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+<?php
+// +----------------------------------------------------------------------+
+// | PHP version 5 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen |
+// +----------------------------------------------------------------------+
+// | This source file is subject to version 2 of the GPL license, |
+// | that is bundled with this package in the file license.txt and is |
+// | available through the world-wide-web at the following url: |
+// | http://www.gnu.org/copyleft/gpl.html |
+// +----------------------------------------------------------------------+
+// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org |
+// +----------------------------------------------------------------------+
+// | Authors: James Heinrich <infoØgetid3*org> |
+// | Allan Hansen <ahØartemis*dk> |
+// +----------------------------------------------------------------------+
+// | module.archive.gzip.php |
+// | module for analyzing GZIP files |
+// | dependencies: NONE |
+// +----------------------------------------------------------------------+
+// | FLV module by Seth Kaufman <sethØwhirl-i.gig*com> |
+// | |
+// | * version 0.1 (26 June 2005) |
+// | |
+// | minor modifications by James Heinrich <infoØgetid3*org> |
+// | * version 0.1.1 (15 July 2005) |
+// | |
+// | Support for On2 VP6 codec and meta information by |
+// | Steve Webster <steve.websterØfeaturecreep*com> |
+// | * version 0.2 (22 February 2006) |
+// | |
+// | Modified to not read entire file into memory |
+// | by James Heinrich <infoØgetid3*org> |
+// | * version 0.3 (15 June 2006) |
+// | |
+// | Modifications by Allan Hansen <ahØartemis*dk> |
+// | Adapted module for PHP5 and getID3 2.0.0. |
+// +----------------------------------------------------------------------+
+//
+// $Id: module.audio-video.flv.php,v 1.7 2006/11/10 11:20:12 ah Exp $
+
+
+
+class getid3_flv extends getid3_handler
+{
+
+ const TAG_AUDIO = 8;
+ const TAG_VIDEO = 9;
+ const TAG_META = 18;
+
+ const VIDEO_H263 = 2;
+ const VIDEO_SCREEN = 3;
+ const VIDEO_VP6 = 4;
+
+
+ public function Analyze()
+ {
+ $info = &$this->getid3->info;
+
+ $info['flv'] = array ();
+ $info_flv = &$info['flv'];
+
+ fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
+
+ $flv_data_length = $info['avdataend'] - $info['avdataoffset'];
+ $flv_header = fread($this->getid3->fp, 5);
+
+ $info['fileformat'] = 'flv';
+ $info_flv['header']['signature'] = substr($flv_header, 0, 3);
+ $info_flv['header']['version'] = getid3_lib::BigEndian2Int(substr($flv_header, 3, 1));
+ $type_flags = getid3_lib::BigEndian2Int(substr($flv_header, 4, 1));
+
+ $info_flv['header']['hasAudio'] = (bool) ($type_flags & 0x04);
+ $info_flv['header']['hasVideo'] = (bool) ($type_flags & 0x01);
+
+ $frame_size_data_length = getid3_lib::BigEndian2Int(fread($this->getid3->fp, 4));
+ $flv_header_frame_length = 9;
+ if ($frame_size_data_length > $flv_header_frame_length) {
+ fseek($this->getid3->fp, $frame_size_data_length - $flv_header_frame_length, SEEK_CUR);
+ }
+
+ $duration = 0;
+ while ((ftell($this->getid3->fp) + 1) < $info['avdataend']) {
+
+ $this_tag_header = fread($this->getid3->fp, 16);
+
+ $previous_tag_length = getid3_lib::BigEndian2Int(substr($this_tag_header, 0, 4));
+ $tag_type = getid3_lib::BigEndian2Int(substr($this_tag_header, 4, 1));
+ $data_length = getid3_lib::BigEndian2Int(substr($this_tag_header, 5, 3));
+ $timestamp = getid3_lib::BigEndian2Int(substr($this_tag_header, 8, 3));
+ $last_header_byte = getid3_lib::BigEndian2Int(substr($this_tag_header, 15, 1));
+ $next_offset = ftell($this->getid3->fp) - 1 + $data_length;
+
+ switch ($tag_type) {
+
+ case getid3_flv::TAG_AUDIO:
+ if (!isset($info_flv['audio']['audioFormat'])) {
+ $info_flv['audio']['audioFormat'] = $last_header_byte & 0x07;
+ $info_flv['audio']['audioRate'] = ($last_header_byte & 0x30) / 0x10;
