PreviewingVideoGraph

Kotlin |Java

@UnstableApi
public interface PreviewingVideoGraph extends VideoGraph

Known direct subclasses

PreviewingSingleInputVideoGraph

A Previewing specific implementation of .

A VideoGraph specific to previewing.

Summary

Nested types
`public interface PreviewingVideoGraph.Factory` A factory for creating a `PreviewingVideoGraph`.

Public methods
`abstract void`	`renderOutputFrame(long renderTimeNs)` Renders the oldest unrendered output frame that has become `available for rendering` at the given `renderTimeNs`.

`abstract VideoFrameProcessor`	`getProcessor(int inputId)` Returns the `VideoFrameProcessor` that handles the processing for an input registered via `registerInput`.
`abstract boolean`	`hasProducedFrameWithTimestampZero()` Returns whether the `VideoGraph` has produced a frame with zero presentation timestamp.
`abstract void`	`initialize()` Initialize the `VideoGraph`.
`abstract int`	`registerInput()` Registers a new input to the `VideoGraph`.
`abstract void`	`release()` Releases the associated resources.
`abstract void`	`setOutputSurfaceInfo(@Nullable SurfaceInfo outputSurfaceInfo)` Sets the output surface and supporting information.

abstract void renderOutputFrame(long renderTimeNs)

Renders the oldest unrendered output frame that has become available for rendering at the given renderTimeNs.

This will either render the output frame to the output surface, or drop the frame, per renderTimeNs.

The renderTimeNs may be passed to eglPresentationTimeANDROID depending on the implementation.

Parameters
`long renderTimeNs`	The render time to use for the frame, in nanoseconds. The render time can be before or after the current system time. Use `DROP_OUTPUT_FRAME` to drop the frame, or `RENDER_OUTPUT_FRAME_IMMEDIATELY` to render the frame immediately.