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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "media/base/win/mf_initializer.h" |
| 6 |
| 7 #include <mfapi.h> |
| 8 |
| 9 #include "base/lazy_instance.h" |
| 10 #include "base/macros.h" |
| 11 |
| 12 namespace media { |
| 13 |
| 14 namespace { |
| 15 |
| 16 // LazyInstance to initialize the Media Foundation Library. |
| 17 class MFInitializer { |
| 18 public: |
| 19 MFInitializer() |
| 20 : mf_started_(MFStartup(MF_VERSION, MFSTARTUP_LITE) == S_OK) {} |
| 21 |
| 22 ~MFInitializer() { |
| 23 if (mf_started_) |
| 24 MFShutdown(); |
| 25 } |
| 26 |
| 27 private: |
| 28 const bool mf_started_; |
| 29 |
| 30 DISALLOW_COPY_AND_ASSIGN(MFInitializer); |
| 31 }; |
| 32 |
| 33 base::LazyInstance<MFInitializer> g_mf_initializer = LAZY_INSTANCE_INITIALIZER; |
| 34 |
| 35 } // namespace |
| 36 |
| 37 void InitializeMediaFoundation() { |
| 38 g_mf_initializer.Get(); |
| 39 } |
| 40 |
| 41 } // namespace media |
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