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#include <lib/dvb/esection.h>
#include <lib/base/eerror.h>
void eGTable::sectionRead(const __u8 *d)
{
unsigned int last_section_number = d[7];
m_table.flags &= ~eDVBTableSpec::tfAnyVersion;
m_table.flags |= eDVBTableSpec::tfThisVersion;
m_table.version = (d[5]>>1)&0x1F;
/* if a section is missing, we retry reading the
whole data up to 5 times. if after that the
section is still missing, we timeout. */
if (m_tries > 5 * (last_section_number+1))
{
timeout();
return;
}
m_tries++;
if (createTable(d[6], d, last_section_number + 1))
{
if (m_timeout)
m_timeout->stop();
if (m_reader)
{
m_reader->stop();
m_reader=0;
}
m_sectionRead_conn=0;
ready = 1;
tableReady(error);
} else if ((m_table.flags & eDVBTableSpec::tfHaveTimeout) && m_timeout)
m_timeout->start(m_table.timeout, 1); // reset timeout
}
void eGTable::timeout()
{
TABLE_eDebug("timeout %04x!", m_table.pid);
if (m_reader)
{
m_reader->stop();
m_reader=0;
}
m_sectionRead_conn=0;
ready = 1;
error = -1;
tableReady(error);
}
eGTable::eGTable(bool debug):
m_debug(debug), error(0)
{
}
DEFINE_REF(eGTable);
RESULT eGTable::start(iDVBSectionReader *reader, const eDVBTableSpec &table)
{
RESULT res;
m_table = table;
m_reader = reader;
m_reader->connectRead(slot(*this, &eGTable::sectionRead), m_sectionRead_conn);
m_tries = 0;
// setup filter struct
eDVBSectionFilterMask mask;
memset(&mask, 0, sizeof(mask));
mask.pid = m_table.pid;
mask.flags = 0;
if (m_table.flags & eDVBTableSpec::tfCheckCRC)
mask.flags |= eDVBSectionFilterMask::rfCRC;
if (m_table.flags & eDVBTableSpec::tfHaveTID)
{
mask.data[0] = m_table.tid;
if (m_table.flags & eDVBTableSpec::tfHaveTIDMask)
mask.mask[0] = m_table.tid_mask;
else
mask.mask[0] = 0xFF;
}
if (m_table.flags & eDVBTableSpec::tfHaveTIDExt)
{
mask.data[1] = m_table.tidext >> 8;
mask.data[2] = m_table.tidext;
if (m_table.flags & eDVBTableSpec::tfHaveTIDExtMask)
{
mask.mask[1] = m_table.tidext_mask >> 8;
mask.mask[2] = m_table.tidext_mask;
}
else
{
mask.mask[1] = 0xFF;
mask.mask[2] = 0xFF;
}
}
if (!(m_table.flags & eDVBTableSpec::tfAnyVersion))
{
TABLE_eDebug("doing version filtering");
mask.data[3] |= (m_table.version << 1)|1;
mask.mask[3] |= 0x3f;
if (!(m_table.flags & eDVBTableSpec::tfThisVersion))
mask.mode[3] |= 0x3e; // negative filtering
} else
TABLE_eDebug("no version filtering");
TABLE_eDebug("%04x: %02x %02x %02x %02x %02x %02x",
mask.pid,
mask.data[0], mask.data[1], mask.data[2],
mask.data[3], mask.data[4], mask.data[5]);
TABLE_eDebug("mask: %02x %02x %02x %02x %02x %02x",
mask.mask[0], mask.mask[1], mask.mask[2],
mask.mask[3], mask.mask[4], mask.mask[5]);
TABLE_eDebug("mode: %02x %02x %02x %02x %02x %02x",
mask.mode[0], mask.mode[1], mask.mode[2],
mask.mode[3], mask.mode[4], mask.mode[5]);
if ((res = m_reader->start(mask)))
{
TABLE_eDebug("reader failed to start.");
return res;
}
if (m_table.flags & eDVBTableSpec::tfHaveTimeout)
{
m_timeout = eTimer::create(eApp);
m_timeout->start(m_table.timeout, 1); // begin timeout
CONNECT(m_timeout->timeout, eGTable::timeout);
}
return 0;
}
RESULT eGTable::start(iDVBDemux *demux, const eDVBTableSpec &table)
{
int res;
ePtr<iDVBSectionReader> reader;
res = demux->createSectionReader(eApp, reader);
if (res)
return res;
return start(reader, table);
}
eGTable::~eGTable()
{
}
void eAUGTable::slotTableReady(int error)
{
getNext(error);
}
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