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getservices: fix FindChannelFuzzy()

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* for services with duplicate tsid/onid/sid, not all channels were found
  (function returned NULL if the first match was not the correct one)
* add compatibility with "wrong" ubouquets.xml for non-sat boxes: the
  position parameter was ignored before and is not too useful outside
  sat anyway
This commit is contained in:
Stefan Seyfried
2013-01-31 14:26:16 +01:00
parent 7e701bfefc
commit e2c99cd24b
1 changed files with 18 additions and 6 deletions
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24
src/zapit/src/getservices.cpp
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@@ -223,15 +223,27 @@ CZapitChannel * CServiceManager::FindChannel48(const t_channel_id channel_id)
return NULL;
}
/* TODO: those FindChannel* functions are naive at best. By using a different construction
* scheme for the channel_id,they could easily be made much more efficient. Side effects would
* need to be checked first, though */
CZapitChannel* CServiceManager::FindChannelFuzzy(const t_channel_id channel_id,
const t_satellite_position pos, const freq_id_t freq)
{
CZapitChannel *ret;
ret = FindChannel48(channel_id);
if (!ret || !(pos == ret->getSatellitePosition()))
return NULL;
if (abs((int)ret->getFreqId() - (int)freq) < 3)
return ret;
for (channel_map_iterator_t it = allchans.begin(); it != allchans.end(); ++it) {
CZapitChannel *ret = &it->second;
if ((ret->getChannelID() & 0xFFFFFFFFFFFFULL) != (channel_id & 0xFFFFFFFFFFFFULL))
continue;
/* use position only on SAT boxes.
* Cable/terr does not need thix: There usually is no second cable provider
* to choose from and people are wondering why their ubouquets are no longer
* working => because they had the wrong 's="x"' attribute.
* TODO: think about mixed-mode (sat/cable/terrestrial) operation */
if (frontendType == FE_QPSK && pos != ret->getSatellitePosition())
continue;
/* match +-2MHz to make old ubouquets work with updated satellites.xml */
if (abs((int)ret->getFreqId() - (int)freq) < 3)
return ret;
}
return NULL;
}