Audio Input: implemented worker + thread

2026-06-17 21:28:43 -04:00 · 2020-11-13 16:22:29 +01:00
parent 4b397f0cc7
commit 6e3add76e3
5 changed files with 45 additions and 70 deletions
@@ -0,0 +1,61 @@
+///////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2015-2018 Edouard Griffiths, F4EXB                              //
+// Copyright (C) 2020 Jon Beniston, M7RCE                                        //
+//                                                                               //
+// 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/>.          //
+///////////////////////////////////////////////////////////////////////////////////
+
+#ifndef INCLUDE_AUDIOINPUTWORKER_H
+#define INCLUDE_AUDIOINPUTWORKER_H
+
+#include <QObject>
+
+#include "dsp/samplesinkfifo.h"
+#include "dsp/decimators.h"
+#include "audioinputsettings.h"
+
+class AudioFifo;
+
+class AudioInputWorker : public QObject {
+    Q_OBJECT
+
+public:
+    AudioInputWorker(SampleSinkFifo* sampleFifo, AudioFifo *fifo, QObject* parent = nullptr);
+    ~AudioInputWorker();
+
+    void startWork();
+    void stopWork();
+    void setLog2Decimation(unsigned int log2_decim) {m_log2Decim = log2_decim;}
+    void setIQMapping(AudioInputSettings::IQMapping iqMapping) {m_iqMapping = iqMapping;}
+
+    static const int m_convBufSamples = 4096;
+private:
+    AudioFifo* m_fifo;
+
+    bool m_running;
+    unsigned int m_log2Decim;
+    AudioInputSettings::IQMapping m_iqMapping;
+
+    qint16 m_buf[m_convBufSamples*2]; // stereo (I, Q)
+    SampleVector m_convertBuffer;
+    SampleSinkFifo* m_sampleFifo;
+    Decimators<qint32, qint16, SDR_RX_SAMP_SZ, 16, true> m_decimatorsIQ;
+
+    void workIQ(unsigned int nbRead);
+
+private slots:
+    void handleAudio();
+};
+
+#endif // INCLUDE_AUDIOINPUTWORKER_H