rtspmdsc.cpp
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上传日期:2007-06-06
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- /* ***** 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 ***** */
- //#include "hlxclib/stdlib.h"
- //#include "hlxclib/stdio.h"
- #include "hxtypes.h"
- #include "hxcom.h"
- #include "ihxpckts.h"
- #include "hxstrutl.h"
- #include "chxpckts.h"
- #include "rtsputil.h"
- #include "cbqueue.h"
- #include "hxslist.h"
- #include "looseprs.h"
- #include "rtspprop.h"
- #include "mhprop.h"
- #include "rtspmdsc.h"
- #include "hxheap.h"
- #ifdef _DEBUG
- #undef HX_THIS_FILE
- static const char HX_THIS_FILE[] = __FILE__;
- #endif
- RTSPMediaDesc::RTSPMediaDesc():
- m_pFileHeader(0)
- {
- m_streams = new CHXSimpleList;
- }
- RTSPMediaDesc::~RTSPMediaDesc()
- {
- delete m_pFileHeader;
- clearStreamList();
- delete m_streams;
- }
- HX_RESULT
- RTSPMediaDesc::fromExternalRep(char* pData)
- {
- XMLParser parser;
- XMLTag* pTag = 0;
- CByteQueue* pQueue = new CByteQueue(strlen(pData));
- BOOL inMediaHeader = FALSE;
- BOOL inMediaStream = FALSE;
- HX_RESULT hresult = HXR_OK;
- RTSPPropertyList* pMediaHeader = 0;
- RTSPPropertyList* pMediaStream = 0;
- pQueue->EnQueue(pData, strlen(pData));
- for(;;)
- {
- UINT32 bytesUsed;
- UINT32 bytesAvail = pQueue->GetQueuedItemCount();
- if(bytesAvail <= 0)
- {
- break;
- }
- BYTE* pBuf = new BYTE[bytesAvail];
- BYTE* p = pBuf;
- HX_ASSERT(bytesAvail == (UINT16)bytesAvail);
- pQueue->DeQueue(pBuf, (UINT16)bytesAvail);
- bytesUsed = bytesAvail;
- if(pTag)
- {
- delete pTag;
- pTag = 0;
- }
- XMLParseResult rc = parser.Parse((const char*&)p, bytesAvail, pTag);
- HX_ASSERT(bytesAvail == (UINT16)bytesAvail);
- pQueue->EnQueue(p, (UINT16)bytesAvail - (p - pBuf));
- switch(rc)
- {
- case XMLPTag:
- {
- switch(pTag->m_type)
- {
- case XMLPlainTag:
- {
- if(strcasecmp(pTag->m_name, "MediaHeader") == 0)
- {
- if(inMediaHeader)
- {
- //XXXBAB parse error
- }
- if(pMediaHeader)
- {
- delete pMediaHeader;
- }
- pMediaHeader = new RTSPPropertyList;
- inMediaHeader = TRUE;
- inMediaStream = FALSE;
- }
- else if(strcasecmp(pTag->m_name, "MediaStream") == 0)
- {
- if(inMediaStream)
- {
- //XXXBAB parse error
- }
- pMediaStream = new RTSPPropertyList;
- inMediaHeader = FALSE;
- inMediaStream = TRUE;
- }
- else
- {
- RTSPProperty* pProp = makeProperty(pTag);
- if(pProp)
- {
- if(inMediaHeader)
- {
- pMediaHeader->addProperty(pProp);
- }
- else if(inMediaStream)
- {
- pMediaStream->addProperty(pProp);
- }
- }
- }
- }
- break;
- case XMLEndTag:
- {
- if(strcasecmp(pTag->m_name, "MediaHeader") == 0)
- {
- if(inMediaHeader)
- {
- m_pFileHeader = pMediaHeader;
- }
- else
- {
- // error
- }
- inMediaHeader = FALSE;
- }
- else if(strcasecmp(pTag->m_name, "MediaStream") == 0)
- {
- if(inMediaStream)
- {
- m_streams->AddTail(pMediaStream);
- }
- else
- {
- // error
- }
- inMediaStream = FALSE;
- }
- }
- break;
- default:
- {
- // unexpected
- }
- break;
- }
- }
- break;
- case XMLPPlainText:
- {
- // unexpected
- }
- break;
- case XMLPComment:
- {
- // oh, yeah?
