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107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/*
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Copyright (C) 2019-2021 Doug McLain
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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, either version 3 of the License, or
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(at your option) any later version.
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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 for more details.
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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 <https://www.gnu.org/licenses/>.
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*/
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#ifndef AUDIOENGINE_H
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#define AUDIOENGINE_H
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#include <QObject>
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#if QT_VERSION < QT_VERSION_CHECK(6, 3, 0)
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#include <QAudio>
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#include <QAudioFormat>
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#include <QAudioInput>
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#else
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#include <QAudioDevice>
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#include <QAudioSink>
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#include <QAudioSource>
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#include <QMediaDevices>
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#endif
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#include <QAudioOutput>
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#include <QQueue>
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#define AUDIO_OUT 1
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#define AUDIO_IN 0
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class AudioEngine : public QObject
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{
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Q_OBJECT
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public:
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//explicit AudioEngine(QObject *parent = nullptr);
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AudioEngine(QString in, QString out);
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~AudioEngine();
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static QStringList discover_audio_devices(uint8_t d);
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void init();
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void start_capture();
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void stop_capture();
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void start_playback();
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void stop_playback();
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void write(int16_t *, size_t);
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void set_output_buffer_size(uint32_t b) { m_out->setBufferSize(b); }
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void set_input_buffer_size(uint32_t b) { if(m_in != nullptr) m_in->setBufferSize(b); }
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void set_output_volume(qreal v){ m_out->setVolume(v); }
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void set_input_volume(qreal v){ if(m_in != nullptr) m_in->setVolume(v); }
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void set_agc(bool agc) { m_agc = agc; }
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bool frame_available() { return (m_audioinq.size() >= 320) ? true : false; }
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uint16_t read(int16_t *, int);
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uint16_t read(int16_t *);
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uint16_t level() { return m_maxlevel; }
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signals:
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private:
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QString m_outputdevice;
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QString m_inputdevice;
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#if QT_VERSION < QT_VERSION_CHECK(6, 3, 0)
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QAudioOutput *m_out;
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QAudioInput *m_in;
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#else
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QAudioSink *m_out;
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QAudioSource *m_in;
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#endif
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QIODevice *m_outdev;
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QIODevice *m_indev;
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QQueue<int16_t> m_audioinq;
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uint16_t m_maxlevel;
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bool m_agc;
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float m_srm; // sample rate multiplier for macOS HACK
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float m_audio_out_temp_buf[320]; //!< output of decoder
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float *m_audio_out_temp_buf_p;
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//float m_audio_out_float_buf[1120]; //!< output of upsampler - 1 frame of 160 samples upampled up to 7 times
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//float *m_audio_out_float_buf_p;
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float m_aout_max_buf[200];
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float *m_aout_max_buf_p;
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int m_aout_max_buf_idx;
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//short m_audio_out_buf[2*48000]; //!< final result - 1s of L+R S16LE samples
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//short *m_audio_out_buf_p;
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//int m_audio_out_nb_samples;
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//int m_audio_out_buf_size;
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//int m_audio_out_idx;
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//int m_audio_out_idx2;
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float m_aout_gain;
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float m_volume;
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private slots:
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void input_data_received();
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void process_audio(int16_t *pcm, size_t s);
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void handleStateChanged(QAudio::State newState);
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};
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#endif // AUDIOENGINE_H
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