Examples with CameraAccessException android.hardware.camera2.CameraAccessException used on opensource projects

Example 46 with CameraAccessException

use of android.hardware.camera2.CameraAccessException in project android_frameworks_base by crdroidandroid.

the class CameraManager method getOrCreateDeviceIdListLocked.

/**
     * Return or create the list of currently connected camera devices.
     *
     * <p>In case of errors connecting to the camera service, will return an empty list.</p>
     */
private ArrayList<String> getOrCreateDeviceIdListLocked() throws CameraAccessException {
    if (mDeviceIdList == null) {
        int numCameras = 0;
        ICameraService cameraService = CameraManagerGlobal.get().getCameraService();
        ArrayList<String> deviceIdList = new ArrayList<>();
        // If no camera service, then no devices
        if (cameraService == null) {
            return deviceIdList;
        }
        try {
            numCameras = cameraService.getNumberOfCameras(CAMERA_TYPE_ALL);
            /* Force to exposing only two cameras
                 * if the package name falls in this bucket
                 */
            boolean exposeAuxCamera = true;
            String packageName = ActivityThread.currentOpPackageName();
            String packageList = SystemProperties.get("camera.auxdisable.packagelist");
            if (packageList.length() > 0) {
                TextUtils.StringSplitter splitter = new TextUtils.SimpleStringSplitter(',');
                splitter.setString(packageList);
                for (String str : splitter) {
                    if (packageName.equals(str)) {
                        exposeAuxCamera = false;
                        break;
                    }
                }
            }
            if (exposeAuxCamera == false && (numCameras > 2)) {
                numCameras = 2;
            }
        } catch (ServiceSpecificException e) {
            throwAsPublicException(e);
        } catch (RemoteException e) {
            // camera service just died - if no camera service, then no devices
            return deviceIdList;
        }
        for (int i = 0; i < numCameras; ++i) {
            // Non-removable cameras use integers starting at 0 for their
            // identifiers
            boolean isDeviceSupported = false;
            try {
                CameraMetadataNative info = cameraService.getCameraCharacteristics(i);
                if (!info.isEmpty()) {
                    isDeviceSupported = true;
                } else {
                    throw new AssertionError("Expected to get non-empty characteristics");
                }
            } catch (ServiceSpecificException e) {
                // propagate exception onward
                if (e.errorCode != ICameraService.ERROR_DISCONNECTED || e.errorCode != ICameraService.ERROR_ILLEGAL_ARGUMENT) {
                    throwAsPublicException(e);
                }
            } catch (RemoteException e) {
                // Camera service died - no devices to list
                deviceIdList.clear();
                return deviceIdList;
            }
            if (isDeviceSupported) {
                deviceIdList.add(String.valueOf(i));
            } else {
                Log.w(TAG, "Error querying camera device " + i + " for listing.");
            }
        }
        mDeviceIdList = deviceIdList;
    }
    return mDeviceIdList;
}

Example 47 with CameraAccessException

use of android.hardware.camera2.CameraAccessException in project android_frameworks_base by crdroidandroid.

the class CameraManager method getCameraCharacteristics.

