<?php

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/////////////////////////////////////////////////////////////////

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/// getID3() by James Heinrich <info@getid3.org> //

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// available at https://github.com/JamesHeinrich/getID3 //

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// or https://www.getid3.org //

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// or http://getid3.sourceforge.net //

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// see readme.txt for more details //

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/////////////////////////////////////////////////////////////////

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// //

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// module.audio-video.flv.php //

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// module for analyzing Shockwave Flash Video files //

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// dependencies: NONE //

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// //

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/////////////////////////////////////////////////////////////////

[13] Fix | Delete

// //

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// FLV module by Seth Kaufman <sethØwhirl-i-gig*com> //

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// //

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// * version 0.1 (26 June 2005) //

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// //

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// * version 0.1.1 (15 July 2005) //

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// minor modifications by James Heinrich <info@getid3.org> //

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// //

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// * version 0.2 (22 February 2006) //

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// Support for On2 VP6 codec and meta information //

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// by Steve Webster <steve.websterØfeaturecreep*com> //

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// //

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// * version 0.3 (15 June 2006) //

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// Modified to not read entire file into memory //

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// by James Heinrich <info@getid3.org> //

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// //

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// * version 0.4 (07 December 2007) //

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// Bugfixes for incorrectly parsed FLV dimensions //

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// and incorrect parsing of onMetaTag //

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// by Evgeny Moysevich <moysevichØgmail*com> //

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// //

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// * version 0.5 (21 May 2009) //

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// Fixed parsing of audio tags and added additional codec //

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// details. The duration is now read from onMetaTag (if //

[37] Fix | Delete

// exists), rather than parsing whole file //

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// by Nigel Barnes <ngbarnesØhotmail*com> //

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// //

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// * version 0.6 (24 May 2009) //

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// Better parsing of files with h264 video //

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// by Evgeny Moysevich <moysevichØgmail*com> //

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// //

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// * version 0.6.1 (30 May 2011) //

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// prevent infinite loops in expGolombUe() //

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// //

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// * version 0.7.0 (16 Jul 2013) //

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// handle GETID3_FLV_VIDEO_VP6FLV_ALPHA //

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// improved AVCSequenceParameterSetReader::readData() //

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// by Xander Schouwerwou <schouwerwouØgmail*com> //

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// ///

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/////////////////////////////////////////////////////////////////

[53] Fix | Delete

[54] Fix | Delete

if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers

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exit;

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}

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define('GETID3_FLV_TAG_AUDIO', 8);

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define('GETID3_FLV_TAG_VIDEO', 9);

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define('GETID3_FLV_TAG_META', 18);

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define('GETID3_FLV_VIDEO_H263', 2);

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define('GETID3_FLV_VIDEO_SCREEN', 3);

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define('GETID3_FLV_VIDEO_VP6FLV', 4);

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define('GETID3_FLV_VIDEO_VP6FLV_ALPHA', 5);

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define('GETID3_FLV_VIDEO_SCREENV2', 6);

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define('GETID3_FLV_VIDEO_H264', 7);

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define('H264_AVC_SEQUENCE_HEADER', 0);

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define('H264_PROFILE_BASELINE', 66);

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define('H264_PROFILE_MAIN', 77);

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define('H264_PROFILE_EXTENDED', 88);

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define('H264_PROFILE_HIGH', 100);

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define('H264_PROFILE_HIGH10', 110);

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define('H264_PROFILE_HIGH422', 122);

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define('H264_PROFILE_HIGH444', 144);

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define('H264_PROFILE_HIGH444_PREDICTIVE', 244);

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class getid3_flv extends getid3_handler

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{

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const magic = 'FLV';

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/**

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* Break out of the loop if too many frames have been scanned; only scan this

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* many if meta frame does not contain useful duration.

