gistfile1.txt

// YUV形式からrgbに変換して戻します。
public static void decodeYCbCr(final int[] rgb, final byte[] yuv,	int width, int height) {
	int y = 0, u = 0, v = 0, r = 0, g = 0, b = 0;
	int yp = 0, uvp = width * (height - 1);
	for (int j = 0; j < height; j++) {
		if ((j & 1) == 0) {
			uvp += width;
		}
		for (int i = 0; i < width; i++) {
			if ((i & 1) == 0) {
				v = (yuv[uvp + i] & 0xff) - 128;
				u = (yuv[uvp + i + 1] & 0xff) - 128;
			}
			y = ((yuv[yp] & 0xff) - 16) * 1192;
			r = y + 1634 * v;
			g = y - 833 * v - 400 * u;
			b = y + 2066 * u;
			r = r < 0 ? 0 : (r > 0xff << 10 ? 0xff : r >> 10);
			g = g < 0 ? 0 : (g > 0xff << 10 ? 0xff : g >> 10);
			b = b < 0 ? 0 : (b > 0xff << 10 ? 0xff : b >> 10);
			rgb[yp++] = 0xff << 24 | r << 16 | g << 8 | b;
		}
	}
}