ntwb /
wordpress
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like getid3_riff often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use getid3_riff, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 30 | class getid3_riff extends getid3_handler { |
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| 31 | |||
| 32 | protected $container = 'riff'; // default |
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| 33 | |||
| 34 | public function Analyze() { |
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| 35 | $info = &$this->getid3->info; |
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| 36 | |||
| 37 | // initialize these values to an empty array, otherwise they default to NULL |
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| 38 | // and you can't append array values to a NULL value |
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| 39 | $info['riff'] = array('raw'=>array()); |
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| 40 | |||
| 41 | // Shortcuts |
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| 42 | $thisfile_riff = &$info['riff']; |
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| 43 | $thisfile_riff_raw = &$thisfile_riff['raw']; |
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| 44 | $thisfile_audio = &$info['audio']; |
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| 45 | $thisfile_video = &$info['video']; |
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| 46 | $thisfile_audio_dataformat = &$thisfile_audio['dataformat']; |
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| 47 | $thisfile_riff_audio = &$thisfile_riff['audio']; |
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| 48 | $thisfile_riff_video = &$thisfile_riff['video']; |
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| 49 | |||
| 50 | $Original['avdataoffset'] = $info['avdataoffset']; |
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| 51 | $Original['avdataend'] = $info['avdataend']; |
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| 52 | |||
| 53 | $this->fseek($info['avdataoffset']); |
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| 54 | $RIFFheader = $this->fread(12); |
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| 55 | $offset = $this->ftell(); |
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| 56 | $RIFFtype = substr($RIFFheader, 0, 4); |
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| 57 | $RIFFsize = substr($RIFFheader, 4, 4); |
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| 58 | $RIFFsubtype = substr($RIFFheader, 8, 4); |
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| 59 | |||
| 60 | switch ($RIFFtype) { |
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| 61 | |||
| 62 | case 'FORM': // AIFF, AIFC |
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| 63 | //$info['fileformat'] = 'aiff'; |
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| 64 | $this->container = 'aiff'; |
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| 65 | $thisfile_riff['header_size'] = $this->EitherEndian2Int($RIFFsize); |
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| 66 | $thisfile_riff[$RIFFsubtype] = $this->ParseRIFF($offset, ($offset + $thisfile_riff['header_size'] - 4)); |
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| 67 | break; |
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| 68 | |||
| 69 | case 'RIFF': // AVI, WAV, etc |
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| 70 | case 'SDSS': // SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com) |
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| 71 | case 'RMP3': // RMP3 is identical to RIFF, just renamed. Used by [unknown program] when creating RIFF-MP3s |
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| 72 | //$info['fileformat'] = 'riff'; |
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| 73 | $this->container = 'riff'; |
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| 74 | $thisfile_riff['header_size'] = $this->EitherEndian2Int($RIFFsize); |
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| 75 | if ($RIFFsubtype == 'RMP3') { |
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| 76 | // RMP3 is identical to WAVE, just renamed. Used by [unknown program] when creating RIFF-MP3s |
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| 77 | $RIFFsubtype = 'WAVE'; |
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| 78 | } |
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| 79 | if ($RIFFsubtype != 'AMV ') { |
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| 80 | // AMV files are RIFF-AVI files with parts of the spec deliberately broken, such as chunk size fields hardcoded to zero (because players known in hardware that these fields are always a certain size |
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| 81 | // Handled separately in ParseRIFFAMV() |
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| 82 | $thisfile_riff[$RIFFsubtype] = $this->ParseRIFF($offset, ($offset + $thisfile_riff['header_size'] - 4)); |
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| 83 | } |
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| 84 | if (($info['avdataend'] - $info['filesize']) == 1) { |
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| 85 | // LiteWave appears to incorrectly *not* pad actual output file |
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| 86 | // to nearest WORD boundary so may appear to be short by one |
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| 87 | // byte, in which case - skip warning |
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| 88 | $info['avdataend'] = $info['filesize']; |
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| 89 | } |
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| 90 | |||
| 91 | $nextRIFFoffset = $Original['avdataoffset'] + 8 + $thisfile_riff['header_size']; // 8 = "RIFF" + 32-bit offset |
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| 92 | while ($nextRIFFoffset < min($info['filesize'], $info['avdataend'])) { |
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| 93 | try { |
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| 94 | $this->fseek($nextRIFFoffset); |
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| 95 | } catch (getid3_exception $e) { |
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| 96 | if ($e->getCode() == 10) { |
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| 97 | //$this->warning('RIFF parser: '.$e->getMessage()); |
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| 98 | $this->error('AVI extends beyond '.round(PHP_INT_MAX / 1073741824).'GB and PHP filesystem functions cannot read that far, playtime may be wrong'); |
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| 99 | $this->warning('[avdataend] value may be incorrect, multiple AVIX chunks may be present'); |
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| 100 | break; |
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| 101 | } else { |
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| 102 | throw $e; |
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| 103 | } |
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| 104 | } |
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| 105 | $nextRIFFheader = $this->fread(12); |
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| 106 | if ($nextRIFFoffset == ($info['avdataend'] - 1)) { |
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| 107 | if (substr($nextRIFFheader, 0, 1) == "\x00") { |
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| 108 | // RIFF padded to WORD boundary, we're actually already at the end |
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| 109 | break; |
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| 110 | } |
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| 111 | } |
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| 112 | $nextRIFFheaderID = substr($nextRIFFheader, 0, 4); |
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| 113 | $nextRIFFsize = $this->EitherEndian2Int(substr($nextRIFFheader, 4, 4)); |
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| 114 | $nextRIFFtype = substr($nextRIFFheader, 8, 4); |
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| 115 | $chunkdata = array(); |
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| 116 | $chunkdata['offset'] = $nextRIFFoffset + 8; |
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| 117 | $chunkdata['size'] = $nextRIFFsize; |
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| 118 | $nextRIFFoffset = $chunkdata['offset'] + $chunkdata['size']; |
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| 119 | |||
| 120 | switch ($nextRIFFheaderID) { |
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| 121 | case 'RIFF': |
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| 122 | $chunkdata['chunks'] = $this->ParseRIFF($chunkdata['offset'] + 4, $nextRIFFoffset); |
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| 123 | if (!isset($thisfile_riff[$nextRIFFtype])) { |
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| 124 | $thisfile_riff[$nextRIFFtype] = array(); |
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| 125 | } |
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| 126 | $thisfile_riff[$nextRIFFtype][] = $chunkdata; |
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| 127 | break; |
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| 128 | |||
| 129 | case 'AMV ': |
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| 130 | unset($info['riff']); |
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| 131 | $info['amv'] = $this->ParseRIFFAMV($chunkdata['offset'] + 4, $nextRIFFoffset); |
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| 132 | break; |
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| 133 | |||
| 134 | case 'JUNK': |
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| 135 | // ignore |
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| 136 | $thisfile_riff[$nextRIFFheaderID][] = $chunkdata; |
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| 137 | break; |
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| 138 | |||
| 139 | case 'IDVX': |
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| 140 | $info['divxtag']['comments'] = self::ParseDIVXTAG($this->fread($chunkdata['size'])); |
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| 141 | break; |
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| 142 | |||
| 143 | default: |
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| 144 | if ($info['filesize'] == ($chunkdata['offset'] - 8 + 128)) { |
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| 145 | $DIVXTAG = $nextRIFFheader.$this->fread(128 - 12); |
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| 146 | if (substr($DIVXTAG, -7) == 'DIVXTAG') { |
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| 147 | // DIVXTAG is supposed to be inside an IDVX chunk in a LIST chunk, but some bad encoders just slap it on the end of a file |
