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| 1 /* | |
| 2 * Copyright (c) 2015 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_MODULES_PACING_INCLUDE_PACKET_ROUTER_H_ | |
| 12 #define WEBRTC_MODULES_PACING_INCLUDE_PACKET_ROUTER_H_ | |
| 13 | |
| 14 #include <list> | |
| 15 | |
| 16 #include "webrtc/base/constructormagic.h" | |
| 17 #include "webrtc/base/criticalsection.h" | |
| 18 #include "webrtc/base/scoped_ptr.h" | |
| 19 #include "webrtc/base/thread_annotations.h" | |
| 20 #include "webrtc/common_types.h" | |
| 21 #include "webrtc/modules/pacing/include/paced_sender.h" | |
| 22 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" | |
| 23 | |
| 24 namespace webrtc { | |
| 25 | |
| 26 class RtpRtcp; | |
| 27 namespace rtcp { | |
| 28 class TransportFeedback; | |
| 29 } // namespace rtcp | |
| 30 | |
| 31 // PacketRouter routes outgoing data to the correct sending RTP module, based | |
| 32 // on the simulcast layer in RTPVideoHeader. | |
| 33 class PacketRouter : public PacedSender::Callback, | |
| 34 public TransportSequenceNumberAllocator { | |
| 35 public: | |
| 36 PacketRouter(); | |
| 37 virtual ~PacketRouter(); | |
| 38 | |
| 39 void AddRtpModule(RtpRtcp* rtp_module); | |
| 40 void RemoveRtpModule(RtpRtcp* rtp_module); | |
| 41 | |
| 42 // Implements PacedSender::Callback. | |
| 43 bool TimeToSendPacket(uint32_t ssrc, | |
| 44 uint16_t sequence_number, | |
| 45 int64_t capture_timestamp, | |
| 46 bool retransmission) override; | |
| 47 | |
| 48 size_t TimeToSendPadding(size_t bytes) override; | |
| 49 | |
| 50 void SetTransportWideSequenceNumber(uint16_t sequence_number); | |
| 51 uint16_t AllocateSequenceNumber() override; | |
| 52 | |
| 53 // Send transport feedback packet to send-side. | |
| 54 virtual bool SendFeedback(rtcp::TransportFeedback* packet); | |
| 55 | |
| 56 private: | |
| 57 rtc::CriticalSection modules_lock_; | |
| 58 // Map from ssrc to sending rtp module. | |
| 59 std::list<RtpRtcp*> rtp_modules_ GUARDED_BY(modules_lock_); | |
| 60 | |
| 61 volatile int transport_seq_; | |
| 62 | |
| 63 RTC_DISALLOW_COPY_AND_ASSIGN(PacketRouter); | |
| 64 }; | |
| 65 } // namespace webrtc | |
| 66 #endif // WEBRTC_MODULES_PACING_INCLUDE_PACKET_ROUTER_H_ | |
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