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Side by Side Diff: webrtc/video/stream_synchronization.h

Issue 2452163004: Stop using VoEVideoSync in Call/VideoReceiveStream. (Closed)
Patch Set: comment Created 3 years, 10 months ago
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1 /* 1 /*
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2012 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 #ifndef WEBRTC_VIDEO_STREAM_SYNCHRONIZATION_H_ 11 #ifndef WEBRTC_VIDEO_STREAM_SYNCHRONIZATION_H_
12 #define WEBRTC_VIDEO_STREAM_SYNCHRONIZATION_H_ 12 #define WEBRTC_VIDEO_STREAM_SYNCHRONIZATION_H_
13 13
14 #include <list> 14 #include <list>
15 15
16 #include "webrtc/system_wrappers/include/rtp_to_ntp_estimator.h" 16 #include "webrtc/system_wrappers/include/rtp_to_ntp_estimator.h"
17 #include "webrtc/typedefs.h" 17 #include "webrtc/typedefs.h"
18 18
19 namespace webrtc { 19 namespace webrtc {
20 20
21 class StreamSynchronization { 21 class StreamSynchronization {
22 public: 22 public:
23 struct Measurements { 23 struct Measurements {
24 Measurements() : latest_receive_time_ms(0), latest_timestamp(0) {} 24 Measurements() : latest_receive_time_ms(0), latest_timestamp(0) {}
25 RtpToNtpEstimator rtp_to_ntp; 25 RtpToNtpEstimator rtp_to_ntp;
26 int64_t latest_receive_time_ms; 26 int64_t latest_receive_time_ms;
27 uint32_t latest_timestamp; 27 uint32_t latest_timestamp;
28 }; 28 };
29 29
30 StreamSynchronization(uint32_t video_primary_ssrc, int audio_channel_id); 30 StreamSynchronization(int video_stream_id, int audio_stream_id);
31 31
32 bool ComputeDelays(int relative_delay_ms, 32 bool ComputeDelays(int relative_delay_ms,
33 int current_audio_delay_ms, 33 int current_audio_delay_ms,
34 int* extra_audio_delay_ms, 34 int* extra_audio_delay_ms,
35 int* total_video_delay_target_ms); 35 int* total_video_delay_target_ms);
36 36
37 // On success |relative_delay| contains the number of milliseconds later video 37 // On success |relative_delay| contains the number of milliseconds later video
38 // is rendered relative audio. If audio is played back later than video a 38 // is rendered relative audio. If audio is played back later than video a
39 // |relative_delay| will be negative. 39 // |relative_delay| will be negative.
40 static bool ComputeRelativeDelay(const Measurements& audio_measurement, 40 static bool ComputeRelativeDelay(const Measurements& audio_measurement,
41 const Measurements& video_measurement, 41 const Measurements& video_measurement,
42 int* relative_delay_ms); 42 int* relative_delay_ms);
43 // Set target buffering delay - All audio and video will be delayed by at 43 // Set target buffering delay - All audio and video will be delayed by at
44 // least target_delay_ms. 44 // least target_delay_ms.
45 void SetTargetBufferingDelay(int target_delay_ms); 45 void SetTargetBufferingDelay(int target_delay_ms);
46 46
47 private: 47 private:
48 struct SynchronizationDelays { 48 struct SynchronizationDelays {
49 int extra_video_delay_ms = 0; 49 int extra_video_delay_ms = 0;
50 int last_video_delay_ms = 0; 50 int last_video_delay_ms = 0;
51 int extra_audio_delay_ms = 0; 51 int extra_audio_delay_ms = 0;
52 int last_audio_delay_ms = 0; 52 int last_audio_delay_ms = 0;
53 }; 53 };
54 54
55 SynchronizationDelays channel_delay_; 55 SynchronizationDelays channel_delay_;
56 const uint32_t video_primary_ssrc_; 56 const int video_stream_id_;
57 const int audio_channel_id_; 57 const int audio_stream_id_;
58 int base_target_delay_ms_; 58 int base_target_delay_ms_;
59 int avg_diff_ms_; 59 int avg_diff_ms_;
60 }; 60 };
61 } // namespace webrtc 61 } // namespace webrtc
62 62
63 #endif // WEBRTC_VIDEO_STREAM_SYNCHRONIZATION_H_ 63 #endif // WEBRTC_VIDEO_STREAM_SYNCHRONIZATION_H_
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