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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 (...)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (16674)

  • Extracting video frame image with libavformat and libswscale gives flipped image

    21 novembre 2015, par ivan.ukr

    I am using following code to extract image frames outputted by avcodec_decode_video2() into BMP file :

    // Convert the image from its native format to RGB
    
int height = sws_scale(state.sws_ctx, 
    
             (uint8_t const * const *)state.frame->data,
    
             state.frame->linesize, 
    
             0, 
    
             state.video_codec_ctx->height,
    
             state.picture.data, 
    
             state.picture.linesize);
    

    
// ..... here BMP header initialization goes ...
    

    
// Extract pixels
    
{
    
    int y = 0;
    
    size_t frame_line_size = state.picture.linesize[0];
    
    uint8_t* bmp_data = &bmp->data[0];
    
    uint8_t* picture_data = state.picture.data[0];
    
    while(y < height)
    
    {
    
        memcpy(bmp_data, picture_data, image_line_size);
    
        bmp_data += image_line_size_with_padding;
    
        picture_data += frame_line_size;
    
        ++y;
    
    }
    
}

    But it results flipped image :

    Resulting BMP image

    Can anyone please help me to understand, what I am doing wrong here ?

    Video stream information :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'testdata/video3.mp4':
    
  Metadata:
    
    major_brand     : isom
    
    minor_version   : 512
    
    compatible_brands: isomiso2avc1mp41
    
    creation_time   : 1970-01-01 00:00:00
    
    title           : video3.mp4
    
    encoder         : Lavf52.78.3
    
  Duration: 00:00:07.93, start: 0.000000, bitrate: 1467 kb/s
    
    Stream #0.0(und): Video: h264 (High), yuv420p, 640x320 [PAR 1:1 DAR 2:1], 1331 kb/s, 29.73 fps, 29.73 tbr, 29734 tbn, 59.47 tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
    Stream #0.1(und): Audio: aac, 48000 Hz, stereo, fltp, 127 kb/s
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
Video file 'testdata/video3.mp4' has 236 frames.

    I have alternate code that uses libopencv, and it gives correct image from the same video file, but I need to reach the correct effect using directly ffmpeg libs.

    Correct image established from the same video file via libopencv

  • mp4,m4v vidoes not play on firefox

    20 novembre 2015, par Waqas Ahad

    Using paperclip-ffmpeg for video uploading in Rails.
    It plays on Chrome but not on Firefox and throws :

    Video format or MIME type is not supported

    I have this code in my model :

    has_attached_file :videod, :styles => { 
    
                        medium => { :geometry => "640x480", :format => 'mp4' },
    
                       :thumb => { :geometry => "100x100#", :format => 'jpg', :time => 10 }
    
}, :processors => [:ffmpeg]
    
validates_attachment_size :videod, :less_than => 100.megabytes
    
validates_attachment_presence :videod
    
validates_attachment_content_type :videod, :content_type => /\Avideo\/.*\Z/

    I also installed ubuntu-restricted-extras which was required to play it on firefox.

    Result of ffprobe :

    ffprobe version 2.4.3-1ubuntu1~trusty6 Copyright (c) 2007-2014 the FFmpeg developers
    
built on Nov 22 2014 17:07:19 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
    
configuration: --prefix=/usr --extra-version='1ubuntu1~trusty6' --build-suffix=-ffmpeg --toolchain=hardened --extra-cflags= --extra-cxxflags= --libdir=/usr/lib/x86_64-linux-gnu --shlibdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --enable-shared --disable-stripping --enable-avresample --enable-avisynth --enable-fontconfig --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-opengl --enable-x11grab --enable-libxvid --enable-libx265 --enable-libdc1394 --enable-libiec61883 --enable-libzvbi --enable-libzmq --enable-frei0r --enable-libx264 --enable-libsoxr --enable-openal --enable-libopencv
    
  libavutil      54.  7.100 / 54.  7.100
    
  libavcodec     56.  1.100 / 56.  1.100
    
  libavformat    56.  4.101 / 56.  4.101
    
  libavdevice    56.  0.100 / 56.  0.100
    
  libavfilter     5.  1.100 /  5.  1.100
    
  libavresample   2.  1.  0 /  2.  1.  0
    
  libswscale      3.  0.100 /  3.  0.100
    
  libswresample   1.  1.100 /  1.  1.100
    
  libpostproc    53.  0.100 / 53.  0.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'SampleVideo_360x240_2mb.mp4':
    
Metadata:
    
  major_brand     : isom
    
  minor_version   : 512
    
  compatible_brands: isomiso2avc1mp41
    
  creation_time   : 1970-01-01 00:00:00
    
  encoder         : Lavf53.24.2
    
Duration: 00:00:26.80, start: 0.000000, bitrate: 626 kb/s
    
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 239 kb/s, 15 fps, 15 tbr, 15360 tbn, 30 tbc (default)
    
Metadata:
    
  creation_time   : 1970-01-01 00:00:00
    
  handler_name    : VideoHandler
    
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 383 kb/s (default)
    
Metadata:
    
  creation_time   : 1970-01-01 00:00:00
    
  handler_name    : SoundHandler

    After ffmpeg -i :

    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'SampleVideo_360x240_2mb.mp4':
    
Metadata:
    
  major_brand     : isom
    
  minor_version   : 512
    
  compatible_brands: isomiso2avc1mp41
    
  creation_time   : 1970-01-01 00:00:00
    
  encoder         : Lavf53.24.2
    
Duration: 00:00:26.80, start: 0.000000, bitrate: 626 kb/s
    
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 239 kb/s, 15 fps, 15 tbr, 15360 tbn, 30 tbc (default)
    
Metadata:
    
  creation_time   : 1970-01-01 00:00:00
    
  handler_name    : VideoHandler
    
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 383 kb/s (default)
    
Metadata:
    
  creation_time   : 1970-01-01 00:00:00
    
  handler_name    : SoundHandler

  • Revision 105417 : Version 0.5.0 : On rajoute une lecture des 2 cookies géré par ...

    21 juillet 2017, par pierrekuhn82@… — Log

    Version 0.5.0 : On rajoute une lecture des 2 cookies géré par ​https://contrib.spip.net/CookieChoices et ​https://contrib.spip.net/cookiebar afin de couper les stats de google.

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