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Autres articles (11)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • 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 (...)

  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)

Sur d’autres sites (5731)

  • How to encode image to h264 in android ?

    12 novembre 2015, par James.D

    For some reason, I want to encode image frame to h264 in android. In order to get a better performance, I used ffmpeg with android ndk to encode image. I’m so strange that it’s easy to decode h264 frame to image while it’s so hard to encode image to h264 frame. When I try to use avcodec_encode_video2 function the eclipse always shows a message
    An internal error occurred during : "Launching MyApp".
    java.lang.NullPointerException
    which make me crazy.
    I’m also so angry that the android ndk do not show any message useful to tell me what happen. Can anyone help me ?

  • FFmpeg : Record the screen but only remember the last 5 minutes ?

    24 juin 2014, par simonwjackson

    I am using Ffmpeg to continuously record the video the screen on my PC. However, I only ever need the last 5 minutes of the video.

    Yes, I could edit the video afterwards. But these recording sessions could go on for several hours and take up A LOT of hard disk space.

    Is there a way to only remember the last 5 minutes of a video capture and forget everything previous before the file is saved ? (Kind of like a TiVO would do)

    I’ve found

    -fs limit_size

    and

    -timelimit duration

    ..but these seem to stop once the limit has been reached. Maybe there is an inversed switch ? Like to only keep the last 1000000 bytes or something.

  • FFmpeg : Record the screen but only remember the last 5 minutes ?

    18 février 2023, par simonwjackson

    I am using Ffmpeg to continuously record the video the screen on my PC. However, I only ever need the last 5 minutes of the video.

    



    Yes, I could edit the video afterwards. But these recording sessions could go on for several hours and take up A LOT of hard disk space.

    



    Is there a way to only remember the last 5 minutes of a video capture and forget everything previous before the file is saved ? (Kind of like a TiVO would do)

    



    I've found

    



    -fs limit_size


    



    and

    



    -timelimit duration


    



    ..but these seem to stop once the limit has been reached. Maybe there is an inversed switch ? Like to only keep the last 1000000 bytes or something.

    


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