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1 /* | |
2 * Copyright (c) 2012 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 #ifndef WEBRTC_VIDEO_VIE_RECEIVER_H_ | |
12 #define WEBRTC_VIDEO_VIE_RECEIVER_H_ | |
13 | |
14 #include <list> | |
15 #include <vector> | |
16 | |
17 #include "webrtc/base/scoped_ptr.h" | |
18 #include "webrtc/engine_configurations.h" | |
19 #include "webrtc/modules/rtp_rtcp/include/receive_statistics.h" | |
20 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" | |
21 #include "webrtc/typedefs.h" | |
22 | |
23 namespace webrtc { | |
24 | |
25 class CriticalSectionWrapper; | |
26 class FecReceiver; | |
27 class RemoteNtpTimeEstimator; | |
28 class ReceiveStatistics; | |
29 class RemoteBitrateEstimator; | |
30 class RtpHeaderParser; | |
31 class RTPPayloadRegistry; | |
32 class RtpReceiver; | |
33 class RtpRtcp; | |
34 class VideoCodingModule; | |
35 struct ReceiveBandwidthEstimatorStats; | |
36 | |
37 class ViEReceiver : public RtpData { | |
38 public: | |
39 ViEReceiver(VideoCodingModule* module_vcm, | |
40 RemoteBitrateEstimator* remote_bitrate_estimator, | |
41 RtpFeedback* rtp_feedback); | |
42 ~ViEReceiver(); | |
43 | |
44 bool SetReceiveCodec(const VideoCodec& video_codec); | |
45 bool RegisterPayload(const VideoCodec& video_codec); | |
46 | |
47 void SetNackStatus(bool enable, int max_nack_reordering_threshold); | |
48 void SetRtxPayloadType(int payload_type, int associated_payload_type); | |
49 // If set to true, the RTX payload type mapping supplied in | |
50 // |SetRtxPayloadType| will be used when restoring RTX packets. Without it, | |
51 // RTX packets will always be restored to the last non-RTX packet payload type | |
52 // received. | |
53 void SetUseRtxPayloadMappingOnRestore(bool val); | |
54 void SetRtxSsrc(uint32_t ssrc); | |
55 bool GetRtxSsrc(uint32_t* ssrc) const; | |
56 | |
57 bool IsFecEnabled() const; | |
58 | |
59 uint32_t GetRemoteSsrc() const; | |
60 int GetCsrcs(uint32_t* csrcs) const; | |
61 | |
62 void SetRtpRtcpModule(RtpRtcp* module); | |
63 | |
64 RtpReceiver* GetRtpReceiver() const; | |
65 | |
66 void RegisterRtpRtcpModules(const std::vector<RtpRtcp*>& rtp_modules); | |
67 | |
68 bool SetReceiveTimestampOffsetStatus(bool enable, int id); | |
69 bool SetReceiveAbsoluteSendTimeStatus(bool enable, int id); | |
70 bool SetReceiveVideoRotationStatus(bool enable, int id); | |
71 bool SetReceiveTransportSequenceNumber(bool enable, int id); | |
72 | |
73 void StartReceive(); | |
74 void StopReceive(); | |
75 | |
76 // Receives packets from external transport. | |
77 int ReceivedRTPPacket(const void* rtp_packet, size_t rtp_packet_length, | |
78 const PacketTime& packet_time); | |
79 int ReceivedRTCPPacket(const void* rtcp_packet, size_t rtcp_packet_length); | |
80 | |
81 // Implements RtpData. | |
82 int32_t OnReceivedPayloadData(const uint8_t* payload_data, | |
83 const size_t payload_size, | |
84 const WebRtcRTPHeader* rtp_header) override; | |
85 bool OnRecoveredPacket(const uint8_t* packet, size_t packet_length) override; | |
86 | |
87 ReceiveStatistics* GetReceiveStatistics() const; | |
88 | |
89 private: | |
90 int InsertRTPPacket(const uint8_t* rtp_packet, size_t rtp_packet_length, | |
91 const PacketTime& packet_time); | |
92 bool ReceivePacket(const uint8_t* packet, | |
93 size_t packet_length, | |
94 const RTPHeader& header, | |
95 bool in_order); | |
96 // Parses and handles for instance RTX and RED headers. | |
97 // This function assumes that it's being called from only one thread. | |
98 bool ParseAndHandleEncapsulatingHeader(const uint8_t* packet, | |
99 size_t packet_length, | |
100 const RTPHeader& header); | |
101 void NotifyReceiverOfFecPacket(const RTPHeader& header); | |
102 int InsertRTCPPacket(const uint8_t* rtcp_packet, size_t rtcp_packet_length); | |
103 bool IsPacketInOrder(const RTPHeader& header) const; | |
104 bool IsPacketRetransmitted(const RTPHeader& header, bool in_order) const; | |
105 void UpdateHistograms(); | |
106 | |
107 rtc::scoped_ptr<CriticalSectionWrapper> receive_cs_; | |
108 Clock* clock_; | |
109 rtc::scoped_ptr<RtpHeaderParser> rtp_header_parser_; | |
110 rtc::scoped_ptr<RTPPayloadRegistry> rtp_payload_registry_; | |
111 rtc::scoped_ptr<RtpReceiver> rtp_receiver_; | |
112 const rtc::scoped_ptr<ReceiveStatistics> rtp_receive_statistics_; | |
113 rtc::scoped_ptr<FecReceiver> fec_receiver_; | |
114 RtpRtcp* rtp_rtcp_; | |
115 std::vector<RtpRtcp*> rtp_rtcp_simulcast_; | |
116 VideoCodingModule* vcm_; | |
117 RemoteBitrateEstimator* remote_bitrate_estimator_; | |
118 | |
119 rtc::scoped_ptr<RemoteNtpTimeEstimator> ntp_estimator_; | |
120 | |
121 bool receiving_; | |
122 uint8_t restored_packet_[IP_PACKET_SIZE]; | |
123 bool restored_packet_in_use_; | |
124 bool receiving_ast_enabled_; | |
125 bool receiving_cvo_enabled_; | |
126 bool receiving_tsn_enabled_; | |
127 int64_t last_packet_log_ms_; | |
128 }; | |
129 | |
130 } // namespace webrtc | |
131 | |
132 #endif // WEBRTC_VIDEO_VIE_RECEIVER_H_ | |
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