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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 // ViESyncModule is responsible for synchronization audio and video for a given | |
12 // VoE and ViE channel couple. | |
13 | |
14 #ifndef WEBRTC_VIDEO_VIE_SYNC_MODULE_H_ | |
15 #define WEBRTC_VIDEO_VIE_SYNC_MODULE_H_ | |
16 | |
17 #include <memory> | |
18 | |
19 #include "webrtc/base/criticalsection.h" | |
20 #include "webrtc/modules/include/module.h" | |
21 #include "webrtc/video/stream_synchronization.h" | |
22 #include "webrtc/voice_engine/include/voe_video_sync.h" | |
23 | |
24 namespace webrtc { | |
25 | |
26 class Clock; | |
27 class RtpRtcp; | |
28 class VideoFrame; | |
29 class ViEChannel; | |
30 class VoEVideoSync; | |
31 | |
32 namespace vcm { | |
33 class VideoReceiver; | |
34 } // namespace vcm | |
35 | |
36 class ViESyncModule : public Module { | |
37 public: | |
38 explicit ViESyncModule(vcm::VideoReceiver* vcm); | |
39 ~ViESyncModule(); | |
40 | |
41 void ConfigureSync(int voe_channel_id, | |
42 VoEVideoSync* voe_sync_interface, | |
43 RtpRtcp* video_rtcp_module, | |
44 RtpReceiver* rtp_receiver); | |
45 | |
46 // Implements Module. | |
47 int64_t TimeUntilNextProcess() override; | |
48 void Process() override; | |
49 | |
50 // Gets the sync offset between the current played out audio frame and the | |
51 // video |frame|. Returns true on success, false otherwise. | |
52 bool GetStreamSyncOffsetInMs(const VideoFrame& frame, | |
53 int64_t* stream_offset_ms) const; | |
54 | |
55 private: | |
56 rtc::CriticalSection data_cs_; | |
57 vcm::VideoReceiver* const video_receiver_; | |
58 Clock* const clock_; | |
59 RtpReceiver* rtp_receiver_; | |
60 RtpRtcp* video_rtp_rtcp_; | |
61 int voe_channel_id_; | |
62 VoEVideoSync* voe_sync_interface_; | |
63 int64_t last_sync_time_; | |
64 std::unique_ptr<StreamSynchronization> sync_; | |
65 StreamSynchronization::Measurements audio_measurement_; | |
66 StreamSynchronization::Measurements video_measurement_; | |
67 }; | |
68 | |
69 } // namespace webrtc | |
70 | |
71 #endif // WEBRTC_VIDEO_VIE_SYNC_MODULE_H_ | |
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