140 lines
4 KiB
C
140 lines
4 KiB
C
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/*
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* Copyright (c) 1999-2008 Apple Inc. All Rights Reserved.
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*
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*/
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/*
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File: SDPUtils.h
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Contains: Some static routines for dealing with SDPs
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*/
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#ifndef __SDPUtilsH__
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#define __SDPUtilsH__
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#include "OS.h"
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#include "StrPtrLen.h"
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#include "ResizeableStringFormatter.h"
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#include "StringParser.h"
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#include "OSMemory.h"
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class SDPLine : public StrPtrLen
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{
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public:
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SDPLine() {}
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virtual ~SDPLine() {}
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char GetHeaderType() {if (Ptr && Len) return this->Ptr[0]; return 0;}
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};
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class SDPContainer
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{
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enum { kBaseLines = 20, kLineTypeArraySize = 256};
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enum {
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kVPos = 0,
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kSPos,
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kTPos,
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kOPos
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};
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enum {
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kV = 1 << kVPos,
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kS = 1 << kSPos,
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kT = 1 << kTPos,
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kO = 1 << kOPos,
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kAllReq = kV | kS | kT | kO
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};
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public:
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SDPContainer(UInt32 numStrPtrs = SDPContainer::kBaseLines) :
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fNumSDPLines(numStrPtrs),
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fSDPLineArray(NULL)
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{
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Initialize();
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}
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~SDPContainer() {delete [] fSDPLineArray;}
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void Initialize();
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SInt32 AddHeaderLine (StrPtrLen *theLinePtr);
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SInt32 FindHeaderLineType(char id, SInt32 start);
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SDPLine* GetNextLine();
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SDPLine* GetLine(SInt32 lineIndex);
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void SetLine(SInt32 index);
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void Parse();
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Bool16 SetSDPBuffer(char *sdpBuffer);
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Bool16 SetSDPBuffer(StrPtrLen *sdpBufferPtr);
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Bool16 IsSDPBufferValid() {return fValid;}
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Bool16 HasReqLines() { return (Bool16) (fReqLines == kAllReq) ; }
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Bool16 HasLineType( char lineType ) { return (Bool16) (lineType == fFieldStr[ (UInt8) lineType]) ; }
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char* GetReqLinesArray;
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void PrintLine(SInt32 lineIndex);
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void PrintAllLines();
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SInt32 GetNumLines() { return fNumUsedLines; }
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SInt32 fCurrentLine;
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SInt32 fNumSDPLines;
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SInt32 fNumUsedLines;
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SDPLine* fSDPLineArray;
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Bool16 fValid;
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StrPtrLen fSDPBuffer;
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UInt16 fReqLines;
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char fFieldStr[kLineTypeArraySize]; //
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char* fLineSearchTypeArray;
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};
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class SDPLineSorter {
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public:
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SDPLineSorter(): fSessionLineCount(0),fSDPSessionHeaders(NULL,0), fSDPMediaHeaders(NULL,0) {};
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SDPLineSorter(SDPContainer *rawSDPContainerPtr, Float32 adjustMediaBandwidthPercent = 1.0, SDPContainer *insertMediaLinesArray = NULL);
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StrPtrLen* GetSessionHeaders() { return &fSessionHeaders; }
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StrPtrLen* GetMediaHeaders() { return &fMediaHeaders; }
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char* GetSortedSDPCopy();
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Bool16 ValidateSessionHeader(StrPtrLen *theHeaderLinePtr);
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StrPtrLen fullSDPBuffSPL;
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SInt32 fSessionLineCount;
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SDPContainer fSessionSDPContainer;
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ResizeableStringFormatter fSDPSessionHeaders;
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ResizeableStringFormatter fSDPMediaHeaders;
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StrPtrLen fSessionHeaders;
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StrPtrLen fMediaHeaders;
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static char sSessionOrderedLines[];// = "vosiuepcbtrzka"; // chars are order dependent: declared by rfc 2327
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static char sessionSingleLines[];// = "vosiuepcbzk"; // return only 1 of each of these session field types
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static StrPtrLen sEOL;
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static StrPtrLen sMaxBandwidthTag;
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};
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#endif
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