MMDVMHost-Private/M17Defines.h

76 lines
3.4 KiB
C

/*
* Copyright (C) 2020,2021 by Jonathan Naylor G4KLX
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(M17DEFINES_H)
#define M17DEFINES_H
const unsigned int M17_RADIO_SYMBOL_LENGTH = 5U; // At 24 kHz sample rate
const unsigned int M17_FRAME_LENGTH_BITS = 384U;
const unsigned int M17_FRAME_LENGTH_BYTES = M17_FRAME_LENGTH_BITS / 8U;
const unsigned char M17_LINK_SETUP_SYNC_BYTES[] = {0x55U, 0xF7U};
const unsigned char M17_STREAM_SYNC_BYTES[] = {0xFFU, 0x5DU};
const unsigned char M17_PACKET_SYNC_BYTES[] = {0x75U, 0xFFU};
const unsigned int M17_SYNC_LENGTH_BITS = 16U;
const unsigned int M17_SYNC_LENGTH_BYTES = M17_SYNC_LENGTH_BITS / 8U;
const unsigned int M17_LSF_LENGTH_BITS = 240U;
const unsigned int M17_LSF_LENGTH_BYTES = M17_LSF_LENGTH_BITS / 8U;
const unsigned int M17_LSF_FRAGMENT_LENGTH_BITS = M17_LSF_LENGTH_BITS / 6U;
const unsigned int M17_LSF_FRAGMENT_LENGTH_BYTES = M17_LSF_FRAGMENT_LENGTH_BITS / 8U;
const unsigned int M17_LICH_FRAGMENT_LENGTH_BITS = M17_LSF_FRAGMENT_LENGTH_BITS + 8U;
const unsigned int M17_LICH_FRAGMENT_LENGTH_BYTES = M17_LICH_FRAGMENT_LENGTH_BITS / 8U;
const unsigned int M17_LSF_FRAGMENT_FEC_LENGTH_BITS = M17_LSF_FRAGMENT_LENGTH_BITS * 2U;
const unsigned int M17_LSF_FRAGMENT_FEC_LENGTH_BYTES = M17_LSF_FRAGMENT_FEC_LENGTH_BITS / 8U;
const unsigned int M17_LICH_FRAGMENT_FEC_LENGTH_BITS = M17_LICH_FRAGMENT_LENGTH_BITS * 2U;
const unsigned int M17_LICH_FRAGMENT_FEC_LENGTH_BYTES = M17_LICH_FRAGMENT_FEC_LENGTH_BITS / 8U;
const unsigned int M17_PAYLOAD_LENGTH_BITS = 128U;
const unsigned int M17_PAYLOAD_LENGTH_BYTES = M17_PAYLOAD_LENGTH_BITS / 8U;
const unsigned char M17_NULL_NONCE[] = {0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U, 0x00U};
const unsigned int M17_NONCE_LENGTH_BITS = 112U;
const unsigned int M17_NONCE_LENGTH_BYTES = M17_NONCE_LENGTH_BITS / 8U;
const unsigned int M17_FN_LENGTH_BITS = 16U;
const unsigned int M17_FN_LENGTH_BYTES = M17_FN_LENGTH_BITS / 8U;
const unsigned int M17_CRC_LENGTH_BITS = 16U;
const unsigned int M17_CRC_LENGTH_BYTES = M17_CRC_LENGTH_BITS / 8U;
const unsigned char M17_3200_SILENCE[] = {0x01U, 0x00U, 0x09U, 0x43U, 0x9CU, 0xE4U, 0x21U, 0x08U};
const unsigned char M17_1600_SILENCE[] = {0x01U, 0x00U, 0x04U, 0x00U, 0x25U, 0x75U, 0xDDU, 0xF2U};
const unsigned char M17_PACKET_TYPE = 0U;
const unsigned char M17_STREAM_TYPE = 1U;
const unsigned char M17_DATA_TYPE_DATA = 0x01U;
const unsigned char M17_DATA_TYPE_VOICE = 0x02U;
const unsigned char M17_DATA_TYPE_VOICE_DATA = 0x03U;
const unsigned char M17_ENCRYPTION_TYPE_NONE = 0x00U;
const unsigned char M17_ENCRYPTION_TYPE_AES = 0x01U;
const unsigned char M17_ENCRYPTION_TYPE_SCRAMBLE = 0x02U;
#endif