Examples with Size com.google.android.gms.common.images.Size used on opensource projects

Example 11 with Size

use of com.google.android.gms.common.images.Size in project android-vision by googlesamples.

the class CameraSourcePreview method onLayout.

@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
    int width = 320;
    int height = 240;
    if (mCameraSource != null) {
        Size size = mCameraSource.getPreviewSize();
        if (size != null) {
            width = size.getWidth();
            height = size.getHeight();
        }
    }
    // Swap width and height sizes when in portrait, since it will be rotated 90 degrees
    if (isPortraitMode()) {
        int tmp = width;
        //noinspection SuspiciousNameCombination
        width = height;
        height = tmp;
    }
    final int layoutWidth = right - left;
    final int layoutHeight = bottom - top;
    // Computes height and width for potentially doing fit width.
    int childWidth = layoutWidth;
    int childHeight = (int) (((float) layoutWidth / (float) width) * height);
    // If height is too tall using fit width, does fit height instead.
    if (childHeight > layoutHeight) {
        childHeight = layoutHeight;
        childWidth = (int) (((float) layoutHeight / (float) height) * width);
    }
    for (int i = 0; i < getChildCount(); ++i) {
        getChildAt(i).layout(0, 0, childWidth, childHeight);
    }
    try {
        startIfReady();
    } catch (SecurityException se) {
        Log.e(TAG, "Do not have permission to start the camera", se);
    } catch (IOException e) {
        Log.e(TAG, "Could not start camera source.", e);
    }
}

Example 12 with Size

use of com.google.android.gms.common.images.Size in project android-vision by googlesamples.

the class CameraSource method createCamera.

/**
     * Opens the camera and applies the user settings.
     *
     * @throws RuntimeException if the method fails
     */
@SuppressLint("InlinedApi")
private Camera createCamera() {
    int requestedCameraId = getIdForRequestedCamera(mFacing);
    if (requestedCameraId == -1) {
        throw new RuntimeException("Could not find requested camera.");
    }
    Camera camera = Camera.open(requestedCameraId);
    SizePair sizePair = selectSizePair(camera, mRequestedPreviewWidth, mRequestedPreviewHeight);
    if (sizePair == null) {
        throw new RuntimeException("Could not find suitable preview size.");
    }
    Size pictureSize = sizePair.pictureSize();
    mPreviewSize = sizePair.previewSize();
    int[] previewFpsRange = selectPreviewFpsRange(camera, mRequestedFps);
    if (previewFpsRange == null) {
        throw new RuntimeException("Could not find suitable preview frames per second range.");
    }
    Camera.Parameters parameters = camera.getParameters();
    if (pictureSize != null) {
        parameters.setPictureSize(pictureSize.getWidth(), pictureSize.getHeight());
    }
    parameters.setPreviewSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());
    parameters.setPreviewFpsRange(previewFpsRange[Camera.Parameters.PREVIEW_FPS_MIN_INDEX], previewFpsRange[Camera.Parameters.PREVIEW_FPS_MAX_INDEX]);
    parameters.setPreviewFormat(ImageFormat.NV21);
    setRotation(camera, parameters, requestedCameraId);
    if (mFocusMode != null) {
        if (parameters.getSupportedFocusModes().contains(mFocusMode)) {
            parameters.setFocusMode(mFocusMode);
        } else {
            Log.i(TAG, "Camera focus mode: " + mFocusMode + " is not supported on this device.");
        }
    }
    // setting mFocusMode to the one set in the params
    mFocusMode = parameters.getFocusMode();
    if (mFlashMode != null) {
        if (parameters.getSupportedFlashModes().contains(mFlashMode)) {
            parameters.setFlashMode(mFlashMode);
        } else {
            Log.i(TAG, "Camera flash mode: " + mFlashMode + " is not supported on this device.");
        }
    }
    // setting mFlashMode to the one set in the params
    mFlashMode = parameters.getFlashMode();
    camera.setParameters(parameters);
    // Four frame buffers are needed for working with the camera:
    //
    //   one for the frame that is currently being executed upon in doing detection
    //   one for the next pending frame to process immediately upon completing detection
    //   two for the frames that the camera uses to populate future preview images
    camera.setPreviewCallbackWithBuffer(new CameraPreviewCallback());
    camera.addCallbackBuffer(createPreviewBuffer(mPreviewSize));
    camera.addCallbackBuffer(createPreviewBuffer(mPreviewSize));
    camera.addCallbackBuffer(createPreviewBuffer(mPreviewSize));
    camera.addCallbackBuffer(createPreviewBuffer(mPreviewSize));
    return camera;
}

Example 13 with Size

use of com.google.android.gms.common.images.Size in project android-vision by googlesamples.

the class CameraSourcePreview method onLayout.

@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
    int previewWidth = 320;
    int previewHeight = 240;
    if (mCameraSource != null) {
        Size size = mCameraSource.getPreviewSize();
        if (size != null) {
            previewWidth = size.getWidth();
            previewHeight = size.getHeight();
        }
    }
    // Swap width and height sizes when in portrait, since it will be rotated 90 degrees
    if (isPortraitMode()) {
        int tmp = previewWidth;
        previewWidth = previewHeight;
        previewHeight = tmp;
    }
    final int viewWidth = right - left;
    final int viewHeight = bottom - top;
    int childWidth;
    int childHeight;
    int childXOffset = 0;
    int childYOffset = 0;
    float widthRatio = (float) viewWidth / (float) previewWidth;
    float heightRatio = (float) viewHeight / (float) previewHeight;
    // compute a crop offset for the other dimension.
    if (widthRatio > heightRatio) {
        childWidth = viewWidth;
        childHeight = (int) ((float) previewHeight * widthRatio);
        childYOffset = (childHeight - viewHeight) / 2;
    } else {
        childWidth = (int) ((float) previewWidth * heightRatio);
        childHeight = viewHeight;
        childXOffset = (childWidth - viewWidth) / 2;
    }
    for (int i = 0; i < getChildCount(); ++i) {
        // One dimension will be cropped.  We shift child over or up by this offset and adjust
        // the size to maintain the proper aspect ratio.
        getChildAt(i).layout(-1 * childXOffset, -1 * childYOffset, childWidth - childXOffset, childHeight - childYOffset);
    }
    try {
        startIfReady();
    } catch (SecurityException se) {
        Log.e(TAG, "Do not have permission to start the camera", se);
    } catch (IOException e) {
        Log.e(TAG, "Could not start camera source.", e);
    }
}

Example 14 with Size

use of com.google.android.gms.common.images.Size in project android-vision by googlesamples.

the class CameraSourcePreview method startIfReady.

@RequiresPermission(Manifest.permission.CAMERA)
private void startIfReady() throws IOException, SecurityException {
    if (mStartRequested && mSurfaceAvailable) {
        mCameraSource.start(mSurfaceView.getHolder());
        if (mOverlay != null) {
            Size size = mCameraSource.getPreviewSize();
            int min = Math.min(size.getWidth(), size.getHeight());
            int max = Math.max(size.getWidth(), size.getHeight());
            if (isPortraitMode()) {
                // Swap width and height sizes when in portrait, since it will be rotated by
                // 90 degrees
                mOverlay.setCameraInfo(min, max, mCameraSource.getCameraFacing());
            } else {
                mOverlay.setCameraInfo(max, min, mCameraSource.getCameraFacing());
            }
            mOverlay.clear();
        }
        mStartRequested = false;
    }
}