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sdrangel/plugins/samplesource/filesource/filesourcesettings.cpp

123 lines
3.2 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2017 Edouard Griffiths, F4EXB //
// //
// 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 //
// //
// 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#include "util/simpleserializer.h"
#include "filesourcesettings.h"
const unsigned int FileSourceSettings::m_accelerationMaxScale = 2;
FileSourceSettings::FileSourceSettings()
{
resetToDefaults();
}
void FileSourceSettings::resetToDefaults()
{
m_centerFrequency = 435000000;
m_sampleRate = 48000;
m_fileName = "./test.sdriq";
m_accelerationFactor = 1;
m_loop = true;
}
QByteArray FileSourceSettings::serialize() const
{
SimpleSerializer s(1);
s.writeString(1, m_fileName);
s.writeU32(2, m_accelerationFactor);
s.writeBool(3, m_loop);
return s.final();
}
bool FileSourceSettings::deserialize(const QByteArray& data)
{
SimpleDeserializer d(data);
if(!d.isValid()) {
resetToDefaults();
return false;
}
if(d.getVersion() == 1) {
d.readString(1, &m_fileName, "./test.sdriq");
d.readU32(2, &m_accelerationFactor, 1);
d.readBool(3, &m_loop, true);
return true;
} else {
resetToDefaults();
return false;
}
}
int FileSourceSettings::getAccelerationIndex(int accelerationValue)
{
if (accelerationValue <= 1) {
return 0;
}
int v = accelerationValue;
int j = 0;
for (int i = 0; i <= accelerationValue; i++)
{
if (v < 20)
{
if (v < 2) {
j = 0;
} else if (v < 5) {
j = 1;
} else if (v < 10) {
j = 2;
} else {
j = 3;
}
return 3*i + j;
}
v /= 10;
}
return 3*m_accelerationMaxScale + 3;
}
int FileSourceSettings::getAccelerationValue(int accelerationIndex)
{
if (accelerationIndex <= 0) {
return 1;
}
unsigned int v = accelerationIndex - 1;
int m = pow(10.0, v/3 > m_accelerationMaxScale ? m_accelerationMaxScale : v/3);
int x;
if (v % 3 == 0) {
x = 2;
} else if (v % 3 == 1) {
x = 5;
} else if (v % 3 == 2) {
x = 10;
}
return x * m;
}