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Autres articles (71)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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 (...)

  • 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 (12134)

  • FFMPEG Crop with side by side merge

    24 juin 2019, par Alan

    I am trying to create a shell/ffmpeg script that can show multiple files after they have been processed using different filters in a side by side / tiled way. An example of desired output would be : https://www.youtube.com/watch?v=DoPuhMRYem4.

    In order to create the desired output I need to crop off the right half of video1 and the left half of video2 and then join them back with [video1+video2] side by side. I have played around with a bunch of different ways of joining them, this does OK :

    ffmpeg -i input1.mp4 -i input2.mp4 -filter_complex "
    
nullsrc=size=800x400 [background];
    
[0:v] setpts=PTS-STARTPTS, scale=400x400 [left];
    
[1:v] setpts=PTS-STARTPTS, scale=400x400 [right];
    
[background][left]       overlay=shortest=1       [background+left];
    
[background+left][right] overlay=shortest=1:x=400 [left+right]
    
" -map '[left+right]' joined.mp4

    How can I modify this to detect the video width (they won’t always be the same width), divide the width in half and crop either the left or right sides off ?

  • FFMPEG Crop with side by side merge

    14 février 2016, par Alan

    I am trying to create a shell/ffmpeg script that can show multiple files after they have been processed using different filters in a side by side / tiled way. An example of desired output would be : https://www.youtube.com/watch?v=DoPuhMRYem4.

    In order to create the desired output I need to crop off the right half of video1 and the left half of video2 and then join them back with [video1+video2] side by side. I have played around with a bunch of different ways of joining them, this does OK :

    ffmpeg -i input1.mp4 -i input2.mp4 -filter_complex "
    
nullsrc=size=800x400 [background];
    
[0:v] setpts=PTS-STARTPTS, scale=400x400 [left];
    
[1:v] setpts=PTS-STARTPTS, scale=400x400 [right];
    
[background][left]       overlay=shortest=1       [background+left];
    
[background+left][right] overlay=shortest=1:x=400 [left+right]
    
" -map '[left+right]' joined.mp4

    How can I modify this to detect the video width (they won’t always be the same width), divide the width in half and crop either the left or right sides off ?

  • Batch Script to Download Video with youtube-dl and Convert with FFmpeg

    24 octobre 2019, par Matt McManis

    I’m trying to

    1. Using a single batch script to
    2. Download an mp4 video using youtube-dl
    3. Save the video’s original title to a batch variable
    4. Convert the video to webm with FFmpeg

    I want to keep the original title, so it needs to read the title with youtube-dl, save it to a variable, and use that variable for FFmpeg input/output filename.

    CMD Batch

    1. Download Video

    youtube-dl -f best "https://www.youtube.com/watch?v=TWNhqCHw0qc" -o "C:\Users\Matt\Downloads\%%(title)s.mp4" --merge-output-format mp4

    2. Download Video using Loop

    This is used to save the title to a variable %%a.

    for /f "delims=" %%a in ('youtube-dl -f best "https://www.youtube.com/watch?v=TWNhqCHw0qc" -o @"C:\Users\Matt\Downloads\%%(title)s.mp4" --merge-output-format mp4') do (echo example)

    3. Final Script
    Download Video, Save Title, Convert with FFmpeg

    Sorted

    for /f "delims=" %%a in ('
    
    youtube-dl 
    
    -f best "https://www.youtube.com/watch?v=TWNhqCHw0qc" 
    
    -o @"C:\Users\Matt\Downloads\%%(title)s.mp4" 
    
    --merge-output-format mp4
    
    ')
    

    
do (ffmpeg -y 
    
    -i "C:\Users\Matt\Downloads\%%a.mp4" 
    
    -c:v libvpx -b:v 1300K -crf 16 -pix_fmt yuv420p 
    
    -map 0:v:0? -sn 
    
    -c:a libvorbis -q:a 6 -ac 2 -map 0:a:0? 
    
    -f webm
    
    "C:\Users\Matt\Downloads\%%a.webm"
    
    )

    Inline

    for /f "delims=" %%a in ('youtube-dl -f best "https://www.youtube.com/watch?v=TWNhqCHw0qc" -o @"C:\Users\Matt\Downloads\%%(title)s.mp4" --merge-output-format mp4') do (ffmpeg -y -i "C:\Users\Matt\Downloads\%%a.mp4" -c:v libvpx -b:v 1300K -crf 16 -pix_fmt yuv420p -map 0:v:0? -sn -c:a libvorbis -q:a 6 -ac 2 -map 0:a:0? -f webm "C:\Users\Matt\Downloads\%%a.webm")

    Error

    Before the script can ever reach FFmpeg, youtube-dl fails to download the file. It says the file has already been downloaded, even when there is no file in the directory.

    [download] @C#\Users\Matt\Downloads\Color Balloons.mp4 has already
    been downloaded

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