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*

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* @var int

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*/

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public $max_frames = 100000;

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/**

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* @return bool

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*/

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public function Analyze() {

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$info = &$this->getid3->info;

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$this->fseek($info['avdataoffset']);

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$FLVdataLength = $info['avdataend'] - $info['avdataoffset'];

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$FLVheader = $this->fread(5);

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$info['fileformat'] = 'flv';

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$info['flv']['header']['signature'] = substr($FLVheader, 0, 3);

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$info['flv']['header']['version'] = getid3_lib::BigEndian2Int(substr($FLVheader, 3, 1));

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$TypeFlags = getid3_lib::BigEndian2Int(substr($FLVheader, 4, 1));

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if ($info['flv']['header']['signature'] != self::magic) {

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$this->error('Expecting "'.getid3_lib::PrintHexBytes(self::magic).'" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes($info['flv']['header']['signature']).'"');

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unset($info['flv'], $info['fileformat']);

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return false;

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}

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$info['flv']['header']['hasAudio'] = (bool) ($TypeFlags & 0x04);

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$info['flv']['header']['hasVideo'] = (bool) ($TypeFlags & 0x01);

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$FrameSizeDataLength = getid3_lib::BigEndian2Int($this->fread(4));

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$FLVheaderFrameLength = 9;

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if ($FrameSizeDataLength > $FLVheaderFrameLength) {

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$this->fseek($FrameSizeDataLength - $FLVheaderFrameLength, SEEK_CUR);

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}

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$Duration = 0;

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$found_video = false;

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$found_audio = false;

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$found_meta = false;

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$found_valid_meta_playtime = false;

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$tagParseCount = 0;

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$info['flv']['framecount'] = array('total'=>0, 'audio'=>0, 'video'=>0);

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$flv_framecount = &$info['flv']['framecount'];

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while ((($this->ftell() + 16) < $info['avdataend']) && (($tagParseCount++ <= $this->max_frames) || !$found_valid_meta_playtime)) {

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$ThisTagHeader = $this->fread(16);

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$PreviousTagLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 0, 4));

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$TagType = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 4, 1));

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$DataLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 5, 3));

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$Timestamp = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 8, 3));

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$LastHeaderByte = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 15, 1));

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$NextOffset = $this->ftell() - 1 + $DataLength;

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if ($Timestamp > $Duration) {

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$Duration = $Timestamp;

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}

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$flv_framecount['total']++;

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switch ($TagType) {

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case GETID3_FLV_TAG_AUDIO:

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$flv_framecount['audio']++;

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if (!$found_audio) {

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$found_audio = true;

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$info['flv']['audio']['audioFormat'] = ($LastHeaderByte >> 4) & 0x0F;

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$info['flv']['audio']['audioRate'] = ($LastHeaderByte >> 2) & 0x03;

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$info['flv']['audio']['audioSampleSize'] = ($LastHeaderByte >> 1) & 0x01;

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$info['flv']['audio']['audioType'] = $LastHeaderByte & 0x01;

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}

[153] Fix | Delete

break;

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[155] Fix | Delete

case GETID3_FLV_TAG_VIDEO:

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$flv_framecount['video']++;

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if (!$found_video) {

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$found_video = true;

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$info['flv']['video']['videoCodec'] = $LastHeaderByte & 0x07;

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[161] Fix | Delete

$FLVvideoHeader = $this->fread(11);

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if ($info['flv']['video']['videoCodec'] == GETID3_FLV_VIDEO_H264) {

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// this code block contributed by: moysevichØgmail*com

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$AVCPacketType = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 0, 1));

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if ($AVCPacketType == H264_AVC_SEQUENCE_HEADER) {

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// read AVCDecoderConfigurationRecord

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$configurationVersion = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 1));

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$AVCProfileIndication = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 1));

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$profile_compatibility = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 1));

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$lengthSizeMinusOne = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 7, 1));

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$numOfSequenceParameterSets = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 8, 1));

