mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-09-09 06:46:39 -04:00
833eaf9eef
Windows Vista has a broken rate converter which gets invoked when an input audio stream at 48kHz sampel rate is requested. I've no idea why our application can't get exclusive access to the audio input device and have a unconverted stream direct at 48kHz. To get around this our down sampling filter for audio input from 48kHz to 12kHz is disaabled by default on Windows Vista, instead we request a 12kHz stream and process it directly. This default behviour can be overriden by specifying the following settings value: [Tune] Audio\DisableInputResampling=false This settings value defaults to true on Windows Vista and false everywhere else so normally needn't be present. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@3588 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
78 lines
2.1 KiB
C++
78 lines
2.1 KiB
C++
#ifdef QT5
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#include <QtWidgets>
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#else
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#include <QtGui>
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#endif
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#include <QApplication>
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#include <QObject>
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#include <QSettings>
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#include <QSysInfo>
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#include "mainwindow.h"
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// Multiple instances:
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QSharedMemory mem_jt9;
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QUuid my_uuid;
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QString my_key;
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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qRegisterMetaType<AudioDevice::Channel> ("AudioDevice::Channel");
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QSettings settings(a.applicationDirPath() + "/wsjtx.ini", QSettings::IniFormat);
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QFile f("fonts.txt");
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qint32 fontSize,fontWeight,fontSize2,fontWeight2; // Defaults 8 50 10 50
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fontSize2=10;
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fontWeight2=50;
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if(f.open(QIODevice::ReadOnly)) {
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QTextStream in(&f);
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in >> fontSize >> fontWeight >> fontSize2 >> fontWeight2;
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f.close();
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QFont font=a.font();
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if(fontSize!=8) font.setPointSize(fontSize);
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font.setWeight(fontWeight); //Set the GUI fonts
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a.setFont(font);
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}
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// Create and initialize shared memory segment
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// Multiple instances: generate shared memory keys with UUID
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my_uuid = QUuid::createUuid();
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my_key = my_uuid.toString();
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mem_jt9.setKey(my_key);
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if(!mem_jt9.attach()) {
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if (!mem_jt9.create(sizeof(jt9com_))) {
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QMessageBox::critical( 0, "Error", "Unable to create shared memory segment.");
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exit(1);
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}
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}
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char *to = (char*)mem_jt9.data();
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int size=sizeof(jt9com_);
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if(jt9com_.newdat==0) {
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}
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memset(to,0,size); //Zero all decoding params in shared memory
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settings.beginGroup ("Tune");
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// deal with Windows Vista input audio rate converter problems
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unsigned downSampleFactor = settings.value ("Audio/DisableInputResampling",
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#if defined (Q_OS_WIN)
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QSysInfo::WV_VISTA == QSysInfo::WindowsVersion ? true : false
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#else
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false
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#endif
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).toBool () ? 1u : 4u;
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settings.endGroup ();
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// Multiple instances: Call MainWindow() with the UUID key
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MainWindow w(&settings, &mem_jt9, &my_key, fontSize2, fontWeight2, downSampleFactor);
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w.show();
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QObject::connect (&a, SIGNAL (lastWindowClosed()), &a, SLOT (quit()));
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return a.exec();
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}
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