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/*
* Copyright (c) 2016 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 MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_
#define MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_
#include <vector>
#include "modules/rtp_rtcp/source/rtcp_packet/psfb.h"
namespace webrtc {
namespace rtcp {
class CommonHeader;
// Receiver Estimated Max Bitrate (REMB) (draft-alvestrand-rmcat-remb).
class Remb : public Psfb {
public:
static constexpr size_t kMaxNumberOfSsrcs = 0xff;
Remb();
Remb(const Remb&);
~Remb() override;
// Parse assumes header is already parsed and validated.
bool Parse(const CommonHeader& packet);
bool SetSsrcs(std::vector<uint32_t> ssrcs);
void SetBitrateBps(int64_t bitrate_bps) { bitrate_bps_ = bitrate_bps; }
int64_t bitrate_bps() const { return bitrate_bps_; }
const std::vector<uint32_t>& ssrcs() const { return ssrcs_; }
size_t BlockLength() const override;
bool Create(uint8_t* packet,
size_t* index,
size_t max_length,
PacketReadyCallback callback) const override;
private:
static constexpr uint32_t kUniqueIdentifier = 0x52454D42; // 'R' 'E' 'M' 'B'.
// Media ssrc is unused, shadow base class setter and getter.
void SetMediaSsrc(uint32_t);
uint32_t media_ssrc() const;
int64_t bitrate_bps_;
std::vector<uint32_t> ssrcs_;
};
} // namespace rtcp
} // namespace webrtc
#endif // MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_
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