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  • lowest latency method to pass raw video frames from ffmpeg to gstreamer

    21 juillet 2021, par art vanderlay

    I would like to pass raw audio and video buffers from ffmpeg to gstreamer. For video a 1920x1080 25fps RGB output is what ffmpeg is producing.

    


    What is the best method to pass this from ffmpeg to gstreamer on the same hardware.

    


    The end goal is to not block either ffmpeg from outputting if gstreamer cannot take the frame and to not block gstreamer if no frames are available.

    


    For this we have looked at sockets and tcp/udp plugins. However if we get any buffering issues the gstreamer pipline will block until the buffer is clear/full.

    


    we will have multiple pairs of TX/RX running on same linux instance so stdI/O will not work.
Is there a current preferred method for this type of transfer ?

    


  • FFMpeg + Beanstalk : How to pass the processes to it or achieve the same result without using Beanstalk

    6 avril 2017, par Ilia Rostovtsev

    My problem is that FFMpeg and Mencoder are extremely resourceful and running even one process of it makes HTTPd slow down but multiple processes of (FFMPEG /Mencoder) just hang it (HTTPd) completely. I would like my conversions to be processed with Beanstalk, for example.

    My concrete question is : How to transfer my current jobs to Beanstalk ?

    I have a simple PHP code that triggers conversion :

    RunInBackground('convert.php', array($upload, $video_id), $log_path);

    Now what would Beanstalk correct code would look like so these processes would NOT start all at the same time if multiple videos are uploaded ?

    If you believe that for my needs is better to use something else but Beanstalk and you know how to implement it, I would be still happy to see it !

    Thanks in advance,
    Ilia

  • ios compile ffmpeg without ac3 support

    5 avril 2013, par resident_

    I'm making a video player for iOS Devices. I use a ffmpeg libraries to play the video files. I see the problems that have other video players in the App Store with the AC3 sound support.

    I want that my video player don't works with AC3 sound. I'm looking for arguments in the compile script ffmpeg libraries like a "—enable-gpl" and "—enable-nonfree", but not works.

    I read the licenses of ffmpeg libraries several times and I think that I don't understand well.

    Can someone explain how to do this ?

    Thanks,

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