List of usage examples for android.hardware.camera2 CameraCharacteristics SENSOR_ORIENTATION
Key SENSOR_ORIENTATION
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Clockwise angle through which the output image needs to be rotated to be upright on the device screen in its native orientation.
Also defines the direction of rolling shutter readout, which is from top to bottom in the sensor's coordinate system.
Units: Degrees of clockwise rotation; always a multiple of 90
Range of valid values:
0, 90, 180, 270
This key is available on all devices.
From source file:com.caseystalnaker.android.popinvideodemo.fragments.Camera2VideoFragment.java
/** * Tries to open a {@link CameraDevice}. The result is listened by `mStateCallback`. *///from w ww . jav a 2 s . c o m private void openCamera(final int width, final int height) { if (!hasPermissionsGranted(Utils.VIDEO_PERMISSIONS)) { requestVideoPermissions(); return; } final Activity activity = getActivity(); if (null == activity || activity.isFinishing()) { return; } CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { Log.d(LOGTAG, "tryAcquire"); if (!mCameraOpenCloseLock.tryAcquire(4000, TimeUnit.MILLISECONDS)) { throw new RuntimeException("Time out waiting to lock camera opening."); } //play it safe here and use the default camera. No guarantee there is a selfy cam. String cameraId = manager.getCameraIdList()[Utils.CAMERA_ID]; // Choose the sizes for camera preview and video recording final CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); final StreamConfigurationMap map = characteristics .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); mVideoSize = chooseVideoSize(map.getOutputSizes(MediaRecorder.class)); mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), width, height, mVideoSize); final int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } configureTransform(width, height); mMediaRecorder = new MediaRecorder(); manager.openCamera(cameraId, mStateCallback, null); } catch (SecurityException e) { Toast.makeText(activity, "Cannot access the camera.", Toast.LENGTH_SHORT).show(); } catch (CameraAccessException e) { Toast.makeText(activity, "Cannot access the camera.", Toast.LENGTH_SHORT).show(); //activity.finish(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance(getString(R.string.camera_error)).show(getChildFragmentManager(), LOGTAG); } catch (InterruptedException e) { throw new RuntimeException("Interrupted while trying to lock camera opening."); } }
From source file:org.odk.collect.android.fragments.Camera2VideoFragment.java
/** * Tries to open a {@link CameraDevice}. The result is listened by `stateCallback`. *///w ww. j a v a2 s .co m @SuppressWarnings("MissingPermission") private void openCamera(int width, int height) { if (!hasPermissionsGranted(VIDEO_PERMISSIONS)) { requestVideoPermissions(); return; } final Activity activity = getActivity(); if (null == activity || activity.isFinishing()) { return; } CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { Timber.d("tryAcquire"); if (!cameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) { throw new RuntimeException("Time out waiting to lock camera opening."); } String cameraId = null; for (String id : manager.getCameraIdList()) { CameraCharacteristics characteristics = manager.getCameraCharacteristics(id); Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING); if (facing != null && facing != CameraCharacteristics.LENS_FACING_FRONT) { continue; } // Choose the sizes for camera preview and video recording StreamConfigurationMap map = characteristics .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); sensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); if (map == null) { continue; } videoSize = chooseVideoSize(map.getOutputSizes(MediaRecorder.class)); previewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), width, height, videoSize); cameraId = id; break; } configureTransform(width, height); mediaRecorder = new MediaRecorder(); manager.openCamera(cameraId, stateCallback, null); } catch (CameraAccessException e) { ToastUtils.showShortToast("Cannot access the camera."); activity.finish(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance(getString(R.string.camera_error)).show(getChildFragmentManager(), FRAGMENT_DIALOG); } catch (InterruptedException e) { throw new RuntimeException("Interrupted while trying to lock camera opening."); } }
From source file:com.pvjunkies.fieldcam.CameraFragment.java
