Examples with Camera android.hardware.Camera used on opensource projects

Example 11 with Camera

use of android.hardware.Camera in project android_frameworks_base by ResurrectionRemix.

the class CameraDeviceUserShim method connectBinderShim.

public static CameraDeviceUserShim connectBinderShim(ICameraDeviceCallbacks callbacks, int cameraId) {
    if (DEBUG) {
        Log.d(TAG, "Opening shim Camera device");
    }
    /*
         * Put the camera open on a separate thread with its own looper; otherwise
         * if the main thread is used then the callbacks might never get delivered
         * (e.g. in CTS which run its own default looper only after tests)
         */
    CameraLooper init = new CameraLooper(cameraId);
    CameraCallbackThread threadCallbacks = new CameraCallbackThread(callbacks);
    // TODO: Make this async instead of blocking
    int initErrors = init.waitForOpen(OPEN_CAMERA_TIMEOUT_MS);
    Camera legacyCamera = init.getCamera();
    // Check errors old HAL initialization
    LegacyExceptionUtils.throwOnServiceError(initErrors);
    // Disable shutter sounds (this will work unconditionally) for api2 clients
    legacyCamera.disableShutterSound();
    CameraInfo info = new CameraInfo();
    Camera.getCameraInfo(cameraId, info);
    Camera.Parameters legacyParameters = null;
    try {
        legacyParameters = legacyCamera.getParameters();
    } catch (RuntimeException e) {
        throw new ServiceSpecificException(ICameraService.ERROR_INVALID_OPERATION, "Unable to get initial parameters: " + e.getMessage());
    }
    CameraCharacteristics characteristics = LegacyMetadataMapper.createCharacteristics(legacyParameters, info);
    LegacyCameraDevice device = new LegacyCameraDevice(cameraId, legacyCamera, characteristics, threadCallbacks);
    return new CameraDeviceUserShim(cameraId, device, characteristics, init, threadCallbacks);
}

Example 12 with Camera

use of android.hardware.Camera in project zxing by zxing.

the class OpenCameraInterface method open.

/**
   * Opens the requested camera with {@link Camera#open(int)}, if one exists.
   *
   * @param cameraId camera ID of the camera to use. A negative value
   *  or {@link #NO_REQUESTED_CAMERA} means "no preference", in which case a rear-facing
   *  camera is returned if possible or else any camera
   * @return handle to {@link OpenCamera} that was opened
   */
public static OpenCamera open(int cameraId) {
    int numCameras = Camera.getNumberOfCameras();
    if (numCameras == 0) {
        Log.w(TAG, "No cameras!");
        return null;
    }
    boolean explicitRequest = cameraId >= 0;
    Camera.CameraInfo selectedCameraInfo = null;
    int index;
    if (explicitRequest) {
        index = cameraId;
        selectedCameraInfo = new Camera.CameraInfo();
        Camera.getCameraInfo(index, selectedCameraInfo);
    } else {
        index = 0;
        while (index < numCameras) {
            Camera.CameraInfo cameraInfo = new Camera.CameraInfo();
            Camera.getCameraInfo(index, cameraInfo);
            CameraFacing reportedFacing = CameraFacing.values()[cameraInfo.facing];
            if (reportedFacing == CameraFacing.BACK) {
                selectedCameraInfo = cameraInfo;
                break;
            }
            index++;
        }
    }
    Camera camera;
    if (index < numCameras) {
        Log.i(TAG, "Opening camera #" + index);
        camera = Camera.open(index);
    } else {
        if (explicitRequest) {
            Log.w(TAG, "Requested camera does not exist: " + cameraId);
            camera = null;
        } else {
            Log.i(TAG, "No camera facing " + CameraFacing.BACK + "; returning camera #0");
            camera = Camera.open(0);
            selectedCameraInfo = new Camera.CameraInfo();
            Camera.getCameraInfo(0, selectedCameraInfo);
        }
    }
    if (camera == null) {
        return null;
    }
    return new OpenCamera(index, camera, CameraFacing.values()[selectedCameraInfo.facing], selectedCameraInfo.orientation);
}

Example 13 with Camera

use of android.hardware.Camera in project zxing by zxing.

the class CameraConfigurationManager method setDesiredCameraParameters.

void setDesiredCameraParameters(OpenCamera camera, boolean safeMode) {
    Camera theCamera = camera.getCamera();
    Camera.Parameters parameters = theCamera.getParameters();
    if (parameters == null) {
        Log.w(TAG, "Device error: no camera parameters are available. Proceeding without configuration.");
        return;
    }
    Log.i(TAG, "Initial camera parameters: " + parameters.flatten());
    if (safeMode) {
        Log.w(TAG, "In camera config safe mode -- most settings will not be honored");
    }
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
    initializeTorch(parameters, prefs, safeMode);
    CameraConfigurationUtils.setFocus(parameters, prefs.getBoolean(PreferencesActivity.KEY_AUTO_FOCUS, true), prefs.getBoolean(PreferencesActivity.KEY_DISABLE_CONTINUOUS_FOCUS, true), safeMode);
    if (!safeMode) {
        if (prefs.getBoolean(PreferencesActivity.KEY_INVERT_SCAN, false)) {
            CameraConfigurationUtils.setInvertColor(parameters);
        }
        if (!prefs.getBoolean(PreferencesActivity.KEY_DISABLE_BARCODE_SCENE_MODE, true)) {
            CameraConfigurationUtils.setBarcodeSceneMode(parameters);
        }
        if (!prefs.getBoolean(PreferencesActivity.KEY_DISABLE_METERING, true)) {
            CameraConfigurationUtils.setVideoStabilization(parameters);
            CameraConfigurationUtils.setFocusArea(parameters);
            CameraConfigurationUtils.setMetering(parameters);
        }
    }
    parameters.setPreviewSize(bestPreviewSize.x, bestPreviewSize.y);
    theCamera.setParameters(parameters);
    theCamera.setDisplayOrientation(cwRotationFromDisplayToCamera);
    Camera.Parameters afterParameters = theCamera.getParameters();
    Camera.Size afterSize = afterParameters.getPreviewSize();
    if (afterSize != null && (bestPreviewSize.x != afterSize.width || bestPreviewSize.y != afterSize.height)) {
        Log.w(TAG, "Camera said it supported preview size " + bestPreviewSize.x + 'x' + bestPreviewSize.y + ", but after setting it, preview size is " + afterSize.width + 'x' + afterSize.height);
        bestPreviewSize.x = afterSize.width;
        bestPreviewSize.y = afterSize.height;
    }
}

