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sdrangel/plugins/samplemimo/audiocatsiso/audiocatoutputworker.cpp

170 lines
5.4 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2020, 2023 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#include <QTimer>
#include <QDebug>
#include "dsp/samplemofifo.h"
#include "dsp/samplesourcefifo.h"
#include "audio/audiofifo.h"
#include "util/db.h"
#include "audiocatoutputworker.h"
#define AUDIOOUTPUT_THROTTLE_MS 50
AudioCATOutputWorker::AudioCATOutputWorker(SampleMOFifo* sampleFifo, AudioFifo *fifo, QObject* parent) :
QObject(parent),
m_running(false),
m_samplerate(0),
m_volume(1.0f),
m_throttlems(AUDIOOUTPUT_THROTTLE_MS),
m_maxThrottlems(50),
m_throttleToggle(false),
m_iqMapping(AudioCATSISOSettings::IQMapping::LR),
m_buf(nullptr),
m_samplesChunkSize(0),
m_sampleFifo(sampleFifo),
m_audioFifo(fifo)
{
m_audioBuffer.resize(1<<15);
m_audioBufferFill = 0;
setSamplerate(48000);
}
AudioCATOutputWorker::~AudioCATOutputWorker()
{
}
void AudioCATOutputWorker::startWork()
{
qDebug("AudioCATOutputWorker::startWork");
m_running = true;
}
void AudioCATOutputWorker::stopWork()
{
qDebug("AudioCATOutputWorker::stopWork");
m_running = false;
}
void AudioCATOutputWorker::connectTimer(const QTimer& timer)
{
qDebug() << "AudioCATOutputWorker::connectTimer";
connect(&timer, SIGNAL(timeout()), this, SLOT(tick()));
}
void AudioCATOutputWorker::setSamplerate(int samplerate)
{
if (samplerate != m_samplerate)
{
bool wasRunning = false;
if (m_running)
{
stopWork();
wasRunning = true;
}
// resize sample FIFO
if (m_sampleFifo) {
m_sampleFifo->init(1, SampleSourceFifo::getSizePolicy(samplerate)); // 1s buffer
}
qDebug() << "AudioCATOutputWorker::setSamplerate:"
<< " new:" << samplerate
<< " old:" << m_samplerate
<< " m_sampleFifo size:" << SampleSourceFifo::getSizePolicy(samplerate)
<< " m_audioFifo size:" << m_audioFifo->size()
<< " sample i/q size" << sizeof(FixReal);
// resize output buffer
if (m_buf) {
delete[] m_buf;
}
m_buf = new int16_t[samplerate*2];
m_samplerate = samplerate;
m_samplesChunkSize = (m_samplerate * m_throttlems) / 1000;
if (wasRunning) {
startWork();
}
}
}
void AudioCATOutputWorker::setVolume(int volume)
{
m_volume = CalcDb::powerFromdB(volume);
}
void AudioCATOutputWorker::tick()
{
if (m_running)
{
qint64 throttlems = m_elapsedTimer.restart();
if (throttlems != m_throttlems)
{
m_throttlems = throttlems;
m_samplesChunkSize = (m_samplerate * (m_throttlems+(m_throttleToggle ? 1 : 0))) / 1000;
m_throttleToggle = !m_throttleToggle;
}
unsigned int iPart1Begin, iPart1End, iPart2Begin, iPart2End;
SampleVector& data = m_sampleFifo->getData(0);
m_sampleFifo->readAsync(m_samplesChunkSize, iPart1Begin, iPart1End, iPart2Begin, iPart2End, 0);
if (iPart1Begin != iPart1End) {
callbackPart(data, iPart1Begin, iPart1End);
}
if (iPart2Begin != iPart2End) {
callbackPart(data, iPart2Begin, iPart2End);
}
// qDebug("AudioCATOutputWorker::tick: %d samples fill: %u", m_samplesChunkSize, m_audioFifo->fill());
}
}
void AudioCATOutputWorker::callbackPart(SampleVector& data, unsigned int iBegin, unsigned int iEnd)
{
for (unsigned int i = iBegin; i < iEnd; i++)
{
m_audioBuffer[m_audioBufferFill].l =
((m_iqMapping == AudioCATSISOSettings::LR || m_iqMapping == AudioCATSISOSettings::L) ? data[i].m_real : data[i].m_imag) * m_volume;
m_audioBuffer[m_audioBufferFill].r =
((m_iqMapping == AudioCATSISOSettings::LR || m_iqMapping == AudioCATSISOSettings::R) ? data[i].m_imag : data[i].m_real) * m_volume;
m_audioBufferFill++;
if (m_audioBufferFill >= m_audioBuffer.size())
{
uint res = m_audioFifo->write((const quint8*)&m_audioBuffer[0], m_audioBufferFill);
if (res != m_audioBufferFill)
{
qDebug("AudioCATOutputWorker::callbackPart: %u/%u audio samples written", res, m_audioBufferFill);
m_audioFifo->clear();
}
m_audioBufferFill = 0;
}
}
}