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  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • Prérequis à l’installation

    31 janvier 2010, par

    Préambule
    Cet article n’a pas pour but de détailler les installations de ces logiciels mais plutôt de donner des informations sur leur configuration spécifique.
    Avant toute chose SPIPMotion tout comme MediaSPIP est fait pour tourner sur des distributions Linux de type Debian ou dérivées (Ubuntu...). Les documentations de ce site se réfèrent donc à ces distributions. Il est également possible de l’utiliser sur d’autres distributions Linux mais aucune garantie de bon fonctionnement n’est possible.
    Il (...)

  • 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 (8872)

  • (Cross-platform) FFMPEG based GUI direct stream copy linear video editor [on hold]

    14 octobre 2014, par Fluorescent Hallucinogen

    FFMPEG official site has list of FFMPEG based projects (https://trac.ffmpeg.org/wiki/Projects).

    I use VirtualDub for linear video montage using direct stream copy mode (without recompression). It is GNU GPL licensed, but is designed only for Microsoft Windows and operates only AVI files.

    FFMPEG is excellent cross-platform utility that supports many formats (codecs and containers). It can be used for split and merge video files (not only AVI) using direct stream copy mode, but FFMPEG is console UI application.

    Is there GUI video editor (based on FFMPEG) (cross-platform or maybe only for Linux or maybe only for Windows) that can split and merge video files (not only AVI) using direct stream copy mode and have preview window ?

    Now I use video player, watch the input video file, remember the time for split video to fragments and write console line script for merge these fragments. All work is OK, but it is very inconvenient.

    At the worst, are there players or editors that can generate project file (that contains time markers for split and merge) that can be used with FFMPEG ?

  • ffmpeg - i do not add some headers

    27 décembre 2020, par badcode

    I have compiled the FFmpeg library using : https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

    


    And have built the doc/examples codes and they are working well. There is no problem.

    


    But now I try to add some extra headers to my code

    


    #include "libavformat/avformat.h" // its ok
#include "libavformat/oggdec.h" // fail


    


    but it gives the following error.

    


     No such file or directory
 #include "libavformat/oggdec.h"


    


    And this libavformat dir :

    


    (base) alitokur@ubuntu:~/ffmpeg_sources/ffmpeg/libavformat$ ls | grep ogg
oggdec.c
oggdec.d
oggdec.h
oggdec.o
oggenc.c
oggenc.d
oggenc.o
oggparsecelt.c
oggparsecelt.d
oggparsecelt.o
oggparsedirac.c
oggparsedirac.d
oggparsedirac.o
oggparseflac.c
oggparseflac.d
oggparseflac.o
oggparseogm.c
oggparseogm.d
oggparseogm.o
oggparseopus.c
oggparseopus.d
oggparseopus.o
oggparseskeleton.c
oggparseskeleton.d
oggparseskeleton.o
oggparsespeex.c
oggparsespeex.d
oggparsespeex.o
oggparsetheora.c
oggparsetheora.d
oggparsetheora.o
oggparsevorbis.c
oggparsevorbis.d
oggparsevorbis.o
oggparsevp8.c
oggparsevp8.d
oggparsevp8.o


    


    I cant add other headers btw except "avformat.h". What am I missing ?

    


  • Mathematically lossless encoding and decoding of RGB24 image sequence

    25 avril 2013, par curryage

    I am trying to encode a RGB24 image sequence into a mathematically (not merely visually) lossless video. huffyuv was suggested on many online forums so I tried the following.

    ffmpeg -i frames\%06d.png  -vcodec huffyuv test.avi

    The resulting video was then decoded into frames again using ffmpeg

    ffmpeg -i test.avi outframes\%06d.png

    However, the input and output frames are not bit-by-bit identical as promised by huffyuv here. Any idea how I can accomplish this ? My eventual goal is to read the video file using OpenCV but I am willing to cross that bridge later once I obtain a losslessly encoded video file.

    This SO question mentions an attempt to obtain a lossless h264 avi and the summary of responses seems to indicate h264 cannot completely accomplish lossless encoding.

    Once again, to emphasize, I am interested in bit-by-bit identical encoding, not just visually similar. Large file sizes are acceptable as is large compression/decompression time.

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