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  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

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  • How to extract video+audio streams from MP4 file via ffmpeg ?

    12 août 2022, par Matthias

    I have a bunch of MP4 files from a GoPro, which include streams of metadata like GPS information. Now unfortunately when I try to open these MP4 files in any browser (tried both Firefox and Chrome on Windows and Linux), then only the audio is being played, but no video. I can, however, open the MP4 files in VLC player and that can play both video and audio without problem - so the files seem correct, just the browser cannot play them correctly.

    


    Since I need to play the MP4 files in a browser, I need to extract both the video and the audio streams from the original files and create new MP4 files out of them, in a format so that the browser can play them. I also don't want to loose any frames during conversion - it would be OK to compress the video stream a bit, so that the resulting MP4 files would be a bit smaller than the originals, but the number of frames and the FPS value and these settings must be exactly as in the original file.

    


    What would be the proper ffmpeg command to achieve this ?
    
For your reference, this is the information from ffprobe on one of the videos :

    


    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55ce62e37a00] Using non-standard frame rate 59/1
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/winclients/ASFINAG/Abnahme/GX010005.MP4':
  Metadata:
    major_brand     : mp41
    minor_version   : 538120216
    compatible_brands: mp41
    creation_time   : 2021-06-07T15:21:10.000000Z
    location        : +48.3743+016.2383/
    location-eng    : +48.3743+016.2383/
    firmware        : HD9.01.01.00.00
  Duration: 00:08:51.54, start: 0.000000, bitrate: 60205 kb/s
    Stream #0:0(eng): Video: hevc (Main) (hvc1 / 0x31637668), yuvj420p(pc, bt709), 3840x2160 [SAR 1:1 DAR 16:9], 59941 kb/s, 59.94 fps, 59.94 tbr, 60k tbn, 59.94 tbc (default)
    Metadata:
      creation_time   : 2021-06-07T15:21:10.000000Z
      handler_name    : GoPro H.265
      encoder         : GoPro H.265 encoder
      timecode        : 15:35:51:04
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
    Metadata:
      creation_time   : 2021-06-07T15:21:10.000000Z
      handler_name    : GoPro AAC
      timecode        : 15:35:51:04
    Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
    Metadata:
      creation_time   : 2021-06-07T15:21:10.000000Z
      handler_name    : GoPro TCD
      timecode        : 15:35:51:04
    Stream #0:3(eng): Data: bin_data (gpmd / 0x646D7067), 47 kb/s (default)
    Metadata:
      creation_time   : 2021-06-07T15:21:10.000000Z
      handler_name    : GoPro MET
    Stream #0:4(eng): Data: none (fdsc / 0x63736466), 13 kb/s (default)
    Metadata:
      creation_time   : 2021-06-07T15:21:10.000000Z
      handler_name    : GoPro SOS
Unsupported codec with id 0 for input stream 2
Unsupported codec with id 100359 for input stream 3
Unsupported codec with id 0 for input stream 4


    


  • FFmpeg gdigrab failed to capture image

    1er février 2023, par Marek Spišiak

    Hi I am trying to capture desktop with ffmpeg gdigrab. I am using SSH connection to remotely use admin cmd on windows 10 pc. When i execute this command normally it works but remotely it doesnt.

    


    ffmpeg -f gdigrab -framerate 30 -i desktop output.mkv

    


    error message

    


    ffmpeg version 4.4-essentials_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma --enable-zlib --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-sdl2 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-libass --enable-libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libgme --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libtheora --enable-libvo-amrwbenc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-librubberband
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
[gdigrab @ 000001f3e781e600] Capturing whole desktop as 1024x768x32 at (0,0)
[gdigrab @ 000001f3e781e600] Failed to capture image (error 5)
[gdigrab @ 000001f3e781e600] Could not find codec parameters for stream 0 (Video: bmp, none, 754987 kb/s): unspecified size
Consider increasing the value for the 'analyzeduration' (15000000) and 'probesize' (70000000) options
Input #0, gdigrab, from 'desktop':
  Duration: N/A, bitrate: 754987 kb/s
  Stream #0:0: Video: bmp, none, 754987 kb/s, 30 fps, 1000k tbr, 1000k tbn, 1000k tbc
Output #0, matroska, to 'pipe:':
Output file #0 does not contain any stream


    


    I tried to increase analyzeduration and probesize to max integer but it doesnt help.

    


  • youtube_dl error ffprobe and ffmpeg not found

    10 septembre 2022, par RaphaelKursawe

    I've been using youtube_dl for a while now without any problems.
Since maybe around a week I am always getting the following error when trying to download something and don't know how to fix it :

    


    


    ERROR : ffprobe/avprobe and ffmpeg/avconv not found. Please install
one.

    


    


    I am using it in a virtual python 3.8.10 environment with youtube_dl version 2021.12.17, ffmpeg version 1.4 and ffprobe version 0.5 displayed with "pip freeze" command.
The os is ubuntu server 20.04.5 LTS.

    


    I already tried installing ffmpeg in multiple different ways (pip, apt install) and installing it on different "layers" (virtual env, normal user, root user) but nothing seemed to help.

    


    For any tips / suggestions that might help I'd be really glad.

    


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