DeinterlacerControl
When set to NORMAL (default), the deinterlacer does not convert frames that are tagged in metadata as progressive. It will only convert those that are tagged as some other type. - When set to FORCE_ALL_FRAMES, the deinterlacer converts every frame to progressive - even those that are already tagged as progressive. Turn Force mode on only if there is a good chance that the metadata has tagged frames as progressive when they are not progressive. Do not turn on otherwise; processing frames that are already progressive into progressive will probably result in lower quality video.