1/*
2 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 *
10 */
11
12#ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TMMBR_H_
13#define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TMMBR_H_
14
15#include "webrtc/base/basictypes.h"
16#include "webrtc/modules/rtp_rtcp/source/rtcp_packet.h"
17#include "webrtc/modules/rtp_rtcp/source/rtcp_utility.h"
18
19namespace webrtc {
20namespace rtcp {
21// Temporary Maximum Media Stream Bit Rate Request (TMMBR) (RFC 5104).
22class Tmmbr : public RtcpPacket {
23 public:
24  Tmmbr() : RtcpPacket() {
25    memset(&tmmbr_, 0, sizeof(tmmbr_));
26    memset(&tmmbr_item_, 0, sizeof(tmmbr_item_));
27  }
28
29  virtual ~Tmmbr() {}
30
31  void From(uint32_t ssrc) {
32    tmmbr_.SenderSSRC = ssrc;
33  }
34  void To(uint32_t ssrc) {
35    tmmbr_item_.SSRC = ssrc;
36  }
37  void WithBitrateKbps(uint32_t bitrate_kbps) {
38    tmmbr_item_.MaxTotalMediaBitRate = bitrate_kbps;
39  }
40  void WithOverhead(uint16_t overhead) {
41    assert(overhead <= 0x1ff);
42    tmmbr_item_.MeasuredOverhead = overhead;
43  }
44
45 protected:
46  bool Create(uint8_t* packet,
47              size_t* index,
48              size_t max_length,
49              RtcpPacket::PacketReadyCallback* callback) const override;
50
51 private:
52  size_t BlockLength() const {
53    const size_t kFciLen = 8;
54    return kCommonFbFmtLength + kFciLen;
55  }
56
57  RTCPUtility::RTCPPacketRTPFBTMMBR tmmbr_;
58  RTCPUtility::RTCPPacketRTPFBTMMBRItem tmmbr_item_;
59
60  RTC_DISALLOW_COPY_AND_ASSIGN(Tmmbr);
61};
62}  // namespace rtcp
63}  // namespace webrtc
64#endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TMMBR_H_
65