Package com.telnyx.webrtc.lib

Class SurfaceEglRenderer

java.lang.Object

com.telnyx.webrtc.lib.EglRenderer

com.telnyx.webrtc.lib.SurfaceEglRenderer

All Implemented Interfaces:

SurfaceHolder.Callback, VideoSink

public class SurfaceEglRenderer
extends EglRenderer
implements SurfaceHolder.Callback

Display the video stream on a Surface. renderFrame() is asynchronous to avoid blocking the calling thread. This class is thread safe and handles access from potentially three different threads: Interaction from the main app in init, release and setMirror. Interaction from C++ rtc::VideoSinkInterface in renderFrame. Interaction from SurfaceHolder lifecycle in surfaceCreated, surfaceChanged, and surfaceDestroyed.

Nested Class Summary

Nested classes/interfaces inherited from class com.telnyx.webrtc.lib.EglRenderer

EglRenderer.ErrorCallback, EglRenderer.FrameListener, EglRenderer.RenderListener

Constructor Summary

Constructors

Constructor	Description
SurfaceEglRenderer(String name)	In order to render something, you must first call init().

Method Summary

Modifier and Type	Method	Description
void	disableFpsReduction()
void	init(EglBase.Context sharedContext, int[] configAttributes, RendererCommon.GlDrawer drawer)	Same as above with usePresentationTimeStamp set to false.
void	init(EglBase.Context sharedContext, RendererCommon.RendererEvents rendererEvents, int[] configAttributes, RendererCommon.GlDrawer drawer)	Initialize this class, sharing resources with `sharedContext`.
void	onFrame(VideoFrame frame)	Implementations should call frame.retain() if they need to hold a reference to the frame after this function returns.
void	pauseVideo()
void	setFpsReduction(float fps)	Limit render framerate.
void	surfaceChanged(SurfaceHolder holder, int format, int width, int height)
void	surfaceCreated(SurfaceHolder holder)
void	surfaceDestroyed(SurfaceHolder holder)

Methods inherited from class com.telnyx.webrtc.lib.EglRenderer

addFrameListener, addFrameListener, addFrameListener, addRenderListener, clearImage, clearImage, createEglSurface, createEglSurface, init, init, init, printStackTrace, release, releaseEglSurface, removeFrameListener, removeRenderListener, setErrorCallback, setLayoutAspectRatio, setMirror, setMirrorVertically

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SurfaceEglRenderer

public SurfaceEglRenderer(String name)

In order to render something, you must first call init().

Method Details

init

public void init(EglBase.Context sharedContext,
 RendererCommon.RendererEvents rendererEvents,
 int[] configAttributes,
 RendererCommon.GlDrawer drawer)

Initialize this class, sharing resources with `sharedContext`. The custom `drawer` will be used for drawing frames on the EGLSurface. This class is responsible for calling release() on `drawer`. It is allowed to call init() to reinitialize the renderer after a previous init()/release() cycle.

init

public void init(EglBase.Context sharedContext,
 int[] configAttributes,
 RendererCommon.GlDrawer drawer)

Description copied from class: EglRenderer

Same as above with usePresentationTimeStamp set to false.

Overrides:

init in class EglRenderer

See Also:

• EglRenderer.init(EglBase.Context, int[], RendererCommon.GlDrawer, boolean)

setFpsReduction

public void setFpsReduction(float fps)

Limit render framerate.

Overrides:

setFpsReduction in class EglRenderer

Parameters:

fps - Limit render framerate to this value, or use Float.POSITIVE_INFINITY to disable fps reduction.

disableFpsReduction

public void disableFpsReduction()

Overrides:

disableFpsReduction in class EglRenderer

pauseVideo

public void pauseVideo()

Overrides:

pauseVideo in class EglRenderer

onFrame

public void onFrame(VideoFrame frame)

Description copied from interface: VideoSink

Implementations should call frame.retain() if they need to hold a reference to the frame after this function returns. Each call to retain() should be followed by a call to frame.release() when the reference is no longer needed.

Specified by:

onFrame in interface VideoSink

Overrides:

onFrame in class EglRenderer

surfaceCreated

public void surfaceCreated(SurfaceHolder holder)

Specified by:

surfaceCreated in interface SurfaceHolder.Callback

surfaceDestroyed

public void surfaceDestroyed(SurfaceHolder holder)

Specified by:

surfaceDestroyed in interface SurfaceHolder.Callback

surfaceChanged

public void surfaceChanged(SurfaceHolder holder,
 int format,
 int width,
 int height)

Specified by:

surfaceChanged in interface SurfaceHolder.Callback