ref: 3f03592d6961c9f33b681b3269803739766b0c4b
dir: /misc.h/
uvlong nanosec(void); void yuv420_rgb24( u32int width, u32int height, const u8int *Y, const u8int *U, const u8int *V, u32int Y_stride, u32int UV_stride, u8int *RGB, u32int RGB_stride); extern int nproc;