Я пытался использовать Camera2 API Android, передняя камера работает нормально, но когда она поставляется с задней камерой, я думаю, что эта ошибка возникает:
LegacyCameraDevice_nativeGetSurfaceId: Could not retrieve native Surface from surface.
это происходит после того, как я нажимаю кнопку, чтобы взятькартина.Обратный вызов захвата успешен, но я не получаю изображение на onImageAvailable.
Я следовал учебному пособию https://inducesmile.com/android/android-camera2-api-example-tutorial/ Я не имею ни малейшего представления о том, как поступить с ошибкой, с которой я сталкиваюсь сейчас.
вот код, используемый при захвате изображения.
private void takePicture() {
if (mCameraDevice == null) {
return;
}
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.LOLLIPOP) {
CameraManager mManager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
try {
CameraCharacteristics mCharacteristics = mManager.getCameraCharacteristics(mCameraDevice.getId());
Size[] jpegSizes = null;
if (mCharacteristics != null) {
jpegSizes = mCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP).getOutputSizes(ImageFormat.JPEG);
}
int width = 640;
int height = 480;
for(int x = 0; x < jpegSizes.length; x++) {
Log.wtf("jpegSizes", String.valueOf(jpegSizes[x]));
}
if (jpegSizes != null && jpegSizes.length > 0) {
width = jpegSizes[4].getWidth();
height = jpegSizes[4].getHeight();
}
final ImageReader mReader = ImageReader.newInstance(width, height, ImageFormat.JPEG, 1);
List<Surface> mOutputSurface = new ArrayList<>(2);
mOutputSurface.add(mReader.getSurface());
mOutputSurface.add(new Surface(mTextureView.getSurfaceTexture()));
final CaptureRequest.Builder mCaptureBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
mCaptureBuilder.addTarget(mReader.getSurface());
mCaptureBuilder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO);
int mRotation = getWindowManager().getDefaultDisplay().getRotation();
int jpegOrientation = (ORIENTATIONS.get(mRotation) + mSensorOrientation + 270) % 360;
if(cameraId.equals("0")) {
mCaptureBuilder.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(mRotation));
} else {
if(extras.getString("orient").equals("landscape")) {
mCaptureBuilder.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(mRotation));
} else {
mCaptureBuilder.set(CaptureRequest.JPEG_ORIENTATION, jpegOrientation);
}
}
final CameraCaptureSession.CaptureCallback captureListener = new CameraCaptureSession.CaptureCallback() {
@Override
public void onCaptureCompleted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
super.onCaptureCompleted(session, request, result);
if(mImage == null) {
Toast.makeText(StartCameraActivity.this, "Capturing Image Failed, Please Try Again", Toast.LENGTH_SHORT).show();
Log.wtf("onCaptureComplete", "Image not Available");
} else {
Log.wtf("onCaptureComplete", "Image Available");
}
//createCameraPreview();
}
@Override
public void onCaptureFailed(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull CaptureFailure failure) {
super.onCaptureFailed(session, request, failure);
Log.wtf("FAILED", failure.toString());
}
};
mCameraDevice.createCaptureSession(mOutputSurface, new CameraCaptureSession.StateCallback() {
@Override
public void onConfigured(@NonNull CameraCaptureSession session) {
Log.wtf("onConfigured", "succes");
try {
session.capture(mCaptureBuilder.build(), captureListener, mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
@Override
public void onConfigureFailed(@NonNull CameraCaptureSession session) {
Log.wtf("onConfigureFailed", "failed");
}
}, mBackgroundHandler);
mReader.setOnImageAvailableListener(new ImageReader.OnImageAvailableListener() {
@Override
public void onImageAvailable(final ImageReader reader) {
mImage = reader.acquireLatestImage();
Log.wtf("imageAvail", "OnImageAvailable");
StartCameraActivity.this.runOnUiThread(new Runnable() {
@Override
public void run() {
if (mImage == null) {
return;
}
final Image.Plane[] planes = mImage.getPlanes();
final ByteBuffer buffer = planes[0].getBuffer();
byte[] bytes = new byte[buffer.capacity()];
buffer.get(bytes);
Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
mTextureView.setVisibility(View.INVISIBLE);
if(cameraId.equals("0")) {
screenshotHolder.setImageBitmap(bitmap);
} else {
screenshotHolder.setImageBitmap(flip(bitmap, mImage.getWidth(), mImage.getHeight()));
}
new RenderPicture(StartCameraActivity.this).execute();
if (mImage != null) {
mImage.close();
}
if(mReader != null) {
mReader.close();
}
}
});
}
}, mBackgroundHandler);
} catch (CameraAccessException e) {
e.printStackTrace();
}
}
}