Video "scrubbing" not working in Google Chrome

Hi,

does anyone else experience the same issue with video not being able to scrub forward ( to move fast through video clip by changing position in player controls) in Google Chrome?

It works in IE and Firefox but not in Chrome (but only on Dolphin site).

I am using H264 codec (it is enabled in video player settings)

Is this a bug or just a problem on our site?

Kind regards

Mayki

Since the HTML5 player which was 7.1.0.

http://www.boonex.com/forums/topic/How-to-set-up-video-streaming-like-youtube-.htm#241378

http://www.boonex.com/forums/topic/HTML5-Player-and-Chrome.htm

We've had several topics on it in the past; I guess it's just Chrome.

http://www.boonex.com/forums/topic/How-to-set-up-video-streaming-like-youtube-.htm#241725

It's kind of a mixture of how Chrome's default HTML5 player works, and how Dolphin creates the HTML5 video and audio tags for playback. To prevent unauthorized downloading of media, Dolphin uses a PHP file and hashed URL to load the video, and this doesn't play well with scrubbing when the video hasn't fully loaded in Chrome. So unless Google changes something, you'll need to edit the HTML5 code in Dolphin to use a direct link (/flash/modules/video/files/ - etc.) to the files.

 I think google will not do changes, so it would be nice Nathan if you can please tell me / us more about how to change Dolphin....

Greetings

Mayki

Please try the following and let me know about the results.

Change smartReadFile in flash/modules/global/inc/functions.inc.php file from:

function smartReadFile($location, $filename, $mimeType='application/octet-stream')
{
    ...
}

to:

function smartReadFile($sPath, $sFilename = '', $sMimeType = 'application/octet-stream', $iCacheAge = 0, $sCachePrivacy = 'public')
{
    if (!file_exists($sPath)) {
        header ("HTTP/1.0 404 Not Found");
        return  false;
    }

    $fp = @fopen($sPath, 'rb');

    $size   = filesize($sPath);
    $length = $size;
    $start  = 0;
    $end    = $size - 1;

    header('Content-type: ' . $sMimeType);
    header('Cache-Control: ' . $sCachePrivacy . ', must-revalidate, max-age=' . $iCacheAge);
    header("Accept-Ranges: 0-$length");
    if ($sFilename)
        header('Content-Disposition: inline; filename=' . $sFilename);

    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/$size");
            return false;
        }
        if ($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;
        }
        $c_end = ($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 $start-$end/$size");
            return false;
        }
        $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);


    $buffer = 1024 * 8;
    while(!feof($fp) && ($p = ftell($fp)) <= $end) {

        if ($p + $buffer > $end) {
            $buffer = $end - $p + 1;
        }
        set_time_limit(0);
        echo fread($fp, $buffer);
        flush();
    }

    fclose($fp);

    return true;
}

 Will try that today Alex, Thanks.

Seems like an error or mistype.

Parse error: syntax error, unexpected '$end' (T_VARIABLE) in /home/site/html/flash/modules/global/inc/functions.inc.php on line 358

$buffer = 1024 * 8;

    while(!feof($fp) && ($p = ftell($fp))  $end) {

            $buffer = $end - $p + 1;

        }

        set_time_limit(0);

        echo fread($fp, $buffer);

        flush();

    }

Tried and it is not working,

I mean the site at all doesn't load....

Greetings

Mayki

I've corrected the code, please could you try again?

Thank you.

Perfect! Problem resolved in my case.

AlexT, THANKS!!

 Yes, this fixed it.

Thank you person & newton27:

http://www.boonex.com/trac/dolphin/ticket/3520

Thank you AlexT,

video buffering problem in Chrome solved.

Thanks again.

Greetings
Mayki 

just curious - with this new change - does this allow persons to download the video - in our site we do not want them to download.

 Downloading or allowance is selected in the Flash settings for both audio and video files.

Not for embedded videos either.

thanks newton

Hello,

I have noticed that since upgrade to Dolphin 7.3 video scrubbing is not working again, not in Chrome, not in Firefox or IE.....

What have changed? 

Members should be able to fast move to half on near end of video or any time position  they want to play video from.... so I hope someone can tell me what to do. 

Is the ffmpeg encoding issue or something else changed ?

Kind regards

Mayki

We usually upgrade ffmpeg when new version is released, so it could potentially make some difference, but since we upgrade to the newer version the things should get better.

I've checked the latest demo and there is no such problem.

I would suggest to try clean install and/or download other ffmpeg binaries:

ffmpeg for Windows

ffmpeg for Mac OSX

ffmpeg for Linux