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Autres articles (54)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • Submit enhancements and plugins

    13 avril 2011

    If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
    You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.

Sur d’autres sites (6692)

  • Remove watermark by merging two videos

    29 septembre 2019, par LoStack

    I have actually two videos, one in high quality but with watermark and the other in poor quality without watermark. They are not synchronized.

    I would like to do something like the removelogo filter of ffmpeg but instead to simply interpolate like removelogo I would like to extract a part of a frame of the poor quality video to put it on the highest quality video with a mask to hide the watermark.

    Unfortunately the two videos are not synchronized and I would like to synchronize with the audio stream.

    Is it possible to do that with ffmpeg ?
    Thank you very much.

  • doc/examples/mux : remove nop

    30 juin 2024, par Michael Niedermayer
    doc/examples/mux : remove nop

    Found through code review related to CID1604493 Overflowed constant
    

    Sponsored-by : Sovereign Tech Fund
    
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] doc/examples/mux.c

  • Input seeking for frame at specified timestamp with Py-AV

    9 décembre 2019, par neonScarecrow

    I have a project already using Py-AV and am trying to replicate a specific ffmpeg command. The goal is to get a frame roughly around the specified timestamp.

    Here’s the ffmpeg commmand :
    https://trac.ffmpeg.org/wiki/Seeking

    ffmpeg -ss 14 -i https://some_url.mp4 -frames:v 1 frame_at_14_seconds.jpg

    Here’s my code :

        #return one frame around 14 seconds into the movie
    
    target_sec = 14 
    
    container = av.open('https://some_url.mp4', 'r')
    
    container.streams.video[0].thread_type = 'AUTO'
    
    video_stream = next(s for s in container.streams if s.type == 'video')
    
    time_base = float(video_stream.time_base)
    
    target_timestamp = int(target_sec / time_base) + video_stream.start_time
    
    video_stream.seek(target_timestamp)
    
    for frame in container.decode(video_stream):
    
        frame.to_image().save('frame_at_14_seconds.jpg')
    
        break

    Additionally, I have found any documentation about this, but does anyone know if either command (ffmpeg/av.open) is downloading the entire file to a tmp file behind the scenes. I’m looking for a less memory-intensive way to read a frame for every second in an up to 60 second video.

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