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Adds remote estimate RTCP packet.

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This adds the RemoteEstimate rtcp packet and wires it up to GoogCC where
it's used to improve congestion controller behavior.

The functionality is negotiated using SDP.

It's added with a field trial that allow disabling the functionality in
case there's any issues.

Bug: webrtc:10742
Change-Id: I1ea8e4216a27cd2b00505c99b42d1e38726256c8
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/146602
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28654}
This commit is contained in:
Sebastian Jansson
2019-07-24 11:38:03 +02:00
committed by Commit Bot
parent 1796a820f6
commit e1795f4158
26 changed files with 403 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
modules/rtp_rtcp/include/rtp_rtcp_defines.h
View File

@ -24,6 +24,7 @@
#include "api/rtp_headers.h"
#include "api/transport/network_types.h"
#include "modules/include/module_common_types.h"
#include "modules/rtp_rtcp/source/rtcp_packet/remote_estimate.h"
#include "system_wrappers/include/clock.h"
#define RTCP_CNAME_SIZE 256 // RFC 3550 page 44, including null termination
@ -291,6 +292,11 @@ struct RtpPacketSendInfo {
size_t length = 0;
PacedPacketInfo pacing_info;
};
class NetworkStateEstimateObserver {
public:
virtual void OnRemoteNetworkEstimate(NetworkStateEstimate estimate) = 0;
virtual ~NetworkStateEstimateObserver() = default;
};
class TransportFeedbackObserver {
public:
@ -310,6 +316,8 @@ class RtcpFeedbackSenderInterface {
virtual ~RtcpFeedbackSenderInterface() = default;
virtual uint32_t SSRC() const = 0;
virtual bool SendFeedbackPacket(const rtcp::TransportFeedback& feedback) = 0;
virtual bool SendNetworkStateEstimatePacket(
const rtcp::RemoteEstimate& packet) = 0;
virtual void SetRemb(int64_t bitrate_bps, std::vector<uint32_t> ssrcs) = 0;
virtual void UnsetRemb() = 0;
};