initial git commit

.gitignore

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+# This file is used to ignore files which are generated
+# ----------------------------------------------------------------------------
+
+*~
+*.autosave
+*.a
+*.core
+*.moc
+*.o
+*.obj
+*.orig
+*.rej
+*.so
+*.so.*
+*_pch.h.cpp
+*_resource.rc
+*.qm
+.#*
+*.*#
+core
+!core/
+tags
+.DS_Store
+.directory
+*.debug
+Makefile*
+*.prl
+*.app
+moc_*.cpp
+ui_*.h
+qrc_*.cpp
+Thumbs.db
+*.res
+*.rc
+/.qmake.cache
+/.qmake.stash
+
+# qtcreator generated files
+*.pro.user*
+
+# xemacs temporary files
+*.flc
+
+# Vim temporary files
+.*.swp
+
+# Visual Studio generated files
+*.ib_pdb_index
+*.idb
+*.ilk
+*.pdb
+*.sln
+*.suo
+*.vcproj
+*vcproj.*.*.user
+*.ncb
+*.sdf
+*.opensdf
+*.vcxproj
+*vcxproj.*
+
+# MinGW generated files
+*.Debug
+*.Release
+
+# Python byte code
+*.pyc
+
+# Binaries
+# --------
+*.dll
+*.exe
+
+# other
+test_output/*
+
+
+

JC2Rec.pro

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+#-------------------------------------------------
+#
+# Project created by QtCreator 2015-05-23T17:32:54
+#
+#-------------------------------------------------
+
+QT       += multimedia core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+TARGET = JC2Rec
+TEMPLATE = app
+
+
+INCLUDEPATH += ../codec2/src
+INCLUDEPATH += ../codec2/build/codec2
+
+
+SOURCES += main.cpp\
+        mainwindow.cpp \
+    source.cpp \
+    sink.cpp
+
+HEADERS  += mainwindow.h \
+        ../codec2/src/codec2.h \
+    source.h \
+    sink.h
+
+FORMS    += mainwindow.ui
+
+win32 {
+LIBS += -L../codec2/build/src \
+    -lcodec2
+}
+
+RESOURCES += \
+    icon.qrc

LICENSE

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+MIT License
+
+Copyright (c) 2021 Jonti Olds
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# JC2Rec is a GUI in Qt for recording speech using Codec2.
+
+This is a simple speech recording application that uses Codec2 and Qt. For more information see https://jontio.zapto.org/hda1/jc2rec.html

icon.qrc

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+<RCC>
+    <qresource prefix="/icons">
+        <file>icon.png</file>
+    </qresource>
+</RCC>

main.cpp

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+#include "mainwindow.h"
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.show();
+
+    return a.exec();
+}