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| 148 | $this->warning('Found wrongly-structured DIVXTAG at offset '.($this->ftell() - 128).', parsing anyway'); |
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| 149 | $info['divxtag']['comments'] = self::ParseDIVXTAG($DIVXTAG); |
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| 150 | break 2; |
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| 151 | } |
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| 152 | } |
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| 153 | $this->warning('Expecting "RIFF|JUNK|IDVX" at '.$nextRIFFoffset.', found "'.$nextRIFFheaderID.'" ('.getid3_lib::PrintHexBytes($nextRIFFheaderID).') - skipping rest of file'); |
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| 154 | break 2; |
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| 155 | |||
| 156 | } |
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| 157 | |||
| 158 | } |
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| 159 | if ($RIFFsubtype == 'WAVE') { |
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| 160 | $thisfile_riff_WAVE = &$thisfile_riff['WAVE']; |
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| 161 | } |
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| 162 | break; |
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| 163 | |||
| 164 | default: |
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| 165 | $this->error('Cannot parse RIFF (this is maybe not a RIFF / WAV / AVI file?) - expecting "FORM|RIFF|SDSS|RMP3" found "'.$RIFFsubtype.'" instead'); |
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| 166 | //unset($info['fileformat']); |
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| 167 | return false; |
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| 168 | } |
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| 169 | |||
| 170 | $streamindex = 0; |
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| 171 | switch ($RIFFsubtype) { |
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| 172 | |||
| 173 | // http://en.wikipedia.org/wiki/Wav |
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| 174 | case 'WAVE': |
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| 175 | $info['fileformat'] = 'wav'; |
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| 176 | |||
| 177 | if (empty($thisfile_audio['bitrate_mode'])) { |
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| 178 | $thisfile_audio['bitrate_mode'] = 'cbr'; |
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| 179 | } |
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| 180 | if (empty($thisfile_audio_dataformat)) { |
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| 181 | $thisfile_audio_dataformat = 'wav'; |
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| 182 | } |
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| 183 | |||
| 184 | if (isset($thisfile_riff_WAVE['data'][0]['offset'])) { |
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| 185 | $info['avdataoffset'] = $thisfile_riff_WAVE['data'][0]['offset'] + 8; |
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| 186 | $info['avdataend'] = $info['avdataoffset'] + $thisfile_riff_WAVE['data'][0]['size']; |
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| 187 | } |
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| 188 | if (isset($thisfile_riff_WAVE['fmt '][0]['data'])) { |
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| 189 | |||
| 190 | $thisfile_riff_audio[$streamindex] = self::parseWAVEFORMATex($thisfile_riff_WAVE['fmt '][0]['data']); |
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| 191 | $thisfile_audio['wformattag'] = $thisfile_riff_audio[$streamindex]['raw']['wFormatTag']; |
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| 192 | if (!isset($thisfile_riff_audio[$streamindex]['bitrate']) || ($thisfile_riff_audio[$streamindex]['bitrate'] == 0)) { |
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| 193 | $info['error'][] = 'Corrupt RIFF file: bitrate_audio == zero'; |
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| 194 | return false; |
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| 195 | } |
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| 196 | $thisfile_riff_raw['fmt '] = $thisfile_riff_audio[$streamindex]['raw']; |
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| 197 | unset($thisfile_riff_audio[$streamindex]['raw']); |
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| 198 | $thisfile_audio['streams'][$streamindex] = $thisfile_riff_audio[$streamindex]; |
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| 199 | |||
| 200 | $thisfile_audio = getid3_lib::array_merge_noclobber($thisfile_audio, $thisfile_riff_audio[$streamindex]); |
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| 201 | if (substr($thisfile_audio['codec'], 0, strlen('unknown: 0x')) == 'unknown: 0x') { |
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| 202 | $info['warning'][] = 'Audio codec = '.$thisfile_audio['codec']; |
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| 203 | } |
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| 204 | $thisfile_audio['bitrate'] = $thisfile_riff_audio[$streamindex]['bitrate']; |
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| 205 | |||
| 206 | if (empty($info['playtime_seconds'])) { // may already be set (e.g. DTS-WAV) |
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| 207 | $info['playtime_seconds'] = (float) ((($info['avdataend'] - $info['avdataoffset']) * 8) / $thisfile_audio['bitrate']); |
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| 208 | } |
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| 209 | |||
| 210 | $thisfile_audio['lossless'] = false; |
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| 211 | if (isset($thisfile_riff_WAVE['data'][0]['offset']) && isset($thisfile_riff_raw['fmt ']['wFormatTag'])) { |
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| 212 | switch ($thisfile_riff_raw['fmt ']['wFormatTag']) { |
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| 213 | |||
| 214 | case 0x0001: // PCM |
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| 215 | $thisfile_audio['lossless'] = true; |
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| 216 | break; |
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| 217 | |||
| 218 | case 0x2000: // AC-3 |
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| 219 | $thisfile_audio_dataformat = 'ac3'; |
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| 220 | break; |
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| 221 | |||
| 222 | default: |
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| 223 | // do nothing |
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| 224 | break; |
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| 225 | |||
| 226 | } |
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| 227 | } |
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| 228 | $thisfile_audio['streams'][$streamindex]['wformattag'] = $thisfile_audio['wformattag']; |
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| 229 | $thisfile_audio['streams'][$streamindex]['bitrate_mode'] = $thisfile_audio['bitrate_mode']; |
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| 230 | $thisfile_audio['streams'][$streamindex]['lossless'] = $thisfile_audio['lossless']; |
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| 231 | $thisfile_audio['streams'][$streamindex]['dataformat'] = $thisfile_audio_dataformat; |
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| 232 | } |
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| 233 | |||
| 234 | if (isset($thisfile_riff_WAVE['rgad'][0]['data'])) { |
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| 235 | |||
| 236 | // shortcuts |
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| 237 | $rgadData = &$thisfile_riff_WAVE['rgad'][0]['data']; |
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| 238 | $thisfile_riff_raw['rgad'] = array('track'=>array(), 'album'=>array()); |
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| 239 | $thisfile_riff_raw_rgad = &$thisfile_riff_raw['rgad']; |
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| 240 | $thisfile_riff_raw_rgad_track = &$thisfile_riff_raw_rgad['track']; |
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| 241 | $thisfile_riff_raw_rgad_album = &$thisfile_riff_raw_rgad['album']; |
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| 242 | |||
| 243 | $thisfile_riff_raw_rgad['fPeakAmplitude'] = getid3_lib::LittleEndian2Float(substr($rgadData, 0, 4)); |
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| 244 | $thisfile_riff_raw_rgad['nRadioRgAdjust'] = $this->EitherEndian2Int(substr($rgadData, 4, 2)); |
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| 245 | $thisfile_riff_raw_rgad['nAudiophileRgAdjust'] = $this->EitherEndian2Int(substr($rgadData, 6, 2)); |
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| 246 | |||
| 247 | $nRadioRgAdjustBitstring = str_pad(getid3_lib::Dec2Bin($thisfile_riff_raw_rgad['nRadioRgAdjust']), 16, '0', STR_PAD_LEFT); |
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| 248 | $nAudiophileRgAdjustBitstring = str_pad(getid3_lib::Dec2Bin($thisfile_riff_raw_rgad['nAudiophileRgAdjust']), 16, '0', STR_PAD_LEFT); |
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| 249 | $thisfile_riff_raw_rgad_track['name'] = getid3_lib::Bin2Dec(substr($nRadioRgAdjustBitstring, 0, 3)); |
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| 250 | $thisfile_riff_raw_rgad_track['originator'] = getid3_lib::Bin2Dec(substr($nRadioRgAdjustBitstring, 3, 3)); |
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| 251 | $thisfile_riff_raw_rgad_track['signbit'] = getid3_lib::Bin2Dec(substr($nRadioRgAdjustBitstring, 6, 1)); |
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| 252 | $thisfile_riff_raw_rgad_track['adjustment'] = getid3_lib::Bin2Dec(substr($nRadioRgAdjustBitstring, 7, 9)); |
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| 253 | $thisfile_riff_raw_rgad_album['name'] = getid3_lib::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 0, 3)); |
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| 254 | $thisfile_riff_raw_rgad_album['originator'] = getid3_lib::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 3, 3)); |
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| 255 | $thisfile_riff_raw_rgad_album['signbit'] = getid3_lib::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 6, 1)); |
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| 256 | $thisfile_riff_raw_rgad_album['adjustment'] = getid3_lib::Bin2Dec(substr($nAudiophileRgAdjustBitstring, 7, 9)); |
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| 257 | |||
| 258 | $thisfile_riff['rgad']['peakamplitude'] = $thisfile_riff_raw_rgad['fPeakAmplitude']; |
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| 259 | View Code Duplication | if (($thisfile_riff_raw_rgad_track['name'] != 0) && ($thisfile_riff_raw_rgad_track['originator'] != 0)) { |
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| 260 | $thisfile_riff['rgad']['track']['name'] = getid3_lib::RGADnameLookup($thisfile_riff_raw_rgad_track['name']); |
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| 261 | $thisfile_riff['rgad']['track']['originator'] = getid3_lib::RGADoriginatorLookup($thisfile_riff_raw_rgad_track['originator']); |
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| 262 | $thisfile_riff['rgad']['track']['adjustment'] = getid3_lib::RGADadjustmentLookup($thisfile_riff_raw_rgad_track['adjustment'], $thisfile_riff_raw_rgad_track['signbit']); |
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| 263 | } |
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| 264 | View Code Duplication | if (($thisfile_riff_raw_rgad_album['name'] != 0) && ($thisfile_riff_raw_rgad_album['originator'] != 0)) { |
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| 265 | $thisfile_riff['rgad']['album']['name'] = getid3_lib::RGADnameLookup($thisfile_riff_raw_rgad_album['name']); |
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| 266 | $thisfile_riff['rgad']['album']['originator'] = getid3_lib::RGADoriginatorLookup($thisfile_riff_raw_rgad_album['originator']); |
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| 267 | $thisfile_riff['rgad']['album']['adjustment'] = getid3_lib::RGADadjustmentLookup($thisfile_riff_raw_rgad_album['adjustment'], $thisfile_riff_raw_rgad_album['signbit']); |
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| 268 | } |
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| 269 | } |
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| 270 | |||
| 271 | if (isset($thisfile_riff_WAVE['fact'][0]['data'])) { |
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| 272 | $thisfile_riff_raw['fact']['NumberOfSamples'] = $this->EitherEndian2Int(substr($thisfile_riff_WAVE['fact'][0]['data'], 0, 4)); |
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| 273 | |||
| 274 | // This should be a good way of calculating exact playtime, |
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| 275 | // but some sample files have had incorrect number of samples, |
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| 276 | // so cannot use this method |
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| 277 | |||
| 278 | // if (!empty($thisfile_riff_raw['fmt ']['nSamplesPerSec'])) { |
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| 279 | // $info['playtime_seconds'] = (float) $thisfile_riff_raw['fact']['NumberOfSamples'] / $thisfile_riff_raw['fmt ']['nSamplesPerSec']; |
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| 280 | // } |
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| 281 | } |
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| 282 | if (!empty($thisfile_riff_raw['fmt ']['nAvgBytesPerSec'])) { |
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| 283 | $thisfile_audio['bitrate'] = getid3_lib::CastAsInt($thisfile_riff_raw['fmt ']['nAvgBytesPerSec'] * 8); |
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| 284 | } |
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| 285 | |||
| 286 | if (isset($thisfile_riff_WAVE['bext'][0]['data'])) { |
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| 287 | // shortcut |
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| 288 | $thisfile_riff_WAVE_bext_0 = &$thisfile_riff_WAVE['bext'][0]; |
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| 289 | |||
| 290 | $thisfile_riff_WAVE_bext_0['title'] = trim(substr($thisfile_riff_WAVE_bext_0['data'], 0, 256)); |
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| 291 | $thisfile_riff_WAVE_bext_0['author'] = trim(substr($thisfile_riff_WAVE_bext_0['data'], 256, 32)); |
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| 292 | $thisfile_riff_WAVE_bext_0['reference'] = trim(substr($thisfile_riff_WAVE_bext_0['data'], 288, 32)); |
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| 293 | $thisfile_riff_WAVE_bext_0['origin_date'] = substr($thisfile_riff_WAVE_bext_0['data'], 320, 10); |
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| 294 | $thisfile_riff_WAVE_bext_0['origin_time'] = substr($thisfile_riff_WAVE_bext_0['data'], 330, 8); |
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| 295 | $thisfile_riff_WAVE_bext_0['time_reference'] = getid3_lib::LittleEndian2Int(substr($thisfile_riff_WAVE_bext_0['data'], 338, 8)); |
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| 296 | $thisfile_riff_WAVE_bext_0['bwf_version'] = getid3_lib::LittleEndian2Int(substr($thisfile_riff_WAVE_bext_0['data'], 346, 1)); |
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| 297 | $thisfile_riff_WAVE_bext_0['reserved'] = substr($thisfile_riff_WAVE_bext_0['data'], 347, 254); |
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| 298 | $thisfile_riff_WAVE_bext_0['coding_history'] = explode("\r\n", trim(substr($thisfile_riff_WAVE_bext_0['data'], 601))); |
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| 299 | if (preg_match('#^([0-9]{4}).([0-9]{2}).([0-9]{2})$#', $thisfile_riff_WAVE_bext_0['origin_date'], $matches_bext_date)) { |
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| 300 | if (preg_match('#^([0-9]{2}).([0-9]{2}).([0-9]{2})$#', $thisfile_riff_WAVE_bext_0['origin_time'], $matches_bext_time)) { |
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| 301 | list($dummy, $bext_timestamp['year'], $bext_timestamp['month'], $bext_timestamp['day']) = $matches_bext_date; |
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| 302 | list($dummy, $bext_timestamp['hour'], $bext_timestamp['minute'], $bext_timestamp['second']) = $matches_bext_time; |
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| 303 | $thisfile_riff_WAVE_bext_0['origin_date_unix'] = gmmktime($bext_timestamp['hour'], $bext_timestamp['minute'], $bext_timestamp['second'], $bext_timestamp['month'], $bext_timestamp['day'], $bext_timestamp['year']); |
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| 304 | } else { |
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| 305 | $info['warning'][] = 'RIFF.WAVE.BEXT.origin_time is invalid'; |
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| 306 | } |
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| 307 | } else { |
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| 308 | $info['warning'][] = 'RIFF.WAVE.BEXT.origin_date is invalid'; |
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| 309 | } |
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| 310 | $thisfile_riff['comments']['author'][] = $thisfile_riff_WAVE_bext_0['author']; |
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| 311 | $thisfile_riff['comments']['title'][] = $thisfile_riff_WAVE_bext_0['title']; |
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| 312 | } |
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| 313 | |||
| 314 | if (isset($thisfile_riff_WAVE['MEXT'][0]['data'])) { |
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| 315 | // shortcut |
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| 316 | $thisfile_riff_WAVE_MEXT_0 = &$thisfile_riff_WAVE['MEXT'][0]; |
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| 317 | |||
| 318 | $thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] = getid3_lib::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 0, 2)); |
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| 319 | $thisfile_riff_WAVE_MEXT_0['flags']['homogenous'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x0001); |
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| 320 | if ($thisfile_riff_WAVE_MEXT_0['flags']['homogenous']) { |
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| 321 | $thisfile_riff_WAVE_MEXT_0['flags']['padding'] = ($thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x0002) ? false : true; |
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| 322 | $thisfile_riff_WAVE_MEXT_0['flags']['22_or_44'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x0004); |
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| 323 | $thisfile_riff_WAVE_MEXT_0['flags']['free_format'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['sound_information'] & 0x0008); |
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| 324 | |||
| 325 | $thisfile_riff_WAVE_MEXT_0['nominal_frame_size'] = getid3_lib::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 2, 2)); |
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| 326 | } |
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| 327 | $thisfile_riff_WAVE_MEXT_0['anciliary_data_length'] = getid3_lib::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 6, 2)); |
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| 328 | $thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] = getid3_lib::LittleEndian2Int(substr($thisfile_riff_WAVE_MEXT_0['data'], 8, 2)); |
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| 329 | $thisfile_riff_WAVE_MEXT_0['flags']['anciliary_data_left'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] & 0x0001); |
||
| 330 | $thisfile_riff_WAVE_MEXT_0['flags']['anciliary_data_free'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] & 0x0002); |
||
| 331 | $thisfile_riff_WAVE_MEXT_0['flags']['anciliary_data_right'] = (bool) ($thisfile_riff_WAVE_MEXT_0['raw']['anciliary_data_def'] & 0x0004); |
||
| 332 | } |
||
| 333 | |||
| 334 | if (isset($thisfile_riff_WAVE['cart'][0]['data'])) { |
||
| 335 | // shortcut |
||
| 336 | $thisfile_riff_WAVE_cart_0 = &$thisfile_riff_WAVE['cart'][0]; |
||
| 337 | |||
| 338 | $thisfile_riff_WAVE_cart_0['version'] = substr($thisfile_riff_WAVE_cart_0['data'], 0, 4); |
||
| 339 | $thisfile_riff_WAVE_cart_0['title'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 4, 64)); |
||
| 340 | $thisfile_riff_WAVE_cart_0['artist'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 68, 64)); |
||
| 341 | $thisfile_riff_WAVE_cart_0['cut_id'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 132, 64)); |
||
| 342 | $thisfile_riff_WAVE_cart_0['client_id'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 196, 64)); |
||
| 343 | $thisfile_riff_WAVE_cart_0['category'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 260, 64)); |
||
| 344 | $thisfile_riff_WAVE_cart_0['classification'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 324, 64)); |
||
| 345 | $thisfile_riff_WAVE_cart_0['out_cue'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 388, 64)); |
||
| 346 | $thisfile_riff_WAVE_cart_0['start_date'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 452, 10)); |
||
| 347 | $thisfile_riff_WAVE_cart_0['start_time'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 462, 8)); |
||
| 348 | $thisfile_riff_WAVE_cart_0['end_date'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 470, 10)); |
||
| 349 | $thisfile_riff_WAVE_cart_0['end_time'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 480, 8)); |
||
| 350 | $thisfile_riff_WAVE_cart_0['producer_app_id'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 488, 64)); |
||
| 351 | $thisfile_riff_WAVE_cart_0['producer_app_version'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 552, 64)); |
||
| 352 | $thisfile_riff_WAVE_cart_0['user_defined_text'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 616, 64)); |
||
| 353 | $thisfile_riff_WAVE_cart_0['zero_db_reference'] = getid3_lib::LittleEndian2Int(substr($thisfile_riff_WAVE_cart_0['data'], 680, 4), true); |
||
| 354 | for ($i = 0; $i < 8; $i++) { |
||
| 355 | $thisfile_riff_WAVE_cart_0['post_time'][$i]['usage_fourcc'] = substr($thisfile_riff_WAVE_cart_0['data'], 684 + ($i * 8), 4); |
||
| 356 | $thisfile_riff_WAVE_cart_0['post_time'][$i]['timer_value'] = getid3_lib::LittleEndian2Int(substr($thisfile_riff_WAVE_cart_0['data'], 684 + ($i * 8) + 4, 4)); |
||
| 357 | } |
||
| 358 | $thisfile_riff_WAVE_cart_0['url'] = trim(substr($thisfile_riff_WAVE_cart_0['data'], 748, 1024)); |
||
| 359 | $thisfile_riff_WAVE_cart_0['tag_text'] = explode("\r\n", trim(substr($thisfile_riff_WAVE_cart_0['data'], 1772))); |
||
| 360 | |||
| 361 | $thisfile_riff['comments']['artist'][] = $thisfile_riff_WAVE_cart_0['artist']; |
||
| 362 | $thisfile_riff['comments']['title'][] = $thisfile_riff_WAVE_cart_0['title']; |
||
| 363 | } |
||
| 364 | |||
| 365 | if (isset($thisfile_riff_WAVE['SNDM'][0]['data'])) { |
||
| 366 | // SoundMiner metadata |
||
| 367 | |||
| 368 | // shortcuts |
||
| 369 | $thisfile_riff_WAVE_SNDM_0 = &$thisfile_riff_WAVE['SNDM'][0]; |
||
| 370 | $thisfile_riff_WAVE_SNDM_0_data = &$thisfile_riff_WAVE_SNDM_0['data']; |
||
| 371 | $SNDM_startoffset = 0; |
||
| 372 | $SNDM_endoffset = $thisfile_riff_WAVE_SNDM_0['size']; |
||
| 373 | |||
| 374 | while ($SNDM_startoffset < $SNDM_endoffset) { |
||
| 375 | $SNDM_thisTagOffset = 0; |
||
| 376 | $SNDM_thisTagSize = getid3_lib::BigEndian2Int(substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 4)); |
||
| 377 | $SNDM_thisTagOffset += 4; |
||
| 378 | $SNDM_thisTagKey = substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 4); |
||
| 379 | $SNDM_thisTagOffset += 4; |
||
| 380 | $SNDM_thisTagDataSize = getid3_lib::BigEndian2Int(substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 2)); |
||
| 381 | $SNDM_thisTagOffset += 2; |
||
| 382 | $SNDM_thisTagDataFlags = getid3_lib::BigEndian2Int(substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, 2)); |
||
| 383 | $SNDM_thisTagOffset += 2; |
||
| 384 | $SNDM_thisTagDataText = substr($thisfile_riff_WAVE_SNDM_0_data, $SNDM_startoffset + $SNDM_thisTagOffset, $SNDM_thisTagDataSize); |
||
| 385 | $SNDM_thisTagOffset += $SNDM_thisTagDataSize; |
||
| 386 | |||
| 387 | if ($SNDM_thisTagSize != (4 + 4 + 2 + 2 + $SNDM_thisTagDataSize)) { |
||
| 388 | $info['warning'][] = 'RIFF.WAVE.SNDM.data contains tag not expected length (expected: '.$SNDM_thisTagSize.', found: '.(4 + 4 + 2 + 2 + $SNDM_thisTagDataSize).') at offset '.$SNDM_startoffset.' (file offset '.($thisfile_riff_WAVE_SNDM_0['offset'] + $SNDM_startoffset).')'; |
||
| 389 | break; |
||
| 390 | View Code Duplication | } elseif ($SNDM_thisTagSize <= 0) { |
|
| 391 | $info['warning'][] = 'RIFF.WAVE.SNDM.data contains zero-size tag at offset '.$SNDM_startoffset.' (file offset '.($thisfile_riff_WAVE_SNDM_0['offset'] + $SNDM_startoffset).')'; |
||
| 392 | break; |
||
| 393 | } |
||
| 394 | $SNDM_startoffset += $SNDM_thisTagSize; |
||
| 395 | |||
| 396 | $thisfile_riff_WAVE_SNDM_0['parsed_raw'][$SNDM_thisTagKey] = $SNDM_thisTagDataText; |
||
| 397 | if ($parsedkey = self::waveSNDMtagLookup($SNDM_thisTagKey)) { |
||
| 398 | $thisfile_riff_WAVE_SNDM_0['parsed'][$parsedkey] = $SNDM_thisTagDataText; |
||
| 399 | View Code Duplication | } else { |
|
| 400 | $info['warning'][] = 'RIFF.WAVE.SNDM contains unknown tag "'.$SNDM_thisTagKey.'" at offset '.$SNDM_startoffset.' (file offset '.($thisfile_riff_WAVE_SNDM_0['offset'] + $SNDM_startoffset).')'; |
||
| 401 | } |
||
| 402 | } |
||
| 403 | |||
| 404 | $tagmapping = array( |
||
| 405 | 'tracktitle'=>'title', |
||
| 406 | 'category' =>'genre', |
||
| 407 | 'cdtitle' =>'album', |
||
| 408 | 'tracktitle'=>'title', |
||
| 409 | ); |
||
| 410 | foreach ($tagmapping as $fromkey => $tokey) { |
||
| 411 | if (isset($thisfile_riff_WAVE_SNDM_0['parsed'][$fromkey])) { |
||
| 412 | $thisfile_riff['comments'][$tokey][] = $thisfile_riff_WAVE_SNDM_0['parsed'][$fromkey]; |
||
| 413 | } |
||
| 414 | } |
||
| 415 | } |
||
| 416 | |||
| 417 | if (isset($thisfile_riff_WAVE['iXML'][0]['data'])) { |
||
| 418 | // requires functions simplexml_load_string and get_object_vars |
||
| 419 | if ($parsedXML = getid3_lib::XML2array($thisfile_riff_WAVE['iXML'][0]['data'])) { |
||
| 420 | $thisfile_riff_WAVE['iXML'][0]['parsed'] = $parsedXML; |
||
| 421 | View Code Duplication | if (isset($parsedXML['SPEED']['MASTER_SPEED'])) { |
|
| 422 | @list($numerator, $denominator) = explode('/', $parsedXML['SPEED']['MASTER_SPEED']); |
||
| 423 | $thisfile_riff_WAVE['iXML'][0]['master_speed'] = $numerator / ($denominator ? $denominator : 1000); |
||
| 424 | } |
||
| 425 | View Code Duplication | if (isset($parsedXML['SPEED']['TIMECODE_RATE'])) { |
|
| 426 | @list($numerator, $denominator) = explode('/', $parsedXML['SPEED']['TIMECODE_RATE']); |
||
| 427 | $thisfile_riff_WAVE['iXML'][0]['timecode_rate'] = $numerator / ($denominator ? $denominator : 1000); |
||
| 428 | } |
||
| 429 | if (isset($parsedXML['SPEED']['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_LO']) && !empty($parsedXML['SPEED']['TIMESTAMP_SAMPLE_RATE']) && !empty($thisfile_riff_WAVE['iXML'][0]['timecode_rate'])) { |
||
| 430 | $samples_since_midnight = floatval(ltrim($parsedXML['SPEED']['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_HI'].$parsedXML['SPEED']['TIMESTAMP_SAMPLES_SINCE_MIDNIGHT_LO'], '0')); |
||
| 431 | $thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] = $samples_since_midnight / $parsedXML['SPEED']['TIMESTAMP_SAMPLE_RATE']; |
||
| 432 | $h = floor( $thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] / 3600); |
||
| 433 | $m = floor(($thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] - ($h * 3600)) / 60); |
||
| 434 | $s = floor( $thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] - ($h * 3600) - ($m * 60)); |
||
| 435 | $f = ($thisfile_riff_WAVE['iXML'][0]['timecode_seconds'] - ($h * 3600) - ($m * 60) - $s) * $thisfile_riff_WAVE['iXML'][0]['timecode_rate']; |
||
| 436 | $thisfile_riff_WAVE['iXML'][0]['timecode_string'] = sprintf('%02d:%02d:%02d:%05.2f', $h, $m, $s, $f); |
||
| 437 | $thisfile_riff_WAVE['iXML'][0]['timecode_string_round'] = sprintf('%02d:%02d:%02d:%02d', $h, $m, $s, round($f)); |
||
| 438 | } |
||
| 439 | unset($parsedXML); |
||
| 440 | } |
||
| 441 | } |
||
| 442 | |||
| 443 | |||
| 444 | |||
| 445 | if (!isset($thisfile_audio['bitrate']) && isset($thisfile_riff_audio[$streamindex]['bitrate'])) { |
||
| 446 | $thisfile_audio['bitrate'] = $thisfile_riff_audio[$streamindex]['bitrate']; |
||
| 447 | $info['playtime_seconds'] = (float) ((($info['avdataend'] - $info['avdataoffset']) * 8) / $thisfile_audio['bitrate']); |
||
| 448 | } |
||
| 449 | |||
| 450 | if (!empty($info['wavpack'])) { |
||
| 451 | $thisfile_audio_dataformat = 'wavpack'; |
||
| 452 | $thisfile_audio['bitrate_mode'] = 'vbr'; |
||
| 453 | $thisfile_audio['encoder'] = 'WavPack v'.$info['wavpack']['version']; |
||
| 454 | |||
| 455 | // Reset to the way it was - RIFF parsing will have messed this up |
||
| 456 | $info['avdataend'] = $Original['avdataend']; |
||
| 457 | $thisfile_audio['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds']; |
||
| 458 | |||
| 459 | $this->fseek($info['avdataoffset'] - 44); |
||
| 460 | $RIFFdata = $this->fread(44); |
||
| 461 | $OrignalRIFFheaderSize = getid3_lib::LittleEndian2Int(substr($RIFFdata, 4, 4)) + 8; |
||
| 462 | $OrignalRIFFdataSize = getid3_lib::LittleEndian2Int(substr($RIFFdata, 40, 4)) + 44; |
||
| 463 | |||
| 464 | if ($OrignalRIFFheaderSize > $OrignalRIFFdataSize) { |
||
| 465 | $info['avdataend'] -= ($OrignalRIFFheaderSize - $OrignalRIFFdataSize); |
||
| 466 | $this->fseek($info['avdataend']); |
||
| 467 | $RIFFdata .= $this->fread($OrignalRIFFheaderSize - $OrignalRIFFdataSize); |
||
| 468 | } |
||
| 469 | |||
| 470 | // move the data chunk after all other chunks (if any) |
||
| 471 | // so that the RIFF parser doesn't see EOF when trying |
||
| 472 | // to skip over the data chunk |
||
| 473 | $RIFFdata = substr($RIFFdata, 0, 36).substr($RIFFdata, 44).substr($RIFFdata, 36, 8); |
||
| 474 | $getid3_riff = new getid3_riff($this->getid3); |
||
| 475 | $getid3_riff->ParseRIFFdata($RIFFdata); |
||
| 476 | unset($getid3_riff); |
||
| 477 | } |
||
| 478 | |||
| 479 | if (isset($thisfile_riff_raw['fmt ']['wFormatTag'])) { |
||
| 480 | switch ($thisfile_riff_raw['fmt ']['wFormatTag']) { |
||
| 481 | case 0x0001: // PCM |
||
| 482 | View Code Duplication | if (!empty($info['ac3'])) { |
|
| 483 | // Dolby Digital WAV files masquerade as PCM-WAV, but they're not |
||
| 484 | $thisfile_audio['wformattag'] = 0x2000; |
||
| 485 | $thisfile_audio['codec'] = self::wFormatTagLookup($thisfile_audio['wformattag']); |
||
| 486 | $thisfile_audio['lossless'] = false; |
||
| 487 | $thisfile_audio['bitrate'] = $info['ac3']['bitrate']; |
||
| 488 | $thisfile_audio['sample_rate'] = $info['ac3']['sample_rate']; |
||
| 489 | } |
||
| 490 | View Code Duplication | if (!empty($info['dts'])) { |
|
| 491 | // Dolby DTS files masquerade as PCM-WAV, but they're not |
||
| 492 | $thisfile_audio['wformattag'] = 0x2001; |
||
| 493 | $thisfile_audio['codec'] = self::wFormatTagLookup($thisfile_audio['wformattag']); |
||
| 494 | $thisfile_audio['lossless'] = false; |
||
| 495 | $thisfile_audio['bitrate'] = $info['dts']['bitrate']; |
||
| 496 | $thisfile_audio['sample_rate'] = $info['dts']['sample_rate']; |
||
| 497 | } |
||
| 498 | break; |
||
| 499 | case 0x08AE: // ClearJump LiteWave |
||
| 500 | $thisfile_audio['bitrate_mode'] = 'vbr'; |
||
| 501 | $thisfile_audio_dataformat = 'litewave'; |
||
| 502 | |||
| 503 | //typedef struct tagSLwFormat { |
||
| 504 | // WORD m_wCompFormat; // low byte defines compression method, high byte is compression flags |
||
| 505 | // DWORD m_dwScale; // scale factor for lossy compression |
||
| 506 | // DWORD m_dwBlockSize; // number of samples in encoded blocks |
||
| 507 | // WORD m_wQuality; // alias for the scale factor |
||
| 508 | // WORD m_wMarkDistance; // distance between marks in bytes |
||
| 509 | // WORD m_wReserved; |
||
| 510 | // |
||
| 511 | // //following paramters are ignored if CF_FILESRC is not set |
||
| 512 | // DWORD m_dwOrgSize; // original file size in bytes |
||
| 513 | // WORD m_bFactExists; // indicates if 'fact' chunk exists in the original file |
||
| 514 | // DWORD m_dwRiffChunkSize; // riff chunk size in the original file |
||
| 515 | // |
||
| 516 | // PCMWAVEFORMAT m_OrgWf; // original wave format |
||
| 517 | // }SLwFormat, *PSLwFormat; |
||
| 518 | |||
| 519 | // shortcut |
||
| 520 | $thisfile_riff['litewave']['raw'] = array(); |
||
| 521 | $riff_litewave = &$thisfile_riff['litewave']; |
||
