame_name = 'COMM';
}
if ($frame_size <= strlen($framedata) && IsValidID3v2FrameName($frame_name, $ThisFileInfo['id3v2']['majorversion'])) {
$ThisFileInfo['id3v2']["{$frame_name}"]['data'] = substr($framedata, 0, $frame_size);
$ThisFileInfo['id3v2']["{$frame_name}"]['datalength'] = CastAsInt($frame_size);
$ThisFileInfo['id3v2']["{$frame_name}"]['dataoffset'] = $framedataoffset;
$framedata = substr($framedata, $frame_size);
// in getid3.frames.php - this function does all the FrameID-level parsing
ID3v2FrameProcessing($frame_name, $frame_flags, $ThisFileInfo);
} else {
// invalid frame length or FrameID
if ($frame_size <= strlen($framedata)) {
if (IsValidID3v2FrameName(substr($framedata, $frame_size, 4), $ThisFileInfo['id3v2']['majorversion'])) {
// next frame is valid, just skip the current frame
$framedata = substr($framedata, $frame_size);
$InvalidFrameMessageType = 'warning';
$InvalidFrameMessageText = ' Next frame is valid, skipping current frame.';
} else {
// next frame is invalid too, abort processing
unset($framedata);
$InvalidFrameMessageType = 'error';
$InvalidFrameMessageText = ' Next frame is also invalid, aborting processing.';
}
} elseif ($frame_size == strlen($framedata)) {
// this is the last frame, just skip
$InvalidFrameMessageType = 'warning';
$InvalidFrameMessageText = ' This was the last frame.';
} else {
// next frame is invalid too, abort processing
unset($framedata);
$InvalidFrameMessageType = 'error';
$InvalidFrameMessageText = ' Invalid frame size, aborting.';
}
if (!IsValidID3v2FrameName($frame_name, $ThisFileInfo['id3v2']['majorversion'])) {
switch ($frame_name) {
case chr(0) . chr(0) . 'MP':
case chr(0) . 'MP3':
case ' MP3':
case 'MP3e':
case chr(0) . 'MP':
case ' MP':
case 'MP3':
$InvalidFrameMessageType = 'warning';
$ThisFileInfo["{$InvalidFrameMessageType}"] .= "\n" . 'error parsing "' . $frame_name . '" (' . $framedataoffset . ' bytes into the ID3v2.' . $ThisFileInfo['id3v2']['majorversion'] . ' tag). (ERROR: !IsValidID3v2FrameName("' . str_replace(chr(0), ' ', $frame_name) . '", ' . $ThisFileInfo['id3v2']['majorversion'] . '))). [Note: this particular error has been known to happen with tags edited by "MP3ext (www.mutschler.de/mp3ext/)"]';
break;
default:
$ThisFileInfo["{$InvalidFrameMessageType}"] .= "\n" . 'error parsing "' . $frame_name . '" (' . $framedataoffset . ' bytes into the ID3v2.' . $ThisFileInfo['id3v2']['majorversion'] . ' tag). (ERROR: !IsValidID3v2FrameName("' . str_replace(chr(0), ' ', $frame_name) . '", ' . $ThisFileInfo['id3v2']['majorversion'] . '))).';
break;
}
} elseif ($frame_size > strlen($framedata)) {
$ThisFileInfo["{$InvalidFrameMessageType}"] .= "\n" . 'error parsing "' . $frame_name . '" (' . $framedataoffset . ' bytes into the ID3v2.' . $ThisFileInfo['id3v2']['majorversion'] . ' tag). (ERROR: $frame_size (' . $frame_size . ') > strlen($framedata) (' . strlen($framedata) . ')).';
} else {
$ThisFileInfo["{$InvalidFrameMessageType}"] .= "\n" . 'error parsing "' . $frame_name . '" (' . $framedataoffset . ' bytes into the ID3v2.' . $ThisFileInfo['id3v2']['majorversion'] . ' tag).';
}
$ThisFileInfo["{$InvalidFrameMessageType}"] .= $InvalidFrameMessageText;
}
$framedataoffset += $frame_size + ID3v2HeaderLength($ThisFileInfo['id3v2']['majorversion']);
}
}
// Footer
// The footer is a copy of the header, but with a different identifier.
