?? dp_shmap.h
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/* * PCM decoding related stuff? * * Copyright (c) 2000 Richard J.M. Close * * Can be distributed under GPL */#ifndef LT_SHMAP_H#define LT_SHMAP_H 1#include "stdbool.h"#include <stdio.h>#include "modem_globals.h"#include "dp_vpcm.h"void dp_init_vpcm_decoder(void);void dp_vpcm_decoder(void);unsigned short pack_vpcm_bits(unsigned char arg1 , unsigned char* Kbuff);unsigned short dp_demod_cnv(unsigned char* buff1, unsigned short arg2, unsigned char* buff2);unsigned char vpcm_RxSymbolBitProc(unsigned char* KBuff);unsigned char descrambyte_pcm(unsigned char rawByte);unsigned short descramword_pcm(unsigned short rawData);// VPCM decoding stuff.unsigned char stored_K_bytes[6];unsigned char vpcm_rx_K_size;unsigned char J1[8];unsigned int vpcmModulus[6]; unsigned short Vpcm_M_Level[6];unsigned short VpcmRate;unsigned short VpcmMinDist;unsigned short old_K_bytes_num;unsigned char num_sign_bits;unsigned char lo_demap_data, lo_bit_ctr;unsigned int scramLong, descramLong;unsigned char vpcm_D_low_bits;unsigned char vpcm_D_high_bits;unsigned char* io_pdm_rx_rptr;unsigned char* io_pdm_rx_wptr;unsigned char* io_pdm_rx_eptr;unsigned char* io_pdm_rx_sptr;unsigned char dp_sh_buffer[0x4c0];unsigned char dp_desc_buffer[0x4c0];#endif
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