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1 /* | 1 /* |
2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2015 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_TRANSPORT_FEEDBACK_H_ | 11 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TRANSPORT_FEEDBACK_H_ |
12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TRANSPORT_FEEDBACK_H_ | 12 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TRANSPORT_FEEDBACK_H_ |
13 | 13 |
14 #include <deque> | 14 #include <deque> |
15 #include <memory> | 15 #include <memory> |
16 #include <vector> | 16 #include <vector> |
17 | 17 |
18 #include "webrtc/base/constructormagic.h" | 18 #include "webrtc/base/constructormagic.h" |
19 #include "webrtc/base/deprecation.h" | |
20 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/rtpfb.h" | 19 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/rtpfb.h" |
21 | 20 |
22 namespace webrtc { | 21 namespace webrtc { |
23 namespace rtcp { | 22 namespace rtcp { |
24 class CommonHeader; | 23 class CommonHeader; |
25 | 24 |
26 class TransportFeedback : public Rtpfb { | 25 class TransportFeedback : public Rtpfb { |
27 public: | 26 public: |
28 class PacketStatusChunk; | 27 class PacketStatusChunk; |
29 // TODO(sprang): IANA reg? | 28 // TODO(sprang): IANA reg? |
30 static constexpr uint8_t kFeedbackMessageType = 15; | 29 static constexpr uint8_t kFeedbackMessageType = 15; |
31 // Convert to multiples of 0.25ms. | 30 // Convert to multiples of 0.25ms. |
32 static constexpr int kDeltaScaleFactor = 250; | 31 static constexpr int kDeltaScaleFactor = 250; |
33 | 32 |
34 TransportFeedback(); | 33 TransportFeedback(); |
35 ~TransportFeedback() override; | 34 ~TransportFeedback() override; |
36 | 35 |
37 void SetBase(uint16_t base_sequence, // Seq# of first packet in this msg. | 36 void WithPacketSenderSsrc(uint32_t ssrc) { From(ssrc); } |
38 int64_t ref_timestamp_us); // Reference timestamp for this msg. | 37 void WithMediaSourceSsrc(uint32_t ssrc) { To(ssrc); } |
39 void SetFeedbackSequenceNumber(uint8_t feedback_sequence); | 38 void WithBase(uint16_t base_sequence, // Seq# of first packet in this msg. |
| 39 int64_t ref_timestamp_us); // Reference timestamp for this msg. |
| 40 void WithFeedbackSequenceNumber(uint8_t feedback_sequence); |
40 // NOTE: This method requires increasing sequence numbers (excepting wraps). | 41 // NOTE: This method requires increasing sequence numbers (excepting wraps). |
41 bool AddReceivedPacket(uint16_t sequence_number, int64_t timestamp_us); | 42 bool WithReceivedPacket(uint16_t sequence_number, int64_t timestamp_us); |
42 | 43 |
43 enum class StatusSymbol { | 44 enum class StatusSymbol { |
44 kNotReceived, | 45 kNotReceived, |
45 kReceivedSmallDelta, | 46 kReceivedSmallDelta, |
46 kReceivedLargeDelta, | 47 kReceivedLargeDelta, |
47 }; | 48 }; |
48 | 49 |
49 uint16_t GetBaseSequence() const; | 50 uint16_t GetBaseSequence() const; |
50 std::vector<TransportFeedback::StatusSymbol> GetStatusVector() const; | 51 std::vector<TransportFeedback::StatusSymbol> GetStatusVector() const; |
51 std::vector<int16_t> GetReceiveDeltas() const; | 52 std::vector<int16_t> GetReceiveDeltas() const; |
52 | 53 |
53 // Get the reference time in microseconds, including any precision loss. | 54 // Get the reference time in microseconds, including any precision loss. |
54 int64_t GetBaseTimeUs() const; | 55 int64_t GetBaseTimeUs() const; |
55 // Convenience method for getting all deltas as microseconds. The first delta | 56 // Convenience method for getting all deltas as microseconds. The first delta |
56 // is relative the base time. | 57 // is relative the base time. |
57 std::vector<int64_t> GetReceiveDeltasUs() const; | 58 std::vector<int64_t> GetReceiveDeltasUs() const; |
58 | 59 |
| 60 uint32_t GetPacketSenderSsrc() const { return sender_ssrc(); } |
| 61 uint32_t GetMediaSourceSsrc() const { return media_ssrc(); } |
| 62 |
59 bool Parse(const CommonHeader& packet); | 63 bool Parse(const CommonHeader& packet); |
60 static std::unique_ptr<TransportFeedback> ParseFrom(const uint8_t* buffer, | 64 static std::unique_ptr<TransportFeedback> ParseFrom(const uint8_t* buffer, |
61 size_t length); | 65 size_t length); |
62 | 66 |
63 RTC_DEPRECATED | |
64 void WithPacketSenderSenderSsrc(uint32_t ssrc) { SetSenderSsrc(ssrc); } | |
65 RTC_DEPRECATED | |
66 void WithMediaSourceSsrc(uint32_t ssrc) { SetMediaSsrc(ssrc); } | |
67 RTC_DEPRECATED | |
68 void WithBase(uint16_t base_sequence, int64_t ref_timestamp_us) { | |
69 SetBase(base_sequence, ref_timestamp_us); | |
70 } | |
71 RTC_DEPRECATED | |
72 void WithFeedbackSequenceNumber(uint8_t feedback_sequence) { | |
73 SetFeedbackSequenceNumber(feedback_sequence); | |
74 } | |
75 RTC_DEPRECATED | |
76 bool WithReceivedPacket(uint16_t sequence_number, int64_t timestamp_us) { | |
77 return AddReceivedPacket(sequence_number, timestamp_us); | |
78 } | |
79 | |
80 protected: | 67 protected: |
81 bool Create(uint8_t* packet, | 68 bool Create(uint8_t* packet, |
82 size_t* position, | 69 size_t* position, |
83 size_t max_length, | 70 size_t max_length, |
84 PacketReadyCallback* callback) const override; | 71 PacketReadyCallback* callback) const override; |
85 | 72 |
86 size_t BlockLength() const override; | 73 size_t BlockLength() const override; |
87 | 74 |
88 private: | 75 private: |
89 static PacketStatusChunk* ParseChunk(const uint8_t* buffer, size_t max_size); | 76 static PacketStatusChunk* ParseChunk(const uint8_t* buffer, size_t max_size); |
(...skipping 20 matching lines...) Expand all Loading... |
110 uint16_t first_symbol_cardinality_; | 97 uint16_t first_symbol_cardinality_; |
111 bool vec_needs_two_bit_symbols_; | 98 bool vec_needs_two_bit_symbols_; |
112 uint32_t size_bytes_; | 99 uint32_t size_bytes_; |
113 | 100 |
114 RTC_DISALLOW_COPY_AND_ASSIGN(TransportFeedback); | 101 RTC_DISALLOW_COPY_AND_ASSIGN(TransportFeedback); |
115 }; | 102 }; |
116 | 103 |
117 } // namespace rtcp | 104 } // namespace rtcp |
118 } // namespace webrtc | 105 } // namespace webrtc |
119 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TRANSPORT_FEEDBACK_H_ | 106 #endif // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_TRANSPORT_FEEDBACK_H_ |
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