1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/e2gallerypro/e2upload/Backend/Assets/getid3/module.audio-video.flv.php	Mon Feb 22 08:02:39 2010 -0500
     1.3 @@ -0,0 +1,574 @@
     1.4 +<?php
     1.5 +// +----------------------------------------------------------------------+
     1.6 +// | PHP version 5                                                        |
     1.7 +// +----------------------------------------------------------------------+
     1.8 +// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen                 |
     1.9 +// +----------------------------------------------------------------------+
    1.10 +// | This source file is subject to version 2 of the GPL license,         |
    1.11 +// | that is bundled with this package in the file license.txt and is     |
    1.12 +// | available through the world-wide-web at the following url:           |
    1.13 +// | http://www.gnu.org/copyleft/gpl.html                                 |
    1.14 +// +----------------------------------------------------------------------+
    1.15 +// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org    |
    1.16 +// +----------------------------------------------------------------------+
    1.17 +// | Authors: James Heinrich <infoØgetid3*org>                            |
    1.18 +// |          Allan Hansen <ahØartemis*dk>                                |
    1.19 +// +----------------------------------------------------------------------+
    1.20 +// | module.archive.gzip.php                                              |
    1.21 +// | module for analyzing GZIP files                                      |
    1.22 +// | dependencies: NONE                                                   |
    1.23 +// +----------------------------------------------------------------------+
    1.24 +// | FLV module by Seth Kaufman <sethØwhirl-i.gig*com>                    |
    1.25 +// |                                                                      |
    1.26 +// | * version 0.1 (26 June 2005)                                         |
    1.27 +// |                                                                      |
    1.28 +// | minor modifications by James Heinrich <infoØgetid3*org>              |
    1.29 +// | * version 0.1.1 (15 July 2005)                                       |
    1.30 +// |                                                                      |
    1.31 +// | Support for On2 VP6 codec and meta information by                    |
    1.32 +// | Steve Webster <steve.websterØfeaturecreep*com>                       |
    1.33 +// | * version 0.2 (22 February 2006)                                     |
    1.34 +// |                                                                      |
    1.35 +// | Modified to not read entire file into memory                         |
    1.36 +// | by James Heinrich <infoØgetid3*org>                                  |
    1.37 +// | * version 0.3 (15 June 2006)                                         |
    1.38 +// |                                                                      |
    1.39 +// | Modifications by Allan Hansen <ahØartemis*dk>                        |
    1.40 +// | Adapted module for PHP5 and getID3 2.0.0.                            |
    1.41 +// +----------------------------------------------------------------------+
    1.42 +//
    1.43 +// $Id: module.audio-video.flv.php,v 1.7 2006/11/10 11:20:12 ah Exp $
