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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 #include "media/base/media.h" | 5 #include "media/base/media.h" |
6 | 6 |
7 #include <string> | 7 #include <string> |
8 | 8 |
9 #include "base/file_path.h" | 9 #include "base/file_path.h" |
10 #include "base/logging.h" | 10 #include "base/logging.h" |
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30 #error FFmpeg headers not included! | 30 #error FFmpeg headers not included! |
31 #endif | 31 #endif |
32 | 32 |
33 #define AVCODEC_VERSION STRINGIZE(LIBAVCODEC_VERSION_MAJOR) | 33 #define AVCODEC_VERSION STRINGIZE(LIBAVCODEC_VERSION_MAJOR) |
34 #define AVFORMAT_VERSION STRINGIZE(LIBAVFORMAT_VERSION_MAJOR) | 34 #define AVFORMAT_VERSION STRINGIZE(LIBAVFORMAT_VERSION_MAJOR) |
35 #define AVUTIL_VERSION STRINGIZE(LIBAVUTIL_VERSION_MAJOR) | 35 #define AVUTIL_VERSION STRINGIZE(LIBAVUTIL_VERSION_MAJOR) |
36 | 36 |
37 #if defined(OS_MACOSX) | 37 #if defined(OS_MACOSX) |
38 // TODO(evan): should be using .so like ffmepgsumo here. | 38 // TODO(evan): should be using .so like ffmepgsumo here. |
39 #define DSO_NAME(MODULE, VERSION) ("lib" MODULE "." VERSION ".dylib") | 39 #define DSO_NAME(MODULE, VERSION) ("lib" MODULE "." VERSION ".dylib") |
40 static const FilePath::CharType kSumoLib[] = | 40 static const base::FilePath::CharType kSumoLib[] = |
41 FILE_PATH_LITERAL("ffmpegsumo.so"); | 41 FILE_PATH_LITERAL("ffmpegsumo.so"); |
42 #elif defined(OS_POSIX) | 42 #elif defined(OS_POSIX) |
43 #define DSO_NAME(MODULE, VERSION) ("lib" MODULE ".so." VERSION) | 43 #define DSO_NAME(MODULE, VERSION) ("lib" MODULE ".so." VERSION) |
44 static const FilePath::CharType kSumoLib[] = | 44 static const base::FilePath::CharType kSumoLib[] = |
45 FILE_PATH_LITERAL("libffmpegsumo.so"); | 45 FILE_PATH_LITERAL("libffmpegsumo.so"); |
46 #else | 46 #else |
47 #error "Do not know how to construct DSO name for this OS." | 47 #error "Do not know how to construct DSO name for this OS." |
48 #endif | 48 #endif |
49 | 49 |
50 // Use a global to indicate whether the library has been initialized or not. We | 50 // Use a global to indicate whether the library has been initialized or not. We |
51 // rely on function level static initialization in InitializeMediaLibrary() to | 51 // rely on function level static initialization in InitializeMediaLibrary() to |
52 // guarantee this is only set once in a thread safe manner. | 52 // guarantee this is only set once in a thread safe manner. |
53 static bool g_media_library_is_initialized = false; | 53 static bool g_media_library_is_initialized = false; |
54 | 54 |
55 static bool InitializeMediaLibraryInternal(const FilePath& module_dir) { | 55 static bool InitializeMediaLibraryInternal(const base::FilePath& module_dir) { |
56 DCHECK(!g_media_library_is_initialized); | 56 DCHECK(!g_media_library_is_initialized); |
57 | 57 |
58 #if defined(USE_SYSTEM_FFMPEG) | 58 #if defined(USE_SYSTEM_FFMPEG) |
59 // No initialization is necessary when using system ffmpeg, | 59 // No initialization is necessary when using system ffmpeg, |
