83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
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/*
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* Copyright 2005 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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// Class to collect statistics from a media channel
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#ifndef WEBRTC_PC_MEDIAMONITOR_H_
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#define WEBRTC_PC_MEDIAMONITOR_H_
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#include "webrtc/base/criticalsection.h"
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#include "webrtc/base/sigslot.h"
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#include "webrtc/base/thread.h"
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#include "webrtc/base/thread_annotations.h"
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#include "webrtc/media/base/mediachannel.h"
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namespace cricket {
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// The base MediaMonitor class, independent of voice and video.
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class MediaMonitor : public rtc::MessageHandler,
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public sigslot::has_slots<> {
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public:
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MediaMonitor(rtc::Thread* worker_thread,
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rtc::Thread* monitor_thread);
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~MediaMonitor();
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void Start(uint32_t milliseconds);
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void Stop();
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protected:
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void OnMessage(rtc::Message *message);
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void PollMediaChannel();
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virtual void GetStats() = 0;
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virtual void Update() = 0;
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rtc::CriticalSection crit_;
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rtc::Thread* worker_thread_;
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rtc::Thread* monitor_thread_;
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bool monitoring_;
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uint32_t rate_;
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};
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// Templatized MediaMonitor that can deal with different kinds of media.
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template<class MC, class MI>
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class MediaMonitorT : public MediaMonitor {
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public:
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MediaMonitorT(MC* media_channel, rtc::Thread* worker_thread,
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rtc::Thread* monitor_thread)
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: MediaMonitor(worker_thread, monitor_thread),
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media_channel_(media_channel) {}
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sigslot::signal2<MC*, const MI&> SignalUpdate;
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protected:
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// These routines assume the crit_ lock is held by the calling thread.
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virtual void GetStats() {
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media_info_.Clear();
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media_channel_->GetStats(&media_info_);
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}
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virtual void Update() EXCLUSIVE_LOCKS_REQUIRED(crit_) {
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MI stats(media_info_);
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crit_.Leave();
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SignalUpdate(media_channel_, stats);
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crit_.Enter();
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}
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private:
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MC* media_channel_;
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MI media_info_;
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};
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typedef MediaMonitorT<VoiceMediaChannel, VoiceMediaInfo> VoiceMediaMonitor;
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typedef MediaMonitorT<VideoMediaChannel, VideoMediaInfo> VideoMediaMonitor;
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typedef MediaMonitorT<DataMediaChannel, DataMediaInfo> DataMediaMonitor;
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} // namespace cricket
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#endif // WEBRTC_PC_MEDIAMONITOR_H_
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