/** * Tries to open a {@link CameraDevice}. The result is listened by `mStateCallback`. *//*from w ww .j a v a2s.c om*/ @SuppressWarnings("MissingPermission") private void openCamera(int width, int height) { if (!hasPermissionsGranted(VIDEO_PERMISSIONS)) { requestVideoPermissions(); return; } final Activity activity = getActivity(); if (null == activity || activity.isFinishing()) { return; } CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { Log.d(TAG, "tryAcquire"); if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) { throw new RuntimeException("Time out waiting to lock camera opening."); } String cameraId = manager.getCameraIdList()[0]; // Choose the sizes for camera preview and video recording CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); if (map == null) { throw new RuntimeException("Cannot get available preview/video sizes"); } mVideoSize = chooseVideoSize(map.getOutputSizes(MediaRecorder.class)); mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), width, height, mVideoSize); int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } configureTransform(width, height); mMediaRecorder = new MediaRecorder(); manager.openCamera(cameraId, mStateCallback, null); } catch (CameraAccessException e) { Toast.makeText(activity, "Cannot access the camera.", Toast.LENGTH_SHORT).show(); activity.finish(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance(getString(R.string.camera_error)).show(getChildFragmentManager(), FRAGMENT_DIALOG); } catch (InterruptedException e) { throw new RuntimeException("Interrupted while trying to lock camera opening."); } }
From source file:com.android.rahul.myselfieapp.Fragment.CamVideoFragment.java
/** * Tries to open a {@link CameraDevice}. The result is listened by `mStateCallback`. *//* w ww.j a v a 2 s . c o m*/ private void openCamera(int width, int height) { if (!hasPermissionsGranted(VIDEO_PERMISSIONS)) { requestVideoPermissions(); return; } final Activity activity = getActivity(); if (null == activity || activity.isFinishing()) { return; } CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { Log.d(TAG, "tryAcquire"); if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) { throw new RuntimeException("Time out waiting to lock camera opening."); } String cameraId = manager.getCameraIdList()[0]; // Choose the sizes for camera preview and video recording CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); mVideoSize = chooseVideoSize(map.getOutputSizes(MediaRecorder.class)); mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), width, height, mVideoSize); int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } configureTransform(width, height); mMediaRecorder = new MediaRecorder(); manager.openCamera(cameraId, mStateCallback, null); } catch (CameraAccessException e) { Toast.makeText(activity, "Cannot access the camera.", Toast.LENGTH_SHORT).show(); activity.finish(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance(getString(R.string.camera_error)).show(getChildFragmentManager(), FRAGMENT_DIALOG); } catch (InterruptedException e) { throw new RuntimeException("Interrupted while trying to lock camera opening."); } }
From source file:com.mebene.ACHud.Camera2VideoFragment2.java
/** * Tries to open a {@link CameraDevice}. The result is listened by `mStateCallback`. */// www . jav a 2 s .c om @SuppressWarnings("MissingPermission") private void openCamera(int width, int height) { if (!hasPermissionsGranted(VIDEO_PERMISSIONS)) { requestVideoPermissions(); return; } final Activity activity = getActivity(); if (null == activity || activity.isFinishing()) { return; } CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { Log.d(TAG, "tryAcquire"); if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) { throw new RuntimeException("Time out waiting to lock camera opening."); } String cameraId = manager.getCameraIdList()[0]; // Choose the sizes for camera preview and video recording CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); if (map == null) { throw new RuntimeException("Cannot get available preview/video sizes"); } mVideoSize = chooseVideoSize(map.getOutputSizes(MediaRecorder.class)); mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), width, height, mVideoSize); int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } configureTransform(width, height); mMediaRecorder = new MediaRecorder(); manager.openCamera(cameraId, mStateCallback, null); } catch (CameraAccessException e) { Toast.makeText(activity, "Cannot access the camera.", Toast.LENGTH_SHORT).show(); activity.finish(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance("getString(R.string.camera_error)").show(getChildFragmentManager(), FRAGMENT_DIALOG); } catch (InterruptedException e) { throw new RuntimeException("Interrupted while trying to lock camera opening."); } }
