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  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • 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" (...)

  • 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 (10496)

  • Correct way to dump yuv values after avcodec_decode_video2

    27 juin 2017, par Peter

    I am decoding H.265 raw data :

     avcodec_decode_video2(decoderCtx, pictYUV, &gotPicture, &packet)

    After the call, the value for pictYUV->format is AV_PIX_FMT_YUV420P as expected.

    I dump raw yuv values to a file as follows :

    fwrite(pictYUV->data[0], 1, w*h, f);
    
fwrite(pictYUV->data[2], 1, w*h/4, f);
    
fwrite(pictYUV->data[1], 1, w*h/4, f);

    For an input size of 640x480, when the file is viewed (using ImageMagick display utility), the image is what was expected.

    However, for an input size of 864x480, the image appears to be corrupted.

    What is interesting is if I run pictYUV through sws_scale, and dump the resulting yuv output, the image appears to be fine.

    sws_scale(swsCtx, pictYUV->data, pictYUV->linesize, 0, pictYUV->height,
    
  pictNewYUV->data, pictNewYUV->linesize);

    All I need is yuv data. I am hoping I can avoid the extra call to sws_scale. Wondering what is it that I am missing. Regards.

  • Random error "Failed to update header with correct duration."

    22 juin 2017, par RMS

    I have a bash script that triggers a ffmpeg command, the loop strangely doesn’t start again after the error below randomly occurs :

    Failed to update header with correct duration.
    
Failed to update header with correct filesize.

    I looked up everywhere, no luck. I dont mind the error, just why won’t the bash loop work correctly and relaunch the command ?

    I am running a nginx server where I push the stream to, here is the script :

    #!/bin/bash
    

    
until ffmpeg -thread_queue_size 512 -re -I "external URL" -vcodec copy -vprofile baseline -acodec aac -strict -2 -f flv "nginx URL"; do
    
    echo "restarting ffmpeg command"
    
    sleep 1
    
done

    Thank you !

  • Which is the correct key frame intervall settings for ffmpeg stream to Periscope

    28 septembre 2021, par Memo Can

    I will stream to Periscope with ffmpeg.
The requirements of Periscope are :

    



    •Framerate : 30fps
•Keyframe interval : every 2 seconds (OBS) or Keyframe every 45 frames (Wirecast)

    



    I have follew ffmpeg command line :

    



    ffmpeg -i INPUT -deinterlace -c:v libx264 -pix_fmt yuv420p -s 960x540 -preset superfast -vb 1200k -maxrate 1200k -r 30  -bufsize 8000k  -c:a aac -b:a 96k -ar 44100 -ac 2 -f flv rtmp://de.pscp.tv:80/xxxxxxxxx


    



    How can i set

    



    Keyframe interval: every 2 seconds (OBS) or Keyframe every 45 frames (Wirecast)  


    



    on this command line

    


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