henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 1 | /* |
| 2 | * libjingle |
| 3 | * Copyright 2005 Google Inc. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions are met: |
| 7 | * |
| 8 | * 1. Redistributions of source code must retain the above copyright notice, |
| 9 | * this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| 11 | * this list of conditions and the following disclaimer in the documentation |
| 12 | * and/or other materials provided with the distribution. |
| 13 | * 3. The name of the author may not be used to endorse or promote products |
| 14 | * derived from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
| 19 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 20 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; |
| 22 | * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 23 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR |
| 24 | * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| 25 | * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 | */ |
| 27 | |
| 28 | // Class to collect statistics from a media channel |
| 29 | |
| 30 | #ifndef TALK_SESSION_MEDIA_MEDIAMONITOR_H_ |
| 31 | #define TALK_SESSION_MEDIA_MEDIAMONITOR_H_ |
| 32 | |
buildbot@webrtc.org | d4e598d | 2014-07-29 17:36:52 +0000 | [diff] [blame^] | 33 | #include "webrtc/base/criticalsection.h" |
| 34 | #include "webrtc/base/sigslot.h" |
| 35 | #include "webrtc/base/thread.h" |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 36 | #include "talk/media/base/mediachannel.h" |
| 37 | |
| 38 | namespace cricket { |
| 39 | |
| 40 | // The base MediaMonitor class, independent of voice and video. |
buildbot@webrtc.org | d4e598d | 2014-07-29 17:36:52 +0000 | [diff] [blame^] | 41 | class MediaMonitor : public rtc::MessageHandler, |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 42 | public sigslot::has_slots<> { |
| 43 | public: |
buildbot@webrtc.org | d4e598d | 2014-07-29 17:36:52 +0000 | [diff] [blame^] | 44 | MediaMonitor(rtc::Thread* worker_thread, |
| 45 | rtc::Thread* monitor_thread); |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 46 | ~MediaMonitor(); |
| 47 | |
| 48 | void Start(uint32 milliseconds); |
| 49 | void Stop(); |
| 50 | |
| 51 | protected: |
buildbot@webrtc.org | d4e598d | 2014-07-29 17:36:52 +0000 | [diff] [blame^] | 52 | void OnMessage(rtc::Message *message); |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 53 | void PollMediaChannel(); |
| 54 | virtual void GetStats() = 0; |
| 55 | virtual void Update() = 0; |
| 56 | |
buildbot@webrtc.org | d4e598d | 2014-07-29 17:36:52 +0000 | [diff] [blame^] | 57 | rtc::CriticalSection crit_; |
| 58 | rtc::Thread* worker_thread_; |
| 59 | rtc::Thread* monitor_thread_; |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 60 | bool monitoring_; |
| 61 | uint32 rate_; |
| 62 | }; |
| 63 | |
| 64 | // Templatized MediaMonitor that can deal with different kinds of media. |
| 65 | template<class MC, class MI> |
| 66 | class MediaMonitorT : public MediaMonitor { |
| 67 | public: |
buildbot@webrtc.org | d4e598d | 2014-07-29 17:36:52 +0000 | [diff] [blame^] | 68 | MediaMonitorT(MC* media_channel, rtc::Thread* worker_thread, |
| 69 | rtc::Thread* monitor_thread) |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 70 | : MediaMonitor(worker_thread, monitor_thread), |
| 71 | media_channel_(media_channel) {} |
| 72 | sigslot::signal2<MC*, const MI&> SignalUpdate; |
| 73 | |
| 74 | protected: |
| 75 | // These routines assume the crit_ lock is held by the calling thread. |
| 76 | virtual void GetStats() { |
| 77 | media_info_.Clear(); |
| 78 | media_channel_->GetStats(&media_info_); |
| 79 | } |
wjia@webrtc.org | dd82fa7 | 2014-02-10 23:20:15 +0000 | [diff] [blame] | 80 | virtual void Update() { |
henrike@webrtc.org | 28e2075 | 2013-07-10 00:45:36 +0000 | [diff] [blame] | 81 | MI stats(media_info_); |
| 82 | crit_.Leave(); |
| 83 | SignalUpdate(media_channel_, stats); |
| 84 | crit_.Enter(); |
| 85 | } |
| 86 | |
| 87 | private: |
| 88 | MC* media_channel_; |
| 89 | MI media_info_; |
| 90 | }; |
| 91 | |
| 92 | typedef MediaMonitorT<VoiceMediaChannel, VoiceMediaInfo> VoiceMediaMonitor; |
| 93 | typedef MediaMonitorT<VideoMediaChannel, VideoMediaInfo> VideoMediaMonitor; |
| 94 | typedef MediaMonitorT<DataMediaChannel, DataMediaInfo> DataMediaMonitor; |
| 95 | |
| 96 | } // namespace cricket |
| 97 | |
| 98 | #endif // TALK_SESSION_MEDIA_MEDIAMONITOR_H_ |