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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Les images

    15 mai 2013

  • Taille des images et des logos définissables

    9 février 2011, par

    Dans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
    Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...)

Sur d’autres sites (7676)

  • Create muted video and black screen video with FFmpeg

    2 mars 2021, par user2685832

    I'm trying to use FFmpeg to generate the following from a local mp4 file :

    



      

    • A copy of the original video with no audio

      • 


    • A copy of the original video with audio but without visuals (a black screen instead). This file also needs to be in mp4 format.

      • 


    



    After reading through the documentation I am struggling to get the terminal commands right. To remove the audio I have tried this command without any success :

    



    ffmpeg -i file.mp4 -map 0:0 -map 0:2 -acodec copy -vcodec copy


    



    Could anyone guide me towards how to accomplish this ?

    


  • ffmpeg not streaming properly [on hold]

    1er avril 2017, par Asad Ali

    I am using this command to capture video from my webcam and then sending it via udp :

    ffmpeg -f v4l2 -rtbufsize 500M -r 25 -i /dev/video0 -c:v libx265 -vb 1050000 -maxrate 1050000 -bufsize 0 -preset ultrafast -x265-params "fps=15" -c:a aac -b:a 128k -f mpegts udp://127.0.0.1:1234

    And then at the same time I am viewing that video in another terminal :

    ffplay -fflags nobuffer -i udp://127.0.0.1:1234

    The results are pretty bad with 4 seconds lag.

    Errors on ffmplay are following :

    • invalid NAL unit xx, skipping error parsing NAL unit

    I have read streaming documentation of ffmpeg but to no avail.
    What changes should I made in my command ?

  • FFpmeg attaching album cover to the audio is not working with Rails

    10 avril 2015, par Shilpi Agrawal

    I have some audio files of web format and i want to attach some album cover to those files. My native ffmpeg command works fine in terminal.

    ffmpeg -i audio.webm -i cover.jpg -map 0:0 -map 1:0 -metadata:s:v title="Album cover" -metadata:s:v comment="Cover (Front)" out.mp3

    But when i run the same command in my rails app, its telling me this error :
    Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument.

    Any suggestions ?

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