kopia lustrzana https://github.com/f4exb/sdrangel
Added an AudioInput class
f4exb
rodzic
cb2e99f540
commit
4c3db01409
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@ -94,6 +94,7 @@ set(sdrbase_SOURCES
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sdrbase/audio/audiodeviceinfo.cpp
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sdrbase/audio/audiofifo.cpp
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sdrbase/audio/audiooutput.cpp
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sdrbase/audio/audioinput.cpp
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sdrbase/dsp/afsquelch.cpp
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sdrbase/dsp/agc.cpp
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@ -185,6 +186,7 @@ set(sdrbase_HEADERS
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sdrbase/audio/audiodeviceinfo.h
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sdrbase/audio/audiofifo.h
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sdrbase/audio/audiooutput.h
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sdrbase/audio/audioinput.h
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sdrbase/dsp/afsquelch.h
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sdrbase/dsp/downchannelizer.h
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@ -0,0 +1,183 @@
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///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2016 Edouard Griffiths, F4EXB //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <string.h>
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#include <QAudioFormat>
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#include <QAudioDeviceInfo>
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#include <QAudioInput>
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#include "audio/audioinput.h"
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#include "audio/audiofifo.h"
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AudioInput::AudioInput() :
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m_mutex(),
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m_audioInput(0),
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m_audioUsageCount(0),
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m_onExit(false),
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m_audioFifos()
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{
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}
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AudioInput::~AudioInput()
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{
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stop();
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QMutexLocker mutexLocker(&m_mutex);
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for (AudioFifos::iterator it = m_audioFifos.begin(); it != m_audioFifos.end(); ++it)
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{
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delete *it;
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}
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m_audioFifos.clear();
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}
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bool AudioInput::start(int device, int rate)
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{
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QMutexLocker mutexLocker(&m_mutex);
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if (m_audioUsageCount == 0)
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{
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QAudioDeviceInfo devInfo;
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if (device < 0)
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{
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devInfo = QAudioDeviceInfo::defaultInputDevice();
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qWarning("AudioInput::start: using default device %s", qPrintable(devInfo.defaultInputDevice().deviceName()));
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}
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else
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{
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QList<QAudioDeviceInfo> devicesInfo = QAudioDeviceInfo::availableDevices(QAudio::AudioInput);
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if (device < devicesInfo.size())
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{
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devInfo = devicesInfo[device];
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qWarning("AudioInput::start: using audio device #%d: %s", device, qPrintable(devInfo.defaultInputDevice().deviceName()));
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}
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else
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{
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devInfo = QAudioDeviceInfo::defaultInputDevice();
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qWarning("AudioInput::start: audio device #%d does not exist. Using default device %s", device, qPrintable(devInfo.defaultInputDevice().deviceName()));
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}
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}
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//QAudioDeviceInfo devInfo(QAudioDeviceInfo::defaultOutputDevice());
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m_audioFormat.setSampleRate(rate);
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m_audioFormat.setChannelCount(2);
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m_audioFormat.setSampleSize(16);
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m_audioFormat.setCodec("audio/pcm");
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m_audioFormat.setByteOrder(QAudioFormat::LittleEndian);
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m_audioFormat.setSampleType(QAudioFormat::SignedInt);
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if (!devInfo.isFormatSupported(m_audioFormat))
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{
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m_audioFormat = devInfo.nearestFormat(m_audioFormat);
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qWarning("AudioInput::start: %d Hz S16_LE audio format not supported. New rate: %d", rate, m_audioFormat.sampleRate());
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}
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if (m_audioFormat.sampleSize() != 16)
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{
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qWarning("AudioInput::start: Audio device ( %s ) failed", qPrintable(devInfo.defaultInputDevice().deviceName()));
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return false;
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}
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m_audioInput = new QAudioInput(devInfo, m_audioFormat);
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QIODevice::open(QIODevice::ReadOnly);
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m_audioInput->start(this);
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if (m_audioInput->state() != QAudio::ActiveState)
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{
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qWarning("AudioInput::start: cannot start");
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}
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}
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m_audioUsageCount++;
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return true;
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}
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void AudioInput::stop()
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{
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qDebug("AudioInput::stop");
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QMutexLocker mutexLocker(&m_mutex);
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if (m_audioUsageCount > 0)
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{