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[175] Fix | Delete

if (($numOfSequenceParameterSets & 0x1F) != 0) {

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// there is at least one SequenceParameterSet

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// read size of the first SequenceParameterSet

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//$spsSize = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 9, 2));

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$spsSize = getid3_lib::LittleEndian2Int(substr($FLVvideoHeader, 9, 2));

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// read the first SequenceParameterSet

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$sps = $this->fread($spsSize);

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if (strlen($sps) == $spsSize) { // make sure that whole SequenceParameterSet was red

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$spsReader = new AVCSequenceParameterSetReader($sps);

[184] Fix | Delete

$spsReader->readData();

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$info['video']['resolution_x'] = $spsReader->getWidth();

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$info['video']['resolution_y'] = $spsReader->getHeight();

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}

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}

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}

[190] Fix | Delete

// end: moysevichØgmail*com

[191] Fix | Delete

[192] Fix | Delete

} elseif ($info['flv']['video']['videoCodec'] == GETID3_FLV_VIDEO_H263) {

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$PictureSizeType = (getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 3, 2))) >> 7;

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$PictureSizeType = $PictureSizeType & 0x0007;

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$info['flv']['header']['videoSizeType'] = $PictureSizeType;

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switch ($PictureSizeType) {

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case 0:

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//$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2));

[200] Fix | Delete

//$PictureSizeEnc <<= 1;

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//$info['video']['resolution_x'] = ($PictureSizeEnc & 0xFF00) >> 8;

[202] Fix | Delete

//$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2));

[203] Fix | Delete

//$PictureSizeEnc <<= 1;

[204] Fix | Delete

//$info['video']['resolution_y'] = ($PictureSizeEnc & 0xFF00) >> 8;

[205] Fix | Delete

[206] Fix | Delete

$PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 2)) >> 7;

[207] Fix | Delete

$PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2)) >> 7;

[208] Fix | Delete

$info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xFF;

[209] Fix | Delete

$info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xFF;

[210] Fix | Delete

break;

[211] Fix | Delete

[212] Fix | Delete

case 1:

[213] Fix | Delete

$PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 3)) >> 7;

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$PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 3)) >> 7;

[215] Fix | Delete

$info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xFFFF;

[216] Fix | Delete

$info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xFFFF;

[217] Fix | Delete

break;

[218] Fix | Delete

[219] Fix | Delete

case 2:

[220] Fix | Delete

$info['video']['resolution_x'] = 352;

[221] Fix | Delete

$info['video']['resolution_y'] = 288;

[222] Fix | Delete

break;

[223] Fix | Delete

[224] Fix | Delete

case 3:

[225] Fix | Delete

$info['video']['resolution_x'] = 176;

[226] Fix | Delete

$info['video']['resolution_y'] = 144;

[227] Fix | Delete

break;

[228] Fix | Delete

[229] Fix | Delete

case 4:

[230] Fix | Delete

$info['video']['resolution_x'] = 128;

[231] Fix | Delete

$info['video']['resolution_y'] = 96;

[232] Fix | Delete

break;

[233] Fix | Delete

[234] Fix | Delete

case 5:

[235] Fix | Delete

$info['video']['resolution_x'] = 320;

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$info['video']['resolution_y'] = 240;

[237] Fix | Delete

break;

[238] Fix | Delete

[239] Fix | Delete

case 6:

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$info['video']['resolution_x'] = 160;

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$info['video']['resolution_y'] = 120;

[242] Fix | Delete

break;

[243] Fix | Delete

[244] Fix | Delete

default:

[245] Fix | Delete

$info['video']['resolution_x'] = 0;

[246] Fix | Delete

$info['video']['resolution_y'] = 0;

[247] Fix | Delete

break;

[248] Fix | Delete

[249] Fix | Delete

}

[250] Fix | Delete

[251] Fix | Delete

} elseif ($info['flv']['video']['videoCodec'] == GETID3_FLV_VIDEO_VP6FLV_ALPHA) {

