ntwb /
wordpress
| Conditions | 47 |
| Paths | > 20000 |
| Total Lines | 358 |
| Code Lines | 248 |
| Lines | 6 |
| Ratio | 1.68 % |
| Changes | 0 | ||
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php |
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| 22 | public function Analyze() { |
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| 23 | $info = &$this->getid3->info; |
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| 24 | |||
| 25 | $info['fileformat'] = 'ogg'; |
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| 26 | |||
| 27 | // Warn about illegal tags - only vorbiscomments are allowed |
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| 28 | if (isset($info['id3v2'])) { |
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| 29 | $info['warning'][] = 'Illegal ID3v2 tag present.'; |
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| 30 | } |
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| 31 | if (isset($info['id3v1'])) { |
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| 32 | $info['warning'][] = 'Illegal ID3v1 tag present.'; |
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| 33 | } |
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| 34 | if (isset($info['ape'])) { |
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| 35 | $info['warning'][] = 'Illegal APE tag present.'; |
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| 36 | } |
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| 37 | |||
| 38 | |||
| 39 | // Page 1 - Stream Header |
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| 40 | |||
| 41 | $this->fseek($info['avdataoffset']); |
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| 42 | |||
| 43 | $oggpageinfo = $this->ParseOggPageHeader(); |
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| 44 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; |
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| 45 | |||
| 46 | if ($this->ftell() >= $this->getid3->fread_buffer_size()) { |
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| 47 | $info['error'][] = 'Could not find start of Ogg page in the first '.$this->getid3->fread_buffer_size().' bytes (this might not be an Ogg-Vorbis file?)'; |
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| 48 | unset($info['fileformat']); |
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| 49 | unset($info['ogg']); |
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| 50 | return false; |
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| 51 | } |
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| 52 | |||
| 53 | $filedata = $this->fread($oggpageinfo['page_length']); |
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| 54 | $filedataoffset = 0; |
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| 55 | |||
| 56 | if (substr($filedata, 0, 4) == 'fLaC') { |
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| 57 | |||
| 58 | $info['audio']['dataformat'] = 'flac'; |
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| 59 | $info['audio']['bitrate_mode'] = 'vbr'; |
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| 60 | $info['audio']['lossless'] = true; |
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| 61 | |||
| 62 | } elseif (substr($filedata, 1, 6) == 'vorbis') { |
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| 63 | |||
| 64 | $this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo); |
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| 65 | |||
| 66 | } elseif (substr($filedata, 0, 8) == 'OpusHead') { |
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| 67 | |||
| 68 | if( $this->ParseOpusPageHeader($filedata, $filedataoffset, $oggpageinfo) == false ) { |
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|
|
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| 69 | return false; |
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| 70 | } |
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| 71 | |||
| 72 | } elseif (substr($filedata, 0, 8) == 'Speex ') { |
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| 73 | |||
| 74 | // http://www.speex.org/manual/node10.html |
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| 75 | |||
| 76 | $info['audio']['dataformat'] = 'speex'; |
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| 77 | $info['mime_type'] = 'audio/speex'; |
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| 78 | $info['audio']['bitrate_mode'] = 'abr'; |
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| 79 | $info['audio']['lossless'] = false; |
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| 80 | |||
| 81 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_string'] = substr($filedata, $filedataoffset, 8); // hard-coded to 'Speex ' |
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| 82 | $filedataoffset += 8; |
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| 83 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version'] = substr($filedata, $filedataoffset, 20); |
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| 84 | $filedataoffset += 20; |
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| 85 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version_id'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 86 | $filedataoffset += 4; |
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| 87 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['header_size'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 88 | $filedataoffset += 4; |
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| 89 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 90 | $filedataoffset += 4; |
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| 91 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 92 | $filedataoffset += 4; |
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| 93 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode_bitstream_version'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 94 | $filedataoffset += 4; |