// ID3v2 identifier "3DI"
// ID3v2 version $04 00
// ID3v2 flags %abcd0000
// ID3v2 size 4 * %0xxxxxxx
if (isset($ThisFileInfo['id3v2']['flags']['isfooter']) && $ThisFileInfo['id3v2']['flags']['isfooter']) {
$footer = fread($fd, 10);
if (substr($footer, 0, 3) == '3DI') {
$ThisFileInfo['id3v2']['footer'] = true;
$ThisFileInfo['id3v2']['majorversion_footer'] = ord(substr($footer, 3, 1));
$ThisFileInfo['id3v2']['minorversion_footer'] = ord(substr($footer, 4, 1));
}
if ($ThisFileInfo['id3v2']['majorversion_footer'] <= 4) {
$id3_flags = BigEndian2Bin(substr($footer, 5, 1));
$ThisFileInfo['id3v2']['flags']['unsynch_footer'] = substr($id3_flags, 0, 1);
$ThisFileInfo['id3v2']['flags']['extfoot_footer'] = substr($id3_flags, 1, 1);
$ThisFileInfo['id3v2']['flags']['experim_footer'] = substr($id3_flags, 2, 1);
$ThisFileInfo['id3v2']['flags']['isfooter_footer'] = substr($id3_flags, 3, 1);
$ThisFileInfo['id3v2']['footerlength'] = BigEndian2Int(substr($footer, 6, 4), 1);
}
}
// end footer
if (isset($ThisFileInfo['id3v2']['comments']['genre'])) {
foreach ($ThisFileInfo['id3v2']['comments']['genre'] as $key => $value) {
unset($ThisFileInfo['id3v2']['comments']['genre'][$key]);
$ThisFileInfo['id3v2']['comments'] = array_merge_noclobber($ThisFileInfo['id3v2']['comments'], ParseID3v2GenreString($value));
}
}
if (isset($ThisFileInfo['id3v2']['comments']['track'])) {
foreach ($ThisFileInfo['id3v2']['comments']['track'] as $key => $value) {
if (strstr($value, '/')) {
list($ThisFileInfo['id3v2']['comments']['track'][$key], $ThisFileInfo['id3v2']['comments']['totaltracks'][$key]) = explode('/', $ThisFileInfo['id3v2']['comments']['track'][$key]);
}
// Convert track number to integer (ID3v2 track numbers could be returned as a
// string ('03' for example) - this will ensure all track numbers are integers
$ThisFileInfo['id3v2']['comments']['track'][$key] = intval($ThisFileInfo['id3v2']['comments']['track'][$key]);
}
}
return true;
}
function GetAllFileInfo($filename, $assumedFormat = '', $MD5file = false, $MD5data = false)
{
require_once GETID3_INCLUDEPATH . 'getid3.functions.php';
// Function library
$ThisFileInfo['getID3version'] = GETID3VERSION;
$ThisFileInfo['fileformat'] = '';
// filled in later
$ThisFileInfo['audio']['dataformat'] = '';
// filled in later, unset if not used
$ThisFileInfo['video']['dataformat'] = '';
// filled in later, unset if not used
$ThisFileInfo['tags'] = array();
// filled in later, unset if not used
$ThisFileInfo['error'] = '';
// filled in later, unset if not used
$ThisFileInfo['warning'] = '';
// filled in later, unset if not used
$ThisFileInfo['exist'] = false;
if (eregi('^(ht|f)tp://', $filename)) {
// remote file
$ThisFileInfo['filename'] = $filename;
$ThisFileInfo['error'] .= "\n" . 'Remote files are not supported in this version of getID3() - please copy the file locally first';
} else {
// local file
$ThisFileInfo['filename'] = basename($filename);
$ThisFileInfo['filepath'] = str_replace('\\', '/', realpath(dirname($filename)));
$ThisFileInfo['filenamepath'] = $ThisFileInfo['filepath'] . '/' . $ThisFileInfo['filename'];
ob_start();
if ($localfilepointer = fopen($filename, 'rb')) {
$ThisFileInfo['exist'] = true;
//$ThisFileInfo['filesize'] = filesize($ThisFileInfo['filenamepath']);
// PHP doesn't support integers larger than 31-bit (~2GB)
// filesize() simply returns (filesize % (pow(2, 32)), no matter the actual filesize
// ftell() returns 0 if seeking to the end is beyond the range of unsigned integer
fseek($localfilepointer, 0, SEEK_END);
$ThisFileInfo['filesize'] = ftell($localfilepointer);
ob_end_clean();
if ($ThisFileInfo['filesize'] == 0) {
if (filesize($ThisFileInfo['filenamepath']) != 0) {
unset($ThisFileInfo['filesize']);
$ThisFileInfo['error'] .= "\n" . 'File is most likely larger than 2GB and is not supported by PHP';
}
// remove unneeded/meaningless keys
CleanUpGetAllMP3info($ThisFileInfo);
// close & remove local filepointer
CloseRemoveFilepointer($localfilepointer);
return $ThisFileInfo;
}
} else {
$ThisFileInfo['error'] .= "\n" . 'Error opening file: ' . trim(strip_tags(ob_get_contents()));
ob_end_clean();
// remove unneeded/meaningless keys
CleanUpGetAllMP3info($ThisFileInfo);
// close & remove local filepointer
CloseRemoveFilepointer($localfilepointer);
return $ThisFileInfo;
}
}
// Initialize avdataoffset and avdataend
$ThisFileInfo['avdataoffset'] = 0;
$ThisFileInfo['avdataend'] = $ThisFileInfo['filesize'];
// Handle APE tags
HandleAPETag($localfilepointer, $ThisFileInfo);
