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