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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • 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 (...)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (7911)

  • Faster Thumbnail/Image Extraction from Video using FFMPEG ?

    27 août 2012, par mirroredAbstraction

    I am using this command to extract a series of images from a video to express them as a visual time-frame of the video.

    ffmpeg -i inputfile.mp4  -r  1  -t  12  image-%d.jpeg

    Most of my videos are in mp4 format. I am able to extract the images successfully but the time taken for extraction is too long.

    Is there any way I could reduce the time for image extraction ?

    EDIT : It is taking me 60 secs to get 8 thumbnails from a 15 sec long video encoded in MP4 format, I am doing this operation on my Galaxy Nexus(Android Phone) is there any way to improve the speed of operation, ideally I want it be less than  10secs.

  • Does MediaCodec truncate incoming packets for decoding ?

    15 octobre 2013, par mathieujofis

    I'm using MediaCodec to decode h264 packets that were encoded with ffmpeg. When I decode with ffmpeg, the frames display fine. However, when I decode with the MediaCodec hardware decoder I sometimes get black bars that show up in the middle of the frame. This only happens if the encoding bitrate is set high enough (say upwards of 4000000) so that any given AVPacket size becomes above 95000 or so. It seems like MediaCodec (or the underlying decoder) is truncating the frames. Unfortunately, I need the quality so the bitrate can't be turned down. I've verified that the frames aren't being truncated elsewhere, and I've tried setting MediaFormat.KEY_MAX_INPUT_SIZE to something higher.

    Has anyone ran into this issue or know of a way I can work around it ?

    I've attached an image of random pixels that I rendered in OpenGL and then decoded on my Galaxy S4.

    a busy cat

  • How can you properly fade out a video with subs and two audio streams in ffmpeg

    28 août 2022, par reikje

    I am combining a video stream, one audio stream (music), another audio stream with offset (speech) and subtitles. Now I am trying to fade out everything towards the end. I got it to work without the subtitles. Once I add the subtitles, the result no longer fades out properly. Here is what I am trying :

    


    ffmpeg -ss 00:00:00 -i galaxy.mp4 -i acoustic.m4a -itsoffset 00:00:03 -i speech.m4a -to 00:00:15 \
  -vf "fade=t=out:st=10:d=5" \
  -vf "subtitles=speech-resync.srt" \
  -af "afade=t=out:st=10:d=5" \
  -map 0:v -map 1:a -map 2:a -c:v libx264 -c:a aac output.mp4 -y


    


    If I remove the -vf "subtitle s=speech-resync.srt" argument, I get a working fade out but no subs. Ideas anyone ?

    


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