rewind($localfilepointer);
//$formattest = fread($localfilepointer, 16); // 16 bytes is sufficient for any format except ISO CD-image
$formattest = fread($localfilepointer, 32774);
// (ISO needs at least 32774 bytes)
// Handle ID3v2 tag
if (substr($formattest, 0, 3) == 'ID3') {
HandleID3v2Tag($localfilepointer, $ThisFileInfo);
rewind($localfilepointer);
fseek($localfilepointer, $ThisFileInfo['avdataoffset'], SEEK_SET);
$formattest = fread($localfilepointer, 32774);
// (ISO9660 needs at least 32774 bytes)
}
// Handle ID3v1 tags
HandleID3v1Tag($localfilepointer, $ThisFileInfo);
// Nothing-but-tags check
if ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset'] > 0) {
if ($DeterminedFormat = GetFileFormat($formattest)) {
// break if ID3/APE tags found on illegal format
if (!$DeterminedFormat['allowtags'] && $ThisFileInfo['avdataoffset'] > 0 && $ThisFileInfo['avdataend'] != $ThisFileInfo['filesize']) {
$ThisFileInfo['error'] .= "\n" . 'Illegal ID3 and/or APE tag found on non multimedia file.';
break;
}
// set mime type
$ThisFileInfo['mime_type'] = $DeterminedFormat['mimetype'];
// supported format signature pattern detected
require_once GETID3_INCLUDEPATH . $DeterminedFormat['include'];
switch ($DeterminedFormat['format']) {
//case 'midi':
// if ($assumedFormat === false) {
// // do not parse all MIDI tracks - much faster
// getMIDIHeaderFilepointer($localfilepointer, $ThisFileInfo, false);
// } else {
// getMIDIHeaderFilepointer($localfilepointer, $ThisFileInfo);
// }
// break;
//case 'aac':
// if (!getAACADIFheaderFilepointer($localfilepointer, $ThisFileInfo)) {
// $dummy = $ThisFileInfo;
// unset($dummy['error']);
// if (getAACADTSheaderFilepointer($localfilepointer, $dummy)) {
// $ThisFileInfo = $dummy;
// }
// }
// break;
default:
$VariableFunctionName = $DeterminedFormat['function'];
$VariableFunctionName($localfilepointer, $ThisFileInfo);
break;
}
} elseif ($assumedFormat == 'mp3' || $assumedFormat == '' && (substr($formattest, 0, 3) == 'ID3' || substr(BigEndian2Bin(substr($formattest, 0, 2)), 0, 11) == '11111111111')) {
// assume AAC-ADTS format
require_once GETID3_INCLUDEPATH . 'getid3.aac.php';
$dummy = $ThisFileInfo;
if (getAACADTSheaderFilepointer($localfilepointer, $dummy)) {
$ThisFileInfo = $dummy;
} else {
// it's not AAC-ADTS format, probably MP3
require_once GETID3_INCLUDEPATH . 'getid3.mp3.php';
getMP3headerFilepointer($localfilepointer, $ThisFileInfo);
}
} else {
// unknown format, do nothing
}
}
if (isset($ThisFileInfo['fileformat'])) {
// Calculate combined bitrate - audio + video
$CombinedBitrate = 0;
$CombinedBitrate += isset($ThisFileInfo['audio']['bitrate']) ? $ThisFileInfo['audio']['bitrate'] : 0;
$CombinedBitrate += isset($ThisFileInfo['video']['bitrate']) ? $ThisFileInfo['video']['bitrate'] : 0;
if ($CombinedBitrate > 0 && !isset($ThisFileInfo['bitrate'])) {
$ThisFileInfo['bitrate'] = $CombinedBitrate;
}
// Set playtime string
if (!empty($ThisFileInfo['playtime_seconds']) && empty($ThisFileInfo['playtime_string'])) {
$ThisFileInfo['playtime_string'] = PlaytimeString($ThisFileInfo['playtime_seconds']);
}
if (!empty($ThisFileInfo['audio']['channels'])) {
switch ($ThisFileInfo['audio']['channels']) {
case 1:
$ThisFileInfo['audio']['channelmode'] = 'mono';
break;
case 2:
$ThisFileInfo['audio']['channelmode'] = 'stereo';
break;
default:
// unknown?
break;
}
}
}
// Get the MD5 hash of the entire file
if ($MD5file && empty($ThisFileInfo['md5_file'])) {
$ThisFileInfo['md5_file'] = md5_file($filename);
}
// Get the MD5 hash of the audio/video portion of the file
// (without ID3/APE/Lyrics3/etc header/footer tags
if ($MD5data && empty($ThisFileInfo['md5_data'])) {
getMD5data($ThisFileInfo);
}
// return tags data in alphabetical order, without duplicates
$ThisFileInfo['tags'] = array_unique($ThisFileInfo['tags']);
sort($ThisFileInfo['tags']);
// remove unneeded/meaningless keys
CleanUpGetAllMP3info($ThisFileInfo);
// close & remove local filepointer
CloseRemoveFilepointer($localfilepointer);
return $ThisFileInfo;
}
function getMPEGHeaderFilepointer(&$fd, &$ThisFileInfo)
{
$ThisFileInfo['fileformat'] = 'mpeg';
fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
$MPEGstreamData = fread($fd, min(100000, $ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']));
$MPEGstreamDataLength = strlen($MPEGstreamData);
$foundVideo = true;
$VideoChunkOffset = 0;
while (substr($MPEGstreamData, $VideoChunkOffset++, 4) !== MPEG_VIDEO_SEQUENCE_HEADER) {
if ($VideoChunkOffset >= $MPEGstreamDataLength) {
