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<?php
/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich <info@getid3.org>               //
//  available at https://github.com/JamesHeinrich/getID3       //
//            or https://www.getid3.org                        //
//            or http://getid3.sourceforge.net                 //
//  see readme.txt for more details                            //
/////////////////////////////////////////////////////////////////
//                                                             //
// module.audio-video.flv.php                                  //
// module for analyzing Shockwave Flash Video files            //
// dependencies: NONE                                          //
//                                                             //
/////////////////////////////////////////////////////////////////
//                                                             //
//  FLV module by Seth Kaufman <sethØwhirl-i-gig*com>          //
//                                                             //
//  * version 0.1 (26 June 2005)                               //
//                                                             //
//  * version 0.1.1 (15 July 2005)                             //
//  minor modifications by James Heinrich <info@getid3.org>    //
//                                                             //
//  * version 0.2 (22 February 2006)                           //
//  Support for On2 VP6 codec and meta information             //
//    by Steve Webster <steve.websterØfeaturecreep*com>        //
//                                                             //
//  * version 0.3 (15 June 2006)                               //
//  Modified to not read entire file into memory               //
//    by James Heinrich <info@getid3.org>                      //
//                                                             //
//  * version 0.4 (07 December 2007)                           //
//  Bugfixes for incorrectly parsed FLV dimensions             //
//    and incorrect parsing of onMetaTag                       //
//    by Evgeny Moysevich <moysevichØgmail*com>                //
//                                                             //
//  * version 0.5 (21 May 2009)                                //
//  Fixed parsing of audio tags and added additional codec     //
//    details. The duration is now read from onMetaTag (if     //
//    exists), rather than parsing whole file                  //
//    by Nigel Barnes <ngbarnesØhotmail*com>                   //
//                                                             //
//  * version 0.6 (24 May 2009)                                //
//  Better parsing of files with h264 video                    //
//    by Evgeny Moysevich <moysevichØgmail*com>                //
//                                                             //
//  * version 0.6.1 (30 May 2011)                              //
//    prevent infinite loops in expGolombUe()                  //
//                                                             //
//  * version 0.7.0 (16 Jul 2013)                              //
//  handle GETID3_FLV_VIDEO_VP6FLV_ALPHA                       //
//  improved AVCSequenceParameterSetReader::readData()         //
//    by Xander Schouwerwou <schouwerwouØgmail*com>            //
//                                                            ///
/////////////////////////////////////////////////////////////////

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

define('GETID3_FLV_TAG_AUDIO',          8);
define('GETID3_FLV_TAG_VIDEO',          9);
define('GETID3_FLV_TAG_META',          18);

define('GETID3_FLV_VIDEO_H263',         2);
define('GETID3_FLV_VIDEO_SCREEN',       3);
define('GETID3_FLV_VIDEO_VP6FLV',       4);
define('GETID3_FLV_VIDEO_VP6FLV_ALPHA', 5);
define('GETID3_FLV_VIDEO_SCREENV2',     6);
define('GETID3_FLV_VIDEO_H264',         7);

define('H264_AVC_SEQUENCE_HEADER',          0);
define('H264_PROFILE_BASELINE',            66);
define('H264_PROFILE_MAIN',                77);
define('H264_PROFILE_EXTENDED',            88);
define('H264_PROFILE_HIGH',               100);
define('H264_PROFILE_HIGH10',             110);
define('H264_PROFILE_HIGH422',            122);
define('H264_PROFILE_HIGH444',            144);
define('H264_PROFILE_HIGH444_PREDICTIVE', 244);

class getid3_flv extends getid3_handler
{
	const magic = 'FLV';

	/**
	 * Break out of the loop if too many frames have been scanned; only scan this
	 * many if meta frame does not contain useful duration.
	 *
	 * @var int
	 */
	public $max_frames = 100000;

	/**
	 * @return bool
	 */
	public function Analyze() {
		$info = &$this->getid3->info;

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

		$FLVdataLength = $info['avdataend'] - $info['avdataoffset'];
		$FLVheader = $this->fread(5);

