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Autres articles (73)

  • 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 (...)

  • MediaSPIP en mode privé (Intranet)

    17 septembre 2013, par

    À partir de la version 0.3, un canal de MediaSPIP peut devenir privé, bloqué à toute personne non identifiée grâce au plugin "Intranet/extranet".
    Le plugin Intranet/extranet, lorsqu’il est activé, permet de bloquer l’accès au canal à tout visiteur non identifié, l’empêchant d’accéder au contenu en le redirigeant systématiquement vers le formulaire d’identification.
    Ce système peut être particulièrement utile pour certaines utilisations comme : Atelier de travail avec des enfants dont le contenu ne doit pas (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

Sur d’autres sites (10342)

  • imagemagick gradient mask file creation

    6 avril 2016, par lang2

    I’m playing with this creative script here : http://www.fmwconcepts.com/imagemagick/transitions/. The plan is to mimic what happens with the script with ffmpeg and generate video with transition effects between pictures. My current understanding is this :

    1. I have two pictures A and B.
    2. I need in between a couple of pictures (say 15) that are partially A and partially B.
    3. To do that I use the composite -compose src-over A.jpg B.jpg mask-n.jpg out.jpg command.
    4. During the process, the mask-n.jpg gets generated automatically that gradually change from all black to all white.
    5. Depends on the mathematically equations, the way the transition effect looks is different.

    In one of the example, Fred the author gave this :

    convert -size 128x128 gradient: maskfile.jpg

    This will generate a image like this :
    enter image description here

    This is partially black and partially white. For the transition to work, I’ll need an all white one and an all black one and a couple of others in between. What’s the magical command to do that ?

  • getting 2 video streams in output.mkv ?

    3 janvier 2024, par Kirito

    In short, I have 1 video.mkv and 1 subtitle.ass. Using ffmpeg, I am adding subtitles to the video without removing the previous subtitles that came with the video. The problem is that some videos' output.mkv files are getting a duplicate video stream. Not all the videos I tested have this issue. I have added the log of one of those for reference.

    


    Here is my code :

    


     ffmpeg -i input_video.mkv -i subtitle_path.ass -c:v copy -c:a copy -c:s copy -map 0:v:0
 -map 0:m:language:jpn -map 0:s -map 1 -metadata:s:s:3 language=ara -max_interleave_delta 0 -y output_path.mkv


    


