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    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
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  • ffmpeg can't find codec to cut 10 seconds movie

    19 novembre 2017, par Logan

    I tried to cut 10 seconds from movie and convert to MP4. But sometimes I have a error like below :

    Duration: 00:08:52.40, start: 0.000000, bitrate: 1126 kb/s
    
    Stream #0:0: Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, stereo, fltp, 96 kb/s
    
    Stream #0:1: Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p, 640x480, 1000 kb/s, SAR 1:1 DAR 4:3, 29.97 tbr, 1k tbn, 1k tbc
    
[mp4 @ 0x5614bbea1300] Could not find tag for codec wmv3 in stream #0, codec not currently supported in container
    
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argumentStream mapping:

    What does this error mean ? Should I install some extra codec ?

    My exec line looks like :

    ffmpeg -i input.wmv -ss 00:00:00 -to 0 -c copy 0:00:10 output.mp4

  • extract only a small segment in the middle of an mpeg-TS movie using gstreamer

    21 juin 2019, par user1872072

    I want to extract only a small segment in the middle of an mpeg-TS movie using gstreamer library in c.

    Using ffmpeg in a command line this can be done with following command :
    ffmpeg -ss 00:01:00 -i video.ts -to 00:02:00 -c copy -copyts cut.ts

    How can I do this using Gstreamer ?
    Please help

  • -ss in ffmpeg causes black frames

    26 avril 2016, par Demonedge

    I use ffmpeg to cut a video into clips. By this command :

    ffmpeg -ss 00:00:00 -i video.mp4 -to 00:01:00 -c copy cut.mp4

    Ffmpeg has to cut at key frames, thus when I concatenate each clip back to the entire video, there are some repeated frames at the beginning of each clip. Then I found this command :

    ffmpeg -i video.mp4 -ss 00:00:00 -to 00:01:00 -c copy cut.mp4

    By putting -i first solves the above problem, but it introduces some frozen frames when I concatenate my video clips back into the whole video. In fact, I saw it introduces some black frames at the beginning of each clip, so when I concatenate these clips back, there are frozen frames.

    So is there any way that I can cut my video into clips accurately without introducing black frames or frozen frames in ffmpeg ?

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