    1.44 +
    1.45 +
    1.46 +
    1.47 +class getid3_flv extends getid3_handler
    1.48 +{
    1.49 +    
    1.50 +    const TAG_AUDIO    =  8;
    1.51 +    const TAG_VIDEO    =  9;
    1.52 +    const TAG_META     = 18;
    1.53 +
    1.54 +    const VIDEO_H263   = 2;
    1.55 +    const VIDEO_SCREEN = 3;
    1.56 +    const VIDEO_VP6    = 4;
    1.57 +
    1.58 +    
    1.59 +	public function Analyze()
    1.60 +	{
    1.61 +	    $info = &$this->getid3->info;
    1.62 +	    
    1.63 +	    $info['flv'] = array ();
    1.64 +	    $info_flv = &$info['flv'];
    1.65 +	    
    1.66 +		fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
    1.67 +
    1.68 +		$flv_data_length = $info['avdataend'] - $info['avdataoffset'];
    1.69 +		$flv_header = fread($this->getid3->fp, 5);
    1.70 +
    1.71 +		$info['fileformat'] = 'flv';
    1.72 +		$info_flv['header']['signature'] =                           substr($flv_header, 0, 3);
    1.73 +		$info_flv['header']['version']   = getid3_lib::BigEndian2Int(substr($flv_header, 3, 1));
    1.74 +		$type_flags                      = getid3_lib::BigEndian2Int(substr($flv_header, 4, 1));
    1.75 +
    1.76 +		$info_flv['header']['hasAudio'] = (bool) ($type_flags & 0x04);
    1.77 +		$info_flv['header']['hasVideo'] = (bool) ($type_flags & 0x01);
    1.78 +
    1.79 +		$frame_size_data_length = getid3_lib::BigEndian2Int(fread($this->getid3->fp, 4));
    1.80 +		$flv_header_frame_length = 9;
    1.81 +		if ($frame_size_data_length > $flv_header_frame_length) {
    1.82 +			fseek($this->getid3->fp, $frame_size_data_length - $flv_header_frame_length, SEEK_CUR);
    1.83 +		}
    1.84 +
    1.85 +		$duration = 0;
    1.86 +		while ((ftell($this->getid3->fp) + 1) < $info['avdataend']) {
    1.87 +			
    1.88 +			$this_tag_header = fread($this->getid3->fp, 16);
    1.89 +
    1.90 +			$previous_tag_length = getid3_lib::BigEndian2Int(substr($this_tag_header,  0, 4));
    1.91 +			$tag_type            = getid3_lib::BigEndian2Int(substr($this_tag_header,  4, 1));
    1.92 +			$data_length         = getid3_lib::BigEndian2Int(substr($this_tag_header,  5, 3));
    1.93 +			$timestamp           = getid3_lib::BigEndian2Int(substr($this_tag_header,  8, 3));
    1.94 +			$last_header_byte    = getid3_lib::BigEndian2Int(substr($this_tag_header, 15, 1));
    1.95 +			$next_offset         = ftell($this->getid3->fp) - 1 + $data_length;
    1.96 +
    1.97 +			switch ($tag_type) {
    1.98 +				
    1.99 +				case getid3_flv::TAG_AUDIO:
   1.100 +					if (!isset($info_flv['audio']['audioFormat'])) {
   1.101 +						$info_flv['audio']['audioFormat']     =  $last_header_byte & 0x07;
   1.102 +						$info_flv['audio']['audioRate']       = ($last_header_byte & 0x30) / 0x10;
   1.103 +						$info_flv['audio']['audioSampleSize'] = ($last_header_byte & 0x40) / 0x40;
   1.104 +						$info_flv['audio']['audioType']       = ($last_header_byte & 0x80) / 0x80;
   1.105 +					}
   1.106 +					break;
   1.107 +
   1.108 +
   1.109 +				case getid3_flv::TAG_VIDEO:
   1.110 +					if (!isset($info_flv['video']['videoCodec'])) {
   1.111 +						$info_flv['video']['videoCodec'] = $last_header_byte & 0x07;
   1.112 +
   1.113 +						$flv_video_header = fread($this->getid3->fp, 11);
   1.114 +
   1.115 +						if ($info_flv['video']['videoCodec'] != getid3_flv::VIDEO_VP6) {
   1.116 +
   1.117 +							$picture_size_type = (getid3_lib::BigEndian2Int(substr($flv_video_header, 3, 2))) >> 7;