Example 14 with Camera

use of android.hardware.Camera in project zxing by zxing.

the class CameraConfigurationManager method initFromCameraParameters.

/**
   * Reads, one time, values from the camera that are needed by the app.
   */
void initFromCameraParameters(OpenCamera camera) {
    Camera.Parameters parameters = camera.getCamera().getParameters();
    WindowManager manager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
    Display display = manager.getDefaultDisplay();
    int displayRotation = display.getRotation();
    int cwRotationFromNaturalToDisplay;
    switch(displayRotation) {
        case Surface.ROTATION_0:
            cwRotationFromNaturalToDisplay = 0;
            break;
        case Surface.ROTATION_90:
            cwRotationFromNaturalToDisplay = 90;
            break;
        case Surface.ROTATION_180:
            cwRotationFromNaturalToDisplay = 180;
            break;
        case Surface.ROTATION_270:
            cwRotationFromNaturalToDisplay = 270;
            break;
        default:
            // Have seen this return incorrect values like -90
            if (displayRotation % 90 == 0) {
                cwRotationFromNaturalToDisplay = (360 + displayRotation) % 360;
            } else {
                throw new IllegalArgumentException("Bad rotation: " + displayRotation);
            }
    }
    Log.i(TAG, "Display at: " + cwRotationFromNaturalToDisplay);
    int cwRotationFromNaturalToCamera = camera.getOrientation();
    Log.i(TAG, "Camera at: " + cwRotationFromNaturalToCamera);
    // Still not 100% sure about this. But acts like we need to flip this:
    if (camera.getFacing() == CameraFacing.FRONT) {
        cwRotationFromNaturalToCamera = (360 - cwRotationFromNaturalToCamera) % 360;
        Log.i(TAG, "Front camera overriden to: " + cwRotationFromNaturalToCamera);
    }
    /*
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
    String overrideRotationString;
    if (camera.getFacing() == CameraFacing.FRONT) {
      overrideRotationString = prefs.getString(PreferencesActivity.KEY_FORCE_CAMERA_ORIENTATION_FRONT, null);
    } else {
      overrideRotationString = prefs.getString(PreferencesActivity.KEY_FORCE_CAMERA_ORIENTATION, null);
    }
    if (overrideRotationString != null && !"-".equals(overrideRotationString)) {
      Log.i(TAG, "Overriding camera manually to " + overrideRotationString);
      cwRotationFromNaturalToCamera = Integer.parseInt(overrideRotationString);
    }
     */
    cwRotationFromDisplayToCamera = (360 + cwRotationFromNaturalToCamera - cwRotationFromNaturalToDisplay) % 360;
    Log.i(TAG, "Final display orientation: " + cwRotationFromDisplayToCamera);
    if (camera.getFacing() == CameraFacing.FRONT) {
        Log.i(TAG, "Compensating rotation for front camera");
        cwNeededRotation = (360 - cwRotationFromDisplayToCamera) % 360;
    } else {
        cwNeededRotation = cwRotationFromDisplayToCamera;
    }
    Log.i(TAG, "Clockwise rotation from display to camera: " + cwNeededRotation);
    Point theScreenResolution = new Point();
    display.getSize(theScreenResolution);
    screenResolution = theScreenResolution;
    Log.i(TAG, "Screen resolution in current orientation: " + screenResolution);
    cameraResolution = CameraConfigurationUtils.findBestPreviewSizeValue(parameters, screenResolution);
    Log.i(TAG, "Camera resolution: " + cameraResolution);
    bestPreviewSize = CameraConfigurationUtils.findBestPreviewSizeValue(parameters, screenResolution);
    Log.i(TAG, "Best available preview size: " + bestPreviewSize);
    boolean isScreenPortrait = screenResolution.x < screenResolution.y;
    boolean isPreviewSizePortrait = bestPreviewSize.x < bestPreviewSize.y;
    if (isScreenPortrait == isPreviewSizePortrait) {
        previewSizeOnScreen = bestPreviewSize;
    } else {
        previewSizeOnScreen = new Point(bestPreviewSize.y, bestPreviewSize.x);
    }
    Log.i(TAG, "Preview size on screen: " + previewSizeOnScreen);
}

Example 15 with Camera

use of android.hardware.Camera in project android_frameworks_base by DirtyUnicorns.

the class ParameterUtils method convertSizeListToArray.

/**
     * Convert a camera API1 list of sizes into an array of sizes
     */
public static Size[] convertSizeListToArray(List<Camera.Size> sizeList) {
    checkNotNull(sizeList, "sizeList must not be null");
    Size[] array = new Size[sizeList.size()];
    int ctr = 0;
    for (Camera.Size s : sizeList) {
        array[ctr++] = new Size(s.width, s.height);
    }
    return array;
}