From 5bf66662a9bdd62c5bccab15e607cd95cfb8fcab Mon Sep 17 00:00:00 2001 From: Charles Cabergs Date: Mon, 27 Jul 2020 10:05:23 +0200 Subject: Removed wordpress and phpmyadmin, my server doesn't handle it well and it brings shame on my familly --- .../wordpress/wp-includes/ID3/module.audio.mp3.php | 2150 -------------------- 1 file changed, 2150 deletions(-) delete mode 100644 srcs/wordpress/wp-includes/ID3/module.audio.mp3.php (limited to 'srcs/wordpress/wp-includes/ID3/module.audio.mp3.php') diff --git a/srcs/wordpress/wp-includes/ID3/module.audio.mp3.php b/srcs/wordpress/wp-includes/ID3/module.audio.mp3.php deleted file mode 100644 index 4bd75a0..0000000 --- a/srcs/wordpress/wp-includes/ID3/module.audio.mp3.php +++ /dev/null @@ -1,2150 +0,0 @@ - // -// available at https://github.com/JamesHeinrich/getID3 // -// or https://www.getid3.org // -// or http://getid3.sourceforge.net // -// see readme.txt for more details // -///////////////////////////////////////////////////////////////// -// // -// module.audio.mp3.php // -// module for analyzing MP3 files // -// dependencies: NONE // -// /// -///////////////////////////////////////////////////////////////// - - -// number of frames to scan to determine if MPEG-audio sequence is valid -// Lower this number to 5-20 for faster scanning -// Increase this number to 50+ for most accurate detection of valid VBR/CBR -// mpeg-audio streams -define('GETID3_MP3_VALID_CHECK_FRAMES', 35); - - -class getid3_mp3 extends getid3_handler -{ - /** - * Forces getID3() to scan the file byte-by-byte and log all the valid audio frame headers - extremely slow, - * unrecommended, but may provide data from otherwise-unusable files. - * - * @var bool - */ - public $allow_bruteforce = false; - - /** - * @return bool - */ - public function Analyze() { - $info = &$this->getid3->info; - - $initialOffset = $info['avdataoffset']; - - if (!$this->getOnlyMPEGaudioInfo($info['avdataoffset'])) { - if ($this->allow_bruteforce) { - $this->error('Rescanning file in BruteForce mode'); - $this->getOnlyMPEGaudioInfoBruteForce(); - } - } - - - if (isset($info['mpeg']['audio']['bitrate_mode'])) { - $info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']); - } - - if (((isset($info['id3v2']['headerlength']) && ($info['avdataoffset'] > $info['id3v2']['headerlength'])) || (!isset($info['id3v2']) && ($info['avdataoffset'] > 0) && ($info['avdataoffset'] != $initialOffset)))) { - - $synchoffsetwarning = 'Unknown data before synch '; - if (isset($info['id3v2']['headerlength'])) { - $synchoffsetwarning .= '(ID3v2 header ends at '.$info['id3v2']['headerlength'].', then '.($info['avdataoffset'] - $info['id3v2']['headerlength']).' bytes garbage, '; - } elseif ($initialOffset > 0) { - $synchoffsetwarning .= '(should be at '.$initialOffset.', '; - } else { - $synchoffsetwarning .= '(should be at beginning of file, '; - } - $synchoffsetwarning .= 'synch detected at '.$info['avdataoffset'].')'; - if (isset($info['audio']['bitrate_mode']) && ($info['audio']['bitrate_mode'] == 'cbr')) { - - if (!empty($info['id3v2']['headerlength']) && (($info['avdataoffset'] - $info['id3v2']['headerlength']) == $info['mpeg']['audio']['framelength'])) { - - $synchoffsetwarning .= '. This is a known problem with some versions of LAME (3.90-3.92) DLL in CBR mode.'; - $info['audio']['codec'] = 'LAME'; - $CurrentDataLAMEversionString = 'LAME3.'; - - } elseif (empty($info['id3v2']['headerlength']) && ($info['avdataoffset'] == $info['mpeg']['audio']['framelength'])) { - - $synchoffsetwarning .= '. This is a known problem with some versions of LAME (3.90 - 3.92) DLL in CBR mode.'; - $info['audio']['codec'] = 'LAME'; - $CurrentDataLAMEversionString = 'LAME3.'; - - } - - } - $this->warning($synchoffsetwarning); - - } - - if (isset($info['mpeg']['audio']['LAME'])) { - $info['audio']['codec'] = 'LAME'; - if (!empty($info['mpeg']['audio']['LAME']['long_version'])) { - $info['audio']['encoder'] = rtrim($info['mpeg']['audio']['LAME']['long_version'], "\x00"); - } elseif (!empty($info['mpeg']['audio']['LAME']['short_version'])) { - $info['audio']['encoder'] = rtrim($info['mpeg']['audio']['LAME']['short_version'], "\x00"); - } - } - - $CurrentDataLAMEversionString = (!empty($CurrentDataLAMEversionString) ? $CurrentDataLAMEversionString : (isset($info['audio']['encoder']) ? $info['audio']['encoder'] : '')); - if (!empty($CurrentDataLAMEversionString) && (substr($CurrentDataLAMEversionString, 0, 6) == 'LAME3.') && !preg_match('[0-9\)]', substr($CurrentDataLAMEversionString, -1))) { - // a version number of LAME that does not end with a number like "LAME3.92" - // or with a closing parenthesis like "LAME3.88 (alpha)" - // or a version of LAME with the LAMEtag-not-filled-in-DLL-mode bug (3.90-3.92) - - // not sure what the actual last frame length will be, but will be less than or equal to 1441 - $PossiblyLongerLAMEversion_FrameLength = 1441; - - // Not sure what version of LAME this is - look in padding of last frame for longer version string - $PossibleLAMEversionStringOffset = $info['avdataend'] - $PossiblyLongerLAMEversion_FrameLength; - $this->fseek($PossibleLAMEversionStringOffset); - $PossiblyLongerLAMEversion_Data = $this->fread($PossiblyLongerLAMEversion_FrameLength); - switch (substr($CurrentDataLAMEversionString, -1)) { - case 'a': - case 'b': - // "LAME3.94a" will have a longer version string of "LAME3.94 (alpha)" for example - // need to trim off "a" to match longer string - $CurrentDataLAMEversionString = substr($CurrentDataLAMEversionString, 0, -1); - break; - } - if (($PossiblyLongerLAMEversion_String = strstr($PossiblyLongerLAMEversion_Data, $CurrentDataLAMEversionString)) !== false) { - if (substr($PossiblyLongerLAMEversion_String, 0, strlen($CurrentDataLAMEversionString)) == $CurrentDataLAMEversionString) { - $PossiblyLongerLAMEversion_NewString = substr($PossiblyLongerLAMEversion_String, 0, strspn($PossiblyLongerLAMEversion_String, 'LAME0123456789., (abcdefghijklmnopqrstuvwxyzJFSOND)')); //"LAME3.90.3" "LAME3.87 (beta 1, Sep 27 2000)" "LAME3.88 (beta)" - if (empty($info['audio']['encoder']) || (strlen($PossiblyLongerLAMEversion_NewString) > strlen($info['audio']['encoder']))) { - $info['audio']['encoder'] = $PossiblyLongerLAMEversion_NewString; - } - } - } - } - if (!empty($info['audio']['encoder'])) { - $info['audio']['encoder'] = rtrim($info['audio']['encoder'], "\x00 "); - } - - switch (isset($info['mpeg']['audio']['layer']) ? $info['mpeg']['audio']['layer'] : '') { - case 1: - case 2: - $info['audio']['dataformat'] = 'mp'.$info['mpeg']['audio']['layer']; - break; - } - if (isset($info['fileformat']) && ($info['fileformat'] == 'mp3')) { - switch ($info['audio']['dataformat']) { - case 'mp1': - case 'mp2': - case 'mp3': - $info['fileformat'] = $info['audio']['dataformat']; - break; - - default: - $this->warning('Expecting [audio][dataformat] to be mp1/mp2/mp3 when fileformat == mp3, [audio][dataformat] actually "'.