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Issue 1141703002: Chromium changes for static linking ffmpeg (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Roll DEPS to fix cros, rebase. Created 5 years, 6 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 // Contains code that should be used for initializing, or querying the state 5 // Contains code that should be used for initializing, or querying the state
6 // of the media library as a whole. 6 // of the media library as a whole.
7 7
8 #ifndef MEDIA_BASE_MEDIA_H_ 8 #ifndef MEDIA_BASE_MEDIA_H_
9 #define MEDIA_BASE_MEDIA_H_ 9 #define MEDIA_BASE_MEDIA_H_
10 10
11 #include "media/base/media_export.h" 11 #include "media/base/media_export.h"
12 12
13 namespace base { 13 namespace base {
14 class FilePath; 14 class FilePath;
15 } 15 }
16 16
17 namespace media { 17 namespace media {
18 18
19 // Attempts to initialize the media library (loading DLLs, DSOs, etc.). 19 // Initializes media libraries (e.g. ffmpeg) as well as CPU specific media
20 // 20 // features.
21 // If |module_dir| is the empty string, then the system default library paths 21 MEDIA_EXPORT void InitializeMediaLibrary();
22 // are searched for the dynamic libraries. If a |module_dir| is provided, then
23 // only the specified |module_dir| will be searched for the dynamic libraries.
24 //
25 // If multiple initializations are attempted with different |module_dir|s
26 // specified then the first one to succeed remains effective for the lifetime
27 // of the process.
28 //
29 // Returns true if everything was successfully initialized, false otherwise.
30 MEDIA_EXPORT bool InitializeMediaLibrary(const base::FilePath& module_dir);
31
32 // Helper function for unit tests to avoid boiler plate code everywhere. This
33 // function will crash if it fails to load the media library. This ensures tests
34 // fail if the media library is not available.
35 MEDIA_EXPORT void InitializeMediaLibraryForTesting();
36
37 // Use this if you need to check whether the media library is initialized
38 // for the this process, without actually trying to initialize it.
39 MEDIA_EXPORT bool IsMediaLibraryInitialized();
40
41 // Use this if you need to initialize CPU specific features WITHOUT loading
42 // DLLs, DSOs, etc. Only necessary if InitializeMediaLibrary() is not called;
43 // does nothing if the media library has already been initialized.
44 MEDIA_EXPORT void InitializeCPUSpecificMediaFeatures();
45 22
46 } // namespace media 23 } // namespace media
47 24
48 #endif // MEDIA_BASE_MEDIA_H_ 25 #endif // MEDIA_BASE_MEDIA_H_
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