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Autres articles (23)

  • 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 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

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (5979)

  • FFMPEG show an Image with specific duration in filter_complex chain

    26 juin 2021, par Digerkam

    I have trouble with showing images with a specific duration in filter_complex.

    


    I have to use filter_complex, and getting error : "No such filter : 'duration'"

    


    So which filter do I need to use ?

    


    ffmpeg \
    -i "music.mp3" \
    -i "01.mp4" \
    -i "02.jpg" \
    -i "03.mp4" \
    -i "04.jpg" \
    -i "05.mp4" \
    -filter_complex " \
        [1:v]scale=300:400,trim=0:2,setpts=PTS-STARTPTS[v1]; \
        // Correct filter needed here: \
        [2:v]scale=300:400,duration=2,setpts=PTS-STARTPTS[v2]; \
        [3:v]scale=300:400,trim=4:6,setpts=PTS-STARTPTS[v3]; \
        // And here:
        [4:v]scale=300:400,duration=2,setpts=PTS-STARTPTS[v4]; \
        [5:v]scale=300:400,trim=8:10,setpts=PTS-STARTPTS[v5]; \
        [v1][v2][v3][v4][v5]concat=n=5:v=1:a=0[out] \
    " \
    -map "[out]" -map "0:a" -t "12" -c:v "libx264" -pix_fmt "yuv420p" -s "300x400" output.mp4


    


  • Merge videos with different start times and show them on a grid

    1er août 2017, par shamaleyte

    I have multiple video files of a conference call. However, each participant joined the call at a different time, which resulted in the fact that each video file has a different start time offset values.

    Video   Start Time
    
------------------
    
Video1  00:00
    
Video2  00:10
    
Video3  01:40

    My purpose is to play back this conference. However, I did not record the conference as 1 video, it is recorded with multiple video files, instead.
    How do I stitch these videos ?

    There is also a paid solution to merge video fragments to a single clip – this will make the client-side much simpler. But can I do it for free ?

    The expected outcome is to have one video showing three videos on a grid.
    When ffmpeg stitches the videos, it should consider their start time values properly so that the videos are played accordingly.

  • Hide ffplay window and just show input video [closed]

    5 mai 2023, par Scott Wilkerson

    I'm using FFMPEG/FFPLAY to display video on a monitor from a Decklink card. After much research I finally found a good command to get the video displayed correctly, and at a specific location in the monitor with no border :

    


    ffplay -f dshow -video_size 1280x720 -left 631 -top 19 -rtbufsize 702000k -framerate 59.94 -i video="Decklink Video Capture":audio="Decklink Audio Capture" -threads 2 -noborder

    


    The problem is I need to ONLY display the borderless input video. NOT ffplay running. I figured out I could use -nostats to get rid of the video statistics, but not the command prompt window.

    


    -nostdin DOESN'T WORK
-nodisp HIDES THE INPUT VIDEO, not the command prompt window.

    


    Thanks in advance !

    


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