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/*
* $Id$
*
* (C) 2002-2003 Andreas Oberritter <obi@saftware.de>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <lib/dvb_si/descriptor_tag.h>
#include <lib/dvb_si/capmt.h>
CaLengthField::CaLengthField(const uint64_t length)
{
if (length < 0x80) {
sizeIndicator = 0;
lengthValue = length;
}
else {
uint64_t mask = 0xFF;
sizeIndicator = 1;
lengthFieldSize = 1;
while ((length & mask) != length) {
lengthFieldSize++;
mask = ((uint64_t)(mask << 8)) | ((uint64_t)0xFFULL);
}
for (uint8_t i = lengthFieldSize; i > 0; i--)
lengthValueByte.push_back((length >> ((i - 1) << 3)) & 0xFF);
}
}
CaElementaryStreamInfo::CaElementaryStreamInfo(const ElementaryStreamInfo * const info, const uint8_t cmdId)
{
streamType = info->streamType;
reserved1 = info->reserved1;
elementaryPid = info->elementaryPid;
reserved2 = info->reserved2;
esInfoLength = 0;
for (DescriptorConstIterator i = info->getDescriptors()->begin(); i != info->getDescriptors()->end(); ++i)
if ((*i)->getTag() == CA_DESCRIPTOR) {
descriptors.push_back(new CaDescriptor(*(CaDescriptor *)*i));
esInfoLength += (*i)->getLength() + 2;
}
if (esInfoLength) {
caPmtCmdId = cmdId;
esInfoLength++;
}
}
CaElementaryStreamInfo::~CaElementaryStreamInfo(void)
{
for (CaDescriptorIterator i = descriptors.begin(); i != descriptors.end(); ++i)
delete *i;
}
uint16_t CaElementaryStreamInfo::getLength(void) const
{
return esInfoLength + 5;
}
CaProgramMapTable::CaProgramMapTable(const ProgramMapTable * const pmt, const uint8_t listManagement, const uint8_t cmdId)
{
uint64_t length = 6;
caPmtTag = 0x9F80C3;
caPmtListManagement = listManagement;
programNumber = pmt->tableIdExtension;
reserved1 = pmt->reserved3;
versionNumber = pmt->versionNumber;
currentNextIndicator = pmt->currentNextIndicator;
reserved2 = pmt->reserved5;
programInfoLength = 0;
for (DescriptorConstIterator i = pmt->getDescriptors()->begin(); i != pmt->getDescriptors()->end(); ++i)
if ((*i)->getTag() == CA_DESCRIPTOR) {
descriptors.push_back(new CaDescriptor(*(CaDescriptor *)*i));
programInfoLength += (*i)->getLength() + 2;
}
if (programInfoLength) {
caPmtCmdId = cmdId;
programInfoLength++;
length += programInfoLength;
}
for (ElementaryStreamInfoConstIterator i = pmt->esInfo.begin(); i != pmt->esInfo.end(); ++i) {
CaElementaryStreamInfo *info = new CaElementaryStreamInfo(*i, cmdId);
esInfo.push_back(info);
length += info->getLength();
}
lengthField = new CaLengthField(length);
}
CaProgramMapTable::~CaProgramMapTable(void)
{
for (CaDescriptorIterator i = descriptors.begin(); i != descriptors.end(); ++i)
delete *i;
for (CaElementaryStreamInfoIterator i = esInfo.begin(); i != esInfo.end(); ++i)
delete *i;
delete lengthField;
}
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