Recherche avancée

Médias (3)

Mot : - Tags -/collection

Autres articles (17)

  • 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

  • Librairies et logiciels spécifiques aux médias

    10 décembre 2010, par

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (5055)

  • Revision 52fc4f8a78 : Merge "Simplify vp9_adapt_nmv_probs" into experimental

    11 mars 2013, par John Koleszar

    Changed Paths : Modify /vp9/common/vp9_entropymv.c Merge "Simplify vp9_adapt_nmv_probs" into experimental

  • avfilter : avoid direct access to "frame"->channels

    10 mars 2013, par Michael Niedermayer

    avfilter : avoid direct access to "frame"->channels

  • 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 ?

Navigation