static void
setup_peak_filter (GstIirEqualizer * equ, GstIirEqualizerBand * band)
{
g_return_if_fail (GST_AUDIO_FILTER (equ)->format.rate);
{
gdouble gain, omega, bw;
gdouble alpha, alpha1, alpha2, b0;
gain = arg_to_scale (band->gain);
omega = calculate_omega (band->freq, GST_AUDIO_FILTER (equ)->format.rate);
bw = calculate_bw (band, GST_AUDIO_FILTER (equ)->format.rate);
if (bw == 0.0)
goto out;
alpha = tan (bw / 2.0);
alpha1 = alpha * gain;
alpha2 = alpha / gain;
b0 = (1.0 + alpha2);
band->a0 = (1.0 + alpha1) / b0;
band->a1 = (-2.0 * cos (omega)) / b0;
band->a2 = (1.0 - alpha1) / b0;
band->b1 = (2.0 * cos (omega)) / b0;
band->b2 = -(1.0 - alpha2) / b0;
out:
GST_INFO
("gain = %5.1f, width= %7.2f, freq = %7.2f, a0 = %7.5g, a1 = %7.5g, a2=%7.5g b1 = %7.5g, b2 = %7.5g",
band->gain, band->width, band->freq, band->a0, band->a1, band->a2,
band->b1, band->b2);
}
}
// Draw this UE.
void draw() {
// Fixed fields (rnti, type, ueid) won't change during lifetime of UE entry.
// Calculate bw now.
double UL_bw = calculate_bw(&ul_time_start_,
&ul_time_stop_,
ul_bytes_);
double DL_bw = calculate_bw(&dl_time_start_,
&dl_time_stop_,
dl_bytes_);
// Set columns with current values.
setText(col_ul_frames_, QString::number(ul_frames_));
setText(col_ul_bytes_, QString::number(ul_bytes_));
setText(col_ul_mb_s_, QString::number(UL_bw));
setData(col_ul_padding_percent_, Qt::UserRole,
QVariant::fromValue<double>(ul_raw_bytes_ ?
(((double)ul_padding_bytes_ / (double)ul_raw_bytes_) * 100.0) :
0.0));
setText(col_ul_retx_, QString::number(ul_retx_));
setText(col_dl_frames_, QString::number(dl_frames_));
setText(col_dl_bytes_, QString::number(dl_bytes_));
setText(col_dl_mb_s_, QString::number(DL_bw));
setData(col_dl_padding_percent_, Qt::UserRole,
QVariant::fromValue<double>(dl_raw_bytes_ ?
(((double)dl_padding_bytes_ / (double)dl_raw_bytes_) * 100.0) :
0.0));
setText(col_dl_crc_failed_, QString::number(dl_crc_failed_));
setText(col_dl_retx_, QString::number(dl_retx_));
// Draw child items with per-channel counts.
ul_frames_item_->draw();
ul_bytes_item_->draw();
dl_frames_item_->draw();
dl_bytes_item_->draw();
}
// Return the UE-specific fields.
QList<QVariant> rowData() const
{
QList<QVariant> row_data;
// Key fields
row_data << rnti_ << (type_ == C_RNTI ? QObject::tr("C-RNTI") : QObject::tr("SPS-RNTI")) << ueid_;
// UL
row_data << ul_frames_ << ul_bytes_
<< calculate_bw(&ul_time_start_, &ul_time_stop_, ul_bytes_)
<< QVariant::fromValue<double>(ul_raw_bytes_ ?
(((double)ul_padding_bytes_ / (double)ul_raw_bytes_) * 100.0) :
0.0)
<< ul_retx_;
// DL
row_data << dl_frames_ << dl_bytes_
<< calculate_bw(&dl_time_start_, &dl_time_stop_, dl_bytes_)
<< QVariant::fromValue<double>(dl_raw_bytes_ ?
(((double)dl_padding_bytes_ / (double)dl_raw_bytes_) * 100.0) :
0.0)
<< dl_crc_failed_ << dl_retx_;
return row_data;
}
static void
setup_high_shelf_filter (GstIirEqualizer * equ, GstIirEqualizerBand * band)
{
gint rate = GST_AUDIO_FILTER_RATE (equ);
g_return_if_fail (rate);
{
gdouble gain, omega, bw;
gdouble alpha, delta, b0;
gdouble egp, egm;
gain = arg_to_scale (band->gain);
omega = calculate_omega (band->freq, rate);
bw = calculate_bw (band, rate);
if (bw == 0.0)
goto out;
egm = gain - 1.0;
egp = gain + 1.0;
alpha = tan (bw / 2.0);
delta = 2.0 * sqrt (gain) * alpha;
b0 = egp - egm * cos (omega) + delta;
band->a0 = ((egp + egm * cos (omega) + delta) * gain) / b0;
band->a1 = ((egm + egp * cos (omega)) * -2.0 * gain) / b0;
band->a2 = ((egp + egm * cos (omega) - delta) * gain) / b0;
band->b1 = ((egm - egp * cos (omega)) * -2.0) / b0;
band->b2 = -((egp - egm * cos (omega) - delta)) / b0;
out:
GST_INFO
("gain = %5.1f, width= %7.2f, freq = %7.2f, a0 = %7.5g, a1 = %7.5g, a2=%7.5g b1 = %7.5g, b2 = %7.5g",
band->gain, band->width, band->freq, band->a0, band->a1, band->a2,
band->b1, band->b2);
}
}