$foundVideo = false;
break 2;
}
}
if ($foundVideo) {
// Start code 32 bits
// horizontal frame size 12 bits
// vertical frame size 12 bits
// pixel aspect ratio 4 bits
// frame rate 4 bits
// bitrate 18 bits
// marker bit 1 bit
// VBV buffer size 10 bits
// constrained parameter flag 1 bit
// intra quant. matrix flag 1 bit
// intra quant. matrix values 512 bits (present if matrix flag == 1)
// non-intra quant. matrix flag 1 bit
// non-intra quant. matrix values 512 bits (present if matrix flag == 1)
$ThisFileInfo['video']['dataformat'] = 'mpeg';
// I don't know how to differentiate between MPEG-1 and MPEG-2 video stream
// Any information appreciated: info@getid3.org
//$ThisFileInfo['video']['codec'] = 'MPEG-1';
//$ThisFileInfo['video']['codec'] = 'MPEG-2';
$ThisFileInfo['video']['codec'] = 'MPEG';
$VideoChunkOffset += strlen(MPEG_VIDEO_SEQUENCE_HEADER) - 1;
$FrameSizeDWORD = BigEndian2Int(substr($MPEGstreamData, $VideoChunkOffset, 3));
$VideoChunkOffset += 3;
$AspectRatioFrameRateDWORD = BigEndian2Int(substr($MPEGstreamData, $VideoChunkOffset, 1));
$VideoChunkOffset += 1;
$assortedinformation = BigEndian2Bin(substr($MPEGstreamData, $VideoChunkOffset, 4));
$VideoChunkOffset += 4;
$ThisFileInfo['mpeg']['video']['raw']['framesize_horizontal'] = ($FrameSizeDWORD & 0xfff000) >> 12;
// 12 bits for horizontal frame size
$ThisFileInfo['mpeg']['video']['raw']['framesize_vertical'] = $FrameSizeDWORD & 0xfff;
// 12 bits for vertical frame size
$ThisFileInfo['mpeg']['video']['raw']['pixel_aspect_ratio'] = ($AspectRatioFrameRateDWORD & 0xf0) >> 4;
$ThisFileInfo['mpeg']['video']['raw']['frame_rate'] = $AspectRatioFrameRateDWORD & 0xf;
$ThisFileInfo['mpeg']['video']['framesize_horizontal'] = $ThisFileInfo['mpeg']['video']['raw']['framesize_horizontal'];
$ThisFileInfo['mpeg']['video']['framesize_vertical'] = $ThisFileInfo['mpeg']['video']['raw']['framesize_vertical'];
$ThisFileInfo['mpeg']['video']['pixel_aspect_ratio'] = MPEGvideoAspectRatioLookup($ThisFileInfo['mpeg']['video']['raw']['pixel_aspect_ratio']);
$ThisFileInfo['mpeg']['video']['pixel_aspect_ratio_text'] = MPEGvideoAspectRatioTextLookup($ThisFileInfo['mpeg']['video']['raw']['pixel_aspect_ratio']);
$ThisFileInfo['mpeg']['video']['frame_rate'] = MPEGvideoFramerateLookup($ThisFileInfo['mpeg']['video']['raw']['frame_rate']);
$ThisFileInfo['mpeg']['video']['raw']['bitrate'] = Bin2Dec(substr($assortedinformation, 0, 18));
$ThisFileInfo['mpeg']['video']['raw']['marker_bit'] = Bin2Dec(substr($assortedinformation, 18, 1));
$ThisFileInfo['mpeg']['video']['raw']['vbv_buffer_size'] = Bin2Dec(substr($assortedinformation, 19, 10));
$ThisFileInfo['mpeg']['video']['raw']['constrained_param_flag'] = Bin2Dec(substr($assortedinformation, 29, 1));
$ThisFileInfo['mpeg']['video']['raw']['intra_quant_flag'] = Bin2Dec(substr($assortedinformation, 30, 1));
if ($ThisFileInfo['mpeg']['video']['raw']['bitrate'] == 0x3ffff) {
// 18 set bits
$ThisFileInfo['warning'] .= "\n" . 'This version of getID3() [' . GETID3VERSION . '] cannot determine average bitrate of VBR MPEG video files';
$ThisFileInfo['mpeg']['video']['bitrate_mode'] = 'vbr';
} else {
$ThisFileInfo['mpeg']['video']['bitrate'] = $ThisFileInfo['mpeg']['video']['raw']['bitrate'] * 400;
$ThisFileInfo['mpeg']['video']['bitrate_mode'] = 'cbr';
$ThisFileInfo['video']['bitrate'] = $ThisFileInfo['mpeg']['video']['bitrate'];
}
$ThisFileInfo['video']['resolution_x'] = $ThisFileInfo['mpeg']['video']['framesize_horizontal'];
$ThisFileInfo['video']['resolution_y'] = $ThisFileInfo['mpeg']['video']['framesize_vertical'];
$ThisFileInfo['video']['frame_rate'] = $ThisFileInfo['mpeg']['video']['frame_rate'];
$ThisFileInfo['video']['bitrate_mode'] = $ThisFileInfo['mpeg']['video']['bitrate_mode'];
$ThisFileInfo['video']['lossless'] = false;
$ThisFileInfo['video']['bits_per_sample'] = 24;
} else {
$ThisFileInfo['error'] .= "\n" . 'Could not find start of video block in the first 100,000 bytes (or before end of file) - this might not be an MPEG-video file?';
}
$AudioChunkOffset = 0;
while (true) {
while (substr($MPEGstreamData, $AudioChunkOffset++, 4) !== MPEG_AUDIO_START) {
if ($AudioChunkOffset >= $MPEGstreamDataLength) {
break 2;
}
}
require_once GETID3_INCLUDEPATH . 'getid3.mp3.php';
for ($i = 0; $i <= 2; $i++) {
// some files have the MPEG-audio header 8 bytes after the end of the $00 $00 $01 $C0 signature, some have it 9 bytes, some 10 bytes after
// I have no idea why or what the difference is, so this is a stupid hack.
