/usr/include/ffmpeg/common.h:67: error: array type has incomplete element type
/usr/include/ffmpeg/common.h:71: error: array type has incomplete element type
vf_qp.c: In function 'put_image':
vf_qp.c:144: warning: pointer targets in assignment differ in signedness
make[1]: *** [vf_qp.o] Error 1
make[1]: Leaving directory `/home/jon/main/libmpcodecs'
make: *** [libmpcodecs/libmpcodecs.a] Error 2