[252] Fix | Delete

[253] Fix | Delete

/* contributed by schouwerwouØgmail*com */

[254] Fix | Delete

if (!isset($info['video']['resolution_x'])) { // only when meta data isn't set

[255] Fix | Delete

$PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2));

[256] Fix | Delete

$PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 7, 2));

[257] Fix | Delete

$info['video']['resolution_x'] = ($PictureSizeEnc['x'] & 0xFF) << 3;

[258] Fix | Delete

$info['video']['resolution_y'] = ($PictureSizeEnc['y'] & 0xFF) << 3;

[259] Fix | Delete

}

[260] Fix | Delete

/* end schouwerwouØgmail*com */

[261] Fix | Delete

[262] Fix | Delete

}

[263] Fix | Delete

if (!empty($info['video']['resolution_x']) && !empty($info['video']['resolution_y'])) {

[264] Fix | Delete

$info['video']['pixel_aspect_ratio'] = $info['video']['resolution_x'] / $info['video']['resolution_y'];

[265] Fix | Delete

}

[266] Fix | Delete

}

[267] Fix | Delete

break;

[268] Fix | Delete

[269] Fix | Delete

// Meta tag

[270] Fix | Delete

case GETID3_FLV_TAG_META:

[271] Fix | Delete

if (!$found_meta) {

[272] Fix | Delete

$found_meta = true;

[273] Fix | Delete

$this->fseek(-1, SEEK_CUR);

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$datachunk = $this->fread($DataLength);

[275] Fix | Delete

$AMFstream = new AMFStream($datachunk);

[276] Fix | Delete

$reader = new AMFReader($AMFstream);

[277] Fix | Delete

$eventName = $reader->readData();

[278] Fix | Delete

$info['flv']['meta'][$eventName] = $reader->readData();

[279] Fix | Delete

unset($reader);

[280] Fix | Delete

[281] Fix | Delete

$copykeys = array('framerate'=>'frame_rate', 'width'=>'resolution_x', 'height'=>'resolution_y', 'audiodatarate'=>'bitrate', 'videodatarate'=>'bitrate');

[282] Fix | Delete

foreach ($copykeys as $sourcekey => $destkey) {

[283] Fix | Delete

if (isset($info['flv']['meta']['onMetaData'][$sourcekey])) {

[284] Fix | Delete

switch ($sourcekey) {

[285] Fix | Delete

case 'width':

[286] Fix | Delete

case 'height':

[287] Fix | Delete

$info['video'][$destkey] = intval(round($info['flv']['meta']['onMetaData'][$sourcekey]));

[288] Fix | Delete

break;

[289] Fix | Delete

case 'audiodatarate':

[290] Fix | Delete

$info['audio'][$destkey] = getid3_lib::CastAsInt(round($info['flv']['meta']['onMetaData'][$sourcekey] * 1000));

[291] Fix | Delete

break;

[292] Fix | Delete

case 'videodatarate':

[293] Fix | Delete

case 'frame_rate':

[294] Fix | Delete

default:

[295] Fix | Delete

$info['video'][$destkey] = $info['flv']['meta']['onMetaData'][$sourcekey];

[296] Fix | Delete

break;

[297] Fix | Delete

}

[298] Fix | Delete

}

[299] Fix | Delete

}

[300] Fix | Delete

if (!empty($info['flv']['meta']['onMetaData']['duration'])) {

[301] Fix | Delete

$found_valid_meta_playtime = true;

[302] Fix | Delete

}

[303] Fix | Delete

}

[304] Fix | Delete

break;

[305] Fix | Delete

[306] Fix | Delete

default:

[307] Fix | Delete

// noop

[308] Fix | Delete

break;

[309] Fix | Delete

}

[310] Fix | Delete

$this->fseek($NextOffset);

[311] Fix | Delete

}

[312] Fix | Delete

[313] Fix | Delete

$info['playtime_seconds'] = $Duration / 1000;

