Java Code Examples for android.hardware.camera2.CameraCharacteristics#LENS_FACING_BACK
The following examples show how to use
android.hardware.camera2.CameraCharacteristics#LENS_FACING_BACK .
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Example 1
| Source File: MainActivity.java From Android-9-Development-Cookbook with MIT License | 7 votes |
|
private String getCameraId() {
try {
String[] ids = mCameraManager.getCameraIdList();
for (String id : ids) {
CameraCharacteristics c = mCameraManager.getCameraCharacteristics(id);
Boolean flashAvailable = c.get(CameraCharacteristics.FLASH_INFO_AVAILABLE);
Integer facingDirection = c.get(CameraCharacteristics.LENS_FACING);
if (flashAvailable != null
&& flashAvailable
&& facingDirection != null
&& facingDirection == CameraCharacteristics.LENS_FACING_BACK) {
return id;
}
}
} catch (CameraAccessException e) {
e.printStackTrace();
}
return null;
}
Example 2
| Source File: MainActivity.java From Android-9-Development-Cookbook with MIT License | 6 votes |
|
private String getCameraId() {
try {
String[] ids = mCameraManager.getCameraIdList();
for (String id : ids) {
CameraCharacteristics c = mCameraManager.getCameraCharacteristics(id);
Boolean flashAvailable = c.get(CameraCharacteristics.FLASH_INFO_AVAILABLE);
Integer facingDirection = c.get(CameraCharacteristics.LENS_FACING);
if (flashAvailable != null
&& flashAvailable
&& facingDirection != null
&& facingDirection == CameraCharacteristics.LENS_FACING_BACK) {
return id;
}
}
} catch (CameraAccessException e) {
e.printStackTrace();
}
return null;
}
Example 3
| Source File: Camera2Recorder.java From DeviceConnect-Android with MIT License | 6 votes |
|
/**
* カメラの位置を判定する.
* @return カメラの位置
*/
private CameraFacing detectFacing() {
try {
int facing = Camera2Helper.getFacing(mCameraManager, mCameraId);
switch (facing) {
case CameraCharacteristics.LENS_FACING_BACK:
return CameraFacing.BACK;
case CameraCharacteristics.LENS_FACING_FRONT:
return CameraFacing.FRONT;
case CameraCharacteristics.LENS_FACING_EXTERNAL:
return CameraFacing.EXTERNAL;
default:
return CameraFacing.UNKNOWN;
}
} catch (CameraAccessException e) {
return CameraFacing.UNKNOWN;
}
}
Example 4
| Source File: TorchService.java From GravityBox with Apache License 2.0 | 6 votes |
|
private String getCameraId() {
if (mCameraId == null) {
try {
String[] ids = mCameraManager.getCameraIdList();
for (String id : ids) {
CameraCharacteristics c = mCameraManager.getCameraCharacteristics(id);
Boolean flashAvailable = c.get(CameraCharacteristics.FLASH_INFO_AVAILABLE);
Integer lensFacing = c.get(CameraCharacteristics.LENS_FACING);
if (flashAvailable != null && flashAvailable && lensFacing != null &&
lensFacing == CameraCharacteristics.LENS_FACING_BACK) {
mCameraId = id;
}
}
if (DEBUG) Log.d(TAG, "getCameraId: " + mCameraId);
} catch (Exception e) {
e.printStackTrace();
mTorchStatus = TORCH_STATUS_ERROR;
broadcastStatus();
stopSelf();
}
}
return mCameraId;
}
Example 5
| Source File: FlashHandler.java From habpanelviewer with GNU General Public License v3.0 | 6 votes |
|
public FlashHandler(CameraManager cameraManager) {
mCameraManager = cameraManager;
try {
for (String camId : mCameraManager.getCameraIdList()) {
CameraCharacteristics characteristics = mCameraManager.getCameraCharacteristics(camId);
Boolean hasFlash = characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE);
Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (facing != null && facing == CameraCharacteristics.LENS_FACING_BACK
&& Boolean.TRUE.equals(hasFlash)) {
torchId = camId;
break;
}
}
if (torchId != null) {
controller = new FlashControlThread();
controller.start();
}
} catch (CameraAccessException e) {
Log.d(TAG, "Could not create flash controller");
}
}
Example 6
| Source File: CameraInfo.java From MobileInfo with Apache License 2.0 | 5 votes |
|
private static String getFacing(Integer facing) {
if (facing == null) {
return UNKNOWN;
}
switch (facing) {
case CameraCharacteristics.LENS_FACING_FRONT:
return "FRONT";
case CameraCharacteristics.LENS_FACING_BACK:
return "BACK";
case CameraCharacteristics.LENS_FACING_EXTERNAL:
return "EXTERNAL";
default:
return UNKNOWN + "-" + facing;
}
}
Example 7
| Source File: Camera2WrapperManager.java From DeviceConnect-Android with MIT License | 5 votes |
|
/**
* サポートしているカメラのタイプ一覧を取得します.