$info['audio']['dataformat'].'"'); - break; - } - } - - if (empty($info['fileformat'])) { - unset($info['fileformat']); - unset($info['audio']['bitrate_mode']); - unset($info['avdataoffset']); - unset($info['avdataend']); - return false; - } - - $info['mime_type'] = 'audio/mpeg'; - $info['audio']['lossless'] = false; - - // Calculate playtime - if (!isset($info['playtime_seconds']) && isset($info['audio']['bitrate']) && ($info['audio']['bitrate'] > 0)) { - // https://github.com/JamesHeinrich/getID3/issues/161 - // VBR header frame contains ~0.026s of silent audio data, but is not actually part of the original encoding and should be ignored - $xingVBRheaderFrameLength = ((isset($info['mpeg']['audio']['VBR_frames']) && isset($info['mpeg']['audio']['framelength'])) ? $info['mpeg']['audio']['framelength'] : 0); - - $info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset'] - $xingVBRheaderFrameLength) * 8 / $info['audio']['bitrate']; - } - - $info['audio']['encoder_options'] = $this->GuessEncoderOptions(); - - return true; - } - - /** - * @return string - */ - public function GuessEncoderOptions() { - // shortcuts - $info = &$this->getid3->info; - $thisfile_mpeg_audio = array(); - $thisfile_mpeg_audio_lame = array(); - if (!empty($info['mpeg']['audio'])) { - $thisfile_mpeg_audio = &$info['mpeg']['audio']; - if (!empty($thisfile_mpeg_audio['LAME'])) { - $thisfile_mpeg_audio_lame = &$thisfile_mpeg_audio['LAME']; - } - } - - $encoder_options = ''; - static $NamedPresetBitrates = array(16, 24, 40, 56, 112, 128, 160, 192, 256); - - if (isset($thisfile_mpeg_audio['VBR_method']) && ($thisfile_mpeg_audio['VBR_method'] == 'Fraunhofer') && !empty($thisfile_mpeg_audio['VBR_quality'])) { - - $encoder_options = 'VBR q'.$thisfile_mpeg_audio['VBR_quality']; - - } elseif (!empty($thisfile_mpeg_audio_lame['preset_used']) && isset($thisfile_mpeg_audio_lame['preset_used_id']) && (!in_array($thisfile_mpeg_audio_lame['preset_used_id'], $NamedPresetBitrates))) { - - $encoder_options = $thisfile_mpeg_audio_lame['preset_used']; - - } elseif (!empty($thisfile_mpeg_audio_lame['vbr_quality'])) { - - static $KnownEncoderValues = array(); - if (empty($KnownEncoderValues)) { - - //$KnownEncoderValues[abrbitrate_minbitrate][vbr_quality][raw_vbr_method][raw_noise_shaping][raw_stereo_mode][ath_type][lowpass_frequency] = 'preset name'; - $KnownEncoderValues[0xFF][58][1][1][3][2][20500] = '--alt-preset insane'; // 3.90, 3.90.1, 3.92 - $KnownEncoderValues[0xFF][58][1][1][3][2][20600] = '--alt-preset insane'; // 3.90.2, 3.90.3, 3.91 - $KnownEncoderValues[0xFF][57][1][1][3][4][20500] = '--alt-preset insane'; // 3.94, 3.95 - $KnownEncoderValues['**'][78][3][2][3][2][19500] = '--alt-preset extreme'; // 3.90, 3.90.1, 3.92 - $KnownEncoderValues['**'][78][3][2][3][2][19600] = '--alt-preset extreme'; // 3.90.2, 3.91 - $KnownEncoderValues['**'][78][3][1][3][2][19600] = '--alt-preset extreme'; // 3.90.3 - $KnownEncoderValues['**'][78][4][2][3][2][19500] = '--alt-preset fast extreme'; // 3.90, 3.90.1, 3.92 - $KnownEncoderValues['**'][78][4][2][3][2][19600] = '--alt-preset fast extreme'; // 3.90.2, 3.90.3, 3.91 - $KnownEncoderValues['**'][78][3][2][3][4][19000] = '--alt-preset standard'; // 3.90, 3.90.1, 3.90.2, 3.91, 3.92 - $KnownEncoderValues['**'][78][3][1][3][4][19000] = '--alt-preset standard'; // 3.90.3 - $KnownEncoderValues['**'][78][4][2][3][4][19000] = '--alt-preset fast standard'; // 3.90, 3.90.1, 3.90.2, 3.91, 3.92 - $KnownEncoderValues['**'][78][4][1][3][4][19000] = '--alt-preset fast standard'; // 3.90.3 - $KnownEncoderValues['**'][88][4][1][3][3][19500] = '--r3mix'; // 3.90, 3.90.1, 3.92 - $KnownEncoderValues['**'][88][4][1][3][3][19600] = '--r3mix'; // 3.90.2, 3.90.3, 3.91 - $KnownEncoderValues['**'][67][4][1][3][4][18000] = '--r3mix'; // 3.94, 3.95 - $KnownEncoderValues['**'][68][3][2][3][4][18000] = '--alt-preset medium'; // 3.90.3 - $KnownEncoderValues['**'][68][4][2][3][4][18000] = '--alt-preset fast medium'; // 3.90.3 - - $KnownEncoderValues[0xFF][99][1][1][1][2][0] = '--preset studio'; // 3.90, 3.90.1, 3.90.2, 3.91, 3.92 - $KnownEncoderValues[0xFF][58][2][1][3][2][20600] = '--preset studio'; // 3.90.3, 3.93.1 - $KnownEncoderValues[0xFF][58][2][1][3][2][20500] = '--preset studio'; // 3.93 - $KnownEncoderValues[0xFF][57][2][1][3][4][20500] = '--preset studio'; // 3.94, 3.95 - $KnownEncoderValues[0xC0][88][1][1][1][2][0] = '--preset cd'; // 3.90, 3.90.1, 3.90.2, 3.91, 3.92 - $KnownEncoderValues[0xC0][58][2][2][3][2][19600] = '--preset cd'; // 3.90.3, 3.93.1 - $KnownEncoderValues[0xC0][58][2][2][3][2][19500] = '--preset cd'; // 3.93 - $KnownEncoderValues[0xC0][57][2][1][3][4][19500] = '--preset cd'; // 3.94, 3.95 - $KnownEncoderValues[0xA0][78][1][1][3][2][18000] = '--preset hifi'; // 3.90, 3.90.1, 3.90.2, 3.91, 3.92 - $KnownEncoderValues[0xA0][58][2][2][3][2][18000] = '--preset hifi'; // 3.90.3, 3.93, 3.93.1 - $KnownEncoderValues[0xA0][57][2][1][3][4][18000] = '--preset hifi'; // 3.94, 3.95 - $KnownEncoderValues[0x80][67][1][1][3][2][18000] = '--preset tape'; // 3.90, 3.90.1, 3.90.2, 3.91, 3.92 - $KnownEncoderValues[0x80][67][1][1][3][2][15000] = '--preset radio'; // 3.90, 3.90.1, 3.90.2, 3.91, 3.92 - $KnownEncoderValues[0x70][67][1][1][3][2][15000] = '--preset fm'; // 3.90, 3.90.1, 3.90.2, 3.91, 3.92 - $KnownEncoderValues[0x70][58][2][2][3][2][16000] = '--preset tape/radio/fm'; // 3.90.3, 3.93, 3.93.1 - $KnownEncoderValues[0x70][57][2][1][3][4][16000] = '--preset tape/radio/fm'; // 3.94, 3.95 - $KnownEncoderValues[0x38][58][2][2][0][2][10000] = '--preset voice'; // 3.90.3, 3.93, 3.93.1 - $KnownEncoderValues[0x38][57][2][1][0][4][15000] = '--preset voice'; // 3.94, 3.95 - $KnownEncoderValues[0x38][57][2][1][0][4][16000] = '--preset voice'; // 3.94a14 - $KnownEncoderValues[0x28][65][1][1][0][2][7500] = '--preset mw-us'; // 3.90, 3.90.1, 3.92 - $KnownEncoderValues[0x28][65][1][1][0][2][7600] = '--preset mw-us'; // 3.90.2, 3.91 - $KnownEncoderValues[0x28][58][2][2][0][2][7000] = '--preset mw-us'; // 3.90.3, 3.93, 3.93.1 - $KnownEncoderValues[0x28][57][2][1][0][4][10500] = '--preset mw-us'; // 3.94, 3.95 - $KnownEncoderValues[0x28][57][2][1][0][4][11200] = '--preset mw-us'; // 3.94a14 - $KnownEncoderValues[0x28][57][2][1][0][4][8800] = '--preset mw-us'; // 3.94a15 - $KnownEncoderValues[0x18][58][2][2][0][2][4000] = '--preset phon+/lw/mw-eu/sw'; // 3.90.3, 3.93.1 - $KnownEncoderValues[0x18][58][2][2][0][2][3900] = '--preset phon+/lw/mw-eu/sw'; // 3.93 - $KnownEncoderValues[0x18][57][2][1][0][4][5900] = '--preset phon+/lw/mw-eu/sw'; // 3.94, 3.95 - $KnownEncoderValues[0x18][57][2][1][0][4][6200] = '--preset phon+/lw/mw-eu/sw'; // 3.94a14 - $KnownEncoderValues[0x18][57][2][1][0][4][3200] = '--preset phon+/lw/mw-eu/sw'; // 3.94a15 - $KnownEncoderValues[0x10][58][2][2][0][2][3800] = '--preset phone'; // 3.90.3, 3.93.1 - $KnownEncoderValues[0x10][58][2][2][0][2][3700] = '--preset phone'; // 3.93 - $KnownEncoderValues[0x10][57][2][1][0][4][5600] = '--preset phone'; // 3.94, 3.95 - } - - if (isset($KnownEncoderValues[$thisfile_mpeg_audio_lame['raw']['abrbitrate_minbitrate']][$thisfile_mpeg_audio_lame['vbr_quality']][$thisfile_mpeg_audio_lame['raw']['vbr_method']][$thisfile_mpeg_audio_lame['raw']['noise_shaping']][$thisfile_mpeg_audio_lame['raw']['stereo_mode']][$thisfile_mpeg_audio_lame['ath_type']][$thisfile_mpeg_audio_lame['lowpass_frequency']])) { - - $encoder_options = $KnownEncoderValues[$thisfile_mpeg_audio_lame['raw']['abrbitrate_minbitrate']][$thisfile_mpeg_audio_lame['vbr_quality']][$thisfile_mpeg_audio_lame['raw']['vbr_method']][$thisfile_mpeg_audio_lame['raw']['noise_shaping']][$thisfile_mpeg_audio_lame['raw']['stereo_mode']][$thisfile_mpeg_audio_lame['ath_type']][$thisfile_mpeg_audio_lame['lowpass_frequency']]; - - } elseif (isset($KnownEncoderValues['**'][$thisfile_mpeg_audio_lame['vbr_quality']][$thisfile_mpeg_audio_lame['raw']['vbr_method']][$thisfile_mpeg_audio_lame['raw']['noise_shaping']][$thisfile_mpeg_audio_lame['raw']['stereo_mode']][$thisfile_mpeg_audio_lame['ath_type']][$thisfile_mpeg_audio_lame['lowpass_frequency']])) { - - $encoder_options = $KnownEncoderValues['**'][$thisfile_mpeg_audio_lame['vbr_quality']][$thisfile_mpeg_audio_lame['raw']['vbr_method']][$thisfile_mpeg_audio_lame['raw']['noise_shaping']][$thisfile_mpeg_audio_lame['raw']['stereo_mode']][$thisfile_mpeg_audio_lame['ath_type']][$thisfile_mpeg_audio_lame['lowpass_frequency']]; - - } elseif ($info['audio']['bitrate_mode'] == 'vbr') { - - // http://gabriel.mp3-tech.org/mp3infotag.html - // int Quality = (100 - 10 * gfp->VBR_q - gfp->quality)h - - - $LAME_V_value = 10 - ceil($thisfile_mpeg_audio_lame['vbr_quality'] / 10); - $LAME_q_value = 100 - $thisfile_mpeg_audio_lame['vbr_quality'] - ($LAME_V_value * 10); - $encoder_options = '-V'.