// If anybody has any better idea of what's going on, please let me know - info@getid3.org
$dummy = $ThisFileInfo;
if (decodeMPEGaudioHeader($fd, $AudioChunkOffset + 3 + 8 + $i, $dummy, false)) {
$ThisFileInfo = $dummy;
$ThisFileInfo['audio']['bits_per_sample'] = 16;
$ThisFileInfo['audio']['bitrate_mode'] = 'cbr';
$ThisFileInfo['audio']['lossless'] = false;
break 2;
}
}
}
return true;
}
function getID3v2Filepointer($fd, &$MP3fileInfo)
{
// Overall tag structure:
// +-----------------------------+
// | Header (10 bytes) |
// +-----------------------------+
// | Extended Header |
// | (variable length, OPTIONAL) |
// +-----------------------------+
// | Frames (variable length) |
// +-----------------------------+
// | Padding |
// | (variable length, OPTIONAL) |
// +-----------------------------+
// | Footer (10 bytes, OPTIONAL) |
// +-----------------------------+
// Header
// ID3v2/file identifier "ID3"
// ID3v2 version $04 00
// ID3v2 flags (%ab000000 in v2.2, %abc00000 in v2.3, %abcd0000 in v2.4.x)
// ID3v2 size 4 * %0xxxxxxx
rewind($fd);
$header = fread($fd, 10);
if (substr($header, 0, 3) == 'ID3') {
$MP3fileInfo['id3']['id3v2']['header'] = TRUE;
$MP3fileInfo['id3']['id3v2']['majorversion'] = ord($header[3]);
$MP3fileInfo['id3']['id3v2']['minorversion'] = ord($header[4]);
}
if (isset($MP3fileInfo['id3']['id3v2']['header']) && $MP3fileInfo['id3']['id3v2']['majorversion'] <= 4) {
// this script probably won't correctly parse ID3v2.5.x and above.
$id3_flags = BigEndian2Bin($header[5]);
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2) {
// %ab000000 in v2.2
$MP3fileInfo['id3']['id3v2']['flags']['unsynch'] = $id3_flags[0];
// a - Unsynchronisation
$MP3fileInfo['id3']['id3v2']['flags']['compression'] = $id3_flags[1];
// b - Compression
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3) {
// %abc00000 in v2.3
$MP3fileInfo['id3']['id3v2']['flags']['unsynch'] = $id3_flags[0];
// a - Unsynchronisation
$MP3fileInfo['id3']['id3v2']['flags']['exthead'] = $id3_flags[1];
// b - Extended header
$MP3fileInfo['id3']['id3v2']['flags']['experim'] = $id3_flags[2];
// c - Experimental indicator
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 4) {
// %abcd0000 in v2.4
$MP3fileInfo['id3']['id3v2']['flags']['unsynch'] = $id3_flags[0];
// a - Unsynchronisation
$MP3fileInfo['id3']['id3v2']['flags']['exthead'] = $id3_flags[1];
// b - Extended header
$MP3fileInfo['id3']['id3v2']['flags']['experim'] = $id3_flags[2];
// c - Experimental indicator
$MP3fileInfo['id3']['id3v2']['flags']['isfooter'] = $id3_flags[3];
// d - Footer present
}
}
}
$MP3fileInfo['id3']['id3v2']['headerlength'] = BigEndian2Int(substr($header, 6, 4), 1) + ID3v2HeaderLength($MP3fileInfo['id3']['id3v2']['majorversion']);
// Extended Header
if (isset($MP3fileInfo['id3']['id3v2']['flags']['exthead']) && $MP3fileInfo['id3']['id3v2']['flags']['exthead']) {
// Extended header size 4 * %0xxxxxxx
// Number of flag bytes $01
// Extended Flags $xx
// Where the 'Extended header size' is the size of the whole extended header, stored as a 32 bit synchsafe integer.
