The Video Boardcast Platform

generally all inside items of center. Align:center feature provide and support.

<h3 class="w3-grey w3-block" >video file play</h3>
thats just video title like looks.
•   w3-grey // color code of w3.css  (w3-red, w3-orange...)   
•   w3-block // block width full setting up (sometime need)


<source src="data/play/video.php?v=.mp4" type="video/mp4" />

The URL of the video to embed. This is optional; you may instead use the source element within the video block to specify the video to embed. In advancing steps; video.php will be created and used. Direct URL is not used because
They can simply access your video file. A system that manages advanced video files is required. Advanced users generally do this. “video.php?v=file.mp4” or “go.php?f=filename.jpg”
The reason is that it can hold all control in its own hands. So measures and authority controls against other people's activities can be done.

if finishing thats. looks like this.

![1.png](

This example plays a video when activated, giving the user the browser's default video controls. Until the video starts playing, the image given is displayed in its place. If the browser doesn't support video playback, fallback text is displayed. It doesn't work right now because it's supposed to be like this. Be patient and check out the next steps.

Step:3

Create of video.php file and write this code

video.php

<?php
//video.php method v= filename
//sample video.php?v=filename1.mp4 return file stream
// Processing will be done here

?>

Processing will be done here.continue.

that code, video streaming of calculate Class a series of actions or steps taken in order to achieve a particular end.

class VideoStream
{
    private $path = "";
    private $stream = "";
    private $buffer = 102400;
    private $start  = -1;
    private $end    = -1;
    private $size   = 0;
 
    function __construct($filePath) 
    {
        $this->path = $filePath;
    }
     
    /**
     * Open stream
     */
    private function open()
    {
        if (!($this->stream = fopen($this->path, 'rb'))) {
            die('Could not open stream for reading');
        }
         
    }
     
    /**
     * Set proper header to serve the video content
     */
    private function setHeader()
    {
        ob_get_clean();
        header("Content-Type: video/mp4");
        header("Cache-Control: max-age=2592000, public");
        header("Expires: ".gmdate('D, d M Y H:i:s', time()+2592000) . ' GMT');
        header("Last-Modified: ".gmdate('D, d M Y H:i:s', @filemtime($this->path)) . ' GMT' );
        $this->start = 0;
        $this->size  = filesize($this->path);
        $this->end   = $this->size - 1;
        header("Accept-Ranges: 0-".$this->end);
         
        if (isset($_SERVER['HTTP_RANGE'])) {
  
            $c_start = $this->start;
            $c_end = $this->end;
 
            list(, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
            if (strpos($range, ',') !== false) {
                header('HTTP/1.1 416 Requested Range Not Satisfiable');
                header("Content-Range: bytes $this->start-$this->end/$this->size");
                exit;
            }
            if ($range == '-') {
                $c_start = $this->size - substr($range, 1);
            }else{
                $range = explode('-', $range);
                $c_start = $range[0];
                 
                $c_end = (isset($range[1]) && is_numeric($range[1])) ? $range[1] : $c_end;
            }
            $c_end = ($c_end > $this->end) ? $this->end : $c_end;
            if ($c_start > $c_end || $c_start > $this->size - 1 || $c_end >= $this->size) {
                header('HTTP/1.1 416 Requested Range Not Satisfiable');
                header("Content-Range: bytes $this->start-$this->end/$this->size");
                exit;
            }
            $this->start = $c_start;
            $this->end = $c_end;
            $length = $this->end - $this->start + 1;
            fseek($this->stream, $this->start);
            header('HTTP/1.1 206 Partial Content');
            header("Content-Length: ".$length);
            header("Content-Range: bytes $this->start-$this->end/".$this->size);
        }
        else
        {
            header("Content-Length: ".$this->size);
        }  
         
    }
    
    /**
     * close curretly opened stream
     */
    private function end()
    {
        fclose($this->stream);
        exit;
    }
     
    /**
     * perform the streaming of calculated range
     */
    private function stream()
    {
        $i = $this->start;
        set_time_limit(0);
        while(!feof($this->stream) && $i <= $this->end) {
            $bytesToRead = $this->buffer;
            if(($i+$bytesToRead) > $this->end) {
                $bytesToRead = $this->end - $i + 1;
            }
            $data = fread($this->stream, $bytesToRead);
            echo $data;
            flush();
            $i += $bytesToRead;
        }
    }
     
    /**
     * Start streaming video content
     */
    function start()
    {
        $this->open();
        $this->setHeader();
        $this->stream();
        $this->end();
    }
}

A ready-made class in which the annotation is available. The reason for these codes is to work properly.
It contains some basic solutions. It is working properly.

• Finding the type of video
• Transferring video length from file
• Caching control Processing
• Avoiding any integrated errors
• Byte to read system with controlled loading cycles
• Setting up set_time_limit

Let's just go under.Let me continue.

if( !defined('APP') && !isset($_SERVER['HTTP_REFERER']) ){
die("No direct access is allowed.");
}

$file1='vid/'.$_GET['v'];

$stream1 = new VideoStream($file1);
$stream1->start();
exit;

here is a valid transaction upon request. Blocking to some unwanted things.

Detail of code:

if( !defined('APP') && !isset($_SERVER['HTTP_REFERER']) )
Here is a general method. Prevent access from another application or from another site.
defined('APP') stipulated to be predefined. Must be pre-defined to index.php

$file1='vid/'.$_GET['v'];
I need to know the path to the video file. .$_GET using geeft method. Being a file extension is essential. Must be mp4 ext because mostly useful and compatible.

$stream1 = new VideoStream($file1);
here we use the existing VideoStream Class, call function  $file1 by file path.

$stream1->start();

were used start. if it is not written then it will not work to process

for now the job there video.php seem finished.

http://127.0.0.1/data/play/video.php?v=demo.mp4
you can try.. direct access. To avoid theft.

That's now Ends here. It will become more complicated with the next lessons