yuv格式转换

标签：orm   yuv42   put   else   mes   bytes   decode   final   code   

public static void decodeYUV420SPrgb565(int[] rgb, byte[] yuv420sp, int width,
int height) {
final int frameSize = width * height;
for (int j = 0, yp = 0; j < height; j++) {
int uvp = frameSize + (j >> 1) * width, u = 0, v = 0;
for (int i = 0; i < width; i++, yp++) {
int y = (0xff & ((int) yuv420sp[yp])) - 16;
if (y < 0)
y = 0;
if ((i & 1) == 0) {
v = (0xff & yuv420sp[uvp++]) - 128;
u = (0xff & yuv420sp[uvp++]) - 128;
}
int y1192 = 1192 * y;
int r = (y1192 + 1634 * v);
int g = (y1192 - 833 * v - 400 * u);
int b = (y1192 + 2066 * u);
if (r < 0)
r = 0;
else if (r > 262143)
r = 262143;
if (g < 0)
g = 0;
else if (g > 262143)
g = 262143;
if (b < 0)
b = 0;
else if (b > 262143)
b = 262143;
rgb[yp] = 0xff000000 | ((r << 6) & 0xff0000)
| ((g >> 2) & 0xff00) | ((b >> 10) & 0xff);
}
}
}

public static void save(byte[] yuv420, String path, int width, int height,
int quality) {
int[] bytes = new int[width * height * 3];
decodeYUV420SPrgb565(bytes, yuv420, width, height);
Bitmap bitmap = Bitmap.createBitmap(bytes, width, height,
Config.RGB_565);
File file2 = new File(path);
try {
FileOutputStream out = new FileOutputStream(file2);
if (bitmap.compress(Bitmap.CompressFormat.JPEG, quality, out)) {
out.flush();
out.close();
}
} catch (Exception e) {
}
}

yuv格式转换

标签：orm   yuv42   put   else   mes   bytes   decode   final   code   

原文地址：https://www.cnblogs.com/ymec/p/14604164.html