| 522 | $riff_litewave_raw = &$riff_litewave['raw']; |
||
| 523 | |||
| 524 | $flags = array( |
||
| 525 | 'compression_method' => 1, |
||
| 526 | 'compression_flags' => 1, |
||
| 527 | 'm_dwScale' => 4, |
||
| 528 | 'm_dwBlockSize' => 4, |
||
| 529 | 'm_wQuality' => 2, |
||
| 530 | 'm_wMarkDistance' => 2, |
||
| 531 | 'm_wReserved' => 2, |
||
| 532 | 'm_dwOrgSize' => 4, |
||
| 533 | 'm_bFactExists' => 2, |
||
| 534 | 'm_dwRiffChunkSize' => 4, |
||
| 535 | ); |
||
| 536 | $litewave_offset = 18; |
||
| 537 | foreach ($flags as $flag => $length) { |
||
| 538 | $riff_litewave_raw[$flag] = getid3_lib::LittleEndian2Int(substr($thisfile_riff_WAVE['fmt '][0]['data'], $litewave_offset, $length)); |
||
| 539 | $litewave_offset += $length; |
||
| 540 | } |
||
| 541 | |||
| 542 | //$riff_litewave['quality_factor'] = intval(round((2000 - $riff_litewave_raw['m_dwScale']) / 20)); |
||
| 543 | $riff_litewave['quality_factor'] = $riff_litewave_raw['m_wQuality']; |
||
| 544 | |||
| 545 | $riff_litewave['flags']['raw_source'] = ($riff_litewave_raw['compression_flags'] & 0x01) ? false : true; |
||
| 546 | $riff_litewave['flags']['vbr_blocksize'] = ($riff_litewave_raw['compression_flags'] & 0x02) ? false : true; |
||
| 547 | $riff_litewave['flags']['seekpoints'] = (bool) ($riff_litewave_raw['compression_flags'] & 0x04); |
||
| 548 | |||
| 549 | $thisfile_audio['lossless'] = (($riff_litewave_raw['m_wQuality'] == 100) ? true : false); |
||
| 550 | $thisfile_audio['encoder_options'] = '-q'.$riff_litewave['quality_factor']; |
||
| 551 | break; |
||
| 552 | |||
| 553 | default: |
||
| 554 | break; |
||
| 555 | } |
||
| 556 | } |
||
| 557 | if ($info['avdataend'] > $info['filesize']) { |
||
| 558 | switch (!empty($thisfile_audio_dataformat) ? $thisfile_audio_dataformat : '') { |
||
| 559 | case 'wavpack': // WavPack |
||
| 560 | case 'lpac': // LPAC |
||
| 561 | case 'ofr': // OptimFROG |
||
| 562 | case 'ofs': // OptimFROG DualStream |
||
| 563 | // lossless compressed audio formats that keep original RIFF headers - skip warning |
||
| 564 | break; |
||
| 565 | |||
| 566 | case 'litewave': |
||
| 567 | if (($info['avdataend'] - $info['filesize']) == 1) { |
||
| 568 | // LiteWave appears to incorrectly *not* pad actual output file |
||
| 569 | // to nearest WORD boundary so may appear to be short by one |
||
| 570 | // byte, in which case - skip warning |
||
| 571 | View Code Duplication | } else { |
|
| 572 | // Short by more than one byte, throw warning |
||
| 573 | $info['warning'][] = 'Probably truncated file - expecting '.$thisfile_riff[$RIFFsubtype]['data'][0]['size'].' bytes of data, only found '.($info['filesize'] - $info['avdataoffset']).' (short by '.($thisfile_riff[$RIFFsubtype]['data'][0]['size'] - ($info['filesize'] - $info['avdataoffset'])).' bytes)'; |
||
| 574 | $info['avdataend'] = $info['filesize']; |
||
| 575 | } |
||
| 576 | break; |
||
| 577 | |||
| 578 | default: |
||
| 579 | if ((($info['avdataend'] - $info['filesize']) == 1) && (($thisfile_riff[$RIFFsubtype]['data'][0]['size'] % 2) == 0) && ((($info['filesize'] - $info['avdataoffset']) % 2) == 1)) { |
||
| 580 | // output file appears to be incorrectly *not* padded to nearest WORD boundary |
||
| 581 | // Output less severe warning |
||
| 582 | $info['warning'][] = 'File should probably be padded to nearest WORD boundary, but it is not (expecting '.$thisfile_riff[$RIFFsubtype]['data'][0]['size'].' bytes of data, only found '.($info['filesize'] - $info['avdataoffset']).' therefore short by '.($thisfile_riff[$RIFFsubtype]['data'][0]['size'] - ($info['filesize'] - $info['avdataoffset'])).' bytes)'; |
||
| 583 | $info['avdataend'] = $info['filesize']; |
||
| 584 | View Code Duplication | } else { |
|
| 585 | // Short by more than one byte, throw warning |
||
| 586 | $info['warning'][] = 'Probably truncated file - expecting '.$thisfile_riff[$RIFFsubtype]['data'][0]['size'].' bytes of data, only found '.($info['filesize'] - $info['avdataoffset']).' (short by '.($thisfile_riff[$RIFFsubtype]['data'][0]['size'] - ($info['filesize'] - $info['avdataoffset'])).' bytes)'; |
||
| 587 | $info['avdataend'] = $info['filesize']; |
||
| 588 | } |
||
| 589 | break; |
||
| 590 | } |
||
| 591 | } |
||
| 592 | View Code Duplication | if (!empty($info['mpeg']['audio']['LAME']['audio_bytes'])) { |
|
| 593 | if ((($info['avdataend'] - $info['avdataoffset']) - $info['mpeg']['audio']['LAME']['audio_bytes']) == 1) { |
||
| 594 | $info['avdataend']--; |
||
| 595 | $info['warning'][] = 'Extra null byte at end of MP3 data assumed to be RIFF padding and therefore ignored'; |
||
| 596 | } |
||
| 597 | } |
||
| 598 | if (isset($thisfile_audio_dataformat) && ($thisfile_audio_dataformat == 'ac3')) { |
||
| 599 | unset($thisfile_audio['bits_per_sample']); |
||
| 600 | if (!empty($info['ac3']['bitrate']) && ($info['ac3']['bitrate'] != $thisfile_audio['bitrate'])) { |
||
| 601 | $thisfile_audio['bitrate'] = $info['ac3']['bitrate']; |
||
| 602 | } |
||
| 603 | } |
||
| 604 | break; |
||
| 605 | |||
| 606 | // http://en.wikipedia.org/wiki/Audio_Video_Interleave |
||
| 607 | case 'AVI ': |
||
| 608 | $info['fileformat'] = 'avi'; |
||
| 609 | $info['mime_type'] = 'video/avi'; |
||
| 610 | |||
| 611 | $thisfile_video['bitrate_mode'] = 'vbr'; // maybe not, but probably |
||
| 612 | $thisfile_video['dataformat'] = 'avi'; |
||
| 613 | |||
| 614 | if (isset($thisfile_riff[$RIFFsubtype]['movi']['offset'])) { |
||
| 615 | $info['avdataoffset'] = $thisfile_riff[$RIFFsubtype]['movi']['offset'] + 8; |
||
| 616 | if (isset($thisfile_riff['AVIX'])) { |
||
| 617 | $info['avdataend'] = $thisfile_riff['AVIX'][(count($thisfile_riff['AVIX']) - 1)]['chunks']['movi']['offset'] + $thisfile_riff['AVIX'][(count($thisfile_riff['AVIX']) - 1)]['chunks']['movi']['size']; |
||
| 618 | } else { |
||
| 619 | $info['avdataend'] = $thisfile_riff['AVI ']['movi']['offset'] + $thisfile_riff['AVI ']['movi']['size']; |
||
| 620 | } |
||
| 621 | if ($info['avdataend'] > $info['filesize']) { |
||
| 622 | $info['warning'][] = 'Probably truncated file - expecting '.($info['avdataend'] - $info['avdataoffset']).' bytes of data, only found '.($info['filesize'] - $info['avdataoffset']).' (short by '.($info['avdataend'] - $info['filesize']).' bytes)'; |
||
| 623 | $info['avdataend'] = $info['filesize']; |
||
| 624 | } |
||
| 625 | } |
||
| 626 | |||
| 627 | if (isset($thisfile_riff['AVI ']['hdrl']['strl']['indx'])) { |
||
| 628 | //$bIndexType = array( |
||
| 629 | // 0x00 => 'AVI_INDEX_OF_INDEXES', |
||
| 630 | // 0x01 => 'AVI_INDEX_OF_CHUNKS', |
||
| 631 | // 0x80 => 'AVI_INDEX_IS_DATA', |
||
| 632 | //); |
||
| 633 | //$bIndexSubtype = array( |
||
| 634 | // 0x01 => array( |
||
| 635 | // 0x01 => 'AVI_INDEX_2FIELD', |
||
| 636 | // ), |
||
| 637 | //); |
||
| 638 | foreach ($thisfile_riff['AVI ']['hdrl']['strl']['indx'] as $streamnumber => $steamdataarray) { |
||
| 639 | $ahsisd = &$thisfile_riff['AVI ']['hdrl']['strl']['indx'][$streamnumber]['data']; |
||
| 640 | |||
| 641 | $thisfile_riff_raw['indx'][$streamnumber]['wLongsPerEntry'] = $this->EitherEndian2Int(substr($ahsisd, 0, 2)); |
||
| 642 | $thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType'] = $this->EitherEndian2Int(substr($ahsisd, 2, 1)); |
||
| 643 | $thisfile_riff_raw['indx'][$streamnumber]['bIndexType'] = $this->EitherEndian2Int(substr($ahsisd, 3, 1)); |
||
| 644 | $thisfile_riff_raw['indx'][$streamnumber]['nEntriesInUse'] = $this->EitherEndian2Int(substr($ahsisd, 4, 4)); |
||
| 645 | $thisfile_riff_raw['indx'][$streamnumber]['dwChunkId'] = substr($ahsisd, 8, 4); |
||
| 646 | $thisfile_riff_raw['indx'][$streamnumber]['dwReserved'] = $this->EitherEndian2Int(substr($ahsisd, 12, 4)); |
||
| 647 | |||
| 648 | //$thisfile_riff_raw['indx'][$streamnumber]['bIndexType_name'] = $bIndexType[$thisfile_riff_raw['indx'][$streamnumber]['bIndexType']]; |
||
| 649 | //$thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType_name'] = $bIndexSubtype[$thisfile_riff_raw['indx'][$streamnumber]['bIndexType']][$thisfile_riff_raw['indx'][$streamnumber]['bIndexSubType']]; |
||
| 650 | |||
| 651 | unset($ahsisd); |
||
| 652 | } |
||
| 653 | } |
||
| 654 | if (isset($thisfile_riff['AVI ']['hdrl']['avih'][$streamindex]['data'])) { |
||
| 655 | $avihData = $thisfile_riff['AVI ']['hdrl']['avih'][$streamindex]['data']; |
||
| 656 | |||
| 657 | // shortcut |
||
| 658 | $thisfile_riff_raw['avih'] = array(); |
||
| 659 | $thisfile_riff_raw_avih = &$thisfile_riff_raw['avih']; |
||
| 660 | |||
| 661 | $thisfile_riff_raw_avih['dwMicroSecPerFrame'] = $this->EitherEndian2Int(substr($avihData, 0, 4)); // frame display rate (or 0L) |
||
| 662 | if ($thisfile_riff_raw_avih['dwMicroSecPerFrame'] == 0) { |
||
| 663 | $info['error'][] = 'Corrupt RIFF file: avih.dwMicroSecPerFrame == zero'; |
||
| 664 | return false; |
||
| 665 | } |
||
| 666 | |||
| 667 | $flags = array( |
||
| 668 | 'dwMaxBytesPerSec', // max. transfer rate |
||
| 669 | 'dwPaddingGranularity', // pad to multiples of this size; normally 2K. |
||
| 670 | 'dwFlags', // the ever-present flags |
||
| 671 | 'dwTotalFrames', // # frames in file |
||
| 672 | 'dwInitialFrames', // |
||
| 673 | 'dwStreams', // |
||
| 674 | 'dwSuggestedBufferSize', // |
||
| 675 | 'dwWidth', // |
||
| 676 | 'dwHeight', // |
||
| 677 | 'dwScale', // |
||
| 678 | 'dwRate', // |
||
| 679 | 'dwStart', // |
||
| 680 | 'dwLength', // |
||
| 681 | ); |
||
| 682 | $avih_offset = 4; |
||
| 683 | foreach ($flags as $flag) { |
||
| 684 | $thisfile_riff_raw_avih[$flag] = $this->EitherEndian2Int(substr($avihData, $avih_offset, 4)); |
||
| 685 | $avih_offset += 4; |
||
| 686 | } |
||
| 687 | |||
| 688 | $flags = array( |
||
| 689 | 'hasindex' => 0x00000010, |
||
| 690 | 'mustuseindex' => 0x00000020, |
||
| 691 | 'interleaved' => 0x00000100, |
||
| 692 | 'trustcktype' => 0x00000800, |
||
| 693 | 'capturedfile' => 0x00010000, |
||
| 694 | 'copyrighted' => 0x00020010, |
||
| 695 | ); |
||
| 696 | foreach ($flags as $flag => $value) { |
||
| 697 | $thisfile_riff_raw_avih['flags'][$flag] = (bool) ($thisfile_riff_raw_avih['dwFlags'] & $value); |
||
| 698 | } |
||
| 699 | |||
| 700 | // shortcut |
||
| 701 | $thisfile_riff_video[$streamindex] = array(); |
||
| 702 | $thisfile_riff_video_current = &$thisfile_riff_video[$streamindex]; |
||
| 703 | |||
| 704 | if ($thisfile_riff_raw_avih['dwWidth'] > 0) { |
||
| 705 | $thisfile_riff_video_current['frame_width'] = $thisfile_riff_raw_avih['dwWidth']; |
||
| 706 | $thisfile_video['resolution_x'] = $thisfile_riff_video_current['frame_width']; |
||
| 707 | } |
||
| 708 | if ($thisfile_riff_raw_avih['dwHeight'] > 0) { |
||
| 709 | $thisfile_riff_video_current['frame_height'] = $thisfile_riff_raw_avih['dwHeight']; |
||
| 710 | $thisfile_video['resolution_y'] = $thisfile_riff_video_current['frame_height']; |
||
| 711 | } |
||
| 712 | if ($thisfile_riff_raw_avih['dwTotalFrames'] > 0) { |
||
| 713 | $thisfile_riff_video_current['total_frames'] = $thisfile_riff_raw_avih['dwTotalFrames']; |
||
| 714 | $thisfile_video['total_frames'] = $thisfile_riff_video_current['total_frames']; |
||
| 715 | } |
||
