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sdrangel/plugins/channeltx/moddatv/dvb-s2/DVBS2.h

82 lines
3.1 KiB
C++

///////////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2021 Jon Beniston, M7RCE <jon@beniston.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/>. //
///////////////////////////////////////////////////////////////////////////////////////
#include "DVB2.h"
#ifndef __SCMPLX__
typedef struct{
short re;
short im;
}scmplx;
#endif
#ifndef DVBS2_H
#define DVBS2_H
#ifndef M_PI
#define M_PI 3.14159f
#endif
#define loggerf printf
class DVBS2 : public DVB2{
private:
const static unsigned long g[6];
const static int ph_scram_tab[64];
const static int ph_sync_seq[26];
scmplx m_bpsk[2][2];
scmplx m_qpsk[4];
scmplx m_8psk[8];
scmplx m_16apsk[16];
scmplx m_32apsk[32];
scmplx m_pl[FRAME_SIZE_NORMAL];
scmplx m_pl_dummy[FRAME_SIZE_NORMAL];
int m_cscram[FRAME_SIZE_NORMAL];
int m_iframe[FRAME_SIZE_NORMAL];
int m_payload_symbols;
int m_dummy_frame_length;
int m_configured;
double m_efficiency;
int m_s2_config_updated;
void b_64_7_code( unsigned char in, int *out );
void s2_pl_header_encode( u8 modcod, u8 type, int *out);
void modulator_configuration(void);
void s2_interleave( void );
void s2_pl_header_create(void);
int s2_pl_data_pack( void );
void pl_scramble_symbols( scmplx *fs, int len );
void pl_scramble_dummy_symbols( int len );
void pl_build_dummy( void );
int parity_chk( long a, long b);
void build_symbol_scrambler_table( void );
void calc_efficiency( void );
void end_of_frame_actions(void);
public:
int is_valid(int mod, int coderate);
double s2_get_efficiency( void );
void physical(void);
int s2_set_configure( DVB2FrameFormat *f );
void s2_get_configure( DVB2FrameFormat *f );
scmplx *pl_get_frame(void);
scmplx *pl_get_dummy( int &len );
int s2_add_ts_frame( u8 *ts );
DVBS2();
};
#endif