$LAME_V_value.' -q'.$LAME_q_value; - - } elseif ($info['audio']['bitrate_mode'] == 'cbr') { - - $encoder_options = strtoupper($info['audio']['bitrate_mode']).ceil($info['audio']['bitrate'] / 1000); - - } else { - - $encoder_options = strtoupper($info['audio']['bitrate_mode']); - - } - - } elseif (!empty($thisfile_mpeg_audio_lame['bitrate_abr'])) { - - $encoder_options = 'ABR'.$thisfile_mpeg_audio_lame['bitrate_abr']; - - } elseif (!empty($info['audio']['bitrate'])) { - - if ($info['audio']['bitrate_mode'] == 'cbr') { - $encoder_options = strtoupper($info['audio']['bitrate_mode']).ceil($info['audio']['bitrate'] / 1000); - } else { - $encoder_options = strtoupper($info['audio']['bitrate_mode']); - } - - } - if (!empty($thisfile_mpeg_audio_lame['bitrate_min'])) { - $encoder_options .= ' -b'.$thisfile_mpeg_audio_lame['bitrate_min']; - } - - if (!empty($thisfile_mpeg_audio_lame['encoding_flags']['nogap_prev']) || !empty($thisfile_mpeg_audio_lame['encoding_flags']['nogap_next'])) { - $encoder_options .= ' --nogap'; - } - - if (!empty($thisfile_mpeg_audio_lame['lowpass_frequency'])) { - $ExplodedOptions = explode(' ', $encoder_options, 4); - if ($ExplodedOptions[0] == '--r3mix') { - $ExplodedOptions[1] = 'r3mix'; - } - switch ($ExplodedOptions[0]) { - case '--preset': - case '--alt-preset': - case '--r3mix': - if ($ExplodedOptions[1] == 'fast') { - $ExplodedOptions[1] .= ' '.$ExplodedOptions[2]; - } - switch ($ExplodedOptions[1]) { - case 'portable': - case 'medium': - case 'standard': - case 'extreme': - case 'insane': - case 'fast portable': - case 'fast medium': - case 'fast standard': - case 'fast extreme': - case 'fast insane': - case 'r3mix': - static $ExpectedLowpass = array( - 'insane|20500' => 20500, - 'insane|20600' => 20600, // 3.90.2, 3.90.3, 3.91 - 'medium|18000' => 18000, - 'fast medium|18000' => 18000, - 'extreme|19500' => 19500, // 3.90, 3.90.1, 3.92, 3.95 - 'extreme|19600' => 19600, // 3.90.2, 3.90.3, 3.91, 3.93.1 - 'fast extreme|19500' => 19500, // 3.90, 3.90.1, 3.92, 3.95 - 'fast extreme|19600' => 19600, // 3.90.2, 3.90.3, 3.91, 3.93.1 - 'standard|19000' => 19000, - 'fast standard|19000' => 19000, - 'r3mix|19500' => 19500, // 3.90, 3.90.1, 3.92 - 'r3mix|19600' => 19600, // 3.90.2, 3.90.3, 3.91 - 'r3mix|18000' => 18000, // 3.94, 3.95 - ); - if (!isset($ExpectedLowpass[$ExplodedOptions[1].'|'.$thisfile_mpeg_audio_lame['lowpass_frequency']]) && ($thisfile_mpeg_audio_lame['lowpass_frequency'] < 22050) && (round($thisfile_mpeg_audio_lame['lowpass_frequency'] / 1000) < round($thisfile_mpeg_audio['sample_rate'] / 2000))) { - $encoder_options .= ' --lowpass '.$thisfile_mpeg_audio_lame['lowpass_frequency']; - } - break; - - default: - break; - } - break; - } - } - - if (isset($thisfile_mpeg_audio_lame['raw']['source_sample_freq'])) { - if (($thisfile_mpeg_audio['sample_rate'] == 44100) && ($thisfile_mpeg_audio_lame['raw']['source_sample_freq'] != 1)) { - $encoder_options .= ' --resample 44100'; - } elseif (($thisfile_mpeg_audio['sample_rate'] == 48000) && ($thisfile_mpeg_audio_lame['raw']['source_sample_freq'] != 2)) { - $encoder_options .= ' --resample 48000'; - } elseif ($thisfile_mpeg_audio['sample_rate'] < 44100) { - switch ($thisfile_mpeg_audio_lame['raw']['source_sample_freq']) { - case 0: // <= 32000 - // may or may not be same as source frequency - ignore - break; - case 1: // 44100 - case 2: // 48000 - case 3: // 48000+ - $ExplodedOptions = explode(' ', $encoder_options, 4); - switch ($ExplodedOptions[0]) { - case '--preset': - case '--alt-preset': - switch ($ExplodedOptions[1]) { - case 'fast': - case 'portable': - case 'medium': - case 'standard': - case 'extreme': - case 'insane': - $encoder_options .= ' --resample '.$thisfile_mpeg_audio['sample_rate']; - break; - - default: - static $ExpectedResampledRate = array( - 'phon+/lw/mw-eu/sw|16000' => 16000, - 'mw-us|24000' => 24000, // 3.95 - 'mw-us|32000' => 32000, // 3.93 - 'mw-us|16000' => 16000, // 3.92 - 'phone|16000' => 16000, - 'phone|11025' => 11025, // 3.94a15 - 'radio|32000' => 32000, // 3.94a15 - 'fm/radio|32000' => 32000, // 3.92 - 'fm|32000' => 32000, // 3.90 - 'voice|32000' => 32000); - if (!isset($ExpectedResampledRate[$ExplodedOptions[1].'|'.$thisfile_mpeg_audio['sample_rate']])) { - $encoder_options .= ' --resample '.$thisfile_mpeg_audio['sample_rate']; - } - break; - } - break; - - case '--r3mix': - default: - $encoder_options .= ' --resample '.$thisfile_mpeg_audio['sample_rate']; - break; - } - break; - } - } - } - if (empty($encoder_options) && !empty($info['audio']['bitrate']) && !empty($info['audio']['bitrate_mode'])) { - //$encoder_options = strtoupper($info['audio']['bitrate_mode']).ceil($info['audio']['bitrate'] / 1000); - $encoder_options = strtoupper($info['audio']['bitrate_mode']); - } - - return $encoder_options; - } - - /** - * @param int $offset - * @param array $info - * @param bool $recursivesearch - * @param bool $ScanAsCBR - * @param bool $FastMPEGheaderScan - * - * @return bool - */ - public function decodeMPEGaudioHeader($offset, &$info, $recursivesearch=true, $ScanAsCBR=false, $FastMPEGheaderScan=false) { - static $MPEGaudioVersionLookup; - static $MPEGaudioLayerLookup; - static $MPEGaudioBitrateLookup; - static $MPEGaudioFrequencyLookup; - static $MPEGaudioChannelModeLookup; - static $MPEGaudioModeExtensionLookup; - static $MPEGaudioEmphasisLookup; - if (empty($MPEGaudioVersionLookup)) { - $MPEGaudioVersionLookup = self::MPEGaudioVersionArray(); - $MPEGaudioLayerLookup = self::MPEGaudioLayerArray(); - $MPEGaudioBitrateLookup = self::MPEGaudioBitrateArray(); - $MPEGaudioFrequencyLookup = self::MPEGaudioFrequencyArray(); - $MPEGaudioChannelModeLookup = self::MPEGaudioChannelModeArray(); - $MPEGaudioModeExtensionLookup = self::MPEGaudioModeExtensionArray(); - $MPEGaudioEmphasisLookup = self::MPEGaudioEmphasisArray(); - } - - if ($this->fseek($offset) != 0) { - $this->error('decodeMPEGaudioHeader() failed to seek to next offset at '.$offset); - return false; - } - //$headerstring = $this->fread(1441); // worst-case max length = 32kHz @ 320kbps layer 3 = 1441 bytes/frame - $headerstring = $this->fread(226); // LAME header at offset 36 + 190 bytes of Xing/LAME data - - // MP3 audio frame structure: - // $aa $aa $aa $aa [$bb $bb] $cc... - // where $aa..