static void
yuv422p_yv12(int width, int height, const u_char **in, int *istride,
u_char **out, int *ostride)
{
copy_plane(0, 0, 1, 1);
red_plane(1, 2, 2, 1, 1, 2);
red_plane(2, 1, 2, 1, 1, 2);
}
Pixel Picture::get_pixel(int x, int y)
{
if ((x < 0) || ((unsigned)x >= width)) {
return (Pixel){.r=0, .g=0, .b=0, .a=0};
}
if ((y < 0) || ((unsigned)y >= height)) {
return (Pixel){.r=0, .g=0, .b=0, .a=0};
}
Pixel p;
unsigned index = x + y *height;
p.r = red_plane()[index];
p.g = green_plane()[index];
p.b = blue_plane()[index];
p.a = alpha_plane()[index];
return p;
}