webrtc/video/rtp_streams_synchronizer.h
Mirko Bonadei 92ea95e34a Fixing WebRTC after moving from src/webrtc to src/
In https://webrtc-review.googlesource.com/c/src/+/1560 we moved WebRTC
from src/webrtc to src/ (in order to preserve an healthy git history).
This CL takes care of fixing header guards, #include paths, etc...

NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
TBR=tommi@webrtc.org


Bug: chromium:611808
Change-Id: Iea91618212bee0af16aa3f05071eab8f93706578
Reviewed-on: https://webrtc-review.googlesource.com/1561
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Henrik Kjellander <kjellander@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#19846}
2017-09-15 05:02:56 +00:00

66 lines
2.1 KiB
C++

/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
// RtpStreamsSynchronizer is responsible for synchronization audio and video for
// a given voice engine channel and video receive stream.
#ifndef VIDEO_RTP_STREAMS_SYNCHRONIZER_H_
#define VIDEO_RTP_STREAMS_SYNCHRONIZER_H_
#include <memory>
#include "modules/include/module.h"
#include "rtc_base/criticalsection.h"
#include "rtc_base/thread_checker.h"
#include "video/stream_synchronization.h"
namespace webrtc {
class Syncable;
namespace vcm {
class VideoReceiver;
} // namespace vcm
class RtpStreamsSynchronizer : public Module {
public:
explicit RtpStreamsSynchronizer(Syncable* syncable_video);
void ConfigureSync(Syncable* syncable_audio);
// Implements Module.
int64_t TimeUntilNextProcess() override;
void Process() override;
// Gets the sync offset between the current played out audio frame and the
// video |frame|. Returns true on success, false otherwise.
// The estimated frequency is the frequency used in the RTP to NTP timestamp
// conversion.
bool GetStreamSyncOffsetInMs(uint32_t timestamp,
int64_t render_time_ms,
int64_t* stream_offset_ms,
double* estimated_freq_khz) const;
private:
Syncable* syncable_video_;
rtc::CriticalSection crit_;
Syncable* syncable_audio_ RTC_GUARDED_BY(crit_);
std::unique_ptr<StreamSynchronization> sync_ RTC_GUARDED_BY(crit_);
StreamSynchronization::Measurements audio_measurement_ RTC_GUARDED_BY(crit_);
StreamSynchronization::Measurements video_measurement_ RTC_GUARDED_BY(crit_);
rtc::ThreadChecker process_thread_checker_;
int64_t last_sync_time_ RTC_ACCESS_ON(&process_thread_checker_);
};
} // namespace webrtc
#endif // VIDEO_RTP_STREAMS_SYNCHRONIZER_H_