*
* @param context コンテキスト
* @return カメラのタイプ一覧
*/
public static List<Integer> supportCameraIds(Context context) {
CameraManager manager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
if (manager == null) {
throw new UnsupportedOperationException("Not supported a Camera.");
}
List<Integer> list = new ArrayList<>();
try {
for (String cameraId : manager.getCameraIdList()) {
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (facing != null) {
switch (facing) {
case CameraCharacteristics.LENS_FACING_BACK:
list.add(CameraCharacteristics.LENS_FACING_BACK);
break;
case CameraCharacteristics.LENS_FACING_FRONT:
list.add(CameraCharacteristics.LENS_FACING_FRONT);
break;
default:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
list.add(CameraCharacteristics.LENS_FACING_EXTERNAL);
}
break;
}
}
}
} catch (CameraAccessException e) {
// ignore.
}
return list;
}
Example 8
| Source File: Camera2Helper.java From CameraCompat with MIT License | 5 votes |
|
private void initCameraIds() throws CameraAccessException {
for (String cameraId : mCameraManager.getCameraIdList()) {
CameraCharacteristics characteristics =
mCameraManager.getCameraCharacteristics(cameraId);
Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (facing != null) {
if (facing == CameraCharacteristics.LENS_FACING_FRONT) {
mFrontCameraId = cameraId;
} else if (facing == CameraCharacteristics.LENS_FACING_BACK) {
mBackCameraId = cameraId;
}
}
}
}
Example 9
| Source File: BaseCameraActivity.java From fritz-examples with MIT License | 5 votes |
|
protected void toggleCameraFacingDirection() {
final OverlayView overlay = findViewById(R.id.debug_overlay);
if (overlay != null) {
overlay.setVisibility(View.INVISIBLE);
}
if (cameraFacingDirection == CameraCharacteristics.LENS_FACING_FRONT) {
cameraFacingDirection = CameraCharacteristics.LENS_FACING_BACK;
} else {
cameraFacingDirection = CameraCharacteristics.LENS_FACING_FRONT;
}
cameraId = chooseCamera();
fragment.switchCamera(cameraId);
}
Example 10
| Source File: AndroidSensorsDriver.java From sensorhub with Mozilla Public License 2.0 | 5 votes |
|
@SuppressWarnings("deprecation")
protected void createCameraOutputs(Context androidContext) throws SensorException
{
if (android.os.Build.VERSION.SDK_INT > android.os.Build.VERSION_CODES.LOLLIPOP+2)
{
CameraManager cameraManager = (CameraManager)androidContext.getSystemService(Context.CAMERA_SERVICE);
try
{
String[] camIds = cameraManager.getCameraIdList();
for (String cameraId: camIds)
{
log.debug("Detected camera " + cameraId);
int camDir = cameraManager.getCameraCharacteristics(cameraId).get(CameraCharacteristics.LENS_FACING);
if ( (camDir == CameraCharacteristics.LENS_FACING_BACK && config.activateBackCamera) ||
(camDir == CameraCharacteristics.LENS_FACING_FRONT && config.activateFrontCamera))
{
useCamera2(new AndroidCamera2Output(this, cameraManager, cameraId, config.camPreviewSurfaceHolder), cameraId);
}
}
}
catch (CameraAccessException e)
{
throw new SensorException("Error while accessing cameras", e);
}
}
else
{
for (int cameraId = 0; cameraId < android.hardware.Camera.getNumberOfCameras(); cameraId++)
{
android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
android.hardware.Camera.getCameraInfo(cameraId, info);
