PHP - Php Streaming Using Ming

So i have a large video files, 1.5 gigs even.
I made an html5 video player where the source is a php file.
The php file is supposed to go below the web root and serve the video file to the html5 video tag.

This all works just fine if the video using a script that uses HTTP_RANGE to serve the file in parts to the client.
The problem is, once one video is playing - i can't do anything else.  Its like the server locks up. I mean i can scrub that video, i can do anything to that page.  I just can't navigate away.  But i can open a new browser and play a new video.  But again, once that first one is playing, or even paused, i can't do anything else.

That is of course until i restart apache.

Any ideas on how to stream these large files better? I have a feeling they are set to stream and never stop.
This is the code for that

Code: [Select]
function rangeDownload($file) {
 
$fp = @fopen($file, 'rb');
 
$size   = filesize($file); // File size
$length = $size;           // Content length
$start  = 0;               // Start byte
$end    = $size - 1;       // End byte
// Now that we've gotten so far without errors we send the accept range header
/* At the moment we only support single ranges.
* Multiple ranges requires some more work to ensure it works correctly
* and comply with the spesifications: http://www.w3.org/Protocols/rfc2616/rfc2616-sec19.html#sec19.2
*
* Multirange support annouces itself with:
* header('Accept-Ranges: bytes');
*
* Multirange content must be sent with multipart/byteranges mediatype,
* (mediatype = mimetype)
* as well as a boundry header to indicate the various chunks of data.
*/
header("Accept-Ranges: 0-$length");
// header('Accept-Ranges: bytes');
// multipart/byteranges
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec19.html#sec19.2
if (isset($_SERVER['HTTP_RANGE'])) {
 
$c_start = $start;
$c_end   = $end;
// Extract the range string
list(, $range) = explode('=', $_SERVER['HTTP_RANGE'], 2);
// Make sure the client hasn't sent us a multibyte range
if (strpos($range, ',') !== false) {
 
// (?) Shoud this be issued here, or should the first
// range be used? Or should the header be ignored and
// we output the whole content?
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes $start-$end/$size");
// (?) Echo some info to the client?
exit;
}
// If the range starts with an '-' we start from the beginning
// If not, we forward the file pointer
// And make sure to get the end byte if spesified
if ($range == '-') {
 
// The n-number of the last bytes is requested
$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] : $size;
}
/* Check the range and make sure it's treated according to the specs.
* http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html
*/
// End bytes can not be larger than $end.
$c_end = ($c_end > $end) ? $end : $c_end;
// Validate the requested range and return an error if it's not correct.
if ($c_start > $c_end || $c_start > $size - 1 || $c_end >= $size) {
 
header('HTTP/1.1 416 Requested Range Not Satisfiable');
header("Content-Range: bytes $start-$end/$size");
// (?) Echo some info to the client?
exit;
}
$start  = $c_start;
$end    = $c_end;
$length = $end - $start + 1; // Calculate new content length
fseek($fp, $start);
header('HTTP/1.1 206 Partial Content');
}
// Notify the client the byte range we'll be outputting
header("Content-Range: bytes $start-$end/$size");
header("Content-Length: $length");
 
// Start buffered download
$buffer = 1024 * 8;
while(!feof($fp) && ($p = ftell($fp)) <= $end) {
 
if ($p + $buffer > $end) {
 
// In case we're only outputtin a chunk, make sure we don't
// read past the length
$buffer = $end - $p + 1;
}
set_time_limit(0); // Reset time limit for big files
echo fread($fp, $buffer);
flush(); // Free up memory. Otherwise large files will trigger PHP's memory limit.
}
 
fclose($fp);
 
}

Hi, i am trying to stream a video from Rackspace clould files account. I could simply get the url of the video file and stream the video using the php api they have provided. But they have provided a stream function which they suggest to be used for video streaming or for large images.

Here is the code of the api :

    /**
         * Streaming read of Object's data
         *
         * Given an open PHP resource (see PHP's fopen() method), fetch the Object's
         * data and write it to the open resource handle.  This is useful for
         * streaming an Object's content to the browser (videos, images) or for
         * fetching content to a local file.
         *
         * Pass in $hdrs array to set specific custom HTTP headers such as
         * If-Match, If-None-Match, If-Modified-Since, Range, etc.
         *
         * Example:
         * <code>
         * # ... authentication/connection/container code excluded
         * # ... see previous examples
         *
         * # Assuming this is a web script to display the README to the
         * # user's browser:
         * #
         * <?php
         * // grab README from storage system
         * //
         * $my_docs = $conn->get_container("documents");
         * $doc = $my_docs->get_object("README");
         *
         * // Hand it back to user's browser with appropriate content-type
         * //
         * header("Content-Type: " . $doc->content_type);
         * $output = fopen("php://output", "w");
         * $doc->stream($output); # stream object content to PHP's output buffer
         * fclose($output);
         * ?>
         *
         * # See read() above for a more simple example.
         * #
         * </code>
         *
         * @param resource $fp open resource for writing data to
         * @param array $hdrs user-defined headers (Range, If-Match, etc.)
         * @return string Object's data
         * @throws InvalidResponseException unexpected response
         */
        function stream(&$fp, $hdrs=array())
        {
            list($status, $reason) =
                    $this->container->cfs_http->get_object_to_stream($this,$fp,$hdrs);
            #if ($status == 401 && $this->_re_auth()) {
            #    return $this->stream($fp, $hdrs);
            #}
            if (($status < 200) || ($status > 299
                    && $status != 412 && $status != 304)) {
                throw new InvalidResponseException("Invalid response (".$status."): "
                    .$reason);
            }
            return True;
        }