		$info['fileformat'] = 'flv';
		$info['flv']['header']['signature'] =                           substr($FLVheader, 0, 3);
		$info['flv']['header']['version']   = getid3_lib::BigEndian2Int(substr($FLVheader, 3, 1));
		$TypeFlags                          = getid3_lib::BigEndian2Int(substr($FLVheader, 4, 1));

		if ($info['flv']['header']['signature'] != self::magic) {
			$this->error('Expecting "'.getid3_lib::PrintHexBytes(self::magic).'" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes($info['flv']['header']['signature']).'"');
			unset($info['flv'], $info['fileformat']);
			return false;
		}

		$info['flv']['header']['hasAudio'] = (bool) ($TypeFlags & 0x04);
		$info['flv']['header']['hasVideo'] = (bool) ($TypeFlags & 0x01);

		$FrameSizeDataLength = getid3_lib::BigEndian2Int($this->fread(4));
		$FLVheaderFrameLength = 9;
		if ($FrameSizeDataLength > $FLVheaderFrameLength) {
			$this->fseek($FrameSizeDataLength - $FLVheaderFrameLength, SEEK_CUR);
		}
		$Duration = 0;
		$found_video = false;
		$found_audio = false;
		$found_meta  = false;
		$found_valid_meta_playtime = false;
		$tagParseCount = 0;
		$info['flv']['framecount'] = array('total'=>0, 'audio'=>0, 'video'=>0);
		$flv_framecount = &$info['flv']['framecount'];
		while ((($this->ftell() + 16) < $info['avdataend']) && (($tagParseCount++ <= $this->max_frames) || !$found_valid_meta_playtime))  {
			$ThisTagHeader = $this->fread(16);

			$PreviousTagLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader,  0, 4));
			$TagType           = getid3_lib::BigEndian2Int(substr($ThisTagHeader,  4, 1));
			$DataLength        = getid3_lib::BigEndian2Int(substr($ThisTagHeader,  5, 3));
			$Timestamp         = getid3_lib::BigEndian2Int(substr($ThisTagHeader,  8, 3));
			$LastHeaderByte    = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 15, 1));
			$NextOffset = $this->ftell() - 1 + $DataLength;
			if ($Timestamp > $Duration) {
				$Duration = $Timestamp;
			}

			$flv_framecount['total']++;
			switch ($TagType) {
				case GETID3_FLV_TAG_AUDIO:
					$flv_framecount['audio']++;
					if (!$found_audio) {
						$found_audio = true;
						$info['flv']['audio']['audioFormat']     = ($LastHeaderByte >> 4) & 0x0F;
						$info['flv']['audio']['audioRate']       = ($LastHeaderByte >> 2) & 0x03;
						$info['flv']['audio']['audioSampleSize'] = ($LastHeaderByte >> 1) & 0x01;
						$info['flv']['audio']['audioType']       =  $LastHeaderByte       & 0x01;
					}
					break;

				case GETID3_FLV_TAG_VIDEO:
					$flv_framecount['video']++;
					if (!$found_video) {
						$found_video = true;
						$info['flv']['video']['videoCodec'] = $LastHeaderByte & 0x07;

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

						if ($info['flv']['video']['videoCodec'] == GETID3_FLV_VIDEO_H264) {
							// this code block contributed by: moysevichØgmail*com

							$AVCPacketType = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 0, 1));
							if ($AVCPacketType == H264_AVC_SEQUENCE_HEADER) {
								//	read AVCDecoderConfigurationRecord
								$configurationVersion       = getid3_lib::BigEndian2Int(substr($FLVvideoHeader,  4, 1));
								$AVCProfileIndication       = getid3_lib::BigEndian2Int(substr($FLVvideoHeader,  5, 1));
								$profile_compatibility      = getid3_lib::BigEndian2Int(substr($FLVvideoHeader,  6, 1));
								$lengthSizeMinusOne         = getid3_lib::BigEndian2Int(substr($FLVvideoHeader,  7, 1));
								$numOfSequenceParameterSets = getid3_lib::BigEndian2Int(substr($FLVvideoHeader,  8, 1));

