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1 /* | 1 /* |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_ | 11 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_ |
12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_ | 12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_ |
13 | 13 |
14 #include <vector> | 14 #include <vector> |
15 | 15 |
16 #include "webrtc/base/basictypes.h" | 16 #include "webrtc/base/basictypes.h" |
17 #include "webrtc/base/constructormagic.h" | 17 #include "webrtc/base/constructormagic.h" |
18 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/psfb.h" | 18 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/psfb.h" |
19 | 19 |
20 namespace webrtc { | 20 namespace webrtc { |
21 namespace rtcp { | 21 namespace rtcp { |
22 class CommonHeader; | 22 class CommonHeader; |
23 | 23 |
24 // Receiver Estimated Max Bitrate (REMB) (draft-alvestrand-rmcat-remb). | 24 // Receiver Estimated Max Bitrate (REMB) (draft-alvestrand-rmcat-remb). |
25 class Remb : public Psfb { | 25 class Remb : public Psfb { |
26 public: | 26 public: |
27 static constexpr uint8_t kFeedbackMessageType = 15; | 27 static constexpr uint8_t kFeedbackMessageType = 15; |
28 static constexpr size_t kMaxNumberOfSsrcs = 0xff; | |
29 | 28 |
30 Remb() : bitrate_bps_(0) {} | 29 Remb() : bitrate_bps_(0) {} |
31 ~Remb() override {} | 30 ~Remb() override {} |
32 | 31 |
33 // Parse assumes header is already parsed and validated. | 32 // Parse assumes header is already parsed and validated. |
34 bool Parse(const CommonHeader& packet); | 33 bool Parse(const CommonHeader& packet); |
35 | 34 |
36 bool SetSsrcs(std::vector<uint32_t> ssrcs); | 35 bool AppliesTo(uint32_t ssrc); |
37 void SetBitrateBps(uint64_t bitrate_bps) { bitrate_bps_ = bitrate_bps; } | 36 bool AppliesToMany(const std::vector<uint32_t>& ssrcs); |
| 37 void WithBitrateBps(uint64_t bitrate_bps) { bitrate_bps_ = bitrate_bps; } |
38 | 38 |
39 uint64_t bitrate_bps() const { return bitrate_bps_; } | 39 uint64_t bitrate_bps() const { return bitrate_bps_; } |
40 const std::vector<uint32_t>& ssrcs() const { return ssrcs_; } | 40 const std::vector<uint32_t>& ssrcs() const { return ssrcs_; } |
41 | 41 |
42 protected: | 42 protected: |
43 bool Create(uint8_t* packet, | 43 bool Create(uint8_t* packet, |
44 size_t* index, | 44 size_t* index, |
45 size_t max_length, | 45 size_t max_length, |
46 RtcpPacket::PacketReadyCallback* callback) const override; | 46 RtcpPacket::PacketReadyCallback* callback) const override; |
47 | 47 |
48 size_t BlockLength() const override { | 48 size_t BlockLength() const override { |
49 return kHeaderLength + kCommonFeedbackLength + (2 + ssrcs_.size()) * 4; | 49 return kHeaderLength + kCommonFeedbackLength + (2 + ssrcs_.size()) * 4; |
50 } | 50 } |
51 | 51 |
52 private: | 52 private: |
| 53 static constexpr size_t kMaxNumberOfSsrcs = 0xff; |
53 static constexpr uint32_t kUniqueIdentifier = 0x52454D42; // 'R' 'E' 'M' 'B'. | 54 static constexpr uint32_t kUniqueIdentifier = 0x52454D42; // 'R' 'E' 'M' 'B'. |
54 | 55 |
55 // Media ssrc is unused, shadow base class setter and getter. | 56 // Media ssrc is unused, shadow base class setter and getter. |
56 void SetMediaSsrc(uint32_t); | 57 void To(uint32_t); |
57 uint32_t media_ssrc() const; | 58 uint32_t media_ssrc() const; |
58 | 59 |
59 uint64_t bitrate_bps_; | 60 uint64_t bitrate_bps_; |
60 std::vector<uint32_t> ssrcs_; | 61 std::vector<uint32_t> ssrcs_; |
61 | 62 |
62 RTC_DISALLOW_COPY_AND_ASSIGN(Remb); | 63 RTC_DISALLOW_COPY_AND_ASSIGN(Remb); |
63 }; | 64 }; |
64 } // namespace rtcp | 65 } // namespace rtcp |
65 } // namespace webrtc | 66 } // namespace webrtc |
66 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_ | 67 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_REMB_H_ |
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