[FFmpeg-cvslog] avutil/hwcontext_d3d11va: prefer DXGI 1.1 factory when available

[Timo Rothenpieler]

ffmpeg | branch: release/6.1 | Timo Rothenpieler <timo at rothenpieler.org> | Wed Mar 13 20:03:42 2024 +0100| [98436c51becde56a961f3faad3037a17d64f310c] | committer: Timo Rothenpieler

avutil/hwcontext_d3d11va: prefer DXGI 1.1 factory when available

A lot of modern stuff straight up fails on the old 1.0 factory, which is
masked by the fact that it's only used when an explicit adapter is
specified.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=98436c51becde56a961f3faad3037a17d64f310c
---

 libavutil/hwcontext_d3d11va.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavutil/hwcontext_d3d11va.c b/libavutil/hwcontext_d3d11va.c
index cc8c97d2b6..26cebbb650 100644
--- a/libavutil/hwcontext_d3d11va.c
+++ b/libavutil/hwcontext_d3d11va.c
@@ -62,7 +62,9 @@ static av_cold void load_functions(void)
         return;
 
     mD3D11CreateDevice = (PFN_D3D11_CREATE_DEVICE) GetProcAddress(d3dlib, "D3D11CreateDevice");
-    mCreateDXGIFactory = (PFN_CREATE_DXGI_FACTORY) GetProcAddress(dxgilib, "CreateDXGIFactory");
+    mCreateDXGIFactory = (PFN_CREATE_DXGI_FACTORY) GetProcAddress(dxgilib, "CreateDXGIFactory1");
+    if (!mCreateDXGIFactory)
+        mCreateDXGIFactory = (PFN_CREATE_DXGI_FACTORY) GetProcAddress(dxgilib, "CreateDXGIFactory");
 #else
     // In UWP (which lacks LoadLibrary), CreateDXGIFactory isn't available,
     // only CreateDXGIFactory1