/** \fn DVBChannel::GetChanID() const
* \brief Returns Channel ID
* \bug This only works if there is only one input on the card.
*/
int DVBChannel::GetChanID() const
{
int cardid = GetCardID();
MSqlQuery query(MSqlQuery::InitCon());
query.prepare("SELECT chanid "
"FROM channel, cardinput "
"WHERE cardinput.sourceid = channel.sourceid AND "
" channel.channum = :CHANNUM AND "
" cardinput.cardid = :CARDID");
query.bindValue(":CHANNUM", m_curchannelname);
query.bindValue(":CARDID", cardid);
if (!query.exec() || !query.isActive())
{
MythDB::DBError("fetching chanid", query);
return -1;
}
if (query.size() <= 0)
return -1;
query.next();
return query.value(0).toInt();
}
QString DTVChannel::GetSuggestedTuningMode(bool is_live_tv) const
{
uint cardid = GetCardID();
QString input = GetCurrentInput();
uint quickTuning = 0;
if (cardid && !input.isEmpty())
quickTuning = CardUtil::GetQuickTuning(cardid, input);
bool useQuickTuning = (quickTuning && is_live_tv) || (quickTuning > 1);
QMutexLocker locker(&dtvinfo_lock);
if (!useQuickTuning && ((sistandard == "atsc") || (sistandard == "dvb")))
{
QString tmp = sistandard; tmp.detach();
return tmp;
}
return "mpeg";
}
bool DVBChannel::Open(DVBChannel *who)
{
LOG(VB_CHANNEL, LOG_INFO, LOC + "Opening DVB channel");
QMutexLocker locker(&hw_lock);
if (fd_frontend >= 0)
{
is_open[who] = true;
return true;
}
DVBChannel *master = GetMasterLock();
if (master != this)
{
if (!master->Open(who))
{
ReturnMasterLock(master);
return false;
}
fd_frontend = master->fd_frontend;
frontend_name = master->frontend_name;
tunerType = master->tunerType;
capabilities = master->capabilities;
ext_modulations = master->ext_modulations;
frequency_minimum = master->frequency_minimum;
frequency_maximum = master->frequency_maximum;
symbol_rate_minimum = master->symbol_rate_minimum;
symbol_rate_maximum = master->symbol_rate_maximum;
is_open[who] = true;
if (!InitializeInputs())
{
Close();
ReturnMasterLock(master);
return false;
}
ReturnMasterLock(master);
return true;
}
ReturnMasterLock(master); // if we're the master we don't need this lock..
QString devname = CardUtil::GetDeviceName(DVB_DEV_FRONTEND, device);
QByteArray devn = devname.toAscii();
for (int tries = 1; ; ++tries)
{
fd_frontend = open(devn.constData(), O_RDWR | O_NONBLOCK);
if (fd_frontend >= 0)
break;
LOG(VB_GENERAL, LOG_WARNING, LOC +
"Opening DVB frontend device failed." + ENO);
if (tries >= 20 || (errno != EBUSY && errno != EAGAIN))
{
LOG(VB_GENERAL, LOG_ERR, LOC +
QString("Failed to open DVB frontend device due to "
"fatal error or too many attempts."));
return false;
}
usleep(50000);
}
dvb_frontend_info info;
memset(&info, 0, sizeof(info));
if (ioctl(fd_frontend, FE_GET_INFO, &info) < 0)
{
LOG(VB_GENERAL, LOG_ERR, LOC +
"Failed to get frontend information." + ENO);
close(fd_frontend);
fd_frontend = -1;
return false;
}
frontend_name = info.name;
tunerType = info.type;
#if HAVE_FE_CAN_2G_MODULATION
if (tunerType == DTVTunerType::kTunerTypeDVBS1 &&
(info.caps & FE_CAN_2G_MODULATION))
tunerType = DTVTunerType::kTunerTypeDVBS2;
#endif // HAVE_FE_CAN_2G_MODULATION
capabilities = info.caps;
frequency_minimum = info.frequency_min;
frequency_maximum = info.frequency_max;
symbol_rate_minimum = info.symbol_rate_min;
symbol_rate_maximum = info.symbol_rate_max;
LOG(VB_RECORD, LOG_INFO, LOC +
QString("Using DVB card %1, with frontend '%2'.")
.arg(device).arg(frontend_name));
// Turn on the power to the LNB
if (tunerType.IsDiSEqCSupported())
{
diseqc_tree = diseqc_dev.FindTree(GetCardID());
if (diseqc_tree)
diseqc_tree->Open(fd_frontend);
}
dvbcam->Start();
first_tune = true;
if (!InitializeInputs())
{
Close();
return false;
}
if (fd_frontend >= 0)
is_open[who] = true;
return (fd_frontend >= 0);
}