rtspbase.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

#ifndef _RTSPBASE_H_
#define _RTSPBASE_H_

#include "rtspif.h"
#include "hxslist.h"
//#include "trmimemp.h"

const UINT16 MAX_RTSP_MSG   = 4096;		// XXXBAB adjust this
const UINT16 MAX_QUEUE_SIZE = (UINT16)0x7fff;	// XXXGLENN adjust this
const UINT32 MAX_RECVBUF_SIZE = 1000000;

struct RTSPRequireOptions
{
    const char* pcharOption;
    const char* pcharMessagesSupporting;
    UINT32 ulMsgsSupLen;
};

struct RTSPAcceptEncodingOptions
{
    const char* pcharOption;
    const char* pcharMessagesSupporting;
    UINT32 ulMsgsSupLen;
};

struct RTSPTransportMimeType 
{
    RTSPTransportTypeEnum m_lTransportType;
    RTSPTransportSubTypeEnum m_lTransportSubType;
    const char* m_pMimeType;
};

class RTSPMessage;
class RTSPRequestMessage;
class RTSPResponseMessage;
class MIMEHeaderValue;

class RTSPBaseProtocol
{
public:
    RTSPBaseProtocol();
    ~RTSPBaseProtocol();

    enum { RTSP_REQUIRE_ENTITY = 0, RTSP_REQUIRE_LOADTEST,
        m_NumRTSPRequireOptions };
    static const RTSPRequireOptions RTSPRequireOptionsTable[
        m_NumRTSPRequireOptions];

    enum { RTSP_ENCODING_MEI_DESCRIBE = 0, RTSP_ENCODING_MEI_SETUP,
        m_NumRTSPAcceptEncodingOptions };
    static const RTSPAcceptEncodingOptions RTSPAcceptEncodingOptionsTable[
        m_NumRTSPAcceptEncodingOptions];

    BOOL		isRequired
			(
			    RTSPMessage* pRTSPMessageToSearch, 
			    UINT32 ulOptionToFind
			);
protected:

    HX_RESULT 		enqueueMessage(RTSPMessage* pMsg);
    RTSPMessage* 	dequeueMessage(UINT32 seqNo);
    void		clearMessages();
    virtual HX_RESULT	sendRequest(RTSPRequestMessage* pMsg, UINT32 seqNo);
    virtual HX_RESULT	sendRequest(RTSPRequestMessage* pMsg,
				const char* pContent,
				const char* pMimeType, UINT32 seqNo);
    RTSPResponseMessage* makeResponseMessage(UINT32 seqNo, const char* pErrNo);
    HX_RESULT		sendResponse(UINT32 seqNo, const char* pErrNo);
    HX_RESULT		sendResponse(RTSPResponseMessage* pMsg,
		    		const char* pContent = 0,
				const char* pMimeType = 0);
    const char* 	getErrorText(const char* pErrNo);
    void		addRFC822Headers(RTSPMessage* pMsg,
				IHXValues* pRFC822Headers);
    void		getRFC822Headers(RTSPMessage* pMsg,
				REF(IHXValues*) pRFC822Headers);
    HX_RESULT		sendControlMessage(IHXBuffer* pBuffer);
    HX_RESULT		handleACK(IHXPacketResend* pPacketResend,
				RTSPResendBuffer* pResendBuffer,
				UINT16 uStreamNumber,
				UINT16* pAckList, UINT32 uAckListCount,
				UINT16* pNakList, UINT32 uNakListCount,
				BOOL bIgnoreACK);
    RTPInfoEnum		parseRTPInfoHeader(MIMEHeaderValue* pSeqValue,
				UINT16& streamID, UINT16& seqNum,
				UINT32& ulTimestamp, const char*& pControl);
    virtual HX_RESULT	closeSocket() {return HXR_OK;}
    virtual HX_RESULT	reopenSocket() {return HXR_OK;}

    virtual void handleDebug(IHXBuffer* pMsgBuf, BOOL bInbound);
    virtual void handleTiming(IHXBuffer* pMsgBuf, BOOL bInbound);
    virtual void handleSendEvent(RTSPRequestMessage* pReqMsg);
    virtual void handleSendEvent(RTSPResponseMessage* pRespMsg);

    IUnknown*			m_pContext;
    IHXCommonClassFactory*	m_pCommonClassFactory;
    IHXTCPSocket*		m_pSocket;
    IHXBufferedSocket*		m_pFastSocket;
    UINT32			m_uControlBytesSent;
    BOOL			m_bConnectionlessControl;
    IHXBuffer*			m_pControlBuffer;

private:
    CHXSimpleList		m_msgQueue;
};

#endif /* _RTSPBASE_H_ */