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  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
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  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
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    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
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    Dans un premier temps on (...)

  • 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
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  • Opencv ffmpeg : Video capture ("Filename.avi") crashes on a non development machine - MAC 10.8.2

    8 mars 2013, par Jerry

    I was trying to deploy a simple Qt Opencv Application, the following is the code :

    Qt : .pro file :

    QT       += core gui
    greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
    TARGET = opencvVideoTest
    TEMPLATE = app

    SOURCES += main.cpp\
       mainwindow.cpp

    HEADERS  += mainwindow.h

    FORMS    += mainwindow.ui

    INCLUDEPATH = -I/usr/local/include

    LIBS += -lm -lopencv_core -lopencv_highgui -lopencv_imgproc

    Mainwindow.cpp :

    #include "mainwindow.h"
    #include "ui_mainwindow.h"
    #include <opencv2></opencv2>core/core.hpp>
    #include <opencv></opencv>cv.h>
    #include <opencv2></opencv2>highgui/highgui.hpp>
    #include <opencv2></opencv2>imgproc/imgproc.hpp>


    MainWindow::MainWindow(QWidget *parent) :
       QMainWindow(parent),
       ui(new Ui::MainWindow)
    {
       ui->setupUi(this);

       cv::Mat img;

      cv::VideoCapture cap("BMWM5.avi");

      if(cap.isOpened()){

      for(;;){
          cap.read(img);
          cv::resize(img,img,cv::Size(604,480));
          cv::imshow("Opencv", img);
          cv::waitKey(33);
      }
      }
      else{

      }


    }

    MainWindow::~MainWindow()
    {
       delete ui;
    }

    The above snippet works fine on the development machine, which by the has Opencv 2.4.3, ffmpeg 1.1.2 & Qt 5.0.1. This what happens when I try to deploy, running the otool before using macdeployqt and the output :

    >   /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
    version 169.3.0)   /usr/local/opt/opencv/lib/libopencv_core.2.4.3.dylib
    (compatibility version 2.4.0, current version 2.4.3)
    >  /usr/local/opt/opencv/lib/libopencv_highgui.2.4.3.dylib
    (compatibility version 2.4.0, current version 2.4.3)
    >   /usr/local/opt/opencv/lib/libopencv_imgproc.2.4.3.dylib
      (compatibility version 2.4.0, current version 2.4.3)
    >   /usr/local/Qt5.0.1/5.0.1/clang_64/lib/QtWidgets.framework/Versions/5/QtWidgets
     (compatibility version 5.0.0, current version 5.0.1)
    >   /usr/local/Qt5.0.1/5.0.1/clang_64/lib/QtGui.framework/Versions/5/QtGui
     (compatibility version 5.0.0, current version 5.0.1)
    >   /usr/local/Qt5.0.1/5.0.1/clang_64/lib/QtCore.framework/Versions/5/QtCore
     (compatibility version 5.0.0, current version 5.0.1)
    >   /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL
     (compatibility version 1.0.0, current version 1.0.0)
    >   /System/Library/Frameworks/AGL.framework/Versions/A/AGL
     (compatibility version 1.0.0, current version 1.0.0)
    >   /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current
     version 56.0.0)

    otool after macdeployqt output :

    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 169.3.0)
       @executable_path/../Frameworks/libopencv_core.2.4.3.dylib (compatibility version 2.4.0, current version 2.4.3)
     @executable_path/../Frameworks/libopencv_highgui.2.4.3.dylib (compatibility version 2.4.0, current version 2.4.3)
     @executable_path/../Frameworks/libopencv_imgproc.2.4.3.dylib (compatibility version 2.4.0, current version 2.4.3)
     @executable_path/../Frameworks/QtWidgets.framework/Versions/5/QtWidgets

    (compatibility version 5.0.0, current version 5.0.1)
    @executable_path/../Frameworks/QtGui.framework/Versions/5/QtGui (compatibility version 5.0.0, current version 5.0.1)
    @executable_path/../Frameworks/QtCore.framework/Versions/5/QtCore (compatibility version 5.0.0, current version 5.0.1)
    /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
    /System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
    /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 56.0.0)

    But after deploying it, when I try and run the app on the user's machine it crashes, no error reported either, the exact samething used to happen in Windows but when I copied the opencv_ffmpeg.dll into the exe folder it worked fine. I tried to use the same logic here and failed, then I manually addded each lib files of all the ffmpeg and its dependency into the project folder and still failed. Any other solution, please help ? I'm a newbie to mac dpeloyment. Am i missing or overlooked something ?