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Autres articles (96)

  • 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 (...)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

Sur d’autres sites (9429)

  • FFmpeg - Is It Possible To Cut Video Stream According to its SSIM Value

    30 juillet 2021, par user4134414

    I have a video stream with a certain constant event happening from time to time. For example, a traffic light turning green. I would like to cut a few seconds of the video every time the event happens (continuing the example, cars start moving). I managed to use a predefined image and SSIM to detect the event (in the SSIM log file), but I cannot find a way to cut the stream in real time according to its SSIM value. Any help would be appreciated.

    


  • Mac El Capitan can't open ffmpeg output with quicktime

    12 novembre 2019, par kilojoules

    Quicktime can’t read the output of ffmpeg when I try making an animation. It uploads to imgur and plays no problem. A previous thread recommended that I add the -pix_fmt yuv420p flag. But, on my system, that does not work. ffmpeg runs without error when I exclude the pix_fmt flag, but I cannot open the output animation in quicktime.

    Why won’t quicktime open the animation ? How can I make the animation open with quicktime ?

    $ ffmpeg -y -i animation/tigers_${ii}_%05d.png  -pix_fmt yuv420p tiger${ii}.mp4
    
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
Input #0, image2, from 'animation/tigers_1.10_%05d.png':
    
  Duration: 00:00:08.32, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: png, rgba(pc), 2023x3036 [SAR 17716:17716 DAR 2023:3036], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x7fdd7b800c00] width not divisible by 2 (2023x3036)
    
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
    
Conversion failed!

  • Can't open ffmpeg output with quicktime, pix_fmt flag doesn't fix it

    13 novembre 2019, par kilojoules

    Quicktime can’t read the output of ffmpeg when I try making an animation. It uploads to imgur and plays no problem. A previous thread recommended that I add the -pix_fmt yuv420p flag. But, on my system, that does not work. ffmpeg runs without error when I exclude the pix_fmt flag, but I cannot open the output animation in quicktime.

    Why won’t quicktime open the animation ? How can I make the animation open with quicktime ?

    $ ffmpeg -y -i animation/tigers_${ii}_%05d.png  -pix_fmt yuv420p tiger${ii}.mp4
    
ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/4.0.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
    
  libavutil      56. 14.100 / 56. 14.100
    
  libavcodec     58. 18.100 / 58. 18.100
    
  libavformat    58. 12.100 / 58. 12.100
    
  libavdevice    58.  3.100 / 58.  3.100
    
  libavfilter     7. 16.100 /  7. 16.100
    
  libavresample   4.  0.  0 /  4.  0.  0
    
  libswscale      5.  1.100 /  5.  1.100
    
  libswresample   3.  1.100 /  3.  1.100
    
  libpostproc    55.  1.100 / 55.  1.100
    
Input #0, image2, from 'animation/tigers_1.10_%05d.png':
    
  Duration: 00:00:08.32, start: 0.000000, bitrate: N/A
    
    Stream #0:0: Video: png, rgba(pc), 2023x3036 [SAR 17716:17716 DAR 2023:3036], 25 fps, 25 tbr, 25 tbn, 25 tbc
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x7fdd7b800c00] width not divisible by 2 (2023x3036)
    
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
    
Conversion failed!

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