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  • 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 (13519)

  • Using ffmpeg to create a video from a sequence of TGA images, with a depth of field blur effect sourced from the TGA's alpha channel

    19 mars 2016, par vpvp

    I’m working on turning a sequence of TGA images into a video using ffmpeg. I want the video to have a depth of field blur effect. The alpha channel of each TGA contains a depth-mask, where black=close and white=far. I want to use this info to add DOF blur to the final output of that frame. After searching, the closest answer I could find was this
    http://superuser.com/questions/916431/ffmpeg-filter-to-boxblur-and-greyscale-a-video-using-alpha-mask, but it is for a static dof-mask. The DOF mask I would be using is obviously changing every frame, and an alpha channel instead of a seperate png.

    Here is my current cmd line

    ffmpeg -framerate 60 -i image.%10d.tga -c:v libx264 -preset slow -crf 0 -c:a copy -pix_fmt yuv420p output0.mp4

    It seems the answer would involve some use of alphamerge/alphaextract/boxblur, but I’m brand new to ffmpeg so I don’t know how to formulate the command.

    Thanks in advance.

  • ffmpeg alpha merge mp4 to alpha mov (heic)

    25 mars 2022, par Alex

    I have two video files (mp4), matte/alpha (white silhouette) and normal.
I want to create a .mov file with transparent background that is possible to play on iOS/Safari devices.

    


    Commands I'm trying to run :

    


    ffmpeg -i color.mp4 -i alpha.mp4 -filter_complex '[1][0]scale2ref[mask][main];[main][mask]alphamerge' -c:v libx265 -tag:v hvc1 -pix_fmt yuva420p output.mov

ffmpeg -i color.mp4 -i alpha.mp4 -filter_complex '[1][0]scale2ref[mask][main];[main][mask]alphamerge' -c:v qtrle output.mov


    


    Expected result : Transparent background

    


    Actual result : Background is not transparent

    


    What I'm trying to achieve :
https://rotato.app/blog/transparent-videos-for-the-web

    


  • Is it possible to set channel layout of wave file using ffmpeg without re-encoding the file ?

    27 août 2020, par John Baker

    I want to set the WAVEFORMATEXTENSIBLE dwChannelMask (channel order mask) in a poly WAV file that doesn't yet have a channel mask set.

    


    Can ffmpeg do this ? If not, is there another tool that can do this ?

    


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