Fix IMFSample leak in DXVAVideoDecodeAccelerator

media/gpu/media_foundation_video_encode_accelerator_win.cc

 // Copyright 2016 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.
 
 #include "media/gpu/media_foundation_video_encode_accelerator_win.h"
 
 #pragma warning(push)
 #pragma warning(disable : 4800)  // Disable warning for added padding.
 
 #include <codecapi.h>
@@ skipping 182 matching lines @@
 
   if (!InitializeInputOutputSamples()) {
     DLOG(ERROR) << "Failed initializing input-output samples.";
     return false;
   }
 
   MFT_INPUT_STREAM_INFO input_stream_info;
   HRESULT hr =
       encoder_->GetInputStreamInfo(input_stream_id_, &input_stream_info);
   RETURN_ON_HR_FAILURE(hr, "Couldn't get input stream info", false);
-  input_sample_.Attach(mf::CreateEmptySampleWithBuffer(
+  input_sample_ = mf::CreateEmptySampleWithBuffer(
       input_stream_info.cbSize
           ? input_stream_info.cbSize
           : VideoFrame::AllocationSize(PIXEL_FORMAT_I420, input_visible_size_),
-      input_stream_info.cbAlignment));
+      input_stream_info.cbAlignment);
 
   MFT_OUTPUT_STREAM_INFO output_stream_info;
   hr = encoder_->GetOutputStreamInfo(output_stream_id_, &output_stream_info);
   RETURN_ON_HR_FAILURE(hr, "Couldn't get output stream info", false);
-  output_sample_.Attach(mf::CreateEmptySampleWithBuffer(
+  output_sample_ = mf::CreateEmptySampleWithBuffer(
       output_stream_info.cbSize
           ? output_stream_info.cbSize
           : bitstream_buffer_size_ * kOutputSampleBufferSizeRatio,
-      output_stream_info.cbAlignment));
+      output_stream_info.cbAlignment);
 
   hr = encoder_->ProcessMessage(MFT_MESSAGE_NOTIFY_BEGIN_STREAMING, NULL);
   RETURN_ON_HR_FAILURE(hr, "Couldn't set ProcessMessage", false);
 
   // Pin all client callbacks to the main task runner initially. It can be
   // reassigned by TryToSetupEncodeOnSeparateThread().
   if (!encode_client_task_runner_) {
     encode_client_task_runner_ = main_client_task_runner_;
     encode_client_ = main_client_;
   }
@@ skipping 468 matching lines @@
 void MediaFoundationVideoEncodeAccelerator::ReleaseEncoderResources() {
   encoder_.Release();
   codec_api_.Release();
   imf_input_media_type_.Release();
   imf_output_media_type_.Release();
   input_sample_.Release();
   output_sample_.Release();
 }
 
 }  // namespace content