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view libgsmhr1/dec_state.h @ 602:72cdae602d6e

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libgsmhr1/dec_func.c: rm unused static functions In the original code, sp_dec.c held two kinds of functions: those needed only as part of the decoder, and those used by both decoder and encoder engines. In this library, we have moved the latter class of functions to dec_func.c module. Almost all static functions from the original sp_dec.c, with the exception of aToRc(), are needed only on sp_dec.c side of the new divide - remove them from dec_func.c, where they became dead code.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 04 Dec 2025 18:58:22 +0000
parents c7c03231002d
children
line wrap: on
line source

/*
 * This library-internal header file provides definition for
 * struct gsmhr_decoder_state, the state structure for our speech
 * decoder engine - the full endpoint version, as opposed to TFO
 * transform.
 */

#ifndef dec_state_h
#define dec_state_h

#include "typedefs.h"
#include "rxfe.h"

#define  LTP_LEN      147              /* 147==0x93 length of LTP history */

struct gsmhr_decoder_state {
	struct gsmhr_rxfe_state rxfe;
	int is_homed;
	/* state variables from err_conc.c */
	Longword plSubfrEnergyMem[4];
	Shortword swLevelMem[4];
	/* state variables from sp_dec.c */
	Shortword gswPostFiltAgcGain;
	Shortword gpswPostFiltStateNum[NP];
	Shortword gpswPostFiltStateDenom[NP];
	Shortword swPostEmphasisState;
	Shortword pswSynthFiltState[NP];
	Shortword pswOldFrmKsDec[NP];
	Shortword pswOldFrmAsDec[NP];
	Shortword pswOldFrmPFNum[NP];
	Shortword pswOldFrmPFDenom[NP];
	Shortword swOldR0Dec;
	Shortword pswLtpStateBaseDec[LTP_LEN + S_LEN];
	Shortword pswPPreState[LTP_LEN + S_LEN];
	Shortword swMuteFlagOld;
	/* comfort noise interpolation */
	Shortword swRxDTXState;
	Shortword swR0OldCN;
	Longword pL_OldCorrSeq[NP + 1];
	Longword pL_NewCorrSeq[NP + 1];
	Longword pL_CorrSeq[NP + 1];
};

#endif