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| 95 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 96 | $filedataoffset += 4; |
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| 97 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['bitrate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 98 | $filedataoffset += 4; |
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| 99 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['framesize'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 100 | $filedataoffset += 4; |
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| 101 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 102 | $filedataoffset += 4; |
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| 103 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['frames_per_packet'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 104 | $filedataoffset += 4; |
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| 105 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['extra_headers'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 106 | $filedataoffset += 4; |
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| 107 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved1'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 108 | $filedataoffset += 4; |
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| 109 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved2'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 110 | $filedataoffset += 4; |
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| 111 | |||
| 112 | $info['speex']['speex_version'] = trim($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version']); |
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| 113 | $info['speex']['sample_rate'] = $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate']; |
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| 114 | $info['speex']['channels'] = $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels']; |
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| 115 | $info['speex']['vbr'] = (bool) $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr']; |
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| 116 | $info['speex']['band_type'] = $this->SpeexBandModeLookup($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode']); |
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| 117 | |||
| 118 | $info['audio']['sample_rate'] = $info['speex']['sample_rate']; |
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| 119 | $info['audio']['channels'] = $info['speex']['channels']; |
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| 120 | if ($info['speex']['vbr']) { |
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| 121 | $info['audio']['bitrate_mode'] = 'vbr'; |
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| 122 | } |
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| 123 | |||
| 124 | } elseif (substr($filedata, 0, 7) == "\x80".'theora') { |
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| 125 | |||
| 126 | // http://www.theora.org/doc/Theora.pdf (section 6.2) |
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| 127 | |||
| 128 | $info['ogg']['pageheader']['theora']['theora_magic'] = substr($filedata, $filedataoffset, 7); // hard-coded to "\x80.'theora' |
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| 129 | $filedataoffset += 7; |
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| 130 | $info['ogg']['pageheader']['theora']['version_major'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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| 131 | $filedataoffset += 1; |
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| 132 | $info['ogg']['pageheader']['theora']['version_minor'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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| 133 | $filedataoffset += 1; |
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| 134 | $info['ogg']['pageheader']['theora']['version_revision'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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| 135 | $filedataoffset += 1; |
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| 136 | $info['ogg']['pageheader']['theora']['frame_width_macroblocks'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); |
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| 137 | $filedataoffset += 2; |
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| 138 | $info['ogg']['pageheader']['theora']['frame_height_macroblocks'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); |
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| 139 | $filedataoffset += 2; |
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| 140 | $info['ogg']['pageheader']['theora']['resolution_x'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); |
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| 141 | $filedataoffset += 3; |
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| 142 | $info['ogg']['pageheader']['theora']['resolution_y'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); |
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| 143 | $filedataoffset += 3; |
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| 144 | $info['ogg']['pageheader']['theora']['picture_offset_x'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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| 145 | $filedataoffset += 1; |
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| 146 | $info['ogg']['pageheader']['theora']['picture_offset_y'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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| 147 | $filedataoffset += 1; |
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| 148 | $info['ogg']['pageheader']['theora']['frame_rate_numerator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 149 | $filedataoffset += 4; |
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| 150 | $info['ogg']['pageheader']['theora']['frame_rate_denominator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 151 | $filedataoffset += 4; |