| 716 | |||
| 717 | $thisfile_riff_video_current['frame_rate'] = round(1000000 / $thisfile_riff_raw_avih['dwMicroSecPerFrame'], 3); |
||
| 718 | $thisfile_video['frame_rate'] = $thisfile_riff_video_current['frame_rate']; |
||
| 719 | } |
||
| 720 | if (isset($thisfile_riff['AVI ']['hdrl']['strl']['strh'][0]['data'])) { |
||
| 721 | if (is_array($thisfile_riff['AVI ']['hdrl']['strl']['strh'])) { |
||
| 722 | for ($i = 0; $i < count($thisfile_riff['AVI ']['hdrl']['strl']['strh']); $i++) { |
||
| 723 | if (isset($thisfile_riff['AVI ']['hdrl']['strl']['strh'][$i]['data'])) { |
||
| 724 | $strhData = $thisfile_riff['AVI ']['hdrl']['strl']['strh'][$i]['data']; |
||
| 725 | $strhfccType = substr($strhData, 0, 4); |
||
| 726 | |||
| 727 | if (isset($thisfile_riff['AVI ']['hdrl']['strl']['strf'][$i]['data'])) { |
||
| 728 | $strfData = $thisfile_riff['AVI ']['hdrl']['strl']['strf'][$i]['data']; |
||
| 729 | |||
| 730 | // shortcut |
||
| 731 | $thisfile_riff_raw_strf_strhfccType_streamindex = &$thisfile_riff_raw['strf'][$strhfccType][$streamindex]; |
||
| 732 | |||
| 733 | switch ($strhfccType) { |
||
| 734 | case 'auds': |
||
| 735 | $thisfile_audio['bitrate_mode'] = 'cbr'; |
||
| 736 | $thisfile_audio_dataformat = 'wav'; |
||
| 737 | if (isset($thisfile_riff_audio) && is_array($thisfile_riff_audio)) { |
||
| 738 | $streamindex = count($thisfile_riff_audio); |
||
| 739 | } |
||
| 740 | |||
| 741 | $thisfile_riff_audio[$streamindex] = self::parseWAVEFORMATex($strfData); |
||
| 742 | $thisfile_audio['wformattag'] = $thisfile_riff_audio[$streamindex]['raw']['wFormatTag']; |
||
| 743 | |||
| 744 | // shortcut |
||
| 745 | $thisfile_audio['streams'][$streamindex] = $thisfile_riff_audio[$streamindex]; |
||
| 746 | $thisfile_audio_streams_currentstream = &$thisfile_audio['streams'][$streamindex]; |
||
| 747 | |||
| 748 | if ($thisfile_audio_streams_currentstream['bits_per_sample'] == 0) { |
||
| 749 | unset($thisfile_audio_streams_currentstream['bits_per_sample']); |
||
| 750 | } |
||
| 751 | $thisfile_audio_streams_currentstream['wformattag'] = $thisfile_audio_streams_currentstream['raw']['wFormatTag']; |
||
| 752 | unset($thisfile_audio_streams_currentstream['raw']); |
||
| 753 | |||
| 754 | // shortcut |
||
| 755 | $thisfile_riff_raw['strf'][$strhfccType][$streamindex] = $thisfile_riff_audio[$streamindex]['raw']; |
||
| 756 | |||
| 757 | unset($thisfile_riff_audio[$streamindex]['raw']); |
||
| 758 | $thisfile_audio = getid3_lib::array_merge_noclobber($thisfile_audio, $thisfile_riff_audio[$streamindex]); |
||
| 759 | |||
| 760 | $thisfile_audio['lossless'] = false; |
||
| 761 | switch ($thisfile_riff_raw_strf_strhfccType_streamindex['wFormatTag']) { |
||
| 762 | case 0x0001: // PCM |
||
| 763 | $thisfile_audio_dataformat = 'wav'; |
||
| 764 | $thisfile_audio['lossless'] = true; |
||
| 765 | break; |
||
| 766 | |||
| 767 | case 0x0050: // MPEG Layer 2 or Layer 1 |
||
| 768 | $thisfile_audio_dataformat = 'mp2'; // Assume Layer-2 |
||
| 769 | break; |
||
| 770 | |||
| 771 | case 0x0055: // MPEG Layer 3 |
||
| 772 | $thisfile_audio_dataformat = 'mp3'; |
||
| 773 | break; |
||
| 774 | |||
| 775 | case 0x00FF: // AAC |
||
| 776 | $thisfile_audio_dataformat = 'aac'; |
||
| 777 | break; |
||
| 778 | |||
| 779 | case 0x0161: // Windows Media v7 / v8 / v9 |
||
| 780 | case 0x0162: // Windows Media Professional v9 |
||
| 781 | case 0x0163: // Windows Media Lossess v9 |
||
| 782 | $thisfile_audio_dataformat = 'wma'; |
||
| 783 | break; |
||
| 784 | |||
| 785 | case 0x2000: // AC-3 |
||
| 786 | $thisfile_audio_dataformat = 'ac3'; |
||
| 787 | break; |
||
| 788 | |||
| 789 | case 0x2001: // DTS |
||
| 790 | $thisfile_audio_dataformat = 'dts'; |
||
| 791 | break; |
||
| 792 | |||
| 793 | default: |
||
| 794 | $thisfile_audio_dataformat = 'wav'; |
||
| 795 | break; |
||
| 796 | } |
||
| 797 | $thisfile_audio_streams_currentstream['dataformat'] = $thisfile_audio_dataformat; |
||
| 798 | $thisfile_audio_streams_currentstream['lossless'] = $thisfile_audio['lossless']; |
||
| 799 | $thisfile_audio_streams_currentstream['bitrate_mode'] = $thisfile_audio['bitrate_mode']; |
||
| 800 | break; |
||
| 801 | |||
| 802 | |||
| 803 | case 'iavs': |
||
| 804 | case 'vids': |
||
| 805 | // shortcut |
||
| 806 | $thisfile_riff_raw['strh'][$i] = array(); |
||
| 807 | $thisfile_riff_raw_strh_current = &$thisfile_riff_raw['strh'][$i]; |
||
| 808 | |||
| 809 | $thisfile_riff_raw_strh_current['fccType'] = substr($strhData, 0, 4); // same as $strhfccType; |
||
| 810 | $thisfile_riff_raw_strh_current['fccHandler'] = substr($strhData, 4, 4); |
||
| 811 | $thisfile_riff_raw_strh_current['dwFlags'] = $this->EitherEndian2Int(substr($strhData, 8, 4)); // Contains AVITF_* flags |
||
| 812 | $thisfile_riff_raw_strh_current['wPriority'] = $this->EitherEndian2Int(substr($strhData, 12, 2)); |
||
| 813 | $thisfile_riff_raw_strh_current['wLanguage'] = $this->EitherEndian2Int(substr($strhData, 14, 2)); |
||
| 814 | $thisfile_riff_raw_strh_current['dwInitialFrames'] = $this->EitherEndian2Int(substr($strhData, 16, 4)); |
||
| 815 | $thisfile_riff_raw_strh_current['dwScale'] = $this->EitherEndian2Int(substr($strhData, 20, 4)); |
||
| 816 | $thisfile_riff_raw_strh_current['dwRate'] = $this->EitherEndian2Int(substr($strhData, 24, 4)); |
||
| 817 | $thisfile_riff_raw_strh_current['dwStart'] = $this->EitherEndian2Int(substr($strhData, 28, 4)); |
||
| 818 | $thisfile_riff_raw_strh_current['dwLength'] = $this->EitherEndian2Int(substr($strhData, 32, 4)); |
||
| 819 | $thisfile_riff_raw_strh_current['dwSuggestedBufferSize'] = $this->EitherEndian2Int(substr($strhData, 36, 4)); |
||
| 820 | $thisfile_riff_raw_strh_current['dwQuality'] = $this->EitherEndian2Int(substr($strhData, 40, 4)); |
||
| 821 | $thisfile_riff_raw_strh_current['dwSampleSize'] = $this->EitherEndian2Int(substr($strhData, 44, 4)); |
||
| 822 | $thisfile_riff_raw_strh_current['rcFrame'] = $this->EitherEndian2Int(substr($strhData, 48, 4)); |
||
| 823 | |||
| 824 | $thisfile_riff_video_current['codec'] = self::fourccLookup($thisfile_riff_raw_strh_current['fccHandler']); |
||
| 825 | $thisfile_video['fourcc'] = $thisfile_riff_raw_strh_current['fccHandler']; |
||
| 826 | if (!$thisfile_riff_video_current['codec'] && isset($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']) && self::fourccLookup($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc'])) { |
||
| 827 | $thisfile_riff_video_current['codec'] = self::fourccLookup($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']); |
||
| 828 | $thisfile_video['fourcc'] = $thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']; |
||
| 829 | } |
||
| 830 | $thisfile_video['codec'] = $thisfile_riff_video_current['codec']; |
||
| 831 | $thisfile_video['pixel_aspect_ratio'] = (float) 1; |
||
| 832 | switch ($thisfile_riff_raw_strh_current['fccHandler']) { |
||
| 833 | case 'HFYU': // Huffman Lossless Codec |
||
| 834 | case 'IRAW': // Intel YUV Uncompressed |
||
| 835 | case 'YUY2': // Uncompressed YUV 4:2:2 |
||
| 836 | $thisfile_video['lossless'] = true; |
||
| 837 | break; |
||
| 838 | |||
| 839 | default: |
||
| 840 | $thisfile_video['lossless'] = false; |
||
| 841 | break; |
||
| 842 | } |
||
| 843 | |||
| 844 | switch ($strhfccType) { |
||
| 845 | case 'vids': |
||
| 846 | $thisfile_riff_raw_strf_strhfccType_streamindex = self::ParseBITMAPINFOHEADER(substr($strfData, 0, 40), ($this->container == 'riff')); |
||
| 847 | $thisfile_video['bits_per_sample'] = $thisfile_riff_raw_strf_strhfccType_streamindex['biBitCount']; |
||
| 848 | |||
| 849 | if ($thisfile_riff_video_current['codec'] == 'DV') { |
||
| 850 | $thisfile_riff_video_current['dv_type'] = 2; |
||
| 851 | } |
||
| 852 | break; |
||
| 853 | |||
| 854 | case 'iavs': |
||
| 855 | $thisfile_riff_video_current['dv_type'] = 1; |
||
| 856 | break; |
||
| 857 | } |
||
| 858 | break; |
||
| 859 | |||
| 860 | default: |
||
| 861 | $info['warning'][] = 'Unhandled fccType for stream ('.$i.'): "'.$strhfccType.'"'; |
||
| 862 | break; |
||
| 863 | |||
| 864 | } |
||
| 865 | } |
||
| 866 | } |
||
| 867 | |||
| 868 | if (isset($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc'])) { |
||
| 869 | |||
| 870 | $thisfile_video['fourcc'] = $thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']; |
||
| 871 | if (self::fourccLookup($thisfile_video['fourcc'])) { |
||
| 872 | $thisfile_riff_video_current['codec'] = self::fourccLookup($thisfile_video['fourcc']); |
||
| 873 | $thisfile_video['codec'] = $thisfile_riff_video_current['codec']; |
||
| 874 | } |
||
| 875 | |||
| 876 | switch ($thisfile_riff_raw_strf_strhfccType_streamindex['fourcc']) { |
||
| 877 | case 'HFYU': // Huffman Lossless Codec |
||
| 878 | case 'IRAW': // Intel YUV Uncompressed |
||
| 879 | case 'YUY2': // Uncompressed YUV 4:2:2 |
||
| 880 | $thisfile_video['lossless'] = true; |
||
| 881 | //$thisfile_video['bits_per_sample'] = 24; |
||
| 882 | break; |
||
| 883 | |||
| 884 | default: |
||
| 885 | $thisfile_video['lossless'] = false; |
||
| 886 | //$thisfile_video['bits_per_sample'] = 24; |
||
| 887 | break; |
||
| 888 | } |
||
| 889 | |||
| 890 | } |
||
| 891 | } |
||
| 892 | } |
||
| 893 | } |
||
| 894 | break; |
||
| 895 | |||
| 896 | |||
| 897 | case 'AMV ': |
||
| 898 | $info['fileformat'] = 'amv'; |
||
| 899 | $info['mime_type'] = 'video/amv'; |
||
| 900 | |||
| 901 | $thisfile_video['bitrate_mode'] = 'vbr'; // it's MJPEG, presumably contant-quality encoding, thereby VBR |
||
| 902 | $thisfile_video['dataformat'] = 'mjpeg'; |
||
| 903 | $thisfile_video['codec'] = 'mjpeg'; |
||
| 904 | $thisfile_video['lossless'] = false; |
||
| 905 | $thisfile_video['bits_per_sample'] = 24; |
||
| 906 | |||
| 907 | $thisfile_audio['dataformat'] = 'adpcm'; |
||
| 908 | $thisfile_audio['lossless'] = false; |
||
| 909 | break; |
||
| 910 | |||
| 911 | |||
| 912 | // http://en.wikipedia.org/wiki/CD-DA |
||
| 913 | case 'CDDA': |
||
| 914 | $info['fileformat'] = 'cda'; |
||
| 915 | unset($info['mime_type']); |
||
| 916 | |||
| 917 | $thisfile_audio_dataformat = 'cda'; |
||
| 918 | |||
| 919 | $info['avdataoffset'] = 44; |
||
| 920 | |||
| 921 | if (isset($thisfile_riff['CDDA']['fmt '][0]['data'])) { |
||
| 922 | // shortcut |
||
| 923 | $thisfile_riff_CDDA_fmt_0 = &$thisfile_riff['CDDA']['fmt '][0]; |
||
| 924 | |||
| 925 | $thisfile_riff_CDDA_fmt_0['unknown1'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 0, 2)); |
||
| 926 | $thisfile_riff_CDDA_fmt_0['track_num'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 2, 2)); |
||
| 927 | $thisfile_riff_CDDA_fmt_0['disc_id'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 4, 4)); |
||
| 928 | $thisfile_riff_CDDA_fmt_0['start_offset_frame'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 8, 4)); |
||
| 929 | $thisfile_riff_CDDA_fmt_0['playtime_frames'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 12, 4)); |
||
| 930 | $thisfile_riff_CDDA_fmt_0['unknown6'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 16, 4)); |
||
| 931 | $thisfile_riff_CDDA_fmt_0['unknown7'] = $this->EitherEndian2Int(substr($thisfile_riff_CDDA_fmt_0['data'], 20, 4)); |
