ZLMediaKit/src/Rtsp/RtspSession.h
2019-05-30 12:14:20 +08:00

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/*
* MIT License
*
* Copyright (c) 2016-2019 xiongziliang <771730766@qq.com>
*
* This file is part of ZLMediaKit(https://github.com/xiongziliang/ZLMediaKit).
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef SESSION_RTSPSESSION_H_
#define SESSION_RTSPSESSION_H_
#include <set>
#include <vector>
#include <unordered_set>
#include <unordered_map>
#include "Util/util.h"
#include "Util/logger.h"
#include "Common/config.h"
#include "Network/TcpSession.h"
#include "Player/PlayerBase.h"
#include "Rtsp.h"
#include "RtpBroadCaster.h"
#include "RtspMediaSource.h"
#include "RtspSplitter.h"
#include "RtpReceiver.h"
#include "RtspToRtmpMediaSource.h"
using namespace std;
using namespace toolkit;
namespace mediakit {
class RtspSession;
class BufferRtp : public Buffer{
public:
typedef std::shared_ptr<BufferRtp> Ptr;
BufferRtp(const RtpPacket::Ptr & pkt,uint32_t offset = 0 ):_rtp(pkt),_offset(offset){}
virtual ~BufferRtp(){}
char *data() const override {
return (char *)_rtp->payload + _offset;
}
uint32_t size() const override {
return _rtp->length - _offset;
}
private:
RtpPacket::Ptr _rtp;
uint32_t _offset;
};
class RtspSession: public TcpSession, public RtspSplitter, public RtpReceiver , public MediaSourceEvent{
public:
typedef std::shared_ptr<RtspSession> Ptr;
typedef std::function<void(const string &realm)> onGetRealm;
//encrypted为true是则表明是md5加密的密码否则是明文密码
//在请求明文密码时如果提供md5密码者则会导致认证失败
typedef std::function<void(bool encrypted,const string &pwd_or_md5)> onAuth;
RtspSession(const Socket::Ptr &pSock);
virtual ~RtspSession();
void onRecv(const Buffer::Ptr &pBuf) override;
void onError(const SockException &err) override;
void onManager() override;
protected:
//RtspSplitter override
/**
* 收到完整的rtsp包回调包括sdp等content数据
* @param parser rtsp包
*/
void onWholeRtspPacket(Parser &parser) override;
/**
* 收到rtp包回调
* @param data
* @param len
*/
void onRtpPacket(const char *data,uint64_t len) override;
/**
* 从rtsp头中获取Content长度
* @param parser
* @return
*/
int64_t getContentLength(Parser &parser) override;
//RtpReceiver override
void onRtpSorted(const RtpPacket::Ptr &rtppt, int trackidx) override;
//MediaSourceEvent override
bool close(MediaSource &sender,bool force) override ;
//TcpSession override
int send(const Buffer::Ptr &pkt) override;
/**
* 收到RTCP包回调
* @param iTrackidx
* @param track
* @param pucData
* @param uiLen
*/
virtual void onRtcpPacket(int iTrackidx, SdpTrack::Ptr &track, unsigned char *pucData, unsigned int uiLen);
private:
void handleReq_Options(const Parser &parser); //处理options方法
void handleReq_Describe(const Parser &parser); //处理describe方法
void handleReq_ANNOUNCE(const Parser &parser); //处理options方法
void handleReq_RECORD(const Parser &parser); //处理options方法
void handleReq_Setup(const Parser &parser); //处理setup方法
void handleReq_Play(const Parser &parser); //处理play方法
void handleReq_Pause(const Parser &parser); //处理pause方法
void handleReq_Teardown(const Parser &parser); //处理teardown方法
void handleReq_Get(const Parser &parser); //处理Get方法
void handleReq_Post(const Parser &parser); //处理Post方法
void handleReq_SET_PARAMETER(const Parser &parser); //处理SET_PARAMETER方法
void inline send_StreamNotFound(); //rtsp资源未找到
void inline send_UnsupportedTransport(); //不支持的传输模式
void inline send_SessionNotFound(); //会话id错误
void inline send_NotAcceptable(); //rtsp同时播放数限制
inline string printSSRC(uint32_t ui32Ssrc);
inline int getTrackIndexByTrackType(TrackType type);
inline int getTrackIndexByControlSuffix(const string &controlSuffix);
inline int getTrackIndexByInterleaved(int interleaved);
inline void onRcvPeerUdpData(int intervaled, const Buffer::Ptr &pBuf, const struct sockaddr &addr);
inline void startListenPeerUdpData(int iTrackIdx);
//认证相关
void onAuthSuccess();
void onAuthFailed(const string &realm,const string &why,bool close = true);
void onAuthUser(const string &realm,const string &authorization);
void onAuthBasic(const string &realm,const string &strBase64);
void onAuthDigest(const string &realm,const string &strMd5);
inline void sendRtpPacket(const RtpPacket::Ptr &pkt);
bool sendRtspResponse(const string &res_code,const std::initializer_list<string> &header, const string &sdp = "" , const char *protocol = "RTSP/1.0");
bool sendRtspResponse(const string &res_code,const StrCaseMap &header = StrCaseMap(), const string &sdp = "",const char *protocol = "RTSP/1.0");
private:
Ticker _ticker;
int _iCseq = 0;
string _strContentBase;
string _strSdp;
string _strSession;
bool _bFirstPlay = true;
MediaInfo _mediaInfo;
std::weak_ptr<RtspMediaSource> _pMediaSrc;
RingBuffer<RtpPacket::Ptr>::RingReader::Ptr _pRtpReader;
Rtsp::eRtpType _rtpType = Rtsp::RTP_Invalid;
vector<SdpTrack::Ptr> _aTrackInfo;
//RTP over udp
Socket::Ptr _apRtpSock[2]; //RTP端口,trackid idx 为数组下标
Socket::Ptr _apRtcpSock[2];//RTCP端口,trackid idx 为数组下标
unordered_set<int> _udpSockConnected;
//RTP over udp_multicast
RtpBroadCaster::Ptr _pBrdcaster;
//登录认证
string _strNonce;
//消耗的总流量
uint64_t _ui64TotalBytes = 0;
//RTSP over HTTP
//quicktime 请求rtsp会产生两次tcp连接
//一次发送 get 一次发送post需要通过x-sessioncookie关联起来
string _http_x_sessioncookie;
function<void(const Buffer::Ptr &pBuf)> _onRecv;
atomic<bool> _enableSendRtp;
//rtsp推流相关
RtspToRtmpMediaSource::Ptr _pushSrc;
RtcpCounter _aRtcpCnt[2]; //rtcp统计,trackid idx 为数组下标
Ticker _aRtcpTicker[2]; //rtcp发送时间,trackid idx 为数组下标
inline void sendSenderReport(bool overTcp,int iTrackIndex);
};
/**
* 支持ssl加密的rtsp服务器可用于诸如亚马逊echo show这样的设备访问
*/
typedef TcpSessionWithSSL<RtspSession> RtspSessionWithSSL;
} /* namespace mediakit */
#endif /* SESSION_RTSPSESSION_H_ */