From source file:pt.iscte.row_timer.android.activities.Camera2VideoFragment.java
/** * Tries to open a {@link CameraDevice}. The result is listened by `mStateCallback`. *//*w w w . j ava2 s . c o m*/ private void openCamera(int width, int height) { if (!hasPermissionsGranted(VIDEO_PERMISSIONS)) { requestVideoPermissions(); return; } final Activity activity = getActivity(); if (null == activity || activity.isFinishing()) { return; } CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { Log.d(TAG, "tryAcquire"); if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) { throw new RuntimeException("Time out waiting to lock camera opening."); } String cameraId = manager.getCameraIdList()[0]; // Choose the sizes for camera preview and video recording CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); mVideoSize = chooseVideoSize(map.getOutputSizes(MediaRecorder.class)); mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), width, height, mVideoSize); int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } configureTransform(width, height); mMediaRecorder = new MediaRecorder(); if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) { // TODO: Consider calling // ActivityCompat#requestPermissions // here to request the missing permissions, and then overriding // public void onRequestPermissionsResult(int requestCode, String[] permissions, // int[] grantResults) // to handle the case where the user grants the permission. See the documentation // for ActivityCompat#requestPermissions for more details. return; } manager.openCamera(cameraId, mStateCallback, null); } catch (CameraAccessException e) { Toast.makeText(activity, "Cannot access the camera.", Toast.LENGTH_SHORT).show(); activity.finish(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance(getString(R.string.camera_error)).show(getChildFragmentManager(), FRAGMENT_DIALOG); } catch (InterruptedException e) { throw new RuntimeException("Interrupted while trying to lock camera opening."); } }
From source file:com.microblink.barcode.customcamera.camera2.Camera2Fragment.java
/** * Sets up member variables related to camera. * * @param width The width of available size for camera preview * @param height The height of available size for camera preview */// www. jav a 2 s.c o m private void setUpCameraOutputs(int width, int height) { Activity activity = getActivity(); CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { for (String cameraId : manager.getCameraIdList()) { CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); // We don't use a front facing camera in this sample. Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING); if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) { continue; } StreamConfigurationMap map = characteristics .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); if (map == null) { continue; } // For still image captures, we use the largest available size. Size largest = Collections.max(Arrays.asList(map.getOutputSizes(ImageFormat.YUV_420_888)), new CompareSizesByArea()); // Find out if we need to swap dimension to get the preview size relative to sensor // coordinate. int displayRotation = activity.getWindowManager().getDefaultDisplay().getRotation(); int sensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); boolean swappedDimensions = false; switch (displayRotation) { case Surface.ROTATION_0: case Surface.ROTATION_180: if (sensorOrientation == 90 || sensorOrientation == 270) { swappedDimensions = true; } break; case Surface.ROTATION_90: case Surface.ROTATION_270: if (sensorOrientation == 0 || sensorOrientation == 180) { swappedDimensions = true; } break; default: Log.e(TAG, "Display rotation is invalid: " + displayRotation); } Point displaySize = new Point(); activity.getWindowManager().getDefaultDisplay().getSize(displaySize); int maxPreviewWidth = displaySize.x; int maxPreviewHeight = displaySize.y; if (swappedDimensions) { maxPreviewWidth = displaySize.y; maxPreviewHeight = displaySize.x; } if (maxPreviewWidth > MAX_PREVIEW_WIDTH) { maxPreviewWidth = MAX_PREVIEW_WIDTH; } if (maxPreviewHeight > MAX_PREVIEW_HEIGHT) { maxPreviewHeight = MAX_PREVIEW_HEIGHT; } // Danger, W.R.! Attempting to use too large a preview size could exceed the camera // bus' bandwidth limitation, resulting in gorgeous previews but the storage of // garbage capture data. mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), maxPreviewWidth, maxPreviewHeight, largest); Log.i(TAG, "Preview size is " + mPreviewSize.toString()); mImageReader = ImageReader.newInstance(mPreviewSize.getWidth(), mPreviewSize.getHeight(), ImageFormat.YUV_420_888, /*maxImages*/1); mImageReader.setOnImageAvailableListener(mOnImageAvailableListener, mBackgroundHandler); // We fit the aspect ratio of TextureView to the size of preview we picked. int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } mCameraId = cameraId; return; } } catch (CameraAccessException e) { e.printStackTrace(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance("Camera error").show(getChildFragmentManager(), FRAGMENT_DIALOG); } }