								if (($numOfSequenceParameterSets & 0x1F) != 0) {
									//	there is at least one SequenceParameterSet
									//	read size of the first SequenceParameterSet
									//$spsSize = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 9, 2));
									$spsSize = getid3_lib::LittleEndian2Int(substr($FLVvideoHeader, 9, 2));
									//	read the first SequenceParameterSet
									$sps = $this->fread($spsSize);
									if (strlen($sps) == $spsSize) {	//	make sure that whole SequenceParameterSet was red
										$spsReader = new AVCSequenceParameterSetReader($sps);
										$spsReader->readData();
										$info['video']['resolution_x'] = $spsReader->getWidth();
										$info['video']['resolution_y'] = $spsReader->getHeight();
									}
								}
							}
							// end: moysevichØgmail*com

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

							$PictureSizeType = (getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 3, 2))) >> 7;
							$PictureSizeType = $PictureSizeType & 0x0007;
							$info['flv']['header']['videoSizeType'] = $PictureSizeType;
							switch ($PictureSizeType) {
								case 0:
									//$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2));
									//$PictureSizeEnc <<= 1;
									//$info['video']['resolution_x'] = ($PictureSizeEnc & 0xFF00) >> 8;
									//$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2));
									//$PictureSizeEnc <<= 1;
									//$info['video']['resolution_y'] = ($PictureSizeEnc & 0xFF00) >> 8;

									$PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 2)) >> 7;
									$PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2)) >> 7;
									$info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xFF;
									$info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xFF;
									break;

								case 1:
									$PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 3)) >> 7;
									$PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 3)) >> 7;
									$info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xFFFF;
									$info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xFFFF;
									break;

								case 2:
									$info['video']['resolution_x'] = 352;
									$info['video']['resolution_y'] = 288;
									break;

								case 3:
									$info['video']['resolution_x'] = 176;
									$info['video']['resolution_y'] = 144;
									break;

								case 4:
									$info['video']['resolution_x'] = 128;
									$info['video']['resolution_y'] = 96;
									break;

								case 5:
									$info['video']['resolution_x'] = 320;
									$info['video']['resolution_y'] = 240;
									break;

								case 6:
									$info['video']['resolution_x'] = 160;
									$info['video']['resolution_y'] = 120;
									break;

								default:
									$info['video']['resolution_x'] = 0;
									$info['video']['resolution_y'] = 0;
									break;

							}

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

							/* contributed by schouwerwouØgmail*com */
							if (!isset($info['video']['resolution_x'])) { // only when meta data isn't set
								$PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2));
								$PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 7, 2));
								$info['video']['resolution_x'] = ($PictureSizeEnc['x'] & 0xFF) << 3;
								$info['video']['resolution_y'] = ($PictureSizeEnc['y'] & 0xFF) << 3;
							}
							/* end schouwerwouØgmail*com */

						}
						if (!empty($info['video']['resolution_x']) && !empty($info['video']['resolution_y'])) {
							$info['video']['pixel_aspect_ratio'] = $info['video']['resolution_x'] / $info['video']['resolution_y'];
						}
					}
					break;

				// Meta tag
				case GETID3_FLV_TAG_META:
					if (!$found_meta) {
						$found_meta = true;
						$this->fseek(-1, SEEK_CUR);
						$datachunk = $this->fread($DataLength);
						$AMFstream = new AMFStream($datachunk);
						$reader = new AMFReader($AMFstream);
						$eventName = $reader->readData();
						$info['flv']['meta'][$eventName] = $reader->readData();
						unset($reader);

