Recherche avancée

Médias (0)

Mot : - Tags -/utilisateurs

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (100)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • 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 (6877)

  • ffmpeg : combine two or three audios into one by lowering the volume of the other

    15 juin 2016, par somya bhargava

    Want to combine some audio files eg :

    1) one long audio file which will act as a background audio
    2) some audio files which will be replaced at specific intervals
    like at 10 sec of the first one

    So final output required is
    audio-1 60 sec
    audio-2 starting from 10 sec to 20 sec with audio-1 at 0.1 volume

  • Append two videos without duplicating FFMPEG

    10 septembre 2021, par Hasindu Lanka

    Let's say we have 2 video files (X,Y) in the same format, codec and dimensions.

    


    X is a longer video with several gigabytes in size. Y is a short 10 second video. I want to append Y to the end of X without creating another copy of X (Because it's big in size)

    


    I have to repeat this process for hours with many 10 second videos arriving one after another.

    


    Currently, I'm concatenating files using ffmpeg.

    


    ffmpeg -f concat -safe 0 -i chunk.list -c copy final-video.mkv

    


    chunk.list contains file names of X and several 10 second videos. After this, X will be deleted and replaced by final-video.mkv. Then, repeat.

    


    But this needs twice the storage capacity and I/O operations. How to do this without creating duplicates ?

    


    It's okay to duplicate these 10 second videos. But duplicating that bigger file X really hurts performance.

    


    Additional info :

    


    All these videos will be encoded with H264, H265, VP8 or VP9 and contained in MKV or MP4 as they are codec copy friendly. Only one of these formats will be used.

    


    This is for a special case screen recorder that's supposed to run on cloud and preemptive remote desktops (Linux).
HTML/JS browser front-end captures the screen and sends to the back-end (Golang) as chunks through HTTP. Network route is undefined and unreliable as there can be firewalls/proxies between the front-end and the back-end. Therefore, we can't use connections like UDP. So the only option is to send video chunks using HTTP.

    


    It's FOSS on https://github.com/HasinduLanka/screencorder

    


  • ffmpeg set data stream codec tag when copying

    19 mars 2021, par user972014

    I use ffmpeg to copy a data stream from one file to the other using -c copy

    


    The problem is that it causes the output file to have no codec tag string. How can I set it ?

    


    The name of the original stream was :

    


    Stream #0:3(eng): Data: none (gpmd / 0x646D7067), 96 kb/s (default)
    Metadata:
      creation_time   : 2020-09-08 16:35:49
      handler_name    : GoPro MET


    


    While for the output file I get it is :

    


    Stream #0:2[0x102]: Data: bin_data ([6][0][0][0] / 0x0006)


    


    I'm using a commandline similar to that :

    


    ffmpeg -i video.mp4 -map 0:3 -c copy -metadata:s:d codec_tag=xxxx -vcodec libx264 converted4.ts


    


    I also tried handler=... handler_name=...

    


Navigation