defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer"

I use the static library of QT5.11.1，But get the hint：defaultServiceProvider::requestService(): no service found for - "org.qt-project.qt.mediaplayer"

I add “QTPLUGIN += dsengine ”  to .pro, and add "Q_IMPORT_PLUGIN(dsengine)" to main.cpp.

But compile error：

main.obj:-1: error: LNK2001: 无法解析的外部符号 "struct QStaticPlugin const __cdecl qt_static_plugin_dsengine(void)" (?qt_static_plugin_dsengine@@YA?BUQStaticPlugin@@XZ)

there two lib in path E:\Qt5.11.2\Qt-msvc2015-x64-static\plugins\mediaservice：

dsengine.lib and qtmedia_audioengine.lib。

how  should I use static libraries to develop video and audio programs ？