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1 /* | |
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | |
3 * | |
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 | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 // RtpStreamsSynchronizer is responsible for synchronization audio and video for | |
12 // a given voice engine channel and video receive stream. | |
13 | |
14 #ifndef WEBRTC_VIDEO_RTP_STREAMS_SYNCHRONIZER_H_ | |
15 #define WEBRTC_VIDEO_RTP_STREAMS_SYNCHRONIZER_H_ | |
16 | |
17 #include <memory> | |
18 | |
19 #include "webrtc/base/criticalsection.h" | |
20 #include "webrtc/base/thread_checker.h" | |
21 #include "webrtc/modules/include/module.h" | |
22 #include "webrtc/video/rtp_stream_receiver.h" | |
23 #include "webrtc/video/stream_synchronization.h" | |
24 | |
25 namespace webrtc { | |
26 | |
27 class Clock; | |
28 class VideoFrame; | |
29 class VoEVideoSync; | |
30 | |
31 namespace vcm { | |
32 class VideoReceiver; | |
33 } // namespace vcm | |
34 | |
35 class RtpStreamsSynchronizer : public Module { | |
mflodman
2016/08/04 08:24:05
This is not really a new file, rather vie_sync_mod
| |
36 public: | |
37 RtpStreamsSynchronizer(vcm::VideoReceiver* vcm, | |
38 RtpStreamReceiver* rtp_stream_receiver); | |
39 | |
40 void ConfigureSync(int voe_channel_id, | |
41 VoEVideoSync* voe_sync_interface); | |
42 | |
43 // Implements Module. | |
44 int64_t TimeUntilNextProcess() override; | |
45 void Process() override; | |
46 | |
47 // Gets the sync offset between the current played out audio frame and the | |
48 // video |frame|. Returns true on success, false otherwise. | |
49 bool GetStreamSyncOffsetInMs(const VideoFrame& frame, | |
50 int64_t* stream_offset_ms) const; | |
51 | |
52 private: | |
53 Clock* const clock_; | |
54 vcm::VideoReceiver* const video_receiver_; | |
55 RtpReceiver* const video_rtp_receiver_; | |
56 RtpRtcp* const video_rtp_rtcp_; | |
57 | |
58 rtc::CriticalSection crit_; | |
59 int voe_channel_id_ GUARDED_BY(crit_); | |
60 VoEVideoSync* voe_sync_interface_ GUARDED_BY(crit_); | |
61 RtpReceiver* audio_rtp_receiver_ GUARDED_BY(crit_); | |
62 RtpRtcp* audio_rtp_rtcp_ GUARDED_BY(crit_); | |
63 std::unique_ptr<StreamSynchronization> sync_ GUARDED_BY(crit_); | |
64 StreamSynchronization::Measurements audio_measurement_ GUARDED_BY(crit_); | |
65 StreamSynchronization::Measurements video_measurement_ GUARDED_BY(crit_); | |
66 | |
67 rtc::ThreadChecker process_thread_checker_; | |
68 int64_t last_sync_time_ ACCESS_ON(&process_thread_checker_); | |
69 }; | |
70 | |
71 } // namespace webrtc | |
72 | |
73 #endif // WEBRTC_VIDEO_RTP_STREAMS_SYNCHRONIZER_H_ | |
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