src/video/SDL_yuv.c: In function 'GetYUVPlanes.isra.1':
src/video/SDL_yuv.c:172:29: warning: 'pitches[1]' may be used uninitialized in this function [-Wmaybe-uninitialized]
         *uv_stride = pitches[1];
                      ~~~~~~~^~~
src/video/SDL_yuv.c:135:12: warning: 'planes[2]' may be used uninitialized in this function [-Wmaybe-uninitialized]
         *v = planes[2];
         ~~~^~~~~~~~~~~
src/video/SDL_yuv.c:171:17: warning: 'planes[1]' may be used uninitialized in this function [-Wmaybe-uninitialized]
         *u = *v + 1;
              ~~~^~~
src/video/SDL_yuv.c: In function 'SDL_ConvertPixels_YUV_to_RGB':
src/video/SDL_yuv.c:365:13: warning: 'yuv_type' may be used uninitialized in this function [-Wmaybe-uninitialized]
             yuvnv12_rgb565_std(width, height, y, u, v, y_stride, uv_stride, rgb, rgb_stride, yuv_type);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/video/SDL_yuv.c:403:15: note: 'yuv_type' was declared here
     YCbCrType yuv_type;
               ^~~~~~~~
src/video/SDL_yuv.c:365:13: warning: 'uv_stride' may be used uninitialized in this function [-Wmaybe-uninitialized]
             yuvnv12_rgb565_std(width, height, y, u, v, y_stride, uv_stride, rgb, rgb_stride, yuv_type);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/video/SDL_yuv.c:402:12: note: 'uv_stride' was declared here
     Uint32 uv_stride;
            ^~~~~~~~~
src/video/SDL_yuv.c:365:13: warning: 'y_stride' may be used uninitialized in this function [-Wmaybe-uninitialized]
             yuvnv12_rgb565_std(width, height, y, u, v, y_stride, uv_stride, rgb, rgb_stride, yuv_type);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/video/SDL_yuv.c:401:12: note: 'y_stride' was declared here
     Uint32 y_stride;
            ^~~~~~~~
src/video/SDL_yuv.c:365:13: warning: 'v' may be used uninitialized in this function [-Wmaybe-uninitialized]
             yuvnv12_rgb565_std(width, height, y, u, v, y_stride, uv_stride, rgb, rgb_stride, yuv_type);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/video/SDL_yuv.c:400:18: note: 'v' was declared here
     const Uint8 *v;
                  ^
src/video/SDL_yuv.c:365:13: warning: 'u' may be used uninitialized in this function [-Wmaybe-uninitialized]
             yuvnv12_rgb565_std(width, height, y, u, v, y_stride, uv_stride, rgb, rgb_stride, yuv_type);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/video/SDL_yuv.c:399:18: note: 'u' was declared here
     const Uint8 *u;
                  ^
src/video/SDL_yuv.c:365:13: warning: 'y' may be used uninitialized in this function [-Wmaybe-uninitialized]
             yuvnv12_rgb565_std(width, height, y, u, v, y_stride, uv_stride, rgb, rgb_stride, yuv_type);
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/video/SDL_yuv.c:398:15: note: 'y' was declared here
  const Uint8 *y;
               ^
src/video/SDL_yuv.c:130:29: warning: 'pitches[1]' may be used uninitialized in this function [-Wmaybe-uninitialized]
         *uv_stride = pitches[1];
                      ~~~~~~~^~~
src/video/SDL_yuv.c:95:9: note: 'pitches[1]' was declared here
     int pitches[3];
         ^~~~~~~
src/video/SDL_yuv.c:164:17: warning: 'planes[1]' may be used uninitialized in this function [-Wmaybe-uninitialized]
         *v = *u + 1;
              ~~~^~~
src/video/SDL_yuv.c:94:18: note: 'planes[1]' was declared here
     const Uint8 *planes[3];
                  ^~~~~~`