X-Git-Url: https://scm.cri.ensmp.fr/git/Faustine.git/blobdiff_plain/1059e1cc0c2ecfa237406949aa26155b6a5b9154..66f23d4fabf89ad09adbd4dfc15ac6b5b2b7da83:/interpreter/lib/src/libsndfile-1.0.25/src/GSM610/gsm610_priv.h diff --git a/interpreter/lib/src/libsndfile-1.0.25/src/GSM610/gsm610_priv.h b/interpreter/lib/src/libsndfile-1.0.25/src/GSM610/gsm610_priv.h new file mode 100644 index 0000000..e121c1c --- /dev/null +++ b/interpreter/lib/src/libsndfile-1.0.25/src/GSM610/gsm610_priv.h @@ -0,0 +1,301 @@ +/* + * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische + * Universitaet Berlin. See the accompanying file "COPYRIGHT" for + * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. + */ + +#ifndef PRIVATE_H +#define PRIVATE_H + +/* Added by Erik de Castro Lopo */ +#define USE_FLOAT_MUL +#define FAST +#define WAV49 + +#ifdef __cplusplus +#error "This code is not designed to be compiled with a C++ compiler." +#endif +/* Added by Erik de Castro Lopo */ + + + +typedef short word; /* 16 bit signed int */ +typedef int longword; /* 32 bit signed int */ + +typedef unsigned short uword; /* unsigned word */ +typedef unsigned int ulongword; /* unsigned longword */ + +struct gsm_state +{ word dp0[ 280 ] ; + + word z1; /* preprocessing.c, Offset_com. */ + longword L_z2; /* Offset_com. */ + int mp; /* Preemphasis */ + + word u[8] ; /* short_term_aly_filter.c */ + word LARpp[2][8] ; /* */ + word j; /* */ + + word ltp_cut; /* long_term.c, LTP crosscorr. */ + word nrp; /* 40 */ /* long_term.c, synthesis */ + word v[9] ; /* short_term.c, synthesis */ + word msr; /* decoder.c, Postprocessing */ + + char verbose; /* only used if !NDEBUG */ + char fast; /* only used if FAST */ + + char wav_fmt; /* only used if WAV49 defined */ + unsigned char frame_index; /* odd/even chaining */ + unsigned char frame_chain; /* half-byte to carry forward */ + + /* Moved here from code.c where it was defined as static */ + word e[50] ; +} ; + +typedef struct gsm_state GSM_STATE ; + +#define MIN_WORD (-32767 - 1) +#define MAX_WORD 32767 + +#define MIN_LONGWORD (-2147483647 - 1) +#define MAX_LONGWORD 2147483647 + +/* Signed arithmetic shift right. */ +static inline word +SASR_W (word x, word by) +{ return (x >> by) ; +} /* SASR */ + +static inline longword +SASR_L (longword x, word by) +{ return (x >> by) ; +} /* SASR */ + +/* + * Prototypes from add.c + */ +word gsm_mult (word a, word b) ; +longword gsm_L_mult (word a, word b) ; +word gsm_mult_r (word a, word b) ; + +word gsm_div (word num, word denum) ; + +word gsm_add (word a, word b ) ; +longword gsm_L_add (longword a, longword b ) ; + +word gsm_sub (word a, word b) ; +longword gsm_L_sub (longword a, longword b) ; + +word gsm_abs (word a) ; + +word gsm_norm (longword a ) ; + +longword gsm_L_asl (longword a, int n) ; +word gsm_asl (word a, int n) ; + +longword gsm_L_asr (longword a, int n) ; +word gsm_asr (word a, int n) ; + +/* + * Inlined functions from add.h + */ + +static inline longword +GSM_MULT_R (word a, word b) +{ return (((longword) (a)) * ((longword) (b)) + 16384) >> 15 ; +} /* GSM_MULT_R */ + +static inline longword +GSM_MULT (word a, word b) +{ return (((longword) (a)) * ((longword) (b))) >> 15 ; +} /* GSM_MULT */ + +static inline longword +GSM_L_MULT (word a, word b) +{ return ((longword) (a)) * ((longword) (b)) << 1 ; +} /* GSM_L_MULT */ + +static inline longword +GSM_L_ADD (longword a, longword b) +{ ulongword utmp ; + + if (a < 0 && b < 0) + { utmp = (ulongword)-((a) + 1) + (ulongword)-((b) + 1) ; + return (utmp >= (ulongword) MAX_LONGWORD) ? MIN_LONGWORD : -(longword)utmp-2 ; + } ; + + if (a > 0 && b > 0) + { utmp = (ulongword) a + (ulongword) b ; + return (utmp >= (ulongword) MAX_LONGWORD) ? MAX_LONGWORD : utmp ; + } ; + + return a + b ; +} /* GSM_L_ADD */ + +static inline longword +GSM_ADD (word a, word b) +{ longword ltmp ; + + ltmp = ((longword) a) + ((longword) b) ; + + if (ltmp >= MAX_WORD) + return MAX_WORD ; + if (ltmp <= MIN_WORD) + return MIN_WORD ; + + return ltmp ; +} /* GSM_ADD */ + +static inline longword +GSM_SUB (word a, word b) +{ longword ltmp ; + + ltmp = ((longword) a) - ((longword) b) ; + + if (ltmp >= MAX_WORD) + ltmp = MAX_WORD ; + else if (ltmp <= MIN_WORD) + ltmp = MIN_WORD ; + + return ltmp ; +} /* GSM_SUB */ + +static inline word +GSM_ABS (word a) +{ + if (a > 0) + return a ; + if (a == MIN_WORD) + return MAX_WORD ; + return -a ; +} /* GSM_ADD */ + + +/* + * More prototypes from implementations.. + */ +void Gsm_Coder ( + struct gsm_state * S, + word * s, /* [0..159] samples IN */ + word * LARc, /* [0..7] LAR coefficients OUT */ + word * Nc, /* [0..3] LTP lag OUT */ + word * bc, /* [0..3] coded LTP gain OUT */ + word * Mc, /* [0..3] RPE grid selection OUT */ + word * xmaxc,/* [0..3] Coded maximum amplitude OUT */ + word * xMc) ;/* [13*4] normalized RPE samples OUT */ + +void Gsm_Long_Term_Predictor ( /* 4x for 160 samples */ + struct gsm_state * S, + word * d, /* [0..39] residual signal IN */ + word * dp, /* [-120..-1] d' IN */ + word * e, /* [0..40] OUT */ + word * dpp, /* [0..40] OUT */ + word * Nc, /* correlation lag OUT */ + word * bc) ; /* gain factor OUT */ + +void Gsm_LPC_Analysis ( + struct gsm_state * S, + word * s, /* 0..159 signals IN/OUT */ + word * LARc) ; /* 0..7 LARc's OUT */ + +void Gsm_Preprocess ( + struct gsm_state * S, + word * s, word * so) ; + +void Gsm_Encoding ( + struct gsm_state * S, + word * e, + word * ep, + word * xmaxc, + word * Mc, + word * xMc) ; + +void Gsm_Short_Term_Analysis_Filter ( + struct gsm_state * S, + word * LARc, /* coded log area ratio [0..7] IN */ + word * d) ; /* st res. signal [0..159] IN/OUT */ + +void Gsm_Decoder ( + struct gsm_state * S, + word * LARcr, /* [0..7] IN */ + word * Ncr, /* [0..3] IN */ + word * bcr, /* [0..3] IN */ + word * Mcr, /* [0..3] IN */ + word * xmaxcr, /* [0..3] IN */ + word * xMcr, /* [0..13*4] IN */ + word * s) ; /* [0..159] OUT */ + +void Gsm_Decoding ( + struct gsm_state * S, + word xmaxcr, + word Mcr, + word * xMcr, /* [0..12] IN */ + word * erp) ; /* [0..39] OUT */ + +void Gsm_Long_Term_Synthesis_Filtering ( + struct gsm_state* S, + word Ncr, + word bcr, + word * erp, /* [0..39] IN */ + word * drp) ; /* [-120..-1] IN, [0..40] OUT */ + +void Gsm_RPE_Decoding ( + /*-struct gsm_state *S,-*/ + word xmaxcr, + word Mcr, + word * xMcr, /* [0..12], 3 bits IN */ + word * erp) ; /* [0..39] OUT */ + +void Gsm_RPE_Encoding ( + /*-struct gsm_state * S,-*/ + word * e, /* -5..-1][0..39][40..44 IN/OUT */ + word * xmaxc, /* OUT */ + word * Mc, /* OUT */ + word * xMc) ; /* [0..12] OUT */ + +void Gsm_Short_Term_Synthesis_Filter ( + struct gsm_state * S, + word * LARcr, /* log area ratios [0..7] IN */ + word * drp, /* received d [0...39] IN */ + word * s) ; /* signal s [0..159] OUT */ + +void Gsm_Update_of_reconstructed_short_time_residual_signal ( + word * dpp, /* [0...39] IN */ + word * ep, /* [0...39] IN */ + word * dp) ; /* [-120...-1] IN/OUT */ + +/* + * Tables from table.c + */ +#ifndef GSM_TABLE_C + +extern word gsm_A [8], gsm_B [8], gsm_MIC [8], gsm_MAC [8] ; +extern word gsm_INVA [8] ; +extern word gsm_DLB [4], gsm_QLB [4] ; +extern word gsm_H [11] ; +extern word gsm_NRFAC [8] ; +extern word gsm_FAC [8] ; + +#endif /* GSM_TABLE_C */ + +/* + * Debugging + */ +#ifdef NDEBUG + +# define gsm_debug_words(a, b, c, d) /* nil */ +# define gsm_debug_longwords(a, b, c, d) /* nil */ +# define gsm_debug_word(a, b) /* nil */ +# define gsm_debug_longword(a, b) /* nil */ + +#else /* !NDEBUG => DEBUG */ + + void gsm_debug_words (char * name, int, int, word *) ; + void gsm_debug_longwords (char * name, int, int, longword *) ; + void gsm_debug_longword (char * name, longword) ; + void gsm_debug_word (char * name, word) ; + +#endif /* !NDEBUG */ + +#endif /* PRIVATE_H */ +