mainwindow.cpp

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+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+#include <QFileDialog>
+#include <QDebug>
+#include <QMessageBox>
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow),
+    m_source(NULL),
+    m_sink(NULL),
+    m_audioOutput(NULL),
+    m_audioInput(NULL)
+
+{
+    ui->setupUi(this);
+
+    //select default devices and set the format
+    m_device_out=QAudioDeviceInfo::defaultOutputDevice();
+    m_device_in=QAudioDeviceInfo::defaultInputDevice();
+    m_format.setSampleRate(8000);
+    m_format.setChannelCount(1);
+    m_format.setSampleSize(16);
+    m_format.setCodec("audio/pcm");
+    m_format.setByteOrder(QAudioFormat::LittleEndian);
+    m_format.setSampleType(QAudioFormat::SignedInt);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::max_mic_volume(int percentage)
+{
+    ui->progressBar->setValue(percentage);
+}
+
+void MainWindow::played_file_percentage(int percentage)
+{
+    ui->progressBar->setValue(percentage);
+}
+
+void MainWindow::on_openfiletoolButton_clicked()
+{
+    QString fileName = QFileDialog::getOpenFileName(this,tr("Open Raw Codec2 File"), "", tr("Raw Codec2 Files (*.c2 *.raw);;All files (*.*)"));
+    ui->playfilelineEdit->setText(fileName);
+}
+
+void MainWindow::on_savefiletoolButton_clicked()
+{
+    QString fileName = QFileDialog::getSaveFileName(this,tr("Save Raw Codec2 File"), "", tr("Raw Codec2 File (*.c2);;Raw Codec2 File (*.raw);;All files (*.*)"));
+    ui->savefilelineEdit->setText(fileName);
+}
+
+//encode on the fly and output to file using the class called "Sink" to do the work
+void MainWindow::on_recButton_clicked()
+{
+    on_stopButton_clicked();
+    if(m_audioInput)m_audioInput->deleteLater();
+    if(m_sink)m_sink->deleteLater();
+
+    int mode=0;
+    if (ui->bitratecomboBox->currentText()=="3200")
+        mode = CODEC2_MODE_3200;
+    else if (ui->bitratecomboBox->currentText()=="2400")
+        mode = CODEC2_MODE_2400;
+    else if (ui->bitratecomboBox->currentText()=="1600")
+        mode = CODEC2_MODE_1600;
+    else if (ui->bitratecomboBox->currentText()=="1400")
+        mode = CODEC2_MODE_1400;
+    else if (ui->bitratecomboBox->currentText()=="1300")
+        mode = CODEC2_MODE_1300;
+    else if (ui->bitratecomboBox->currentText()=="1200")
+        mode = CODEC2_MODE_1200;
+    else if (ui->bitratecomboBox->currentText()=="700C")
+        mode = CODEC2_MODE_700C;
+    else if (ui->bitratecomboBox->currentText()=="450")
+        mode = CODEC2_MODE_450;
+    else if (ui->bitratecomboBox->currentText()=="450PWB")
+        mode = CODEC2_MODE_450PWB;
+    else {
+        qDebug()<<"invalid bit rate";
+    }
+
+    int natural=1;
+    if(ui->encodingcomboBox->currentText()=="Natural") natural=1;
+    if(ui->encodingcomboBox->currentText()=="Gray") natural=0;
+
+    //setup
+    m_device_in=QAudioDeviceInfo::defaultInputDevice();
+    m_sink = new Sink(ui->savefilelineEdit->text(),mode,natural,ui->saveorgpcmcheckBox->isChecked(), this);
+    m_audioInput = new QAudioInput(m_device_in, m_format, this);
+    m_audioInput->setBufferSize(8000);//1 second buffer
+    connect(m_sink, SIGNAL(signal_volume(int)),this, SLOT(max_mic_volume(int)));
+    connect(m_sink, SIGNAL(ChannelFailed()),this,SLOT(on_stopButton_clicked()),Qt::QueuedConnection);
+    ui->progressBar->setFormat("Volume");
+    ui->recButton->setEnabled(false);
+    ui->playButton->setEnabled(false);
+
+    //start
+    m_sink->start();
+    m_audioInput->start(m_sink);
+
+    ui->statusBar->clearMessage();
+    if(!m_sink->laststatusmsg.isEmpty())ui->statusBar->showMessage("Rec: "+m_sink->laststatusmsg);
+
+    if(m_sink->failed)on_stopButton_clicked();
+
+}
+
+//decode on the fly and output to soundcard using the class called "Source" to do the work
+void MainWindow::on_playButton_clicked()
+{
+    on_stopButton_clicked();
