Q: qt opencv qt LNK1181 opencv_ffmpeg331_64.dll.lib I want to use opencv 3.3.1 with qt creator. I think configuration is correct but I always get same error:

LNK1181 opencv_ffmpeg331_64.dll.lib. 

I can't tell to compiler this file is dll not a lib.
The Qmake file is:
INCLUDEPATH += D:\opencv\opencv3\build\include
LIBS += -LD:\opencv\opencv3\build\x64\vc14\bin -lopencv_ffmpeg331_64.dll -lopencv_world331.dll
LIBS += -LD:\opencv\opencv3\build\x64\vc14\lib -lopencv_world331.lib