if ( (info.facing == android.hardware.Camera.CameraInfo.CAMERA_FACING_BACK && config.activateBackCamera) ||
(info.facing == android.hardware.Camera.CameraInfo.CAMERA_FACING_FRONT && config.activateFrontCamera))
{
useCamera(new AndroidCameraOutput(this, cameraId, config.camPreviewSurfaceHolder), cameraId);
}
}
}
}
Example 11
| Source File: AndroidCamera2AgentImpl.java From Camera2 with Apache License 2.0 | 5 votes |
|
public AndroidCamera2DeviceInfo(CameraManager cameraManager,
String[] cameraIds, int numberOfCameras) {
mCameraManager = cameraManager;
mCameraIds = cameraIds;
mNumberOfCameras = numberOfCameras;
int firstBackId = NO_DEVICE;
int firstFrontId = NO_DEVICE;
for (int id = 0; id < cameraIds.length; ++id) {
try {
int lensDirection = cameraManager.getCameraCharacteristics(cameraIds[id])
.get(CameraCharacteristics.LENS_FACING);
if (firstBackId == NO_DEVICE &&
lensDirection == CameraCharacteristics.LENS_FACING_BACK) {
firstBackId = id;
}
if (firstFrontId == NO_DEVICE &&
lensDirection == CameraCharacteristics.LENS_FACING_FRONT) {
firstFrontId = id;
}
} catch (CameraAccessException ex) {
Log.w(TAG, "Couldn't get characteristics of camera '" + id + "'", ex);
}
}
mFirstBackCameraId = firstBackId;
mFirstFrontCameraId = firstFrontId;
}
Example 12
| Source File: MainActivity.java From AndroidPlayground with MIT License | 5 votes |
|
private void initCameraIds() throws CameraAccessException {
for (String cameraId : mCameraManager.getCameraIdList()) {
CameraCharacteristics characteristics =
mCameraManager.getCameraCharacteristics(cameraId);
Integer facing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (facing != null) {
if (facing == CameraCharacteristics.LENS_FACING_BACK) {
mBackCameraId = cameraId;
}
}
}
}
Example 13
| Source File: CameraPluginActivity.java From unity-android-native-camera with MIT License | 5 votes |
|
private String getCamera(CameraManager manager) {
try {
for (String cameraId : manager.getCameraIdList()) {
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
int cameraOrientation = characteristics.get(CameraCharacteristics.LENS_FACING);
if (cameraOrientation == CameraCharacteristics.LENS_FACING_BACK) {
return cameraId;
}
}
} catch (CameraAccessException e) {
e.printStackTrace();
}
return null;
}
Example 14
| Source File: OBCameraManager.java From GLEXP-Team-onebillion with Apache License 2.0 | 4 votes |
|
private int getCameraCharacteristic(int cameraLoc)
{
return cameraLoc == CAMERA_BACK ? CameraCharacteristics.LENS_FACING_BACK : CameraCharacteristics.LENS_FACING_FRONT;
}
Example 15
| Source File: CameraCharacteristicsMinApiLevel21.java From fdroidclient with GNU General Public License v3.0 | 4 votes |
|
private boolean isLensFacingBack(final String cameraId) throws FDroidDeviceException {
final Integer lensFacing = getCameraCharacteristics(cameraId).get(CameraCharacteristics.LENS_FACING);
return lensFacing != null && lensFacing == CameraCharacteristics.LENS_FACING_BACK;
}
Example 16
| Source File: Camera2.java From SimpleVideoEditor with Apache License 2.0 | 4 votes |
|
void initCameraDevices() {
try {
String[] ids = mCameraManager.getCameraIdList();
if (ids.length == 0) {
// 这表示这台机器上没有任何摄像头设备
mConfig.setCameraSupported(false);
