Incompatibility with Fotoapparat 2.1.2

[victor5171]

Hi!

I'm trying to couple FaceDetector to Fotoapparat but it looks like the newest version of it is incompatible with FaceDetector.

The following code is used to startup the camera and the detector:

val faceDetectorProcessor = FaceDetectorProcessor.with(this).listener { rectanglesView.setRectangles(it) }.build()

fotoApparat = Fotoapparat.with(this) .into(cameraView) .frameProcessor { faceDetectorProcessor.processFrame(it) } .build()

As you can see, the FrameProcessor property is now a lambda, so i've adapted the call.

But i'm receiving the following error (the application is crashing) if i run this code:

E/AndroidRuntime: FATAL EXCEPTION: pool-10-thread-1 Process: br.com.esapiens.ysos, PID: 17567 java.lang.IllegalAccessError: Field 'io.fotoapparat.preview.Frame.image' is inaccessible to class 'io.fotoapparat.facedetector.processor.FaceDetectorProcessor' (declaration of 'io.fotoapparat.facedetector.processor.FaceDetectorProcessor' appears in /data/app/br.com.esapiens.ysos-1/split_lib_dependencies_apk.apk) at io.fotoapparat.facedetector.processor.FaceDetectorProcessor.processFrame(FaceDetectorProcessor.java:37) at br.com.esapiens.ysos.camera.CameraActivity$onCreate$1.invoke(CameraActivity.kt:27) at br.com.esapiens.ysos.camera.CameraActivity$onCreate$1.invoke(CameraActivity.kt:11) at io.fotoapparat.preview.PreviewStream.dispatchFrame(PreviewStream.kt:92) at io.fotoapparat.preview.PreviewStream.access$dispatchFrame(PreviewStream.kt:14) at io.fotoapparat.preview.PreviewStream$dispatchFrameOnBackgroundThread$1.run(PreviewStream.kt:77) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588) at java.lang.Thread.run(Thread.java:818)

[Diolor]

Thanks @victor5171.
Let's think if @dmitry-zaitsev if we want the 2 libraries version independent or coupled.

[ghost]

any solution for this problem?

[Diolor]

Can you please try FA 2.2.0? Curious why image field is not accessible.

[predasorinionut]

Hi!

I'm having the same problem as @victor5171 with FA 2.2.0 and FD 1.0.0.
Any idea about a solution @Diolor ?

[ghost]

This is the exception I get :
FATAL EXCEPTION: pool-4-thread-1
java.lang.AbstractMethodError: abstract method "void io.fotoapparat.preview.FrameProcessor.process(io.fotoapparat.preview.Frame)"
at io.fotoapparat.FotoapparatBuilder$frameProcessor$$inlined$apply$lambda$1.invoke(FotoapparatBuilder.kt:125)
at io.fotoapparat.FotoapparatBuilder$frameProcessor$$inlined$apply$lambda$1.invoke(FotoapparatBuilder.kt:19)
at io.fotoapparat.preview.PreviewStream.dispatchFrame(PreviewStream.kt:107)
at io.fotoapparat.preview.PreviewStream.access$dispatchFrame(PreviewStream.kt:16)
at io.fotoapparat.preview.PreviewStream$dispatchFrameOnBackgroundThread$1.run(PreviewStream.kt:92)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
at java.lang.Thread.run(Thread.java:762)f

[RationalRank]

Hey @Kim24 . I do get the same exception. Any heads up on it?

[joelhaasnoot]

I have a solution in the mean time, write your frame processor like this

frameProcessor = { val faces = faceDetector.detectFaces(it.image, it.size.width, it.size.height, it.rotation)
                                runOnUiThread {
                                    rectangles?.setRectangles(faces)
                                }
                            })

where faceDetector is

val faceDetector = FaceDetector.create(this)

In this way you essentially recreate FaceDetectorProcessor as a lambda function.

[scognito]

Following @joelhaasnoot advice, here it is the Java version:

private class CustomFrameProcessor implements FrameProcessor {
    @Override
    public void process(@NotNull Frame frame) {

        List<Rectangle> faces = faceDetector.detectFaces(frame.getImage(), frame.getSize().width, frame.getSize().height, frame.getRotation());
        runOnUiThread(() -> rectanglesView.setRectangles(faces));
    }
}

FaceDetector faceDetector = FaceDetector.create(this);
CustomFrameProcessor processor = new CustomFrameProcessor();

fotoapparat = Fotoapparat.with(this)
			.frameProcessor(processor)
			...