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Autres articles (41)

  • 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

  • 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 (...)

  • 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 (6060)

  • How to find an audio channel layout of a video an then apply it to an another video

    3 janvier 2023, par someCO_OLguy

    We have a video of an audio channel layout, let's say BL. We don't know the format. We need to find the layout of that video and apply to a different video, assuming that each video only has 1 channel.

    


    I tried a lot, and still I can't find an answer that could work

    


  • FFMPEG images to video + overlay video

    7 novembre 2018, par AK47

    I am trying to make 15 second video where the background layer is a video made up of 2 images, the first line creates a 15 second video from 2 images.

    I chose a small framerate so it renders an mp4 quickly. I then overlay a webm video (which has transparency) over the images. The final video seems to keep the framerate of 2, but i would rather keep the 24 framerate of the webm video.

    Is this possible ? & is it also possible to turn the below into 1 statement.

    ffmpeg -loop 1 -framerate 2 -t 11 -i image1.png -loop 1 -framerate 2 -t 4 -i image2.png -filter_complex "[0][1]concat=n=2" backgroundvideo.mp4;
    
ffmpeg -i backgroundvideo.mp4 -c:v libvpx-vp9 -i overlayvideo.webm -filter_complex overlay newvid.mp4

  • FFMPEG Overlay 1080X1920 video over 1280X720 video at a particular vertical position

    9 mai 2019, par CRAIG

    I have a 1080X1920 (vertical) video with alpha channel with a blank spot 500px north of the bottom. This blank spot is 1080X607.

    I have a 1280X720 sized video I want to position in that spot, so the 1280 video will have to be sized down to 1080 wide and then positioned 500px from the bottom and UNDER the video on top.

    This is what I currently have, but it is failing beautifully.

    /usr/local/bin/ffmpeg  -i 1080x1920.mov -i 1280x720.MOV 
    
  -filter_complex "[1][0]overlay=main_w-overlay_w-0:main_h-overlay_h-500" 
    
  -c:v libx264 -profile:v high444 -pix_fmt yuv420p -level 3.1 -y  final.mp4

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