jadaptationfield.cpp
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/***************************************************************************
* Copyright (C) 2005 by Jeff Ferr *
* root@sat *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "Stdafx.h"
#include "jadaptationfield.h"
namespace jmpeg {
AdaptationField::AdaptationField(uint8_t *data, uint32_t size)
{
_data = data;
_size = size;
}
AdaptationField::~AdaptationField()
{
}
uint32_t AdaptationField::GetLength()
{
return _data[0];
}
uint32_t AdaptationField::GetDiscontinuityIndicator()
{
// if Length > 0
return _data[1] & 0x80;
}
uint32_t AdaptationField::GetRandomAccessIndicator()
{
// if Length > 0
return _data[1] & 0x40;
}
uint32_t AdaptationField::GetElementaryStreamPriorityIndicator()
{
// if Length > 0
return _data[1] & 0x20;
}
uint32_t AdaptationField::GetPCRFlag()
{
// if Length > 0
return _data[1] & 0x10;
}
uint32_t AdaptationField::GetOPCRFlag()
{
// if Length > 0
return _data[1] & 0x08;
}
uint32_t AdaptationField::GetSplicingPointFlag()
{
// if Length > 0
return _data[1] & 0x04;
}
uint32_t AdaptationField::GetPrivateDataFlag()
{
// if Length > 0
return _data[1] & 0x02;
}
uint32_t AdaptationField::GetAdaptationFieldExtensionFlag()
{
// if Length > 0
return _data[1] & 0x01;
}
uint64_t AdaptationField::GetPCRBase()
{
// if PCRFlag = 1
return (uint64_t)((_data[2] << 25) | (_data[3] << 17) | (_data[4] << 9) | (_data[5] << 1) | (_data[6] >> 7));
}
uint32_t AdaptationField::GetPCRExtension()
{
// if PCRFlag = 1
return (_data[6] & 0x1) << 8 | _data[7];
}
uint32_t AdaptationField::GetOriginalPCRBase()
{
// if OPCRFlag = 1
int offset = 2;
if (GetPCRFlag() == 1) {
offset = offset + 6;
}
return (uint64_t)((_data[offset] << 25) | (_data[offset+1] << 17) | (_data[offset+2] << 9) | (_data[offset+3] << 1) | (_data[offset+4] >> 7));
}
uint32_t AdaptationField::GetOriginalPCRExtension()
{
// if OPCRFlag = 1
int offset = 6;
if (GetPCRFlag() == 1) {
offset = offset + 6;
}
return (_data[offset] & 0x1) << 8 | _data[offset];
}
uint32_t AdaptationField::GetSpliceCountdown()
{
return 0;
}
uint32_t AdaptationField::GetTransportPrivateDataLength()
{
return 0;
}
void AdaptationField::GetPrivateData(uint8_t *data, uint32_t size)
{
}
uint32_t AdaptationField::GetAdaptationFieldExtensionLength()
{
return 0;
}
uint32_t AdaptationField::GetLTWFlag()
{
return 0;
}
uint32_t AdaptationField::GetPiecewiseRateFlag()
{
return 0;
}
uint32_t AdaptationField::GetLTWValidFlag()
{
return 0;
}
uint32_t AdaptationField::GetLTWOffset()
{
return 0;
}
uint32_t AdaptationField::GetPiecewiseRate()
{
return 0;
}
}