61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
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/*
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* Copyright (c) 2016 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 WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_
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#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_
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#include <vector>
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#include "webrtc/base/basictypes.h"
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#include "webrtc/modules/rtp_rtcp/source/rtcp_packet.h"
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#include "webrtc/modules/rtp_rtcp/source/rtcp_utility.h"
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namespace webrtc {
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namespace rtcp {
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// Receiver Estimated Max Bitrate (REMB) (draft-alvestrand-rmcat-remb).
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class Remb : public RtcpPacket {
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public:
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Remb() : RtcpPacket() {
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memset(&remb_, 0, sizeof(remb_));
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memset(&remb_item_, 0, sizeof(remb_item_));
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}
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virtual ~Remb() {}
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void From(uint32_t ssrc) {
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remb_.SenderSSRC = ssrc;
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}
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void AppliesTo(uint32_t ssrc);
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void WithBitrateBps(uint32_t bitrate_bps) {
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remb_item_.BitRate = bitrate_bps;
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}
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protected:
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bool Create(uint8_t* packet,
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size_t* index,
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size_t max_length,
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RtcpPacket::PacketReadyCallback* callback) const override;
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private:
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static const int kMaxNumberOfSsrcs = 0xff;
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size_t BlockLength() const {
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return (remb_item_.NumberOfSSRCs + 5) * 4;
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}
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RTCPUtility::RTCPPacketPSFBAPP remb_;
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RTCPUtility::RTCPPacketPSFBREMBItem remb_item_;
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RTC_DISALLOW_COPY_AND_ASSIGN(Remb);
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};
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} // namespace rtcp
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} // namespace webrtc
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#endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_
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