eglSwapBuffers failed

[meteuz]

Hi, I'm developing a streaming app using the GenericCamera2 class. However, the preview is frozen with the following error on certain phones. The preview is frozen, but streaming to the server works well. What is the cause? Is there a solution?

ertel.streaming W [SurfaceTexture-1-13786-4] bindTextureImage: clearing GL error: 0x506
libEGL E eglSwapBuffersWithDamageKHRImpl:1361 error 300d (EGL_BAD_SURFACE)
SurfaceManager E eglSwapBuffers failed
....
ertel.streaming W [SurfaceTexture-1-13786-4] bindTextureImage: clearing GL error: 0x506
libEGL E eglSwapBuffersWithDamageKHRImpl:1361 error 300d (EGL_BAD_SURFACE)
SurfaceManager E eglSwapBuffers failed

[pedroSG94]

Hello,

I will check it.
Do you have a way to reproduce it consistently? can you tell me steps or share a code that produce the error?
Meanwhile, make sure that you start the preview using the lifecycle of the view used as preview. If you are not sure if you are doing it properly you can use:

genericStream.startPreview(preview, autoHandle = true)

[meteuz]

Hello,

Issue reproduction is a common step that starts by pressing the Start Streaming button after entering the camera screen.
It's hard to share all the codes, but I'm using them as below.

xml

<com.pedro.library.view.OpenGlView
	android:layout_width="match_parent"
	android:layout_height="match_parent"
	android:id="@+id/surfaceView" />

Activity
class StreamingActivity : SurfaceHolder.Callback {

override fun onCreate(savedInstanceState: Bundle?) {
	binding = ActivityStreamingBinding.inflate(layoutInflater)
    setContentView(binding.root)
	
	binding.surfaceView.holder.addCallback(this)
	
	genericCamera2 = GenericCamera2(binding.surfaceView, viewModel)
	
	binding.btnStreaming.setOnClickListener {
		when (viewModel.state.value) {
			StreamingState.Streaming -> {
				viewModel.stopStreaming()
			}
			else -> {
				lifecycleScope.launch {
					viewModel.prepareStreaming()
				}
			}
	}

override fun surfaceCreated(p0: SurfaceHolder) {
	startPreview()
}

override fun surfaceDestroyed(p0: SurfaceHolder) {
    Logger.d("surfaceDestroyed")
    if (genericCamera2.isStreaming) {
        genericCamera2.stopStream()
        binding.btnStreaming.setImageResource(R.drawable.stream_icon_xml)
    }
    if (genericCamera2.isOnPreview) genericCamera2.stopPreview()
}

private fun startPreview() {
    Logger.d("startPreview()")
    binding.surfaceView.setAspectRatioMode(AspectRatioMode.Fill)
    viewModel.startPreview()
}

private fun stopStreaming() {
    viewModel.stopStreaming()
}

...

}

viewModel
class StreamingViewModel(..) : ViewModel(), ConnectChecker {

fun startPreview(width: Int, height: Int) {
	viewModelScope.launch(Dispatchers.IO) {
		genericCamera2?.startPreview(CameraHelper.Facing.BACK, width, height)
	}
}


suspend fun prepareStreaming(
	width: Int,
	height: Int,
	fps: Int,
	bitrate: Int,
	rotation: Int
) {
	if (_state.value == StreamingState.Preparing || _state.value == StreamingState.Streaming) {
		return
	}
	val width = getWidthFromResolution()
	val height = getHeightFromResolution()
	viewModelScope.launch {
		_state.value = StreamingState.Preparing
		val success = genericCamera2?.prepareAudio(64 * 1024, 16000, true) == true &&
			genericCamera2?.prepareVideo(width, height, fps, bitrate, rotation) == true
		_state.value = if (success) StreamingState.Ready else StreamingState.Error("Prepare failed")
	}
}

fun startStreaming(url: String) {
	viewModelScope.launch {
		genericCamera2?.startStream(url)
	}
}

override fun onAuthError() {
	Logger.e("onAuthError")
    _state.value = StreamingState.Error("Auth error")
}

override fun onAuthSuccess() {
	Logger.i("onAuthSuccess")
}

override fun onConnectionFailed(reason: String) {
    Logger.e("onConnectionFailed: $reason")
	_state.value = StreamingState.Error("Connection failed: $reason")
    stopStreaming()
}

override fun onConnectionStarted(url: String) {
    Logger.i("onConnectionStarted: $url")
    _state.value = StreamingState.Streaming
}

override fun onConnectionSuccess() {
    Logger.i("onConnectionSuccess")
}

override fun onDisconnect() {
    Logger.i("onDisconnect")
    _state.value = StreamingState.Stopped
}

override fun onNewBitrate(bitrate: Long) {
}

}

[pedroSG94]

Hello,

With your code example I'm not able to create a test activity. So much code is omitted.
I think that the error maybe is a code problem related with the preview lifecycle.

Can you share a project example of github or in zip to reproduce it?

[meteuz]

First of all, I used the service, and I had no problems. It could be a problem with the code I implemented. I appreciate your help.

[pedroSG94]

Hello,

Without more help I can't reproduce it and find a way to figure the error case.
I need a way to reproduce it