Recherche avancée

Médias (1)

Mot : - Tags -/censure

Autres articles (57)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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 (...)

  • 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 (11951)

  • (no accepted answer) How to merge 2 overlapping videos into one video using ffmpeg or opencv ?

    3 janvier 2021, par Muhammad Umer

    Merging two videos is easy, been answered couple of times. What I have is multiple overlapping videos. A video might have overlaps with video before it. Meaning if video 1 covers 1-5 timeline then video 2 may overlap 1, and cover 3 to 8. Merging them as is would result in 1-5|3-8, when i need 1-8 only.

    



    Videos are alphabetically sorted.

    



    My general idea of solution is...

    



      

    • grab last frame of the video

      • 


    • if it's first video continue

      • 


    • if it's not first video, ie. 2nd, search for frame saved in previous steps frame by frame

      • 


    • if it reaches to last frame of current video then there is no overlap continue

      • 


    • if it founds a frame then clip 2nd video up to that frame inclusive and then go to next frame

      • 


    • once all videos have been analyzed, merge them into one video.

      • 


    



    I need to translate this to ffmpeg commands. Or opencv if that's a better tool.

    



    If there is better way of doing that, I'm interested in that too.

    


  • Comparison of two ffmpeg commands for video segment

    14 juillet 2021, par Anas Ansari

    I have two commands for making video segments in android ffmpeg

    


      

    • -ss startTime -i inputVideo -f segment -segment_time segmentDuration -reset_timestamps 1 -vcodec copy -b:v2 097152 -b:a 48000 -ac 2 -ar 22050 outputPath

      • 


    • -ss startTime -i inputVideo -f segment -segment_time segmentDuration -reset_timestamps 1 outputPath

      • 


    


    I have tried them both and noticed that first command is very very fast than second

    


    Since I am new to ffmpeg , i really don't know them meaning of every argument in these commands

    


    Can anyone plz explain me why first command is better and will it cause any errors in future

    


  • cbs_sei : Remove restrictions on MDCV values

    1er janvier 2021, par Mark Thompson
    cbs_sei : Remove restrictions on MDCV values

    Since this was originally written the standards have changed to allow
    
arbitrary values here, but leaves their meaning unspecified.
    • [DH] libavcodec/cbs_sei_syntax_template.c

Navigation