+    if(m_audioOutput)m_audioOutput->deleteLater();
+    if(m_source)m_source->deleteLater();
+
+    int mode=0;
+    if (ui->bitratecomboBox->currentText()=="3200")
+        mode = CODEC2_MODE_3200;
+    else if (ui->bitratecomboBox->currentText()=="2400")
+        mode = CODEC2_MODE_2400;
+    else if (ui->bitratecomboBox->currentText()=="1600")
+        mode = CODEC2_MODE_1600;
+    else if (ui->bitratecomboBox->currentText()=="1400")
+        mode = CODEC2_MODE_1400;
+    else if (ui->bitratecomboBox->currentText()=="1300")
+        mode = CODEC2_MODE_1300;
+    else if (ui->bitratecomboBox->currentText()=="1200")
+        mode = CODEC2_MODE_1200;
+    else if (ui->bitratecomboBox->currentText()=="700C")
+        mode = CODEC2_MODE_700C;
+    else if (ui->bitratecomboBox->currentText()=="450")
+        mode = CODEC2_MODE_450;
+    else if (ui->bitratecomboBox->currentText()=="450PWB")
+        mode = CODEC2_MODE_450PWB;
+    else {
+        qDebug()<<"invalid bit rate";
+    }
+
+    int natural=1;
+    if(ui->encodingcomboBox->currentText()=="Natural") natural=1;
+    if(ui->encodingcomboBox->currentText()=="Gray") natural=0;
+
+    //setup
+    m_device_out=QAudioDeviceInfo::defaultOutputDevice();
+    m_source = new Source(ui->playfilelineEdit->text(),mode,natural, this);
+    m_audioOutput = new QAudioOutput(m_device_out, m_format, this);
+    m_audioOutput->setBufferSize(8000);//1 second buffer
+    connect(m_source, SIGNAL(percentage_played(int)),this, SLOT(max_mic_volume(int)));
+    connect(m_source, SIGNAL(readChannelFinished()),this,SLOT(on_stopButton_clicked()),Qt::QueuedConnection);//seems to need to be placed in the message queue on windows else calling close will crash
+    ui->progressBar->setFormat("Progress");
+    ui->recButton->setEnabled(false);
+    ui->playButton->setEnabled(false);
+
+    //start
+    m_source->start();
+    m_audioOutput->start(m_source);
+
+    ui->statusBar->clearMessage();
+    if(!m_source->laststatusmsg.isEmpty())ui->statusBar->showMessage("Play: "+m_source->laststatusmsg);
+
+    if(m_source->failed)on_stopButton_clicked();
+
+}
+
+void MainWindow::on_stopButton_clicked()
+{
+    if(m_audioOutput)m_audioOutput->stop();
+    if(m_source)m_source->stop();
+    if(m_audioInput)m_audioInput->stop();
+    if(m_sink)m_sink->stop();
+    max_mic_volume(0);
+    ui->progressBar->setFormat("  Volume/Progress");
+    ui->recButton->setEnabled(true);
+    ui->playButton->setEnabled(true);
+    //ui->statusBar->clearMessage();
+}
+
+void MainWindow::error_slot_msg(QString msg)
+{
+    ui->statusBar->showMessage(msg);
+}
+
+void MainWindow::on_actionAbout_Qt_triggered()
+{
+    QApplication::aboutQt();
+}
+
+void MainWindow::on_action_About_triggered()
+{
+    QMessageBox::about(this,"JC2Rec",""
+                                     "<H1>A speech recorder using Codec2</H1>"
+                                     "<p>This is a simple program to record and play using the Codec2 codec.</p>"
+                                     "<p>Codec2 is an audio codec designed for speech that highly compresses speech."
+                                     " For information about the codec see  <a href=\"http://www.rowetel.com/blog/?page_id=452\">http://www.rowetel.com/blog/?page_id=452</a></p>"
+                                     "<p>For this application see <a href=\"http://jontio.zapto.org/hda1/jc2rec.html\">http://jontio.zapto.org/hda1/jc2rec.html</a>."
+                                     " In addition to this GUI being useful, it is hoped that the source code of it will be useful for others to implement digital communication software.</p>"
+                                     "<p>The compressed audio files are saved without any header information so will require you to"
+                                     " remember the settings that they were recorded at.</p>Jonti 2015" );
+}
+
+