VideoGraph.Listener

Kotlin |Java

public interface VideoGraph.Listener

Listener for video frame processing events.

Summary

Public methods
`default void`	`onEnded(long finalFramePresentationTimeUs)` Called after the `VideoGraph` has rendered its final output frame.
`default void`	`onError(VideoFrameProcessingException exception)` Called when an exception occurs during video frame processing.
`default void`	`onOutputFrameAvailableForRendering( long framePresentationTimeUs, boolean isRedrawnFrame )` Called when an output frame with the given `framePresentationTimeUs` becomes available for rendering.
`default void`	`onOutputFrameRateChanged(float frameRate)` Called when the output frame rate changes.
`default void`	`onOutputSizeChanged(int width, int height)` Called when the output size changes.

default void onEnded(long finalFramePresentationTimeUs)

Called after the VideoGraph has rendered its final output frame.

Parameters
`long finalFramePresentationTimeUs`	The timestamp of the last output frame, in microseconds.

default void onError(VideoFrameProcessingException exception)

Called when an exception occurs during video frame processing.

If this is called, the calling VideoGraph must immediately be released.

default void onOutputFrameAvailableForRendering(
    long framePresentationTimeUs,
    boolean isRedrawnFrame
)

Called when an output frame with the given framePresentationTimeUs becomes available for rendering.

Parameters
`long framePresentationTimeUs`	The presentation time of the frame, in microseconds.
`boolean isRedrawnFrame`	Whether the frame is a frame that is `redrawn`, redrawn frames are rendered directly thus `renderOutputFrame` must not be called on such frames.

default void onOutputFrameRateChanged(float frameRate)

Called when the output frame rate changes.

Parameters
`float frameRate`	The output frame rate in frames per second, or `NO_VALUE` if unknown.

default void onOutputSizeChanged(int width, int height)

Called when the output size changes.

Parameters
`int width`	The new output width in pixels.
`int height`	The new output width in pixels.