CRtspSession.h

Go to the documentation of this file.

#pragma once
#include "../../../Defines.h"
 
#ifdef USE_CAMERA_MODULE
 
#include "CStreamer.h"
#include "platglue.h"
 
// supported command types
enum RTSP_CMD_TYPES
{
    RTSP_OPTIONS,
    RTSP_DESCRIBE,
    RTSP_SETUP,
    RTSP_PLAY,
    RTSP_TEARDOWN,
    RTSP_UNKNOWN
};
 
#define RTSP_BUFFER_SIZE       10000    // for incoming requests, and outgoing responses
#define RTSP_PARAM_STRING_MAX  200
#define MAX_HOSTNAME_LEN       256
 
class CRtspSession
{
public:
    CRtspSession(SOCKET aRtspClient, CStreamer * aStreamer);
    ~CRtspSession();
 
    RTSP_CMD_TYPES Handle_RtspRequest(char const * aRequest, unsigned aRequestSize);
    int            GetStreamID();
 
    /**
       Read from our socket, parsing commands as possible.
 
       return false if the read timed out
     */
    bool handleRequests(uint32_t readTimeoutMs);
 
    /**
       broadcast a current frame
     */
    void broadcastCurrentFrame(uint32_t curMsec);
 
    bool m_streaming;
    bool m_stopped;
 
private:
    void Init();
    bool ParseRtspRequest(char const * aRequest, unsigned aRequestSize);
    char const * DateHeader();
 
    // RTSP request command handlers
    void Handle_RtspOPTION();
    void Handle_RtspDESCRIBE();
    void Handle_RtspSETUP();
    void Handle_RtspPLAY();
 
    // global session state parameters
    int m_RtspSessionID;
    SOCKET m_RtspClient;                                      // RTSP socket of that session
    int m_StreamID;                                           // number of simulated stream of that session
    IPPORT m_ClientRTPPort;                                  // client port for UDP based RTP transport
    IPPORT m_ClientRTCPPort;                                 // client port for UDP based RTCP transport
    bool m_TcpTransport;                                      // if Tcp based streaming was activated
    CStreamer    * m_Streamer;                                // the UDP or TCP streamer of that session
 
    // parameters of the last received RTSP request
 
    RTSP_CMD_TYPES m_RtspCmdType;                             // command type (if any) of the current request
    char m_URLPreSuffix[RTSP_PARAM_STRING_MAX];               // stream name pre suffix
    char m_URLSuffix[RTSP_PARAM_STRING_MAX];                  // stream name suffix
    char m_CSeq[RTSP_PARAM_STRING_MAX];                       // RTSP command sequence number
    char m_URLHostPort[MAX_HOSTNAME_LEN];                     // host:port part of the URL
    unsigned m_ContentLength;                                 // SDP string size
};
 
 
#endif