check-va-api: tell MPEG decoder that we have no reference frames available
The following discussion from !587 (merged) should be addressed:
-
@xexaxo started a discussion: (+1 comment) Looking at the mpeg2
pic_param_mpeg2
- these two should probably be set toVA_INVALID_SURFACE
.VASurfaceID forward_reference_picture; VASurfaceID backward_reference_picture;
We should only do this if someone who knows VA-API (@xexaxo or otherwise) is completely confident that it's correct and not going to lead to assertion failures or other badness.