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authorKarl 'vollmerk' Vollmer <vollmer@ampache.org>2006-01-02 01:06:06 +0000
committerKarl 'vollmerk' Vollmer <vollmer@ampache.org>2006-01-02 01:06:06 +0000
commit83f3c4114164617f48f3b013027f9079ddc2675c (patch)
tree3fc5ba313a14992eb3683e2a2e46c095fc7a8f7f /modules/id3/getid3/module.audio-video.flv.php
parent5c2efb82b74874e5f7220cb1a00479c009d9221b (diff)
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updated registration mojo thx pb1dft also some fluf updates
Diffstat (limited to 'modules/id3/getid3/module.audio-video.flv.php')
-rw-r--r--modules/id3/getid3/module.audio-video.flv.php210
1 files changed, 210 insertions, 0 deletions
diff --git a/modules/id3/getid3/module.audio-video.flv.php b/modules/id3/getid3/module.audio-video.flv.php
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@@ -0,0 +1,210 @@
+<?php
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org> //
+// available at http://getid3.sourceforge.net //
+// or http://www.getid3.org //
+// //
+// FLV module by Seth Kaufman <seth@whirl-i-gig.com> //
+// * version 0.1 (26 June 2005) //
+// minor modifications by James Heinrich <info@getid3.org> //
+// * version 0.1.1 (15 July 2005) //
+/////////////////////////////////////////////////////////////////
+// //
+// module.audio-video.flv.php //
+// module for analyzing Shockwave Flash Video files //
+// dependencies: NONE //
+// ///
+/////////////////////////////////////////////////////////////////
+
+
+class getid3_flv
+{
+
+ function getid3_flv(&$fd, &$ThisFileInfo, $ReturnAllTagData=false) {
+ fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
+
+ $FLVfileData = fread($fd, $ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']);
+
+ $FLVmagic = substr($FLVfileData, 0, 3);
+ if ($FLVmagic != 'FLV') {
+ $ThisFileInfo['error'][] = 'Expecting "FLV" at offset '.$ThisFileInfo['avdataoffset'].', found "'.$ThisFileInfo['flv']['header']['signature'].'"';
+ unset($ThisFileInfo['flv']);
+ unset($ThisFileInfo['fileformat']);
+ return false;
+ }
+ $ThisFileInfo['flv']['header']['signature'] = $FLVmagic;
+ $ThisFileInfo['flv']['header']['version'] = ord($FLVfileData{3});
+ $ThisFileInfo['fileformat'] = 'flv';
+
+ $TypeFlags = ord($FLVfileData{4});
+ $ThisFileInfo['flv']['header']['hasAudio'] = (bool) ($TypeFlags & 4);
+ $ThisFileInfo['flv']['header']['hasVideo'] = (bool) ($TypeFlags & 1);
+
+ $FrameSizeDataLength = getid3_lib::BigEndian2Int(substr($FLVfileData, 5, 4));
+
+ // FLV tags
+ $CurrentOffset = $FrameSizeDataLength;
+ $FLVdataLength = strlen($FLVfileData);
+
+ $Duration = 0;
+
+ $SoundFormat = null;
+ $VideoFormat = null;
+ while ($CurrentOffset < $FLVdataLength) {
+ // previous tag size
+ $PreviousTagLength = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset, 4));
+ $CurrentOffset += 4;
+
+ $TagType = ord(substr($FLVfileData, $CurrentOffset, 1));
+ $DataLength = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 1, 3));
+ $Timestamp = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 4, 3));
+
+ switch ($TagType) {
+ case 8:
+ if (is_null($SoundFormat)) {
+ $SoundInfo = ord(substr($FLVfileData, $CurrentOffset + 11, 1));
+ $SoundFormat = $SoundInfo & 0x07;
+ $ThisFileInfo['flv']['audio']['audioFormat'] = $SoundFormat;
+ $ThisFileInfo['flv']['audio']['audioRate'] = ($SoundInfo & 0x30) / 0x10;
+ $ThisFileInfo['flv']['audio']['audioSampleSize'] = ($SoundInfo & 0x40) / 0x40;
+ $ThisFileInfo['flv']['audio']['audioType'] = ($SoundInfo & 0x80) / 0x80;
+ }
+ break;
+
+ case 9:
+ if (is_null($VideoFormat)) {
+ $VideoInfo = ord(substr($FLVfileData, $CurrentOffset + 11, 1));
+ $VideoFormat = $VideoInfo & 0x07;
+ $ThisFileInfo['flv']['video']['videoCodec'] = $VideoFormat;
+