60 // we just link directly with system ffmpeg libraries. | 60 // we just link directly with system ffmpeg libraries. |
61 g_media_library_is_initialized = true; | 61 g_media_library_is_initialized = true; |
62 #else | 62 #else |
63 StubPathMap paths; | 63 StubPathMap paths; |
64 | 64 |
65 // First try to initialize with Chrome's sumo library. | 65 // First try to initialize with Chrome's sumo library. |
66 DCHECK_EQ(kNumStubModules, 1); | 66 DCHECK_EQ(kNumStubModules, 1); |
67 paths[kModuleFfmpegsumo].push_back(module_dir.Append(kSumoLib).value()); | 67 paths[kModuleFfmpegsumo].push_back(module_dir.Append(kSumoLib).value()); |
68 | 68 |
69 // If that fails, see if any system libraries are available. | 69 // If that fails, see if any system libraries are available. |
70 paths[kModuleFfmpegsumo].push_back(module_dir.Append( | 70 paths[kModuleFfmpegsumo].push_back(module_dir.Append( |
71 FILE_PATH_LITERAL(DSO_NAME("avutil", AVUTIL_VERSION))).value()); | 71 FILE_PATH_LITERAL(DSO_NAME("avutil", AVUTIL_VERSION))).value()); |
72 paths[kModuleFfmpegsumo].push_back(module_dir.Append( | 72 paths[kModuleFfmpegsumo].push_back(module_dir.Append( |
73 FILE_PATH_LITERAL(DSO_NAME("avcodec", AVCODEC_VERSION))).value()); | 73 FILE_PATH_LITERAL(DSO_NAME("avcodec", AVCODEC_VERSION))).value()); |
74 paths[kModuleFfmpegsumo].push_back(module_dir.Append( | 74 paths[kModuleFfmpegsumo].push_back(module_dir.Append( |
75 FILE_PATH_LITERAL(DSO_NAME("avformat", AVFORMAT_VERSION))).value()); | 75 FILE_PATH_LITERAL(DSO_NAME("avformat", AVFORMAT_VERSION))).value()); |
76 | 76 |
77 g_media_library_is_initialized = InitializeStubs(paths); | 77 g_media_library_is_initialized = InitializeStubs(paths); |
78 #endif // !defined(USE_SYSTEM_FFMPEG) | 78 #endif // !defined(USE_SYSTEM_FFMPEG) |
79 return g_media_library_is_initialized; | 79 return g_media_library_is_initialized; |
80 } | 80 } |
81 | 81 |
82 bool InitializeMediaLibrary(const FilePath& base_path) { | 82 bool InitializeMediaLibrary(const base::FilePath& base_path) { |
83 static const bool kMediaLibraryInitialized = | 83 static const bool kMediaLibraryInitialized = |
84 InitializeMediaLibraryInternal(base_path); | 84 InitializeMediaLibraryInternal(base_path); |
85 DCHECK_EQ(kMediaLibraryInitialized, g_media_library_is_initialized); | 85 DCHECK_EQ(kMediaLibraryInitialized, g_media_library_is_initialized); |
86 return kMediaLibraryInitialized; | 86 return kMediaLibraryInitialized; |
87 } | 87 } |
88 | 88 |
89 void InitializeMediaLibraryForTesting() { | 89 void InitializeMediaLibraryForTesting() { |
90 FilePath file_path; | 90 base::FilePath file_path; |
91 CHECK(PathService::Get(base::DIR_EXE, &file_path)); | 91 CHECK(PathService::Get(base::DIR_EXE, &file_path)); |
92 CHECK(InitializeMediaLibrary(file_path)); | 92 CHECK(InitializeMediaLibrary(file_path)); |
93 } | 93 } |
94 | 94 |
95 bool IsMediaLibraryInitialized() { | 95 bool IsMediaLibraryInitialized() { |
96 return g_media_library_is_initialized; | 96 return g_media_library_is_initialized; |
97 } | 97 } |
98 | 98 |
99 } // namespace media | 99 } // namespace media |
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