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Autres articles (53)

  • Encodage et transformation en formats lisibles sur Internet

    10 avril 2011

    MediaSPIP transforme et ré-encode les documents mis en ligne afin de les rendre lisibles sur Internet et automatiquement utilisables sans intervention du créateur de contenu.
    Les vidéos sont automatiquement encodées dans les formats supportés par HTML5 : MP4, Ogv et WebM. La version "MP4" est également utilisée pour le lecteur flash de secours nécessaire aux anciens navigateurs.
    Les documents audios sont également ré-encodés dans les deux formats utilisables par HTML5 :MP3 et Ogg. La version "MP3" (...)

  • 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 (...)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

Sur d’autres sites (5777)

  • ffmpeg video splitting less then 10 sec gives black clip - ubuntu 18.04 LTS

    9 juillet 2020, par vipin

    I am using FFmpeg version 4.3-2 18.04.york0 on AWS EC2 server for video splitting, while I split video less then 11 seconds the output.mp4 gives a blank video. I have tried the same thing with my local MAC and Ubuntu 19 but it works fine.

    


    ffmpeg -i input.mp4 -ss 00:01:10 -to 00:01:15 -c:v copy -c:a copy output.mp4


    


  • Extract part of a video using ffmpeg_extract_subclip - black frames

    20 août 2020, par albert1905

    I'm trying to use : "ffmpeg_extract_subclip" for extracting part of a video.

    


    And I'm facing a few problems :

    


    1.when I'm cutting a small video (1-3seconds) I'm getting black frames, only audio is working.
2.when I'm cutting longer video, the output video is stuck 2-3 seconds before the end.

    


    This is my simple code :

    


    from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip

input_video_path = 'myPath/vid1.mp4'
output_video_path = 'myPath/output/vid1.mp4'
t1 = 6.5
t2 = 16    # random numbers, my last attempt..
    
ffmpeg_extract_subclip(input_video_path, t1, t2, targetname=output_video_path)


    


    I tried to look inside the code :
ffmpeg_extract_subclip Function

    


    But still couldn't understand what's wrong.. :(

    


    I'm still trying, and if anyone knows the problem or have a different approach, that will be amazing.

    


    Thanks a lot for your help !

    


  • Resize image by adding extra black pixels at borders

    25 juin 2020, par Sudheer Kumar

    I would like to resize an image(lower resolution to higher resolution) by adding black pixels at the borders. I have raw image data available in YUV420/RGB format. I want to add back pixels to this raw image data and change its resolution to desired state. Example before to after. I have all my code in CPP, and i am also using ffmpeg libraries to scale/convert data format.

    


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