    \TEST> ffmpeg -i input_video.mkv -i subtitle_path.ass -c:v copy -c:a copy -c:s copy -map 0:v:0 -map 0:m:language:jpn -map 0:s -map 1 -metadata:s:s:3 language=ara -max_interleave_delta 0 -y output_path.mkv
ffmpeg version 2023-12-28-git-c1340f3439-full_build-www.gyan.dev Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --pkg-config=pkgconf --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libjxl --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-dxva2 --enable-d3d11va --enable-libvpl --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      58. 36.100 / 58. 36.100
  libavcodec     60. 36.100 / 60. 36.100
  libavformat    60. 20.100 / 60. 20.100
  libavdevice    60.  4.100 / 60.  4.100
  libavfilter     9. 14.102 /  9. 14.102
  libswscale      7.  6.100 /  7.  6.100
  libswresample   4. 13.100 /  4. 13.100
  libpostproc    57.  4.100 / 57.  4.100
Input #0, matroska,webm, from 'input_video.mkv':
  Metadata:
    encoder         : libebml v1.3.5 + libmatroska v1.4.8
    creation_time   : 2018-04-21T21:21:39.000000Z
  Duration: 00:24:26.56, start: 0.000000, bitrate: 2453 kb/s
  Stream #0:0(jpn): Video: h264 (High), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn (default)
      Metadata:
        BPS-eng         : 2291326
        DURATION-eng    : 00:24:26.465000000
        NUMBER_OF_FRAMES-eng: 35160
        NUMBER_OF_BYTES-eng: 420018724
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:1(jpn): Audio: aac (LC), 48000 Hz, stereo, fltp (default)
      Metadata:
        BPS-eng         : 159375
        DURATION-eng    : 00:24:26.560000000
        NUMBER_OF_FRAMES-eng: 68745
        NUMBER_OF_BYTES-eng: 29216626
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:2(eng): Subtitle: ass (default)
      Metadata:
        BPS-eng         : 99
        DURATION-eng    : 00:21:35.870000000
        NUMBER_OF_FRAMES-eng: 302
        NUMBER_OF_BYTES-eng: 16109
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:3(spa): Subtitle: ass
      Metadata:
        BPS-eng         : 92
        DURATION-eng    : 00:20:05.580000000
        NUMBER_OF_FRAMES-eng: 254
        NUMBER_OF_BYTES-eng: 13877
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:4(por): Subtitle: ass
      Metadata:
        BPS-eng         : 91
        DURATION-eng    : 00:20:05.580000000
        NUMBER_OF_FRAMES-eng: 254
        NUMBER_OF_BYTES-eng: 13846
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Input #1, ass, from 'subtitle_path.ass':
  Duration: N/A, bitrate: N/A
  Stream #1:0: Subtitle: ass
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:0 -> #0:1 (copy)
  Stream #0:1 -> #0:2 (copy)
  Stream #0:2 -> #0:3 (copy)
  Stream #0:3 -> #0:4 (copy)
  Stream #0:4 -> #0:5 (copy)
  Stream #1:0 -> #0:6 (copy)
Output #0, matroska, to 'output_path.mkv':
  Metadata:
    encoder         : Lavf60.20.100
  Stream #0:0(jpn): Video: h264 (High) (H264 / 0x34363248), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 23.98 tbr, 1k tbn (default)
      Metadata:
        BPS-eng         : 2291326
        DURATION-eng    : 00:24:26.465000000
        NUMBER_OF_FRAMES-eng: 35160
        NUMBER_OF_BYTES-eng: 420018724
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:1(jpn): Video: h264 (High) (H264 / 0x34363248), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 23.98 fps, 23.98 tbr, 1k tbn (default)
      Metadata:
        BPS-eng         : 2291326
        DURATION-eng    : 00:24:26.465000000
        NUMBER_OF_FRAMES-eng: 35160
        NUMBER_OF_BYTES-eng: 420018724
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:2(jpn): Audio: aac (LC) ([255][0][0][0] / 0x00FF), 48000 Hz, stereo, fltp (default)
      Metadata:
        BPS-eng         : 159375
        DURATION-eng    : 00:24:26.560000000
        NUMBER_OF_FRAMES-eng: 68745
        NUMBER_OF_BYTES-eng: 29216626
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:3(eng): Subtitle: ass (default)
      Metadata:
        BPS-eng         : 99
        DURATION-eng    : 00:21:35.870000000
        NUMBER_OF_FRAMES-eng: 302
        NUMBER_OF_BYTES-eng: 16109
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:4(spa): Subtitle: ass
      Metadata:
        BPS-eng         : 92
        DURATION-eng    : 00:20:05.580000000
        NUMBER_OF_FRAMES-eng: 254
        NUMBER_OF_BYTES-eng: 13877
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:5(por): Subtitle: ass
      Metadata:
        BPS-eng         : 91
        DURATION-eng    : 00:20:05.580000000
        NUMBER_OF_FRAMES-eng: 254
        NUMBER_OF_BYTES-eng: 13846
        _STATISTICS_WRITING_APP-eng: mkvmerge v22.0.0 ('At The End Of The World') 32-bit
        _STATISTICS_WRITING_DATE_UTC-eng: 2018-04-21 21:21:39
        _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
  Stream #0:6(ara): Subtitle: ass
Press [q] to stop, [?] for help
[out#0/matroska @ 000002995bf18bc0] video:820349kB audio:28532kB subtitle:65kB other streams:0kB global headers:5kB muxing overhead: 0.122471%
size=  849986kB time=00:23:40.86 bitrate=4900.6kbits/s speed= 326x


    


    I am very Clueless as the command is working on some videos

    


  • Evolution #2608 (Fermé) : visiteurs

    22 mars 2012, par cedric -

    faut relire le thread de 6 mois sur le bandeau... les visiteurs concernent l’activité publique du site et sont donc rangés dans le menu Activité

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