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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 (...)

  • Problèmes fréquents

    10 mars 2010, par

    PHP et safe_mode activé
    Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
    La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site

  • Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

    12 avril 2011, par

    La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
    Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.

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  • avconv / ffmpeg webcam capture while using minimum CPU processing

    10 septembre 2015, par user3585723

    I have a question about avconv (or ffmpeg) usage.

    My goal is to capture video from a webcam and saving it to a file.
    Also, I don’t want to use too much CPU processing. (I don’t want avconv to scale or re-encode the stream)

    So, I was thinking to use the compressed mjpeg video stream from the webcam and directly saving it to a file.

    My webcam is a Microsoft LifeCam HD 3000 and its capabilities are :

    ffmpeg -f v4l2 -list_formats all -i /dev/video0
    

    
Raw: yuyv422 : YUV 4:2:2 (YUYV) : 640x480 1280x720 960x544 800x448 640x360 424x240 352x288 320x240 800x600 176x144 160x120 1280x800
    

    
Compressed: mjpeg : MJPEG : 640x480 1280x720 960x544 800x448 640x360 800x600 416x240 352x288 176x144 320x240 160x120

    What would be the avconv command to save the Compressed stream directly without having avconv doing scaling or re-encoding.

    For now, I am using this command :

    avconv -f video4linux2 -r 30 -s 320x240 -i /dev/video0 test.avi

    I’m not sure that this command is CPU efficient since I don’t tell anywhere to use the mjpeg Compressed capability of the webcam.

    Is avconv taking care of the configuration of the webcam setting before starting to record the file ? Is it always working of raw stream and doing scaling and enconding on the raw stream ?

    Thanks for your answer

  • (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 ?

  • fftools/ffmpeg_opt : Document VAAPI -device usage for DirectX Adapter

    14 avril 2023, par Sil Vilerino
    fftools/ffmpeg_opt : Document VAAPI -device usage for DirectX Adapter

    Initial review at https://github.com/intel-media-ci/ffmpeg/pull/619/
    

    Signed-off-by : Sil Vilerino <sivileri@microsoft.com>
    
Reviewed-by : Dmitry Rogozhkin <dmitry.v.rogozhkin@intel.com>
    
Reviewed-by : Wu, Tong1 <tong1.wu@intel.com>
    • [DH] doc/ffmpeg.texi
    • [DH] fftools/ffmpeg_opt.c

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