qt5GstreamerExample:Qt5 Gstreamer 示例

# Qt5 Gstreamer Example ## General Instructions 1. Install Qt Gstreamer from the source: - http://gstreamer.freedesktop.org/modules/qt-gstreamer.html - Add `-DQT_VERSION=5` compilation flag, as here: http://cgit.freedesktop.org/gstreamer/qt-gstreamer/tree/README#n88 2. Follow the doc here: http://gstreamer.freedesktop.org/data/doc/gstreamer/head/qt-gstreamer/html/build_system_integration.html to link with libraries like here: http://cgit.freedesktop.org/gstreamer/qt-gstreamer/tree/examples/appsink-src/CMakeLists.txt#n21 3. If needed, copy locally folder with `cmake` modules: http://cgit.freedesktop.org/gstreamer/qt-gstreamer/tree/cmake/modules and add them to `CMakeLists.txt` as exmplained here: https://github.com/rpavlik/cmake-modules with `list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules")` 4. Profit: `./soundlink mySong.mp3` ## Qt5 Build Instructions ``` drasko@Lenin:~/qt5/qt5GstreamerExample$ mkdir build drasko@Lenin:~/qt5/qt5GstreamerExample$ cd build/ drasko@Lenin:~/qt5/qt5GstreamerExample/build$ cmake .. -- The C compiler identification is GNU 4.9.2 -- The CXX compiler identification is GNU 4.9.2 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Boost hasn't been found yet. Looking... -- Boost version: 1.55.0 -- GCC 4.5 or later detected. Enabling C++0x support in QTGSTREAMER_FLAGS. -- Configuring done -- Generating done -- Build files have been written to: /home/drasko/qt5/qt5GstreamerExample/build drasko@Lenin:~/qt5/qt5GstreamerExample/build$ make -j 8 Scanning dependencies of target soundlink [100%] Building CXX object CMakeFiles/soundlink.dir/main.cpp.o Linking CXX executable soundlink [100%] Built target soundlink drasko@Lenin:~/qt5/qt5GstreamerExample/build$ ./soundlink ~/audio/BobMarley-Jamming.mp3 ```