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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.optimfrog.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.optimfrog.php')
-rw-r--r-- | getid3/module.audio.optimfrog.php | 408 |
1 files changed, 0 insertions, 408 deletions
diff --git a/getid3/module.audio.optimfrog.php b/getid3/module.audio.optimfrog.php deleted file mode 100644 index 3c2dfb0..0000000 --- a/getid3/module.audio.optimfrog.php +++ /dev/null @@ -1,408 +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.optimfrog.php // -// module for analyzing OptimFROG audio files // -// dependencies: module.audio.riff.php // -// /// -///////////////////////////////////////////////////////////////// - -getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.riff.php', __FILE__, true); - -class getid3_optimfrog -{ - - function getid3_optimfrog(&$fd, &$ThisFileInfo) { - $ThisFileInfo['fileformat'] = 'ofr'; - $ThisFileInfo['audio']['dataformat'] = 'ofr'; - $ThisFileInfo['audio']['bitrate_mode'] = 'vbr'; - $ThisFileInfo['audio']['lossless'] = true; - - fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); - $OFRheader = fread($fd, 8); - if (substr($OFRheader, 0, 5) == '*RIFF') { - - return $this->ParseOptimFROGheader42($fd, $ThisFileInfo); - - } elseif (substr($OFRheader, 0, 3) == 'OFR') { - - return $this->ParseOptimFROGheader45($fd, $ThisFileInfo); - - } - - $ThisFileInfo['error'][] = 'Expecting "*RIFF" or "OFR " at offset '.$ThisFileInfo['avdataoffset'].', found "'.$OFRheader.'"'; - unset($ThisFileInfo['fileformat']); - return false; - } - - - function ParseOptimFROGheader42(&$fd, &$ThisFileInfo) { - // for fileformat of v4.21 and older - - fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); - $OptimFROGheaderData = fread($fd, 45); - $ThisFileInfo['avdataoffset'] = 45; - - $OptimFROGencoderVersion_raw = getid3_lib::LittleEndian2Int(substr($OptimFROGheaderData, 0, 1)); - $OptimFROGencoderVersion_major = floor($OptimFROGencoderVersion_raw / 10); - $OptimFROGencoderVersion_minor = $OptimFROGencoderVersion_raw - ($OptimFROGencoderVersion_major * 10); - $RIFFdata = substr($OptimFROGheaderData, 1, 44); - $OrignalRIFFheaderSize = getid3_lib::LittleEndian2Int(substr($RIFFdata, 4, 4)) + 8; - $OrignalRIFFdataSize = getid3_lib::LittleEndian2Int(substr($RIFFdata, 40, 4)) + 44; - - if ($OrignalRIFFheaderSize > $OrignalRIFFdataSize) { - $ThisFileInfo['avdataend'] -= ($OrignalRIFFheaderSize - $OrignalRIFFdataSize); - fseek($fd, $ThisFileInfo['avdataend'], SEEK_SET); - $RIFFdata .= fread($fd, $OrignalRIFFheaderSize - $OrignalRIFFdataSize); - } - - // move the data chunk after all other chunks (if any) - // so that the RIFF parser doesn't see EOF when trying - // to skip over the data chunk - $RIFFdata = substr($RIFFdata, 0, 36).substr($RIFFdata, 44).substr($RIFFdata, 36, 8); - getid3_riff::ParseRIFFdata($RIFFdata, $ThisFileInfo); - - $ThisFileInfo['audio']['encoder'] = 'OptimFROG '.$OptimFROGencoderVersion_major.'.'.$OptimFROGencoderVersion_minor; - $ThisFileInfo['audio']['channels'] = $ThisFileInfo['riff']['audio'][0]['channels']; - $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['riff']['audio'][0]['sample_rate']; - $ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['riff']['audio'][0]['bits_per_sample']; - $ThisFileInfo['playtime_seconds'] = $OrignalRIFFdataSize / ($ThisFileInfo['audio']['channels'] * $ThisFileInfo['audio']['sample_rate'] * ($ThisFileInfo['audio']['bits_per_sample'] / 8)); - $ThisFileInfo['audio']['bitrate'] = (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8) / $ThisFileInfo['playtime_seconds']; - - return true; - } - - - function ParseOptimFROGheader45(&$fd, &$ThisFileInfo) { - // for fileformat of v4.50a and higher - - $RIFFdata = ''; - fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); - while (!feof($fd) && (ftell($fd) < $ThisFileInfo['avdataend'])) { - $BlockOffset = ftell($fd); - $BlockData = fread($fd, 8); - $offset = 8; - $BlockName = substr($BlockData, 0, 4); - $BlockSize = getid3_lib::LittleEndian2Int(substr($BlockData, 4, 4)); - - if ($BlockName == 'OFRX') { - $BlockName = 'OFR '; - } - if (!isset($ThisFileInfo['ofr'][$BlockName])) { - $ThisFileInfo['ofr'][$BlockName] = array(); - } - $thisfile_ofr_thisblock = &$ThisFileInfo['ofr'][$BlockName]; - - switch ($BlockName) { - case 'OFR ': - - // shortcut - $thisfile_ofr_thisblock['offset'] = $BlockOffset; - $thisfile_ofr_thisblock['size'] = $BlockSize; - - $ThisFileInfo['audio']['encoder'] = 'OptimFROG 4.50 alpha'; - switch ($BlockSize) { - case 12: - case 15: - // good - break; - - default: - $ThisFileInfo['warning'][] = '"'.$BlockName.'" contains more data than expected (expected 12 or 15 bytes, found '.$BlockSize.' bytes)'; - break; - } - $BlockData .= fread($fd, $BlockSize); - - $thisfile_ofr_thisblock['total_samples'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 6)); - $offset += 6; - $thisfile_ofr_thisblock['raw']['sample_type'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1)); - $thisfile_ofr_thisblock['sample_type'] = $this->OptimFROGsampleTypeLookup($thisfile_ofr_thisblock['raw']['sample_type']); - $offset += 1; - $thisfile_ofr_thisblock['channel_config'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1)); - $thisfile_ofr_thisblock['channels'] = $thisfile_ofr_thisblock['channel_config']; - $offset += 1; - $thisfile_ofr_thisblock['sample_rate'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 4)); - $offset += 4; - - if ($BlockSize > 12) { - - // OFR 4.504b or higher - $thisfile_ofr_thisblock['channels'] = $this->OptimFROGchannelConfigNumChannelsLookup($thisfile_ofr_thisblock['channel_config']); - $thisfile_ofr_thisblock['raw']['encoder_id'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 2)); - $thisfile_ofr_thisblock['encoder'] = $this->OptimFROGencoderNameLookup($thisfile_ofr_thisblock['raw']['encoder_id']); - $offset += 2; - $thisfile_ofr_thisblock['raw']['compression'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1)); - $thisfile_ofr_thisblock['compression'] = $this->OptimFROGcompressionLookup($thisfile_ofr_thisblock['raw']['compression']); - $thisfile_ofr_thisblock['speedup'] = $this->OptimFROGspeedupLookup($thisfile_ofr_thisblock['raw']['compression']); - $offset += 1; - - $ThisFileInfo['audio']['encoder'] = 'OptimFROG '.$thisfile_ofr_thisblock['encoder']; - $ThisFileInfo['audio']['encoder_options'] = '--mode '.$thisfile_ofr_thisblock['compression']; - - if ((($thisfile_ofr_thisblock['raw']['encoder_id'] & 0xF0) >> 4) == 7) { // v4.507 - if (strtolower(getid3_lib::fileextension($ThisFileInfo['filename'])) == 'ofs') { - // OptimFROG DualStream format is lossy, but as of v4.507 there is no way to tell the difference - // between lossless and lossy other than the file extension. - $ThisFileInfo['audio']['dataformat'] = 'ofs'; - $ThisFileInfo['audio']['lossless'] = true; - } - } - - } - - $ThisFileInfo['audio']['channels'] = $thisfile_ofr_thisblock['channels']; - $ThisFileInfo['audio']['sample_rate'] = $thisfile_ofr_thisblock['sample_rate']; - $ThisFileInfo['audio']['bits_per_sample'] = $this->OptimFROGbitsPerSampleTypeLookup($thisfile_ofr_thisblock['raw']['sample_type']); - break; - - - case 'COMP': - // unlike other block types, there CAN be multiple COMP blocks - - $COMPdata['offset'] = $BlockOffset; - $COMPdata['size'] = $BlockSize; - - if ($ThisFileInfo['avdataoffset'] == 0) { - $ThisFileInfo['avdataoffset'] = $BlockOffset; - } - - // Only interested in first 14 bytes (only first 12 needed for v4.50 alpha), not actual audio data - $BlockData .