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  • Soumettre améliorations et plugins supplémentaires

    10 avril 2011

    Si vous avez développé une nouvelle extension permettant d’ajouter une ou plusieurs fonctionnalités utiles à MediaSPIP, faites le nous savoir et son intégration dans la distribution officielle sera envisagée.
    Vous pouvez utiliser la liste de discussion de développement afin de le faire savoir ou demander de l’aide quant à la réalisation de ce plugin. MediaSPIP étant basé sur SPIP, il est également possible d’utiliser le liste de discussion SPIP-zone de SPIP pour (...)

  • D’autres logiciels intéressants

    12 avril 2011, par

    On ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
    La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
    On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
    Videopress
    Site Internet : (...)

  • 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 (...)

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  • FFMPEG preset is not found ? Linux Cent OS 6

    25 août 2012, par Darius

    I ran this command

    ffmpeg -i v-16418145218d8d7abdaabec46beb22ecffd2f5d1625.flv -y -acodec aac -ac 2 -ab 160k -vcodec libx264 -vpre iPod640 -vpre slow -f mp4 -threads 0 OUTPUT.mp4

    Got this response :

    [flv @ 0x10ff670]Estimating duration from bitrate, this may be inaccurate
    

    
Seems stream 0 codec frame rate differs from container frame rate: 1000.00 (1000/1) -> 25.00 (25/1)
    
Input #0, flv, from 'v-16418145218d8d7abdaabec46beb22ecffd2f5d1625.flv':
    
  Metadata:
    
    duration        : 14
    
    width           : 320
    
    height          : 240
    
    videodatarate   : 500
    
    framerate       : 25
    
    videocodecid    : 2
    
    audiodatarate   : 0
    
    audiosamplerate : 22050
    
    audiosamplesize : 16
    
    stereo          : true
    
    audiocodecid    : 2
    
    filesize        : 912970
    
  Duration: 00:00:13.92, start: 0.000000, bitrate: 576 kb/s
    
    Stream #0.0: Video: flv, yuv420p, 320x240, 512 kb/s, 25 tbr, 1k tbn, 1k tbc
    
    Stream #0.1: Audio: mp3, 22050 Hz, 2 channels, s16, 64 kb/s
    
File for preset 'iPod640' not found

    But after doing a find, this is what I found.

    /usr/share/ffmpeg/libx264-ipod320.ffpreset
    
/usr/share/ffmpeg/libx264-ipod640.ffpreset **** ITS HERE ******
    
/usr/share/ffmpeg/libx264-lossless_fast.ffpreset
    
/usr/share/ffmpeg/libx264-lossless_max.ffpreset
    
/usr/share/ffmpeg/libx264-lossless_medium.ffpreset
    
/usr/share/ffmpeg/libx264-lossless_slow.ffpreset
    
/usr/share/ffmpeg/libx264-lossless_slower.ffpreset
    
/usr/share/ffmpeg/libx264-lossless_ultrafast.ffpreset
    
/usr/share/ffmpeg/libx264-main.ffpreset
    
/usr/share/ffmpeg/libx264-max.ffpreset
    
/usr/share/ffmpeg/libx264-medium.ffpreset
    
/usr/share/ffmpeg/libx264-medium_firstpass.ffpreset
    
/usr/share/ffmpeg/libx264-normal.ffpreset
    
/usr/share/ffmpeg/libx264-placebo.ffpreset
    
/usr/share/ffmpeg/libx264-placebo_firstpass.ffpreset
    
/usr/share/ffmpeg/libx264-slow.ffpreset
    
/usr/share/ffmpeg/libx264-slow_firstpass.ffpreset
    
/usr/share/ffmpeg/libx264-slower.ffpreset

    I alos tried with -vpre libx264-ipod640 and still no luck. I get preset libx264-ipod640 is not found.... Do i have to enable presets somehow ? ffmpeg — enable presets ? or something ?

    ** EDIT : My ffmpeg version info **

    FFmpeg version 0.6.5, Copyright (c) 2000-2010 the FFmpeg developers
    
  built on Jan 29 2012 17:52:15 with gcc 4.4.5 20110214 (Red Hat 4.4.5-6)
    
  configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdc1394 --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
    
  libavutil     50.15. 1 / 50.15. 1
    
  libavcodec    52.72. 2 / 52.72. 2
    
  libavformat   52.64. 2 / 52.64. 2
    
  libavdevice   52. 2. 0 / 52. 2. 0
    
  libavfilter    1.19. 0 /  1.19. 0
    
  libswscale     0.11. 0 /  0.11. 0
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
FFmpeg 0.6.5
    
libavutil     50.15. 1 / 50.15. 1
    
libavcodec    52.72. 2 / 52.72. 2
    
libavformat   52.64. 2 / 52.64. 2
    
libavdevice   52. 2. 0 / 52. 2. 0
    
libavfilter    1.19. 0 /  1.19. 0
    
libswscale     0.11. 0 /  0.11. 0
    
libpostproc   51. 2. 0 / 51. 2. 0

  • How can I add audio (mp3) to a flv (just video) with ffmpeg ?

