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  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    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 (...)

  • Librairies et binaires spécifiques au traitement vidéo et sonore

    31 janvier 2010, par

    Les logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
    Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
    Binaires complémentaires et facultatifs flvtool2 : (...)

  • 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 (6270)

  • FFmpeg Centos Compile Error - caused by libwebp (error : implicit declaration of function ‘libwebp_error_to_averror’)

    2 septembre 2022, par fvid1

    I'm trying to compile FFmpeg on Centos 7.9. I followed the official instructions : https://trac.ffmpeg.org/wiki/CompilationGuide/Centos

    


    I need support for WebP images, so I installed libwebp and libwebp-devel via YUM, and used the option --enable-libwebp.

    


    But at the ffmepg "make" stage, the following error is returned :

    


    CC      libavcodec/libwebpenc_common.o
libavcodec/libwebpenc_common.c: In function ‘ff_libwebp_get_frame’:
libavcodec/libwebpenc_common.c:283:17: error: implicit declaration of function ‘libwebp_error_to_averror’ [-Werror=implicit-function-declaration]
                 ret = libwebp_error_to_averror(pic->error_code);
                 ^
cc1: some warnings being treated as errors
make: *** [libavcodec/libwebpenc_common.o] Error 1


    


    Does anyone know why this error is occuring and how it can be corrected ?

    


    I've tried compiling without using --enable-libwebp and it works fine.

    


  • Fetching movies' frames via ffmpeg and feed it to vlfeat's sift

    16 novembre 2012, par Karl

    I am going to develop a program that uses ffmpeg and vlfeat on a linux server.

    My task is simply : get some frames from a movie file and feed these frames to vlfeat's sift.

    I am reading through some documents regarding using ffmpeg in c development, mainly here and here. As stated in the site, "There is not much "web based" official documentation for using these libraries." And some tutorials there might be a little outdated. I also read around that the API might differ from version to version. So I would like to ask for the following :

    1. Is it safe to follow this tutorial for the current implementation ?

      • If so, given the impression from above, what are some of the things that should be change for the current implementation ? (currently I got ffmpeg-git-c995644)
      • If not, what are the functions to acquire the frames of the movie file in any format ?

    2. For vlfeat side, if I am to feed a movie's image frame from ffmpeg, what kind of conversion is required so that vlfeat's sift implementation can "digest" the movie's image frame ?

  • Reliable video decode-(heavy edit)-encode with Mediacodec

    27 mai 2017, par Jason M

    I am building a Android app that does heavy video processing. I have read some background and examples from bigflake as well as the official docs but did not get a final answer. Here is what I would like to do in my app :

    1. Decode a mp4 video into raw yuv frames ;
    2. Edit each frame with a lot of computation, including flipping and cropping, preferably with my existing native C++ ;
    3. Encode the raw frames into another video.

    I am using API22 for robustness since "All video codecs support flexible YUV 4:2:0 buffers since LOLLIPOP_MR1." Unfortunately, when I call

    encoder.getInputImage();

    instead of

    encoder.getInputBuffer();

    I get a null, similar to This post with no answer. Is this a common issue ? Do I have other options to decode-edit-encode a video without either rendering to a Surface or using FFMPEG, which is a headache to build and debug ?

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