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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 "build/build_config.h" | 5 #include "build/build_config.h" |
6 #include "media/base/media_switches.h" | 6 #include "media/base/media_switches.h" |
7 | 7 |
8 namespace switches { | 8 namespace switches { |
9 | 9 |
10 // Allow users to specify a custom buffer size for debugging purpose. | 10 // Allow users to specify a custom buffer size for debugging purpose. |
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63 | 63 |
64 #if defined(USE_CRAS) | 64 #if defined(USE_CRAS) |
65 // Use CRAS, the ChromeOS audio server. | 65 // Use CRAS, the ChromeOS audio server. |
66 const char kUseCras[] = "use-cras"; | 66 const char kUseCras[] = "use-cras"; |
67 #endif | 67 #endif |
68 | 68 |
69 #if !defined(OS_ANDROID) | 69 #if !defined(OS_ANDROID) |
70 // Use a media session for each tabs in a way that two tabs can't play on top of | 70 // Use a media session for each tabs in a way that two tabs can't play on top of |
71 // each other. This is different from the Media Session API as it is enabling a | 71 // each other. This is different from the Media Session API as it is enabling a |
72 // default behaviour for the browser. | 72 // default behaviour for the browser. |
73 const char kEnableDefaultMediaSession[] = "enable-default-media-session"; | 73 const char kEnableDefaultMediaSession[] = "enable-default-media-session"; |
xhwang
2016/10/18 17:26:59
Please add more comments about what the allowed va
Zhiqiang Zhang (Slow)
2016/10/18 18:51:54
Done.
| |
74 #endif | 74 |
75 #if defined(ENABLE_PLUGINS) | |
76 const char kEnableDefaultMediaSessionWithFlash[] = "with-flash"; | |
Alexei Svitkine (slow)
2016/10/18 16:51:38
Add a comment mentioning that this is the value fo
Zhiqiang Zhang (Slow)
2016/10/18 18:51:54
Done.
| |
77 #endif // defined(ENABLE_PLUGINS) | |
78 | |
79 #endif // !defined(OS_ANDROID) | |
75 | 80 |
76 // Use fake device for Media Stream to replace actual camera and microphone. | 81 // Use fake device for Media Stream to replace actual camera and microphone. |
77 const char kUseFakeDeviceForMediaStream[] = "use-fake-device-for-media-stream"; | 82 const char kUseFakeDeviceForMediaStream[] = "use-fake-device-for-media-stream"; |
78 | 83 |
79 // Use an .y4m file to play as the webcam. See the comments in | 84 // Use an .y4m file to play as the webcam. See the comments in |
80 // media/capture/video/file_video_capture_device.h for more details. | 85 // media/capture/video/file_video_capture_device.h for more details. |
81 const char kUseFileForFakeVideoCapture[] = "use-file-for-fake-video-capture"; | 86 const char kUseFileForFakeVideoCapture[] = "use-file-for-fake-video-capture"; |
82 | 87 |
83 // Play a .wav file as the microphone. Note that for WebRTC calls we'll treat | 88 // Play a .wav file as the microphone. Note that for WebRTC calls we'll treat |
84 // the bits as if they came from the microphone, which means you should disable | 89 // the bits as if they came from the microphone, which means you should disable |
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121 } // namespace switches | 126 } // namespace switches |
122 | 127 |
123 namespace media { | 128 namespace media { |
124 | 129 |
125 #if defined(OS_WIN) | 130 #if defined(OS_WIN) |
126 // Enables H264 HW encode acceleration using Media Foundation for Windows. | 131 // Enables H264 HW encode acceleration using Media Foundation for Windows. |
127 const base::Feature kMediaFoundationH264Encoding{ | 132 const base::Feature kMediaFoundationH264Encoding{ |
128 "MediaFoundationH264Encoding", base::FEATURE_DISABLED_BY_DEFAULT}; | 133 "MediaFoundationH264Encoding", base::FEATURE_DISABLED_BY_DEFAULT}; |
129 #endif // defined(OS_WIN) | 134 #endif // defined(OS_WIN) |
130 | 135 |
131 #if defined(ENABLE_PLUGINS) | |
132 // Let flash join and be controlled by media session, only valid when | |
133 // |kEnableDefaultMediaSession| is on. | |
134 const base::Feature kFlashJoinsMediaSession{"FlashJoinsMediaSession", | |
135 base::FEATURE_DISABLED_BY_DEFAULT}; | |
136 #endif // defined(ENABLE_PLUGINS) | |
137 | |
138 // Use new audio rendering mixer. | 136 // Use new audio rendering mixer. |
139 const base::Feature kNewAudioRenderingMixingStrategy{ | 137 const base::Feature kNewAudioRenderingMixingStrategy{ |
140 "NewAudioRenderingMixingStrategy", base::FEATURE_DISABLED_BY_DEFAULT}; | 138 "NewAudioRenderingMixingStrategy", base::FEATURE_DISABLED_BY_DEFAULT}; |
141 | 139 |
142 // Only used for disabling overlay fullscreen (aka SurfaceView) in Clank. | 140 // Only used for disabling overlay fullscreen (aka SurfaceView) in Clank. |
143 const base::Feature kOverlayFullscreenVideo{"overlay-fullscreen-video", | 141 const base::Feature kOverlayFullscreenVideo{"overlay-fullscreen-video", |
144 base::FEATURE_ENABLED_BY_DEFAULT}; | 142 base::FEATURE_ENABLED_BY_DEFAULT}; |
145 | 143 |
146 // Let videos be resumed via remote controls (for example, the notification) | 144 // Let videos be resumed via remote controls (for example, the notification) |
147 // when in background. | 145 // when in background. |
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168 const base::Feature kExternalClearKeyForTesting{ | 166 const base::Feature kExternalClearKeyForTesting{ |
169 "external-clear-key-for-testing", base::FEATURE_DISABLED_BY_DEFAULT}; | 167 "external-clear-key-for-testing", base::FEATURE_DISABLED_BY_DEFAULT}; |
170 | 168 |
171 #if defined(OS_ANDROID) | 169 #if defined(OS_ANDROID) |
172 // Replaces WPMA by the MediaPlayerRenderer for HLS and fallback playback. | 170 // Replaces WPMA by the MediaPlayerRenderer for HLS and fallback playback. |
173 const base::Feature kAndroidMediaPlayerRenderer{ | 171 const base::Feature kAndroidMediaPlayerRenderer{ |
174 "android-media-player-renderer", base::FEATURE_DISABLED_BY_DEFAULT}; | 172 "android-media-player-renderer", base::FEATURE_DISABLED_BY_DEFAULT}; |
175 #endif | 173 #endif |
176 | 174 |
177 } // namespace media | 175 } // namespace media |
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