||
| 932 | |||
| 933 | $thisfile_riff_CDDA_fmt_0['start_offset_seconds'] = (float) $thisfile_riff_CDDA_fmt_0['start_offset_frame'] / 75; |
||
| 934 | $thisfile_riff_CDDA_fmt_0['playtime_seconds'] = (float) $thisfile_riff_CDDA_fmt_0['playtime_frames'] / 75; |
||
| 935 | $info['comments']['track'] = $thisfile_riff_CDDA_fmt_0['track_num']; |
||
| 936 | $info['playtime_seconds'] = $thisfile_riff_CDDA_fmt_0['playtime_seconds']; |
||
| 937 | |||
| 938 | // hardcoded data for CD-audio |
||
| 939 | $thisfile_audio['lossless'] = true; |
||
| 940 | $thisfile_audio['sample_rate'] = 44100; |
||
| 941 | $thisfile_audio['channels'] = 2; |
||
| 942 | $thisfile_audio['bits_per_sample'] = 16; |
||
| 943 | $thisfile_audio['bitrate'] = $thisfile_audio['sample_rate'] * $thisfile_audio['channels'] * $thisfile_audio['bits_per_sample']; |
||
| 944 | $thisfile_audio['bitrate_mode'] = 'cbr'; |
||
| 945 | } |
||
| 946 | break; |
||
| 947 | |||
| 948 | // http://en.wikipedia.org/wiki/AIFF |
||
| 949 | case 'AIFF': |
||
| 950 | case 'AIFC': |
||
| 951 | $info['fileformat'] = 'aiff'; |
||
| 952 | $info['mime_type'] = 'audio/x-aiff'; |
||
| 953 | |||
| 954 | $thisfile_audio['bitrate_mode'] = 'cbr'; |
||
| 955 | $thisfile_audio_dataformat = 'aiff'; |
||
| 956 | $thisfile_audio['lossless'] = true; |
||
| 957 | |||
| 958 | if (isset($thisfile_riff[$RIFFsubtype]['SSND'][0]['offset'])) { |
||
| 959 | $info['avdataoffset'] = $thisfile_riff[$RIFFsubtype]['SSND'][0]['offset'] + 8; |
||
| 960 | $info['avdataend'] = $info['avdataoffset'] + $thisfile_riff[$RIFFsubtype]['SSND'][0]['size']; |
||
| 961 | if ($info['avdataend'] > $info['filesize']) { |
||
| 962 | if (($info['avdataend'] == ($info['filesize'] + 1)) && (($info['filesize'] % 2) == 1)) { |
||
| 963 | // structures rounded to 2-byte boundary, but dumb encoders |
||
| 964 | // forget to pad end of file to make this actually work |
||
| 965 | } else { |
||
| 966 | $info['warning'][] = 'Probable truncated AIFF file: expecting '.$thisfile_riff[$RIFFsubtype]['SSND'][0]['size'].' bytes of audio data, only '.($info['filesize'] - $info['avdataoffset']).' bytes found'; |
||
| 967 | } |
||
| 968 | $info['avdataend'] = $info['filesize']; |
||
| 969 | } |
||
| 970 | } |
||
| 971 | |||
| 972 | if (isset($thisfile_riff[$RIFFsubtype]['COMM'][0]['data'])) { |
||
| 973 | |||
| 974 | // shortcut |
||
| 975 | $thisfile_riff_RIFFsubtype_COMM_0_data = &$thisfile_riff[$RIFFsubtype]['COMM'][0]['data']; |
||
| 976 | |||
| 977 | $thisfile_riff_audio['channels'] = getid3_lib::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 0, 2), true); |
||
| 978 | $thisfile_riff_audio['total_samples'] = getid3_lib::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 2, 4), false); |
||
| 979 | $thisfile_riff_audio['bits_per_sample'] = getid3_lib::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 6, 2), true); |
||
| 980 | $thisfile_riff_audio['sample_rate'] = (int) getid3_lib::BigEndian2Float(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 8, 10)); |
||
| 981 | |||
| 982 | if ($thisfile_riff[$RIFFsubtype]['COMM'][0]['size'] > 18) { |
||
| 983 | $thisfile_riff_audio['codec_fourcc'] = substr($thisfile_riff_RIFFsubtype_COMM_0_data, 18, 4); |
||
| 984 | $CodecNameSize = getid3_lib::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_COMM_0_data, 22, 1), false); |
||
| 985 | $thisfile_riff_audio['codec_name'] = substr($thisfile_riff_RIFFsubtype_COMM_0_data, 23, $CodecNameSize); |
||
| 986 | switch ($thisfile_riff_audio['codec_name']) { |
||
| 987 | case 'NONE': |
||
| 988 | $thisfile_audio['codec'] = 'Pulse Code Modulation (PCM)'; |
||
| 989 | $thisfile_audio['lossless'] = true; |
||
| 990 | break; |
||
| 991 | |||
| 992 | case '': |
||
| 993 | switch ($thisfile_riff_audio['codec_fourcc']) { |
||
| 994 | // http://developer.apple.com/qa/snd/snd07.html |
||
| 995 | case 'sowt': |
||
| 996 | $thisfile_riff_audio['codec_name'] = 'Two\'s Compliment Little-Endian PCM'; |
||
| 997 | $thisfile_audio['lossless'] = true; |
||
| 998 | break; |
||
| 999 | |||
| 1000 | case 'twos': |
||
| 1001 | $thisfile_riff_audio['codec_name'] = 'Two\'s Compliment Big-Endian PCM'; |
||
| 1002 | $thisfile_audio['lossless'] = true; |
||
| 1003 | break; |
||
| 1004 | |||
| 1005 | default: |
||
| 1006 | break; |
||
| 1007 | } |
||
| 1008 | break; |
||
| 1009 | |||
| 1010 | default: |
||
| 1011 | $thisfile_audio['codec'] = $thisfile_riff_audio['codec_name']; |
||
| 1012 | $thisfile_audio['lossless'] = false; |
||
| 1013 | break; |
||
| 1014 | } |
||
| 1015 | } |
||
| 1016 | |||
| 1017 | $thisfile_audio['channels'] = $thisfile_riff_audio['channels']; |
||
| 1018 | if ($thisfile_riff_audio['bits_per_sample'] > 0) { |
||
| 1019 | $thisfile_audio['bits_per_sample'] = $thisfile_riff_audio['bits_per_sample']; |
||
| 1020 | } |
||
| 1021 | $thisfile_audio['sample_rate'] = $thisfile_riff_audio['sample_rate']; |
||
| 1022 | if ($thisfile_audio['sample_rate'] == 0) { |
||
| 1023 | $info['error'][] = 'Corrupted AIFF file: sample_rate == zero'; |
||
| 1024 | return false; |
||
| 1025 | } |
||
| 1026 | $info['playtime_seconds'] = $thisfile_riff_audio['total_samples'] / $thisfile_audio['sample_rate']; |
||
| 1027 | } |
||
| 1028 | |||
| 1029 | if (isset($thisfile_riff[$RIFFsubtype]['COMT'])) { |
||
| 1030 | $offset = 0; |
||
| 1031 | $CommentCount = getid3_lib::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 2), false); |
||
| 1032 | $offset += 2; |
||
| 1033 | for ($i = 0; $i < $CommentCount; $i++) { |
||
| 1034 | $info['comments_raw'][$i]['timestamp'] = getid3_lib::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 4), false); |
||
| 1035 | $offset += 4; |
||
| 1036 | $info['comments_raw'][$i]['marker_id'] = getid3_lib::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 2), true); |
||
| 1037 | $offset += 2; |
||
| 1038 | $CommentLength = getid3_lib::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, 2), false); |
||
| 1039 | $offset += 2; |
||
| 1040 | $info['comments_raw'][$i]['comment'] = substr($thisfile_riff[$RIFFsubtype]['COMT'][0]['data'], $offset, $CommentLength); |
||
| 1041 | $offset += $CommentLength; |
||
| 1042 | |||
| 1043 | $info['comments_raw'][$i]['timestamp_unix'] = getid3_lib::DateMac2Unix($info['comments_raw'][$i]['timestamp']); |
||
| 1044 | $thisfile_riff['comments']['comment'][] = $info['comments_raw'][$i]['comment']; |
||
| 1045 | } |
||
| 1046 | } |
||
| 1047 | |||
| 1048 | $CommentsChunkNames = array('NAME'=>'title', 'author'=>'artist', '(c) '=>'copyright', 'ANNO'=>'comment'); |
||
| 1049 | View Code Duplication | foreach ($CommentsChunkNames as $key => $value) { |
|
| 1050 | if (isset($thisfile_riff[$RIFFsubtype][$key][0]['data'])) { |
||
| 1051 | $thisfile_riff['comments'][$value][] = $thisfile_riff[$RIFFsubtype][$key][0]['data']; |
||
| 1052 | } |
||
| 1053 | } |
||
| 1054 | /* |
||
| 1055 | if (isset($thisfile_riff[$RIFFsubtype]['ID3 '])) { |
||
| 1056 | getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); |
||
| 1057 | $getid3_temp = new getID3(); |
||
| 1058 | $getid3_temp->openfile($this->getid3->filename); |
||
| 1059 | $getid3_id3v2 = new getid3_id3v2($getid3_temp); |
||
| 1060 | $getid3_id3v2->StartingOffset = $thisfile_riff[$RIFFsubtype]['ID3 '][0]['offset'] + 8; |
||
| 1061 | if ($thisfile_riff[$RIFFsubtype]['ID3 '][0]['valid'] = $getid3_id3v2->Analyze()) { |
||
| 1062 | $info['id3v2'] = $getid3_temp->info['id3v2']; |
||
| 1063 | } |
||
| 1064 | unset($getid3_temp, $getid3_id3v2); |
||
| 1065 | } |
||
| 1066 | */ |
||
| 1067 | break; |
||
| 1068 | |||
| 1069 | // http://en.wikipedia.org/wiki/8SVX |
||
| 1070 | case '8SVX': |
||
| 1071 | $info['fileformat'] = '8svx'; |
||
| 1072 | $info['mime_type'] = 'audio/8svx'; |
||
| 1073 | |||
| 1074 | $thisfile_audio['bitrate_mode'] = 'cbr'; |
||
| 1075 | $thisfile_audio_dataformat = '8svx'; |
||
| 1076 | $thisfile_audio['bits_per_sample'] = 8; |
||
| 1077 | $thisfile_audio['channels'] = 1; // overridden below, if need be |
||
| 1078 | |||
| 1079 | if (isset($thisfile_riff[$RIFFsubtype]['BODY'][0]['offset'])) { |
||
| 1080 | $info['avdataoffset'] = $thisfile_riff[$RIFFsubtype]['BODY'][0]['offset'] + 8; |
||
| 1081 | $info['avdataend'] = $info['avdataoffset'] + $thisfile_riff[$RIFFsubtype]['BODY'][0]['size']; |
||
| 1082 | if ($info['avdataend'] > $info['filesize']) { |
||
| 1083 | $info['warning'][] = 'Probable truncated AIFF file: expecting '.$thisfile_riff[$RIFFsubtype]['BODY'][0]['size'].' bytes of audio data, only '.($info['filesize'] - $info['avdataoffset']).' bytes found'; |
||
| 1084 | } |
||
| 1085 | } |
||
| 1086 | |||
| 1087 | if (isset($thisfile_riff[$RIFFsubtype]['VHDR'][0]['offset'])) { |
||
| 1088 | // shortcut |
||
| 1089 | $thisfile_riff_RIFFsubtype_VHDR_0 = &$thisfile_riff[$RIFFsubtype]['VHDR'][0]; |
||
| 1090 | |||
| 1091 | $thisfile_riff_RIFFsubtype_VHDR_0['oneShotHiSamples'] = getid3_lib::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 0, 4)); |
||
| 1092 | $thisfile_riff_RIFFsubtype_VHDR_0['repeatHiSamples'] = getid3_lib::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 4, 4)); |
||
| 1093 | $thisfile_riff_RIFFsubtype_VHDR_0['samplesPerHiCycle'] = getid3_lib::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 8, 4)); |
||
| 1094 | $thisfile_riff_RIFFsubtype_VHDR_0['samplesPerSec'] = getid3_lib::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 12, 2)); |
||
| 1095 | $thisfile_riff_RIFFsubtype_VHDR_0['ctOctave'] = getid3_lib::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 14, 1)); |
||
| 1096 | $thisfile_riff_RIFFsubtype_VHDR_0['sCompression'] = getid3_lib::BigEndian2Int(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 15, 1)); |
||
| 1097 | $thisfile_riff_RIFFsubtype_VHDR_0['Volume'] = getid3_lib::FixedPoint16_16(substr($thisfile_riff_RIFFsubtype_VHDR_0['data'], 16, 4)); |
||
| 1098 | |||
| 1099 | $thisfile_audio['sample_rate'] = $thisfile_riff_RIFFsubtype_VHDR_0['samplesPerSec']; |
||
| 1100 | |||
| 1101 | switch ($thisfile_riff_RIFFsubtype_VHDR_0['sCompression']) { |
||
| 1102 | View Code Duplication | case 0: |
|
| 1103 | $thisfile_audio['codec'] = 'Pulse Code Modulation (PCM)'; |
||
| 1104 | $thisfile_audio['lossless'] = true; |
||
| 1105 | $ActualBitsPerSample = 8; |
||
| 1106 | break; |
||
| 1107 | |||
| 1108 | View Code Duplication | case 1: |
|
| 1109 | $thisfile_audio['codec'] = 'Fibonacci-delta encoding'; |
||
| 1110 | $thisfile_audio['lossless'] = false; |
||
| 1111 | $ActualBitsPerSample = 4; |
||
| 1112 | break; |
||
| 1113 | |||
| 1114 | default: |
||
| 1115 | $info['warning'][] = 'Unexpected sCompression value in 8SVX.VHDR chunk - expecting 0 or 1, found "'.sCompression.'"'; |
||
| 1116 | break; |
||
| 1117 | } |
||
| 1118 | } |
||
| 1119 | |||
| 1120 | if (isset($thisfile_riff[$RIFFsubtype]['CHAN'][0]['data'])) { |
||
| 1121 | $ChannelsIndex = getid3_lib::BigEndian2Int(substr($thisfile_riff[$RIFFsubtype]['CHAN'][0]['data'], 0, 4)); |
||
| 1122 | switch ($ChannelsIndex) { |
||
| 1123 | case 6: // Stereo |
||
| 1124 | $thisfile_audio['channels'] = 2; |
||
| 1125 | break; |
||
| 1126 | |||
| 1127 | case 2: // Left channel only |