From source file:com.vest.album.fragment.CameraVideoFragment.java
/** * Tries to open a {@link CameraDevice}. The result is listened by `mStateCallback`. *///from w ww.ja v a 2s. c o m private void openCamera(int width, int height) { if (!hasPermissionsGranted(VIDEO_PERMISSIONS)) { requestVideoPermissions(); return; } final Activity activity = getActivity(); if (null == activity || activity.isFinishing()) { return; } CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { Log.d(TAG, "tryAcquire"); if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) { throw new RuntimeException("Time out waiting to lock camera opening."); } String cameraId = manager.getCameraIdList()[0]; // Choose the sizes for camera preview and video recording CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); mVideoSize = chooseVideoSize(map.getOutputSizes(MediaRecorder.class)); mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), width, height, mVideoSize); int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } configureTransform(width, height); mMediaRecorder = new MediaRecorder(); manager.openCamera(cameraId, mStateCallback, null); } catch (CameraAccessException e) { callback.onVideoError("!"); activity.finish(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance(getString(R.string.camera_error)).show(getChildFragmentManager(), FRAGMENT_DIALOG); } catch (InterruptedException e) { throw new RuntimeException("Interrupted while trying to lock camera opening."); } catch (SecurityException e) { } }
From source file:com.example.android.learnmore.Camera2BasicFragment.java
private void setUpCameraOutputs(int width, int height) { Activity activity = getActivity();/*w ww . j a va2 s. c o m*/ CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { for (String cameraId : manager.getCameraIdList()) { CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); // We don't use a front facing camera in this sample. Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING); if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) { continue; } StreamConfigurationMap map = characteristics .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); if (map == null) { continue; } // For still image captures, we use the largest available size. Size largest = Collections.max(Arrays.asList(map.getOutputSizes(ImageFormat.JPEG)), new CompareSizesByArea()); mImageReader = ImageReader.newInstance(largest.getWidth(), largest.getHeight(), ImageFormat.JPEG, /*maxImages*/2); mImageReader.setOnImageAvailableListener(mOnImageAvailableListener, mBackgroundHandler); // Find out if we need to swap dimension to get the preview size relative to sensor // coordinate. int displayRotation = activity.getWindowManager().getDefaultDisplay().getRotation(); //noinspection ConstantConditions mSensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); boolean swappedDimensions = false; switch (displayRotation) { case Surface.ROTATION_0: case Surface.ROTATION_180: if (mSensorOrientation == 90 || mSensorOrientation == 270) { swappedDimensions = true; } break; case Surface.ROTATION_90: case Surface.ROTATION_270: if (mSensorOrientation == 0 || mSensorOrientation == 180) { swappedDimensions = true; } break; default: Log.e(TAG, "Display rotation is invalid: " + displayRotation); } Point displaySize = new Point(); activity.getWindowManager().getDefaultDisplay().getSize(displaySize); int rotatedPreviewWidth = width; int rotatedPreviewHeight = height; int maxPreviewWidth = displaySize.x; int maxPreviewHeight = displaySize.y; if (swappedDimensions) { rotatedPreviewWidth = height; rotatedPreviewHeight = width; maxPreviewWidth = displaySize.y; maxPreviewHeight = displaySize.x; } if (maxPreviewWidth > MAX_PREVIEW_WIDTH) { maxPreviewWidth = MAX_PREVIEW_WIDTH; } if (maxPreviewHeight > MAX_PREVIEW_HEIGHT) { maxPreviewHeight = MAX_PREVIEW_HEIGHT; } // Danger, W.R.! Attempting to use too large a preview size could exceed the camera // bus' bandwidth limitation, resulting in gorgeous previews but the storage of // garbage capture data. mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), rotatedPreviewWidth, rotatedPreviewHeight, maxPreviewWidth, maxPreviewHeight, largest); // We