Webrtc视频通话屏幕有时变黑，应用程序崩溃

Question

在较低分辨率的设备中，大多数时候屏幕在渲染视图时变黑。得到以下错误如下：

java.lang.RuntimeException: glUseProgram: GLES20 error: 1285
at org.webrtc.GlUtil.checkNoGLES2Error(GlUtil.java:29)
at org.webrtc.GlShader.useProgram(GlShader.java:117)
at org.webrtc.GlRectDrawer.prepareShader(GlRectDrawer.java:198)
at org.webrtc.GlRectDrawer.drawYuv(GlRectDrawer.java:152) org.webrtc.SurfaceViewRenderer.renderFrameOnRenderThread(SurfaceViewRenderer.java:492)
at org.webrtc.SurfaceViewRenderer.access$000(SurfaceViewRenderer.java:38)
at org.webrtc.SurfaceViewRenderer$1.run(SurfaceViewRenderer.java:109)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loop(Looper.java:194)
at android.os.HandlerThread.run(HandlerThread.java:61)

我在给定方法中找到了在连接呼叫之前创建本地媒体流的问题。

public void createMediaStream(final EglBase.Context renderEGLContext,   final VideoRenderer.Callbacks localRender, final boolean isAudioCallOnly) {
    this.localRender = localRender;
    executor.execute(new Runnable() {
        @Override
        public void run() {
            createMediaConstraintsInternal();
            if (mediaStream != null)
                return;
            mediaStream = factory.createLocalMediaStream("ARDAMS");
            if (videoCallEnabled) {
                factory.setVideoHwAccelerationOptions(renderEGLContext, renderEGLContext);
                String cameraDeviceName = CameraEnumerationAndroid.getDeviceName(0);
                String frontCameraDeviceName =
                        CameraEnumerationAndroid.getNameOfFrontFacingDevice();
                if (numberOfCameras > 1 && frontCameraDeviceName != null) {
                    cameraDeviceName = frontCameraDeviceName;
                }
                AppData.showLogMessage("Opening camera: "+ cameraDeviceName);
                videoCapturer = VideoCapturerAndroid.create(cameraDeviceName, null, peerConnectionParameters.captureToTexture ? renderEGLContext : null);
                if (videoCapturer == null) {
                    reportError("Failed to open camera");
                    return;
                }
                mediaStream.addTrack(createVideoTrack(videoCapturer));
               // videoToggle(isAudioCallOnly);


            }

            mediaStream.addTrack(factory.createAudioTrack(
                    AUDIO_TRACK_ID,
                    factory.createAudioSource(audioConstraints)));


        }
    });

}