[314] Fix | Delete

if ($info['playtime_seconds'] > 0) {

[315] Fix | Delete

$info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];

[316] Fix | Delete

}

[317] Fix | Delete

[318] Fix | Delete

if ($info['flv']['header']['hasAudio']) {

[319] Fix | Delete

$info['audio']['codec'] = self::audioFormatLookup($info['flv']['audio']['audioFormat']);

[320] Fix | Delete

$info['audio']['sample_rate'] = self::audioRateLookup($info['flv']['audio']['audioRate']);

[321] Fix | Delete

$info['audio']['bits_per_sample'] = self::audioBitDepthLookup($info['flv']['audio']['audioSampleSize']);

[322] Fix | Delete

[323] Fix | Delete

$info['audio']['channels'] = $info['flv']['audio']['audioType'] + 1; // 0=mono,1=stereo

[324] Fix | Delete

$info['audio']['lossless'] = ($info['flv']['audio']['audioFormat'] ? false : true); // 0=uncompressed

[325] Fix | Delete

$info['audio']['dataformat'] = 'flv';

[326] Fix | Delete

}

[327] Fix | Delete

if (!empty($info['flv']['header']['hasVideo'])) {

[328] Fix | Delete

$info['video']['codec'] = self::videoCodecLookup($info['flv']['video']['videoCodec']);

[329] Fix | Delete

$info['video']['dataformat'] = 'flv';

[330] Fix | Delete

$info['video']['lossless'] = false;

[331] Fix | Delete

}

[332] Fix | Delete

[333] Fix | Delete

// Set information from meta

[334] Fix | Delete

if (!empty($info['flv']['meta']['onMetaData']['duration'])) {

[335] Fix | Delete

$info['playtime_seconds'] = $info['flv']['meta']['onMetaData']['duration'];

[336] Fix | Delete

$info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];

[337] Fix | Delete

}

[338] Fix | Delete

if (isset($info['flv']['meta']['onMetaData']['audiocodecid'])) {

[339] Fix | Delete

$info['audio']['codec'] = self::audioFormatLookup($info['flv']['meta']['onMetaData']['audiocodecid']);

[340] Fix | Delete

}

[341] Fix | Delete

if (isset($info['flv']['meta']['onMetaData']['videocodecid'])) {

[342] Fix | Delete

$info['video']['codec'] = self::videoCodecLookup($info['flv']['meta']['onMetaData']['videocodecid']);

[343] Fix | Delete

}

[344] Fix | Delete

return true;

[345] Fix | Delete

}

[346] Fix | Delete

[347] Fix | Delete

/**

[348] Fix | Delete

* @param int $id

[349] Fix | Delete

*

[350] Fix | Delete

* @return string|false

[351] Fix | Delete

*/

[352] Fix | Delete

public static function audioFormatLookup($id) {

[353] Fix | Delete

static $lookup = array(

[354] Fix | Delete

0 => 'Linear PCM, platform endian',

[355] Fix | Delete

1 => 'ADPCM',

[356] Fix | Delete

2 => 'mp3',

[357] Fix | Delete

3 => 'Linear PCM, little endian',

[358] Fix | Delete

4 => 'Nellymoser 16kHz mono',

[359] Fix | Delete

5 => 'Nellymoser 8kHz mono',

[360] Fix | Delete

6 => 'Nellymoser',

[361] Fix | Delete

7 => 'G.711A-law logarithmic PCM',

[362] Fix | Delete

8 => 'G.711 mu-law logarithmic PCM',

[363] Fix | Delete

9 => 'reserved',

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10 => 'AAC',

[365] Fix | Delete

11 => 'Speex',

[366] Fix | Delete

12 => false, // unknown?

[367] Fix | Delete

13 => false, // unknown?

