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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_SOURCE_H_ | 5 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_SOURCE_H_ |
6 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_SOURCE_H_ | 6 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_SOURCE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
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64 static MediaStreamVideoSource* GetVideoSource( | 64 static MediaStreamVideoSource* GetVideoSource( |
65 const blink::WebMediaStreamSource& source); | 65 const blink::WebMediaStreamSource& source); |
66 | 66 |
67 // Puts |track| in the registered tracks list. | 67 // Puts |track| in the registered tracks list. |
68 void AddTrack(MediaStreamVideoTrack* track, | 68 void AddTrack(MediaStreamVideoTrack* track, |
69 const VideoCaptureDeliverFrameCB& frame_callback, | 69 const VideoCaptureDeliverFrameCB& frame_callback, |
70 const blink::WebMediaConstraints& constraints, | 70 const blink::WebMediaConstraints& constraints, |
71 const ConstraintsCallback& callback); | 71 const ConstraintsCallback& callback); |
72 void RemoveTrack(MediaStreamVideoTrack* track); | 72 void RemoveTrack(MediaStreamVideoTrack* track); |
73 | 73 |
74 // Called by |track| to notify the source whether it has any paths to a | |
75 // consuming endpoint. | |
76 void UpdateHasConsumers(MediaStreamVideoTrack* track, bool has_consumers); | |
chfremer
2016/09/27 00:54:59
As a reader unfamiliar with this class, I am confu
miu
2016/09/27 23:42:23
Done. Made the SetXXX() methods protected, renamed
| |
77 | |
74 void UpdateCapturingLinkSecure(MediaStreamVideoTrack* track, bool is_secure); | 78 void UpdateCapturingLinkSecure(MediaStreamVideoTrack* track, bool is_secure); |
75 | 79 |
76 // Request underlying source to capture a new frame. | 80 // Request underlying source to capture a new frame. |
77 virtual void RequestRefreshFrame() {} | 81 virtual void RequestRefreshFrame() {} |
78 | 82 |
83 // Notify the underlying source whether there are one or more consumers | |
84 // present. When none are present, the source can stop delivering frames, | |
85 // giving it the option of running in an "idle" state to minimize resource | |
86 // usage. | |
87 virtual void SetHasConsumers(bool has_consumers) {} | |
88 | |
79 // Notify underlying source if the capturing link is secure. | 89 // Notify underlying source if the capturing link is secure. |
80 virtual void SetCapturingLinkSecured(bool is_secure) {} | 90 virtual void SetCapturingLinkSecured(bool is_secure) {} |
81 | 91 |
82 // Returns the task runner where video frames will be delivered on. | 92 // Returns the task runner where video frames will be delivered on. |
83 base::SingleThreadTaskRunner* io_task_runner() const; | 93 base::SingleThreadTaskRunner* io_task_runner() const; |
84 | 94 |
85 const media::VideoCaptureFormat* GetCurrentFormat() const; | 95 const media::VideoCaptureFormat* GetCurrentFormat() const; |
86 | 96 |
87 base::WeakPtr<MediaStreamVideoSource> GetWeakPtr() { | 97 base::WeakPtr<MediaStreamVideoSource> GetWeakPtr() { |
88 return weak_factory_.GetWeakPtr(); | 98 return weak_factory_.GetWeakPtr(); |
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176 std::vector<TrackDescriptor> track_descriptors_; | 186 std::vector<TrackDescriptor> track_descriptors_; |
177 | 187 |
178 media::VideoCaptureFormats supported_formats_; | 188 media::VideoCaptureFormats supported_formats_; |
179 | 189 |
180 // |track_adapter_| delivers video frames to the tracks on the IO-thread. | 190 // |track_adapter_| delivers video frames to the tracks on the IO-thread. |
181 const scoped_refptr<VideoTrackAdapter> track_adapter_; | 191 const scoped_refptr<VideoTrackAdapter> track_adapter_; |
182 | 192 |
183 // Tracks that currently are connected to this source. | 193 // Tracks that currently are connected to this source. |
184 std::vector<MediaStreamVideoTrack*> tracks_; | 194 std::vector<MediaStreamVideoTrack*> tracks_; |
185 | 195 |
196 // Tracks that have no paths to a consuming endpoint, and so do not need | |
197 // frames delivered from the source. | |
198 std::vector<MediaStreamVideoTrack*> suspended_tracks_; | |
199 | |
186 // This is used for tracking if all connected video sinks are secure. | 200 // This is used for tracking if all connected video sinks are secure. |
187 SecureDisplayLinkTracker<MediaStreamVideoTrack> secure_tracker_; | 201 SecureDisplayLinkTracker<MediaStreamVideoTrack> secure_tracker_; |
188 | 202 |
189 // NOTE: Weak pointers must be invalidated before all other member variables. | 203 // NOTE: Weak pointers must be invalidated before all other member variables. |
190 base::WeakPtrFactory<MediaStreamVideoSource> weak_factory_; | 204 base::WeakPtrFactory<MediaStreamVideoSource> weak_factory_; |
191 | 205 |
192 DISALLOW_COPY_AND_ASSIGN(MediaStreamVideoSource); | 206 DISALLOW_COPY_AND_ASSIGN(MediaStreamVideoSource); |
193 }; | 207 }; |
194 | 208 |
195 } // namespace content | 209 } // namespace content |
196 | 210 |
197 #endif // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_SOURCE_H_ | 211 #endif // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_VIDEO_SOURCE_H_ |
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