+ $info_flv['audio']['audioSampleSize'] = ($last_header_byte & 0x40) / 0x40;
+ $info_flv['audio']['audioType'] = ($last_header_byte & 0x80) / 0x80;
+ }
+ break;
+
+
+ case getid3_flv::TAG_VIDEO:
+ if (!isset($info_flv['video']['videoCodec'])) {
+ $info_flv['video']['videoCodec'] = $last_header_byte & 0x07;
+
+ $flv_video_header = fread($this->getid3->fp, 11);
+
+ if ($info_flv['video']['videoCodec'] != getid3_flv::VIDEO_VP6) {
+
+ $picture_size_type = (getid3_lib::BigEndian2Int(substr($flv_video_header, 3, 2))) >> 7;
+ $picture_size_type = $picture_size_type & 0x0007;
+ $info_flv['header']['videoSizeType'] = $picture_size_type;
+
+ switch ($picture_size_type) {
+ case 0:
+ $picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 5, 2));
+ $picture_size_enc <<= 1;
+ $info['video']['resolution_x'] = ($picture_size_enc & 0xFF00) >> 8;
+ $picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 6, 2));
+ $picture_size_enc <<= 1;
+ $info['video']['resolution_y'] = ($picture_size_enc & 0xFF00) >> 8;
+ break;
+
+ case 1:
+ $picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 5, 4));
+ $picture_size_enc <<= 1;
+ $info['video']['resolution_x'] = ($picture_size_enc & 0xFFFF0000) >> 16;
+
+ $picture_size_enc = getid3_lib::BigEndian2Int(substr($flv_video_header, 7, 4));
+ $picture_size_enc <<= 1;
+ $info['video']['resolution_y'] = ($picture_size_enc & 0xFFFF0000) >> 16;
+ 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;
+ $info['video']['resolution_y'] = 0;
+ break;
+ }
+ }
+ }
+ break;
+
+
+ // Meta tag
+ case getid3_flv::TAG_META:
+
+ fseek($this->getid3->fp, -1, SEEK_CUR);
+ $reader = new AMFReader(new AMFStream(fread($this->getid3->fp, $data_length)));
+ $event_name = $reader->readData();
+ $info['meta'][$event_name] = $reader->readData();
+ unset($reader);
+
+ $info['video']['frame_rate'] = @$info['meta']['onMetaData']['framerate'];
+ $info['video']['resolution_x'] = @$info['meta']['onMetaData']['width'];
+ $info['video']['resolution_y'] = @$info['meta']['onMetaData']['height'];
+ break;
+
+ default:
+ // noop
+ break;
+ }
+
+ if ($timestamp > $duration) {
+ $duration = $timestamp;
+ }
+
+ fseek($this->getid3->fp, $next_offset, SEEK_SET);
+ }
+
+ if ($info['playtime_seconds'] = $duration / 1000) {
+ $info['bitrate'] = ($info['avdataend'] - $info['avdataoffset']) / $info['playtime_seconds'];
+ }
+
+ if ($info_flv['header']['hasAudio']) {
+ $info['audio']['codec'] = $this->FLVaudioFormat($info_flv['audio']['audioFormat']);
+ $info['audio']['sample_rate'] = $this->FLVaudioRate($info_flv['audio']['audioRate']);
+ $info['audio']['bits_per_sample'] = $this->FLVaudioBitDepth($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
+ $info['audio']['dataformat'] = 'flv';
+ }
+ if (@$info_flv['header']['hasVideo']) {
+ $info['video']['codec'] = $this->FLVvideoCodec($info_flv['video']['videoCodec']);
+ $info['video']['dataformat'] = 'flv';
+ $info['video']['lossless'] = false;
+ }
+
+ return true;
+ }
+
+
+ public static function FLVaudioFormat($id) {
+
+ static $lookup = array(
+ 0 => 'uncompressed',
+ 1 => 'ADPCM',
+ 2 => 'mp3',
+ 5 => 'Nellymoser 8kHz mono',
+ 6 => 'Nellymoser',
+ );
+ return (@$lookup[$id] ? @$lookup[$id] : false);
+ }
+
+
+ public static function FLVaudioRate($id) {
+
+ static $lookup = array(
+ 0 => 5500,
+ 1 => 11025,
+ 2 => 22050,
+ 3 => 44100,
+ );
+ return (@$lookup[$id] ? @$lookup[$id] : false);
+ }
+
+
+ public static function FLVaudioBitDepth($id) {
+
+ static $lookup = array(
+ 0 => 8,
+ 1 => 16,
+ );
+ return (@$lookup[$id] ? @$lookup[$id] : false);
+ }
+
+
+ public static function FLVvideoCodec($id) {
+
+ static $lookup = array(
+ getid3_flv::VIDEO_H263 => 'Sorenson H.263',
+ getid3_flv::VIDEO_SCREEN => 'Screen video',
+ getid3_flv::VIDEO_VP6 => 'On2 VP6',
+ );
+ return (@$lookup[$id] ? @$lookup[$id] : false);
+ }
+}
+
+
+
+class AMFStream
+{
+ public $bytes;
