Heads up: ffmpeg 7.0 mingw build is broken on GCC 14

[marcosfrm]

These warnings from GCC 13

In file included from libavutil/hwcontext_dxva2.h:34,
                 from libavutil/hwcontext_qsv.c:39:
libavutil/hwcontext_qsv.c:770:68: warning: passing argument 3 of 'devmgr->lpVtbl->LockDevice' from incompatible pointer type [-Wincompatible-pointer-types]
  770 |     hr = IDirect3DDeviceManager9_LockDevice(devmgr, device_handle, &device, TRUE);
      |                                                                    ^~~~~~~
      |                                                                    |
      |                                                                    IDirect3DDevice9Ex **
libavutil/hwcontext_qsv.c:770:68: note: expected 'IDirect3DDevice9 **' but argument is of type 'IDirect3DDevice9Ex **'

[...]

In file included from libavutil/hwcontext_dxva2.h:33:
libavutil/hwcontext_qsv.c:784:49: warning: passing argument 2 of 'device->lpVtbl->GetDirect3D' from incompatible pointer type [-Wincompatible-pointer-types]
  784 |     hr = IDirect3DDevice9Ex_GetDirect3D(device, &d3d9ex);
      |                                                 ^~~~~~~
      |                                                 |
      |                                                 IDirect3D9Ex **
libavutil/hwcontext_qsv.c:784:49: note: expected 'IDirect3D9 **' but argument is of type 'IDirect3D9Ex **'

are now errors on GCC 14:

In file included from libavutil/hwcontext_dxva2.h:34,
                 from libavutil/hwcontext_qsv.c:39:
libavutil/hwcontext_qsv.c:770:68: error: passing argument 3 of 'devmgr->lpVtbl->LockDevice' from incompatible pointer type [-Wincompatible-pointer-types]
  770 |     hr = IDirect3DDeviceManager9_LockDevice(devmgr, device_handle, &device, TRUE);
      |                                                                    ^~~~~~~
      |                                                                    |
      |                                                                    IDirect3DDevice9Ex **
libavutil/hwcontext_qsv.c:770:68: note: expected 'IDirect3DDevice9 **' but argument is of type 'IDirect3DDevice9Ex **'

[...]

In file included from libavutil/hwcontext_dxva2.h:33:
libavutil/hwcontext_qsv.c:784:49: error: passing argument 2 of 'device->lpVtbl->GetDirect3D' from incompatible pointer type [-Wincompatible-pointer-types]
  784 |     hr = IDirect3DDevice9Ex_GetDirect3D(device, &d3d9ex);
      |                                                 ^~~~~~~
      |                                                 |
      |                                                 IDirect3D9Ex **
libavutil/hwcontext_qsv.c:784:49: note: expected 'IDirect3D9 **' but argument is of type 'IDirect3D9Ex **'

https://gcc.gnu.org/gcc-14/porting_to.html#incompatible-pointer-types

[marcosfrm]

Fixed by

https://git.ffmpeg.org/gitweb/ffmpeg.git/patch/45d31614bcc54c5ccbaabf07e7336ac477e2b424

[galad87]

Should be fixed in #6084

[marcosfrm]

Thanks!