Created
March 14, 2017 16:28
-
-
Save feliwir/1f83f65e60b4ec41230a5a49c40a97c4 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
public static byte[] Yuv420pToRGB(byte[] y,byte[] u, byte[] v,uint width,uint height) | |
{ | |
uint size = width * height; | |
//Allocate the RGB buffer | |
byte[] buffer = new byte[size * 3]; | |
int uv_index = 0, pass = 0; | |
int b, g, r; | |
int rgb_index = 0; | |
for (int px=0; px<size/6;++px) | |
{ | |
if (pass == 2) | |
{ | |
pass = 0; | |
uv_index += 3; | |
} | |
int y1 = y[px]; | |
int y2 = y[px + 1]; | |
int y3 = y[px + 2]; | |
int y4 = y[px + 3]; | |
int y5 = y[px + 4]; | |
int y6 = y[px + 5]; | |
int u1 = u[uv_index]; | |
int u2 = u[uv_index + 1]; | |
int u3 = u[uv_index + 2]; | |
int v1 = v[uv_index]; | |
int v2 = v[uv_index + 1]; | |
int v3 = v[uv_index + 2]; | |
//1 | |
r = (int)(1.164 * (y1 - 16) + 1.596 * (v1 - 128)); | |
g = (int)(1.164 * (y1 - 16) - 0.813 * (v1 - 128) - 0.391 * (u1 - 128)); | |
b = (int)(1.164 * (y1 - 16) + 2.018 * (u1 - 128)); | |
buffer[rgb_index++] = Util.ClipByte(r); | |
buffer[rgb_index++] = Util.ClipByte(g); | |
buffer[rgb_index++] = Util.ClipByte(b); | |
//2 | |
r = (int)(1.164 * (y2 - 16) + 1.596 * (v1 - 128)); | |
g = (int)(1.164 * (y2 - 16) - 0.813 * (v1 - 128) - 0.391 * (u1 - 128)); | |
b = (int)(1.164 * (y2 - 16) + 2.018 * (u1 - 128)); | |
buffer[rgb_index++] = Util.ClipByte(r); | |
buffer[rgb_index++] = Util.ClipByte(g); | |
buffer[rgb_index++] = Util.ClipByte(b); | |
//3 | |
r = (int)(1.164 * (y3 - 16) + 1.596 * (v2 - 128)); | |
g = (int)(1.164 * (y3 - 16) - 0.813 * (v2 - 128) - 0.391 * (u2 - 128)); | |
b = (int)(1.164 * (y3 - 16) + 2.018 * (u2 - 128)); | |
buffer[rgb_index++] = Util.ClipByte(r); | |
buffer[rgb_index++] = Util.ClipByte(g); | |
buffer[rgb_index++] = Util.ClipByte(b); | |
//4 | |
r = (int)(1.164 * (y4 - 16) + 1.596 * (v2 - 128)); | |
g = (int)(1.164 * (y4 - 16) - 0.813 * (v2 - 128) - 0.391 * (u2 - 128)); | |
b = (int)(1.164 * (y4 - 16) + 2.018 * (u2 - 128)); | |
buffer[rgb_index++] = Util.ClipByte(r); | |
buffer[rgb_index++] = Util.ClipByte(g); | |
buffer[rgb_index++] = Util.ClipByte(b); | |
//5 | |
r = (int)(1.164 * (y5 - 16) + 1.596 * (v3 - 128)); | |
g = (int)(1.164 * (y5 - 16) - 0.813 * (v3 - 128) - 0.391 * (u3 - 128)); | |
b = (int)(1.164 * (y5 - 16) + 2.018 * (u3 - 128)); | |
buffer[rgb_index++] = Util.ClipByte(r); | |
buffer[rgb_index++] = Util.ClipByte(g); | |
buffer[rgb_index++] = Util.ClipByte(b); | |
//6 | |
r = (int)(1.164 * (y6 - 16) + 1.596 * (v3 - 128)); | |
g = (int)(1.164 * (y6 - 16) - 0.813 * (v3 - 128) - 0.391 * (u3 - 128)); | |
b = (int)(1.164 * (y6 - 16) + 2.018 * (u3 - 128)); | |
buffer[rgb_index++] = Util.ClipByte(r); | |
buffer[rgb_index++] = Util.ClipByte(g); | |
buffer[rgb_index++] = Util.ClipByte(b); | |
pass++; | |
} | |
return buffer; | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment