mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-16 05:11:49 -05:00
344 lines
9.3 KiB
C++
344 lines
9.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
|
|
// written by Christian Daniel //
|
|
// //
|
|
// 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 <string.h>
|
|
#include <QAudioFormat>
|
|
#include <QAudioDeviceInfo>
|
|
#include <QAudioOutput>
|
|
#include "audiooutput.h"
|
|
#include "audiofifo.h"
|
|
#include "audionetsink.h"
|
|
|
|
AudioOutput::AudioOutput() :
|
|
m_mutex(QMutex::Recursive),
|
|
m_audioOutput(0),
|
|
m_audioNetSink(0),
|
|
m_copyAudioToUdp(false),
|
|
m_udpChannelMode(UDPChannelLeft),
|
|
m_udpChannelCodec(UDPCodecL16),
|
|
m_audioUsageCount(0),
|
|
m_onExit(false),
|
|
m_audioFifos()
|
|
{
|
|
}
|
|
|
|
AudioOutput::~AudioOutput()
|
|
{
|
|
// stop();
|
|
//
|
|
// QMutexLocker mutexLocker(&m_mutex);
|
|
//
|
|
// for (std::list<AudioFifo*>::iterator it = m_audioFifos.begin(); it != m_audioFifos.end(); ++it)
|
|
// {
|
|
// delete *it;
|
|
// }
|
|
//
|
|
// m_audioFifos.clear();
|
|
}
|
|
|
|
bool AudioOutput::start(int device, int rate)
|
|
{
|
|
|
|
// if (m_audioUsageCount == 0)
|
|
// {
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
QAudioDeviceInfo devInfo;
|
|
|
|
if (device < 0)
|
|
{
|
|
devInfo = QAudioDeviceInfo::defaultOutputDevice();
|
|
qWarning("AudioOutput::start: using system default device %s", qPrintable(devInfo.defaultOutputDevice().deviceName()));
|
|
}
|
|
else
|
|
{
|
|
QList<QAudioDeviceInfo> devicesInfo = QAudioDeviceInfo::availableDevices(QAudio::AudioOutput);
|
|
|
|
if (device < devicesInfo.size())
|
|
{
|
|
devInfo = devicesInfo[device];
|
|
qWarning("AudioOutput::start: using audio device #%d: %s", device, qPrintable(devInfo.deviceName()));
|
|
}
|
|
else
|
|
{
|
|
devInfo = QAudioDeviceInfo::defaultOutputDevice();
|
|
qWarning("AudioOutput::start: audio device #%d does not exist. Using system default device %s", device, qPrintable(devInfo.defaultOutputDevice().deviceName()));
|
|
}
|
|
}
|
|
|
|
//QAudioDeviceInfo devInfo(QAudioDeviceInfo::defaultOutputDevice());
|
|
|
|
m_audioFormat.setSampleRate(rate);
|
|
m_audioFormat.setChannelCount(2);
|
|
m_audioFormat.setSampleSize(16);
|
|
m_audioFormat.setCodec("audio/pcm");
|
|
m_audioFormat.setByteOrder(QAudioFormat::LittleEndian);
|
|
m_audioFormat.setSampleType(QAudioFormat::SignedInt);
|
|
|
|
if (!devInfo.isFormatSupported(m_audioFormat))
|
|
{
|
|
m_audioFormat = devInfo.nearestFormat(m_audioFormat);
|
|
std::ostringstream os;
|
|
os << " sampleRate: " << m_audioFormat.sampleRate()
|
|
<< " channelCount: " << m_audioFormat.channelCount()
|
|
<< " sampleSize: " << m_audioFormat.sampleSize()
|
|
<< " codec: " << m_audioFormat.codec().toStdString()
|
|
<< " byteOrder: " << (m_audioFormat.byteOrder() == QAudioFormat::BigEndian ? "BE" : "LE")
|
|
<< " sampleType: " << (int) m_audioFormat.sampleType();
|
|
qWarning("AudioOutput::start: format %d Hz 2xS16LE audio/pcm not supported. Using: %s", rate, os.str().c_str());
|
|
}
|
|
else
|
|
{
|
|
qInfo("AudioOutput::start: audio format OK");
|
|
}
|
|
|
|
if (m_audioFormat.sampleSize() != 16)
|
|
{
|
|
qWarning("AudioOutput::start: Audio device '%s' failed", qPrintable(devInfo.defaultOutputDevice().deviceName()));
|
|
return false;
|
|
}
|
|
|
|
m_audioOutput = new QAudioOutput(devInfo, m_audioFormat);
|
|
m_audioNetSink = new AudioNetSink(0, m_audioFormat.sampleRate(), false);
|
|
|
|
QIODevice::open(QIODevice::ReadOnly);
|
|
|
|
m_audioOutput->start(this);
|
|
|
|
if (m_audioOutput->state() != QAudio::ActiveState)
|
|
{
|
|
qWarning("AudioOutput::start: cannot start");
|
|
}
|
|
// }
|
|
//
|
|
// m_audioUsageCount++;
|
|
|
|
return true;
|
|
}
|
|
|
|
void AudioOutput::stop()
|
|
{
|
|
qDebug("AudioOutput::stop");
|
|
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
m_audioOutput->stop();
|
|
QIODevice::close();
|
|
delete m_audioNetSink;
|
|
m_audioNetSink = 0;
|
|
delete m_audioOutput;
|
|
|
|
// if (m_audioUsageCount > 0)
|
|
// {
|
|
// m_audioUsageCount--;
|
|
//
|
|
// if (m_audioUsageCount == 0)
|
|
// {
|
|
// QMutexLocker mutexLocker(&m_mutex);
|
|
// QIODevice::close();
|
|
//
|
|
// if (!m_onExit) {
|
|
// delete m_audioOutput;
|
|
// }
|
|
// }
|
|
// }
|
|
}
|
|
|
|
void AudioOutput::addFifo(AudioFifo* audioFifo)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
|
|
m_audioFifos.push_back(audioFifo);
|
|
}
|
|
|
|
void AudioOutput::removeFifo(AudioFifo* audioFifo)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
|
|
m_audioFifos.remove(audioFifo);
|
|
}
|
|
|
|
/*
|
|
bool AudioOutput::open(OpenMode mode)
|
|
{
|
|
Q_UNUSED(mode);
|
|
return false;
|
|
}*/
|
|
|
|
void AudioOutput::setUdpDestination(const QString& address, uint16_t port)
|
|
{
|
|
if (m_audioNetSink) {
|
|
m_audioNetSink->setDestination(address, port);
|
|
}
|
|
}
|
|
|
|
void AudioOutput::setUdpCopyToUDP(bool copyToUDP)
|
|
{
|
|
m_copyAudioToUdp = copyToUDP;
|
|
}
|
|
|
|
void AudioOutput::setUdpUseRTP(bool useRTP)
|
|
{
|
|
if (m_audioNetSink) {
|
|
m_audioNetSink->selectType(useRTP ? AudioNetSink::SinkRTP : AudioNetSink::SinkUDP);
|
|
}
|
|
}
|
|
|
|
void AudioOutput::setUdpChannelMode(UDPChannelMode udpChannelMode)
|
|
{
|
|
m_udpChannelMode = udpChannelMode;
|
|
}
|
|
|
|
void AudioOutput::setUdpChannelFormat(UDPChannelCodec udpChannelCodec, bool stereo, int sampleRate)
|
|
{
|
|
m_udpChannelCodec = udpChannelCodec;
|
|
|
|
if (m_audioNetSink) {
|
|
m_audioNetSink->setParameters((AudioNetSink::Codec) m_udpChannelCodec, stereo, sampleRate);
|
|
}
|
|
}
|
|
|
|
void AudioOutput::setUdpDecimation(uint32_t decimation)
|
|
{
|
|
if (m_audioNetSink) {
|
|
m_audioNetSink->setDecimation(decimation);
|
|
}
|
|
}
|
|
|
|
qint64 AudioOutput::readData(char* data, qint64 maxLen)
|
|
{
|
|
//qDebug("AudioOutput::readData: %lld", maxLen);
|
|
|
|
// Study this mutex on OSX, for now deadlocks possible
|
|
// Removed as it may indeed cause lockups and is in fact useless.