$extheader = fread($fd, 4);
$MP3fileInfo['id3']['id3v2']['extheaderlength'] = BigEndian2Int($extheader, 1);
// The extended flags field, with its size described by 'number of flag bytes', is defined as:
// %0bcd0000
// b - Tag is an update
// Flag data length $00
// c - CRC data present
// Flag data length $05
// Total frame CRC 5 * %0xxxxxxx
// d - Tag restrictions
// Flag data length $01
$extheaderflagbytes = fread($fd, 1);
$extheaderflags = fread($fd, $extheaderflagbytes);
$id3_exthead_flags = BigEndian2Bin(substr($header, 5, 1));
$MP3fileInfo['id3']['id3v2']['exthead_flags']['update'] = substr($id3_exthead_flags, 1, 1);
$MP3fileInfo['id3']['id3v2']['exthead_flags']['CRC'] = substr($id3_exthead_flags, 2, 1);
if ($MP3fileInfo['id3']['id3v2']['exthead_flags']['CRC']) {
$extheaderrawCRC = fread($fd, 5);
$MP3fileInfo['id3']['id3v2']['exthead_flags']['CRC'] = BigEndian2Int($extheaderrawCRC, 1);
}
$MP3fileInfo['id3']['id3v2']['exthead_flags']['restrictions'] = substr($id3_exthead_flags, 3, 1);
if ($MP3fileInfo['id3']['id3v2']['exthead_flags']['restrictions']) {
// Restrictions %ppqrrstt
$extheaderrawrestrictions = fread($fd, 1);
$MP3fileInfo['id3']['id3v2']['exthead_flags']['restrictions_tagsize'] = (bindec('11000000') & ord($extheaderrawrestrictions)) >> 6;
// p - Tag size restrictions
$MP3fileInfo['id3']['id3v2']['exthead_flags']['restrictions_textenc'] = (bindec('00100000') & ord($extheaderrawrestrictions)) >> 5;
// q - Text encoding restrictions
$MP3fileInfo['id3']['id3v2']['exthead_flags']['restrictions_textsize'] = (bindec('00011000') & ord($extheaderrawrestrictions)) >> 3;
// r - Text fields size restrictions
$MP3fileInfo['id3']['id3v2']['exthead_flags']['restrictions_imgenc'] = (bindec('00000100') & ord($extheaderrawrestrictions)) >> 2;
// s - Image encoding restrictions
$MP3fileInfo['id3']['id3v2']['exthead_flags']['restrictions_imgsize'] = (bindec('00000011') & ord($extheaderrawrestrictions)) >> 0;
// t - Image size restrictions
}
}
// end extended header
// Frames
// All ID3v2 frames consists of one frame header followed by one or more
// fields containing the actual information. The header is always 10
// bytes and laid out as follows:
//
// Frame ID $xx xx xx xx (four characters)
// Size 4 * %0xxxxxxx
// Flags $xx xx
$sizeofframes = $MP3fileInfo['id3']['id3v2']['headerlength'] - ID3v2HeaderLength($MP3fileInfo['id3']['id3v2']['majorversion']);
if (isset($MP3fileInfo['id3']['id3v2']['extheaderlength'])) {
$sizeofframes -= $MP3fileInfo['id3']['id3v2']['extheaderlength'];
}
if (isset($MP3fileInfo['id3']['id3v2']['flags']['isfooter']) && $MP3fileInfo['id3']['id3v2']['flags']['isfooter']) {
$sizeofframes -= 10;
// footer takes last 10 bytes of ID3v2 header, after frame data, before audio
}
if ($sizeofframes > 0) {
$framedata = fread($fd, $sizeofframes);
// read all frames from file into $framedata variable
// if entire frame data is unsynched, de-unsynch it now (ID3v2.3.x)
if (isset($MP3fileInfo['id3']['id3v2']['flags']['unsynch']) && $MP3fileInfo['id3']['id3v2']['flags']['unsynch'] && $MP3fileInfo['id3']['id3v2']['majorversion'] <= 3) {
$framedata = DeUnSynchronise($framedata);
}
// [in ID3v2.4.0] Unsynchronisation [S:6.1] is done on frame level, instead
// of on tag level, making it easier to skip frames, increasing the streamability
// of the tag. The unsynchronisation flag in the header [S:3.1] indicates that
// there exists an unsynchronised frame, while the new unsynchronisation flag in
// the frame header [S:4.1.2] indicates unsynchronisation.