$aa is the four-byte mpeg-audio header (below) - // $bb $bb is the optional 2-byte CRC - // and $cc... is the audio data - - $head4 = substr($headerstring, 0, 4); - $head4_key = getid3_lib::PrintHexBytes($head4, true, false, false); - static $MPEGaudioHeaderDecodeCache = array(); - if (isset($MPEGaudioHeaderDecodeCache[$head4_key])) { - $MPEGheaderRawArray = $MPEGaudioHeaderDecodeCache[$head4_key]; - } else { - $MPEGheaderRawArray = self::MPEGaudioHeaderDecode($head4); - $MPEGaudioHeaderDecodeCache[$head4_key] = $MPEGheaderRawArray; - } - - static $MPEGaudioHeaderValidCache = array(); - if (!isset($MPEGaudioHeaderValidCache[$head4_key])) { // Not in cache - //$MPEGaudioHeaderValidCache[$head4_key] = self::MPEGaudioHeaderValid($MPEGheaderRawArray, false, true); // allow badly-formatted freeformat (from LAME 3.90 - 3.93.1) - $MPEGaudioHeaderValidCache[$head4_key] = self::MPEGaudioHeaderValid($MPEGheaderRawArray, false, false); - } - - // shortcut - if (!isset($info['mpeg']['audio'])) { - $info['mpeg']['audio'] = array(); - } - $thisfile_mpeg_audio = &$info['mpeg']['audio']; - - if ($MPEGaudioHeaderValidCache[$head4_key]) { - $thisfile_mpeg_audio['raw'] = $MPEGheaderRawArray; - } else { - $this->error('Invalid MPEG audio header ('.getid3_lib::PrintHexBytes($head4).') at offset '.$offset); - return false; - } - - if (!$FastMPEGheaderScan) { - $thisfile_mpeg_audio['version'] = $MPEGaudioVersionLookup[$thisfile_mpeg_audio['raw']['version']]; - $thisfile_mpeg_audio['layer'] = $MPEGaudioLayerLookup[$thisfile_mpeg_audio['raw']['layer']]; - - $thisfile_mpeg_audio['channelmode'] = $MPEGaudioChannelModeLookup[$thisfile_mpeg_audio['raw']['channelmode']]; - $thisfile_mpeg_audio['channels'] = (($thisfile_mpeg_audio['channelmode'] == 'mono') ? 1 : 2); - $thisfile_mpeg_audio['sample_rate'] = $MPEGaudioFrequencyLookup[$thisfile_mpeg_audio['version']][$thisfile_mpeg_audio['raw']['sample_rate']]; - $thisfile_mpeg_audio['protection'] = !$thisfile_mpeg_audio['raw']['protection']; - $thisfile_mpeg_audio['private'] = (bool) $thisfile_mpeg_audio['raw']['private']; - $thisfile_mpeg_audio['modeextension'] = $MPEGaudioModeExtensionLookup[$thisfile_mpeg_audio['layer']][$thisfile_mpeg_audio['raw']['modeextension']]; - $thisfile_mpeg_audio['copyright'] = (bool) $thisfile_mpeg_audio['raw']['copyright']; - $thisfile_mpeg_audio['original'] = (bool) $thisfile_mpeg_audio['raw']['original']; - $thisfile_mpeg_audio['emphasis'] = $MPEGaudioEmphasisLookup[$thisfile_mpeg_audio['raw']['emphasis']]; - - $info['audio']['channels'] = $thisfile_mpeg_audio['channels']; - $info['audio']['sample_rate'] = $thisfile_mpeg_audio['sample_rate']; - - if ($thisfile_mpeg_audio['protection']) { - $thisfile_mpeg_audio['crc'] = getid3_lib::BigEndian2Int(substr($headerstring, 4, 2)); - } - } - - if ($thisfile_mpeg_audio['raw']['bitrate'] == 15) { - // http://www.hydrogenaudio.org/?act=ST&f=16&t=9682&st=0 - $this->warning('Invalid bitrate index (15), this is a known bug in free-format MP3s encoded by LAME v3.90 - 3.93.1'); - $thisfile_mpeg_audio['raw']['bitrate'] = 0; - } - $thisfile_mpeg_audio['padding'] = (bool) $thisfile_mpeg_audio['raw']['padding']; - $thisfile_mpeg_audio['bitrate'] = $MPEGaudioBitrateLookup[$thisfile_mpeg_audio['version']][$thisfile_mpeg_audio['layer']][$thisfile_mpeg_audio['raw']['bitrate']]; - - if (($thisfile_mpeg_audio['bitrate'] == 'free') && ($offset == $info['avdataoffset'])) { - // only skip multiple frame check if free-format bitstream found at beginning of file - // otherwise is quite possibly simply corrupted data - $recursivesearch = false; - } - - // For Layer 2 there are some combinations of bitrate and mode which are not allowed. - if (!$FastMPEGheaderScan && ($thisfile_mpeg_audio['layer'] == '2')) { - - $info['audio']['dataformat'] = 'mp2'; - switch ($thisfile_mpeg_audio['channelmode']) { - - case 'mono': - if (($thisfile_mpeg_audio['bitrate'] == 'free') || ($thisfile_mpeg_audio['bitrate'] <= 192000)) { - // these are ok - } else { - $this->error($thisfile_mpeg_audio['bitrate'].'kbps not allowed in Layer 2, '.$thisfile_mpeg_audio['channelmode'].'.'); - return false; - } - break; - - case 'stereo': - case 'joint stereo': - case 'dual channel': - if (($thisfile_mpeg_audio['bitrate'] == 'free') || ($thisfile_mpeg_audio['bitrate'] == 64000) || ($thisfile_mpeg_audio['bitrate'] >= 96000)) { - // these are ok - } else { - $this->error(intval(round($thisfile_mpeg_audio['bitrate'] / 1000)).'kbps not allowed in Layer 2, '.$thisfile_mpeg_audio['channelmode'].'.'); - return false; - } - break; - - } - - } - - - if ($info['audio']['sample_rate'] > 0) { - $thisfile_mpeg_audio['framelength'] = self::MPEGaudioFrameLength($thisfile_mpeg_audio['bitrate'], $thisfile_mpeg_audio['version'], $thisfile_mpeg_audio['layer'], (int) $thisfile_mpeg_audio['padding'], $info['audio']['sample_rate']); - } - - $nextframetestoffset = $offset + 1; - if ($thisfile_mpeg_audio['bitrate'] != 'free') { - - $info['audio']['bitrate'] = $thisfile_mpeg_audio['bitrate']; - - if (isset($thisfile_mpeg_audio['framelength'])) { - $nextframetestoffset = $offset + $thisfile_mpeg_audio['framelength']; - } else { - $this->error('Frame at offset('.$offset.') is has an invalid frame length.'); - return false; - } - - } - - $ExpectedNumberOfAudioBytes = 0; - - //////////////////////////////////////////////////////////////////////////////////// - // Variable-bitrate headers - - if (substr($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 - - $thisfile_mpeg_audio['bitrate_mode'] = 'vbr'; - $thisfile_mpeg_audio['VBR_method'] = 'Fraunhofer'; - $info['audio']['codec'] = 'Fraunhofer'; - - $SideInfoData = substr($headerstring, 4 + 2, 32); - - $FraunhoferVBROffset = 36; - - $thisfile_mpeg_audio['VBR_encoder_version'] = getid3_lib::BigEndian2Int(substr($headerstring, $FraunhoferVBROffset + 4, 2)); // VbriVersion - $thisfile_mpeg_audio['VBR_encoder_delay'] = getid3_lib::BigEndian2Int(substr($headerstring, $FraunhoferVBROffset + 6, 2)); // VbriDelay - $thisfile_mpeg_audio['VBR_quality'] = getid3_lib::BigEndian2Int(substr($headerstring, $FraunhoferVBROffset + 8, 2)); // VbriQuality - $thisfile_mpeg_audio['VBR_bytes'] = getid3_lib::BigEndian2Int(substr($headerstring, $FraunhoferVBROffset + 10, 4)); // VbriStreamBytes - $thisfile_mpeg_audio['VBR_frames'] = getid3_lib::BigEndian2Int(substr($headerstring, $FraunhoferVBROffset + 14, 4)); // VbriStreamFrames - $thisfile_mpeg_audio['VBR_seek_offsets'] = getid3_lib::BigEndian2Int(substr($headerstring, $FraunhoferVBROffset + 18, 2)); // VbriTableSize - $thisfile_mpeg_audio['VBR_seek_scale'] = getid3_lib::BigEndian2Int(substr($headerstring, $FraunhoferVBROffset + 20, 2)); // VbriTableScale - $thisfile_mpeg_audio['VBR_entry_bytes'] = getid3_lib::BigEndian2Int(substr($headerstring, $FraunhoferVBROffset + 22, 2)); // VbriEntryBytes - $thisfile_mpeg_audio['VBR_entry_frames'] = getid3_lib::BigEndian2Int(substr($headerstring, $FraunhoferVBROffset + 24, 2)); // VbriEntryFrames - - $ExpectedNumberOfAudioBytes = $thisfile_mpeg_audio['VBR_bytes']; - - $previousbyteoffset = $offset; - for ($i = 0; $i < $thisfile_mpeg_audio['VBR_seek_offsets']; $i++) { - $Fraunhofer_OffsetN = getid3_lib::BigEndian2Int(substr($headerstring, $FraunhoferVBROffset, $thisfile_mpeg_audio['VBR_entry_bytes'])); - $FraunhoferVBROffset += $thisfile_mpeg_audio['VBR_entry_bytes']; - $thisfile_mpeg_audio['VBR_offsets_relative'][$i] = ($Fraunhofer_OffsetN * $thisfile_mpeg_audio['VBR_seek_scale']); - $thisfile_mpeg_audio['VBR_offsets_absolute'][$i] = ($Fraunhofer_OffsetN * $thisfile_mpeg_audio['VBR_seek_scale']) + $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 - - $VBRidOffset = self::XingVBRidOffset($thisfile_mpeg_audio['version'], $thisfile_mpeg_audio['channelmode']); - $SideInfoData = substr($headerstring, 4 + 2, $VBRidOffset - 4); - - if ((substr($headerstring, $VBRidOffset, strlen('Xing')) == 'Xing') || (substr($headerstring, $VBRidOffset, strlen('Info')) == 'Info')) { - // 'Xing' is traditional Xing VBR frame - // 'Info' is LAME-encoded CBR (This was done to avoid CBR files to be recognized as traditional Xing VBR files by some decoders.) - // 'Info' *can* legally be used to specify a VBR file as well, however. - - // http://www.multiweb.cz/twoinches/MP3inside.htm - //00..03 = "Xing" or "Info" - //04..07 = Flags: - // 0x01 Frames Flag set if value for number of frames in file is stored - // 0x02 Bytes Flag set if value for filesize in bytes is stored - // 0x04 TOC Flag set if values for TOC are stored - // 0x08 VBR Scale Flag set if values for VBR scale is stored - //08..11 Frames: Number of frames in file (including the first Xing/Info one) - //12..15 Bytes: File length in Bytes - //16..115 TOC (Table of Contents): - // Contains of 100 indexes (one Byte length) for easier lookup in file. Approximately solves problem with moving inside file. - // Each Byte has a value according this formula: - // (TOC[i] / 256) * fileLenInBytes - // So if song lasts eg. 240 sec. and you want to jump to 60. sec. (and file is 5 000 000 Bytes length) you can use: - // TOC[(60/240)*100] = TOC[25] - // and corresponding Byte in file is then approximately at: - // (TOC[25]/256) * 5000000 - //116..119 VBR Scale - - - // should be safe to leave this at 'vbr' and let it be overriden to 'cbr' if a CBR preset/mode is used by LAME -// if (substr($headerstring, $VBRidOffset, strlen('Info')) == 'Xing') { - $thisfile_mpeg_audio['bitrate_mode'] = 'vbr'; - $thisfile_mpeg_audio['VBR_method'] = 'Xing'; -// } else { -// $ScanAsCBR = true; -// $thisfile_mpeg_audio['bitrate_mode'] = 'cbr'; -// } - - $thisfile_mpeg_audio['xing_flags_raw'] = getid3_lib::BigEndian2Int(substr($headerstring, $VBRidOffset + 4, 4)); - - $thisfile_mpeg_audio['xing_flags']['frames'] = (bool) ($thisfile_mpeg_audio['xing_flags_raw'] & 0x00000001); - $thisfile_mpeg_audio['xing_flags']['bytes'] = (bool) ($thisfile_mpeg_audio['xing_flags_raw'] & 0x00000002); - $thisfile_mpeg_audio['xing_flags']['toc'] = (bool) ($thisfile_mpeg_audio['xing_flags_raw'] & 0x00000004); - $thisfile_mpeg_audio['xing_flags']['vbr_scale'] = (bool) ($thisfile_mpeg_audio['xing_flags_raw'] & 0x00000008); - - if ($thisfile_mpeg_audio['xing_flags']['frames']) { - $thisfile_mpeg_audio['VBR_frames'] = getid3_lib::BigEndian2Int(substr($headerstring, $VBRidOffset + 8, 4)); - //$thisfile_mpeg_audio['VBR_frames']--; // don't count header Xing/Info frame - } - if ($thisfile_mpeg_audio['xing_flags']['bytes']) { - $thisfile_mpeg_audio['VBR_bytes'] = getid3_lib::BigEndian2Int(substr($headerstring, $VBRidOffset + 12, 4)); - } - - //if (($thisfile_mpeg_audio['bitrate'] == 'free') && !empty($thisfile_mpeg_audio['VBR_frames']) && !empty($thisfile_mpeg_audio['VBR_bytes'])) { - //if (!empty($thisfile_mpeg_audio['VBR_frames']) && !empty($thisfile_mpeg_audio['VBR_bytes'])) { - if (!empty($thisfile_mpeg_audio['VBR_frames'])) { - $used_filesize = 0; - if (!empty($thisfile_mpeg_audio['VBR_bytes'])) { - $used_filesize = $thisfile_mpeg_audio['VBR_bytes']; - } elseif (!empty($info['filesize'])) { - $used_filesize = $info['filesize']; - $used_filesize -= (isset($info['id3v2']['headerlength']) ? intval($info['id3v2']['headerlength']) : 0); - $used_filesize -= (isset($info['id3v1']) ? 128 : 0); - $used_filesize -= (isset($info['tag_offset_end']) ? $info['tag_offset_end'] - $info['tag_offset_start'] : 0); - $this->warning('MP3.Xing header missing VBR_bytes, assuming MPEG audio portion of file is '.number_format($used_filesize).' bytes'); - } - - $framelengthfloat = $used_filesize / $thisfile_mpeg_audio['VBR_frames']; - - if ($thisfile_mpeg_audio['layer'] == '1') { - // BitRate = (((FrameLengthInBytes / 4) - Padding) * SampleRate) / 12 - //$info['audio']['bitrate'] = ((($framelengthfloat / 4) - intval($thisfile_mpeg_audio['padding'])) * $thisfile_mpeg_audio['sample_rate']) / 12; - $info['audio']['bitrate'] = ($framelengthfloat / 4) * $thisfile_mpeg_audio['sample_rate'] * (2 / $info['audio']['channels']) / 12; - } else { - // Bitrate = ((FrameLengthInBytes - Padding) * SampleRate) / 144 - //$info['audio']['bitrate'] = (($framelengthfloat - intval($thisfile_mpeg_audio['padding'])) * $thisfile_mpeg_audio['sample_rate']) / 144; - $info['audio']['bitrate'] = $framelengthfloat * $thisfile_mpeg_audio['sample_rate'] * (2 / $info['audio']['channels']) / 144; - } - $thisfile_mpeg_audio['framelength'] = floor($framelengthfloat); - } - - if ($thisfile_mpeg_audio['xing_flags']['toc']) { - $LAMEtocData = substr($headerstring, $VBRidOffset + 16, 100); - for ($i = 0; $i < 100; $i++) { - $thisfile_mpeg_audio['toc'][$i] = ord($LAMEtocData[$i]); - } - } - if ($thisfile_mpeg_audio['xing_flags']['vbr_scale']) { - $thisfile_mpeg_audio['VBR_scale'] = getid3_lib::BigEndian2Int(substr($headerstring, $VBRidOffset + 116, 4)); - } - - - // http://gabriel.mp3-tech.org/mp3infotag.html - if (substr($headerstring, $VBRidOffset + 120, 4) == 'LAME') { - - // shortcut - $thisfile_mpeg_audio['LAME'] = array(); - $thisfile_mpeg_audio_lame = &$thisfile_mpeg_audio['LAME']; - - - $thisfile_mpeg_audio_lame['long_version'] = substr($headerstring, $VBRidOffset + 120, 20); - $thisfile_mpeg_audio_lame['short_version'] = substr($thisfile_mpeg_audio_lame['long_version'], 0, 9); - - if ($thisfile_mpeg_audio_lame['short_version'] >= 'LAME3.90') { - - // extra 11 chars are not part of version string when LAMEtag present - unset($thisfile_mpeg_audio_lame['long_version']); - - // It the LAME tag was only introduced in LAME v3.90 - // http://www.hydrogenaudio.org/?act=ST&f=15&t=9933 - - // Offsets of various bytes in http://gabriel.mp3-tech.org/mp3infotag.html - // are assuming a 'Xing' identifier offset of 0x24, which is the case for - // MPEG-1 non-mono, but not for other combinations - $LAMEtagOffsetContant = $VBRidOffset - 0x24; - - // shortcuts - $thisfile_mpeg_audio_lame['RGAD'] = array('track'=>array(), 'album'=>array()); - $thisfile_mpeg_audio_lame_RGAD = &$thisfile_mpeg_audio_lame['RGAD']; - $thisfile_mpeg_audio_lame_RGAD_track = &$thisfile_mpeg_audio_lame_RGAD['track']; - $thisfile_mpeg_audio_lame_RGAD_album = &$thisfile_mpeg_audio_lame_RGAD['album']; - $thisfile_mpeg_audio_lame['raw'] = array(); - $thisfile_mpeg_audio_lame_raw = &$thisfile_mpeg_audio_lame['raw']; - - // byte $9B VBR Quality - // This field is there to indicate a quality level, although the scale was not precised in the original Xing specifications. - // Actually overwrites original Xing bytes - unset($thisfile_mpeg_audio['VBR_scale']); - $thisfile_mpeg_audio_lame['vbr_quality'] = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0x9B, 1)); - - // bytes $9C-$A4 Encoder short VersionString - $thisfile_mpeg_audio_lame['short_version'] = substr($headerstring, $LAMEtagOffsetContant + 0x9C, 9); - - // byte $A5 Info Tag revision + VBR method - $LAMEtagRevisionVBRmethod = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xA5, 1)); - - $thisfile_mpeg_audio_lame['tag_revision'] = ($LAMEtagRevisionVBRmethod & 0xF0) >> 4; - $thisfile_mpeg_audio_lame_raw['vbr_method'] = $LAMEtagRevisionVBRmethod & 0x0F; - $thisfile_mpeg_audio_lame['vbr_method'] = self::LAMEvbrMethodLookup($thisfile_mpeg_audio_lame_raw['vbr_method']); - $thisfile_mpeg_audio['bitrate_mode'] = substr($thisfile_mpeg_audio_lame['vbr_method'], 0, 3); // usually either 'cbr' or 'vbr', but truncates 'vbr-old / vbr-rh' to 'vbr' - - // byte $A6 Lowpass filter value - $thisfile_mpeg_audio_lame['lowpass_frequency'] = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xA6, 1)) * 100; - - // bytes $A7-$AE Replay Gain - // http://privatewww.essex.ac.uk/~djmrob/replaygain/rg_data_format.html - // bytes $A7-$AA : 32 bit floating point "Peak signal amplitude" - if ($thisfile_mpeg_audio_lame['short_version'] >= 'LAME3.94b') { - // LAME 3.94a16 and later - 9.23 fixed point - // ie 0x0059E2EE / (2^23) = 5890798 / 8388608 = 0.7022378444671630859375 - $thisfile_mpeg_audio_lame_RGAD['peak_amplitude'] = (float) ((getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xA7, 4))) / 8388608); - } else { - // LAME 3.94a15 and earlier - 32-bit floating point - // Actually 3.94a16 will fall in here too and be WRONG, but is hard to detect 3.94a16 vs 3.94a15 - $thisfile_mpeg_audio_lame_RGAD['peak_amplitude'] = getid3_lib::LittleEndian2Float(substr($headerstring, $LAMEtagOffsetContant + 0xA7, 4)); - } - if ($thisfile_mpeg_audio_lame_RGAD['peak_amplitude'] == 0) { - unset($thisfile_mpeg_audio_lame_RGAD['peak_amplitude']); - } else { - $thisfile_mpeg_audio_lame_RGAD['peak_db'] = getid3_lib::RGADamplitude2dB($thisfile_mpeg_audio_lame_RGAD['peak_amplitude']); - } - - $thisfile_mpeg_audio_lame_raw['RGAD_track'] = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xAB, 2)); - $thisfile_mpeg_audio_lame_raw['RGAD_album'] = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xAD, 2)); - - - if ($thisfile_mpeg_audio_lame_raw['RGAD_track'] != 0) { - - $thisfile_mpeg_audio_lame_RGAD_track['raw']['name'] = ($thisfile_mpeg_audio_lame_raw['RGAD_track'] & 0xE000) >> 13; - $thisfile_mpeg_audio_lame_RGAD_track['raw']['originator'] = ($thisfile_mpeg_audio_lame_raw['RGAD_track'] & 0x1C00) >> 10; - $thisfile_mpeg_audio_lame_RGAD_track['raw']['sign_bit'] = ($thisfile_mpeg_audio_lame_raw['RGAD_track'] & 0x0200) >> 9; - $thisfile_mpeg_audio_lame_RGAD_track['raw']['gain_adjust'] = $thisfile_mpeg_audio_lame_raw['RGAD_track'] & 0x01FF; - $thisfile_mpeg_audio_lame_RGAD_track['name'] = getid3_lib::RGADnameLookup($thisfile_mpeg_audio_lame_RGAD_track['raw']['name']); - $thisfile_mpeg_audio_lame_RGAD_track['originator'] = getid3_lib::RGADoriginatorLookup($thisfile_mpeg_audio_lame_RGAD_track['raw']['originator']); - $thisfile_mpeg_audio_lame_RGAD_track['gain_db'] = getid3_lib::RGADadjustmentLookup($thisfile_mpeg_audio_lame_RGAD_track['raw']['gain_adjust'], $thisfile_mpeg_audio_lame_RGAD_track['raw']['sign_bit']); - - if (!empty($thisfile_mpeg_audio_lame_RGAD['peak_amplitude'])) { - $info['replay_gain']['track']['peak'] = $thisfile_mpeg_audio_lame_RGAD['peak_amplitude']; - } - $info['replay_gain']['track']['originator'] = $thisfile_mpeg_audio_lame_RGAD_track['originator']; - $info['replay_gain']['track']['adjustment'] = $thisfile_mpeg_audio_lame_RGAD_track['gain_db']; - } else { - unset($thisfile_mpeg_audio_lame_RGAD['track']); - } - if ($thisfile_mpeg_audio_lame_raw['RGAD_album'] != 0) { - - $thisfile_mpeg_audio_lame_RGAD_album['raw']['name'] = ($thisfile_mpeg_audio_lame_raw['RGAD_album'] & 0xE000) >> 13; - $thisfile_mpeg_audio_lame_RGAD_album['raw']['originator'] = ($thisfile_mpeg_audio_lame_raw['RGAD_album'] & 0x1C00) >> 10; - $thisfile_mpeg_audio_lame_RGAD_album['raw']['sign_bit'] = ($thisfile_mpeg_audio_lame_raw['RGAD_album'] & 0x0200) >> 9; - $thisfile_mpeg_audio_lame_RGAD_album['raw']['gain_adjust'] = $thisfile_mpeg_audio_lame_raw['RGAD_album'] & 0x01FF; - $thisfile_mpeg_audio_lame_RGAD_album['name'] = getid3_lib::RGADnameLookup($thisfile_mpeg_audio_lame_RGAD_album['raw']['name']); - $thisfile_mpeg_audio_lame_RGAD_album['originator'] = getid3_lib::RGADoriginatorLookup($thisfile_mpeg_audio_lame_RGAD_album['raw']['originator']); - $thisfile_mpeg_audio_lame_RGAD_album['gain_db'] = getid3_lib::RGADadjustmentLookup($thisfile_mpeg_audio_lame_RGAD_album['raw']['gain_adjust'], $thisfile_mpeg_audio_lame_RGAD_album['raw']['sign_bit']); - - if (!empty($thisfile_mpeg_audio_lame_RGAD['peak_amplitude'])) { - $info['replay_gain']['album']['peak'] = $thisfile_mpeg_audio_lame_RGAD['peak_amplitude']; - } - $info['replay_gain']['album']['originator'] = $thisfile_mpeg_audio_lame_RGAD_album['originator']; - $info['replay_gain']['album']['adjustment'] = $thisfile_mpeg_audio_lame_RGAD_album['gain_db']; - } else { - unset($thisfile_mpeg_audio_lame_RGAD['album']); - } - if (empty($thisfile_mpeg_audio_lame_RGAD)) { - unset($thisfile_mpeg_audio_lame['RGAD']); - } - - - // byte $AF Encoding flags + ATH Type - $EncodingFlagsATHtype = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xAF, 1)); - $thisfile_mpeg_audio_lame['encoding_flags']['nspsytune'] = (bool) ($EncodingFlagsATHtype & 0x10); - $thisfile_mpeg_audio_lame['encoding_flags']['nssafejoint'] = (bool) ($EncodingFlagsATHtype & 0x20); - $thisfile_mpeg_audio_lame['encoding_flags']['nogap_next'] = (bool) ($EncodingFlagsATHtype & 0x40); - $thisfile_mpeg_audio_lame['encoding_flags']['nogap_prev'] = (bool) ($EncodingFlagsATHtype & 0x80); - $thisfile_mpeg_audio_lame['ath_type'] = $EncodingFlagsATHtype & 0x0F; - - // byte $B0 if ABR {specified bitrate} else {minimal bitrate} - $thisfile_mpeg_audio_lame['raw']['abrbitrate_minbitrate'] = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xB0, 1)); - if ($thisfile_mpeg_audio_lame_raw['vbr_method'] == 2) { // Average BitRate (ABR) - $thisfile_mpeg_audio_lame['bitrate_abr'] = $thisfile_mpeg_audio_lame['raw']['abrbitrate_minbitrate']; - } elseif ($thisfile_mpeg_audio_lame_raw['vbr_method'] == 1) { // Constant BitRate (CBR) - // ignore - } elseif ($thisfile_mpeg_audio_lame['raw']['abrbitrate_minbitrate'] > 0) { // Variable BitRate (VBR) - minimum bitrate - $thisfile_mpeg_audio_lame['bitrate_min'] = $thisfile_mpeg_audio_lame['raw']['abrbitrate_minbitrate']; - } - - // bytes $B1-$B3 Encoder delays - $EncoderDelays = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xB1, 3)); - $thisfile_mpeg_audio_lame['encoder_delay'] = ($EncoderDelays & 0xFFF000) >> 12; - $thisfile_mpeg_audio_lame['end_padding'] = $EncoderDelays & 0x000FFF; - - // byte $B4 Misc - $MiscByte = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xB4, 1)); - $thisfile_mpeg_audio_lame_raw['noise_shaping'] = ($MiscByte & 0x03); - $thisfile_mpeg_audio_lame_raw['stereo_mode'] = ($MiscByte & 0x1C) >> 2; - $thisfile_mpeg_audio_lame_raw['not_optimal_quality'] = ($MiscByte & 0x20) >> 5; - $thisfile_mpeg_audio_lame_raw['source_sample_freq'] = ($MiscByte & 0xC0) >> 6; - $thisfile_mpeg_audio_lame['noise_shaping'] = $thisfile_mpeg_audio_lame_raw['noise_shaping']; - $thisfile_mpeg_audio_lame['stereo_mode'] = self::LAMEmiscStereoModeLookup($thisfile_mpeg_audio_lame_raw['stereo_mode']); - $thisfile_mpeg_audio_lame['not_optimal_quality'] = (bool) $thisfile_mpeg_audio_lame_raw['not_optimal_quality']; - $thisfile_mpeg_audio_lame['source_sample_freq'] = self::LAMEmiscSourceSampleFrequencyLookup($thisfile_mpeg_audio_lame_raw['source_sample_freq']); - - // byte $B5 MP3 Gain - $thisfile_mpeg_audio_lame_raw['mp3_gain'] = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xB5, 1), false, true); - $thisfile_mpeg_audio_lame['mp3_gain_db'] = (getid3_lib::RGADamplitude2dB(2) / 4) * $thisfile_mpeg_audio_lame_raw['mp3_gain']; - $thisfile_mpeg_audio_lame['mp3_gain_factor'] = pow(2, ($thisfile_mpeg_audio_lame['mp3_gain_db'] / 6)); - - // bytes $B6-$B7 Preset and surround info - $PresetSurroundBytes = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xB6, 2)); - // Reserved = ($PresetSurroundBytes & 0xC000); - $thisfile_mpeg_audio_lame_raw['surround_info'] = ($PresetSurroundBytes & 0x3800); - $thisfile_mpeg_audio_lame['surround_info'] = self::LAMEsurroundInfoLookup($thisfile_mpeg_audio_lame_raw['surround_info']); - $thisfile_mpeg_audio_lame['preset_used_id'] = ($PresetSurroundBytes & 0x07FF); - $thisfile_mpeg_audio_lame['preset_used'] = self::LAMEpresetUsedLookup($thisfile_mpeg_audio_lame); - if (!empty($thisfile_mpeg_audio_lame['preset_used_id']) && empty($thisfile_mpeg_audio_lame['preset_used'])) { - $this->warning('Unknown LAME preset used ('.$thisfile_mpeg_audio_lame['preset_used_id'].') - please report to info@getid3.org'); - } - if (($thisfile_mpeg_audio_lame['short_version'] == 'LAME3.90.') && !empty($thisfile_mpeg_audio_lame['preset_used_id'])) { - // this may change if 3.90.4 ever comes out - $thisfile_mpeg_audio_lame['short_version'] = 'LAME3.90.3'; - } - - // bytes $B8-$BB MusicLength - $thisfile_mpeg_audio_lame['audio_bytes'] = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xB8, 4)); - $ExpectedNumberOfAudioBytes = (($thisfile_mpeg_audio_lame['audio_bytes'] > 0) ? $thisfile_mpeg_audio_lame['audio_bytes'] : $thisfile_mpeg_audio['VBR_bytes']); - - // bytes $BC-$BD MusicCRC - $thisfile_mpeg_audio_lame['music_crc'] = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xBC, 2)); - - // bytes $BE-$BF CRC-16 of Info Tag - $thisfile_mpeg_audio_lame['lame_tag_crc'] = getid3_lib::BigEndian2Int(substr($headerstring, $LAMEtagOffsetContant + 0xBE, 2)); - - - // LAME CBR - if ($thisfile_mpeg_audio_lame_raw['vbr_method'] == 1) { - - $thisfile_mpeg_audio['bitrate_mode'] = 'cbr'; - $thisfile_mpeg_audio['bitrate'] = self::ClosestStandardMP3Bitrate($thisfile_mpeg_audio['bitrate']); - $info['audio']['bitrate'] = $thisfile_mpeg_audio['bitrate']; - //if (empty($thisfile_mpeg_audio['bitrate']) || (!empty($thisfile_mpeg_audio_lame['bitrate_min']) && ($thisfile_mpeg_audio_lame['bitrate_min'] != 255))) { - // $thisfile_mpeg_audio['bitrate'] = $thisfile_mpeg_audio_lame['bitrate_min']; - //} - - } - - } - } - - } else { - - // not Fraunhofer or Xing VBR methods, most likely CBR (but could be VBR with no header) - $thisfile_mpeg_audio['bitrate_mode'] = 'cbr'; - if ($recursivesearch) { - $thisfile_mpeg_audio['bitrate_mode'] = 'vbr'; - if ($this->RecursiveFrameScanning($offset, $nextframetestoffset, true)) { - $recursivesearch = false; - $thisfile_mpeg_audio['bitrate_mode'] = 'cbr'; - } - if ($thisfile_mpeg_audio['bitrate_mode'] == 'vbr') { - $this->warning('VBR file with no VBR header. Bitrate values calculated from actual frame bitrates.'); - } - } - - } - - } - - if (($ExpectedNumberOfAudioBytes > 0) && ($ExpectedNumberOfAudioBytes != ($info['avdataend'] - $info['avdataoffset']))) { - if ($ExpectedNumberOfAudioBytes > ($info['avdataend'] - $info['avdataoffset'])) { - if ($this->isDependencyFor('matroska') || $this->isDependencyFor('riff')) { - // ignore, audio data is broken into chunks so will always be data "missing" - } - elseif (($ExpectedNumberOfAudioBytes - ($info['avdataend'] - $info['avdataoffset'])) == 1) { - $this->warning('Last byte of data truncated (this is a known bug in Meracl ID3 Tag Writer before v1.3.5)'); - } - else { - $this->warning('Probable truncated file: expecting '.$ExpectedNumberOfAudioBytes.' bytes of audio data, only found '.($info['avdataend'] - $info['avdataoffset']).' (short by '.($ExpectedNumberOfAudioBytes - ($info['avdataend'] - $info['avdataoffset'])).' bytes)'); - } - } else { - if ((($info['avdataend'] - $info['avdataoffset']) - $ExpectedNumberOfAudioBytes) == 1) { - // $prenullbytefileoffset = $this->ftell(); - // $this->fseek($info['avdataend']); - // $PossibleNullByte = $this->fread(1); - // $this->fseek($prenullbytefileoffset); - // if ($PossibleNullByte === "\x00") { - $info['avdataend']--; - // $this->warning('Extra null byte at end of MP3 data assumed to be RIFF padding and therefore ignored'); - // } else { - // $this->warning('Too much data in file: expecting '.$ExpectedNumberOfAudioBytes.' bytes of audio data, found '.($info['avdataend'] - $info['avdataoffset']).' ('.(($info['avdataend'] - $info['avdataoffset']) - $ExpectedNumberOfAudioBytes).' bytes too many)'); - // } - } else { - $this->warning('Too much data in file: expecting '.$ExpectedNumberOfAudioBytes.' bytes of audio data, found '.($info['avdataend'] - $info['avdataoffset']).' ('.(($info['avdataend'] - $info['avdataoffset']) - $ExpectedNumberOfAudioBytes).' bytes too many)'); - } - } - } - - if (($thisfile_mpeg_audio['bitrate'] == 'free') && empty($info['audio']['bitrate'])) { - if (($offset == $info['avdataoffset']) && empty($thisfile_mpeg_audio['VBR_frames'])) { - $framebytelength = $this->FreeFormatFrameLength($offset, true); - if ($framebytelength > 0) { - $thisfile_mpeg_audio['framelength'] = $framebytelength; - if ($thisfile_mpeg_audio['layer'] == '1') { - // BitRate = (((FrameLengthInBytes / 4) - Padding) * SampleRate) / 12 - $info['audio']['bitrate'] = ((($framebytelength / 4) - intval($thisfile_mpeg_audio['padding'])) * $thisfile_mpeg_audio['sample_rate']) / 12; - } else { - // Bitrate = ((FrameLengthInBytes - Padding) * SampleRate) / 144 - $info['audio']['bitrate'] = (($framebytelength - intval($thisfile_mpeg_audio['padding'])) * $thisfile_mpeg_audio['sample_rate']) / 144; - } - } else { - $this->error('Error calculating frame length of free-format MP3 without Xing/LAME header'); - } - } - } - - if (isset($thisfile_mpeg_audio['VBR_frames']) ? $thisfile_mpeg_audio['VBR_frames'] : '') { - switch ($thisfile_mpeg_audio['bitrate_mode']) { - case 'vbr': - case 'abr': - $bytes_per_frame = 1152; - if (($thisfile_mpeg_audio['version'] == '1') && ($thisfile_mpeg_audio['layer'] == 1)) { - $bytes_per_frame = 384; - } elseif ((($thisfile_mpeg_audio['version'] == '2') || ($thisfile_mpeg_audio['version'] == '2.5')) && ($thisfile_mpeg_audio['layer'] == 3)) { - $bytes_per_frame = 576; - } - $thisfile_mpeg_audio['VBR_bitrate'] = (isset($thisfile_mpeg_audio['VBR_bytes']) ? (($thisfile_mpeg_audio['VBR_bytes'] / $thisfile_mpeg_audio['VBR_frames']) * 8) * ($info['audio']['sample_rate'] / $bytes_per_frame) : 0); - if ($thisfile_mpeg_audio['VBR_bitrate'] > 0) { - $info['audio']['bitrate'] = $thisfile_mpeg_audio['VBR_bitrate']; - $thisfile_mpeg_audio['bitrate'] = $thisfile_mpeg_audio['VBR_bitrate']; // to avoid confusion - } - break; - } - } - - // End variable-bitrate headers - //////////////////////////////////////////////////////////////////////////////////// - - if ($recursivesearch) { - - if (!