mCallback.onError(ICameraCallback.ERROR_CODE_NO_CAMERA_DEVICES);
return;
}
for (String id : ids) {
CameraCharacteristics characteristics = mCameraManager.getCameraCharacteristics(id);
Integer internal = characteristics.get(CameraCharacteristics.LENS_FACING);
if (internal == null) {
mCallback.onError(ICameraCallback.ERROR_CODE_UNKNOWN);
continue;
}
// 目前仅支持前置和后置摄像头，其他外接摄像头暂不支持
if (internal == CameraCharacteristics.LENS_FACING_FRONT) {
mDeviceInfo.addInfo(new Camera2DeviceInfo.Device(id, Constants.CAMERA_FACING_FRONT));
} else if (internal == CameraCharacteristics.LENS_FACING_BACK) {
mDeviceInfo.addInfo(new Camera2DeviceInfo.Device(id, Constants.CAMERA_FACING_BACK));
// 目前仅考虑后置摄像头上的闪光灯
if (characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE)) {
// 在闪光灯可用的情况下，默认关闭闪光灯
mConfig.setCurrentFlashlightState(Constants.FLASH_LIGHT_OFF);
}
}
}
// 优先使用后置摄像头
if (mDeviceInfo.getDeviceByFacing(Constants.CAMERA_FACING_BACK) != null) {
mConfig.setCurrentFacing(Constants.CAMERA_FACING_BACK);
} else if (mDeviceInfo.getDeviceByFacing(Constants.CAMERA_FACING_FRONT) != null) {
mConfig.setCurrentFacing(Constants.CAMERA_FACING_FRONT);
}
mConfig.setCurrentCameraId(mDeviceInfo.getDeviceByFacing(mConfig.getCurrentFacing()).getCameraId());
} catch (CameraAccessException e) {
//e.printStackTrace();
// 获取摄像头设备列表失败，一般都是没有权限
mCallback.onError(ICameraCallback.ERROR_CODE_NO_PERMISSION);
}
}
Example 17
| Source File: Camera2Utils.java From libcommon with Apache License 2.0 | 4 votes |
|
/**
* 指定した条件に合うカメラを探す
* @param manager
* @param preferedFace カメラの方向、対応するカメラがなければ異なるfaceのカメラが選択される
* @return
* @throws CameraAccessException
*/
public static CameraConst.CameraInfo findCamera(
@NonNull final CameraManager manager,
@CameraConst.FaceType final int preferedFace)
throws CameraAccessException {
if (DEBUG) Log.v(TAG, "findCamera:preferedFace=" + preferedFace);
CameraConst.CameraInfo info = null;
int targetFace;
final String[] cameraIds = manager.getCameraIdList();
if ((cameraIds != null) && (cameraIds.length > 0)) {
final int face = (preferedFace == FACING_BACK
? CameraCharacteristics.LENS_FACING_BACK
: CameraCharacteristics.LENS_FACING_FRONT);
boolean triedAllCameras = false;
targetFace = face;
String cameraId = null;
int orientation = 0;
cameraLoop:
for (; !triedAllCameras ;) {
for (final String id: cameraIds) {
final CameraCharacteristics characteristics = manager.getCameraCharacteristics(id);
if (characteristics.get(CameraCharacteristics.LENS_FACING) == targetFace) {
final StreamConfigurationMap map = characteristics.get(
CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
cameraId = id;
orientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
break cameraLoop;
}
}
if ((cameraId == null) && (targetFace == face)) {
targetFace = (face == CameraCharacteristics.LENS_FACING_BACK
? CameraCharacteristics.LENS_FACING_FRONT
: CameraCharacteristics.LENS_FACING_BACK);
} else {
triedAllCameras = true;
}
}
if (!TextUtils.isEmpty(cameraId)) {
info = new CameraConst.CameraInfo(cameraId, face, orientation,
CameraConst.DEFAULT_WIDTH, CameraConst.DEFAULT_HEIGHT);
}
}
return info;
}
Example 18
| Source File: Camera2Utils.java From libcommon with Apache License 2.0 | 4 votes |
|
/**
* 指定した条件に合うカメラを探す
* @param manager
* @param width
* @param height
