Question

我试图为QT编译GStreamer包装器，所以我使用QT 5.12.3和Mingw32 7.3.0下载了两个软件包iam
1-gstreamer-1.0-devel-mingw-x86-1.16.0.msi
2-gstreamer-1.0-mingw-x86-1.16.0.msi
然后安装它们，并将bin文件夹添加到系统环境中，以便Cmake可以在编译QtGstreamer时识别GStreamer所需的依赖关系，我下载了最新版本的QtGStreamer 1.2.0，并使用Cmake生成了文件， QT，Boost和GStreamer的所有依赖项
当我执行 mingw32-make 的步骤时，我在 17％上出现了错误

In file included from C:/boost_1_69_0/boost/detail/workaround.hpp:8:0,
                 from C:/boost_1_69_0/boost/mpl/aux_/config/workaround.hpp:17,
                 from C:/boost_1_69_0/boost/mpl/aux_/static_cast.hpp:17,
                 from C:/boost_1_69_0/boost/mpl/aux_/value_wknd.hpp:17,
                 from C:/boost_1_69_0/boost/mpl/if.hpp:17,
                 from D:/build/qtgstreamer/qt-gstreamer-master/src/QGlib/type.h:24,
                 from D:\build\qtgstreamer\qt-gstreamer-master\src\QGst\global.h:25,
                 from D:\build\qtgstreamer\qt-gstreamer-master\src\QGst\caps.h:20,
                 from D:\build\qtgstreamer\qt-gstreamer-master\src\QGst\caps.cpp:17:
C:/boost_1_69_0/boost/type_traits/detail/config.hpp:85:69: warning: "__clang_major___WORKAROUND_GUARD" is not defined, evaluates to 0 [-Wundef]
       && !BOOST_WORKAROUND(BOOST_MSVC, < 1900) && !BOOST_WORKAROUND(__clang_major__, <= 4)
                                                                     ^
C:/boost_1_69_0/boost/config/workaround.hpp:246:10: note: in definition of macro 'BOOST_WORKAROUND'
        ((symbol ## _WORKAROUND_GUARD + 0 == 0) &&     \
          ^~~~~~
C:/boost_1_69_0/boost/type_traits/detail/config.hpp:85:69: warning: "__clang_major__" is not defined, evaluates to 0 [-Wundef]
       && !BOOST_WORKAROUND(BOOST_MSVC, < 1900) && !BOOST_WORKAROUND(__clang_major__, <= 4)
                                                                     ^
C:/boost_1_69_0/boost/config/workaround.hpp:247:9: note: in definition of macro 'BOOST_WORKAROUND'
        (symbol != 0) && (1 % (( (symbol test) ) + 1)))
         ^~~~~~
In file included from D:/gstreamer/1.0/x86/include/gstreamer-1.0/gst/gstbuffer.h:30:0,
                 from D:/gstreamer/1.0/x86/include/gstreamer-1.0/gst/gstpad.h:70,
                 from D:/gstreamer/1.0/x86/include/gstreamer-1.0/gst/gstelement.h:87,
                 from D:/gstreamer/1.0/x86/include/gstreamer-1.0/gst/gstbin.h:27,
                 from D:/gstreamer/1.0/x86/include/gstreamer-1.0/gst/gst.h:35,
                 from D:\build\qtgstreamer\qt-gstreamer-master\src\QGst\caps.cpp:22:
D:\build\qtgstreamer\qt-gstreamer-master\src\QGst\caps.cpp: In member function 'void QGst::Caps::append(const CapsPtr&)':
D:/gstreamer/1.0/x86/include/gstreamer-1.0/gst/gstminiobject.h:33:65: error: invalid cast from type 'const CapsPtr {aka const QGlib::RefPointer<QGst::Caps>}' to type 'GstMiniObject* {aka _GstMiniObject*}'
 #define GST_MINI_OBJECT_CAST(obj)          ((GstMiniObject*)(obj))
                                                                 ^
D:/gstreamer/1.0/x86/include/gstreamer-1.0/gst/gstcaps.h:35:47: note: in definition of macro 'GST_CAPS_CAST'
 #define GST_CAPS_CAST(obj)        ((GstCaps*)(obj))
                                               ^~~
D:/gstreamer/1.0/x86/include/gstreamer-1.0/gst/gstcaps.h:249:29: note: in expansion of macro 'GST_CAPS'
 #define gst_caps_copy(caps) GST_CAPS (gst_mini_object_copy (GST_MINI_OBJECT_CAST (caps)))
                             ^~~~~~~~
D:/gstreamer/1.0/x86/include/gstreamer-1.0/gst/gstcaps.h:249:61: note: in expansion of macro 'GST_MINI_OBJECT_CAST'
 #define gst_caps_copy(caps) GST_CAPS (gst_mini_object_copy (GST_MINI_OBJECT_CAST (caps)))
                                                             ^~~~~~~~~~~~~~~~~~~~
D:\build\qtgstreamer\qt-gstreamer-master\src\QGst\caps.cpp:57:40: note: in expansion of macro 'gst_caps_copy'
     gst_caps_append(object<GstCaps>(), gst_caps_copy(caps2));
                                        ^~~~~~~~~~~~~
mingw32-make[2]: *** [src\QGst\CMakeFiles\Qt5GStreamer.dir\build.make:137: src/QGst/CMakeFiles/Qt5GStreamer.dir/caps.cpp.obj] Error 1
mingw32-make[1]: *** [CMakeFiles\Makefile2:309: src/QGst/CMakeFiles/Qt5GStreamer.dir/all] Error 2
mingw32-make: *** [Makefile:140: all] Error 2

那我犯了什么错误？
我不知道是否还需要清除我的错误，请告诉我是否需要添加
更新
当我配置Cmake选项时，没有添加qt5declarative Cmake，我将其留空，在对该部分进行搜索后，我发现该部分不再受QT 5.6支持，我不确定问题是否与此相关部分，但总的来说，这是我到目前为止所做的一切。
我的cmake GUI的屏幕截图
预先感谢。

Answer 1

您应该尝试使用Gstreamer 1.14.4

使用Cmake和Mingw32编译器编译QtGstreamer时，QT 5.12.3附带错误

1 个答案: