SINVideoFrameCallback

Objective-C

@protocol SINVideoFrameCallback <NSObject>

Swift

protocol SINVideoFrameCallback : NSObjectProtocol

Video frame handler must adopt SINVideoFrameCallback protocol


                    
                    
                    -onFrame:completionHandler:

Callback handler that can be used to post-process video frames.

Important

The callback handler implementation must retain the input CVPixelBuffer object using CVPixelBufferRetain, and release it after invoking the completion handler, using CVPixelBufferRelease.

Important

Invoking the completionHandler is mandatory.

Declaration

Objective-C

- (void)onFrame:(CVPixelBufferRef)cvPixelBuffer
    completionHandler:(void (^)(CVPixelBufferRef))completionHandler;

Swift

func onFrame(_ cvPixelBuffer: CVPixelBuffer!) async -> CVPixelBuffer?

Parameters

`cvPixelBuffer`	The raw video frame buffer.
`completionHandler`	Completion handler block, to be invoked with processed output pixel buffer as argument.