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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_SOURCE_H_ | 5 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_H_ |
6 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_H_ | 6 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_H_ |
7 | 7 |
8 #include "base/callback.h" | 8 #include "base/callback.h" |
9 #include "base/compiler_specific.h" | 9 #include "base/compiler_specific.h" |
10 #include "base/logging.h" | 10 #include "base/logging.h" |
11 #include "base/macros.h" | 11 #include "base/macros.h" |
| 12 #include "base/threading/thread_checker.h" |
12 #include "content/common/content_export.h" | 13 #include "content/common/content_export.h" |
13 #include "content/common/media/media_stream_options.h" | 14 #include "content/common/media/media_stream_options.h" |
14 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h" | 15 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h" |
15 | 16 |
16 namespace blink { | 17 namespace blink { |
17 class WebMediaStreamTrack; | 18 class WebMediaStreamTrack; |
18 } // namespace blink | 19 } // namespace blink |
19 | 20 |
20 namespace content { | 21 namespace content { |
21 | 22 |
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36 | 37 |
37 MediaStreamSource(); | 38 MediaStreamSource(); |
38 ~MediaStreamSource() override; | 39 ~MediaStreamSource() override; |
39 | 40 |
40 // Returns device information about a source that has been created by a | 41 // Returns device information about a source that has been created by a |
41 // JavaScript call to GetUserMedia, e.g., a camera or microphone. | 42 // JavaScript call to GetUserMedia, e.g., a camera or microphone. |
42 const StreamDeviceInfo& device_info() const { | 43 const StreamDeviceInfo& device_info() const { |
43 return device_info_; | 44 return device_info_; |
44 } | 45 } |
45 | 46 |
46 // Stops the source (by calling DoStopSource()). This sets the | 47 // Stops the source (by calling DoStopSource()). This runs the |
47 // WebMediaStreamSource::readyState to ended, triggers the |stop_callback_| | 48 // |stop_callback_| (if set), and then sets the |
48 // if set. All pointers to this object are invalid after calling this. | 49 // WebMediaStreamSource::readyState to ended. |
49 void StopSource(); | 50 void StopSource(); |
50 | 51 |
51 void ResetSourceStoppedCallback() { | 52 // Sets device information about a source that has been created by a |
52 DCHECK(!stop_callback_.is_null()); | 53 // JavaScript call to GetUserMedia. F.E a camera or microphone. |
53 stop_callback_.Reset(); | 54 void SetDeviceInfo(const StreamDeviceInfo& device_info); |
54 } | 55 |
| 56 // Sets a callback that will be triggered when StopSource is called. |
| 57 void SetStopCallback(const SourceStoppedCallback& stop_callback); |
| 58 |
| 59 // Clears the previously-set SourceStoppedCallback so that it will not be run |
| 60 // in the future. |
| 61 void ResetSourceStoppedCallback(); |
55 | 62 |
56 protected: | 63 protected: |
57 // Called when StopSource is called. It allows derived classes to implement | 64 // Called when StopSource is called. It allows derived classes to implement |
58 // its own Stop method. | 65 // its own Stop method. |
59 virtual void DoStopSource() = 0; | 66 virtual void DoStopSource() = 0; |
60 | 67 |
61 // Sets device information about a source that has been created by a | 68 private: |
62 // JavaScript call to GetUserMedia. F.E a camera or microphone. | 69 // Called by both StopSource() and the destructor to ensure the |
63 void SetDeviceInfo(const StreamDeviceInfo& device_info) { | 70 // |stop_callback_| has been run and the blink::WebMediaStreamSource's ready |
64 device_info_ = device_info; | 71 // state has been set to "ended." |
65 } | 72 void RunStopCallbackAndEndStream(); |
66 | 73 |
67 // Sets a callback that will be triggered when StopSource is called. | |
68 void SetStopCallback(const SourceStoppedCallback& stop_callback) { | |
69 DCHECK(stop_callback_.is_null()); | |
70 stop_callback_ = stop_callback; | |
71 } | |
72 | |
73 private: | |
74 StreamDeviceInfo device_info_; | 74 StreamDeviceInfo device_info_; |
75 SourceStoppedCallback stop_callback_; | 75 SourceStoppedCallback stop_callback_; |
76 | 76 |
| 77 // In debug builds, check that all methods are being called on the main |
| 78 // thread. |
| 79 base::ThreadChecker thread_checker_; |
| 80 |
77 DISALLOW_COPY_AND_ASSIGN(MediaStreamSource); | 81 DISALLOW_COPY_AND_ASSIGN(MediaStreamSource); |
78 }; | 82 }; |
79 | 83 |
80 } // namespace content | 84 } // namespace content |
81 | 85 |
82 #endif // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_H_ | 86 #endif // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_H_ |
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