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Autres articles (52)

  • 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" (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Possibilité de déploiement en ferme

    12 avril 2011, par

    MediaSPIP peut être installé comme une ferme, avec un seul "noyau" hébergé sur un serveur dédié et utilisé par une multitude de sites différents.
    Cela permet, par exemple : de pouvoir partager les frais de mise en œuvre entre plusieurs projets / individus ; de pouvoir déployer rapidement une multitude de sites uniques ; d’éviter d’avoir à mettre l’ensemble des créations dans un fourre-tout numérique comme c’est le cas pour les grandes plate-formes tout public disséminées sur le (...)

Sur d’autres sites (5403)

  • how to trim video in h264 format using ffmpeg while preserving quality ?

    16 décembre 2020, par prisonmike11

    I'm new to ffmpeg,

    


    I'm trimming a small clip from a bluray H264 video by providing start and end duration.

    


    I tried :

    


    ffmpeg -ss 00:01:00 -i input.mp4 -to 00:02:00 -c copy output.mp4


    


    but this results in stuttering issues in start of the video. The audio and video also don't match.

    


    I tried using -c libx264 but this is taking too long and the output video has much lower bit rate.

    


    My goal is to trim as fast as possible while preserving quality. I don't care about the frame accuracy of the trim. I plan on uploading the output to youtube.

    


    what flags should I use ?

    


  • how to trim video in h264 format using ffmpeg while preserving quality ?

    16 décembre 2020, par prisonmike11

    I'm new to ffmpeg,

    


    I'm trimming a small clip from a bluray H264 video by providing start and end duration.

    


    I tried :

    


    ffmpeg -ss 00:01:00 -i input.mp4 -to 00:02:00 -c copy output.mp4


    


    but this results in stuttering issues in start of the video. The audio and video also don't match.

    


    I tried using -c libx264 but this is taking too long and the output video has much lower bit rate.

    


    My goal is to trim as fast as possible while preserving quality. I don't care about the frame accuracy of the trim. I plan on uploading the output to youtube.

    


    what flags should I use ?

    


  • ffmpeg display only video in Android

    19 février 2014, par Whoami

    I am Writing video player in android. So far i could able to capture the frames, with the help of av_read_frame and avcodec_decode_video2, and updating to SDL2.0. I have followed dranger tutorial02.c http://dranger.com/ffmpeg/ .

    Sudo Code is :

     while (1)
    

    
   {
    
         1. Read packet
    
         2. check if video frame; if not Go to Step 3.
    
                2.1  if video frame, then update with SDL_UpdateYUVTexture,
    
         3. Handle SDL Event
    
         4. Clear the Renderer.
    
         5. Present Renderer. 
    
   }

    I wonder, do i need to take care of synchronization of video, dts/pts calculation while i need only to display video ?

    This scenario works well in the samsung, but not in other mobiles.

    What woud be your advice ?

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