コード例 #1
0
ファイル: dvbchannel.cpp プロジェクト: drescherjm/mythtv
/** \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();
}
コード例 #2
0
ファイル: dtvchannel.cpp プロジェクト: Saner2oo2/mythtv
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";
}
コード例 #3
0
ファイル: dvbchannel.cpp プロジェクト: jbean42/mythtv
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);
}