						$copykeys = array('framerate'=>'frame_rate', 'width'=>'resolution_x', 'height'=>'resolution_y', 'audiodatarate'=>'bitrate', 'videodatarate'=>'bitrate');
						foreach ($copykeys as $sourcekey => $destkey) {
							if (isset($info['flv']['meta']['onMetaData'][$sourcekey])) {
								switch ($sourcekey) {
									case 'width':
									case 'height':
										$info['video'][$destkey] = intval(round($info['flv']['meta']['onMetaData'][$sourcekey]));
										break;
									case 'audiodatarate':
										$info['audio'][$destkey] = getid3_lib::CastAsInt(round($info['flv']['meta']['onMetaData'][$sourcekey] * 1000));
										break;
									case 'videodatarate':
									case 'frame_rate':
									default:
										$info['video'][$destkey] = $info['flv']['meta']['onMetaData'][$sourcekey];
										break;
								}
							}
						}
						if (!empty($info['flv']['meta']['onMetaData']['duration'])) {
							$found_valid_meta_playtime = true;
						}
					}
					break;

				default:
					// noop
					break;
			}
			$this->fseek($NextOffset);
		}

		$info['playtime_seconds'] = $Duration / 1000;
		if ($info['playtime_seconds'] > 0) {
			$info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
		}

		if ($info['flv']['header']['hasAudio']) {
			$info['audio']['codec']           =   self::audioFormatLookup($info['flv']['audio']['audioFormat']);
			$info['audio']['sample_rate']     =     self::audioRateLookup($info['flv']['audio']['audioRate']);
			$info['audio']['bits_per_sample'] = self::audioBitDepthLookup($info['flv']['audio']['audioSampleSize']);

			$info['audio']['channels']   =  $info['flv']['audio']['audioType'] + 1; // 0=mono,1=stereo
			$info['audio']['lossless']   = ($info['flv']['audio']['audioFormat'] ? false : true); // 0=uncompressed
			$info['audio']['dataformat'] = 'flv';
		}
		if (!empty($info['flv']['header']['hasVideo'])) {
			$info['video']['codec']      = self::videoCodecLookup($info['flv']['video']['videoCodec']);
			$info['video']['dataformat'] = 'flv';
			$info['video']['lossless']   = false;
		}

		// Set information from meta
		if (!empty($info['flv']['meta']['onMetaData']['duration'])) {
			$info['playtime_seconds'] = $info['flv']['meta']['onMetaData']['duration'];
			$info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds'];
		}
		if (isset($info['flv']['meta']['onMetaData']['audiocodecid'])) {
			$info['audio']['codec'] = self::audioFormatLookup($info['flv']['meta']['onMetaData']['audiocodecid']);
		}
		if (isset($info['flv']['meta']['onMetaData']['videocodecid'])) {
			$info['video']['codec'] = self::videoCodecLookup($info['flv']['meta']['onMetaData']['videocodecid']);
		}
		return true;
	}

	/**
	 * @param int $id
	 *
	 * @return string|false
	 */
	public static function audioFormatLookup($id) {
		static $lookup = array(
			0  => 'Linear PCM, platform endian',
			1  => 'ADPCM',
			2  => 'mp3',
			3  => 'Linear PCM, little endian',
			4  => 'Nellymoser 16kHz mono',
			5  => 'Nellymoser 8kHz mono',
			6  => 'Nellymoser',
			7  => 'G.711A-law logarithmic PCM',
			8  => 'G.711 mu-law logarithmic PCM',
			9  => 'reserved',
			10 => 'AAC',
			11 => 'Speex',
			12 => false, // unknown?
			13 => false, // unknown?
			14 => 'mp3 8kHz',
			15 => 'Device-specific sound',
		);
		return (isset($lookup[$id]) ? $lookup[$id] : false);
	}

	/**
	 * @param int $id
	 *
	 * @return int|false
	 */
	public static function audioRateLookup($id) {
		static $lookup = array(
			0 =>  5500,
			1 => 11025,
			2 => 22050,
			3 => 44100,
		);
		return (isset($lookup[$id]) ? $lookup[$id] : false);
	}

	/**
	 * @param int $id
	 *
	 * @return int|false
	 */
	public static function audioBitDepthLookup($id) {
		static $lookup = array(
			0 =>  8,
			1 => 16,
		);
		return (isset($lookup[$id]) ? $lookup[$id] : false);
	}

