/* * Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved. * * This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit). * * Use of this source code is governed by MIT license that can be found in the * LICENSE file in the root of the source tree. All contributing project authors * may be found in the AUTHORS file in the root of the source tree. */ #ifndef SESSION_RTSPSESSION_H_ #define SESSION_RTSPSESSION_H_ #include #include #include #include #include "Util/util.h" #include "Util/logger.h" #include "Common/config.h" #include "Network/Session.h" #include "Player/PlayerBase.h" #include "RtpMultiCaster.h" #include "RtspMediaSource.h" #include "RtspSplitter.h" #include "RtpReceiver.h" #include "RtspMediaSourceImp.h" #include "Common/Stamp.h" #include "Rtcp/RtcpContext.h" namespace mediakit { class RtspSession; class BufferRtp : public toolkit::Buffer{ public: using Ptr = std::shared_ptr; BufferRtp(Buffer::Ptr pkt, size_t offset = 0) : _offset(offset), _rtp(std::move(pkt)) {} ~BufferRtp() override = default; char *data() const override { return (char *)_rtp->data() + _offset; } size_t size() const override { return _rtp->size() - _offset; } private: size_t _offset; Buffer::Ptr _rtp; }; class RtspSession : public toolkit::Session, public RtspSplitter, public RtpReceiver, public MediaSourceEvent { public: using Ptr = std::shared_ptr; using onGetRealm = std::function; //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 using onAuth = std::function; RtspSession(const toolkit::Socket::Ptr &sock); virtual ~RtspSession(); ////Session override//// void onRecv(const toolkit::Buffer::Ptr &buf) override; void onError(const toolkit::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 void onWholeRtspPacket(Parser &parser) override; //收到rtp包回调 void onRtpPacket(const char *data, size_t len) override; //从rtsp头中获取Content长度 ssize_t getContentLength(Parser &parser) override; ////RtpReceiver override//// void onRtpSorted(RtpPacket::Ptr rtp, int track_idx) override; void onBeforeRtpSorted(const RtpPacket::Ptr &rtp, int track_index) override; ///////MediaSourceEvent override/////// // 关闭 bool close(MediaSource &sender) override; // 播放总人数 int totalReaderCount(MediaSource &sender) override; // 获取媒体源类型 MediaOriginType getOriginType(MediaSource &sender) const override; // 获取媒体源url或者文件路径 std::string getOriginUrl(MediaSource &sender) const override; // 获取媒体源客户端相关信息 std::shared_ptr getOriginSock(MediaSource &sender) const override; // 由于支持断连续推,存在OwnerPoller变更的可能 toolkit::EventPoller::Ptr getOwnerPoller(MediaSource &sender) override; /////Session override//// ssize_t send(toolkit::Buffer::Ptr pkt) override; //收到RTCP包回调 virtual void onRtcpPacket(int track_idx, SdpTrack::Ptr &track, const char *data, size_t len); private: //处理options方法,获取服务器能力 void handleReq_Options(const Parser &parser); //处理describe方法,请求服务器rtsp sdp信息 void handleReq_Describe(const Parser &parser); //处理ANNOUNCE方法,请求推流,附带sdp void handleReq_ANNOUNCE(const Parser &parser); //处理record方法,开始推流 void handleReq_RECORD(const Parser &parser); //处理setup方法,播放和推流协商rtp传输方式用 void handleReq_Setup(const Parser &parser); //处理play方法,开始或恢复播放 void handleReq_Play(const Parser &parser); //处理pause方法,暂停播放 void handleReq_Pause(const Parser &parser); //处理teardown方法,结束播放 void handleReq_Teardown(const Parser &parser); //处理Get方法,rtp over