/**
     * <p>Query the capabilities of a camera device. These capabilities are
     * immutable for a given camera.</p>
     *
     * @param cameraId The id of the camera device to query
     * @return The properties of the given camera
     *
     * @throws IllegalArgumentException if the cameraId does not match any
     *         known camera device.
     * @throws CameraAccessException if the camera device has been disconnected.
     *
     * @see #getCameraIdList
     * @see android.app.admin.DevicePolicyManager#setCameraDisabled
     */
@NonNull
public CameraCharacteristics getCameraCharacteristics(@NonNull String cameraId) throws CameraAccessException {
    CameraCharacteristics characteristics = null;
    synchronized (mLock) {
        if (!getOrCreateDeviceIdListLocked().contains(cameraId)) {
            throw new IllegalArgumentException(String.format("Camera id %s does not match any" + " currently connected camera device", cameraId));
        }
        int id = Integer.parseInt(cameraId);
        /*
             * Get the camera characteristics from the camera service directly if it supports it,
             * otherwise get them from the legacy shim instead.
             */
        ICameraService cameraService = CameraManagerGlobal.get().getCameraService();
        if (cameraService == null) {
            throw new CameraAccessException(CameraAccessException.CAMERA_DISCONNECTED, "Camera service is currently unavailable");
        }
        try {
            if (!supportsCamera2ApiLocked(cameraId)) {
                // Legacy backwards compatibility path; build static info from the camera
                // parameters
                String parameters = cameraService.getLegacyParameters(id);
                CameraInfo info = cameraService.getCameraInfo(id);
                characteristics = LegacyMetadataMapper.createCharacteristics(parameters, info);
            } else {
                // Normal path: Get the camera characteristics directly from the camera service
                CameraMetadataNative info = cameraService.getCameraCharacteristics(id);
                characteristics = new CameraCharacteristics(info);
            }
        } catch (ServiceSpecificException e) {
            throwAsPublicException(e);
        } catch (RemoteException e) {
            // Camera service died - act as if the camera was disconnected
            throw new CameraAccessException(CameraAccessException.CAMERA_DISCONNECTED, "Camera service is currently unavailable", e);
        }
    }
    return characteristics;
}

Example 48 with CameraAccessException

use of android.hardware.camera2.CameraAccessException in project android_frameworks_base by crdroidandroid.

the class CameraUtilsUncheckedThrowTest method testUncheckedThrow.

@SmallTest
public void testUncheckedThrow() {
    try {
        UncheckedThrow.throwAnyException(new CameraAccessException(CameraAccessException.CAMERA_DISCONNECTED));
        Assert.fail("unreachable");
        fakeNeverThrowsCameraAccess();
    } catch (CameraAccessException e) {
    }
}

Example 49 with CameraAccessException

use of android.hardware.camera2.CameraAccessException in project android_frameworks_base by crdroidandroid.

the class Camera2Focuser method cancelAutoFocus.

/**
     * Cancel ongoing auto focus, unlock the auto-focus if it was locked, and
     * resume to passive continuous auto focus.
     *
     * @throws CameraAccessException
     */
public synchronized void cancelAutoFocus() throws CameraAccessException {
    mSuccess = false;
    mLocked = false;
    // reset the AF regions:
    setAfRegions(null);
    // Create request builders, the af regions are automatically updated.
    mRepeatingBuilder = createRequestBuilder();
    CaptureRequest.Builder requestBuilder = createRequestBuilder();
    mAutoFocus.setPassiveAutoFocus(/*picture*/
    true, mRepeatingBuilder);
    mAutoFocus.unlockAutoFocus(mRepeatingBuilder, requestBuilder);
    CaptureCallback listener = createCaptureListener();
    mSession.setRepeatingRequest(mRepeatingBuilder.build(), listener, mHandler);
    mSession.capture(requestBuilder.build(), listener, mHandler);
}

Example 50 with CameraAccessException

use of android.hardware.camera2.CameraAccessException in project android_frameworks_base by AOSPA.

the class CameraDeviceImpl method createReprocessableCaptureSession.

@Override
public void createReprocessableCaptureSession(InputConfiguration inputConfig, List<Surface> outputs, CameraCaptureSession.StateCallback callback, Handler handler) throws CameraAccessException {
    if (DEBUG) {
        Log.d(TAG, "createReprocessableCaptureSession");
    }
    if (inputConfig == null) {
        throw new IllegalArgumentException("inputConfig cannot be null when creating a " + "reprocessable capture session");
    }
    List<OutputConfiguration> outConfigurations = new ArrayList<>(outputs.size());
    for (Surface surface : outputs) {
        outConfigurations.add(new OutputConfiguration(surface));
    }
    createCaptureSessionInternal(inputConfig, outConfigurations, callback, handler, /*isConstrainedHighSpeed*/
    false);
}