kCMSampleBufferConsumerNotification_BufferConsumed
Optionally posted when a sample buffer is consumed.
Declaration
let kCMSampleBufferConsumerNotification_BufferConsumed: CFStringDiscussion
If a sample buffer has a value for the kCMSampleBufferAttachmentKey_PostNotificationWhenConsumed attachment, an object that consumes the sample buffer should post this notification with itself as the notifying object and the attachment value as the userInfo dictionary.