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| 152 | $info['ogg']['pageheader']['theora']['pixel_aspect_numerator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); |
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| 153 | $filedataoffset += 3; |
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| 154 | $info['ogg']['pageheader']['theora']['pixel_aspect_denominator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); |
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| 155 | $filedataoffset += 3; |
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| 156 | $info['ogg']['pageheader']['theora']['color_space_id'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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| 157 | $filedataoffset += 1; |
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| 158 | $info['ogg']['pageheader']['theora']['nominal_bitrate'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); |
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| 159 | $filedataoffset += 3; |
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| 160 | $info['ogg']['pageheader']['theora']['flags'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); |
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| 161 | $filedataoffset += 2; |
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| 162 | |||
| 163 | $info['ogg']['pageheader']['theora']['quality'] = ($info['ogg']['pageheader']['theora']['flags'] & 0xFC00) >> 10; |
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| 164 | $info['ogg']['pageheader']['theora']['kfg_shift'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x03E0) >> 5; |
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| 165 | $info['ogg']['pageheader']['theora']['pixel_format_id'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x0018) >> 3; |
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| 166 | $info['ogg']['pageheader']['theora']['reserved'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x0007) >> 0; // should be 0 |
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| 167 | $info['ogg']['pageheader']['theora']['color_space'] = self::TheoraColorSpace($info['ogg']['pageheader']['theora']['color_space_id']); |
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| 168 | $info['ogg']['pageheader']['theora']['pixel_format'] = self::TheoraPixelFormat($info['ogg']['pageheader']['theora']['pixel_format_id']); |
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| 169 | |||
| 170 | $info['video']['dataformat'] = 'theora'; |
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| 171 | $info['mime_type'] = 'video/ogg'; |
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| 172 | //$info['audio']['bitrate_mode'] = 'abr'; |
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| 173 | //$info['audio']['lossless'] = false; |
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| 174 | $info['video']['resolution_x'] = $info['ogg']['pageheader']['theora']['resolution_x']; |
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| 175 | $info['video']['resolution_y'] = $info['ogg']['pageheader']['theora']['resolution_y']; |
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| 176 | View Code Duplication | if ($info['ogg']['pageheader']['theora']['frame_rate_denominator'] > 0) { |
|
| 177 | $info['video']['frame_rate'] = (float) $info['ogg']['pageheader']['theora']['frame_rate_numerator'] / $info['ogg']['pageheader']['theora']['frame_rate_denominator']; |
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| 178 | } |
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| 179 | View Code Duplication | if ($info['ogg']['pageheader']['theora']['pixel_aspect_denominator'] > 0) { |
|
| 180 | $info['video']['pixel_aspect_ratio'] = (float) $info['ogg']['pageheader']['theora']['pixel_aspect_numerator'] / $info['ogg']['pageheader']['theora']['pixel_aspect_denominator']; |
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| 181 | } |
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| 182 | $info['warning'][] = 'Ogg Theora (v3) not fully supported in this version of getID3 ['.$this->getid3->version().'] -- bitrate, playtime and all audio data are currently unavailable'; |
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| 183 | |||
| 184 | |||
| 185 | } elseif (substr($filedata, 0, 8) == "fishead\x00") { |
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| 186 | |||
| 187 | // Ogg Skeleton version 3.0 Format Specification |
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| 188 | // http://xiph.org/ogg/doc/skeleton.html |
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| 189 | $filedataoffset += 8; |
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| 190 | $info['ogg']['skeleton']['fishead']['raw']['version_major'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); |
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| 191 | $filedataoffset += 2; |
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| 192 | $info['ogg']['skeleton']['fishead']['raw']['version_minor'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); |
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| 193 | $filedataoffset += 2; |
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| 194 | $info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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| 195 | $filedataoffset += 8; |
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| 196 | $info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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| 197 | $filedataoffset += 8; |
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| 198 | $info['ogg']['skeleton']['fishead']['raw']['basetime_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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| 199 | $filedataoffset += 8; |
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| 200 | $info['ogg']['skeleton']['fishead']['raw']['basetime_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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| 201 | $filedataoffset += 8; |