	/**
	 * @param int $id
	 *
	 * @return string|false
	 */
	public static function videoCodecLookup($id) {
		static $lookup = array(
			GETID3_FLV_VIDEO_H263         => 'Sorenson H.263',
			GETID3_FLV_VIDEO_SCREEN       => 'Screen video',
			GETID3_FLV_VIDEO_VP6FLV       => 'On2 VP6',
			GETID3_FLV_VIDEO_VP6FLV_ALPHA => 'On2 VP6 with alpha channel',
			GETID3_FLV_VIDEO_SCREENV2     => 'Screen video v2',
			GETID3_FLV_VIDEO_H264         => 'Sorenson H.264',
		);
		return (isset($lookup[$id]) ? $lookup[$id] : false);
	}
}

class AMFStream
{
	/**
	 * @var string
	 */
	public $bytes;

	/**
	 * @var int
	 */
	public $pos;

	/**
	 * @param string $bytes
	 */
	public function __construct(&$bytes) {
		$this->bytes =& $bytes;
		$this->pos = 0;
	}

	/**
	 * @return int
	 */
	public function readByte() { //  8-bit
		return ord(substr($this->bytes, $this->pos++, 1));
	}

	/**
	 * @return int
	 */
	public function readInt() { // 16-bit
		return ($this->readByte() << 8) + $this->readByte();
	}

	/**
	 * @return int
	 */
	public function readLong() { // 32-bit
		return ($this->readByte() << 24) + ($this->readByte() << 16) + ($this->readByte() << 8) + $this->readByte();
	}

	/**
	 * @return float|false
	 */
	public function readDouble() {
		return getid3_lib::BigEndian2Float($this->read(8));
	}

	/**
	 * @return string
	 */
	public function readUTF() {
		$length = $this->readInt();
		return $this->read($length);
	}

	/**
	 * @return string
	 */
	public function readLongUTF() {
		$length = $this->readLong();
		return $this->read($length);
	}

	/**
	 * @param int $length
	 *
	 * @return string
	 */
	public function read($length) {
		$val = substr($this->bytes, $this->pos, $length);
		$this->pos += $length;
		return $val;
	}

	/**
	 * @return int
	 */
	public function peekByte() {
		$pos = $this->pos;
		$val = $this->readByte();
		$this->pos = $pos;
		return $val;
	}

	/**
	 * @return int
	 */
	public function peekInt() {
		$pos = $this->pos;
		$val = $this->readInt();
		$this->pos = $pos;
		return $val;
	}

	/**
	 * @return int
	 */
	public function peekLong() {
		$pos = $this->pos;
		$val = $this->readLong();
		$this->pos = $pos;
		return $val;
	}

	/**
	 * @return float|false
	 */
	public function peekDouble() {
		$pos = $this->pos;
		$val = $this->readDouble();
		$this->pos = $pos;
		return $val;
	}

	/**
	 * @return string
	 */
	public function peekUTF() {
		$pos = $this->pos;
		$val = $this->readUTF();
		$this->pos = $pos;
		return $val;
	}

	/**
	 * @return string
	 */
	public function peekLongUTF() {
		$pos = $this->pos;
		$val = $this->readLongUTF();
		$this->pos = $pos;
		return $val;
	}
}

class AMFReader
{
	/**
	* @var AMFStream
	*/
	public $stream;

	/**
	 * @param AMFStream $stream
	 */
	public function __construct(AMFStream $stream) {
		$this->stream = $stream;
	}

	/**
	 * @return mixed
	 */
	public function readData() {
		$value = null;

		$type = $this->stream->readByte();
		switch ($type) {

			// Double
			case 0:
				$value = $this->readDouble();
			break;

			// Boolean
			case 1:
				$value = $this->readBoolean();
				break;

			// String
			case 2:
				$value = $this->readString();
				break;

			// Object
			case 3:
				$value = $this->readObject();
				break;

			// null
			case 6:
				return null;

			// Mixed array
			case 8:
				$value = $this->readMixedArray();
				break;