$this->RecursiveFrameScanning($offset, $nextframetestoffset, $ScanAsCBR)) { - return false; - } - - } - - - //if (false) { - // // experimental side info parsing section - not returning anything useful yet - // - // $SideInfoBitstream = getid3_lib::BigEndian2Bin($SideInfoData); - // $SideInfoOffset = 0; - // - // if ($thisfile_mpeg_audio['version'] == '1') { - // if ($thisfile_mpeg_audio['channelmode'] == 'mono') { - // // MPEG-1 (mono) - // $thisfile_mpeg_audio['side_info']['main_data_begin'] = substr($SideInfoBitstream, $SideInfoOffset, 9); - // $SideInfoOffset += 9; - // $SideInfoOffset += 5; - // } else { - // // MPEG-1 (stereo, joint-stereo, dual-channel) - // $thisfile_mpeg_audio['side_info']['main_data_begin'] = substr($SideInfoBitstream, $SideInfoOffset, 9); - // $SideInfoOffset += 9; - // $SideInfoOffset += 3; - // } - // } else { // 2 or 2.5 - // if ($thisfile_mpeg_audio['channelmode'] == 'mono') { - // // MPEG-2, MPEG-2.5 (mono) - // $thisfile_mpeg_audio['side_info']['main_data_begin'] = substr($SideInfoBitstream, $SideInfoOffset, 8); - // $SideInfoOffset += 8; - // $SideInfoOffset += 1; - // } else { - // // MPEG-2, MPEG-2.5 (stereo, joint-stereo, dual-channel) - // $thisfile_mpeg_audio['side_info']['main_data_begin'] = substr($SideInfoBitstream, $SideInfoOffset, 8); - // $SideInfoOffset += 8; - // $SideInfoOffset += 2; - // } - // } - // - // if ($thisfile_mpeg_audio['version'] == '1') { - // for ($channel = 0; $channel < $info['audio']['channels']; $channel++) { - // for ($scfsi_band = 0; $scfsi_band < 4; $scfsi_band++) { - // $thisfile_mpeg_audio['scfsi'][$channel][$scfsi_band] = substr($SideInfoBitstream, $SideInfoOffset, 1); - // $SideInfoOffset += 2; - // } - // } - // } - // for ($granule = 0; $granule < (($thisfile_mpeg_audio['version'] == '1') ? 2 : 1); $granule++) { - // for ($channel = 0; $channel < $info['audio']['channels']; $channel++) { - // $thisfile_mpeg_audio['part2_3_length'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 12); - // $SideInfoOffset += 12; - // $thisfile_mpeg_audio['big_values'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 9); - // $SideInfoOffset += 9; - // $thisfile_mpeg_audio['global_gain'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 8); - // $SideInfoOffset += 8; - // if ($thisfile_mpeg_audio['version'] == '1') { - // $thisfile_mpeg_audio['scalefac_compress'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 4); - // $SideInfoOffset += 4; - // } else { - // $thisfile_mpeg_audio['scalefac_compress'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 9); - // $SideInfoOffset += 9; - // } - // $thisfile_mpeg_audio['window_switching_flag'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 1); - // $SideInfoOffset += 1; - // - // if ($thisfile_mpeg_audio['window_switching_flag'][$granule][$channel] == '1') { - // - // $thisfile_mpeg_audio['block_type'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 2); - // $SideInfoOffset += 2; - // $thisfile_mpeg_audio['mixed_block_flag'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 1); - // $SideInfoOffset += 1; - // - // for ($region = 0; $region < 2; $region++) { - // $thisfile_mpeg_audio['table_select'][$granule][$channel][$region] = substr($SideInfoBitstream, $SideInfoOffset, 5); - // $SideInfoOffset += 5; - // } - // $thisfile_mpeg_audio['table_select'][$granule][$channel][2] = 0; - // - // for ($window = 0; $window < 3; $window++) { - // $thisfile_mpeg_audio['subblock_gain'][$granule][$channel][$window] = substr($SideInfoBitstream, $SideInfoOffset, 3); - // $SideInfoOffset += 3; - // } - // - // } else { - // - // for ($region = 0; $region < 3; $region++) { - // $thisfile_mpeg_audio['table_select'][$granule][$channel][$region] = substr($SideInfoBitstream, $SideInfoOffset, 5); - // $SideInfoOffset += 5; - // } - // - // $thisfile_mpeg_audio['region0_count'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 4); - // $SideInfoOffset += 4; - // $thisfile_mpeg_audio['region1_count'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 3); - // $SideInfoOffset += 3; - // $thisfile_mpeg_audio['block_type'][$granule][$channel] = 0; - // } - // - // if ($thisfile_mpeg_audio['version'] == '1') { - // $thisfile_mpeg_audio['preflag'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 1); - // $SideInfoOffset += 1; - // } - // $thisfile_mpeg_audio['scalefac_scale'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 1); - // $SideInfoOffset += 1; - // $thisfile_mpeg_audio['count1table_select'][$granule][$channel] = substr($SideInfoBitstream, $SideInfoOffset, 1); - // $SideInfoOffset += 1; - // } - // } - //} - - return true; - } - - /** - * @param int $offset - * @param int $nextframetestoffset - * @param bool $ScanAsCBR - * - * @return bool - */ - public function RecursiveFrameScanning(&$offset, &$nextframetestoffset, $ScanAsCBR) { - $info = &$this->getid3->info; - $firstframetestarray = array('error' => array(), 'warning'=> array(), 'avdataend' => $info['avdataend'], 'avdataoffset' => $info['avdataoffset']); - $this->decodeMPEGaudioHeader($offset, $firstframetestarray, false); - - for ($i = 0; $i < GETID3_MP3_VALID_CHECK_FRAMES; $i++) { - // check next GETID3_MP3_VALID_CHECK_FRAMES frames for validity, to make sure we haven't run across a false synch - if (($nextframetestoffset + 4) >= $info['avdataend']) { - // end of file - return true; - } - - $nextframetestarray = array('error' => array(), 'warning' => array(), 'avdataend' => $info['avdataend'], 'avdataoffset'=>$info['avdataoffset']); - if ($this->decodeMPEGaudioHeader($nextframetestoffset, $nextframetestarray, false)) { - if ($ScanAsCBR) { - // force CBR mode, used for trying to pick out invalid audio streams with valid(?) VBR headers, or VBR streams with no VBR header - if (!isset($nextframetestarray['mpeg']['audio']['bitrate']) || !isset($firstframetestarray['mpeg']['audio']['bitrate']) || ($nextframetestarray['mpeg']['audio']['bitrate'] != $firstframetestarray['mpeg']['audio']['bitrate'])) { - return false; - } - } - - - // next frame is OK, get ready to check the one after that - if (isset($nextframetestarray['mpeg']['audio']['framelength']) && ($nextframetestarray['mpeg']['audio']['framelength'] > 0)) { - $nextframetestoffset += $nextframetestarray['mpeg']['audio']['framelength']; - } else { - $this->error('Frame at offset ('.$offset.') is has an invalid frame length.'); - return false; - } - - } elseif (!empty($firstframetestarray['mpeg']['audio']['framelength']) && (($nextframetestoffset + $firstframetestarray['mpeg']['audio']['framelength']) > $info['avdataend'])) { - - // it's not the end of the file, but there's not enough data left for another frame, so assume it's garbage/padding and return OK - return true; - - } else { - - // next frame is not valid, note the error and fail, so scanning can contiue for a valid frame sequence - $this->warning('Frame at offset ('.$offset.') is valid, but the next one at ('.$nextframetestoffset.') is not.'); - - return false; - } - } - return true; - } - - /** - * @param int $offset - * @param bool $deepscan - * - * @return int|false - */ - public function FreeFormatFrameLength($offset, $deepscan=false) { - $info = &$this->getid3->info; - - $this->fseek($offset); - $MPEGaudioData = $this->fread(32768); - - $SyncPattern1 = substr($MPEGaudioData, 0, 4); - // may be different pattern due to padding - $SyncPattern2 = $SyncPattern1[0].$SyncPattern1[1].chr(ord($SyncPattern1[2]) | 0x02).$SyncPattern1[3