Here is the sample code they shared :

    $output = fopen("test.jpg", "w");
      $pic->stream($output);
      fclose($output);


If i echo the $pic variable, it just contains the name of the file. How do i display the image and how do i use this for streaming a video? Iam very new to php, so kindly help me. Thanks.

Hi all, I've been running into some issues trying to stream .mp3 files, specifically Safari/Flash... Firefox works great. I'm about to throw in the towel on this one and try another streaming solution, so I thought I'd reach out and connect with the PHP pros here before trying something else.

Basically, the PHP streamer takes a track guid variable and token variable(MD5), looks up the field in the DB, gets the url and then proceeds to stream the file with no caching, and keeping the URL hidden from the user so they can't download it. The token variable is there to assure that the url is only used once. Once it is, the script will not allow the stream if the token/track guid combo already exists in the DB. The problem with the looping is that once that token has been used it won't stream the track, which is how it's suppose to work, sans looping. I've put an MYSQL INSERT into the code to verify that it does loop.. usually I see 3- :wtf:5 consecutive entries in the DB for that token. So Firefox does not do this.. and I gather it's something to do with how the client streams with the "readfile" function.

Pasted below is some code to show the headers and the readfile function I am using. I can post the rest of the script if need be.

//$path and $tokenApproved are variables i set earlier in the script

date_default_timezone_set('GMT');
$date = date(DATE_RFC822);
$filesize = ffilesize($path);
$shortlen = $filesize - 1;

//ffilesize() is a custom filesize function

if($tokenApproved)
{

header("Content-type: audio/mpeg");

header("Content-Length: $filesize");

header('Content-Range: bytes 0-'.$shortlen.'/'.$filesize);

header("Expires: $date");

header('Content-Disposition: filename="eztunesaudio.mp3"');

header("Cache-Control: no-store, no-cache, must-revalidate");

header("Cache-Control: post-check=0, pre-check=0", false);

readfile($path);
}

//eztunesaudio.mp3 is just a default name I give the stream

I am currently streaming my mp4 files perfectly fine using php. My issue is, how do I detect when the video is either no longer being watched, or disconnected? I need to run a function after this so that I know the video is no longer being watched for analytics. Is there a way maybe with sockets or something? I'm currently using this.

 

if (file_exists($request)) {
        $fp = @fopen($request, 'rb');
        $size = filesize($request);
        $length = $size;
        $start = 0;
        $end = $size - 1;
        header("Content-Type: video/mp4");
        header('Accept-Ranges: 0-' . $length);

        if (isset($_SERVER['HTTP_RANGE'])) {
            $c_start = $start;
            $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 ' . $start . '-' . $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] : $size);
            }

            $c_end = ($end < $c_end ? $end : $c_end);
            if (($c_end < $c_start) || (($size - 1) < $c_start) || ($size <= $c_end)) {
                header('HTTP/1.1 416 Requested Range Not Satisfiable');
                header('Content-Range: bytes ' . $start . '-' . $end . '/' . $size);
                exit();
            }

            $start = $c_start;
            $end = $c_end;
            $length = ($end - $start) + 1;
            fseek($fp, $start);
            header('HTTP/1.1 206 Partial Content');
        }

        header('Content-Range: bytes ' . $start . '-' . $end . '/' . $size);
        header('Content-Length: ' . $length);
        ob_end_flush();
        $buffer = 8192;
        $time_start = time();
        $bytes_read = 0;

        while (!feof($fp) && (($p = ftell($fp)) <= $end)) {
            $response = stream_get_line($fp, $buffer);
            echo $response;
            $bytes_read += strlen($response);

            if (30 <= time() - $time_start) {
                file_put_contents('/var/www/html/movieCon/'.$user.'_'.$token.'_'.$movie_id.'.con', time());
                $time_start = time();
                $bytes_read = 0;
            }
        }

        fclose($fp);
        exit();
    }

 

I have a website http://www.pbm-biz.com/cricket/ where I am streaming Live Cricket world cup matches. My question is that during the streaming, I would like to keep the code in PHP so that others don't copy it. I can't find any solution. Any suggestions.

Thanks,

Faisal