[368] Fix | Delete

14 => 'mp3 8kHz',

[369] Fix | Delete

15 => 'Device-specific sound',

[370] Fix | Delete

);

[371] Fix | Delete

return (isset($lookup[$id]) ? $lookup[$id] : false);

[372] Fix | Delete

}

[373] Fix | Delete

[374] Fix | Delete

/**

[375] Fix | Delete

* @param int $id

[376] Fix | Delete

*

[377] Fix | Delete

* @return int|false

[378] Fix | Delete

*/

[379] Fix | Delete

public static function audioRateLookup($id) {

[380] Fix | Delete

static $lookup = array(

[381] Fix | Delete

0 => 5500,

[382] Fix | Delete

1 => 11025,

[383] Fix | Delete

2 => 22050,

[384] Fix | Delete

3 => 44100,

[385] Fix | Delete

);

[386] Fix | Delete

return (isset($lookup[$id]) ? $lookup[$id] : false);

[387] Fix | Delete

}

[388] Fix | Delete

[389] Fix | Delete

/**

[390] Fix | Delete

* @param int $id

[391] Fix | Delete

*

[392] Fix | Delete

* @return int|false

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*/

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public static function audioBitDepthLookup($id) {

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static $lookup = array(

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0 => 8,

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1 => 16,

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);

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return (isset($lookup[$id]) ? $lookup[$id] : false);

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}

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[402] Fix | Delete

/**

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* @param int $id

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*

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* @return string|false

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*/

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public static function videoCodecLookup($id) {

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static $lookup = array(

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GETID3_FLV_VIDEO_H263 => 'Sorenson H.263',

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GETID3_FLV_VIDEO_SCREEN => 'Screen video',

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GETID3_FLV_VIDEO_VP6FLV => 'On2 VP6',

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GETID3_FLV_VIDEO_VP6FLV_ALPHA => 'On2 VP6 with alpha channel',

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GETID3_FLV_VIDEO_SCREENV2 => 'Screen video v2',

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GETID3_FLV_VIDEO_H264 => 'Sorenson H.264',

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);

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return (isset($lookup[$id]) ? $lookup[$id] : false);

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}

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}

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[420] Fix | Delete

class AMFStream

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{

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/**

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* @var string

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*/

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public $bytes;

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[427] Fix | Delete

/**

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* @var int

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*/

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public $pos;

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/**

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* @param string $bytes

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*/

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public function __construct(&$bytes) {

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$this->bytes =& $bytes;

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$this->pos = 0;

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}

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[440] Fix | Delete

/**

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* @return int

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*/

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public function readByte() { // 8-bit

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return ord(substr($this->bytes, $this->pos++, 1));

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}

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[447] Fix | Delete

/**

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* @return int

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*/

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public function readInt() { // 16-bit

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return ($this->readByte() << 8) + $this->readByte();

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}

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[454] Fix | Delete

/**

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* @return int

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*/

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public function readLong() { // 32-bit

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return ($this->readByte() << 24) + ($this->readByte() << 16) + ($this->readByte() << 8) + $this->readByte();

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}

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[461] Fix | Delete

/**

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* @return float|false

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*/

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public function readDouble() {

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return getid3_lib::BigEndian2Float($this->read(8));

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}

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[468] Fix | Delete

/**

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* @return string

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*/

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public function readUTF() {

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$length = $this->readInt();

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return $this->read($length);

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}

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[476] Fix | Delete

/**

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* @return string

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*/

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public function readLongUTF() {

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$length = $this->readLong();

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return $this->read($length);

[482] Fix | Delete

}

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[484] Fix | Delete

/**

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* @param int $length

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*

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* @return string

[488] Fix | Delete

*/

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public function read($length) {

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$val = substr($this->bytes, $this->pos, $length);

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$this->pos += $length;

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return $val;

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}

[494] Fix | Delete

[495] Fix | Delete

/**

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* @return int

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*/

[498] Fix | Delete

public function peekByte() {

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