   1.118 +							$picture_size_type = $picture_size_type & 0x0007;
   1.119 +							$info_flv['header']['videoSizeType'] = $picture_size_type;
   1.120 +							
   1.121 +							switch ($picture_size_type) {
   1.122 +								case 0:
   1.123 +									$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 5, 2));
   1.124 +									$picture_size_enc <<= 1;
   1.125 +									$info['video']['resolution_x'] = ($picture_size_enc & 0xFF00) >> 8;
   1.126 +									$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 6, 2));
   1.127 +									$picture_size_enc <<= 1;
   1.128 +									$info['video']['resolution_y'] = ($picture_size_enc & 0xFF00) >> 8;
   1.129 +									break;
   1.130 +
   1.131 +								case 1:
   1.132 +									$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 5, 4));
   1.133 +									$picture_size_enc <<= 1;
   1.134 +									$info['video']['resolution_x'] = ($picture_size_enc & 0xFFFF0000) >> 16;
   1.135 +
   1.136 +									$picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 7, 4));
   1.137 +									$picture_size_enc <<= 1;
   1.138 +									$info['video']['resolution_y'] = ($picture_size_enc & 0xFFFF0000) >> 16;
   1.139 +									break;
   1.140 +
   1.141 +								case 2:
   1.142 +									$info['video']['resolution_x'] = 352;
   1.143 +									$info['video']['resolution_y'] = 288;
   1.144 +									break;
   1.145 +
   1.146 +								case 3:
   1.147 +									$info['video']['resolution_x'] = 176;
   1.148 +									$info['video']['resolution_y'] = 144;
   1.149 +									break;
   1.150 +
   1.151 +								case 4:
   1.152 +									$info['video']['resolution_x'] = 128;
   1.153 +									$info['video']['resolution_y'] = 96;
   1.154 +									break;
   1.155 +
   1.156 +								case 5:
   1.157 +									$info['video']['resolution_x'] = 320;
   1.158 +									$info['video']['resolution_y'] = 240;
   1.159 +									break;
   1.160 +
   1.161 +								case 6:
   1.162 +									$info['video']['resolution_x'] = 160;
   1.163 +									$info['video']['resolution_y'] = 120;
   1.164 +									break;
   1.165 +
   1.166 +								default:
   1.167 +									$info['video']['resolution_x'] = 0;
   1.168 +									$info['video']['resolution_y'] = 0;
   1.169 +									break;
   1.170 +							}
   1.171 +						}
   1.172 +					}
   1.173 +					break;
   1.174 +
   1.175 +
   1.176 +				// Meta tag
   1.177 +				case getid3_flv::TAG_META:
   1.178 +
   1.179 +					fseek($this->getid3->fp, -1, SEEK_CUR);
   1.180 +					$reader = new AMFReader(new AMFStream(fread($this->getid3->fp, $data_length)));
   1.181 +					$event_name = $reader->readData();
   1.182 +					$info['meta'][$event_name] = $reader->readData();
   1.183 +					unset($reader);
   1.184 +
   1.185 +					$info['video']['frame_rate']   = @$info['meta']['onMetaData']['framerate'];
   1.186 +					$info['video']['resolution_x'] = @$info['meta']['onMetaData']['width'];
   1.187 +					$info['video']['resolution_y'] = @$info['meta']['onMetaData']['height'];
   1.188 +					break;
   1.189 +
   1.190 +				default:
   1.191 +					// noop
   1.192 +					break;
   1.193 +			}
   1.194 +
   1.195 +			if ($timestamp > $duration) {
   1.196 +				$duration = $timestamp;
   1.197 +			}
   1.198 +
   1.199 +			fseek($this->getid3->fp, $next_offset, SEEK_SET);
   1.200 +		}
   1.201 +
   1.202 +		if ($info['playtime_seconds'] = $duration / 1000) {
