frontends/va: Fix deinterlace bottom field first flag
Fixes an issue with mpv, where deinterlacing causes the picture to be offset by one line every other frame in the video.
Signed-off-by: Thong Thai thong.thai@amd.com
Fixes an issue with mpv, where deinterlacing causes the picture to be offset by one line every other frame in the video.
Signed-off-by: Thong Thai thong.thai@amd.com