d3d11: show the active decoder device

2 files changed, 18 insertions, 0 deletions

diff --git a/decoder/LAVVideo/decoders/d3d11va.cpp b/decoder/LAVVideo/decoders/d3d11va.cpp
index 15585654..31565d20 100644
--- a/decoder/LAVVideo/decoders/d3d11va.cpp
+++ b/decoder/LAVVideo/decoders/d3d11va.cpp
@@ -218,6 +218,10 @@ enum_adapter:
     goto fail;
   }
 
+  // store adapter info
+  ZeroMemory(&m_AdapterDesc, sizeof(m_AdapterDesc));
+  pDXGIAdapter->GetDesc(&m_AdapterDesc);
+
   // done with the DXGI interface
   SafeRelease(&pDXGIFactory);
   SafeRelease(&pDXGIAdapter);
@@ -1034,3 +1038,14 @@ STDMETHODIMP CDecD3D11::GetPixelFormat(LAVPixelFormat *pPix, int *pBpp)
 
   return S_OK;
 }
+
+STDMETHODIMP CDecD3D11::GetHWAccelActiveDevice(BSTR *pstrDeviceName)
+{
+  CheckPointer(pstrDeviceName, E_POINTER);
+
+  if (m_AdapterDesc.Description[0] == 0)
+    return E_UNEXPECTED;
+
+  *pstrDeviceName = SysAllocString(m_AdapterDesc.Description);
+  return S_OK;
+}
diff --git a/decoder/LAVVideo/decoders/d3d11va.h b/decoder/LAVVideo/decoders/d3d11va.h
index 722c7cfc..965de0ec 100644
--- a/decoder/LAVVideo/decoders/d3d11va.h
+++ b/decoder/LAVVideo/decoders/d3d11va.h
@@ -54,6 +54,7 @@ public:
   STDMETHODIMP_(const WCHAR*) GetDecoderName() { return m_bReadBackFallback ? (m_bDirect ? L"d3d11 cb direct" : L"d3d11 cb") : L"d3d11 native"; }
   STDMETHODIMP HasThreadSafeBuffers() { return S_FALSE; }
   STDMETHODIMP SetDirectOutput(BOOL bDirect) { m_bDirect = bDirect; return S_OK; }
+  STDMETHODIMP GetHWAccelActiveDevice(BSTR *pstrDeviceName);
 
   // CDecBase
   STDMETHODIMP Init();
@@ -122,5 +123,7 @@ private:
     PFN_CREATE_DXGI_FACTORY1 mCreateDXGIFactory1;
   } dx = { 0 };
 
+  DXGI_ADAPTER_DESC m_AdapterDesc = { 0 };
+
   friend class CD3D11SurfaceAllocator;
 };