PHP Streaming video player

gistfile1.txt

  function watch()
    {


        $file = $this->getAbsolutePath();
        $name = $this->getUploadedName();
        $mime_type = $this->getMimeType();

        /*
        This function takes a path to a file to output ($file),
        the filename that the browser will see ($name) and
        the MIME type of the file ($mime_type, optional).

        If you want to do something on download abort/finish,
        register_shutdown_function('function_name');
        */
        if(!is_readable($file)) die('File not found or inaccessible!');

        $size = filesize($file);
        $name = rawurldecode($name);

        /* Figure out the MIME type (if not specified) */
        $known_mime_types=array(
            "gif" => "video/mp4",
            "png" => "video/ogg",
            "jpeg"=> "video/webm"
        );

        $file_extension = strtolower(substr(strrchr($file,"."),1));

        if($mime_type=='')
        {
            if(array_key_exists($file_extension, $known_mime_types))
            {
                $mime_type=$known_mime_types[$file_extension];
            }
        }

        if (!($file = fopen($file, 'rb'))) {
            die('Could not open stream for reading');
        }

        $begin = 0;
        $buffer = 102400;
        $end = $size - 1;

        ob_get_clean();
        header('Content-Type: ' . $mime_type);
        header("Cache-Control: max-age=2592000, public");
        header('Accept-Ranges: 0-'.$end );

        if(isset($_SERVER['HTTP_RANGE'])) {

            $c_start = $begin;
            $c_end = $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 $begin-$end/".$size);
                exit;
            }

            if($range == '-'){
                $c_start = $size - substr($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 > $end) ? $end : $c_end;
            if ($c_start > $c_end || $c_start > $size - 1 || $c_end >= $size) {
                header('HTTP/1.1 416 Requested Range Not Satisfiable');
                header("Content-Range: bytes $begin-$end/".$size);
                exit;
            }
            $begin = $c_start;
            $end = $c_end;
            $length = $end - $begin + 1;
            fseek($file, $begin);
            header('HTTP/1.1 206 Partial Content');
            header("Content-Length: ".$length);
            header("Content-Range: bytes $begin-$end/".$size);
        } else {
            header("Content-Length: ".$size);
        }

        $i = $begin;
        set_time_limit(0);

        while(!feof($file)&&$i<=$end)
        {
            $bytesToRead = $buffer;
            if(($i+$bytesToRead) > $end) {
                $bytesToRead = $end - $i + 1;
            }
            $data = fread($file, $bytesToRead);
            echo $data;
            flush();
            $i += $bytesToRead;
        }


        fclose($file);
        exit;
    }