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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 #ifndef MEDIA_BASE_PIPELINE_H_ | 5 #ifndef MEDIA_BASE_PIPELINE_H_ |
6 #define MEDIA_BASE_PIPELINE_H_ | 6 #define MEDIA_BASE_PIPELINE_H_ |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "base/time/time.h" | 9 #include "base/time/time.h" |
10 #include "media/base/buffering_state.h" | 10 #include "media/base/buffering_state.h" |
11 #include "media/base/cdm_context.h" | 11 #include "media/base/cdm_context.h" |
12 #include "media/base/media_export.h" | 12 #include "media/base/media_export.h" |
13 #include "media/base/pipeline_status.h" | 13 #include "media/base/pipeline_status.h" |
14 #include "media/base/ranges.h" | 14 #include "media/base/ranges.h" |
15 #include "media/base/text_track.h" | 15 #include "media/base/text_track.h" |
16 #include "media/base/video_rotation.h" | 16 #include "media/base/video_rotation.h" |
17 #include "ui/gfx/geometry/size.h" | 17 #include "ui/gfx/geometry/size.h" |
18 | 18 |
19 namespace media { | 19 namespace media { |
20 | 20 |
21 class Demuxer; | 21 class Demuxer; |
22 class DemuxerStream; | |
23 class Renderer; | 22 class Renderer; |
24 class VideoFrame; | 23 class VideoFrame; |
25 | 24 |
26 // Metadata describing a pipeline once it has been initialized. | 25 // Metadata describing a pipeline once it has been initialized. |
27 struct PipelineMetadata { | 26 struct PipelineMetadata { |
28 PipelineMetadata() | 27 PipelineMetadata() |
29 : has_audio(false), has_video(false), video_rotation(VIDEO_ROTATION_0) {} | 28 : has_audio(false), has_video(false), video_rotation(VIDEO_ROTATION_0) {} |
30 | 29 |
31 bool has_audio; | 30 bool has_audio; |
32 bool has_video; | 31 bool has_video; |
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149 | 148 |
150 // Return true if loading progress has been made since the last time this | 149 // Return true if loading progress has been made since the last time this |
151 // method was called. | 150 // method was called. |
152 virtual bool DidLoadingProgress() = 0; | 151 virtual bool DidLoadingProgress() = 0; |
153 | 152 |
154 // Gets the current pipeline statistics. | 153 // Gets the current pipeline statistics. |
155 virtual PipelineStatistics GetStatistics() const = 0; | 154 virtual PipelineStatistics GetStatistics() const = 0; |
156 | 155 |
157 virtual void SetCdm(CdmContext* cdm_context, | 156 virtual void SetCdm(CdmContext* cdm_context, |
158 const CdmAttachedCB& cdm_attached_cb) = 0; | 157 const CdmAttachedCB& cdm_attached_cb) = 0; |
159 | |
160 // Notifies pipeline that the set of enabled audio streams/tracks has changed. | |
161 virtual void OnEnabledAudioStreamsChanged( | |
162 const std::vector<const DemuxerStream*>& enabledAudioStreams) {} | |
163 | |
164 // Notifies pipeline that the selected video stream has changed. The input | |
165 // parameter |selectedVideoStream| can be null, which means video is disabled. | |
166 virtual void OnSelectedVideoStreamChanged( | |
167 const DemuxerStream* selectedVideoStream) {} | |
168 }; | 158 }; |
169 | 159 |
170 } // namespace media | 160 } // namespace media |
171 | 161 |
172 #endif // MEDIA_BASE_PIPELINE_H_ | 162 #endif // MEDIA_BASE_PIPELINE_H_ |
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