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m_audioUsageCount--;
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if (m_audioUsageCount == 0)
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{
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QIODevice::close();
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if (!m_onExit) {
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delete m_audioInput;
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}
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}
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}
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}
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void AudioInput::addFifo(AudioFifo* audioFifo)
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{
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QMutexLocker mutexLocker(&m_mutex);
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m_audioFifos.push_back(audioFifo);
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}
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void AudioInput::removeFifo(AudioFifo* audioFifo)
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{
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QMutexLocker mutexLocker(&m_mutex);
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m_audioFifos.remove(audioFifo);
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}
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qint64 AudioInput::readData(char* data, qint64 maxLen)
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{
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Q_UNUSED(data);
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Q_UNUSED(maxLen);
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return 0;
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}
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qint64 AudioInput::writeData(const char *data, qint64 len)
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{
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// @TODO: Study this mutex on OSX, for now deadlocks possible
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#ifndef __APPLE__
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QMutexLocker mutexLocker(&m_mutex);
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#endif
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if ((m_audioFormat.sampleSize() != 16)
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|| (m_audioFormat.sampleType() != QAudioFormat::SignedInt)
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|| (m_audioFormat.byteOrder() != QAudioFormat::LittleEndian))
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{
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qCritical("AudioInput::writeData: invalid format not S16LE");
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return 0;
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}
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if (m_audioFormat.channelCount() != 2) {
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qCritical("AudioInput::writeData: invalid format not stereo");
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return 0;
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}
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for (AudioFifos::iterator it = m_audioFifos.begin(); it != m_audioFifos.end(); ++it)
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{
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(*it)->write(reinterpret_cast<const quint8*>(data), len/4, 10);
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}
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return len;
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}
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@ -0,0 +1,67 @@
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///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2016 Edouard Griffiths, F4EXB //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef SDRBASE_AUDIO_AUDIOINPUT_H_
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#define SDRBASE_AUDIO_AUDIOINPUT_H_
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#include <QMutex>
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#include <QIODevice>
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#include <QAudioFormat>
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#include <list>
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#include <vector>
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#include "util/export.h"
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class QAudioInput;
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class AudioFifo;
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class AudioOutputPipe;
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class SDRANGEL_API AudioInput : public QIODevice {
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public:
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AudioInput();
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virtual ~AudioInput();
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bool start(int device, int rate);
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void stop();
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void addFifo(AudioFifo* audioFifo);
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void removeFifo(AudioFifo* audioFifo);
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uint getRate() const { return m_audioFormat.sampleRate(); }
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void setOnExit(bool onExit) { m_onExit = onExit; }
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private:
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QMutex m_mutex;
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QAudioInput* m_audioInput;
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uint m_audioUsageCount;
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bool m_onExit;
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typedef std::list<AudioFifo*> AudioFifos;
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AudioFifos m_audioFifos;
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std::vector<qint32> m_mixBuffer;
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QAudioFormat m_audioFormat;
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//virtual bool open(OpenMode mode);
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virtual qint64 readData(char* data, qint64 maxLen);
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virtual qint64 writeData(const char* data, qint64 len);
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friend class AudioOutputPipe;
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};
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#endif /* SDRBASE_AUDIO_AUDIOINPUT_H_ */
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@ -34,6 +34,7 @@ SOURCES += mainwindow.cpp\
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audio/audiodeviceinfo.cpp\
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audio/audiofifo.cpp\
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audio/audiooutput.cpp\
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audio/audioinput.cpp\
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device/devicesourceapi.cpp\
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device/devicesinkapi.cpp\
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dsp/afsquelch.cpp\
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@ -116,6 +117,7 @@ HEADERS += mainwindow.h\
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audio/audiodeviceinfo.h\
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audio/audiofifo.h\
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audio/audiooutput.h\
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audio/audioinput.h\
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device/devicesourceapi.h\
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device/devicesinkapi.h\
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dsp/afsquelch.h\
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