H/W decoded H.264 videos would not play at times on Windows 8. This was because the DXVA decoder in…

content/common/gpu/media/dxva_video_decode_accelerator.cc

 // 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.
 
 #include "content/common/gpu/media/dxva_video_decode_accelerator.h"
 
 #if !defined(OS_WIN)
 #error This file should only be built on Windows.
 #endif   // !defined(OS_WIN)
 
@@ skipping 566 matching lines @@
 
   RETURN_AND_NOTIFY_ON_HR_FAILURE(sample->SetSampleTime(bitstream_buffer.id()),
       "Failed to associate input buffer id with sample", PLATFORM_FAILURE,);
 
   if (!inputs_before_decode_) {
     TRACE_EVENT_BEGIN_ETW("DXVAVideoDecodeAccelerator.Decoding", this, "");
   }
   inputs_before_decode_++;
 
   HRESULT hr = decoder_->ProcessInput(0, sample, 0);
+  // As per msdn if the decoder returns MF_E_NOTACCEPTING then it means that it
+  // has enough data to produce an output sample. In this case the recommended
+  // options are to
+  // 1. Generate new output by calling IMFTransform::ProcessOutput
+  // 2. Flush the input data
+  // We implement the first option, i.e to retrieve the output sample and then
+  // process the input again. Failure in either of these steps is treated as a
+  // decoder failure.
+  if (hr == MF_E_NOTACCEPTING) {
+    DoDecode();
+    RETURN_AND_NOTIFY_ON_FAILURE((state_ == kStopped || state_ == kNormal),
+        "Failed to process output. Unexpected decoder state: " << state_,
+        PLATFORM_FAILURE,);
+    hr = decoder_->ProcessInput(0, sample, 0);
+  }
   RETURN_AND_NOTIFY_ON_HR_FAILURE(hr, "Failed to process input sample",
       PLATFORM_FAILURE,);
 
   state_ = kEosDrain;
 
   DoDecode();
 
   RETURN_AND_NOTIFY_ON_FAILURE((state_ == kStopped || state_ == kNormal),
       "Failed to process output. Unexpected decoder state: " << state_,
       ILLEGAL_STATE,);
@@ skipping 459 matching lines @@
         GL_TEXTURE_2D);
   }
 }
 
 void DXVAVideoDecodeAccelerator::NotifyPictureReady(
     const media::Picture& picture) {
   // This task could execute after the decoder has been torn down.
   if (state_ != kUninitialized && client_)
     client_->PictureReady(picture);
 }