mirror of
https://github.com/f4exb/sdrangel.git
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225 lines
7.0 KiB
C++
225 lines
7.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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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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// (at your option) any later version. //
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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 <QDebug>
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#include <QAudioFormat>
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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#include <QAudioSource>
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#else
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#include <QAudioInput>
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#endif
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#include "audio/audioinputdevice.h"
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#include "audio/audiodeviceinfo.h"
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#include "audio/audiofifo.h"
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AudioInputDevice::AudioInputDevice() :
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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_volume(0.5f),
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m_audioFifos()
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{
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}
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AudioInputDevice::~AudioInputDevice()
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{
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stop();
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QMutexLocker mutexLocker(&m_mutex);
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for (std::list<AudioFifo*>::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 AudioInputDevice::start(int device, int rate)
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{
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if (m_audioUsageCount == 0)
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{
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QMutexLocker mutexLocker(&m_mutex);
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AudioDeviceInfo devInfo;
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if (device < 0)
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{
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devInfo = AudioDeviceInfo::defaultInputDevice();
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qWarning("AudioInputDevice::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<AudioDeviceInfo> devicesInfo = AudioDeviceInfo::availableInputDevices();
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if (device < devicesInfo.size())
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{
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devInfo = devicesInfo[device];
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qWarning("AudioInputDevice::start: using audio device #%d: %s", device, qPrintable(devInfo.deviceName()));
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}
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else
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{
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devInfo = AudioDeviceInfo::defaultInputDevice();
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qWarning("AudioInputDevice::start: audio device #%d does not exist. Using default device %s", device, qPrintable(devInfo.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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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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m_audioFormat.setSampleFormat(QAudioFormat::Int16);
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#else
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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); // Unknown, SignedInt, UnSignedInt, Float
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#endif
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if (!devInfo.isFormatSupported(m_audioFormat))
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{
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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qWarning("AudioInputDevice::start: %d Hz S16_LE audio format not supported.");
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#else
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m_audioFormat = devInfo.deviceInfo().nearestFormat(m_audioFormat);
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qWarning("AudioInputDevice::start: %d Hz S16_LE audio format not supported. Nearest is sampleRate: %d channelCount: %d sampleSize: %d sampleType: %d",
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rate, m_audioFormat.sampleRate(), m_audioFormat.channelCount(), m_audioFormat.sampleSize(), (int) m_audioFormat.sampleType());
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#endif
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}
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else
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{
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qInfo("AudioInputDevice::start: audio format OK");
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}
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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if (m_audioFormat.sampleFormat() != QAudioFormat::Int16)
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{
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qWarning("AudioInputDevice::start: Audio device '%s' failed", qPrintable(devInfo.deviceName()));
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return false;
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}
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#else
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if (m_audioFormat.sampleSize() != 16)
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{
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qWarning("AudioInputDevice::start: Audio device '%s' failed", qPrintable(devInfo.deviceName()));
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return false;
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}
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#endif
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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m_audioInput = new QAudioSource(devInfo.deviceInfo(), m_audioFormat);
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#else
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m_audioInput = new QAudioInput(devInfo.deviceInfo(), m_audioFormat);
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#endif
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m_audioInput->setVolume(m_volume);
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QIODevice::open(QIODevice::ReadWrite);
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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("AudioInputDevice::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 AudioInputDevice::stop()
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{
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qDebug("AudioInputDevice::stop");
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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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qDebug("AudioInputDevice::stop: effectively close QIODevice");
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QMutexLocker mutexLocker(&m_mutex);
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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 AudioInputDevice::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 AudioInputDevice::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 AudioInputDevice::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 AudioInputDevice::writeData(const char *data, qint64 len)
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{
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// Study this mutex on OSX, for now deadlocks possible
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// Removed as it may indeed cause lockups and is in fact useless.
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//#ifndef __APPLE__
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// QMutexLocker mutexLocker(&m_mutex);
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//#endif
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#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
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#else
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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("AudioInputDevice::writeData: invalid format not S16LE");
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return 0;
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}
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#endif
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if (m_audioFormat.channelCount() != 2) {
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qCritical("AudioInputDevice::writeData: invalid format not stereo");
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return 0;
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}
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for (std::list<AudioFifo*>::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);
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}
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return len;
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}
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void AudioInputDevice::setVolume(float volume)
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{
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m_volume = volume;
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if (m_audioInput != nullptr)
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m_audioInput->setVolume(m_volume);
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}
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