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1 /* | 1 /* |
2 * Copyright 2015 The WebRTC project authors. All Rights Reserved. | 2 * Copyright 2015 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 4 * Use of this source code is governed by a BSD-style license |
5 * that can be found in the LICENSE file in the root of the source | 5 * that can be found in the LICENSE file in the root of the source |
6 * tree. An additional intellectual property rights grant can be found | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 // This file contains classes that implement RtpSenderInterface. | 11 // This file contains classes that implement RtpSenderInterface. |
12 // An RtpSender associates a MediaStreamTrackInterface with an underlying | 12 // An RtpSender associates a MediaStreamTrackInterface with an underlying |
13 // transport (provided by AudioProviderInterface/VideoProviderInterface) | 13 // transport (provided by AudioProviderInterface/VideoProviderInterface) |
14 | 14 |
15 #ifndef WEBRTC_API_RTPSENDER_H_ | 15 #ifndef WEBRTC_API_RTPSENDER_H_ |
16 #define WEBRTC_API_RTPSENDER_H_ | 16 #define WEBRTC_API_RTPSENDER_H_ |
17 | 17 |
18 #include <memory> | 18 #include <memory> |
19 #include <string> | 19 #include <string> |
20 | 20 |
21 #include "webrtc/api/mediastreaminterface.h" | 21 #include "webrtc/api/mediastreamprovider.h" |
22 #include "webrtc/api/rtpsenderinterface.h" | 22 #include "webrtc/api/rtpsenderinterface.h" |
23 #include "webrtc/api/statscollector.h" | 23 #include "webrtc/api/statscollector.h" |
24 #include "webrtc/base/basictypes.h" | 24 #include "webrtc/base/basictypes.h" |
25 #include "webrtc/base/criticalsection.h" | 25 #include "webrtc/base/criticalsection.h" |
26 #include "webrtc/media/base/audiosource.h" | 26 #include "webrtc/media/base/audiosource.h" |
27 #include "webrtc/pc/channel.h" | |
28 | 27 |
29 namespace webrtc { | 28 namespace webrtc { |
30 | 29 |
31 // Internal interface used by PeerConnection. | 30 // Internal interface used by PeerConnection. |
32 class RtpSenderInternal : public RtpSenderInterface { | 31 class RtpSenderInternal : public RtpSenderInterface { |
33 public: | 32 public: |
34 // Used to set the SSRC of the sender, once a local description has been set. | 33 // Used to set the SSRC of the sender, once a local description has been set. |
35 // If |ssrc| is 0, this indiates that the sender should disconnect from the | 34 // If |ssrc| is 0, this indiates that the sender should disconnect from the |
36 // underlying transport (this occurs if the sender isn't seen in a local | 35 // underlying transport (this occurs if the sender isn't seen in a local |
37 // description). | 36 // description). |
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66 cricket::AudioSource::Sink* sink_; | 65 cricket::AudioSource::Sink* sink_; |
67 // Critical section protecting |sink_|. | 66 // Critical section protecting |sink_|. |
68 rtc::CriticalSection lock_; | 67 rtc::CriticalSection lock_; |
69 }; | 68 }; |
70 | 69 |
71 class AudioRtpSender : public ObserverInterface, | 70 class AudioRtpSender : public ObserverInterface, |
72 public rtc::RefCountedObject<RtpSenderInternal> { | 71 public rtc::RefCountedObject<RtpSenderInternal> { |
73 public: | 72 public: |
74 // StatsCollector provided so that Add/RemoveLocalAudioTrack can be called | 73 // StatsCollector provided so that Add/RemoveLocalAudioTrack can be called |
75 // at the appropriate times. | 74 // at the appropriate times. |
76 // |channel| can be null if one does not exist yet. | |
77 AudioRtpSender(AudioTrackInterface* track, | 75 AudioRtpSender(AudioTrackInterface* track, |
78 const std::string& stream_id, | 76 const std::string& stream_id, |
79 cricket::VoiceChannel* channel, | 77 AudioProviderInterface* provider, |
80 StatsCollector* stats); | 78 StatsCollector* stats); |
81 | 79 |
82 // Randomly generates stream_id. | 80 // Randomly generates stream_id. |