|
|
//#ifndef __APPLE__
|
|
// QMutexLocker mutexLocker(&m_mutex);
|
|
//#endif
|
|
|
|
unsigned int samplesPerBuffer = maxLen / 4;
|
|
|
|
if (samplesPerBuffer == 0)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
if (m_mixBuffer.size() < samplesPerBuffer * 2)
|
|
{
|
|
m_mixBuffer.resize(samplesPerBuffer * 2); // allocate 2 qint32 per sample (stereo)
|
|
|
|
if (m_mixBuffer.size() != samplesPerBuffer * 2)
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
memset(&m_mixBuffer[0], 0x00, 2 * samplesPerBuffer * sizeof(m_mixBuffer[0])); // start with silence
|
|
|
|
// sum up a block from all fifos
|
|
|
|
for (std::list<AudioFifo*>::iterator it = m_audioFifos.begin(); it != m_audioFifos.end(); ++it)
|
|
{
|
|
// use outputBuffer as temp - yes, one memcpy could be saved
|
|
unsigned int samples = (*it)->read((quint8*) data, samplesPerBuffer);
|
|
const qint16* src = (const qint16*) data;
|
|
std::vector<qint32>::iterator dst = m_mixBuffer.begin();
|
|
|
|
// if (samples != framesPerBuffer)
|
|
// {
|
|
// qDebug("AudioOutput::readData: read %d samples vs %d requested", samples, framesPerBuffer);
|
|
// }
|
|
|
|
for (unsigned int i = 0; i < samples; i++)
|
|
{
|
|
*dst += *src;
|
|
++src;
|
|
++dst;
|
|
*dst += *src;
|
|
++src;
|
|
++dst;
|
|
}
|
|
}
|
|
// convert to int16
|
|
|
|
//std::vector<qint32>::const_iterator src = m_mixBuffer.begin(); // Valgrind optim
|
|
qint16* dst = (qint16*) data;
|
|
qint32 sl, sr;
|
|
|
|
for (unsigned int i = 0; i < samplesPerBuffer; i++)
|
|
{
|
|
// left channel
|
|
|
|
//s = *src++; // Valgrind optim
|
|
sl = m_mixBuffer[2*i];
|
|
|
|
if(sl < -32768)
|
|
{
|
|
sl = -32768;
|
|
}
|
|
else if (sl > 32767)
|
|
{
|
|
sl = 32767;
|
|
}
|
|
|
|
*dst++ = sl;
|
|
|
|
// right channel
|
|
|
|
//s = *src++; // Valgrind optim
|
|
sr = m_mixBuffer[2*i + 1];
|
|
|
|
if(sr < -32768)
|
|
{
|
|
sr = -32768;
|
|
}
|
|
else if (sr > 32767)
|
|
{
|
|
sr = 32767;
|
|
}
|
|
|
|
*dst++ = sr;
|
|
|
|
if ((m_copyAudioToUdp) && (m_audioNetSink))
|
|
{
|
|
switch (m_udpChannelMode)
|
|
{
|
|
case UDPChannelStereo:
|
|
m_audioNetSink->write(sl, sr);
|
|
break;
|
|
case UDPChannelMixed:
|
|
m_audioNetSink->write((sl+sr)/2);
|
|
break;
|
|
case UDPChannelRight:
|
|
m_audioNetSink->write(sr);
|
|
break;
|
|
case UDPChannelLeft:
|
|
default:
|
|
m_audioNetSink->write(sl);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return samplesPerBuffer * 4;
|
|
}
|
|
|
|
qint64 AudioOutput::writeData(const char* data, qint64 len)
|
|
{
|
|
Q_UNUSED(data);
|
|
Q_UNUSED(len);
|
|
return 0;
|
|
}
|