   1.203 +		    $info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'];
   1.204 +		}
   1.205 +
   1.206 +		if ($info_flv['header']['hasAudio']) {
   1.207 +			$info['audio']['codec']           = $this->FLVaudioFormat($info_flv['audio']['audioFormat']);
   1.208 +			$info['audio']['sample_rate']     = $this->FLVaudioRate($info_flv['audio']['audioRate']);
   1.209 +			$info['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($info_flv['audio']['audioSampleSize']);
   1.210 +
   1.211 +			$info['audio']['channels']   = $info_flv['audio']['audioType'] + 1; // 0=mono,1=stereo
   1.212 +			$info['audio']['lossless']   = ($info_flv['audio']['audioFormat'] ? false : true); // 0=uncompressed
   1.213 +			$info['audio']['dataformat'] = 'flv';
   1.214 +		}
   1.215 +		if (@$info_flv['header']['hasVideo']) {
   1.216 +			$info['video']['codec']      = $this->FLVvideoCodec($info_flv['video']['videoCodec']);
   1.217 +			$info['video']['dataformat'] = 'flv';
   1.218 +			$info['video']['lossless']   = false;
   1.219 +		}
   1.220 +
   1.221 +		return true;
   1.222 +	}
   1.223 +
   1.224 +
   1.225 +	public static function FLVaudioFormat($id) {
   1.226 +	    
   1.227 +		static $lookup = array(
   1.228 +			0 => 'uncompressed',
   1.229 +			1 => 'ADPCM',
   1.230 +			2 => 'mp3',
   1.231 +			5 => 'Nellymoser 8kHz mono',
   1.232 +			6 => 'Nellymoser',
   1.233 +		);
   1.234 +		return (@$lookup[$id] ? @$lookup[$id] : false);
   1.235 +	}
   1.236 +
   1.237 +
   1.238 +	public static function FLVaudioRate($id) {
   1.239 +	    
   1.240 +		static $lookup = array(
   1.241 +			0 =>  5500,
   1.242 +			1 => 11025,
   1.243 +			2 => 22050,
   1.244 +			3 => 44100,
   1.245 +		);
   1.246 +		return (@$lookup[$id] ? @$lookup[$id] : false);
   1.247 +	}
   1.248 +
   1.249 +
   1.250 +	public static function FLVaudioBitDepth($id) {
   1.251 +	    
   1.252 +		static $lookup = array(
   1.253 +			0 =>  8,
   1.254 +			1 => 16,
   1.255 +		);
   1.256 +		return (@$lookup[$id] ? @$lookup[$id] : false);
   1.257 +	}
   1.258 +
   1.259 +
   1.260 +	public static function FLVvideoCodec($id) {
   1.261 +	    
   1.262 +		static $lookup = array(
   1.263 +			getid3_flv::VIDEO_H263   => 'Sorenson H.263',
   1.264 +			getid3_flv::VIDEO_SCREEN => 'Screen video',
   1.265 +			getid3_flv::VIDEO_VP6    => 'On2 VP6',
   1.266 +		);
   1.267 +		return (@$lookup[$id] ? @$lookup[$id] : false);
   1.268 +	}
   1.269 +}
   1.270 +
   1.271 +
   1.272 +
   1.273 +class AMFStream 
   1.274 +{
   1.275 +	public $bytes;
   1.276 +	public $pos;
   1.277 +
   1.278 +
   1.279 +	public function AMFStream($bytes) {
   1.280 +	    
   1.281 +		$this->bytes = $bytes;
   1.282 +		$this->pos = 0;
   1.283 +	}
   1.284 +
   1.285 +
   1.286 +	public function readByte() {
   1.287 +	    
   1.288 +		return getid3_lib::BigEndian2Int(substr($this->bytes, $this->pos++, 1));
   1.289 +	}
   1.290 +
   1.291 +
   1.292 +	public function readInt() {
   1.293 +	    
   1.294 +		return ($this->readByte() << 8) + $this->readByte();
   1.295 +	}
   1.296 +
   1.297 +
   1.298 +	public function readLong() {
   1.299 +	    
   1.300 +		return ($this->readByte() << 24) + ($this->readByte() << 16) + ($this->readByte() << 8) + $this->readByte();
   1.301 +	}
   1.302 +
   1.303 +
   1.304 +	public function readDouble() {
   1.305 +	    
   1.306 +		return getid3_lib::BigEndian2Float($this->read(8));
   1.307 +	}