= fread($fd, 14); - fseek($fd, $BlockSize - 14, SEEK_CUR); - - $COMPdata['crc_32'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 4)); - $offset += 4; - $COMPdata['sample_count'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 4)); - $offset += 4; - $COMPdata['raw']['sample_type'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1)); - $COMPdata['sample_type'] = $this->OptimFROGsampleTypeLookup($COMPdata['raw']['sample_type']); - $offset += 1; - $COMPdata['raw']['channel_configuration'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 1)); - $COMPdata['channel_configuration'] = $this->OptimFROGchannelConfigurationLookup($COMPdata['raw']['channel_configuration']); - $offset += 1; - $COMPdata['raw']['algorithm_id'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 2)); - //$COMPdata['algorithm'] = OptimFROGalgorithmNameLookup($COMPdata['raw']['algorithm_id']); - $offset += 2; - - if ($ThisFileInfo['ofr']['OFR ']['size'] > 12) { - - // OFR 4.504b or higher - $COMPdata['raw']['encoder_id'] = getid3_lib::LittleEndian2Int(substr($BlockData, $offset, 2)); - $COMPdata['encoder'] = $this->OptimFROGencoderNameLookup($COMPdata['raw']['encoder_id']); - $offset += 2; - - } - - if ($COMPdata['crc_32'] == 0x454E4F4E) { - // ASCII value of 'NONE' - placeholder value in v4.50a - $COMPdata['crc_32'] = false; - } - - $thisfile_ofr_thisblock[] = $COMPdata; - break; - - case 'HEAD': - $thisfile_ofr_thisblock['offset'] = $BlockOffset; - $thisfile_ofr_thisblock['size'] = $BlockSize; - - $RIFFdata .= fread($fd, $BlockSize); - break; - - case 'TAIL': - $thisfile_ofr_thisblock['offset'] = $BlockOffset; - $thisfile_ofr_thisblock['size'] = $BlockSize; - - if ($BlockSize > 0) { - $RIFFdata .= fread($fd, $BlockSize); - } - break; - - case 'RECV': - // block contains no useful meta data - simply note and skip - - $thisfile_ofr_thisblock['offset'] = $BlockOffset; - $thisfile_ofr_thisblock['size'] = $BlockSize; - - fseek($fd, $BlockSize, SEEK_CUR); - break; - - - case 'APET': - // APEtag v2 - - $thisfile_ofr_thisblock['offset'] = $BlockOffset; - $thisfile_ofr_thisblock['size'] = $BlockSize; - $ThisFileInfo['warning'][] = 'APEtag processing inside OptimFROG not supported in this version ('.GETID3_VERSION.') of getID3()'; - - fseek($fd, $BlockSize, SEEK_CUR); - break; - - - case 'MD5 ': - // APEtag v2 - - $thisfile_ofr_thisblock['offset'] = $BlockOffset; - $thisfile_ofr_thisblock['size'] = $BlockSize; - - if ($BlockSize == 16) { - - $thisfile_ofr_thisblock['md5_binary'] = fread($fd, $BlockSize); - $thisfile_ofr_thisblock['md5_string'] = getid3_lib::PrintHexBytes($thisfile_ofr_thisblock['md5_binary'], true, false, false); - $ThisFileInfo['md5_data_source'] = $thisfile_ofr_thisblock['md5_string']; - - } else { - - $ThisFileInfo['warning'][] = 'Expecting block size of 16 in "MD5 " chunk, found '.$BlockSize.' instead'; - fseek($fd, $BlockSize, SEEK_CUR); - - } - break; - - - default: - $thisfile_ofr_thisblock['offset'] = $BlockOffset; - $thisfile_ofr_thisblock['size'] = $BlockSize; - - $ThisFileInfo['warning'][] = 'Unhandled OptimFROG block type "'.$BlockName.'" at offset '.$thisfile_ofr_thisblock['offset']; - fseek($fd, $BlockSize, SEEK_CUR); - break; - } - } - if (isset($ThisFileInfo['ofr']['TAIL']['offset'])) { - $ThisFileInfo['avdataend'] = $ThisFileInfo['ofr']['TAIL']['offset']; - } - - $ThisFileInfo['playtime_seconds'] = (float) $ThisFileInfo['ofr']['OFR ']['total_samples'] / ($ThisFileInfo['audio']['channels'] * $ThisFileInfo['audio']['sample_rate']); - $ThisFileInfo['audio']['bitrate'] = (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8) / $ThisFileInfo['playtime_seconds']; - - // move the data chunk after all other chunks (if any) - // so that the RIFF parser doesn't see EOF when trying - // to skip over the data chunk - $RIFFdata = substr($RIFFdata, 0, 36).substr($RIFFdata, 44).substr($RIFFdata, 