blob: 7f4f5750d298e79240538c224cfdb2dc620b65f0 [file] [log] [blame]
* Copyright (c) 2019 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.
#include <map>
#include <utility>
#include <vector>
#include "api/sequence_checker.h"
#include "modules/include/module_common_types_public.h"
#include "modules/rtp_rtcp/include/rtp_rtcp_defines.h"
#include "rtc_base/system/no_unique_address.h"
namespace webrtc {
// Implementation of StreamFeedbackProvider that provides a way for
// implementations of StreamFeedbackObserver to register for feedback callbacks
// for a given set of SSRCs.
// Registration methods need to be called from the same execution context
// (thread or task queue) and callbacks to
// StreamFeedbackObserver::OnPacketFeedbackVector will be made in that same
// context.
// TODO(tommi): This appears to be the only implementation of this interface.
// Do we need the interface?
class TransportFeedbackDemuxer final : public StreamFeedbackProvider {
// Implements StreamFeedbackProvider interface
void RegisterStreamFeedbackObserver(
std::vector<uint32_t> ssrcs,
StreamFeedbackObserver* observer) override;
void DeRegisterStreamFeedbackObserver(
StreamFeedbackObserver* observer) override;
void AddPacket(const RtpPacketSendInfo& packet_info);
void OnTransportFeedback(const rtcp::TransportFeedback& feedback);
RTC_NO_UNIQUE_ADDRESS SequenceChecker observer_checker_;
SequenceNumberUnwrapper seq_num_unwrapper_ RTC_GUARDED_BY(&observer_checker_);
std::map<int64_t, StreamFeedbackObserver::StreamPacketInfo> history_
// Maps a set of ssrcs to corresponding observer. Vectors are used rather than
// set/map to ensure that the processing order is consistent independently of
// the randomized ssrcs.
std::vector<std::pair<std::vector<uint32_t>, StreamFeedbackObserver*>>
observers_ RTC_GUARDED_BY(&observer_checker_);
} // namespace webrtc