			// Array
			case 10:
				$value = $this->readArray();
				break;

			// Date
			case 11:
				$value = $this->readDate();
				break;

			// Long string
			case 13:
				$value = $this->readLongString();
				break;

			// XML (handled as string)
			case 15:
				$value = $this->readXML();
				break;

			// Typed object (handled as object)
			case 16:
				$value = $this->readTypedObject();
				break;

			// Long string
			default:
				$value = '(unknown or unsupported data type)';
				break;
		}

		return $value;
	}

	/**
	 * @return float|false
	 */
	public function readDouble() {
		return $this->stream->readDouble();
	}

	/**
	 * @return bool
	 */
	public function readBoolean() {
		return $this->stream->readByte() == 1;
	}

	/**
	 * @return string
	 */
	public function readString() {
		return $this->stream->readUTF();
	}

	/**
	 * @return array
	 */
	public function readObject() {
		// Get highest numerical index - ignored
//		$highestIndex = $this->stream->readLong();

		$data = array();
		$key = null;

		while ($key = $this->stream->readUTF()) {
			$data[$key] = $this->readData();
		}
		// Mixed array record ends with empty string (0x00 0x00) and 0x09
		if (($key == '') && ($this->stream->peekByte() == 0x09)) {
			// Consume byte
			$this->stream->readByte();
		}
		return $data;
	}

	/**
	 * @return array
	 */
	public function readMixedArray() {
		// Get highest numerical index - ignored
		$highestIndex = $this->stream->readLong();

		$data = array();
		$key = null;

		while ($key = $this->stream->readUTF()) {
			if (is_numeric($key)) {
				$key = (int) $key;
			}
			$data[$key] = $this->readData();
		}
		// Mixed array record ends with empty string (0x00 0x00) and 0x09
		if (($key == '') && ($this->stream->peekByte() == 0x09)) {
			// Consume byte
			$this->stream->readByte();
		}

		return $data;
	}

	/**
	 * @return array
	 */
	public function readArray() {
		$length = $this->stream->readLong();
		$data = array();

		for ($i = 0; $i < $length; $i++) {
			$data[] = $this->readData();
		}
		return $data;
	}

	/**
	 * @return float|false
	 */
	public function readDate() {
		$timestamp = $this->stream->readDouble();
		$timezone = $this->stream->readInt();
		return $timestamp;
	}

	/**
	 * @return string
	 */
	public function readLongString() {
		return $this->stream->readLongUTF();
	}

	/**
	 * @return string
	 */
	public function readXML() {
		return $this->stream->readLongUTF();
	}

	/**
	 * @return array
	 */
	public function readTypedObject() {
		$className = $this->stream->readUTF();
		return $this->readObject();
	}
}

class AVCSequenceParameterSetReader
{
	/**
	 * @var string
	 */
	public $sps;
	public $start = 0;
	public $currentBytes = 0;
	public $currentBits = 0;

	/**
	 * @var int
	 */
	public $width;

	/**
	 * @var int
	 */
	public $height;

	/**
	 * @param string $sps
	 */
	public function __construct($sps) {
		$this->sps = $sps;
	}

	public function readData() {
		$this->skipBits(8);
		$this->skipBits(8);
		$profile = $this->getBits(8);                               // read profile
		if ($profile > 0) {
			$this->skipBits(8);
			$level_idc = $this->getBits(8);                         // level_idc
			$this->expGolombUe();                                   // seq_parameter_set_id // sps
			$this->expGolombUe();                                   // log2_max_frame_num_minus4
			$picOrderType = $this->expGolombUe();                   // pic_order_cnt_type
			if ($picOrderType == 0) {
				$this->expGolombUe();                               // log2_max_pic_order_cnt_lsb_minus4
			} elseif ($picOrderType == 1) {
				$this->skipBits(1);                                 // delta_pic_order_always_zero_flag
				$this->expGolombSe();                               // offset_for_non_ref_pic
				$this->expGolombSe();                               // offset_for_top_to_bottom_field
				$num_ref_frames_in_pic_order_cnt_cycle = $this->expGolombUe(); // num_ref_frames_in_pic_order_cnt_cycle
				for ($i = 0; $i < $num_ref_frames_in_pic_order_cnt_cycle; $i++) {
					$this->expGolombSe();                           // offset_for_ref_frame[ i ]
				}
			}
			$this->expGolombUe();                                   // num_ref_frames
			$this->skipBits(1);                                     // gaps_in_frame_num_value_allowed_flag
			$pic_width_in_mbs_minus1 = $this->expGolombUe();        // pic_width_in_mbs_minus1
			$pic_height_in_map_units_minus1 = $this->expGolombUe(); // pic_height_in_map_units_minus1

