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  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Librairies et binaires spécifiques au traitement vidéo et sonore

    31 janvier 2010, par

    Les logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
    Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
    Binaires complémentaires et facultatifs flvtool2 : (...)

Sur d’autres sites (7815)

  • x264 Decoding time increases with zerolatency

    13 avril 2016, par Ajay Ponna Venkatesh

    Reference - Why sliced thread affect so much on realtime encoding using ffmpeg x264 ?

    With Zerolatency / sliced-threads enabled, I am observing that the decoding time shoots up ! I am encoding on my Windows 10 laptop and streaming to Samsung S4 phone where it is decoded and rendered. If usually, decoding takes 2-3 ms, it shoots up to around 25 ms if I use sliced-threads. It is a real time streaming application so I need low latency and that’s why I enabled zerolatency. Can someone help please ?

    I am using the hardware decoder on the phone.

  • How to solve video is choppy when scrolling on android browser ?

    18 septembre 2024, par SiLeafClover

    I am currently doing video scrolly kind of things. I'm using GSAP and Scrolltrigger and sveltekit to play video on scroll. At the beginning of the implementation, the video is very laggy on scroll on all browsers and cross devices.

    


    So I do some research and found out video encoding is so important and found this ffmpeg command through codepen. ffmpeg -i originalVideo.mp4 -movflags faststart -vcodec libx264 -crf 23 -g 1 -pix_fmt yuv420p output.mp4
    
When I use the video which is exported by the above command, it works smoothly on windows, mac and ios. But I'm still having issues with my phone (Andriod). When I check the website on my phone(Android), the video is laggy/choppy on scroll but on ios, the video is fine. So may I know which options do I need to add for the video encoding to play the video smoothly on Android ?

    


  • Viewing FLV buffer as a video on react-native (Desktop streaming app)

    13 janvier 2021, par yunemregul

    I am trying to make an app to share my desktop screen with my phone. By now, I can record my desktop screen with FFmpeg on ElectronJS and can send the captured FLV buffers to my react-native client (my phone) with UDP.

    


    But the problem is I am not sure if it is possible to view my FLV buffers on react-native. I checked react-native-video but it doesn't seem to be able to do this.

    


    Here's how I capture my desktop with FFmpeg on ElectronJS.

    


      ffmpegProcess = spawn(
    ffmpeg,
    ["-probesize", "10M", "-f", "gdigrab", "-framerate", "15", "-i", "desktop", "-f", "flv", "-"],
    { stdio: "pipe" }
  );

  const stream = ffmpegProcess.stdout;

  stream.on('data', chunk => {
    udpServer.send(chunk);
  })


    


    Do you have any suggestions on this ?

    


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