pub unsafe static kVTDecompressionPropertyKey_OnlyTheseFrames: &'static CFStringAvailable on crate feature
VTDecompressionProperties only.Expand description
Requests that frames be filtered by type.
This is an optional property for video decoders to implement. If kVTDecompressionPropertyKey_ReducedFrameDelivery is supported and used in conjunction with this property, the ReducedFrameDelivery is the proportion of the frames selected by this property: 0.25 and IFrames would indicate that only one I frame in every four should be delivered.
See also Apple’s documentation