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    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
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  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
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  • Supporting all media types

    13 avril 2011, par

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Sur d’autres sites (11654)

  • problem in concatenating mass online video urls using ffmpeg [duplicate]

    25 mai 2021, par JohnTerry

    I want to concat n number of videos together using ffmpeg which can also have more than one codec or different resolutions.
I know how to do it with fixed number of videos but input_videos.txt can contain any unknown number of videos. I checked relative posts but they did not have a solution for my problem.

    


    the command i am using for concatenating videos is -

    


    cmd = "ffmpeg -safe 0 -f concat -protocol_whitelist file,http,https,tcp,tls,crypto -segment_time_metadata 1 -i {} -vf select=concatdec_select,scale=1280:720 -af aselect=concatdec_select,aresample=async=1 -c:v libvpx-vp9 -deadline good -cpu-used 5 -c:a libopus {}".format(input_videos.txt, output_video.webm)


    


    Is there a way to achieve the functionality i want ?

    


  • ffmpeg concat multiple videos results in audio desync [closed]

    18 décembre 2022, par ArchDoge

    I have a Folder with about 200 short clips (1-2sec each).
And i try to combine them with ffmpeg concat.

    


    for f in *.mp4 ; do echo file \'$f\' >> list.txt; done && ffmpeg -f concat -safe 0 -i list.txt -c copy stitched-video.mp4 && rm list.txt


    


    This command does fuse all the files into one, but audio isnt in sync anymore.
As i understand it this is because the files have different encodings.

    


    So i tryed to reencode all files with this :

    


    for i in *.mp4; do ffmpeg -i "$i" "${i%.*}.mkv"; done


    


    but when i combine after that i get the same audio desync.

    


    Is is possible to reencode the clips in a way that dosent make concat desync ?

    


  • Concat with short inpoint and outpoint differences leads to long still image in the final video

    11 mai 2017, par P. Dee

    I create a list.txt with inpoint and outpoint markers, that are sometimes close - down to 0.5s in difference with GoPro MP4-files.

    Then I use -y -f concat -safe 0 -i list.txt -c:v libx264 -c:a aac -af aresample=async=1 -pix_fmt yuv420p "filename.mp4".

    What happens is that the smaller the differences between inpoint and outpoint are, the longer a still image of the first video image is shown. Recently I had a 60 seconds long video and 30 seconds of it at the beginning were just the same image.

    How do I need to change my command ?

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