Bug 1397307 - P3. Remove unused method. r=gerald

Code was incorrect anyway.

MozReview-Commit-ID: Bf0O4Mhu1P6

--HG--
extra : rebase_source : 79ff66e3bec257b9f72e8af9b06b023715172d69

dom/media/platforms/wmf/DXVA2Manager.cpp

@@ -143,9 +143,6 @@ public:
 
   bool SupportsConfig(IMFMediaType* aType, float aFramerate) override;
 
-  bool CreateDXVA2Decoder(const VideoInfo& aVideoInfo,
-                          nsACString& aFailureReason) override;
-
 private:
   bool CanCreateDecoder(const DXVA2_VideoDesc& aDesc,
                         const float aFramerate) const;
@@ -543,31 +540,6 @@ DXVA2Manager::CreateD3D9DXVA(layers::KnowsCompositor* aKnowsCompositor,
   return nullptr;
 }
 
-bool
-D3D9DXVA2Manager::CreateDXVA2Decoder(const VideoInfo& aVideoInfo,
-                                     nsACString& aFailureReason)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  DXVA2_VideoDesc desc;
-  desc.SampleWidth = aVideoInfo.mImage.width;
-  desc.SampleHeight = aVideoInfo.mImage.height;
-  desc.Format = (D3DFORMAT)MAKEFOURCC('N','V','1','2');
-
-  // Assume the current duration is representative for the entire video.
-  float framerate = 1000000.0 / aVideoInfo.mDuration.ToMicroseconds();
-  if (IsUnsupportedResolution(desc.SampleWidth, desc.SampleHeight, framerate)) {
-    return false;
-  }
-
-  mDecoder = CreateDecoder(desc);
-  if (!mDecoder) {
-    aFailureReason =
-      nsPrintfCString("Fail to create video decoder in D3D9DXVA2Manager.");
-    return false;
-  }
-  return true;
-}
-
 bool
 D3D9DXVA2Manager::CanCreateDecoder(const DXVA2_VideoDesc& aDesc,
                                    const float aFramerate) const
@@ -658,9 +630,6 @@ public:
 
   bool SupportsConfig(IMFMediaType* aType, float aFramerate) override;
 
-  bool CreateDXVA2Decoder(const VideoInfo& aVideoInfo,
-                          nsACString& aFailureReason) override;
-
 private:
   HRESULT CreateFormatConverter();
 
@@ -1183,32 +1152,6 @@ D3D11DXVA2Manager::ConfigureForSize(uint32_t aWidth, uint32_t aHeight)
   return S_OK;
 }
 
-bool
-D3D11DXVA2Manager::CreateDXVA2Decoder(const VideoInfo& aVideoInfo,
-                                      nsACString& aFailureReason)
-{
-  MOZ_ASSERT(NS_IsMainThread());
-  D3D11_VIDEO_DECODER_DESC desc;
-  desc.Guid = mDecoderGUID;
-  desc.OutputFormat = DXGI_FORMAT_NV12;
-  desc.SampleWidth = aVideoInfo.mImage.width;
-  desc.SampleHeight = aVideoInfo.mImage.height;
-
-  // Assume the current duration is representative for the entire video.
-  float framerate = 1000000.0 / aVideoInfo.mDuration.ToMicroseconds();
-  if (IsUnsupportedResolution(desc.SampleWidth, desc.SampleHeight, framerate)) {
-    return false;
-  }
-
-  mDecoder = CreateDecoder(desc);
-  if (!mDecoder) {
-    aFailureReason =
-      nsPrintfCString("Fail to create video decoder in D3D11DXVA2Manager.");
-    return false;
-  }
-  return true;
-}
-
 bool
 D3D11DXVA2Manager::CanCreateDecoder(const D3D11_VIDEO_DECODER_DESC& aDesc,
                                     const float aFramerate) const

dom/media/platforms/wmf/DXVA2Manager.h

@@ -65,12 +65,6 @@ public:
 
   virtual bool SupportsConfig(IMFMediaType* aType, float aFramerate) = 0;
 
-  // When we want to decode with DXVA2 directly instead of using it by MFT, we
-  // need to take responsibility for creating a decoder and handle the related
-  // decoding operations by ourself.
-  virtual bool CreateDXVA2Decoder(const VideoInfo& aVideoInfo,
-                                  nsACString& aFailureReason) = 0;
-
   static bool IsNV12Supported(uint32_t aVendorID,
                               uint32_t aDeviceID,
                               const nsAString& aDriverVersionString);