predicate(forDownmixAudio:mediaSelectionOption:)
Creates a predicate for downmix audio.
Declaration
class func predicate(forDownmixAudio isDownmixAudio: Bool, mediaSelectionOption: AVMediaSelectionOption?) -> NSPredicateParameters
- isDownmixAudio:
- mediaSelectionOption:
The media selection option for the variant.
Return Value
A predicate object that you use to to create an AVAssetVariantQualifier.
Discussion
Use the returned value, along with other predicates, to express variant preferences.
See Also
Building predicates
predicate(forAudioSampleRate:mediaSelectionOption:operatorType:)predicate(forAudioSampleRate:operatorType:)predicate(forBinauralAudio:)predicate(forBinauralAudio:mediaSelectionOption:)predicate(forChannelCount:mediaSelectionOption:operatorType:)predicate(forChannelCount:operatorType:)predicate(forDownmixAudio:)predicate(forImmersiveAudio:)predicate(forImmersiveAudio:mediaSelectionOption:)predicate(forPresentationHeight:operatorType:)predicate(forPresentationWidth:operatorType:)