			$frame_mbs_only_flag = $this->getBits(1);               // frame_mbs_only_flag
			if ($frame_mbs_only_flag == 0) {
				$this->skipBits(1);                                 // mb_adaptive_frame_field_flag
			}
			$this->skipBits(1);                                     // direct_8x8_inference_flag
			$frame_cropping_flag = $this->getBits(1);               // frame_cropping_flag

			$frame_crop_left_offset   = 0;
			$frame_crop_right_offset  = 0;
			$frame_crop_top_offset    = 0;
			$frame_crop_bottom_offset = 0;

			if ($frame_cropping_flag) {
				$frame_crop_left_offset   = $this->expGolombUe();   // frame_crop_left_offset
				$frame_crop_right_offset  = $this->expGolombUe();   // frame_crop_right_offset
				$frame_crop_top_offset    = $this->expGolombUe();   // frame_crop_top_offset
				$frame_crop_bottom_offset = $this->expGolombUe();   // frame_crop_bottom_offset
			}
			$this->skipBits(1);                                     // vui_parameters_present_flag
			// etc

			$this->width  = (($pic_width_in_mbs_minus1 + 1) * 16) - ($frame_crop_left_offset * 2) - ($frame_crop_right_offset * 2);
			$this->height = ((2 - $frame_mbs_only_flag) * ($pic_height_in_map_units_minus1 + 1) * 16) - ($frame_crop_top_offset * 2) - ($frame_crop_bottom_offset * 2);
		}
	}

	/**
	 * @param int $bits
	 */
	public function skipBits($bits) {
		$newBits = $this->currentBits + $bits;
		$this->currentBytes += (int)floor($newBits / 8);
		$this->currentBits = $newBits % 8;
	}

	/**
	 * @return int
	 */
	public function getBit() {
		$result = (getid3_lib::BigEndian2Int(substr($this->sps, $this->currentBytes, 1)) >> (7 - $this->currentBits)) & 0x01;
		$this->skipBits(1);
		return $result;
	}

	/**
	 * @param int $bits
	 *
	 * @return int
	 */
	public function getBits($bits) {
		$result = 0;
		for ($i = 0; $i < $bits; $i++) {
			$result = ($result << 1) + $this->getBit();
		}
		return $result;
	}

	/**
	 * @return int
	 */
	public function expGolombUe() {
		$significantBits = 0;
		$bit = $this->getBit();
		while ($bit == 0) {
			$significantBits++;
			$bit = $this->getBit();

			if ($significantBits > 31) {
				// something is broken, this is an emergency escape to prevent infinite loops
				return 0;
			}
		}
		return (1 << $significantBits) + $this->getBits($significantBits) - 1;
	}

	/**
	 * @return int
	 */
	public function expGolombSe() {
		$result = $this->expGolombUe();
		if (($result & 0x01) == 0) {
			return -($result >> 1);
		} else {
			return ($result + 1) >> 1;
		}
	}

	/**
	 * @return int
	 */
	public function getWidth() {
		return $this->width;
	}

	/**
	 * @return int
	 */
	public function getHeight() {
		return $this->height;
	}
}
The Pochette Metis is an ideal companion if you’re in search – Base de données MCPV "Prestataires"

Base de données MCPV "Prestataires"

