kCMSampleBufferAttachmentKey_DroppedFrameReason
Indicates the reason the current video frame was dropped (type CFString).
Declaration
let kCMSampleBufferAttachmentKey_DroppedFrameReason: CFStringDiscussion
Sample buffers with this attachment contain no image or data buffer. They mark a dropped video frame. This attachment identifies the reason the frame was dropped. The value for this key is one of the string constants in Sample Buffer Dropped Frame Reasons.
See Also
Sample Buffer Keys
kCMSampleBufferAttachmentKey_DisplayEmptyMediaImmediatelykCMSampleBufferAttachmentKey_DrainAfterDecodingkCMSampleBufferDroppedFrameReason_FrameWasLatekCMSampleBufferDroppedFrameReason_OutOfBufferskCMSampleBufferDroppedFrameReason_DiscontinuitykCMSampleBufferAttachmentKey_DroppedFrameReasonInfokCMSampleBufferDroppedFrameReasonInfo_CameraModeSwitchkCMSampleBufferAttachmentKey_EmptyMediakCMSampleBufferAttachmentKey_EndsPreviousSampleDurationkCMSampleBufferAttachmentKey_FillDiscontinuitiesWithSilencekCMSampleBufferAttachmentKey_ForceKeyFramekCMSampleBufferAttachmentKey_GradualDecoderRefreshkCMSampleBufferAttachmentKey_PermanentEmptyMediakCMSampleBufferAttachmentKey_PostNotificationWhenConsumedkCMSampleBufferAttachmentKey_ResetDecoderBeforeDecoding