FreeCalypso > hg > gsm-codec-lib
changeset 330:2cf33c211544
libtwamr: integrate d1035pf.c
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 18 Apr 2024 22:10:26 +0000 |
| parents | e230a4a87bd8 |
| children | c75327562b5e |
| files | libtwamr/Makefile libtwamr/d1035pf.c libtwamr/d1035pf.h libtwamr/namespace.h |
| diffstat | 4 files changed, 157 insertions(+), 2 deletions(-) [+] |
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--- a/libtwamr/Makefile Thu Apr 18 22:02:04 2024 +0000 +++ b/libtwamr/Makefile Thu Apr 18 22:10:26 2024 +0000 @@ -3,8 +3,8 @@ OBJS= a_refl.o agc.o autocorr.o az_lsp.o b_cn_cod.o basicop2.o bgnscd.o \ bitno.o bits2prm.o c1035pf.o c2_11pf.o c2_9pf.o c3_14pf.o c4_17pf.o \ c8_31pf.o c_g_aver.o calc_cor.o calc_en.o cbsearch.o convolve.o cor_h.o\ - gmed_n.o graytab.o inv_sqrt.o log2.o oper_32b.o prmno.o s10_8pf.o \ - set_sign.o sqrt_l.o tls_flags.o window.o + d1035pf.o gmed_n.o graytab.o inv_sqrt.o log2.o oper_32b.o prmno.o \ + s10_8pf.o set_sign.o sqrt_l.o tls_flags.o window.o LIB= libtwamr.a INSTALL_PREFIX= /usr/local
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtwamr/d1035pf.c Thu Apr 18 22:10:26 2024 +0000 @@ -0,0 +1,113 @@ +/* +******************************************************************************** +* +* GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001 +* R99 Version 3.3.0 +* REL-4 Version 4.1.0 +* +******************************************************************************** +* +* File : d1035pf.c +* Purpose : Builds the innovative codevector +* +******************************************************************************** +*/ + + +/* +******************************************************************************** +* MODULE INCLUDE FILE AND VERSION ID +******************************************************************************** +*/ +#include "namespace.h" +#include "d1035pf.h" + +/* +******************************************************************************** +* INCLUDE FILES +******************************************************************************** +*/ +#include "typedef.h" +#include "basic_op.h" +#include "no_count.h" +#include "cnst.h" +#include "graytab.h" + +/* +******************************************************************************** +* LOCAL VARIABLES AND TABLES +******************************************************************************** +*/ +#define NB_PULSE 10 /* number of pulses */ + +/* +******************************************************************************** +* PUBLIC PROGRAM CODE +******************************************************************************** +*/ +/************************************************************************* + * + * FUNCTION: dec_10i40_35bits() + * + * PURPOSE: Builds the innovative codevector from the received + * index of algebraic codebook. + * + * See c1035pf.c for more details about the algebraic codebook structure. + * + *************************************************************************/ +void dec_10i40_35bits ( + Word16 index[], /* (i) : index of 10 pulses (sign+position) */ + Word16 cod[] /* (o) : algebraic (fixed) codebook excitation */ +) +{ + Word16 i, j, pos1, pos2, sign, tmp; + + for (i = 0; i < L_CODE; i++) + { + cod[i] = 0; move16 (); + } + + /* decode the positions and signs of pulses and build the codeword */ + + for (j = 0; j < NB_TRACK; j++) + { + /* compute index i */ + + tmp = index[j]; move16 (); + i = tmp & 7; logic16 (); + i = dgray[i]; move16 (); + + i = extract_l (L_shr (L_mult (i, 5), 1)); + pos1 = add (i, j); /* position of pulse "j" */ + + i = shr (tmp, 3) & 1; logic16 (); + test (); + if (i == 0) + { + sign = 4096; move16 (); /* +1.0 */ + } + else + { + sign = -4096; move16 (); /* -1.0 */ + } + + cod[pos1] = sign; move16 (); + + /* compute index i */ + + i = index[add (j, 5)] & 7; logic16 (); + i = dgray[i]; move16 (); + i = extract_l (L_shr (L_mult (i, 5), 1)); + + pos2 = add (i, j); /* position of pulse "j+5" */ + + test (); + if (sub (pos2, pos1) < 0) + { + sign = negate (sign); + } + cod[pos2] = add (cod[pos2], sign); move16 (); + } + + return; +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtwamr/d1035pf.h Thu Apr 18 22:10:26 2024 +0000 @@ -0,0 +1,41 @@ +/* +******************************************************************************** +* +* GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001 +* R99 Version 3.3.0 +* REL-4 Version 4.1.0 +* +******************************************************************************** +* +* File : d1035pf.h +* Purpose : Builds the innovative codevector +* +******************************************************************************** +*/ +#ifndef d1035pf_h +#define d1035pf_h "$Id $" + +/* +******************************************************************************** +* INCLUDE FILES +******************************************************************************** +*/ +#include "typedef.h" + +/* +******************************************************************************** +* DEFINITION OF DATA TYPES +******************************************************************************** +*/ + +/* +******************************************************************************** +* DECLARATION OF PROTOTYPES +******************************************************************************** +*/ +void dec_10i40_35bits ( + Word16 index[], /* (i) : index of 10 pulses (sign+position) */ + Word16 cod[] /* (o) : algebraic (fixed) codebook excitation */ +); + +#endif
--- a/libtwamr/namespace.h Thu Apr 18 22:02:04 2024 +0000 +++ b/libtwamr/namespace.h Thu Apr 18 22:10:26 2024 +0000 @@ -106,6 +106,7 @@ #define code_4i40_17bits AMR__code_4i40_17bits #define code_8i40_31bits AMR__code_8i10_31bits #define code_10i40_35bits AMR__code_10i40_35bits +#define dec_10i40_35bits AMR__dec_10i40_35bits #define search_10and8i40 AMR__search_10and8i40 #endif /* include guard */