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  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

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  • Android Live Streaming based on javaCV + FFMpeg crashes by adding red5 link

    1er octobre 2015, par user1914692

    The Android application code is from :
    Android Live Streaming courtesy of JavaCV and FFMPEG

    It streams the live camera video from the device.

    I follow one comment’s instruction (Yoshio Numai), to use Red5 as the stream server.
    By Red5 itself, I can successfully use simpleBroadcaster and simpleSubscriber to stream and display the live camera (from the computer) steam.

    In the MainActivity.java, I change the code as below :

    private String ffmpeg_link = "rtmp://192.168.1.105/oflaDemo/red5StreamDemo";

    And I can start the app in my Android device (Nexus 4).
    after click "start", the app crash, pops out a small window, saying :
    "Unfortunately, JavaCV 0.3 Stream Test has stopped. OK."

    Once I click the OK button, I find the app is still live in the task list.

    But the same thing will happen.
    What’s wrong here ?

  • What it the expected behavior when using the input Framerate option (in FFmpeg) when the input is a real-time camera device ?

    28 août 2023, par J.M.

    As far as I know, the use of the Framerate option should be used only on an input files (like sequence of images or perhaps a video file that don't have a defined PTS).

    



    However, if I run the command below on my web-cam, the video still streams fine (at least for a few hours from what I've checked till now). Why is that still works ? Should I expect that something will get wrong ? (maybe later, after a few hours or days of streaming)

    



    ffmpeg -framerate 30 -f v4l2 -copyts -i /dev/video0 -c:v libx264 -r 30 -f mpegts udp://192.168.10.199:1234


    



    EDIT :

    



    After running some more tests, it seems that when I'm running the command like this, the steam get stuck after a few hours :

    



    ffmpeg -framerate 30 -f v4l2 -copyts -i /dev/video0 -c:v libx264 -r 30 -f mpegts udp://192.168.10.199:1234


    



    However, if I run the command like this, it runs for days :

    



    ffmpeg -r 30 -f v4l2 -copyts -i /dev/video0 -c:v libx264 -r 30 -f mpegts udp://192.168.10.199:1234


    



    But I don't understand why...

    


  • lavc/qsvenc_hevc : restore the default gop size

    11 août 2023, par Haihao Xiang
    lavc/qsvenc_hevc : restore the default gop size

    commit a3c0a3e changed the default settings and expected the runtime can
    
choose a best value. However the runtime doesn't set a valid gop size
    
for hevc encoder, hence the output steam is non-seekable, which is
    
inconvenient to user [1][2]
    

    [1] https://github.com/intel/media-driver/issues/1576
    
[2] https://ffmpeg.org/pipermail/ffmpeg-user/2023-August/056716.html
    

    Signed-off-by : Haihao Xiang <haihao.xiang@intel.com>
    • [DH] libavcodec/qsvenc_hevc.c

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