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Autres articles (109)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (11417)

  • How to download/convert multiple streams to multiple outputs with FFmpeg ?

    16 avril 2016, par Website Newbie

    Let’s say I have 20 different online stream videos (playlist.m3u8) and I want every video to output to their own .avi files. How can I do that in single file, so I don’t have to download and convert every single one separately ?

    I found a -map command online, but didn’t get straight answer to this.

    Will this be a working code ?

    ffmpeg -i 1playlist.m3u8 -vf scale=768:-1 -vcodec libx264 -crf 24 -acodec copy -map 0 1.avi \
    
-i 2playlist.m3u8 -vf scale=768:-1 -vcodec libx264 -crf 24 -acodec copy -map 1 2.avi \
    
-i 3playlist.m3u8 -vf scale=768:-1 -vcodec libx264 -crf 24 -acodec copy -map 2 3.avi

  • FFmpeg benchmark option

    12 septembre 2019, par chronosynclastic

    FFmpeg allows measuring CPU and wall-clock times using the -benchmark option. It gives e.g. an output like this :
    bench: utime=0.689s stime=1.350s rtime=4.036s.

    Does the value rtime contain also the file reading and writing times ? If yes, is there a way to measure solely the encoding time ?

  • ffmpeg : Extract every nth frame and save only that frame with frame index as name [duplicate]

    2 février 2021, par CatTheGrimReaper

    I want to create a bash script (Windows 10) that lets me extract every 5th frame from every video in the current folder. The frames should be saved as "videoname-framenumber.jpg". So the output should be

    


    


    "videoname-frame_1.jpg", "videoname-frame_5.jpg",
"videoname-frame_10.jpg", etc.

    


    


    for %%F in (*.mp4) do (
ffmpeg -i %%F -vf "select=not(mod(n\,5))" %%~nF-%%4d.jpg
)


    


    This is what I have so far, but it doesn't do what I want. This extracts the first frame and saves it four times (as "videoname-0001.jpg", "videoname-0002.jpg", "videoname-0003.jpg", "videoname-0004.jpg"), then extracts the fifth frame and saves it four times (as "videoname-0005.jpg", "videoname-0006.jpg".....) and so on.

    


    My two problems are :

    


      

    1. I don't know why it saves every 5th frame four times, it should only save it one time each.

      2. 


    2. How do I insert the current frame index as a suffix to my output image file's name ?

      3. 


    


    Any help would be appreciated, thanks !

    


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