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

Example 6 with Size

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

the class CameraSource method selectSizePair.

/**
     * Selects the most suitable preview and picture size, given the desired width and height.
     * <p/>
     * Even though we may only need the preview size, it's necessary to find both the preview
     * size and the picture size of the camera together, because these need to have the same aspect
     * ratio.  On some hardware, if you would only set the preview size, you will get a distorted
     * image.
     *
     * @param camera        the camera to select a preview size from
     * @param desiredWidth  the desired width of the camera preview frames
     * @param desiredHeight the desired height of the camera preview frames
     * @return the selected preview and picture size pair
     */
private static SizePair selectSizePair(Camera camera, int desiredWidth, int desiredHeight) {
    List<SizePair> validPreviewSizes = generateValidPreviewSizeList(camera);
    // The method for selecting the best size is to minimize the sum of the differences between
    // the desired values and the actual values for width and height.  This is certainly not the
    // only way to select the best size, but it provides a decent tradeoff between using the
    // closest aspect ratio vs. using the closest pixel area.
    SizePair selectedPair = null;
    int minDiff = Integer.MAX_VALUE;
    for (SizePair sizePair : validPreviewSizes) {
        Size size = sizePair.previewSize();
        int diff = Math.abs(size.getWidth() - desiredWidth) + Math.abs(size.getHeight() - desiredHeight);
        if (diff < minDiff) {
            selectedPair = sizePair;
            minDiff = diff;
        }
    }
    return selectedPair;
}

Example 7 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;
    }
}

Example 8 with Size

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

the class CameraSourcePreview method startIfReady.

private void startIfReady() throws IOException {
    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;
    }
}

Example 9 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 (IOException e) {
        Log.e(TAG, "Could not start camera source.", e);
    }
}

Example 10 with Size

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

the class CameraSourcePreview method startIfReady.

private void startIfReady() throws IOException {
    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;
    }
}