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  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • Encodage et transformation en formats lisibles sur Internet

    10 avril 2011

    MediaSPIP transforme et ré-encode les documents mis en ligne afin de les rendre lisibles sur Internet et automatiquement utilisables sans intervention du créateur de contenu.
    Les vidéos sont automatiquement encodées dans les formats supportés par HTML5 : MP4, Ogv et WebM. La version "MP4" est également utilisée pour le lecteur flash de secours nécessaire aux anciens navigateurs.
    Les documents audios sont également ré-encodés dans les deux formats utilisables par HTML5 :MP3 et Ogg. La version "MP3" (...)

  • Problèmes fréquents

    10 mars 2010, par

    PHP et safe_mode activé
    Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
    La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site

Sur d’autres sites (4311)

  • ffmpeg - Unable to record screen and speaker audio at the same time

    11 janvier 2023, par dems98

    I'm trying to record my screen and speaker audio with ffmpeg but I'm facing various problems.

    


    This is the command I'm using :

    


    ffmpeg -video_size 1920x1080 -framerate 60 -f x11grab -i :0.0 -f pulse -ac 2 -i alsa_output.pci-0000_2d_00.4.analog-stereo.monitor output.mp4


    


    but the output video is really slow and out of sync with the audio.
    
Moreover, I'm getting these warnings :

    


    [x11grab @ 0x563635302480] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
[aac @ 0x563635319f40] Queue input is backward in time04.49 bitrate= 466.9kbits/s dup=268 drop=45 speed=1.84x    
[mp4 @ 0x5636353172c0] Non-monotonous DTS in output stream 0:1; previous: 217669, current: 210387; changing to 217670. This may result in incorrect timestamps in the output file.                                                                                        


    


    When recording the screen with alsa source (microphone), the output video has no problems.

    


    How can I solve ?

    


  • Pausing a ffmpeg screen capture ?

    21 octobre 2024, par LostXOR

    I have a script to record my screen using ffmpeg :

    



    ffmpeg -video_size 1920x1080 -framerate 60 -f x11grab -i :0.0 -c:v libx264rgb -crf 0 -preset ultrafast video.mkv

    



    I tried using pkill -STOP ffmpeg to pause the recording and pkill -CONT ffmpeg to resume it. The command seems to work correctly, pausing the recording process and later resuming it. However on playback, instead of instantly cutting to when I resumed ffmpeg, the video freezes for the duration I pause ffmpeg. Is there a way I can prevent the video from freezing, and instantly cut to when I resume recording ? (I can upload a sample clip if that would help clarify something.)

    


  • FFMPEG 4 videos merge in one screen [duplicate]

    10 août 2018, par Farukh Zahoor

    This question already has an answer here :

    I found a sample that merge 2 videos on one screen

    ffmpeg.exe -i 1.mp4 -i 2.mp4 -filter_complex "[0:v]scale=iw/2:ih/2,pad=2*iw:ih[left];[1:v]scale=iw/2:ih/2[right];[left][right]overlay=main_w/2:0[out]" -map [out] -map 0:a? -map 1:a? -b:v 768k output.mp4

    I tried this command to merge 4 videos on one screen

    ffmpeg.exe -i 1.mp4 -i 2.mp4 -i 3.mp4 -i 4.mp4 -filter_complex "[0:v]scale=iw/2:ih/2,pad=2*iw:ih[upperleft];[1:v]scale=iw/2:ih/2[upperright];[2:v]scale=iw/2:ih/2,pad=2*iw:ih[lowerleft];[3:v]scale=iw/2:ih/2[lowerright];[upperleft][upperright]overlay=main_w/2:0;[lowerleft][lowerright]overlay=main_w/2:0[out]" -map [out] -map 0:a? -map 1:a? -b:v 768k output.mp4

    But this generates output similar to 1st command having 2 videos merged in one view. I need all 4 videos to be shown on one screen. Additionally I want audio of 1st video file should be used for output. Please guide

    The suggested duplicate link and examples merge videos with exact same quality and takes lot of time to generate output file. I want dimension of video should be changed to half and should quickly generate the output file. The example I shared working fine for 2 videos but not for 4 videos.

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