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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • 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" (...)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

Sur d’autres sites (10545)

  • Creating MPEG4 video file with Python from raw frames

    11 août 2016, par Mikko Ohtamaa

    I have a raw video frame source which I can access in Python. I’d like to create a MPEG4 video out of this, with MP3 background music.

    What kind of tools and libraries are available in Python for such a task ? Preferably I’d like to have an API for which I can feed output filename and then individual frames as 24 bit raw images.

  • Gstreamer : Hauppauge HD PVR and Multi-video file output

    7 juin 2014, par user3716978

    I have very specific requirements for a Gstreamer pipeline that I can’t seem to create. I’m running Linux Mint Mate 14 (Nadia).

    I have an HD PVR, which records in MPEG TS. It presents, as its interface, a V4L2 device at /dev/video0. What I need is to somehow have it output the captured video to multiple files. That is, like dvgrab’s autosplit, it would output, say, 1800 frames, then create a new output file, then capture another 1800, and on and on.

    I’ve tried numerous methods. First, using multifilesink with the keyframe next-file option does what I want, but it doesn’t seem to add stream headers to the segment files, so that they cannot play properly and/or are missing their initial keyframe.

    I’ve tried limiting each individual capture length using num-buffers, and just restarting the capture after the previous one ends. This works for maybe 30 or 40 files but all the switching on and off eventually locks up the HD PVR, and it has to be power-cycled.

    I could also have it dump images to the disk and work with the individual frames, but this is very slow with MPEG TS since it has to demux, decode, and reencode every frame. It eats up 100% cpu and drops about 60% of the frames on my computer.

    ffmpeg doesn’t work, because the HD PVR driver doesn’t support ioctl. I can’t seem to get mencoder to stream it this way either, but maybe it’s possible ?

    What I need is to :

    • Have a single capture stream, to avoid pissing off the HD PVR
    • Have it split the stream into multiple files which can be individually analyzed
    • Have those multiple files be valid videos
    • Not eat up 100% of my CPU (although high utilization is ok, it needs to run at full speed). Since the stream is 1920x1080x60fps, anything to do with reencoding won’t work. It pretty much needs to be a stream copy.

    Thank you

  • Export frames/images from compressed video

    24 mars 2015, par Jan Viehweger

    I have a compressed movie (mp4) and I want to extract every single frame / image from it. I know that each individual frame of the video only contains the changed pixels regarding to the last keyframe, because of the video compression. But that is exactly what I want. I just want to see those differences. I want to visualy see how the compressor works.

    Is there some tool like imagemagick out there what can things like that ?

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