The Pochette Metis is an ideal companion if you’re in search

Luxurious Designer Replica Handbags Online Retailer Bag Copy Co

With 10 Years of Experience in Sourcing products from china,We will share data of tips on how to wholesale merchandise from china and the way different sorts of products are made in China. We offer a unique answer to source premium provider replica bags, fulfill your orders easier, increase your income Replica Handbags, and simplify your corporation.. If you plan to sell replicas on-line, we can advise you on the means to stay on the proper side of the regulation and avoid getting into bother. Do not hesitate to contact Leeline Sourcing when you have any questions concerning this matter. The first copy is the same copy of an genuine product without altering its design and specifications. These copies are made with low-quality material but principally look like the unique one.

To help them out, EJET has shortlisted 5 cities where not solely replica baggage, but different leather merchandise can be found. ‘Celebrity Handbags’ is a well-known website that offers a quantity of duplicate luggage of different well-known brands like Dior, Gucci, Celine, Louis Vuitton, Hermes, Prada, etc. So for, well-established retailers which have an enormous customer demand for pretend designer bags, they need to undoubtedly go for Made in China. Yes it’s protected to buy fake designer bags, however know that you simply get what you pay for and the standard won’t be unhealthy but not nearly as good as the unique. Knock-off bags are replicas of the unique and fake to be the same as it.

In this article replica bags, we’ll uncover what sellers of reproduction Gucci controllato products don’t need you to know, and the way to shield yourself from being deceived. If a purchaser is on the lookout for a real product, they should only buy from designated licensed retailers of the real purse. They should ask resellers for hard proof that the bag is actual. Some “super fakes” can cost hundreds of dollars and be nicely definitely value the excessive price as nicely. Of course replica bags online replica bags, shopping for in-person is at all times one of the best ways to determine quality, as the look and feel of a bag is rarely truly discernible from photos. The drawback is that super-fake handbags are hard to tell from the actual deal and their value could additionally be close to the genuine article.

They provide a couple of thousand Louis Vuitton luggage and prices are normally multiple thousand dollars. You also can read some buyer evaluations to help you determine the sellers in AliExpress. There are some photos of the particular merchandise with logos from the shoppers within the suggestions. If buying from Alibaba Replica Bags fake bags, you have to meet a MOQ set by suppliers on it, which is normally high and not really easy to decrease. And compared to DHgate, most replica bag suppliers on Alibaba don’t show detailed product listings on their outlets. Usually, they only present their product categories or manufacturers in an image with texts only.

This is a bit trickier should you’re buying second-hand, however it’s a good sign if it has the authenticity paperwork with it. Designer handbags comprise labels telling you the means to correctly care for your very expensive funding. If these are lacking, there’s a risk somebody ripped them out, but the extra likely rationalization is that the bag is pretend. The Pochette Metis is an ideal companion if you’re in search of a small, cute bag. It has an adjustable strap, which you can use on casual days and night time outs. Although petite, you’ll be stunned by the objects it can carry.

The woven leather has held up extremely nicely and the craftsmanship is top-tier replica bags, and I love that there’s no loud branding or logos. It fit greater than I anticipated replica bags, and I loved that I might tuck within the strap and turn it into a clutch for fancier outings. I also had a really nice experience with the in-store customer support, which is honestly uncommon today, even with high finish manufacturers. I assume what sets Bottega apart is how timeless the designs are particularly the woven pieces. They’re trendy and trend-aware with out ever feeling like they’re attempting too hard or copying others. I actually believe Bottega is an investment bag because they do issues their very own way they usually do it very well.

We’re not a reseller scraping inventory together—we’re a curated replica shop that treats sourcing significantly. There’s a purpose you won’t find these items on typical reproduction marketplaces. They’re sourced specifically for this retailer and stored unique to Bag Copy Co.

Luxurious Designer Replica Handbags Online Retailer Bag Copy Co With 10 Years of Experience in Sourcing products from china,We will share data of tips on how to wholesale merchandise from china and the way different sorts of products are made in China. We offer a unique answer to source premium provider replica bags, fulfill your orders…

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