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Autres articles (77)

  • Modifier la date de publication

    21 juin 2013, par

    Comment changer la date de publication d’un média ?
    Il faut au préalable rajouter un champ "Date de publication" dans le masque de formulaire adéquat :
    Administrer > Configuration des masques de formulaires > Sélectionner "Un média"
    Dans la rubrique "Champs à ajouter, cocher "Date de publication "
    Cliquer en bas de la page sur Enregistrer

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (5974)

  • FFMPEG Scene Detection - Trim Blank Background from Video at the Start and End

    10 juin 2014, par user3521682

    Summary :
    Need to programatically trim video when scene is not changing at the beginning & end.

    Example video : http://www.filehosting.co.nz/finished3.mp4
    (Quality is much higher in the real video)

    Background :

    Large number of videos for online store, each video begins with a blank background, then the model walks on (at a random time, few seconds), and then walks off after a random time (around 15 seconds). The end of the video is trimmed seemingly random ; could be up to 15 seconds of ’nothing’ at the end of the video.

    The camera does not move. There is no sound on the videos.
    The videos come from a camera in MOV format, sideways.

    I already have FFMPEG converting from MOV to MP4, rotating the video, adding an audio-track, and trimming the audio at the end of the video.

    Research :
    I understand that I should probably re-encode video with a very high (?) tolerance for i-frames (so that only two are made per video) and then export the times to a text file, and use the text file to cut the video (probably parse it in BASH and use that to build the FFMPEG commands).

    Does anyone have any idea how I could generate just two key-frames per video ?

    Example video : http://www.filehosting.co.nz/finished3.mp4
    (Quality is much higher in the real video)

  • Manipulating strings (file extensions) in bash using find

    26 mai 2016, par Darren Parker

    I’m having trouble manipulating strings in bash. I wish to re-write extensions.

    I have the following 2 files in a Downloads directory

    • Example 001.mkv
    • Example 002.mkv

    Using the script below I always get the same filenames returned without .mkv rewritten into .mp4.

    find /Downloads -name \*.mkv -execdir echo $(file={}; echo ${file/mkv/mp4};) \;

    I understand this isn’t all you need to re-format a file but this script is part of a larger script that is passed to FFMPEG.

    Here is the full command with FFMPEG.

    find /Downloads -name \*.mkv -execdir ffmpeg -i {} -vcodec copy -acodec copy $(file={}; echo ${file/mkv/mp4};) \;

  • ffmpeg - splitting TS file into shorter file by time

    20 janvier 2017, par Rob Eves

    I am trying to convert a very long .ts video file - into a much shorter mp4 file.

    The command I am using is :

    ffmpeg.exe -i "C:\Users\Rob\Desktop\230316.ts" -ss 00:05:08 -t 00:00:50 -c copy "C:\Users\Rob\Desktop\VideoSplitter\16.18.mp4"

    However, when running this, ffmpeg gets "stuck" and repeats the same line over and over in the terminal :

    frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/
    
frame=    0 fps=0.0 q=-1.0 size=     469kB time=00:00:50.01 bitrate=  76.8kbits/

    When I press CTRL+C to exit, I notice the new file has been created... however, only with audio and no video at all.

    Any ideas how to fix this please ? I am using the latest ffmpeg.exe.

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