* @param preferedFace
* @param degrees
* @return
* @throws CameraAccessException
*/
@Nullable
public static CameraConst.CameraInfo findCamera(
@NonNull final CameraManager manager,
final int width, final int height,
final int preferedFace, final int degrees)
throws CameraAccessException {
if (DEBUG) Log.v(TAG, String.format("findCamera:Size(%dx%d),preferedFace=%d,degrees=%d",
width, height, preferedFace, degrees));
String cameraId = null;
Size previewSize = null;
int targetFace = -1;
int orientation = 0;
final String[] cameraIds = manager.getCameraIdList();
if ((cameraIds != null) && (cameraIds.length > 0)) {
final int face = (preferedFace == FACING_BACK
? CameraCharacteristics.LENS_FACING_BACK
: CameraCharacteristics.LENS_FACING_FRONT);
boolean triedAllCameras = false;
targetFace = face;
cameraLoop:
for (; !triedAllCameras ;) {
for (final String id: cameraIds) {
final CameraCharacteristics characteristics
= manager.getCameraCharacteristics(id);
if (characteristics.get(CameraCharacteristics.LENS_FACING) == targetFace) {
final StreamConfigurationMap map = characteristics.get(
CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
previewSize = chooseOptimalSize(characteristics, map, width, height, degrees);
orientation = characteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
cameraId = id;
break cameraLoop;
}
}
if ((cameraId == null) && (targetFace == face)) {
targetFace = (face == CameraCharacteristics.LENS_FACING_BACK
? CameraCharacteristics.LENS_FACING_FRONT
: CameraCharacteristics.LENS_FACING_BACK);
} else {
triedAllCameras = true;
}
}
}
if (!TextUtils.isEmpty(cameraId) && (previewSize != null)) {
return new CameraConst.CameraInfo(cameraId, targetFace, orientation,
previewSize.getWidth(), previewSize.getHeight());
}
if (DEBUG) Log.w(TAG, "findCamera: not found");
return null;
}
Example 19
| Source File: CameraUtils.java From SimpleSmsRemote with MIT License | 4 votes |
|
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
public static MyCameraInfo CreateFromCameraCharacteristics(String cameraId,
CameraCharacteristics characteristics) {
StreamConfigurationMap configMap =
characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
Size[] outputSizes = configMap.getOutputSizes(ImageFormat.JPEG);
List<int[]> outputResolutions = new ArrayList<>();
for (Size outputSize : outputSizes) {
outputResolutions.add(new int[]{outputSize.getWidth(), outputSize.getHeight()});
}
MyCameraInfo cameraInfo = new MyCameraInfo(cameraId, outputResolutions);
// supported functionality depends on the supported hardware level
switch (characteristics.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL)) {
case CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_3:
case CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_FULL:
case CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED:
cameraInfo.setAutofocusSupport(true);
case CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY:
// only supports camera 1 api features
break;
}
int[] ints = characteristics.get(CameraCharacteristics.CONTROL_AE_AVAILABLE_MODES);
if (characteristics.get(CameraCharacteristics.FLASH_INFO_AVAILABLE))
cameraInfo.setFlashlightSupport(true);
Integer lensFacing = characteristics.get(CameraCharacteristics.LENS_FACING);
