2023-11-18 06:02:48 -05:00
|
|
|
///////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
// Copyright (C) 2019 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
|
|
|
|
|
// //
|
|
|
|
|
// 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/>. //
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////////////
|
2019-03-17 16:31:42 -04:00
|
|
|
#include "dvb.h"
|
|
|
|
|
|
|
|
|
|
namespace leansdr
|
|
|
|
|
{
|
|
|
|
|
|
|
|
|
|
deconvol_sync_simple *make_deconvol_sync_simple(scheduler *sch,
|
|
|
|
|
pipebuf<eucl_ss> &_in,
|
|
|
|
|
pipebuf<u8> &_out,
|
|
|
|
|
enum code_rate rate)
|
|
|
|
|
{
|
|
|
|
|
// EN 300 421, section 4.4.3 Inner coding
|
|
|
|
|
uint32_t pX, pY;
|
|
|
|
|
switch (rate)
|
|
|
|
|
{
|
|
|
|
|
case FEC12:
|
|
|
|
|
pX = 0x1; // 1
|
|
|
|
|
pY = 0x1; // 1
|
|
|
|
|
break;
|
|
|
|
|
case FEC23:
|
|
|
|
|
case FEC46:
|
|
|
|
|
pX = 0xa; // 1010 (Handle as FEC4/6, no half-symbols)
|
|
|
|
|
pY = 0xf; // 1111
|
|
|
|
|
break;
|
|
|
|
|
case FEC34:
|
|
|
|
|
pX = 0x5; // 101
|
|
|
|
|
pY = 0x6; // 110
|
|
|
|
|
break;
|
|
|
|
|
case FEC56:
|
|
|
|
|
pX = 0x15; // 10101
|
|
|
|
|
pY = 0x1a; // 11010
|
|
|
|
|
break;
|
|
|
|
|
case FEC78:
|
|
|
|
|
pX = 0x45; // 1000101
|
|
|
|
|
pY = 0x7a; // 1111010
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
//fail("Code rate not implemented");
|
|
|
|
|
// For testing DVB-S2 constellations.
|
|
|
|
|
fprintf(stderr, "Code rate not implemented; proceeding anyway\n");
|
|
|
|
|
pX = pY = 1;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return new deconvol_sync_simple(sch, _in, _out, DVBS_G1, DVBS_G2, pX, pY);
|
|
|
|
|
}
|
|
|
|
|
|
2023-11-18 06:02:48 -05:00
|
|
|
} // leansdr
|
