ARTPConnection.h revision f8ca90452ff3e252f20de38f1c3eee524c808c3e
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef A_RTP_CONNECTION_H_ 18 19#define A_RTP_CONNECTION_H_ 20 21#include <media/stagefright/foundation/AHandler.h> 22#include <utils/List.h> 23 24namespace android { 25 26struct ABuffer; 27struct ARTPSource; 28struct ASessionDescription; 29 30struct ARTPConnection : public AHandler { 31 enum Flags { 32 kFakeTimestamps = 1, 33 kRegularlyRequestFIR = 2, 34 }; 35 36 ARTPConnection(uint32_t flags = 0); 37 38 void addStream( 39 int rtpSocket, int rtcpSocket, 40 const sp<ASessionDescription> &sessionDesc, size_t index, 41 const sp<AMessage> ¬ify); 42 43 void removeStream(int rtpSocket, int rtcpSocket); 44 45 // Creates a pair of UDP datagram sockets bound to adjacent ports 46 // (the rtpSocket is bound to an even port, the rtcpSocket to the 47 // next higher port). 48 static void MakePortPair( 49 int *rtpSocket, int *rtcpSocket, unsigned *rtpPort); 50 51protected: 52 virtual ~ARTPConnection(); 53 virtual void onMessageReceived(const sp<AMessage> &msg); 54 55private: 56 enum { 57 kWhatAddStream, 58 kWhatRemoveStream, 59 kWhatPollStreams, 60 }; 61 62 static const int64_t kSelectTimeoutUs; 63 64 uint32_t mFlags; 65 66 struct StreamInfo; 67 List<StreamInfo> mStreams; 68 69 bool mPollEventPending; 70 int64_t mLastReceiverReportTimeUs; 71 72 void onAddStream(const sp<AMessage> &msg); 73 void onRemoveStream(const sp<AMessage> &msg); 74 void onPollStreams(); 75 void onSendReceiverReports(); 76 77 status_t receive(StreamInfo *info, bool receiveRTP); 78 79 status_t parseRTP(StreamInfo *info, const sp<ABuffer> &buffer); 80 status_t parseRTCP(StreamInfo *info, const sp<ABuffer> &buffer); 81 status_t parseSR(StreamInfo *info, const uint8_t *data, size_t size); 82 status_t parseBYE(StreamInfo *info, const uint8_t *data, size_t size); 83 84 sp<ARTPSource> findSource(StreamInfo *info, uint32_t id); 85 86 void postPollEvent(); 87 88 DISALLOW_EVIL_CONSTRUCTORS(ARTPConnection); 89}; 90 91} // namespace android 92 93#endif // A_RTP_CONNECTION_H_ 94