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author | Alib <aliboba@free.fr> | 2010-03-15 17:56:22 +0100 |
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committer | Alib <aliboba@free.fr> | 2010-03-15 17:56:22 +0100 |
commit | 438912c0c4a4075a5cd74cf9689451c9df4bbe34 (patch) | |
tree | 334e03bbba01b002a34d3cbf81ee7e600ec7bff6 /getid3/module.audio.au.php | |
parent | a8012963c23e7e5eaf487ee9e192ae5c4d4ccff2 (diff) | |
download | istreamdev-438912c0c4a4075a5cd74cf9689451c9df4bbe34.tar.gz istreamdev-438912c0c4a4075a5cd74cf9689451c9df4bbe34.tar.bz2 |
New Jquery branch. Initial development version for istreamdev 1.0
Diffstat (limited to 'getid3/module.audio.au.php')
-rw-r--r-- | getid3/module.audio.au.php | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/getid3/module.audio.au.php b/getid3/module.audio.au.php deleted file mode 100644 index afbc75d..0000000 --- a/getid3/module.audio.au.php +++ /dev/null @@ -1,163 +0,0 @@ -<?php -///////////////////////////////////////////////////////////////// -/// getID3() by James Heinrich <info@getid3.org> // -// available at http://getid3.sourceforge.net // -// or http://www.getid3.org // -///////////////////////////////////////////////////////////////// -// See readme.txt for more details // -///////////////////////////////////////////////////////////////// -// // -// module.audio.au.php // -// module for analyzing AU files // -// dependencies: NONE // -// /// -///////////////////////////////////////////////////////////////// - - -class getid3_au -{ - - function getid3_au(&$fd, &$ThisFileInfo) { - - fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); - $AUheader = fread($fd, 8); - - if (substr($AUheader, 0, 4) != '.snd') { - $ThisFileInfo['error'][] = 'Expecting ".snd" at offset '.$ThisFileInfo['avdataoffset'].', found "'.substr($AUheader, 0, 4).'"'; - return false; - } - - // shortcut - $ThisFileInfo['au'] = array(); - $thisfile_au = &$ThisFileInfo['au']; - - $ThisFileInfo['fileformat'] = 'au'; - $ThisFileInfo['audio']['dataformat'] = 'au'; - $ThisFileInfo['audio']['bitrate_mode'] = 'cbr'; - $thisfile_au['encoding'] = 'ISO-8859-1'; - - $thisfile_au['header_length'] = getid3_lib::BigEndian2Int(substr($AUheader, 4, 4)); - $AUheader .= fread($fd, $thisfile_au['header_length'] - 8); - $ThisFileInfo['avdataoffset'] += $thisfile_au['header_length']; - - $thisfile_au['data_size'] = getid3_lib::BigEndian2Int(substr($AUheader, 8, 4)); - $thisfile_au['data_format_id'] = getid3_lib::BigEndian2Int(substr($AUheader, 12, 4)); - $thisfile_au['sample_rate'] = getid3_lib::BigEndian2Int(substr($AUheader, 16, 4)); - $thisfile_au['channels'] = getid3_lib::BigEndian2Int(substr($AUheader, 20, 4)); - $thisfile_au['comments']['comment'][] = trim(substr($AUheader, 24)); - - $thisfile_au['data_format'] = $this->AUdataFormatNameLookup($thisfile_au['data_format_id']); - $thisfile_au['used_bits_per_sample'] = $this->AUdataFormatUsedBitsPerSampleLookup($thisfile_au['data_format_id']); - if ($thisfile_au['bits_per_sample'] = $this->AUdataFormatBitsPerSampleLookup($thisfile_au['data_format_id'])) { - $ThisFileInfo['audio']['bits_per_sample'] = $thisfile_au['bits_per_sample']; - } else { - unset($thisfile_au['bits_per_sample']); - } - - $ThisFileInfo['audio']['sample_rate'] = $thisfile_au['sample_rate']; - $ThisFileInfo['audio']['channels'] = $thisfile_au['channels']; - - if (($ThisFileInfo['avdataoffset'] + $thisfile_au['data_size']) > $ThisFileInfo['avdataend']) { - $ThisFileInfo['warning'][] = 'Possible truncated file - expecting "'.$thisfile_au['data_size'].'" bytes of audio data, only found '.($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']).' bytes"'; - } - - $ThisFileInfo['playtime_seconds'] = $thisfile_au['data_size'] / ($thisfile_au['sample_rate'] * $thisfile_au['channels'] * ($thisfile_au['used_bits_per_sample'] / 8)); - $ThisFileInfo['audio']['bitrate'] = ($thisfile_au['data_size'] * 8) / $ThisFileInfo['playtime_seconds']; - - return true; - } - - function AUdataFormatNameLookup($id) { - static $AUdataFormatNameLookup = array( - 0 => 'unspecified format', - 1 => '8-bit mu-law', - 2 => '8-bit linear', - 3 => '16-bit linear', - 4 => '24-bit linear', - 5 => '32-bit linear', - 6 => 'floating-point', - 7 => 'double-precision float', - 8 => 'fragmented sampled data', - 9 => 'SUN_FORMAT_NESTED', - 10 => 'DSP program', - 11 => '8-bit fixed-point', - 12 => '16-bit fixed-point', - 13 => '24-bit fixed-point', - 14 => '32-bit fixed-point', - - 16 => 'non-audio display data', - 17 => 'SND_FORMAT_MULAW_SQUELCH', - 18 => '16-bit linear with emphasis', - 19 => '16-bit linear with compression', - 20 => '16-bit linear with emphasis + compression', - 21 => 'Music Kit DSP commands', - 22 => 'SND_FORMAT_DSP_COMMANDS_SAMPLES', - 23 => 'CCITT g.721 4-bit ADPCM', - 24 => 'CCITT g.722 ADPCM', - 25 => 'CCITT g.723 3-bit ADPCM', - 26 => 'CCITT g.723 5-bit ADPCM', - 27 => 'A-Law 8-bit' - ); - return (isset($AUdataFormatNameLookup[$id]) ? $AUdataFormatNameLookup[$id] : false); - } - - function AUdataFormatBitsPerSampleLookup($id) { - static $AUdataFormatBitsPerSampleLookup = array( - 1 => 8, - 2 => 8, - 3 => 16, - 4 => 24, - 5 => 32, - 6 => 32, - 7 => 64, - - 11 => 8, - 12 => 16, - 13 => 24, - 14 => 32, - - 18 => 16, - 19 => 16, - 20 => 16, - - 23 => 16, - - 25 => 16, - 26 => 16, - 27 => 8 - ); - return (isset($AUdataFormatBitsPerSampleLookup[$id]) ? $AUdataFormatBitsPerSampleLookup[$id] : false); - } - - function AUdataFormatUsedBitsPerSampleLookup($id) { - static $AUdataFormatUsedBitsPerSampleLookup = array( - 1 => 8, - 2 => 8, - 3 => 16, - 4 => 24, - 5 => 32, - 6 => 32, - 7 => 64, - - 11 => 8, - 12 => 16, - 13 => 24, - 14 => 32, - - 18 => 16, - 19 => 16, - 20 => 16, - - 23 => 4, - - 25 => 3, - 26 => 5, - 27 => 8, - ); - return (isset($AUdataFormatUsedBitsPerSampleLookup[$id]) ? $AUdataFormatUsedBitsPerSampleLookup[$id] : false); - } - -} - - -?>
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