pub unsafe static kVTDecompressionPropertyKey_ReducedFrameDelivery: &'static CFStringAvailable on crate feature
VTDecompressionProperties only.Expand description
Requests frame dropping.
This is an optional property for video decoders to implement. This number is a fraction between 0.0 and 1.0 that indicates what proportion of frames should be delivered – others may be dropped. For example, 0.25 would indicate that only one frame in every 4 should be delivered. This is a guideline; actual selection of frames is up to the decoder, which will know which frames can be skipped without harm. If the decoder does not support this property directly, but reports that the content has no interframe dependencies, the video toolbox may step in and perform simple frame dropping.
See also Apple’s documentation