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MediaPipeTasksVision Framework Reference

ImageEmbedderLiveStreamDelegate

protocol ImageEmbedderLiveStreamDelegate : NSObjectProtocol

This protocol defines an interface for the delegates of ImageEmbedder object to receive results of asynchronous embedding extraction on images (i.e, when runningMode = .liveStream).

The delegate of ImageEmbedder must adopt ImageEmbedderLiveStreamDelegate protocol. The methods in this protocol are optional.


                    
                    
                    imageEmbedder(_:didFinishEmbedding:timestampInMilliseconds:error:)

This method notifies a delegate that the results of asynchronous embedding extraction on an image submitted to the ImageEmbedder is available.

This method is called on a private serial queue created by the ImageEmbedder for performing the asynchronous delegates calls.

Declaration

Swift

optional func imageEmbedder(_ imageEmbedder: MPPImageEmbedder, didFinishEmbedding result: ImageEmbedderResult?, timestampInMilliseconds: Int, error: Error?)

Parameters

`imageEmbedder`	The image embedder which performed the embedding extraction. This is useful to test equality when there are multiple instances of `ImageEmbedder`.
`result`	An `ImageEmbedderResult` object that contains a list of generated image embeddings.
`timestampInMilliseconds`	The timestamp (in milliseconds) which indicates when the input image was sent to the image embedder.
`error`	An optional error parameter populated when there is an error in performing embedding extraction on the input live stream image data.