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  • Qu’est ce qu’un éditorial

    21 juin 2013, par

    Ecrivez votre de point de vue dans un article. Celui-ci sera rangé dans une rubrique prévue à cet effet.
    Un éditorial est un article de type texte uniquement. Il a pour objectif de ranger les points de vue dans une rubrique dédiée. Un seul éditorial est placé à la une en page d’accueil. Pour consulter les précédents, consultez la rubrique dédiée.
    Vous pouvez personnaliser le formulaire de création d’un éditorial.
    Formulaire de création d’un éditorial Dans le cas d’un document de type éditorial, les (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

  • 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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  • Cropping specific parts on a video using ffmpeg

    15 juin 2016, par Le Qs

    I have a video SB.ogv that i want to cut some parts.The video is 01:36 long and i want to cut out the first four seconds of the video.

    I a using this command

    ffmpeg -i SB.ogv -vcodec copy -acodec copy -ss 00:00:04 -to 00:01:36 outputFile.ogv

    I got this error

    qubit@qubit-HP-EliteBook-2540p:~/dv$ ffmpeg -i SB.ogv -vcodec copy -acodec copy -ss 00:00:04 -to 00:01:36 outputFile.ogv
    
ffmpeg version 2.7.6-0ubuntu0.15.10.1 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 5.2.1 (Ubuntu 5.2.1-22ubuntu2) 20151010
    
  configuration: --prefix=/usr --extra-version=0ubuntu0.15.10.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --enable-shared --disable-stripping --enable-avresample --enable-avisynth --enable-frei0r --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-openal --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libxvid --enable-libzvbi --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-libssh --enable-libsoxr --enable-libx264 --enable-libopencv --enable-libx265
    
  libavutil      54. 27.100 / 54. 27.100
    
  libavcodec     56. 41.100 / 56. 41.100
    
  libavformat    56. 36.100 / 56. 36.100
    
  libavdevice    56.  4.100 / 56.  4.100
    
  libavfilter     5. 16.101 /  5. 16.101
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  1.101 /  3.  1.101
    
  libswresample   1.  2.100 /  1.  2.100
    
  libpostproc    53.  3.100 / 53.  3.100
    
[ogg @ 0x1bbfc80] Broken file, keyframe not correctly marked.
    
Input #0, ogg, from 'SB.ogv':
    
  Duration: 00:01:36.40, start: 0.000000, bitrate: 1685 kb/s
    
    Stream #0:0: Data: none
    
    Stream #0:1: Video: theora, yuv420p, 1280x800 [SAR 1:1 DAR 8:5], 15 tbr, 15 tbn, 15 tbc
    
    Metadata:
    
      RECORDMYDESKTOP : 0.3.8.1
    
    Stream #0:2: Audio: vorbis, 22050 Hz, mono, fltp, 89 kb/s
    
Output #0, ogg, to 'outputFile.ogv':
    
  Metadata:
    
    encoder         : Lavf56.36.100
    
    Stream #0:0: Video: theora, yuv420p, 1280x800 [SAR 1:1 DAR 8:5], q=2-31, 15 tbr, 15 tbn, 15 tbc
    
    Metadata:
    
      RECORDMYDESKTOP : 0.3.8.1
    
      encoder         : Lavf56.36.100
    
    Stream #0:1: Audio: vorbis, 22050 Hz, mono, 89 kb/s
    
    Metadata:
    
      encoder         : Lavf56.36.100
    
Stream mapping:
    
  Stream #0:1 -> #0:0 (copy)
    
  Stream #0:2 -> #0:1 (copy)
    
Press [q] to stop, [?] for help
    
[ogg @ 0x1bbfc80] Broken file, keyframe not correctly marked.
    
    Last message repeated 13 times
    
[ogg @ 0x1bbfc80] Broken file, non-keyframe not correctly marked.
    
    Last message repeated 9 times
    
[ogg @ 0x1bbfc80] Broken file, keyframe not correctly marked.
    
    Last message repeated 2 times
    
[ogg @ 0x1bbfc80] Broken file, non-keyframe not correctly marked.
    
    Last message repeated 8 times
    
[ogg @ 0x1bbfc80] Broken file, keyframe not correctly marked.
    
frame= 1090 fps=0.0 q=-1.0 Lsize=   19021kB time=00:01:32.00 bitrate=1693.7kbits/s    
    
video:17509kB audio:1413kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.524658%
    
qubit@qubit-HP-EliteBook-2540p:~/dv$

    The video SB.ogv is in the current directory.

  • Revision dcac083cf3 : Implementing 4x4 variance calculation with SSE2. New SSE2 function is three tim

    28 août 2014, par Dmitry Kovalev

    Changed Paths :
     Modify /vp9/encoder/x86/vp9_variance_sse2.c



    Implementing 4x4 variance calculation with SSE2.

    New SSE2 function is three times faster than MMX one.

    Change-Id : I4f387ce9f75b88379176ec7bdc62d86eb5f70fbe

  • Overlay images on video in android

    31 août 2016, par Basit Ali

    I have to overlay images on video on different positions and on different times.
    Currently I am using ffmpeg but it is overhead of doing this frame by frame.
    Also ffmpeg is very complex and takes very much time to process the task.
    Alternatively iOS have avfoundation which is very better and fast. Do we have anything like this in android ?

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