Initial implementation of the DXVA 2.0 H.264 hardware decoder for pepper for Windows. The decodin...

content/gpu/gpu_main.cc

 // Copyright (c) 2011 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 <stdlib.h>
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include "base/environment.h"
 #include "base/message_loop.h"
 #include "base/stringprintf.h"
 #include "base/threading/platform_thread.h"
 #include "base/win/scoped_com_initializer.h"
 #include "build/build_config.h"
 #include "content/common/gpu/gpu_config.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/main_function_params.h"
 #include "content/gpu/gpu_child_thread.h"
 #include "content/gpu/gpu_process.h"
 #include "ui/gfx/gl/gl_surface.h"
 #include "ui/gfx/gl/gl_switches.h"
 
 #if defined(OS_WIN)
+#include "content/common/gpu/media/dxva_video_decode_accelerator.h"
 #include "sandbox/src/sandbox.h"
 #endif
 
 #if defined(USE_X11)
 #include "ui/base/x/x11_util.h"
 #endif
 
 #if defined(TOOLKIT_USES_GTK)
 #include "ui/gfx/gtk_util.h"
 #endif
@@ skipping 40 matching lines @@
   if (!gfx::GLSurface::InitializeOneOff()) {
     LOG(INFO) << "gfx::GLSurface::InitializeOneOff failed";
     dead_on_arrival = true;
   }
 
   base::win::ScopedCOMInitializer com_initializer;
 
 #if defined(OS_WIN)
   sandbox::TargetServices* target_services =
       parameters.sandbox_info->target_services;
+  // Load the dlls required for H/W video decoding before lowering the process
+  // token. The dlls like mfplat, d3d9, etc fail to load in the sandbox.
+  DXVAVideoDecodeAccelerator::LoadDecodingDlls();

[Ami GONE FROM CHROMIUM, 2011/12/21 06:13:55]

You'll need to get content/gpu/OWNERS' say-so on this.

[ananta, 2011/12/21 07:04:55]

Done.

   // For windows, if the target_services interface is not zero, the process
   // is sandboxed and we must call LowerToken() before rendering untrusted
   // content.
   if (target_services)
     target_services->LowerToken();
 #endif
 
   MessageLoop::Type message_loop_type = MessageLoop::TYPE_UI;
 #if defined(OS_WIN)
   // Unless we're running on desktop GL, we don't need a UI message
@@ skipping 17 matching lines @@
   child_thread->Init(start_time);
 
   gpu_process.set_main_thread(child_thread);
 
   main_message_loop.Run();
 
   child_thread->StopWatchdog();
 
   return 0;
 }