webrtc_m130/webrtc/video/stream_synchronization.h
Peter Boström 7623ce4aeb Reland of Merge webrtc/video_engine/ into webrtc/video/ (patchset #2 id:300001 of https://codereview.webrtc.org/1507903005/ )
Reason for revert:
Bot breakage caused by TickTime::UseFakeClock has been removed.

Original issue's description:
> Revert of Merge webrtc/video_engine/ into webrtc/video/ (patchset #2 id:20001 of https://codereview.webrtc.org/1506773002/ )
>
> Reason for revert:
> Breaks Dr Memory Light https://build.chromium.org/p/client.webrtc/builders/Win%20DrMemory%20Light/builds/4643 and all the Android Tests bots.
>
> Original issue's description:
> > Merge webrtc/video_engine/ into webrtc/video/
> >
> > BUG=webrtc:1695
> > R=mflodman@webrtc.org
> >
> > Committed: https://crrev.com/03ef053202bc5d5ab43460eebf5403232f157646
> > Cr-Commit-Position: refs/heads/master@{#10926}
>
> TBR=mflodman@webrtc.org,pbos@webrtc.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=webrtc:1695
>
> Committed: https://crrev.com/8237abf563bf4782ee104408b53cc8e55ce44518
> Cr-Commit-Position: refs/heads/master@{#10937}

BUG=webrtc:1695
TBR=mflodman@webrtc.org,kjellander@webrtc.org
NOPRESUBMIT=true

Review URL: https://codereview.webrtc.org/1510183002 .

Cr-Commit-Position: refs/heads/master@{#10948}
2015-12-09 11:13:40 +00:00

60 lines
1.9 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.
*/
#ifndef WEBRTC_VIDEO_STREAM_SYNCHRONIZATION_H_
#define WEBRTC_VIDEO_STREAM_SYNCHRONIZATION_H_
#include <list>
#include "webrtc/system_wrappers/include/rtp_to_ntp.h"
#include "webrtc/typedefs.h"
namespace webrtc {
struct ViESyncDelay;
class StreamSynchronization {
public:
struct Measurements {
Measurements() : rtcp(), latest_receive_time_ms(0), latest_timestamp(0) {}
RtcpList rtcp;
int64_t latest_receive_time_ms;
uint32_t latest_timestamp;
};
StreamSynchronization(uint32_t video_primary_ssrc, int audio_channel_id);
~StreamSynchronization();
bool ComputeDelays(int relative_delay_ms,
int current_audio_delay_ms,
int* extra_audio_delay_ms,
int* total_video_delay_target_ms);
// On success |relative_delay| contains the number of milliseconds later video
// is rendered relative audio. If audio is played back later than video a
// |relative_delay| will be negative.
static bool ComputeRelativeDelay(const Measurements& audio_measurement,
const Measurements& video_measurement,
int* relative_delay_ms);
// Set target buffering delay - All audio and video will be delayed by at
// least target_delay_ms.
void SetTargetBufferingDelay(int target_delay_ms);
private:
ViESyncDelay* channel_delay_;
const uint32_t video_primary_ssrc_;
const int audio_channel_id_;
int base_target_delay_ms_;
int avg_diff_ms_;
};
} // namespace webrtc
#endif // WEBRTC_VIDEO_STREAM_SYNCHRONIZATION_H_