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File: examples/example13.php

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File: examples/example13.php
Role: Example script
Content type: text/plain
Description: This demonstrates how to simply create a FLV stream script.
Class: PHP Video Toolkit
Manipulate and convert videos with ffmpeg program
Author: By
Last change:
Date: 15 years ago
Size: 6,642 bytes
 

Contents

Class file image Download
<?php

   
/* SVN FILE: $Id$ */
   
    /**
     * @author Oliver Lillie (aka buggedcom) <publicmail@buggedcom.co.uk>
     * @package PHPVideoToolkit
     * @license BSD
     * @copyright Copyright (c) 2008 Oliver Lillie <http://www.buggedcom.co.uk>
     * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation
     * files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy,
     * modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software
     * is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be
     * included in all copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
     * WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
     * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     * @see JEROEN WIJERING Flash Media Player,
     * - @link http://www.jeroenwijering.com/?item=JW_FLV_Media_Player
     * - @author Jeroen Wijering.
     */

// set the packet details as we are restricting the bandwidth
// the default details set here mean 5kb per second, ie dialup speed.
   
$packet_size = isset($_GET['packet_size']) ? intval($_GET['packet_size']) : (isset($_COOKIE['packet_size']) ? intval($_COOKIE['packet_size']) : 5);
   
$packet_interval = 1;
   
setcookie('packet_size', $packet_size, time()+7200, '/');

    if(!isset(
$_GET['file']))
    {
        echo
'<html><head><script type="text/javascript" charset="utf-8" src="pluginobject/pluginobject.js"></script><script>PO.Options.auto_load_prefix="pluginobject/plugins/"</script></head><body>';
        echo
'<a style="font-size:12px;" href="index.php#examples">&larr; Back to examples list</a><br /><br />';
        echo
'<strong>This example shows how to simply create an FLV stream script.</strong><br />';
        echo
'<span style="font-size:12px;">&bull; The flash media player used below is Jeroen Wijering\'s excellent <a href="http://www.jeroenwijering.com/?item=JW_FLV_Media_Player">Flash Media Player</a>. Although bundled with this package the Flash Media Player has a <a href="http://creativecommons.org/licenses/by-nc-sa/2.0/">Creative Commons Attribution-Noncommercial-Share Alike 2.0 Generic</a> license.</span><br />';
        echo
'<span style="font-size:12px;">&bull; The media is embedded using <a href="http://sourceforge.net/projects/pluginobject/">PluginObject</a> to embed the examples. It is distributed under a BSD License.</span><br /><br />';
    }
   
// load the examples configuration
   
$ignore_config_output = true;
    require_once
'example-config.php';
   
// set the flv file
   
$flv = PHPVIDEOTOOLKIT_EXAMPLE_ABSOLUTE_BATH.'to-be-processed/rickroll.flv';
   
    if(isset(
$_GET['file']))
    {
// require the library
       
require_once '../phpvideotoolkit.'.$use_version.'.php';
// temp directory
       
$tmp_dir = PHPVIDEOTOOLKIT_EXAMPLE_ABSOLUTE_BATH.'tmp/';
// start ffmpeg class
       
$toolkit = new PHPVideoToolkit($tmp_dir);
// set the flv input
       
$toolkit->setInputFile($flv);
// get the incoming stream position
       
$stream_pos = isset($_GET['pos']) ? $_GET['pos'] : 0;
// in this example we will enable bandwidth limiting at the extreme and is not really practicle for live purposes
// it will only release 100 bytes of the file every second, thus it should take roughly 5 minutes to release a 29Mb file
// it will also prevent the browser cache from retaining the file.
       
$toolkit->flvStreamSeek($stream_pos, array('active'=>true, 'packet_size'=>$packet_size, 'packet_interval'=>$packet_interval), false);
        exit;
//<- exits
   
}
   
   
$size = filesize($flv);
    echo
'<strong>Bandwidth Restrictions and Download Rate.</strong><br />';
    echo
'The flv media is '.$size.' bytes, using the bandwidth speed limit of '.$packet_interval.' kb/s media should be completely loaded in roughly '.round($size/($packet_interval*1024*$packet_size), 1).' seconds.<br />';
    echo
'This may not appear to be the case in the player as the player will buffer the contents, You should notice that after a while the player will re-buffer the file. This is because the file was not loaded directly but through this script which buffered the release of the flv.<br />';
    echo
'However you can test this better by downloading <a href="example13.php?file=to-be-processed/rickroll.flv&pos=0&packet_size='.$packet_size.'">this link</a>.<br />';
    echo
'You should notice that the file is downloading as a normal file off the internet, however the flv will download at a extremely slowed rate (more like dial-up speed than broadband or DSL) even if you are testing this script on your localhost.<br />';
    echo
'<br />';
    echo
'<strong>Change the example bandwidth restriction.</strong><br />';
    echo
'<select onchange="document.location.href=\''.$_SERVER['PHP_SELF'].'?packet_size=\'+this.value">
<option label="5 kb/s (Dialup)" value="5"'
.($packet_size == '5' ? ' selected' : '').'>5 kb/s (Dialup)</option>
<option label="10 kb/s" value="10"'
.($packet_size == '10' ? ' selected' : '').'>10 kb/s</option>
<option label="20 kb/s" value="20"'
.($packet_size == '20' ? ' selected' : '').'>20 kb/s</option>
<option label="40 kb/s" value="40"'
.($packet_size == '40' ? ' selected' : '').'>40 kb/s</option>
<option label="80 kb/s" value="80"'
.($packet_size == '80' ? ' selected' : '').'>80 kb/s</option>
<option label="160 kb/s" value="160"'
.($packet_size == '160' ? ' selected' : '').'>160 kb/s</option>
</select><br />
<br />
<div id="embed-div"></div>
<script type="text/javascript" charset="utf-8">
PluginObject.embed("to-be-processed/rickroll.flv", {
    width : 400,
    height: 320,
    force_plugin:PluginObject.Plugins.FlashMedia,
    player: "mediaplayer/mediaplayer.swf",
    force_into_id:"embed-div",
    auto_fix_path:false,
    variables: {
        streamscript: "../example13.php",
        autostart: true
    }
});
</script><br />
</body></html>'
;

 

// echo '<embed
// src="mediaplayer/mediaplayer.swf"
// width="400"
// height="320"
// allowfullscreen="true"
// flashvars="width=400&height=320&autostart=true&file=example13.php?file=to-be-processed/rickroll.flv&searchbar=false&streamscript=../example13.php"
// />';