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  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

  • Le plugin : Podcasts.

    14 juillet 2010, par

    Le problème du podcasting est à nouveau un problème révélateur de la normalisation des transports de données sur Internet.
    Deux formats intéressants existent : Celui développé par Apple, très axé sur l’utilisation d’iTunes dont la SPEC est ici ; Le format "Media RSS Module" qui est plus "libre" notamment soutenu par Yahoo et le logiciel Miro ;
    Types de fichiers supportés dans les flux
    Le format d’Apple n’autorise que les formats suivants dans ses flux : .mp3 audio/mpeg .m4a audio/x-m4a .mp4 (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

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  • Requested MovieWriter (ffmpeg) not available

    17 juillet 2021, par euler

    Im trying to make animations in jupyter notebook, but the system needs the package ffmpeg for making mp4 arxives. What happens is that I'm working in a virtual space, and I don't have permission to make sudo install ffmpeg instead of this I think the only alternative that I have is pip install ffmpeg. But when I make this, the error stills the same.

    


    I also tried to force the location of the ffmpeg package but also doesn't work.

    


    plt.rcParams['animation.ffmpeg_path'] = ".local/lib/python3.7/site-packages/ffmpeg"

    


    If someone have any solution or intuition to solve the problem in this case it will be very helpful.

    


  • How to stream from ffmpeg to multiple udp clients ?

    24 mars 2021, par SelectedVertex

    Hello I'm streaming my own virtual camera to a localhost using ffmpeg using :

    


    ffmpeg -re -f dshow -i video="VTX_VirtualCam":audio="VTX_VirtualMic" -preset ultrafast -tune zerolatency -b 100000k -f mpegts udp://127.0.0.1:22588 -fflags nobuffer


    


    It works fine but I only can connect to it from single client at the same time but I want to connect from different and multiple clients.

    


    If I be connected and use another client it throws :

    


    


    bind failed : Error number -10048 occurred

    


    


    How can I do this ?
I have c++/c# programming skills as well if needed.

    


  • ffmpeg : Continuous streaming plus recording at random time

    21 juin 2014, par Ralf Anderson

    It’s possible to stream and record the same input at the same time with ffmpeg. What I want to do though, is only start (and stop) recording at some random point later.

    Is it possible to somehow tell the active ffmpeg process (which is already streaming) to also start recording ?
    My first alternative was to simply start another ffmpeg process just to record, but the source input will be blocked by the first ffmpeg process streaming it and the stream will be blocked by the viewer displaying the stream on screen, so I can’t access anything to record. Can I change something so the stream/source input is not reserved for just one receiver ?

    In my concrete scenario, the source input is a webcam, which I want to continuously display plus be able to record at user-driven time. I stream the webcam using ffmpeg via udp to the localhost and can view it with a suitable player. I just can’t record it while also viewing and vice versa.

    I also tried the "Tee Muxer", which can generate multiple outputs with the same ffmpeg instance. I streamed it to the localhost on different ports, one to view and one to record.

    ffmpeg.exe -f dshow -i video="ManyCam Virtual Webcam" -map 0 -vcodec h264 -r 25 -f tee "[f=mpegts]udp://127.0.0.1:33333/|[f=mpegts]udp://127.0.0.1:33334/"

    This works fine, except for the delay of about 500ms, which I only get when I stream, not when I access the Webcam directly with ffplay e.g.. I was expecting no delay at all, since it’s all local, but I suppose this comes from the encoding ? I’ve tried streaming the raw video (setting -vcodec rawvideo), but I can neither view it with ffplay nor record it. Are there some special parameters needed for rawvideo ? After all, the input for the stream is rawvideo too, according to ffmpeg.

    I have not yet looked at ffserver, but I assume it would be no different to generating multiple outputs with tee muxer in my use case ?

    If I somehow could be able to display/record the stream generated by

    ffmpeg.exe -f dshow -i video="ManyCam Virtual Webcam" -map 0 -vcodec rawvideo -r 25 -f tee "[f=mpegts]udp://127.0.0.1:33333/|[f=mpegts]udp://127.0.0.1:33334/"

    then that would already suffice. Or changing the encoding in such a way that no compression is done at all should work just as well (if that’s causing the delay).

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