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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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