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| 202 | $info['ogg']['skeleton']['fishead']['raw']['utc'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 20)); |
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| 203 | $filedataoffset += 20; |
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| 204 | |||
| 205 | $info['ogg']['skeleton']['fishead']['version'] = $info['ogg']['skeleton']['fishead']['raw']['version_major'].'.'.$info['ogg']['skeleton']['fishead']['raw']['version_minor']; |
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| 206 | $info['ogg']['skeleton']['fishead']['presentationtime'] = $info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'] / $info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator']; |
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| 207 | $info['ogg']['skeleton']['fishead']['basetime'] = $info['ogg']['skeleton']['fishead']['raw']['basetime_numerator'] / $info['ogg']['skeleton']['fishead']['raw']['basetime_denominator']; |
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| 208 | $info['ogg']['skeleton']['fishead']['utc'] = $info['ogg']['skeleton']['fishead']['raw']['utc']; |
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| 209 | |||
| 210 | |||
| 211 | $counter = 0; |
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| 212 | do { |
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| 213 | $oggpageinfo = $this->ParseOggPageHeader(); |
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| 214 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno'].'.'.$counter++] = $oggpageinfo; |
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| 215 | $filedata = $this->fread($oggpageinfo['page_length']); |
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| 216 | $this->fseek($oggpageinfo['page_end_offset']); |
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| 217 | |||
| 218 | if (substr($filedata, 0, 8) == "fisbone\x00") { |
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| 219 | |||
| 220 | $filedataoffset = 8; |
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| 221 | $info['ogg']['skeleton']['fisbone']['raw']['message_header_offset'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 222 | $filedataoffset += 4; |
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| 223 | $info['ogg']['skeleton']['fisbone']['raw']['serial_number'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 224 | $filedataoffset += 4; |
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| 225 | $info['ogg']['skeleton']['fisbone']['raw']['number_header_packets'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 226 | $filedataoffset += 4; |
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| 227 | $info['ogg']['skeleton']['fisbone']['raw']['granulerate_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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| 228 | $filedataoffset += 8; |
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| 229 | $info['ogg']['skeleton']['fisbone']['raw']['granulerate_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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| 230 | $filedataoffset += 8; |
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| 231 | $info['ogg']['skeleton']['fisbone']['raw']['basegranule'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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| 232 | $filedataoffset += 8; |
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| 233 | $info['ogg']['skeleton']['fisbone']['raw']['preroll'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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| 234 | $filedataoffset += 4; |
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| 235 | $info['ogg']['skeleton']['fisbone']['raw']['granuleshift'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
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| 236 | $filedataoffset += 1; |
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| 237 | $info['ogg']['skeleton']['fisbone']['raw']['padding'] = substr($filedata, $filedataoffset, 3); |
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| 238 | $filedataoffset += 3; |
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| 239 | |||
| 240 | } elseif (substr($filedata, 1, 6) == 'theora') { |
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| 241 | |||
| 242 | $info['video']['dataformat'] = 'theora1'; |
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| 243 | $info['error'][] = 'Ogg Theora (v1) not correctly handled in this version of getID3 ['.$this->getid3->version().']'; |
||
| 244 | //break; |
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| 245 | |||
| 246 | } elseif (substr($filedata, 1, 6) == 'vorbis') { |
||
| 247 | |||
| 248 | $this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo); |
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| 249 | |||
| 250 | } else { |
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| 251 | $info['error'][] = 'unexpected'; |
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| 252 | //break; |
||
| 253 | } |
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| 254 | //} while ($oggpageinfo['page_seqno'] == 0); |
||
| 255 | } while (($oggpageinfo['page_seqno'] == 0) && (substr($filedata, 0, 8) != "fisbone\x00")); |
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| 256 | |||
| 257 | $this->fseek($oggpageinfo['page_start_offset']); |
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| 258 | |||
| 259 | $info['error'][] = 'Ogg Skeleton not correctly handled in this version of getID3 ['.$this->getid3->version().']'; |
||
| 260 | //return false; |
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| 261 | |||
| 262 | } else { |
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| 263 | |||
| 264 | $info['error'][] = 'Expecting either "Speex ", "OpusHead" or "vorbis" identifier strings, found "'.substr($filedata, 0, 8).'"'; |
||
| 265 | unset($info['ogg']); |