include_once GETID3_INCLUDEPATH . 'getid3.frames.php';
// ID3v2FrameProcessing()
$framedataoffset = 10;
// how many bytes into the stream - start from after the 10-byte header
while (isset($framedata) && strlen($framedata) > 0) {
// cycle through until no more frame data is left to parse
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2) {
// Frame ID $xx xx xx (three characters)
// Size $xx xx xx (24-bit integer)
// Flags $xx xx
$frame_header = substr($framedata, 0, 6);
// take next 6 bytes for header
$framedata = substr($framedata, 6);
// and leave the rest in $framedata
$frame_name = substr($frame_header, 0, 3);
$frame_size = BigEndian2Int(substr($frame_header, 3, 3), 0);
$frame_flags = '';
// not used for anything, just to avoid E_NOTICEs
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] > 2) {
// Frame ID $xx xx xx xx (four characters)
// Size $xx xx xx xx (32-bit integer in v2.3, 28-bit synchsafe in v2.4+)
// Flags $xx xx
$frame_header = substr($framedata, 0, 10);
// take next 10 bytes for header
$framedata = substr($framedata, 10);
// and leave the rest in $framedata
$frame_name = substr($frame_header, 0, 4);
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 3) {
$frame_size = BigEndian2Int(substr($frame_header, 4, 4), 0);
// 32-bit integer
} else {
// ID3v2.4+
$frame_size = BigEndian2Int(substr($frame_header, 4, 4), 1);
// 32-bit synchsafe integer (28-bit value)
}
if ($frame_size < strlen($framedata) + 4) {
$nextFrameID = substr($framedata, $frame_size, 4);
if (IsValidID3v2FrameName($nextFrameID, $MP3fileInfo['id3']['id3v2']['majorversion'])) {
// next frame is OK
} else {
if ($frame_name == chr(0) . 'MP3' || $frame_name == ' MP3' || $frame_name == 'MP3e') {
// MP3ext known broken frames - "ok" for the purposes of this test
} else {
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 4 && IsValidID3v2FrameName(substr($framedata, BigEndian2Int(substr($frame_header, 4, 4), 0), 4), 3)) {
$MP3fileInfo['error'] .= "\n" . 'ID3v2 tag written as ID3v2.4, but with non-synchsafe integers (ID3v2.3 style). Older versions of Helium2 (www.helium2.com) is a known culprit of this. Tag has been parsed as ID3v2.3';
$MP3fileInfo['id3']['id3v2']['majorversion'] = 3;
$frame_size = BigEndian2Int(substr($frame_header, 4, 4), 0);
// 32-bit integer
}
}
}
}
$frame_flags = BigEndian2Bin(substr($frame_header, 8, 2));
}
}
if ($frame_name == chr(0) . chr(0) . chr(0) . chr(0)) {
// padding encountered
// $MP3fileInfo['id3']['id3v2']['padding']['start'] = $MP3fileInfo['id3']['id3v2']['headerlength'] - strlen($framedata);
$MP3fileInfo['id3']['id3v2']['padding']['start'] = $framedataoffset;
$MP3fileInfo['id3']['id3v2']['padding']['length'] = strlen($framedata);
$MP3fileInfo['id3']['id3v2']['padding']['valid'] = TRUE;
for ($i = 0; $i < $MP3fileInfo['id3']['id3v2']['padding']['length']; $i++) {
if (substr($framedata, $i, 1) != chr(0)) {
$MP3fileInfo['id3']['id3v2']['padding']['valid'] = FALSE;
$MP3fileInfo['id3']['id3v2']['padding']['errorpos'] = $MP3fileInfo['id3']['id3v2']['padding']['start'] + $i;
break;
}
}
break;
// skip rest of ID3v2 header
}
if ($frame_size <= strlen($framedata) && IsValidID3v2FrameName($frame_name, $MP3fileInfo['id3']['id3v2']['majorversion'])) {
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['data'] = substr($framedata, 0, $frame_size);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['datalength'] = CastAsInt($frame_size);
$MP3fileInfo['id3']['id3v2']["{$frame_name}"]['dataoffset'] = $framedataoffset;
$framedata = substr($framedata, $frame_size);
// in getid3.frames.php - this function does all the FrameID-level parsing
ID3v2FrameProcessing($frame_name, $frame_flags, $MP3fileInfo);
$framedataoffset += $frame_size + ID3v2HeaderLength($MP3fileInfo['id3']['id3v2']['majorversion']);
} else {
// invalid frame length or FrameID
$MP3fileInfo['error'] .= "\n" . 'error parsing "' . $frame_name . '" (' . $framedataoffset . ' bytes into the ID3v2.' . $MP3fileInfo['id3']['id3v2']['majorversion'] . ' tag).';
if ($frame_size > strlen($framedata)) {
$MP3fileInfo['error'] .= ' (ERROR: $frame_size (' . $frame_size . ') > strlen($framedata) (' . strlen($framedata) . ')).';
}
if (!IsValidID3v2FrameName($frame_name, $MP3fileInfo['id3']['id3v2']['majorversion'])) {
$MP3fileInfo['error'] .= ' (ERROR: !IsValidID3v2FrameName("' . str_replace(chr(0), ' ', $frame_name) . '", ' . $MP3fileInfo['id3']['id3v2']['majorversion'] . '))).';
if ($frame_name == chr(0) . 'MP3' || $frame_name == ' MP3' || $frame_name == 'MP3e') {
$MP3fileInfo['error'] .= ' [Note: this particular error has been known to happen with tags edited by "MP3ext V3.3.17(unicode)"]';
} else {
if ($frame_name == 'COM ') {
$MP3fileInfo['error'] .= ' [Note: this particular error has been known to happen with tags edited by "iTunes X v2.0.3"]';
}
}
}
if ($frame_size <= strlen($framedata) && IsValidID3v2FrameName(substr($framedata, $frame_size, 4), $MP3fileInfo['id3']['id3v2']['majorversion'])) {
// next frame is valid, just skip the current frame
$framedata = substr($framedata, $frame_size);
} else {
// next frame is invalid too, abort processing
unset($framedata);
}
}
}
}
// Footer
// The footer is a copy of the header, but with a different identifier.