||
| 1128 | case 4: // Right channel only |
||
| 1129 | $thisfile_audio['channels'] = 1; |
||
| 1130 | break; |
||
| 1131 | |||
| 1132 | default: |
||
| 1133 | $info['warning'][] = 'Unexpected value in 8SVX.CHAN chunk - expecting 2 or 4 or 6, found "'.$ChannelsIndex.'"'; |
||
| 1134 | break; |
||
| 1135 | } |
||
| 1136 | |||
| 1137 | } |
||
| 1138 | |||
| 1139 | $CommentsChunkNames = array('NAME'=>'title', 'author'=>'artist', '(c) '=>'copyright', 'ANNO'=>'comment'); |
||
| 1140 | View Code Duplication | foreach ($CommentsChunkNames as $key => $value) { |
|
| 1141 | if (isset($thisfile_riff[$RIFFsubtype][$key][0]['data'])) { |
||
| 1142 | $thisfile_riff['comments'][$value][] = $thisfile_riff[$RIFFsubtype][$key][0]['data']; |
||
| 1143 | } |
||
| 1144 | } |
||
| 1145 | |||
| 1146 | $thisfile_audio['bitrate'] = $thisfile_audio['sample_rate'] * $ActualBitsPerSample * $thisfile_audio['channels']; |
||
| 1147 | if (!empty($thisfile_audio['bitrate'])) { |
||
| 1148 | $info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset']) / ($thisfile_audio['bitrate'] / 8); |
||
| 1149 | } |
||
| 1150 | break; |
||
| 1151 | |||
| 1152 | case 'CDXA': |
||
| 1153 | $info['fileformat'] = 'vcd'; // Asume Video CD |
||
| 1154 | $info['mime_type'] = 'video/mpeg'; |
||
| 1155 | |||
| 1156 | View Code Duplication | if (!empty($thisfile_riff['CDXA']['data'][0]['size'])) { |
|
| 1157 | getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.mpeg.php', __FILE__, true); |
||
| 1158 | |||
| 1159 | $getid3_temp = new getID3(); |
||
| 1160 | $getid3_temp->openfile($this->getid3->filename); |
||
| 1161 | $getid3_mpeg = new getid3_mpeg($getid3_temp); |
||
| 1162 | $getid3_mpeg->Analyze(); |
||
| 1163 | if (empty($getid3_temp->info['error'])) { |
||
| 1164 | $info['audio'] = $getid3_temp->info['audio']; |
||
| 1165 | $info['video'] = $getid3_temp->info['video']; |
||
| 1166 | $info['mpeg'] = $getid3_temp->info['mpeg']; |
||
| 1167 | $info['warning'] = $getid3_temp->info['warning']; |
||
| 1168 | } |
||
| 1169 | unset($getid3_temp, $getid3_mpeg); |
||
| 1170 | } |
||
| 1171 | break; |
||
| 1172 | |||
| 1173 | |||
| 1174 | default: |
||
| 1175 | $info['error'][] = 'Unknown RIFF type: expecting one of (WAVE|RMP3|AVI |CDDA|AIFF|AIFC|8SVX|CDXA), found "'.$RIFFsubtype.'" instead'; |
||
| 1176 | //unset($info['fileformat']); |
||
| 1177 | } |
||
| 1178 | |||
| 1179 | switch ($RIFFsubtype) { |
||
| 1180 | case 'WAVE': |
||
| 1181 | case 'AIFF': |
||
| 1182 | case 'AIFC': |
||
| 1183 | $ID3v2_key_good = 'id3 '; |
||
| 1184 | $ID3v2_keys_bad = array('ID3 ', 'tag '); |
||
| 1185 | foreach ($ID3v2_keys_bad as $ID3v2_key_bad) { |
||
| 1186 | if (isset($thisfile_riff[$RIFFsubtype][$ID3v2_key_bad]) && !array_key_exists($ID3v2_key_good, $thisfile_riff[$RIFFsubtype])) { |
||
| 1187 | $thisfile_riff[$RIFFsubtype][$ID3v2_key_good] = $thisfile_riff[$RIFFsubtype][$ID3v2_key_bad]; |
||
| 1188 | $info['warning'][] = 'mapping "'.$ID3v2_key_bad.'" chunk to "'.$ID3v2_key_good.'"'; |
||
| 1189 | } |
||
| 1190 | } |
||
| 1191 | |||
| 1192 | if (isset($thisfile_riff[$RIFFsubtype]['id3 '])) { |
||
| 1193 | getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); |
||
| 1194 | |||
| 1195 | $getid3_temp = new getID3(); |
||
| 1196 | $getid3_temp->openfile($this->getid3->filename); |
||
| 1197 | $getid3_id3v2 = new getid3_id3v2($getid3_temp); |
||
| 1198 | $getid3_id3v2->StartingOffset = $thisfile_riff[$RIFFsubtype]['id3 '][0]['offset'] + 8; |
||
| 1199 | if ($thisfile_riff[$RIFFsubtype]['id3 '][0]['valid'] = $getid3_id3v2->Analyze()) { |
||
| 1200 | $info['id3v2'] = $getid3_temp->info['id3v2']; |
||
| 1201 | } |
||
| 1202 | unset($getid3_temp, $getid3_id3v2); |
||
| 1203 | } |
||
| 1204 | break; |
||
| 1205 | } |
||
| 1206 | |||
| 1207 | if (isset($thisfile_riff_WAVE['DISP']) && is_array($thisfile_riff_WAVE['DISP'])) { |
||
| 1208 | $thisfile_riff['comments']['title'][] = trim(substr($thisfile_riff_WAVE['DISP'][count($thisfile_riff_WAVE['DISP']) - 1]['data'], 4)); |
||
| 1209 | } |
||
| 1210 | if (isset($thisfile_riff_WAVE['INFO']) && is_array($thisfile_riff_WAVE['INFO'])) { |
||
| 1211 | self::parseComments($thisfile_riff_WAVE['INFO'], $thisfile_riff['comments']); |
||
| 1212 | } |
||
| 1213 | if (isset($thisfile_riff['AVI ']['INFO']) && is_array($thisfile_riff['AVI ']['INFO'])) { |
||
| 1214 | self::parseComments($thisfile_riff['AVI ']['INFO'], $thisfile_riff['comments']); |
||
| 1215 | } |
||
| 1216 | |||
| 1217 | View Code Duplication | if (empty($thisfile_audio['encoder']) && !empty($info['mpeg']['audio']['LAME']['short_version'])) { |
|
| 1218 | $thisfile_audio['encoder'] = $info['mpeg']['audio']['LAME']['short_version']; |
||
| 1219 | } |
||
| 1220 | |||
| 1221 | if (!isset($info['playtime_seconds'])) { |
||
| 1222 | $info['playtime_seconds'] = 0; |
||
| 1223 | } |
||
| 1224 | if (isset($thisfile_riff_raw['strh'][0]['dwLength']) && isset($thisfile_riff_raw['avih']['dwMicroSecPerFrame'])) { |
||
| 1225 | // needed for >2GB AVIs where 'avih' chunk only lists number of frames in that chunk, not entire movie |
||
| 1226 | $info['playtime_seconds'] = $thisfile_riff_raw['strh'][0]['dwLength'] * ($thisfile_riff_raw['avih']['dwMicroSecPerFrame'] / 1000000); |
||
| 1227 | } elseif (isset($thisfile_riff_raw['avih']['dwTotalFrames']) && isset($thisfile_riff_raw['avih']['dwMicroSecPerFrame'])) { |
||
| 1228 | $info['playtime_seconds'] = $thisfile_riff_raw['avih']['dwTotalFrames'] * ($thisfile_riff_raw['avih']['dwMicroSecPerFrame'] / 1000000); |
||
| 1229 | } |
||
| 1230 | |||
| 1231 | if ($info['playtime_seconds'] > 0) { |
||
| 1232 | if (isset($thisfile_riff_audio) && isset($thisfile_riff_video)) { |
||
| 1233 | |||
| 1234 | if (!isset($info['bitrate'])) { |
||
| 1235 | $info['bitrate'] = ((($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds']) * 8); |
||
| 1236 | } |
||
| 1237 | |||
| 1238 | View Code Duplication | } elseif (isset($thisfile_riff_audio) && !isset($thisfile_riff_video)) { |
|
| 1239 | |||
| 1240 | if (!isset($thisfile_audio['bitrate'])) { |
||
| 1241 | $thisfile_audio['bitrate'] = ((($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds']) * 8); |
||
| 1242 | } |
||
| 1243 | |||
| 1244 | } elseif (!isset($thisfile_riff_audio) && isset($thisfile_riff_video)) { |
||
| 1245 | |||
| 1246 | if (!isset($thisfile_video['bitrate'])) { |
||
| 1247 | $thisfile_video['bitrate'] = ((($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds']) * 8); |
||
| 1248 | } |
||
| 1249 | |||
| 1250 | } |
||
| 1251 | } |
||
| 1252 | |||
| 1253 | |||
| 1254 | if (isset($thisfile_riff_video) && isset($thisfile_audio['bitrate']) && ($thisfile_audio['bitrate'] > 0) && ($info['playtime_seconds'] > 0)) { |
||
| 1255 | |||
| 1256 | $info['bitrate'] = ((($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds']) * 8); |
||
| 1257 | $thisfile_audio['bitrate'] = 0; |
||
| 1258 | $thisfile_video['bitrate'] = $info['bitrate']; |
||
| 1259 | foreach ($thisfile_riff_audio as $channelnumber => $audioinfoarray) { |
||
| 1260 | $thisfile_video['bitrate'] -= $audioinfoarray['bitrate']; |
||
| 1261 | $thisfile_audio['bitrate'] += $audioinfoarray['bitrate']; |
||
| 1262 | } |
||
| 1263 | if ($thisfile_video['bitrate'] <= 0) { |
||
| 1264 | unset($thisfile_video['bitrate']); |
||
| 1265 | } |
||
| 1266 | if ($thisfile_audio['bitrate'] <= 0) { |
||
| 1267 | unset($thisfile_audio['bitrate']); |
||
| 1268 | } |
||
| 1269 | } |
||
| 1270 | |||
| 1271 | if (isset($info['mpeg']['audio'])) { |
||
| 1272 | $thisfile_audio_dataformat = 'mp'.$info['mpeg']['audio']['layer']; |
||
| 1273 | $thisfile_audio['sample_rate'] = $info['mpeg']['audio']['sample_rate']; |
||
| 1274 | $thisfile_audio['channels'] = $info['mpeg']['audio']['channels']; |
||
| 1275 | $thisfile_audio['bitrate'] = $info['mpeg']['audio']['bitrate']; |
||
| 1276 | $thisfile_audio['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']); |
||
| 1277 | if (!empty($info['mpeg']['audio']['codec'])) { |
||
| 1278 | $thisfile_audio['codec'] = $info['mpeg']['audio']['codec'].' '.$thisfile_audio['codec']; |
||
| 1279 | } |
||
| 1280 | if (!empty($thisfile_audio['streams'])) { |
||
| 1281 | foreach ($thisfile_audio['streams'] as $streamnumber => $streamdata) { |
||
| 1282 | if ($streamdata['dataformat'] == $thisfile_audio_dataformat) { |
||
| 1283 | $thisfile_audio['streams'][$streamnumber]['sample_rate'] = $thisfile_audio['sample_rate']; |
||
| 1284 | $thisfile_audio['streams'][$streamnumber]['channels'] = $thisfile_audio['channels']; |
||
| 1285 | $thisfile_audio['streams'][$streamnumber]['bitrate'] = $thisfile_audio['bitrate']; |
||
| 1286 | $thisfile_audio['streams'][$streamnumber]['bitrate_mode'] = $thisfile_audio['bitrate_mode']; |
||
| 1287 | $thisfile_audio['streams'][$streamnumber]['codec'] = $thisfile_audio['codec']; |
||
| 1288 | } |
||
| 1289 | } |
||
| 1290 | } |
||
| 1291 | $getid3_mp3 = new getid3_mp3($this->getid3); |
||
| 1292 | $thisfile_audio['encoder_options'] = $getid3_mp3->GuessEncoderOptions(); |
||
| 1293 | unset($getid3_mp3); |
||
| 1294 | } |
||
| 1295 | |||
| 1296 | |||
| 1297 | if (!empty($thisfile_riff_raw['fmt ']['wBitsPerSample']) && ($thisfile_riff_raw['fmt ']['wBitsPerSample'] > 0)) { |
||
| 1298 | switch ($thisfile_audio_dataformat) { |
||
| 1299 | case 'ac3': |
||
| 1300 | // ignore bits_per_sample |
||
| 1301 | break; |
||
| 1302 | |||
| 1303 | default: |
||
| 1304 | $thisfile_audio['bits_per_sample'] = $thisfile_riff_raw['fmt ']['wBitsPerSample']; |
||
| 1305 | break; |
||
| 1306 | } |
||
| 1307 | } |
||
| 1308 | |||
| 1309 | |||
| 1310 | if (empty($thisfile_riff_raw)) { |
||
| 1311 | unset($thisfile_riff['raw']); |
||
| 1312 | } |
||
| 1313 | if (empty($thisfile_riff_audio)) { |
||
| 1314 | unset($thisfile_riff['audio']); |
||
| 1315 | } |
||
| 1316 | if (empty($thisfile_riff_video)) { |
||
| 1317 | unset($thisfile_riff['video']); |
||
| 1318 | } |
||
| 1319 | |||
| 1320 | return true; |
||
| 1321 | } |
||
| 1322 | |||
| 1323 | public function ParseRIFFAMV($startoffset, $maxoffset) { |
||
| 1430 | |||
| 1431 | |||
| 1432 | public function ParseRIFF($startoffset, $maxoffset) { |
||
| 1717 | |||
| 1718 | public function ParseRIFFdata(&$RIFFdata) { |
||
| 1754 | |||
| 1755 | public static function parseComments(&$RIFFinfoArray, &$CommentsTargetArray) { |
||
| 1813 | |||
| 1814 | public static function parseWAVEFORMATex($WaveFormatExData) { |
||
| 1838 | |||
| 1839 | public function parseWavPackHeader($WavPackChunkData) { |
||
| 1899 | |||
| 1900 | public static function ParseBITMAPINFOHEADER($BITMAPINFOHEADER, $littleEndian=true) { |
||
| 1918 | |||
| 1919 | public static function ParseDIVXTAG($DIVXTAG, $raw=false) { |
||
| 1992 | |||
| 1993 | public static function waveSNDMtagLookup($tagshortname) { |
||
| 2015 | |||
| 2016 | public static function wFormatTagLookup($wFormatTag) { |
||
| 2184 | |||
| 2185 | public static function fourccLookup($fourcc) { |
||
| 2578 | |||
| 2579 | private function EitherEndian2Int($byteword, $signed=false) { |
||
| 2585 | |||
| 2586 | } |
Loading history...
Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.