if (lensFacing != null) {
if (lensFacing == CameraCharacteristics.LENS_FACING_BACK)
cameraInfo.setLensFacing(LensFacing.BACK);
else if (lensFacing == CameraCharacteristics.LENS_FACING_FRONT)
cameraInfo.setLensFacing(LensFacing.FRONT);
else if (lensFacing == CameraCharacteristics.LENS_FACING_EXTERNAL)
cameraInfo.setLensFacing(LensFacing.EXTERNAL);
}
/*
jpeg is always supported
boolean isSupported = configMap.isOutputSupportedFor(0x100);
*/
//TODO add more info
return cameraInfo;
}
Example 20
| Source File: VideoCaptureCamera2.java From 365browser with Apache License 2.0 | 4 votes |
|
@Override
public boolean allocate(int width, int height, int frameRate) {
Log.d(TAG, "allocate: requested (%d x %d) @%dfps", width, height, frameRate);
ThreadUtils.assertOnUiThread();
synchronized (mCameraStateLock) {
if (mCameraState == CameraState.OPENING || mCameraState == CameraState.CONFIGURING) {
Log.e(TAG, "allocate() invoked while Camera is busy opening/configuring.");
return false;
}
}
final CameraCharacteristics cameraCharacteristics = getCameraCharacteristics(mId);
final StreamConfigurationMap streamMap =
cameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
// Find closest supported size.
final Size[] supportedSizes = streamMap.getOutputSizes(ImageFormat.YUV_420_888);
final Size closestSupportedSize = findClosestSizeInArray(supportedSizes, width, height);
if (closestSupportedSize == null) {
Log.e(TAG, "No supported resolutions.");
return false;
}
final List<Range<Integer>> fpsRanges = Arrays.asList(cameraCharacteristics.get(
CameraCharacteristics.CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES));
if (fpsRanges.isEmpty()) {
Log.e(TAG, "No supported framerate ranges.");
return false;
}
final List<FramerateRange> framerateRanges =
new ArrayList<FramerateRange>(fpsRanges.size());
// On some legacy implementations FPS values are multiplied by 1000. Multiply by 1000
// everywhere for consistency. Set fpsUnitFactor to 1 if fps ranges are already multiplied
// by 1000.
final int fpsUnitFactor = fpsRanges.get(0).getUpper() > 1000 ? 1 : 1000;
for (Range<Integer> range : fpsRanges) {
framerateRanges.add(new FramerateRange(
range.getLower() * fpsUnitFactor, range.getUpper() * fpsUnitFactor));
}
final FramerateRange aeFramerateRange =
getClosestFramerateRange(framerateRanges, frameRate * 1000);
mAeFpsRange = new Range<Integer>(
aeFramerateRange.min / fpsUnitFactor, aeFramerateRange.max / fpsUnitFactor);
Log.d(TAG, "allocate: matched (%d x %d) @[%d - %d]", closestSupportedSize.getWidth(),
closestSupportedSize.getHeight(), mAeFpsRange.getLower(), mAeFpsRange.getUpper());
// |mCaptureFormat| is also used to configure the ImageReader.
mCaptureFormat = new VideoCaptureFormat(closestSupportedSize.getWidth(),
closestSupportedSize.getHeight(), frameRate, ImageFormat.YUV_420_888);
mCameraNativeOrientation =
cameraCharacteristics.get(CameraCharacteristics.SENSOR_ORIENTATION);
// TODO(mcasas): The following line is correct for N5 with prerelease Build,
// but NOT for N7 with a dev Build. Figure out which one to support.
mInvertDeviceOrientationReadings =
cameraCharacteristics.get(CameraCharacteristics.LENS_FACING)
== CameraCharacteristics.LENS_FACING_BACK;
return true;
}