// ID3v2 identifier "3DI"
// ID3v2 version $04 00
// ID3v2 flags %abcd0000
// ID3v2 size 4 * %0xxxxxxx
if (isset($MP3fileInfo['id3']['id3v2']['flags']['isfooter']) && $MP3fileInfo['id3']['id3v2']['flags']['isfooter']) {
$footer = fread($fd, 10);
if (substr($footer, 0, 3) == '3DI') {
$MP3fileInfo['id3']['id3v2']['footer'] = true;
$MP3fileInfo['id3']['id3v2']['majorversion_footer'] = ord(substr($footer, 3, 1));
$MP3fileInfo['id3']['id3v2']['minorversion_footer'] = ord(substr($footer, 4, 1));
}
if ($MP3fileInfo['id3']['id3v2']['majorversion_footer'] <= 4) {
$id3_flags = BigEndian2Bin(substr($footer, 5, 1));
$MP3fileInfo['id3']['id3v2']['flags']['unsynch_footer'] = substr($id3_flags, 0, 1);
$MP3fileInfo['id3']['id3v2']['flags']['extfoot_footer'] = substr($id3_flags, 1, 1);
$MP3fileInfo['id3']['id3v2']['flags']['experim_footer'] = substr($id3_flags, 2, 1);
$MP3fileInfo['id3']['id3v2']['flags']['isfooter_footer'] = substr($id3_flags, 3, 1);
$MP3fileInfo['id3']['id3v2']['footerlength'] = BigEndian2Int(substr($footer, 6, 4), 1);
}
}
// end footer
// Translate most common ID3v2 FrameIDs to easier-to-understand names
if ($MP3fileInfo['id3']['id3v2']['majorversion'] == 2) {
if (isset($MP3fileInfo['id3']['id3v2']['TT2'])) {
$MP3fileInfo['id3']['id3v2']['title'] = $MP3fileInfo['id3']['id3v2']['TT2']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['TP1'])) {
$MP3fileInfo['id3']['id3v2']['artist'] = $MP3fileInfo['id3']['id3v2']['TP1']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['TAL'])) {
$MP3fileInfo['id3']['id3v2']['album'] = $MP3fileInfo['id3']['id3v2']['TAL']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['TYE'])) {
$MP3fileInfo['id3']['id3v2']['year'] = $MP3fileInfo['id3']['id3v2']['TYE']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['TRK'])) {
$MP3fileInfo['id3']['id3v2']['track'] = $MP3fileInfo['id3']['id3v2']['TRK']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['TCO'])) {
$MP3fileInfo['id3']['id3v2']['genre'] = $MP3fileInfo['id3']['id3v2']['TCO']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['COM'][0]['asciidata'])) {
$MP3fileInfo['id3']['id3v2']['comment'] = $MP3fileInfo['id3']['id3v2']['COM'][0]['asciidata'];
}
} else {
// $MP3fileInfo['id3']['id3v2']['majorversion'] > 2
if (isset($MP3fileInfo['id3']['id3v2']['TIT2'])) {
$MP3fileInfo['id3']['id3v2']['title'] = $MP3fileInfo['id3']['id3v2']['TIT2']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['TPE1'])) {
$MP3fileInfo['id3']['id3v2']['artist'] = $MP3fileInfo['id3']['id3v2']['TPE1']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['TALB'])) {
$MP3fileInfo['id3']['id3v2']['album'] = $MP3fileInfo['id3']['id3v2']['TALB']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['TYER'])) {
$MP3fileInfo['id3']['id3v2']['year'] = $MP3fileInfo['id3']['id3v2']['TYER']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['TRCK'])) {
$MP3fileInfo['id3']['id3v2']['track'] = $MP3fileInfo['id3']['id3v2']['TRCK']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['TCON'])) {
$MP3fileInfo['id3']['id3v2']['genre'] = $MP3fileInfo['id3']['id3v2']['TCON']['asciidata'];
}
if (isset($MP3fileInfo['id3']['id3v2']['COMM'][0]['asciidata'])) {
$MP3fileInfo['id3']['id3v2']['comment'] = $MP3fileInfo['id3']['id3v2']['COMM'][0]['asciidata'];
}
}
if (isset($MP3fileInfo['id3']['id3v2']['genre'])) {
$MP3fileInfo['id3']['id3v2']['genrelist'] = ParseID3v2GenreString($MP3fileInfo['id3']['id3v2']['genre']);
if ($MP3fileInfo['id3']['id3v2']['genrelist']['genreid'][0] !== '') {
$MP3fileInfo['id3']['id3v2']['genreid'] = $MP3fileInfo['id3']['id3v2']['genrelist']['genreid'][0];
}
$MP3fileInfo['id3']['id3v2']['genre'] = $MP3fileInfo['id3']['id3v2']['genrelist']['genre'][0];
}
if (isset($MP3fileInfo['id3']['id3v2']['track']) && strpos($MP3fileInfo['id3']['id3v2']['track'], '/') !== FALSE) {
$tracktotaltracks = explode('/', $MP3fileInfo['id3']['id3v2']['track']);
$MP3fileInfo['id3']['id3v2']['track'] = $tracktotaltracks[0];
$MP3fileInfo['id3']['id3v2']['totaltracks'] = $tracktotaltracks[1];
}
} else {
// MajorVersion is > 4, or no ID3v2 header present
if (isset($MP3fileInfo['id3']['id3v2']['header'])) {
// MajorVersion is > 4
$MP3fileInfo['error'] .= "\n" . 'this script only parses up to ID3v2.4.x - this tag is ID3v2.' . $MP3fileInfo['id3']['id3v2']['majorversion'] . '.' . $MP3fileInfo['id3']['id3v2']['minorversion'];
} else {
// no ID3v2 header present - this is fine, just don't process anything.
}
}
return TRUE;
}
