media: use blocks number to find closest size

                            (double) mFrameRateRange.getUpper()));

        }

        private int getBlockCount(int width, int height) {

            return Utils.divUp(width, mBlockWidth) * Utils.divUp(height, mBlockHeight);

        }

        @NonNull

        private Size findClosestSize(int width, int height) {

            int targetPixels = width * height;

            int targetBlockCount = getBlockCount(width, height);

            Size closestSize = null;

            int mimPixelsDiff = Integer.MAX_VALUE;

            int minDiff = Integer.MAX_VALUE;

            for (Size size : mMeasuredFrameRates.keySet()) {

                int pixelsDiff = Math.abs(targetPixels - size.getWidth() * size.getHeight());

                if (pixelsDiff < mimPixelsDiff) {

                    mimPixelsDiff = pixelsDiff;

                int diff = Math.abs(targetBlockCount -

                        getBlockCount(size.getWidth(), size.getHeight()));

                if (diff < minDiff) {

                    minDiff = diff;

                    closestSize = size;

                }

            }