[FFmpeg-devel] [PATCH] Prevents crash from CreateDeviceEx and proper fallback to classic d3d9.

[Humberto Ribeiro]

---
 libavutil/hwcontext_dxva2.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libavutil/hwcontext_dxva2.c b/libavutil/hwcontext_dxva2.c
index 2ddd4be..44ebdbc 100644
--- a/libavutil/hwcontext_dxva2.c
+++ b/libavutil/hwcontext_dxva2.c
@@ -485,7 +485,11 @@ static int dxva2_device_create9ex(AVHWDeviceContext *ctx, 
UINT adapter)
     if (FAILED(hr))
         return AVERROR_UNKNOWN;
 
-    IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);
+    hr = IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);
+    if (FAILED(hr)) {
+        IDirect3D9Ex_Release(d3d9ex);
+        return AVERROR_UNKNOWN;
+    }
 
     d3dpp.BackBufferFormat = modeex.Format;
 
-- 
2.7.4

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