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Autres articles (58)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 est la première version de MediaSPIP stable.
    Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

Sur d’autres sites (9203)

  • Add subtitles and storyboards to mpeg dash [closed]

    19 janvier, par ahamid555

    I need to stream a youtube video in my website and I need to do it not using the embed mode. I tried several steps and I failed to make it work completely. Please provide me any solutions for each step if you know.

    


      

    1. I tried to download the video in mpeg-dash format (with manifest and all chunk files) and I failed. Is it possible at first place ?

      2. 


    2. I downloaded the video using ytdlp and I transcoded the movie to mpeg-dash format using ffmpeg, but I couldn't add subtitles and storyboards during the transcode, because the vvt subtitles are not compatible with mp4 containers.

      3. 


    3. I decided to transcode the video first and then add the subtitles and storyboards using other tools (MP4Box) which I failed, too. Do you know any tool that does it as I want ?

      4. 


    


  • Youtube DASH stream through to iOS format

    29 juillet 2014, par viperfx

    I have a stream link of a DASH codec format audio file using youtube-dl. It plays fine in the browser but on iOS the DASH codec is not supported. I am wondering how I can use ffmpeg to transcode the HTTPS stream live and then resend it out an AAC encoded m4a file or something that the iOS SDK supports through streaming - mp3 also works. I think using something such as nginx as the middleware inbetween would be a good idea. I can use python app to receive the request /videoID, it would grab the stream link and transcode it live feed it to nginx which would serve the correctly transcoded format back to the iOS app.

    Does anyone have any suggestions/ideas on how to achieve this ? I am stuck on the details on the ffmpeg bit.

  • Generate single MPEG-Dash segment with ffmpeg

    25 août 2021, par woubuc

    I've been trying to implement a Plex-like video player that transcodes an arbitrary video file on-demand, and plays it with MPEG-Dash on a webpage. I was able to implement the client side player with the dash.js reference implementation, so it will dynamically request segments from the server (using SegmentTemplate in the mpd file).

    



    But I'm having some problems generating these chunks in real-time. Ffmpeg lets me set -ss and -t to define the boundaries of the segment I need, but they don't play properly in the player because they're "full" video files rather than Dash segments.

    



    So how do I adjust my ffmpeg command to transcode just the part I need as a Dash segment, without having to generate the segments for the entire video file in advance ?

    



    The input video file can be any format, so it cannot be assumed it's in an mp4/dash-compatible codec. So transcoding (with ffmpeg or similar tool) is required.

    



    My current ffmpeg command looks like this (after lots of trying) :

    



    ffmpeg -ss 10 -t 5 -i video.mkv -f mp4 -c:a aac -c:v h264 -copyts -movflags empty_moov+frag_keyframe temp/segment.mp4


    



    The client-side player should be able to buffer the next X segments, and the user should be able to view the current position on the duration bar and seek to a different position. So treating it as a live stream isn't an option.

    


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