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  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • MediaSPIP Player : les contrôles

    26 mai 2010, par

    Les contrôles à la souris du lecteur
    En plus des actions au click sur les boutons visibles de l’interface du lecteur, il est également possible d’effectuer d’autres actions grâce à la souris : Click : en cliquant sur la vidéo ou sur le logo du son, celui ci se mettra en lecture ou en pause en fonction de son état actuel ; Molette (roulement) : en plaçant la souris sur l’espace utilisé par le média (hover), la molette de la souris n’exerce plus l’effet habituel de scroll de la page, mais diminue ou (...)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

Sur d’autres sites (7094)

  • 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.

  • 24 cores, 25 ffmpeg session - cpu looks good but load average high

    9 août 2012, par thevoipman

    I don't know if it's my script or just the system itself, but I definitely don't want to take anything down.

    I am running a centos 6.3 64bit with about 25 sessions of ffmpeg encoding

    1. I am trying to speed up ffmpeg encoding, but it seems like whatever ram or cpu I have, the encoding process still take very long. I have used -threads 0 or even -threads 16 to see if it speed up but it doesn't.

    2. My load average is very high, how can I lower this without terminating ffmpeg tasks ?

    top - 19:33:28 up 13:09,  2 users,  load average: 161.95, 161.07, 161.02
    
Tasks: 523 total,   3 running, 520 sleeping,   0 stopped,   0 zombie
    
Cpu(s): 14.0%us,  1.1%sy, 84.4%ni,  0.1%id,  0.0%wa,  0.0%hi,  0.4%si,  0.0%st
    
Mem:  65943668k total, 65676464k used,   267204k free,   137428k buffers
    
Swap:  8388600k total,   170992k used,  8217608k free, 56438576k cached
    1. Here is my cpu usage :
      08/09/2012      _x86_64_        (24 CPU)
    

    
07:34:15 PM  CPU    %usr   %nice    %sys %iowait    %irq   %soft  %steal  %guest   %idle
    
07:34:15 PM  all   10.83   86.27    0.55    0.03    0.00    0.14    0.00    0.00    2.19
    
07:34:15 PM    0   18.68   69.92    5.82    0.39    0.00    3.22    0.00    0.00    1.97
    
07:34:15 PM    1   11.11   86.26    0.45    0.02    0.00    0.00    0.00    0.00    2.16
    
07:34:15 PM    2   11.07   86.34    0.42    0.02    0.00    0.00    0.00    0.00    2.17
    
07:34:15 PM    3   10.89   86.50    0.43    0.02    0.00    0.00    0.00    0.00    2.16
    
07:34:15 PM    4   11.05   86.31    0.45    0.02    0.00    0.00    0.00    0.00    2.17
    
07:34:15 PM    5   11.07   86.34    0.41    0.01    0.00    0.00    0.00    0.00    2.16
    
07:34:15 PM    6   12.79   84.56    0.48    0.06    0.00    0.07    0.00    0.00    2.05
    
07:34:15 PM    7   11.32   86.34    0.18    0.01    0.00    0.00    0.00    0.00    2.15
    
07:34:15 PM    8   11.49   86.15    0.18    0.01    0.00    0.00    0.00    0.00    2.17
    
07:34:15 PM    9   11.95   85.67    0.19    0.01    0.00    0.00    0.00    0.00    2.18
    
07:34:15 PM   10   11.73   85.90    0.19    0.01    0.00    0.00    0.00    0.00    2.18
    
07:34:15 PM   11   11.56   86.08    0.18    0.01    0.00    0.00    0.00    0.00    2.17
    
07:34:15 PM   12   13.59   82.43    1.33    0.09    0.00    0.00    0.00    0.00    2.56
    
07:34:15 PM   13    8.72   88.76    0.29    0.02    0.00    0.00    0.00    0.00    2.21
    
07:34:15 PM   14    8.84   88.67    0.28    0.02    0.00    0.00    0.00    0.00    2.20
    
07:34:15 PM   15    8.76   88.71    0.32    0.02    0.00    0.00    0.00    0.00    2.19
    
07:34:15 PM   16    8.73   88.75    0.29    0.02    0.00    0.00    0.00    0.00    2.21
    
07:34:15 PM   17    8.76   88.75    0.26    0.02    0.00    0.00    0.00    0.00    2.21
    
07:34:15 PM   18   10.35   87.16    0.24    0.02    0.00    0.00    0.00    0.00    2.23
    
07:34:15 PM   19    9.16   88.48    0.17    0.01    0.00    0.00    0.00    0.00    2.17
    
07:34:15 PM   20    9.45   88.19    0.18    0.01    0.00    0.00    0.00    0.00    2.18
    
07:34:15 PM   21    9.62   88.01    0.17    0.01    0.00    0.00    0.00    0.00    2.20
    
07:34:15 PM   22    9.73   87.88    0.17    0.01    0.00    0.00    0.00    0.00    2.20
    
07:34:15 PM   23    9.44   88.21    0.16    0.01    0.00    0.00    0.00    0.00    2.18

    Please let me know if I'm seeing any trouble coming up if I keep on adding more ffmpeg's tasks

  • FFMPEG, pixelated frames, and webm format

    22 septembre 2016, par Abel Mohler

    It seems like every time I split a .webm video, half or more of the frames are pixelated and distorted.

    My configuration looks like the following :

    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 16:35:16 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

    Does anyone have any experience with something similar to this ? When I play the same videos with a standard ffmpeg player on the same system, they look just fine.

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