package com.basic.security.utils.yuv.pull.client;
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public class Utils {
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public static byte[] convertYUVtoRGB(byte[] yuv, int width, int height)
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throws NullPointerException, IllegalArgumentException {
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byte[] out = new byte[width * height];
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int sz = width * height;
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int i, j;
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int Y, Cr = 0, Cb = 0;
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for (j = 0; j < height; j++) {
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int pixPtr = j * width;
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final int jDiv2 = j >> 1;
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for (i = 0; i < width; i++) {
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Y = yuv[pixPtr];
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if (Y < 0)
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Y += 255;
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if ((i & 0x1) != 1) {
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final int cOff = sz + jDiv2 * width + (i >> 1) * 2;
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Cb = yuv[cOff];
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if (Cb < 0)
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Cb += 127;
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else
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Cb -= 128;
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Cr = yuv[cOff + 1];
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if (Cr < 0)
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Cr += 127;
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else
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Cr -= 128;
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}
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int R = Y + Cr + (Cr >> 2) + (Cr >> 3) + (Cr >> 5);
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if (R < 0)
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R = 0;
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else if (R > 255)
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R = 255;
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int G = Y - (Cb >> 2) + (Cb >> 4) + (Cb >> 5) - (Cr >> 1)
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+ (Cr >> 3) + (Cr >> 4) + (Cr >> 5);
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if (G < 0)
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G = 0;
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else if (G > 255)
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G = 255;
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int B = Y + Cb + (Cb >> 1) + (Cb >> 2) + (Cb >> 6);
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if (B < 0)
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B = 0;
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else if (B > 255)
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B = 255;
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out[pixPtr++] = (byte) (0xff000000 + (B << 16) + (G << 8) + R);
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}
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}
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return out;
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}
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}
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