CameraX with Mediacodec

[jinlong zhu]

I get the Surface through the method createInputSurface() of MediaCodec, and then associate it with CameraX in the following way:

Preview encodePreview = new Preview.Builder()

.setTargetResolution(new Size(1280, 720))

.build();

encodePreview.setSurfaceProvider(new Preview.SurfaceProvider() {

@Override

public void onSurfaceRequested(@NonNull SurfaceRequest request) {

request.provideSurface(mInputSurface, ContextCompat.getMainExecutor(TestActivity.this), new Consumer<SurfaceRequest.Result>() {

@Override

public void accept(SurfaceRequest.Result result) {

// result.getSurface().release();

}

});

}

});

But an exception is thrown when running

Fatal Exception: java.lang.IllegalStateException: glDrawArrays: GL error 0x505

at androidx.camera.core.processing.OpenGlRenderer.checkGlErrorOrThrow(OpenGlRenderer.java:653)

at androidx.camera.core.processing.OpenGlRenderer.render(OpenGlRenderer.java:254)

at androidx.camera.core.processing.DefaultSurfaceProcessor.onFrameAvailable(DefaultSurfaceProcessor.java:175)

at android.graphics.SurfaceTexture$1.handleMessage(SurfaceTexture.java:212)

at android.os.Handler.dispatchMessage(Handler.java:117)

at android.os.Looper.loopOnce(Looper.java:205)

at android.os.Looper.loop(Looper.java:293)

at android.os.HandlerThread.run(HandlerThread.java:67)

[Xi Zhang]

Thanks for reporting the issue. Which version of CameraX are you using? Does the error happen on a specific device? 

It's the OpenGL post-processing in preview caused the 0x505 error. Is there a reason that you want to record the preview stream instead of using the VideoCapture UseCase? 

Also it would be great if you could provide a minimal reproducible code sample.

Thanks