mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-14 04:11:48 -05:00
149 lines
3.9 KiB
C++
149 lines
3.9 KiB
C++
/* unit.hpp
|
|
|
|
This file is part of a program that implements a Software-Defined Radio.
|
|
|
|
Copyright (C) 2013 Warren Pratt, NR0V
|
|
Copyright (C) 2024 Edouard Griffiths, F4EXB Adapted to SDRangel
|
|
|
|
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; either version 2
|
|
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 for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
|
|
The author can be reached by email at
|
|
|
|
warren@wpratt.com
|
|
|
|
*/
|
|
|
|
#include <algorithm>
|
|
|
|
#include "unit.hpp"
|
|
|
|
namespace WDSP {
|
|
|
|
Unit::Unit(
|
|
int _in_rate, // input samplerate
|
|
int _out_rate, // output samplerate
|
|
int _dsp_rate, // sample rate for mainstream dsp processing
|
|
int _dsp_size // number complex samples processed per buffer in mainstream dsp processing
|
|
) :
|
|
in_rate{_in_rate},
|
|
out_rate(_out_rate),
|
|
dsp_rate(_dsp_rate),
|
|
dsp_size(_dsp_size)
|
|
{
|
|
if (_in_rate >= _dsp_rate)
|
|
dsp_insize = _dsp_size * (_in_rate / _dsp_rate);
|
|
else
|
|
dsp_insize = _dsp_size / (_dsp_rate / _in_rate);
|
|
|
|
if (_out_rate >= _dsp_rate)
|
|
dsp_outsize = _dsp_size * (_out_rate / _dsp_rate);
|
|
else
|
|
dsp_outsize = _dsp_size / (_dsp_rate / _out_rate);
|
|
|
|
// buffers
|
|
inbuff = new float[1 * dsp_insize * 2];
|
|
outbuff = new float[1 * dsp_outsize * 2];
|
|
midbuff = new float[2 * dsp_size * 2];
|
|
}
|
|
|
|
Unit::~Unit()
|
|
{
|
|
delete[] inbuff;
|
|
delete[] outbuff;
|
|
delete[] midbuff;
|
|
}
|
|
|
|
void Unit::flushBuffers()
|
|
{
|
|
std::fill(inbuff, inbuff + 1 * dsp_insize * 2, 0);
|
|
std::fill(outbuff, outbuff + 1 * dsp_outsize * 2, 0);
|
|
std::fill(midbuff, midbuff + 2 * dsp_size * 2, 0);
|
|
}
|
|
|
|
void Unit::setBuffersInputSamplerate(int _in_rate)
|
|
{
|
|
if (_in_rate >= dsp_rate)
|
|
dsp_insize = dsp_size * (_in_rate / dsp_rate);
|
|
else
|
|
dsp_insize = dsp_size / (dsp_rate / _in_rate);
|
|
|
|
in_rate = _in_rate;
|
|
|
|
// buffers
|
|
delete[] (inbuff);
|
|
inbuff = new float[1 * dsp_insize * 2];
|
|
}
|
|
|
|
void Unit::setBuffersOutputSamplerate(int _out_rate)
|
|
{
|
|
if (_out_rate >= dsp_rate)
|
|
dsp_outsize = dsp_size * (_out_rate / dsp_rate);
|
|
else
|
|
dsp_outsize = dsp_size / (dsp_rate / _out_rate);
|
|
|
|
out_rate = _out_rate;
|
|
|
|
// buffers
|
|
delete[] outbuff;
|
|
outbuff = new float[1 * dsp_outsize * 2];
|
|
}
|
|
|
|
void Unit::setBuffersDSPSamplerate(int _dsp_rate)
|
|
{
|
|
if (in_rate >= _dsp_rate)
|
|
dsp_insize = dsp_size * (in_rate / _dsp_rate);
|
|
else
|
|
dsp_insize = dsp_size / (_dsp_rate / in_rate);
|
|
|
|
if (out_rate >= _dsp_rate)
|
|
dsp_outsize = dsp_size * (out_rate / _dsp_rate);
|
|
else
|
|
dsp_outsize = dsp_size / (_dsp_rate / out_rate);
|
|
|
|
dsp_rate = _dsp_rate;
|
|
|
|
// buffers
|
|
delete[] inbuff;
|
|
inbuff = new float[1 * dsp_insize * 2];
|
|
delete[] outbuff;
|
|
outbuff = new float[1 * dsp_outsize * 2];
|
|
}
|
|
|
|
void Unit::setBuffersDSPBuffsize(int _dsp_size)
|
|
{
|
|
if (in_rate >= dsp_rate)
|
|
dsp_insize = _dsp_size * (in_rate / dsp_rate);
|
|
else
|
|
dsp_insize = _dsp_size / (dsp_rate / in_rate);
|
|
|
|
if (out_rate >= dsp_rate)
|
|
dsp_outsize = _dsp_size * (out_rate / dsp_rate);
|
|
else
|
|
dsp_outsize = _dsp_size / (dsp_rate / out_rate);
|
|
|
|
dsp_size = _dsp_size;
|
|
|
|
// buffers
|
|
delete[]inbuff;
|
|
inbuff = new float[1 * dsp_insize * 2];
|
|
delete[] midbuff;
|
|
midbuff = new float[2 * dsp_size * 2];
|
|
delete[] outbuff;
|
|
outbuff = new float[1 * dsp_outsize * 2];
|
|
}
|
|
|
|
|
|
} // namespace
|