Invalidate DXVA IMFTransform on Flush()

media/gpu/dxva_video_decode_accelerator_win.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_GPU_DXVA_VIDEO_DECODE_ACCELERATOR_WIN_H_
 #define MEDIA_GPU_DXVA_VIDEO_DECODE_ACCELERATOR_WIN_H_
 
 #include <d3d11_1.h>
 #include <d3d9.h>
 #include <initguid.h>
@@ skipping 220 matching lines @@
                            const gfx::ColorSpace& color_space);
 
   // Processes pending output samples by copying them to available picture
   // slots.
   void ProcessPendingSamples();
 
   // Helper function to notify the accelerator client about the error.
   void StopOnError(VideoDecodeAccelerator::Error error);
 
   // Transitions the decoder to the uninitialized state. The decoder will stop
-  // accepting requests in this state.
-  void Invalidate();
+  // accepting requests in this state. When invalidating for a config change,
+  // only the decoder needs to be destroyed - other things can stick around.
+  void Invalidate(bool for_config_change);
 
   // Stop and join on the decoder thread.
   void StopDecoderThread();
 
   // Notifies the client that the input buffer identifed by input_buffer_id has
   // been processed.
   void NotifyInputBufferRead(int input_buffer_id);
 
   // Notifies the client that the decoder was flushed.
   void NotifyFlushDone();
@@ skipping 335 matching lines @@
 
   // Function pointer for the MFCreateDXGIDeviceManager API.
   static CreateDXGIDeviceManager create_dxgi_device_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(DXVAVideoDecodeAccelerator);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_GPU_DXVA_VIDEO_DECODE_ACCELERATOR_WIN_H_