ranacseruet/VideoStream.php

## VideoStream.php
<?php
/**
 * Description of VideoStream
 *
 * @author Rana
 * @link http://codesamplez.com/programming/php-html5-video-streaming-tutorial
 */
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();
    }
}
	<?php
	/**
	* Description of VideoStream
	*
	* @author Rana
	* @link http://codesamplez.com/programming/php-html5-video-streaming-tutorial
	*/
	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();
	}
	}