+ public $pos;
+
+
+ public function AMFStream($bytes) {
+
+ $this->bytes = $bytes;
+ $this->pos = 0;
+ }
+
+
+ public function readByte() {
+
+ return getid3_lib::BigEndian2Int(substr($this->bytes, $this->pos++, 1));
+ }
+
+
+ public function readInt() {
+
+ return ($this->readByte() << 8) + $this->readByte();
+ }
+
+
+ public function readLong() {
+
+ return ($this->readByte() << 24) + ($this->readByte() << 16) + ($this->readByte() << 8) + $this->readByte();
+ }
+
+
+ public function readDouble() {
+
+ return getid3_lib::BigEndian2Float($this->read(8));
+ }
+
+
+ public function readUTF() {
+
+ $length = $this->readInt();
+ return $this->read($length);
+ }
+
+
+ public function readLongUTF() {
+
+ $length = $this->readLong();
+ return $this->read($length);
+ }
+
+
+ public function read($length) {
+
+ $val = substr($this->bytes, $this->pos, $length);
+ $this->pos += $length;
+ return $val;
+ }
+
+
+ public function peekByte() {
+
+ $pos = $this->pos;
+ $val = $this->readByte();
+ $this->pos = $pos;
+ return $val;
+ }
+
+
+ public function peekInt() {
+
+ $pos = $this->pos;
+ $val = $this->readInt();
+ $this->pos = $pos;
+ return $val;
+ }
+
+
+ public function peekLong() {
+
+ $pos = $this->pos;
+ $val = $this->readLong();
+ $this->pos = $pos;
+ return $val;
+ }
+
+
+ public function peekDouble() {
+
+ $pos = $this->pos;
+ $val = $this->readDouble();
+ $this->pos = $pos;
+ return $val;
+ }
+
+
+ public function peekUTF() {
+
+ $pos = $this->pos;
+ $val = $this->readUTF();
+ $this->pos = $pos;
+ return $val;
+ }
+
+
+ public function peekLongUTF() {
+
+ $pos = $this->pos;
+ $val = $this->readLongUTF();
+ $this->pos = $pos;
+ return $val;
+ }
+}
+
+
+
+class AMFReader
+{
+ public $stream;
+
+ public function __construct($stream) {
+
+ $this->stream = $stream;
+ }
+
+
+ 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;
+ break;
+
+ // 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;
+ }
+
+
+ public function readDouble() {
+
+ return $this->stream->readDouble();
+ }
+
+
+ public function readBoolean() {
+
+ return $this->stream->readByte() == 1;
+ }
+
+
+ public function readString() {
+
+ return $this->stream->readUTF();
+ }
+
+
+ public function readObject() {
+
+ // Get highest numerical index - ignored
+ $highestIndex = $this->stream->readLong();
+
+ $data = array();
+
+ while ($key = $this->stream->readUTF()) {
+ // Mixed array record ends with empty string (0x00 0x00) and 0x09
+ if (($key == '') && ($this->stream->peekByte() == 0x09)) {
+ // Consume byte
+ $this->stream->readByte();
+ break;
+ }
+
+ $data[$key] = $this->readData();
+ }
+
+ return $data;
+ }
+
+
+ public function readMixedArray() {
+
+ // Get highest numerical index - ignored
+ $highestIndex = $this->stream->readLong();
+
+ $data = array();
+
+ while ($key = $this->stream->readUTF()) {
+ // Mixed array record ends with empty string (0x00 0x00) and 0x09
+ if (($key == '') && ($this->stream->peekByte() == 0x09)) {
+ // Consume byte
+ $this->stream->readByte();
+ break;
+ }
+
+ if (is_numeric($key)) {
+ $key = (float) $key;
+ }
+
+ $data[$key] = $this->readData();
+ }
+
+ return $data;
+ }
+
+
+ public function readArray() {
+
+ $length = $this->stream->readLong();
+
+ $data = array();
+
+ for ($i = 0; $i < count($length); $i++) {
+ $data[] = $this->readData();
+ }
+
+ return $data;
+ }
+
+
+ public function readDate() {
+
+ $timestamp = $this->stream->readDouble();
+ $timezone = $this->stream->readInt();
+ return $timestamp;
+ }
+
+
+ public function readLongString() {
+
+ return $this->stream->readLongUTF();
+ }
+
+
+ public function readXML() {
+
+ return $this->stream->readLongUTF();
+ }
+
+
+ public function readTypedObject() {
+
+ $className = $this->stream->readUTF();
+ return $this->readObject();
+ }
+}
+
+?> \ No newline at end of file
generated by cgit (git 2.34.1) at 2025-08-13 13:33:43 +0000