   1.308 +
   1.309 +
   1.310 +	public function readUTF() {
   1.311 +	    
   1.312 +		$length = $this->readInt();
   1.313 +		return $this->read($length);
   1.314 +	}
   1.315 +
   1.316 +
   1.317 +	public function readLongUTF() {
   1.318 +	    
   1.319 +		$length = $this->readLong();
   1.320 +		return $this->read($length);
   1.321 +	}
   1.322 +
   1.323 +
   1.324 +	public function read($length) {
   1.325 +
   1.326 +		$val = substr($this->bytes, $this->pos, $length);
   1.327 +		$this->pos += $length;
   1.328 +		return $val;
   1.329 +	}
   1.330 +
   1.331 +	
   1.332 +	public function peekByte() {
   1.333 +	    
   1.334 +		$pos = $this->pos;
   1.335 +		$val = $this->readByte();
   1.336 +		$this->pos = $pos;
   1.337 +		return $val;
   1.338 +	}
   1.339 +
   1.340 +
   1.341 +	public function peekInt() {
   1.342 +
   1.343 +		$pos = $this->pos;
   1.344 +		$val = $this->readInt();
   1.345 +		$this->pos = $pos;
   1.346 +		return $val;
   1.347 +	}
   1.348 +
   1.349 +
   1.350 +	public function peekLong() {
   1.351 +	    
   1.352 +		$pos = $this->pos;
   1.353 +		$val = $this->readLong();
   1.354 +		$this->pos = $pos;
   1.355 +		return $val;
   1.356 +	}
   1.357 +
   1.358 +
   1.359 +	public function peekDouble() {  
   1.360 +	    
   1.361 +		$pos = $this->pos;
   1.362 +		$val = $this->readDouble();
   1.363 +		$this->pos = $pos;
   1.364 +		return $val;
   1.365 +	}
   1.366 +
   1.367 +
   1.368 +	public function peekUTF() {
   1.369 +	    
   1.370 +		$pos = $this->pos;
   1.371 +		$val = $this->readUTF();
   1.372 +		$this->pos = $pos;
   1.373 +		return $val;
   1.374 +	}
   1.375 +
   1.376 +
   1.377 +	public function peekLongUTF() {
   1.378 +	    
   1.379 +		$pos = $this->pos;
   1.380 +		$val = $this->readLongUTF();
   1.381 +		$this->pos = $pos;
   1.382 +		return $val;
   1.383 +	}
   1.384 +}
   1.385 +
   1.386 +
   1.387 +
   1.388 +class AMFReader 
   1.389 +{
   1.390 +	public $stream;
   1.391 +
   1.392 +	public function __construct($stream) {
   1.393 +	    
   1.394 +		$this->stream = $stream;
   1.395 +	}
   1.396 +
   1.397 +
   1.398 +	public function readData() {
   1.399 +	    
   1.400 +		$value = null;
   1.401 +
   1.402 +		$type = $this->stream->readByte();
   1.403 +
   1.404 +		switch($type) {
   1.405 +			// Double
   1.406 +			case 0:
   1.407 +				$value = $this->readDouble();
   1.408 +			break;
   1.409 +
   1.410 +			// Boolean
   1.411 +			case 1:
   1.412 +				$value = $this->readBoolean();
   1.413 +				break;
   1.414 +
   1.415 +			// String
   1.416 +			case 2:
   1.417 +				$value = $this->readString();
   1.418 +				break;
   1.419 +
   1.420 +			// Object
   1.421 +			case 3:
   1.422 +				$value = $this->readObject();
   1.423 +				break;
   1.424 +
   1.425 +			// null
   1.426 +			case 6:
   1.427 +				return null;
   1.428 +				break;
   1.429 +
   1.430 +			// Mixed array
   1.431 +			case 8:
   1.432 +				$value = $this->readMixedArray();
   1.433 +				break;
   1.434 +
   1.435 +			// Array
   1.436 +			case 10:
   1.437 +				$value = $this->readArray();
   1.438 +				break;
   1.439 +
   1.440 +			// Date
   1.441 +			case 11:
   1.442 +				$value = $this->readDate();
   1.443 +				break;
   1.444 +
   1.445 +			// Long string
   1.446 +			case 13:
   1.447 +				$value = $this->readLongString();
   1.448 +				break;
   1.449 +
   1.450 +			// XML (handled as string)
   1.451 +			case 15:
   1.452 +				$value = $this->readXML();
   1.453 +				break;
   1.454 +
   1.455 +			// Typed object (handled as object)
   1.456 +			case 16:
   1.457 +				$value = $this->readTypedObject();
   1.458 +				break;
   1.459 +
   1.460 +			// Long string
   1.461 +			default:
   1.462 +				$value = '(unknown or unsupported data type)';
   1.463 +			break;
   1.464 +		}
   1.465 +
   1.466 +		return $value;
   1.467 +	}
   1.468 +
   1.469 +
   1.470 +	public function readDouble() {    
   1.471 +	    
   1.472 +		return $this->stream->readDouble();
   1.473 +	}
   1.474 +
   1.475 +
   1.476 +	public function readBoolean() {
   1.477 +	    
   1.478 +		return $this->stream->readByte() == 1;
   1.479 +	}
   1.480 +           
   1.481 +           
   1.482 +	public function readString() {
   1.483 +	    
   1.484 +		return $this->stream->readUTF();
   1.485 +	}
   1.486 +
   1.487 +
   1.488 +	public function readObject() {
   1.489 +	    
   1.490 +		// Get highest numerical index - ignored
   1.491 +		$highestIndex = $this->stream->readLong();
   1.492 +
   1.493 +		$data = array();
   1.494 +
   1.495 +		while ($key = $this->stream->readUTF()) {
   1.496 +			// Mixed array record ends with empty string (0x00 0x00) and 0x09
   1.497 +			if (($key == '') && ($this->stream->peekByte() == 0x09)) {
   1.498 +				// Consume byte
   1.499 +				$this->stream->readByte();
   1.500 +				break;
   1.501 +			}
   1.502 +
   1.503 +			$data[$key] = $this->readData();
   1.504 +		}
   1.505 +
   1.506 +		return $data;
   1.507 +	}
   1.508 +
   1.509 +
   1.510 +	public function readMixedArray() {
   1.511 +	    
   1.512 +		// Get highest numerical index - ignored
   1.513 +		$highestIndex = $this->stream->readLong();
   1.514 +
   1.515 +		$data = array();
   1.516 +
   1.517 +		while ($key = $this->stream->readUTF()) {
   1.518 +			// Mixed array record ends with empty string (0x00 0x00) and 0x09
   1.519 +			if (($key == '') && ($this->stream->peekByte() == 0x09)) {
   1.520 +				// Consume byte
   1.521 +				$this->stream->readByte();
   1.522 +				break;
   1.523 +			}
   1.524 +
   1.525 +			if (is_numeric($key)) {
   1.526 +				$key = (float) $key;
   1.527 +			}
   1.528 +
   1.529 +			$data[$key] = $this->readData();
   1.530 +		}
   1.531 +
   1.532 +		return $data;
   1.533 +	}
   1.534 +
   1.535 +
   1.536 +	public function readArray() {
   1.537 +	    
   1.538 +		$length = $this->stream->readLong();
   1.539 +
   1.540 +		$data = array();
   1.541 +
   1.542 +		for ($i = 0; $i < count($length); $i++) {
   1.543 +			$data[] = $this->readData();
   1.544 +		}
   1.545 +
   1.546 +		return $data;
   1.547 +	}
   1.548 +
   1.549 +
   1.550 +	public function readDate() {
   1.551 +	    
   1.552 +		$timestamp = $this->stream->readDouble();
   1.553 +		$timezone = $this->stream->readInt();
   1.554 +		return $timestamp;
   1.555 +	}
   1.556 +
   1.557 +
   1.558 +	public function readLongString() {
   1.559 +	    
   1.560 +		return $this->stream->readLongUTF();
   1.561 +	}
   1.562 +
   1.563 +
   1.564 +	public function readXML() {
   1.565 +	    
   1.566 +		return $this->stream->readLongUTF();
   1.567 +	}
   1.568 +
   1.569 +
   1.570 +	public function readTypedObject() {  
   1.571 +	    
   1.572 +		$className = $this->stream->readUTF();
   1.573 +		return $this->readObject();
   1.574 +	}
   1.575 +}
   1.576 +
   1.577 +?>
   1.578 \ No newline at end of file