36, 8); - getid3_riff::ParseRIFFdata($RIFFdata, $ThisFileInfo); - - return true; - } - - - function OptimFROGsampleTypeLookup($SampleType) { - static $OptimFROGsampleTypeLookup = array( - 0 => 'unsigned int (8-bit)', - 1 => 'signed int (8-bit)', - 2 => 'unsigned int (16-bit)', - 3 => 'signed int (16-bit)', - 4 => 'unsigned int (24-bit)', - 5 => 'signed int (24-bit)', - 6 => 'unsigned int (32-bit)', - 7 => 'signed int (32-bit)', - 8 => 'float 0.24 (32-bit)', - 9 => 'float 16.8 (32-bit)', - 10 => 'float 24.0 (32-bit)' - ); - return (isset($OptimFROGsampleTypeLookup[$SampleType]) ? $OptimFROGsampleTypeLookup[$SampleType] : false); - } - - function OptimFROGbitsPerSampleTypeLookup($SampleType) { - static $OptimFROGbitsPerSampleTypeLookup = array( - 0 => 8, - 1 => 8, - 2 => 16, - 3 => 16, - 4 => 24, - 5 => 24, - 6 => 32, - 7 => 32, - 8 => 32, - 9 => 32, - 10 => 32 - ); - return (isset($OptimFROGbitsPerSampleTypeLookup[$SampleType]) ? $OptimFROGbitsPerSampleTypeLookup[$SampleType] : false); - } - - function OptimFROGchannelConfigurationLookup($ChannelConfiguration) { - static $OptimFROGchannelConfigurationLookup = array( - 0 => 'mono', - 1 => 'stereo' - ); - return (isset($OptimFROGchannelConfigurationLookup[$ChannelConfiguration]) ? $OptimFROGchannelConfigurationLookup[$ChannelConfiguration] : false); - } - - function OptimFROGchannelConfigNumChannelsLookup($ChannelConfiguration) { - static $OptimFROGchannelConfigNumChannelsLookup = array( - 0 => 1, - 1 => 2 - ); - return (isset($OptimFROGchannelConfigNumChannelsLookup[$ChannelConfiguration]) ? $OptimFROGchannelConfigNumChannelsLookup[$ChannelConfiguration] : false); - } - - - - // function OptimFROGalgorithmNameLookup($AlgorithID) { - // static $OptimFROGalgorithmNameLookup = array(); - // return (isset($OptimFROGalgorithmNameLookup[$AlgorithID]) ? $OptimFROGalgorithmNameLookup[$AlgorithID] : false); - // } - - - function OptimFROGencoderNameLookup($EncoderID) { - // version = (encoderID >> 4) + 4500 - // system = encoderID & 0xF - - $EncoderVersion = number_format(((($EncoderID & 0xF0) >> 4) + 4500) / 1000, 3); - $EncoderSystemID = ($EncoderID & 0x0F); - - static $OptimFROGencoderSystemLookup = array( - 0x00 => 'Windows console', - 0x01 => 'Linux console', - 0x0F => 'unknown' - ); - return $EncoderVersion.' ('.(isset($OptimFROGencoderSystemLookup[$EncoderSystemID]) ? $OptimFROGencoderSystemLookup[$EncoderSystemID] : 'undefined encoder type (0x'.dechex($EncoderSystemID).')').')'; - } - - function OptimFROGcompressionLookup($CompressionID) { - // mode = compression >> 3 - // speedup = compression & 0x07 - - $CompressionModeID = ($CompressionID & 0xF8) >> 3; - //$CompressionSpeedupID = ($CompressionID & 0x07); - - static $OptimFROGencoderModeLookup = array( - 0x00 => 'fast', - 0x01 => 'normal', - 0x02 => 'high', - 0x03 => 'extra', // extranew (some versions) - 0x04 => 'best', // bestnew (some versions) - 0x05 => 'ultra', - 0x06 => 'insane', - 0x07 => 'highnew', - 0x08 => 'extranew', - 0x09 => 'bestnew' - ); - return (isset($OptimFROGencoderModeLookup[$CompressionModeID]) ? $OptimFROGencoderModeLookup[$CompressionModeID] : 'undefined mode (0x'.str_pad(dechex($CompressionModeID), 2, '0', STR_PAD_LEFT).')'); - } - - function OptimFROGspeedupLookup($CompressionID) { - // mode = compression >> 3 - // speedup = compression & 0x07 - - //$CompressionModeID = ($CompressionID & 0xF8) >> 3; - $CompressionSpeedupID = ($CompressionID & 0x07); - - static $OptimFROGencoderSpeedupLookup = array( - 0x00 => '1x', - 0x01 => '2x', - 0x02 => '4x' - ); - - return (isset($OptimFROGencoderSpeedupLookup[$CompressionSpeedupID]) ? $OptimFROGencoderSpeedupLookup[$CompressionSpeedupID] : 'undefined mode (0x'.dechex($CompressionSpeedupID)); - } - -} - - -?>
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