83 // |channel| can be null if one does not exist yet. | |
84 AudioRtpSender(AudioTrackInterface* track, | 81 AudioRtpSender(AudioTrackInterface* track, |
85 cricket::VoiceChannel* channel, | 82 AudioProviderInterface* provider, |
86 StatsCollector* stats); | 83 StatsCollector* stats); |
87 | 84 |
88 // Randomly generates id and stream_id. | 85 // Randomly generates id and stream_id. |
89 // |channel| can be null if one does not exist yet. | 86 AudioRtpSender(AudioProviderInterface* provider, StatsCollector* stats); |
90 AudioRtpSender(cricket::VoiceChannel* channel, StatsCollector* stats); | |
91 | 87 |
92 virtual ~AudioRtpSender(); | 88 virtual ~AudioRtpSender(); |
93 | 89 |
94 // ObserverInterface implementation | 90 // ObserverInterface implementation |
95 void OnChanged() override; | 91 void OnChanged() override; |
96 | 92 |
97 // RtpSenderInterface implementation | 93 // RtpSenderInterface implementation |
98 bool SetTrack(MediaStreamTrackInterface* track) override; | 94 bool SetTrack(MediaStreamTrackInterface* track) override; |
99 rtc::scoped_refptr<MediaStreamTrackInterface> track() const override { | 95 rtc::scoped_refptr<MediaStreamTrackInterface> track() const override { |
100 return track_; | 96 return track_; |
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119 // RtpSenderInternal implementation. | 115 // RtpSenderInternal implementation. |
120 void SetSsrc(uint32_t ssrc) override; | 116 void SetSsrc(uint32_t ssrc) override; |
121 | 117 |
122 void set_stream_id(const std::string& stream_id) override { | 118 void set_stream_id(const std::string& stream_id) override { |
123 stream_id_ = stream_id; | 119 stream_id_ = stream_id; |
124 } | 120 } |
125 std::string stream_id() const override { return stream_id_; } | 121 std::string stream_id() const override { return stream_id_; } |
126 | 122 |
127 void Stop() override; | 123 void Stop() override; |
128 | 124 |
129 // Does not take ownership. | |
130 // Should call SetChannel(nullptr) before |channel| is destroyed. | |
131 void SetChannel(cricket::VoiceChannel* channel) { channel_ = channel; } | |
132 | |
133 private: | 125 private: |
134 // TODO(nisse): Since SSRC == 0 is technically valid, figure out | 126 // TODO(nisse): Since SSRC == 0 is technically valid, figure out |
135 // some other way to test if we have a valid SSRC. | 127 // some other way to test if we have a valid SSRC. |
136 bool can_send_track() const { return track_ && ssrc_; } | 128 bool can_send_track() const { return track_ && ssrc_; } |
137 // Helper function to construct options for | 129 // Helper function to construct options for |
138 // AudioProviderInterface::SetAudioSend. | 130 // AudioProviderInterface::SetAudioSend. |
139 void SetAudioSend(); | 131 void SetAudioSend(); |
140 // Helper function to call SetAudioSend with "stop sending" parameters. | |
141 void ClearAudioSend(); | |
142 | 132 |
143 std::string id_; | 133 std::string id_; |
144 std::string stream_id_; | 134 std::string stream_id_; |
145 cricket::VoiceChannel* channel_ = nullptr; | 135 AudioProviderInterface* provider_; |
146 StatsCollector* stats_; | 136 StatsCollector* stats_; |
147 rtc::scoped_refptr<AudioTrackInterface> track_; | 137 rtc::scoped_refptr<AudioTrackInterface> track_; |
148 uint32_t ssrc_ = 0; | 138 uint32_t ssrc_ = 0; |
149 bool cached_track_enabled_ = false; | 139 bool cached_track_enabled_ = false; |
150 bool stopped_ = false; | 140 bool stopped_ = false; |
151 | 141 |
152 // Used to pass the data callback from the |track_| to the other end of | 142 // Used to pass the data callback from the |track_| to the other end of |
153 // cricket::AudioSource. | 143 // cricket::AudioSource. |
154 std::unique_ptr<LocalAudioSinkAdapter> sink_adapter_; | 144 std::unique_ptr<LocalAudioSinkAdapter> sink_adapter_; |
155 }; | 145 }; |
156 | 146 |
157 class VideoRtpSender : public ObserverInterface, | 147 class VideoRtpSender : public ObserverInterface, |
