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Autres articles (83)

  • Soumettre bugs et patchs

    10 avril 2011

    Un logiciel n’est malheureusement jamais parfait...
    Si vous pensez avoir mis la main sur un bug, reportez le dans notre système de tickets en prenant bien soin de nous remonter certaines informations pertinentes : le type de navigateur et sa version exacte avec lequel vous avez l’anomalie ; une explication la plus précise possible du problème rencontré ; si possibles les étapes pour reproduire le problème ; un lien vers le site / la page en question ;
    Si vous pensez avoir résolu vous même le bug (...)

  • 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.

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

Sur d’autres sites (6842)

  • ffmpeg how to put color overlay over video

    17 novembre 2015, par flieks

    I want to put a color overlay (blue, red or green or hex value) over a video giving it a Instagram filter like effect.

    I think it should be in the lines of :

    ffmpeg -i video.mp4 -i "red.png" -filter_complex "blend=all_mode='screen':all_opacity=0.7" output.mp4

    or maybe with all_mode=overlay

    But I get an error :

    First input link top parameters (SAR 0:1) do not match the corresponding second input link bottom parameters (SAR 1:1).

    I also tried with lutrgb=r=1.5, but that didn’t give it a red color (it takes the red away).

    What am i doing wrong ?

  • Displaying a FOURCC UYVY video frame in a C# application

    4 avril 2019, par jjdev80

    I’m getting a byte stream from an encoder device, the byte stream is said to contain a "FOURCC UYVY" image. I need to display that image inside a C# application (Windows Forms), what would be the best way to do that ?

    I have seen some examples on how it’s done using ffmpeg, but it’s rather complicated, are there other, more convenient ways to do so ?

  • avcodec/mpeg4videodec : Remove always-true checks

    12 octobre 2022, par Andreas Rheinhardt
    avcodec/mpeg4videodec : Remove always-true checks

    codec_id is always AV_CODEC_ID_MPEG4 for mpeg4_decode_mb(),
    
as the MPEG-4 decoder is the only decoder for which
    
ff_mpeg4_decode_picture_header() as well as decode_init()
    
are ever called and these are the only places where
    
the decode_mb function pointer is ever set to mpeg4_decode_mb().
    
ff_mpeg4_workaround_bugs() is also only called for the MPEG-4
    
decoder (the caller checks the codec id).
    

    (ff_mpeg4_decode_picture_header() is also called for the MPEG-4
    
parser, but it never uses the decode_mb function pointer.)
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
    • [DH] libavcodec/mpeg4videodec.c

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