dxa9: swap UV explicitly for YV12
DXA9_YV12 is only used for I420, YV12 and I420_10L. The NV12 to I420 only has swapped planes when the output is YV12.
DXA9_YV12 is only used for I420, YV12 and I420_10L. The NV12 to I420 only has swapped planes when the output is YV12.
VideoLAN code repository instance