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| 266 | unset($info['mime_type']); |
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| 267 | return false; |
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| 268 | |||
| 269 | } |
||
| 270 | |||
| 271 | // Page 2 - Comment Header |
||
| 272 | $oggpageinfo = $this->ParseOggPageHeader(); |
||
| 273 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; |
||
| 274 | |||
| 275 | switch ($info['audio']['dataformat']) { |
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| 276 | case 'vorbis': |
||
| 277 | $filedata = $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); |
||
| 278 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['packet_type'] = getid3_lib::LittleEndian2Int(substr($filedata, 0, 1)); |
||
| 279 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, 1, 6); // hard-coded to 'vorbis' |
||
| 280 | |||
| 281 | $this->ParseVorbisComments(); |
||
| 282 | break; |
||
| 283 | |||
| 284 | case 'flac': |
||
| 285 | $flac = new getid3_flac($this->getid3); |
||
| 286 | if (!$flac->parseMETAdata()) { |
||
| 287 | $info['error'][] = 'Failed to parse FLAC headers'; |
||
| 288 | return false; |
||
| 289 | } |
||
| 290 | unset($flac); |
||
| 291 | break; |
||
| 292 | |||
| 293 | case 'speex': |
||
| 294 | $this->fseek($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length'], SEEK_CUR); |
||
| 295 | $this->ParseVorbisComments(); |
||
| 296 | break; |
||
| 297 | |||
| 298 | case 'opus': |
||
| 299 | $filedata = $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); |
||
| 300 | $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, 0, 8); // hard-coded to 'OpusTags' |
||
| 301 | if(substr($filedata, 0, 8) != 'OpusTags') { |
||
| 302 | $info['error'][] = 'Expected "OpusTags" as header but got "'.substr($filedata, 0, 8).'"'; |
||
| 303 | return false; |
||
| 304 | } |
||
| 305 | |||
| 306 | $this->ParseVorbisComments(); |
||
| 307 | break; |
||
| 308 | |||
| 309 | } |
||
| 310 | |||
| 311 | // Last Page - Number of Samples |
||
| 312 | if (!getid3_lib::intValueSupported($info['avdataend'])) { |
||
| 313 | |||
| 314 | $info['warning'][] = 'Unable to parse Ogg end chunk file (PHP does not support file operations beyond '.round(PHP_INT_MAX / 1073741824).'GB)'; |
||
| 315 | |||
| 316 | } else { |
||
| 317 | |||
| 318 | $this->fseek(max($info['avdataend'] - $this->getid3->fread_buffer_size(), 0)); |
||
| 319 | $LastChunkOfOgg = strrev($this->fread($this->getid3->fread_buffer_size())); |
||
| 320 | if ($LastOggSpostion = strpos($LastChunkOfOgg, 'SggO')) { |
||
| 321 | $this->fseek($info['avdataend'] - ($LastOggSpostion + strlen('SggO'))); |
||
| 322 | $info['avdataend'] = $this->ftell(); |
||
| 323 | $info['ogg']['pageheader']['eos'] = $this->ParseOggPageHeader(); |
||
| 324 | $info['ogg']['samples'] = $info['ogg']['pageheader']['eos']['pcm_abs_position']; |
||
| 325 | if ($info['ogg']['samples'] == 0) { |
||
| 326 | $info['error'][] = 'Corrupt Ogg file: eos.number of samples == zero'; |
||
| 327 | return false; |
||
| 328 | } |
||
| 329 | if (!empty($info['audio']['sample_rate'])) { |
||
| 330 | $info['ogg']['bitrate_average'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / ($info['ogg']['samples'] / $info['audio']['sample_rate']); |
||
| 331 | } |
||
| 332 | } |
||
| 333 | |||
| 334 | } |
||
| 335 | |||
| 336 | if (!empty($info['ogg']['bitrate_average'])) { |
||
| 337 | $info['audio']['bitrate'] = $info['ogg']['bitrate_average']; |
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| 338 | } elseif (!empty($info['ogg']['bitrate_nominal'])) { |
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| 339 | $info['audio']['bitrate'] = $info['ogg']['bitrate_nominal']; |
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| 340 | } elseif (!empty($info['ogg']['bitrate_min']) && !empty($info['ogg']['bitrate_max'])) { |
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| 341 | $info['audio']['bitrate'] = ($info['ogg']['bitrate_min'] + $info['ogg']['bitrate_max']) / 2; |
||
| 342 | } |
||
| 343 | if (isset($info['audio']['bitrate']) && !isset($info['playtime_seconds'])) { |
||
| 344 | if ($info['audio']['bitrate'] == 0) { |
||
| 345 | $info['error'][] = 'Corrupt Ogg file: bitrate_audio == zero'; |
||
| 346 | return false; |
||
| 347 | } |
||
| 348 | $info['playtime_seconds'] = (float) ((($info['avdataend'] - $info['avdataoffset']) * 8) / $info['audio']['bitrate']); |
||
| 349 | } |
||
| 350 | |||
| 351 | if (isset($info['ogg']['vendor'])) { |
||
| 352 | $info['audio']['encoder'] = preg_replace('/^Encoded with /', '', $info['ogg']['vendor']); |
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| 353 | |||
| 354 | // Vorbis only |
||
| 355 | if ($info['audio']['dataformat'] == 'vorbis') { |
||
| 356 | |||
| 357 | // Vorbis 1.0 starts with Xiph.Org |
||
| 358 | if (preg_match('/^Xiph.Org/', $info['audio']['encoder'])) { |
||
| 359 | |||
| 360 | if ($info['audio']['bitrate_mode'] == 'abr') { |
||
| 361 | |||
| 362 | // Set -b 128 on abr files |
||
| 363 | $info['audio']['encoder_options'] = '-b '.round($info['ogg']['bitrate_nominal'] / 1000); |
||
| 364 | |||
| 365 | } elseif (($info['audio']['bitrate_mode'] == 'vbr') && ($info['audio']['channels'] == 2) && ($info['audio']['sample_rate'] >= 44100) && ($info['audio']['sample_rate'] <= 48000)) { |
||
| 366 | // Set -q N on vbr files |
||
| 367 | $info['audio']['encoder_options'] = '-q '.$this->get_quality_from_nominal_bitrate($info['ogg']['bitrate_nominal']); |
||
| 368 | |||
| 369 | } |
||
| 370 | } |
||
| 371 | |||
| 372 | if (empty($info['audio']['encoder_options']) && !empty($info['ogg']['bitrate_nominal'])) { |
||
| 373 | $info['audio']['encoder_options'] = 'Nominal bitrate: '.intval(round($info['ogg']['bitrate_nominal'] / 1000)).'kbps'; |
||
| 374 | } |
||
| 375 | } |
||
| 376 | } |
||
| 377 | |||
| 378 | return true; |
||
| 379 | } |
||
| 380 | |||
| 840 |
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When comparing two booleans, it is generally considered safer to use the strict comparison operator.