OLD | NEW |
1 /* | 1 /* |
2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2011 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 // The TimeScheduler class keeps track of periodic events. It is non-drifting | 11 // The TimeScheduler class keeps track of periodic events. It is non-drifting |
12 // and keeps track of any missed periods so that it is possible to catch up. | 12 // and keeps track of any missed periods so that it is possible to catch up. |
13 // (compare to a metronome) | 13 // (compare to a metronome) |
14 | 14 |
15 #ifndef WEBRTC_MODULES_AUDIO_CONFERENCE_MIXER_SOURCE_TIME_SCHEDULER_H_ | 15 #ifndef WEBRTC_MODULES_AUDIO_CONFERENCE_MIXER_SOURCE_TIME_SCHEDULER_H_ |
16 #define WEBRTC_MODULES_AUDIO_CONFERENCE_MIXER_SOURCE_TIME_SCHEDULER_H_ | 16 #define WEBRTC_MODULES_AUDIO_CONFERENCE_MIXER_SOURCE_TIME_SCHEDULER_H_ |
17 | 17 |
18 namespace webrtc { | 18 namespace webrtc { |
19 class CriticalSectionWrapper; | 19 class CriticalSectionWrapper; |
20 class TimeScheduler | 20 class TimeScheduler { |
21 { | 21 public: |
22 public: | 22 TimeScheduler(const int64_t periodicityInMs); |
23 TimeScheduler(const int64_t periodicityInMs); | 23 ~TimeScheduler(); |
24 ~TimeScheduler(); | |
25 | 24 |
26 // Signal that a periodic event has been triggered. | 25 // Signal that a periodic event has been triggered. |
27 int32_t UpdateScheduler(); | 26 int32_t UpdateScheduler(); |
28 | 27 |
29 // Set updateTimeInMs to the amount of time until UpdateScheduler() should | 28 // Set updateTimeInMs to the amount of time until UpdateScheduler() should |
30 // be called. This time will never be negative. | 29 // be called. This time will never be negative. |
31 int32_t TimeToNextUpdate(int64_t& updateTimeInMS) const; | 30 int32_t TimeToNextUpdate(int64_t& updateTimeInMS) const; |
32 | 31 |
33 private: | 32 private: |
34 CriticalSectionWrapper* _crit; | 33 CriticalSectionWrapper* _crit; |
35 | 34 |
36 bool _isStarted; | 35 bool _isStarted; |
37 int64_t _lastPeriodMark; // In ns | 36 int64_t _lastPeriodMark; // In ns |
38 | 37 |
39 int64_t _periodicityInMs; | 38 int64_t _periodicityInMs; |
40 int64_t _periodicityInTicks; | 39 int64_t _periodicityInTicks; |
41 uint32_t _missedPeriods; | 40 uint32_t _missedPeriods; |
42 }; | 41 }; |
43 } // namespace webrtc | 42 } // namespace webrtc |
44 | 43 |
45 #endif // WEBRTC_MODULES_AUDIO_CONFERENCE_MIXER_SOURCE_TIME_SCHEDULER_H_ | 44 #endif // WEBRTC_MODULES_AUDIO_CONFERENCE_MIXER_SOURCE_TIME_SCHEDULER_H_ |
OLD | NEW |