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8d19e03e95
and add implementation comment Bug: webrtc:8239 Change-Id: Id24937018d386e386b8241aca8f5d686e7cc527a Reviewed-on: https://webrtc-review.googlesource.com/26600 Reviewed-by: Niels Moller <nisse@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20925}
71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
/*
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* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_RTP_RTCP_SOURCE_RTCP_TRANSCEIVER_H_
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#define MODULES_RTP_RTCP_SOURCE_RTCP_TRANSCEIVER_H_
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#include <memory>
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#include <string>
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#include <vector>
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#include "modules/rtp_rtcp/source/rtcp_transceiver_config.h"
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#include "modules/rtp_rtcp/source/rtcp_transceiver_impl.h"
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#include "rtc_base/constructormagic.h"
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#include "rtc_base/copyonwritebuffer.h"
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#include "rtc_base/task_queue.h"
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#include "rtc_base/weak_ptr.h"
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namespace webrtc {
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//
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// Manage incoming and outgoing rtcp messages for multiple BUNDLED streams.
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//
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// This class is thread-safe wrapper of RtcpTransceiverImpl
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class RtcpTransceiver {
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public:
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explicit RtcpTransceiver(const RtcpTransceiverConfig& config);
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~RtcpTransceiver();
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// Handles incoming rtcp packets.
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void ReceivePacket(rtc::CopyOnWriteBuffer packet);
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// Sends RTCP packets starting with a sender or receiver report.
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void SendCompoundPacket();
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// (REMB) Receiver Estimated Max Bitrate.
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// Includes REMB in following compound packets.
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void SetRemb(int bitrate_bps, std::vector<uint32_t> ssrcs);
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// Stops sending REMB in following compound packets.
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void UnsetRemb();
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// Reports missing packets, https://tools.ietf.org/html/rfc4585#section-6.2.1
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void SendNack(uint32_t ssrc, std::vector<uint16_t> sequence_numbers);
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// Requests new key frame.
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// using PLI, https://tools.ietf.org/html/rfc4585#section-6.3.1.1
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void SendPictureLossIndication(uint32_t ssrc);
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// using FIR, https://tools.ietf.org/html/rfc5104#section-4.3.1.2
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void SendFullIntraRequest(std::vector<uint32_t> ssrcs);
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private:
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rtc::TaskQueue* const task_queue_;
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std::unique_ptr<RtcpTransceiverImpl> rtcp_transceiver_;
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rtc::WeakPtrFactory<RtcpTransceiverImpl> ptr_factory_;
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// TaskQueue, and thus tasks posted to it, may outlive this.
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// Thus when Posting task class always pass copy of the weak_ptr to access
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// the RtcpTransceiver and never guarantee it still will be alive when task
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// runs.
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rtc::WeakPtr<RtcpTransceiverImpl> ptr_;
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RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(RtcpTransceiver);
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};
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} // namespace webrtc
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#endif // MODULES_RTP_RTCP_SOURCE_RTCP_TRANSCEIVER_H_
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