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Autres articles (51)

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (3924)

  • Using ffmpeg in asp.net

    23 avril 2014, par pessi

    I needed a audio conversion library. After already pulling my hair..I have given up on the fact that there is no such audio library out there..every library out there has some or the other problem.

    The only option left is ffmpeg which is the best but unfortunately you cannot use it in asp.net (not directly I mean). Every user on the website that will convert a file ; will launch an exe ? ; I think I will hit the server memory max soon.

    Bottom Line : I will try using ffmpeg.exe and see how many users it can support simultaneously.

    I went to the ffmpeg website and in the windows download section I found 3 different version ; static, shared and dev.

    Does any one know which would be the best ? All packed in one exe (static) or dll’s separely and exe small, wrt using it in asp.net ?

    PS : any one has a good library out there..would be great if you can share.

    Static builds provide one self-contained .exe file for each program (ffmpeg, ffprobe, ffplay).

    Shared builds provide each library as a separate .dll file (avcodec, avdevice, avfilter, etc.), and .exe files that depend on those libraries for each program

    Dev packages provide the headers and .lib/.dll.a files required to use the .dll files in other programs.

  • Adding transparency to a video from black and white (and gray) alpha information video images

    3 juillet 2018, par Jan F.

    I’d like to create a video with transparency (and semi transparency) in android. The images of the source video are split into two images, the top one with color information (looks like the normal video image), the bottom one with alpha information (the same shapes but only in black and white and gray, black means transparent).

    This is the solution for iOS :
    https://medium.com/@quentinfasquel/ios-transparent-video-with-coreimage-52cfb2544d54

    What would be the best way to to this in android ?

    Can this be solved with javacv, FFmpegFrameGrabber, FFmpegFrameFilter etc.?

    Or better with OpenGL ES and shaders ?

    Are there any samples ?

    Thanks !

  • Searching for a ffmpeg padding line which don't decrease the quality of the video

    17 février 2024, par Season

    I'm trying to convert a 3840x1606 video into a 16:9 aspect ratio video with padding in top and bottom. Because casting it in tv makes it streachy. OR if you know any android app which takes care of that I will really appreciate that. I have a Samsung tv btw.

    


    I tried this

    


    ffmpeg -i input.mkv -vf pad="width=max(iw\,ih*(16/9)):height=ow/(16/9):x=(ow-iw)/2:y=(oh-ih)/2" output.mkv


    


    This do the padding but the input file was 63 MB and output was around 17MB. until now only this line have worked.

    


    Input video details : Video : hevc (Main 10), yuv420p10le(tv, bt2020nc/bt2020/smpte2084), 3840x1606 [SAR 1:1 DAR 1920:803], 23.98 fps, 23.98 tbr, 1k tbn (default)

    


    Output video details : Video : h264 (High 10), yuv420p10le(tv, bt2020nc/bt2020/smpte2084, progressive), 3840x2160 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn (default)

    


    And is there a way to do padding without encoding ?(is it even possible) or A way which takes less time.

    


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