fit the aspect ratio of TextureView to the size of preview we picked. int orientation = getResources().getConfiguration().orientation; if (orientation == Configuration.ORIENTATION_LANDSCAPE) { mTextureView.setAspectRatio(mPreviewSize.getWidth(), mPreviewSize.getHeight()); } else { mTextureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); } // // Check if the flash is supported. // Boolean available = characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE); // mFlashSupported = available == null ? false : available; mCameraId = cameraId; return; } } catch (CameraAccessException e) { e.printStackTrace(); } catch (NullPointerException e) { ErrorDialog.newInstance(getString(R.string.camera_error)).show(getChildFragmentManager(), FRAGMENT_DIALOG); } }
From source file:com.rockacode.ocr.ui.camera.CameraFragment.java
/** * Sets up member variables related to camera. * * @param width The width of available size for camera preview * @param height The height of available size for camera preview *//*from w ww .j av a 2 s . c o m*/ private void setUpCameraOutputs(int width, int height) { Activity activity = getActivity(); CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); try { for (String cameraId : manager.getCameraIdList()) { CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); // We don't use a front facing camera in this sample. Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING); if (facing != null && facing == CameraCharacteristics.LENS_FACING_FRONT) { continue; } StreamConfigurationMap map = characteristics .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); if (map == null) { continue; } // For still image captures, we use the largest available size. Size largest = Collections.max(Arrays.asList(map.getOutputSizes(ImageFormat.JPEG)), new CompareSizesByArea()); mImageReader = ImageReader.newInstance(largest.getWidth(), largest.getHeight(), ImageFormat.JPEG, /*maxImages*/2); mImageReader.setOnImageAvailableListener(mOnImageAvailableListener, mBackgroundHandler); // Find out if we need to swap dimension to get the preview size relative to sensor // coordinate. int displayRotation = activity.getWindowManager().getDefaultDisplay().getRotation(); int sensorOrientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); boolean swappedDimensions = false; switch (displayRotation) { case Surface.ROTATION_0: case Surface.ROTATION_180: if (sensorOrientation == 90 || sensorOrientation == 270) { swappedDimensions = true; } break; case Surface.ROTATION_90: case Surface.ROTATION_270: if (sensorOrientation == 0 || sensorOrientation == 180) { swappedDimensions = true; } break; default: Log.e(TAG, "Display rotation is invalid: " + displayRotation); } Point displaySize = new Point(); activity.getWindowManager().getDefaultDisplay().getSize(displaySize); int rotatedPreviewWidth = width; int rotatedPreviewHeight = height; int maxPreviewWidth = displaySize.x; int maxPreviewHeight = displaySize.y; if (swappedDimensions) { rotatedPreviewWidth = height; rotatedPreviewHeight = width; maxPreviewWidth = displaySize.y; maxPreviewHeight = displaySize.x; } if (maxPreviewWidth > MAX_PREVIEW_WIDTH) { maxPreviewWidth = MAX_PREVIEW_WIDTH; } if (maxPreviewHeight > MAX_PREVIEW_HEIGHT) { maxPreviewHeight = MAX_PREVIEW_HEIGHT; } // Danger, W.R.! Attempting to use too large a preview size could exceed the camera // bus' bandwidth limitation, resulting in gorgeous previews but the storage of // garbage capture data. mPreviewSize = chooseOptimalSize(map.getOutputSizes(SurfaceTexture.class), rotatedPreviewWidth, rotatedPreviewHeight, maxPreviewWidth, maxPreviewHeight, largest); // We fit the aspect ratio of TextureView to the size of preview we picked. int orientation = getResources().getConfiguration().orientation; // if (orientation == Configuration.ORIENTATION_LANDSCAPE) { // mTextureView.setAspectRatio( // mPreviewSize.getWidth(), mPreviewSize.getHeight()); // } else { // mTextureView.setAspectRatio( // mPreviewSize.getHeight(), mPreviewSize.getWidth()); // } // Check if the flash is supported. Boolean available = characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE); mFlashSupported = available == null ? false : available; mCameraId = cameraId; return; } } catch (CameraAccessException e) { e.printStackTrace(); } catch (NullPointerException e) { // Currently an NPE is thrown when the Camera2API is used but not supported on the // device this code runs. ErrorDialog.newInstance(getString(R.string.camera_error)).show(getChildFragmentManager(), FRAGMENT_DIALOG); } }