http才用到 void handleReq_Get(const Parser &parser); //处理Post方法,rtp over http才用到 void handleReq_Post(const Parser &parser); //处理SET_PARAMETER、GET_PARAMETER方法,一般用于心跳 void handleReq_SET_PARAMETER(const Parser &parser); //rtsp资源未找到 void send_StreamNotFound(); //不支持的传输模式 void send_UnsupportedTransport(); //会话id错误 void send_SessionNotFound(); //一般rtsp服务器打开端口失败时触发 void send_NotAcceptable(); //获取track下标 int getTrackIndexByTrackType(TrackType type); int getTrackIndexByControlUrl(const std::string &control_url); int getTrackIndexByInterleaved(int interleaved); //一般用于接收udp打洞包,也用于rtsp推流 void onRcvPeerUdpData(int interleaved, const toolkit::Buffer::Ptr &buf, const struct sockaddr_storage &addr); //配合onRcvPeerUdpData使用 void startListenPeerUdpData(int track_idx); ////rtsp专有认证相关//// //认证成功 void onAuthSuccess(); //认证失败 void onAuthFailed(const std::string &realm, const std::string &why, bool close = true); //开始走rtsp专有认证流程 void onAuthUser(const std::string &realm, const std::string &authorization); //校验base64方式的认证加密 void onAuthBasic(const std::string &realm, const std::string &auth_base64); //校验md5方式的认证加密 void onAuthDigest(const std::string &realm, const std::string &auth_md5); //触发url鉴权事件 void emitOnPlay(); //发送rtp给客户端 void sendRtpPacket(const RtspMediaSource::RingDataType &pkt); //触发rtcp发送 void updateRtcpContext(const RtpPacket::Ptr &rtp); //回复客户端 bool sendRtspResponse(const std::string &res_code, const std::initializer_list &header, const std::string &sdp = "", const char *protocol = "RTSP/1.0"); bool sendRtspResponse(const std::string &res_code, const StrCaseMap &header = StrCaseMap(), const std::string &sdp = "", const char *protocol = "RTSP/1.0"); //设置socket标志 void setSocketFlags(); private: //是否已经触发on_play事件 bool _emit_on_play = false; bool _send_sr_rtcp[2] = {true, true}; //断连续推延时 uint32_t _continue_push_ms = 0; //推流或拉流客户端采用的rtp传输方式 Rtsp::eRtpType _rtp_type = Rtsp::RTP_Invalid; //收到的seq,回复时一致 int _cseq = 0; //消耗的总流量 uint64_t _bytes_usage = 0; //ContentBase std::string _content_base; //Session号 std::string _sessionid; //记录是否需要rtsp专属鉴权,防止重复触发事件 std::string _rtsp_realm; //登录认证 std::string _auth_nonce; //用于判断客户端是否超时 toolkit::Ticker _alive_ticker; //url解析后保存的相关信息 MediaInfo _media_info; //rtsp推流相关绑定的源 RtspMediaSourceImp::Ptr _push_src; //推流器所有权 std::shared_ptr _push_src_ownership; //rtsp播放器绑定的直播源 std::weak_ptr _play_src; //直播源读取器 RtspMediaSource::RingType::RingReader::Ptr _play_reader; //sdp里面有效的track,包含音频或视频 std::vector _sdp_track; //播放器setup指定的播放track,默认为TrackInvalid表示不指定即音视频都推 TrackType _target_play_track = TrackInvalid; ////////RTP over udp//////// //RTP端口,trackid idx 为数组下标 toolkit::Socket::Ptr _rtp_socks[2]; //RTCP端口,trackid idx 为数组下标 toolkit::Socket::Ptr _rtcp_socks[2]; //标记是否收到播放的udp打洞包,收到播放的udp打洞包后才能知道其外网udp端口号 std::unordered_set _udp_connected_flags; ////////RTP over udp_multicast//////// //共享的rtp组播对象 RtpMultiCaster::Ptr _multicaster; ////////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 std::string _http_x_sessioncookie; std::function _on_recv; ////////// rtcp //////////////// //rtcp发送时间,trackid idx 为数组下标 toolkit::Ticker _rtcp_send_tickers[2]; //统计rtp并发送rtcp std::vector _rtcp_context; }; /** * 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 */ using RtspSessionWithSSL = toolkit::SessionWithSSL; } /* namespace mediakit */ #endif /* SESSION_RTSPSESSION_H_ */