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Autres articles (37)

  • Contribute to a better visual interface

    13 avril 2011

    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.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

Sur d’autres sites (5014)

  • 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.

  • Images to Video converter in Android

    27 août 2013, par Sivakumar S

    I would like to convert multiple images(frames) to a video(MP4) in an android device. Also, I would like to convert video(MP4) into multiple images(for each frame). I have limited knowledge on FFMPEG, but installing FFMPEG in Android may consume more time. I Would like to ask experienced engineers to suggest a better strategy which can take less time to complete this task. Please point me to some open source code which I may modify to complete this task quickly.

  • Revision 18078 : Warn, instead of asserting, when a stream has nothing to index. This ...

    4 septembre 2011, par oggk — Log

    Warn, instead of asserting, when a stream has nothing to index.
    This can happen when encoding part of a video with subtitles,
    if no subtitles are present in the encoded segment.

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