C++ (Cpp) dvbparams_to_dtvmultiplex Examples

Example #1

File: dvbchannel.cpp Project: jbean42/mythtv

/** \fn DVBChannel::ProbeTuningParams(DTVMultiplex&) const
 *  \brief Fetches DTVMultiplex params from driver
 *
 *   Note: Only updates tuning on success.
 *
 *  \return true on success, false on failure
 */
bool DVBChannel::ProbeTuningParams(DTVMultiplex &tuning) const
{
    QMutexLocker locker(&hw_lock);

    if (fd_frontend < 0)
    {
        LOG(VB_GENERAL, LOG_ERR, LOC + "Card not open!");

        return false;
    }

    const DVBChannel *master = GetMasterLock();
    if (master != this)
    {
        bool ok = master->ProbeTuningParams(tuning);
        ReturnMasterLock(master);
        return ok;
    }
    ReturnMasterLock(master); // if we're the master we don't need this lock..

    if (diseqc_tree)
    {
        // TODO We need to implement the inverse of
        // lnb->GetIntermediateFrequency() for ProbeTuningParams()
        // to accurately reflect the frequency before LNB transform.
        return false;
    }

    if (tunerType == DTVTunerType::kTunerTypeDVBS2)
    {
        // TODO implement probing of tuning parameters with FE_GET_PROPERTY
        return false;
    }

    dvb_frontend_parameters params;
    if (ioctl(fd_frontend, FE_GET_FRONTEND, &params) < 0)
    {
        LOG(VB_GENERAL, LOG_ERR, LOC +
            "Getting Frontend tuning parameters failed." + ENO);

        return false;
    }

    uint    mplex      = tuning.mplex;
    QString sistandard = tuning.sistandard; sistandard.detach();

    tuning = dvbparams_to_dtvmultiplex(tunerType, params);

    tuning.mplex       = mplex;
    tuning.sistandard  = sistandard;

    return true;
}

Example #2

/** \fn DVBChannel::ProbeTuningParams(DTVMultiplex&) const
 *  \brief Fetches DTVMultiplex params from driver
 *
 *   Note: Only updates tuning on success.
 *
 *  \return true on success, false on failure
 */
bool DVBChannel::ProbeTuningParams(DTVMultiplex &tuning) const
{
    QMutexLocker locker(&hw_lock);

    if (fd_frontend < 0)
    {
        VERBOSE(VB_IMPORTANT, LOC_ERR + "Card not open!");

        return false;
    }

    if (master)
        return master->ProbeTuningParams(tuning);

    if (diseqc_tree)
    {
        // TODO We need to implement the inverse of
        // lnb->GetIntermediateFrequency() for ProbeTuningParams()
        // to accurately reflect the frequency before LNB transform.
        return false;
    }

    if (tunerType == DTVTunerType::kTunerTypeDVBS2)
    {
        // TODO implement probing of tuning parameters with FE_GET_PROPERTY
        return false;
    }

    dvb_frontend_parameters params;
    if (ioctl(fd_frontend, FE_GET_FRONTEND, &params) < 0)
    {
        VERBOSE(VB_IMPORTANT, LOC_ERR +
                "Getting Frontend tuning parameters failed." + ENO);

        return false;
    }

    uint    mplex      = tuning.mplex;
    QString sistandard = tuning.sistandard;
    sistandard.detach();

    tuning = dvbparams_to_dtvmultiplex(tunerType, params);

    tuning.mplex       = mplex;
    tuning.sistandard  = sistandard;

    return true;
}