FreeDVDemod::FreeDVStats Struct Reference

Public Member Functions
	FreeDVStats ()
void	init ()
void	collect (struct freedv *freedv)

Public Attributes
bool	m_sync
float	m_snrEst
float	m_clockOffset
float	m_freqOffset
float	m_syncMetric
int	m_totalBitErrors
int	m_lastTotalBitErrors
int	m_ber
	estimated BER (b/s) More...
uint32_t	m_frameCount
uint32_t	m_berFrameCount
	count of frames for BER estimation More...
uint32_t	m_fps
	frames per second More...

Detailed Description

Definition at line 219 of file freedvdemod.h.

Constructor & Destructor Documentation

FreeDVStats()

FreeDVDemod::FreeDVStats::FreeDVStats

(

)

Definition at line 52 of file freedvdemod.cpp.

References init().

{
    init();
}

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Member Function Documentation

collect()

void FreeDVDemod::FreeDVStats::collect

(

struct freedv *

freedv

)

Definition at line 72 of file freedvdemod.cpp.

References m_ber, m_berFrameCount, m_clockOffset, m_fps, m_frameCount, m_freqOffset, m_lastTotalBitErrors, m_snrEst, m_sync, m_syncMetric, and m_totalBitErrors.

Referenced by FreeDVDemod::pushSampleToDV().

{
    struct MODEM_STATS stats;

    freedv_get_modem_extended_stats(freeDV, &stats);
    m_totalBitErrors = freedv_get_total_bit_errors(freeDV);
    m_clockOffset = stats.clock_offset;
    m_freqOffset = stats.foff;
    m_syncMetric = stats.sync_metric;
    m_sync = stats.sync != 0;
    m_snrEst = stats.snr_est;

    if (m_berFrameCount >= m_fps)
    {
        m_ber = m_totalBitErrors - m_lastTotalBitErrors;
        m_ber = m_ber < 0 ? 0 : m_ber;
        m_berFrameCount = 0;
        m_lastTotalBitErrors = m_totalBitErrors;
//        qDebug("FreeDVStats::collect: demod sync: %s sync metric: %f demod snr: %3.2f dB  BER: %d clock offset: %f freq offset: %f",
//            m_sync ? "ok" : "ko", m_syncMetric, m_snrEst, m_ber, m_clockOffset, m_freqOffset);
    }

    m_berFrameCount++;
    m_frameCount++;
}

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init()

void FreeDVDemod::FreeDVStats::init

(

)

Definition at line 57 of file freedvdemod.cpp.

References m_ber, m_berFrameCount, m_clockOffset, m_fps, m_frameCount, m_freqOffset, m_lastTotalBitErrors, m_snrEst, m_sync, m_syncMetric, and m_totalBitErrors.

Referenced by FreeDVDemod::applyFreeDVMode(), and FreeDVStats().

{
    m_sync = false;
    m_snrEst = -20;
    m_clockOffset = 0;
    m_freqOffset = 0;
    m_syncMetric = 0;
    m_totalBitErrors = 0;
    m_lastTotalBitErrors = 0;
    m_ber = 0;
    m_frameCount = 0;
    m_berFrameCount = 0;
    m_fps = 1;
}

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Member Data Documentation

m_ber

int FreeDVDemod::FreeDVStats::m_ber

estimated BER (b/s)

Definition at line 232 of file freedvdemod.h.

Referenced by collect(), FreeDVDemod::getBER(), and init().

m_berFrameCount

uint32_t FreeDVDemod::FreeDVStats::m_berFrameCount

count of frames for BER estimation

Definition at line 234 of file freedvdemod.h.

Referenced by collect(), and init().

m_clockOffset

float FreeDVDemod::FreeDVStats::m_clockOffset

Definition at line 227 of file freedvdemod.h.

Referenced by collect(), and init().

m_fps

uint32_t FreeDVDemod::FreeDVStats::m_fps

frames per second

Definition at line 235 of file freedvdemod.h.

Referenced by FreeDVDemod::applyFreeDVMode(), collect(), and init().

m_frameCount

uint32_t FreeDVDemod::FreeDVStats::m_frameCount

Definition at line 233 of file freedvdemod.h.

Referenced by collect(), and init().

m_freqOffset

float FreeDVDemod::FreeDVStats::m_freqOffset

Definition at line 228 of file freedvdemod.h.

Referenced by collect(), FreeDVDemod::getFrequencyOffset(), and init().

m_lastTotalBitErrors

int FreeDVDemod::FreeDVStats::m_lastTotalBitErrors

Definition at line 231 of file freedvdemod.h.

Referenced by collect(), and init().

m_snrEst

float FreeDVDemod::FreeDVStats::m_snrEst

Definition at line 226 of file freedvdemod.h.

Referenced by collect(), init(), and FreeDVDemod::pushSampleToDV().

m_sync

bool FreeDVDemod::FreeDVStats::m_sync

Definition at line 225 of file freedvdemod.h.

Referenced by collect(), init(), and FreeDVDemod::isSync().

m_syncMetric

float FreeDVDemod::FreeDVStats::m_syncMetric

Definition at line 229 of file freedvdemod.h.

Referenced by collect(), and init().

m_totalBitErrors

int FreeDVDemod::FreeDVStats::m_totalBitErrors

Definition at line 230 of file freedvdemod.h.

Referenced by collect(), and init().

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The documentation for this struct was generated from the following files:

• plugins/channelrx/demodfreedv/freedvdemod.h
• plugins/channelrx/demodfreedv/freedvdemod.cpp