C++ 声子视频播放器c++；例子

我想在Qt4.7.0中创建视频播放器。我找到了声子库。 我在文档中找到了一个例子，但如果我拿了，我就崩溃了

代码：

错误：

debug/mainwindow.o: In function `MainWindow':

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:16: undefined reference to `_imp___ZN6Phonon11VideoPlayerC1ENS_8CategoryEP7QWidget'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceC1ERK7QString'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11VideoPlayer4playERKNS_11MediaSourceE'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceD1Ev'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceD1Ev'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:16: undefined reference to `_imp___ZN6Phonon11VideoPlayerC1ENS_8CategoryEP7QWidget'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceC1ERK7QString'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11VideoPlayer4playERKNS_11MediaSourceE'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceD1Ev'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceD1Ev'

collect2: ld returned 1 exit status

---

也许有人知道它是什么？

也许你的链接器是。thx add Qt+=声子

debug/mainwindow.o: In function `MainWindow':

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:16: undefined reference to `_imp___ZN6Phonon11VideoPlayerC1ENS_8CategoryEP7QWidget'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceC1ERK7QString'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11VideoPlayer4playERKNS_11MediaSourceE'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceD1Ev'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceD1Ev'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:16: undefined reference to `_imp___ZN6Phonon11VideoPlayerC1ENS_8CategoryEP7QWidget'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceC1ERK7QString'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11VideoPlayer4playERKNS_11MediaSourceE'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceD1Ev'

C:\Qt\2010.05\videoPlayer-build-desktop/../videoPlayer/mainwindow.cpp:21: undefined reference to `_imp___ZN6Phonon11MediaSourceD1Ev'

collect2: ld returned 1 exit status