avcodec.pxd:322:13: 'opaque' redeclared

include\libavcodec/avcodec.pxd:322:13: 'opaque' redeclared

Error compiling Cython file:
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...
        int profile
        AVDiscard skip_frame

        AVFrame* coded_frame

        void* opaque
  



        # User Data
        void *opaque