    18 juillet 2012, par domi

    How can I add sound from a mp3-file to a flv file that has no audio ?
    (With ffmpeg)

    When I use

    ffmpeg -i video.flv -i audio.mp3 -acodec copy -vcodec copy -ab 128k -ar 44100 output.flv

    I get this output :

    FFmpeg version SVN-r12758, Copyright (c) 2000-2008 Fabrice Bellard, et al.
  configuration : —enable-shared —prefix=/usr
  libavutil version : 49.6.0
  libavcodec version : 51.54.0
  libavformat version : 52.13.0
  libavdevice version : 52.0.0
  built on Apr  7 2008 09:00:42, gcc : 4.1.2 20070626 (Red Hat 4.1.2-14)
[flv @ 0x2b72415e00c0]Could not find codec parameters (Audio : 0x0000)
Input #0, flv, from 'video.flv' :
  Duration : 00:00:03.2, start : 0.000000, bitrate : N/A
    Stream #0.0 : Video : flv, yuv420p, 468x312, 1000.00 tb(r)
    Stream #0.1 : Audio : 0x0000
mdb:511, lastbuf:0 skipping granule 0
mdb:511, lastbuf:0 skipping granule 0
mdb:511, lastbuf:0 skipping granule 1
mdb:511, lastbuf:0 skipping granule 1
Input #1, mp3, from 'audio.mp3' :
  Duration : 00:01:00.9, start : 0.000000, bitrate : 128 kb/s
    Stream #1.0 : Audio : mp3, 44100 Hz, stereo, 128 kb/s
Output #0, flv, to 'output.flv' :
    Stream #0.0 : Video : flv, yuv420p, 468x312, q=2-31, 1000.00 tb(c)
    Stream #0.1 : Audio : 0x0000
Stream mapping :
  Stream #0.0 -> #0.0
  Stream #0.1 -> #0.1
[flv @ 0x2b72415e00c0]sample rate not set
Could not write header for output file #0 (incorrect codec parameters ?)

  • Open .avi with OpenCV 2.4 & Ubuntu 11.04

    25 juin 2012, par CTZStef

    I try to open and read video files in .avi format using OpenCV. Here is my code :

    void MainWindow::on_actionOuvrir_fichier_triggered()
    
 140    +   {
    
 141    +    //mettre a -1 streamId
    
 142    +    streamId = -1;
    
 143    +    //ouvrir fenetre navigation fichiers pour recuperer path vers .avi
    
 144    +    QString fileName = QFileDialog::getOpenFileName(this,tr("Ouvrir fichier video"),"/home",
    
 145    +    tr("Videos (*.avi)"));
    
 146    +    std::string utf8_text = fileName.toUtf8().constData();
    
 147    +    //ouvrir .avi
    
 148    +    capture = new VideoCapture(utf8_text);
    
 149    +    //check ouverture
    
 150    +    if(!capture->isOpened())
    
 151    +    cout << "probleme ouverture fichier video" << endl;
    
 152    +    //calculer delay between each frame in ms
    
 153    +    rate = capture->get(CV_CAP_PROP_FPS);
    
 154    +    delay = 1000 / rate;
    
 155    +    //demarrer timer recordId
    
 156    +    recordId = startTimer(delay);
    
 157    +    //capture premiere frame
    
 158    +    if(!capture->read(in))
    
 159    +    cout << "probleme lecture frame fichier video" << endl;
    
 160    +   }

    I get no problem at compilation time, but I can't open a video file. While in debug mode I saw that string utf8_text had the good absolute path to my video, so obviously the problem comes from the constructor of the VideoCapture object. Then, I tried to install every codec pack I could or thought was relevant. But the problem is still there, capture->isOpened() still returns false, and in debug mode I can see that capture contains nothing.

    I am lost here, don't know what to try next. Any idea ??

    Thanks !!!

    [EDIT]
    Just in case, here is the output of ffmpeg -i myFile.avi

    faraday@faraday-Compaq-Evo-D510-e-pc:~/QtProjects/visionDev$ ffmpeg -i 1.avi
    
FFmpeg version 0.6.6-4:0.6.6-0ubuntu0.11.04.1, Copyright (c) 2000-2010 the Libav developers
    
  built on Jun 12 2012 16:28:21 with gcc 4.5.2
    
  configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
    
  WARNING: library configuration mismatch
    
  libavutil   configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
    
  libavcodec  configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
    
  libavformat configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
    
  libavdevice configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
    
  libavfilter configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
    
  libswscale  configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
    
  libpostproc configuration: --extra-version=4:0.6.6-0ubuntu0.11.04.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
    
  libavutil     50.15. 1 / 50.15. 1
    
  libavcodec    52.72. 2 / 52.72. 2
    
  libavformat   52.64. 2 / 52.64. 2
    
  libavdevice   52. 2. 0 / 52. 2. 0
    
  libavfilter    1.19. 0 /  1.19. 0
    
  libswscale     0.11. 0 /  0.11. 0
    
  libpostproc   51. 2. 0 / 51. 2. 0
    
Input #0, avi, from '1.avi':
    
  Duration: 00:02:35.39, start: 0.000000, bitrate: 110595 kb/s
    
    Stream #0.0: Video: rawvideo, bgr24, 640x480, 15 tbr, 15 tbn, 15 tbc
    
At least one output file must be specified

    I do not see anything wrong here, but I thought maybe someone will.

    I really need this to work soon, and right now it's a dead end...

    thanks

    [EDIT 2]

    I have just read this in the book OpenCV 2 Computer Vision Application Programming Cookbook by R. Laganiere :

    It is important to note that in order to open the specified video
    file, your computer must have the corresponding codec installed,
    otherwise cv::VideoCapture will not be able to understand the input
    file. Normally, if you are able to open your video file with a video
    player on your machine (such as the Windows Media Player), then OpenCV
    should also be able to read this file.

    Well, on my machine it is not that easy mister Laganiere... I hate this book.

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