+ $PictureSizeType = (getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 15, 2))) >> 7;
+ $PictureSizeType = $PictureSizeType & 0x0007;
+ $ThisFileInfo['flv']['header']['videoSizeType'] = $PictureSizeType;
+ switch ($PictureSizeType) {
+ case 0:
+ $PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 16, 2));
+ $PictureSizeEnc <<= 1;
+ $ThisFileInfo['video']['resolution_x'] = ($PictureSizeEnc & 0xFF00) >> 8;
+ $PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 17, 2));
+ $PictureSizeEnc <<= 1;
+ $ThisFileInfo['video']['resolution_y'] = ($PictureSizeEnc & 0xFF00) >> 8;
+ break;
+
+ case 1:
+ $PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 16, 4));
+ $PictureSizeEnc <<= 1;
+ $ThisFileInfo['video']['resolution_x'] = ($PictureSizeEnc & 0xFFFF0000) >> 16;
+
+ $PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVfileData, $CurrentOffset + 18, 4));
+ $PictureSizeEnc <<= 1;
+ $ThisFileInfo['video']['resolution_y'] = ($PictureSizeEnc & 0xFFFF0000) >> 16;
+ break;
+
+ case 2:
+ $ThisFileInfo['video']['resolution_x'] = 352;
+ $ThisFileInfo['video']['resolution_y'] = 288;
+ break;
+
+ case 3:
+ $ThisFileInfo['video']['resolution_x'] = 176;
+ $ThisFileInfo['video']['resolution_y'] = 144;
+ break;
+
+ case 4:
+ $ThisFileInfo['video']['resolution_x'] = 128;
+ $ThisFileInfo['video']['resolution_y'] = 96;
+ break;
+
+ case 5:
+ $ThisFileInfo['video']['resolution_x'] = 320;
+ $ThisFileInfo['video']['resolution_y'] = 240;
+ break;
+
+ case 6:
+ $ThisFileInfo['video']['resolution_x'] = 160;
+ $ThisFileInfo['video']['resolution_y'] = 120;
+ break;
+
+ default:
+ $ThisFileInfo['video']['resolution_x'] = 0;
+ $ThisFileInfo['video']['resolution_y'] = 0;
+ break;
+
+ }
+ }
+ break;
+
+ default:
+ // noop
+ break;
+ }
+
+ if ($Timestamp > $Duration) {
+ $Duration = $Timestamp;
+ }
+
+ $CurrentOffset += ($DataLength + 11);
+ }
+
+ $ThisFileInfo['playtime_seconds'] = $Duration / 1000;
+ $ThisFileInfo['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'];
+
+ if ($ThisFileInfo['flv']['header']['hasAudio']) {
+ $ThisFileInfo['audio']['codec'] = $this->FLVaudioFormat($ThisFileInfo['flv']['audio']['audioFormat']);
+ $ThisFileInfo['audio']['sample_rate'] = $this->FLVaudioRate($ThisFileInfo['flv']['audio']['audioRate']);
+ $ThisFileInfo['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($ThisFileInfo['flv']['audio']['audioSampleSize']);
+
+ $ThisFileInfo['audio']['channels'] = $ThisFileInfo['flv']['audio']['audioType'] + 1; // 0=mono,1=stereo
+ $ThisFileInfo['audio']['lossless'] = ($ThisFileInfo['flv']['audio']['audioFormat'] ? false : true); // 0=uncompressed
+ $ThisFileInfo['audio']['dataformat'] = 'flv';
+ }
+ if (@$ThisFileInfo['flv']['header']['hasVideo']) {
+ $ThisFileInfo['video']['codec'] = $this->FLVvideoCodec($ThisFileInfo['flv']['video']['videoCodec']);
+ $ThisFileInfo['video']['dataformat'] = 'flv';
+ $ThisFileInfo['video']['lossless'] = false;
+ }
+
+ return true;
+ }
+
+
+ function FLVaudioFormat($id) {
+ $FLVaudioFormat = array(
+ 0 => 'uncompressed',
+ 1 => 'ADPCM',
+ 2 => 'mp3',
+ 5 => 'Nellymoser 8kHz mono',
+ 6 => 'Nellymoser',
+ );
+ return (@$FLVaudioFormat[$id] ? @$FLVaudioFormat[$id] : false);
+ }
+
+ function FLVaudioRate($id) {
+ $FLVaudioRate = array(
+ 0 => 5500,
+ 1 => 11025,
+ 2 => 22050,
+ 3 => 44100,
+ );
+ return (@$FLVaudioRate[$id] ? @$FLVaudioRate[$id] : false);
+ }
+
+ function FLVaudioBitDepth($id) {
+ $FLVaudioBitDepth = array(
+ 0 => 8,
+ 1 => 16,
+ );
+ return (@$FLVaudioBitDepth[$id] ? @$FLVaudioBitDepth[$id] : false);
+ }
+
+ function FLVvideoCodec($id) {
+ $FLVaudioBitDepth = array(
+ 2 => 'Sorenson H.263',
+ 3 => 'Screen video',
+ );
+ return (@$FLVaudioBitDepth[$id] ? @$FLVaudioBitDepth[$id] : false);
+ }
+
+}
+
+?> \ No newline at end of file