- }
- break;
- default:
- {
- // unexpected
- }
- break;
- }
- delete[] pBuf;
- }
- if(pTag)
- {
- delete pTag;
- }
- delete pQueue;
- return hresult;
- }
-
- HX_RESULT
- RTSPMediaDesc::toExternalRep(char *pBuf)
- {
- CHXString mDesc = toExternalRep();
- strcpy(pBuf, mDesc);
- return HXR_OK;
- }
- CHXString
- RTSPMediaDesc::toExternalRep()
- {
- CHXString mDesc;
-
- mDesc = "<MediaDescription>rn";
-
- if(m_pFileHeader)
- {
- mDesc += " <MediaHeader>rn";
- RTSPProperty* pProp = m_pFileHeader->getFirstProperty();
- while(pProp)
- {
- mDesc += " " + pProp->asString() + "rn";
- pProp = m_pFileHeader->getNextProperty();
- }
- mDesc += " </MediaHeader>rn";
- }
- CHXSimpleList::Iterator i;
- for (i = m_streams->Begin();
- i != m_streams->End();
- ++i)
- {
- RTSPPropertyList* pStream = (RTSPPropertyList*)*i;
- if(pStream)
- {
- mDesc += " <MediaStream>rn";
- RTSPProperty* pProp = pStream->getFirstProperty();
- while(pProp)
- {
- mDesc += " " + pProp->asString() + "rn";
- pProp = pStream->getNextProperty();
- }
- mDesc += " </MediaStream>rn";
- }
- }
- mDesc += "</MediaDescription>rn";
- return mDesc;
- }
- RTSPPropertyList*
- RTSPMediaDesc::getFirstStream()
- {
- m_listPos = m_streams->GetHeadPosition();
- if(m_listPos)
- {
- RTSPPropertyList* pStream =
- (RTSPPropertyList*)m_streams->GetNext(m_listPos);
- return pStream;
- }
- return 0;
- }
- RTSPPropertyList*
- RTSPMediaDesc::getNextStream()
- {
- RTSPPropertyList* pStream = 0;
- if(m_listPos)
- {
- pStream = (RTSPPropertyList*)m_streams->GetNext(m_listPos);
- }
- return pStream;
- }
- CHXSimpleList*
- RTSPMediaDesc::getStreamList()
- {
- return m_streams;
- }
- void
- RTSPMediaDesc::addStream(RTSPPropertyList* pStream)
- {
- m_streams->AddTail(pStream);
- }
- void
- RTSPMediaDesc::addHeader(RTSPPropertyList* pHeader)
- {
- m_pFileHeader = pHeader;
- }
- RTSPPropertyList*
- RTSPMediaDesc::getFileHeader()
- {
- return m_pFileHeader;
- }
- void
- RTSPMediaDesc::clearStreamList()
- {
- LISTPOSITION pos = m_streams->GetHeadPosition();
- while(pos)
- {
- RTSPPropertyList* pStream = (RTSPPropertyList*)m_streams->GetNext(pos);
- delete pStream;
- }
- m_streams->RemoveAll();
- }
- RTSPProperty*
- RTSPMediaDesc::makeProperty(XMLTag* pTag)
- {
- const char* pDataName = pTag->m_name;
- const char* pDataType = pTag->get_attribute("type");
- if(pDataType)
- {
- const char* pDataValue = pTag->get_attribute("value");
- if(strcasecmp(pDataType, "integer") == 0)
- {
- INT32 dataValue = strtol(pDataValue, 0, 10);
- return new MHIntegerProperty(pDataName, dataValue);
- }
- else if(strcasecmp(pDataType, "string") == 0)
- {
- return new MHStringProperty(pDataName, pDataValue);
- }
- else if(strcasecmp(pDataType, "buffer") == 0)
- {
- char* pTmpBuf = new char[strlen(pDataValue)];
- UINT32 dataLen = BinFrom64(pDataValue,
- strlen(pDataValue), (BYTE*)pTmpBuf);
- CHXBuffer* pBuffer = new CHXBuffer;
- pBuffer->AddRef();
- pBuffer->Set((BYTE*)pTmpBuf, dataLen);
- RTSPBufferProperty* pProp =
- new MHBufferProperty(pDataName, pBuffer);
- pBuffer->Release();
- delete[] pTmpBuf;
- return pProp;
- }
- }
- return 0;
- }