158 public rtc::RefCountedObject<RtpSenderInternal> { | 148 public rtc::RefCountedObject<RtpSenderInternal> { |
159 public: | 149 public: |
160 // |channel| can be null if one does not exist yet. | |
161 VideoRtpSender(VideoTrackInterface* track, | 150 VideoRtpSender(VideoTrackInterface* track, |
162 const std::string& stream_id, | 151 const std::string& stream_id, |
163 cricket::VideoChannel* channel); | 152 VideoProviderInterface* provider); |
164 | 153 |
165 // Randomly generates stream_id. | 154 // Randomly generates stream_id. |
166 // |channel| can be null if one does not exist yet. | 155 VideoRtpSender(VideoTrackInterface* track, VideoProviderInterface* provider); |
167 VideoRtpSender(VideoTrackInterface* track, cricket::VideoChannel* channel); | |
168 | 156 |
169 // Randomly generates id and stream_id. | 157 // Randomly generates id and stream_id. |
170 // |channel| can be null if one does not exist yet. | 158 explicit VideoRtpSender(VideoProviderInterface* provider); |
171 explicit VideoRtpSender(cricket::VideoChannel* channel); | |
172 | 159 |
173 virtual ~VideoRtpSender(); | 160 virtual ~VideoRtpSender(); |
174 | 161 |
175 // ObserverInterface implementation | 162 // ObserverInterface implementation |
176 void OnChanged() override; | 163 void OnChanged() override; |
177 | 164 |
178 // RtpSenderInterface implementation | 165 // RtpSenderInterface implementation |
179 bool SetTrack(MediaStreamTrackInterface* track) override; | 166 bool SetTrack(MediaStreamTrackInterface* track) override; |
180 rtc::scoped_refptr<MediaStreamTrackInterface> track() const override { | 167 rtc::scoped_refptr<MediaStreamTrackInterface> track() const override { |
181 return track_; | 168 return track_; |
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200 // RtpSenderInternal implementation. | 187 // RtpSenderInternal implementation. |
201 void SetSsrc(uint32_t ssrc) override; | 188 void SetSsrc(uint32_t ssrc) override; |
202 | 189 |
203 void set_stream_id(const std::string& stream_id) override { | 190 void set_stream_id(const std::string& stream_id) override { |
204 stream_id_ = stream_id; | 191 stream_id_ = stream_id; |
205 } | 192 } |
206 std::string stream_id() const override { return stream_id_; } | 193 std::string stream_id() const override { return stream_id_; } |
207 | 194 |
208 void Stop() override; | 195 void Stop() override; |
209 | 196 |
210 // Does not take ownership. | |
211 // Should call SetChannel(nullptr) before |channel| is destroyed. | |
212 void SetChannel(cricket::VideoChannel* channel) { channel_ = channel; } | |
213 | |
214 private: | 197 private: |
215 bool can_send_track() const { return track_ && ssrc_; } | 198 bool can_send_track() const { return track_ && ssrc_; } |
216 // Helper function to construct options for | 199 // Helper function to construct options for |
217 // VideoProviderInterface::SetVideoSend. | 200 // VideoProviderInterface::SetVideoSend. |
218 void SetVideoSend(); | 201 void SetVideoSend(); |
219 // Helper function to call SetVideoSend with "stop sending" parameters. | 202 // Helper function to call SetVideoSend with "stop sending" parameters. |
220 void ClearVideoSend(); | 203 void ClearVideoSend(); |
221 | 204 |
222 std::string id_; | 205 std::string id_; |
223 std::string stream_id_; | 206 std::string stream_id_; |
224 cricket::VideoChannel* channel_ = nullptr; | 207 VideoProviderInterface* provider_; |
225 rtc::scoped_refptr<VideoTrackInterface> track_; | 208 rtc::scoped_refptr<VideoTrackInterface> track_; |
226 uint32_t ssrc_ = 0; | 209 uint32_t ssrc_ = 0; |
227 bool cached_track_enabled_ = false; | 210 bool cached_track_enabled_ = false; |
228 bool stopped_ = false; | 211 bool stopped_ = false; |
229 }; | 212 }; |
230 | 213 |
231 } // namespace webrtc | 214 } // namespace webrtc |
232 | 215 |
233 #endif // WEBRTC_API_RTPSENDER_H_ | 216 #endif // WEBRTC_API_RTPSENDER_H_ |
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