FreeCalypso > hg > gsm-codec-lib

changeset 334:dfaa8f322a8d

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libtwamr: integrate d4_17pf.c
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 18 Apr 2024 22:30:03 +0000
parents f4a5545ea8b2
children 03198f6b0427
files libtwamr/Makefile libtwamr/d4_17pf.c libtwamr/d4_17pf.h libtwamr/namespace.h
diffstat 4 files changed, 174 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/libtwamr/Makefile	Thu Apr 18 22:23:42 2024 +0000
+++ b/libtwamr/Makefile	Thu Apr 18 22:30:03 2024 +0000
@@ -3,9 +3,9 @@
 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\
-	d1035pf.o d2_11pf.o d2_9pf.o d3_14pf.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 d2_11pf.o d2_9pf.o d3_14pf.o d4_17pf.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/d4_17pf.c	Thu Apr 18 22:30:03 2024 +0000
@@ -0,0 +1,114 @@
+/*
+********************************************************************************
+*
+*      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             : d4_17pf.c
+*      Purpose          : Algebraic codebook decoder
+*
+********************************************************************************
+*/
+
+/*
+********************************************************************************
+*                         MODULE INCLUDE FILE AND VERSION ID
+********************************************************************************
+*/
+#include "namespace.h"
+#include "d4_17pf.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 4
+ 
+/*
+********************************************************************************
+*                         PUBLIC PROGRAM CODE
+********************************************************************************
+*/
+/*************************************************************************
+ *
+ *  FUNCTION:  decod_ACELP()
+ *
+ *  PURPOSE:   Algebraic codebook decoder
+ *
+ *************************************************************************/
+
+void decode_4i40_17bits(
+    Word16 sign,   /* i : signs of 4 pulses.                       */
+    Word16 index,  /* i : Positions of the 4 pulses.               */
+    Word16 cod[]   /* o : algebraic (fixed) codebook excitation    */
+)
+{
+    Word16 i, j;
+    Word16 pos[NB_PULSE];
+
+    /* Decode the positions */
+
+    i = index & 7;                                       logic16 ();
+    i = dgray[i];                                        move16 ();
+
+    pos[0] = add(i, shl(i, 2));   /* pos0 =i*5 */        move16 ();
+
+    index = shr(index, 3);
+    i = index & 7;                                       logic16 ();
+    i = dgray[i];                                        move16 ();
+
+    i = add(i, shl(i, 2));        /* pos1 =i*5+1 */
+    pos[1] = add(i, 1);                                  move16 ();
+
+    index = shr(index, 3);
+    i = index & 7;                                       logic16 ();
+    i = dgray[i];                                        move16 ();
+
+    i = add(i, shl(i, 2));        /* pos2 =i*5+1 */
+    pos[2] = add(i, 2);                                  move16 ();
+
+    index = shr(index, 3);
+    j = index & 1;                                       logic16 ();
+    index = shr(index, 1);
+    i = index & 7;                                       logic16 ();
+    i = dgray[i];                                        move16 ();
+
+    i = add(i, shl(i, 2));        /* pos3 =i*5+3+j */
+    i = add(i, 3);
+    pos[3] = add(i, j);                                  move16 ();
+
+    /* decode the signs  and build the codeword */
+
+    for (i = 0; i < L_SUBFR; i++) {
+        cod[i] = 0;                                      move16 ();
+    }
+
+    for (j = 0; j < NB_PULSE; j++) {
+        i = sign & 1;                                    logic16 ();
+        sign = shr(sign, 1);
+
+        test ();
+        if (i != 0) {
+            cod[pos[j]] = 8191;                          move16 ();
+        } else {
+            cod[pos[j]] = -8192;                         move16 ();
+        }
+    }
+
+    return;
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libtwamr/d4_17pf.h	Thu Apr 18 22:30:03 2024 +0000
@@ -0,0 +1,56 @@
+/*
+********************************************************************************
+*
+*      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             : d4_17pf.h
+*      Purpose          : Algebraic codebook decoder
+*
+********************************************************************************
+*/
+#ifndef d4_17pf_h
+#define d4_17pf_h "$Id $"
+
+/*
+********************************************************************************
+*                         INCLUDE FILES
+********************************************************************************
+*/
+#include "typedef.h"
+
+/*
+********************************************************************************
+*                         LOCAL VARIABLES AND TABLES
+********************************************************************************
+*/
+ 
+/*
+********************************************************************************
+*                         DEFINITION OF DATA TYPES
+********************************************************************************
+*/
+
+/*
+********************************************************************************
+*                         DECLARATION OF PROTOTYPES
+********************************************************************************
+*/
+/*************************************************************************
+ *
+ *  FUNCTION:  decod_ACELP()
+ *
+ *  PURPOSE:   Algebraic codebook decoder
+ *
+ *************************************************************************/
+
+void decode_4i40_17bits(
+    Word16 sign,   /* i : signs of 4 pulses.                       */
+    Word16 index,  /* i : Positions of the 4 pulses.               */
+    Word16 cod[]   /* o : algebraic (fixed) codebook excitation    */
+);
+
+#endif
--- a/libtwamr/namespace.h	Thu Apr 18 22:23:42 2024 +0000
+++ b/libtwamr/namespace.h	Thu Apr 18 22:30:03 2024 +0000
@@ -111,6 +111,7 @@
 #define	decode_2i40_9bits	AMR__decode_2i40_9bits
 #define	decode_2i40_11bits	AMR__decode_2i40_11bits
 #define	decode_3i40_14bits	AMR__decode_3i40_14bits
+#define	decode_4i40_17bits	AMR__decode_4i40_17bits
 #define	dec_10i40_35bits	AMR__dec_10i40_35bits
 
 #endif	/* include guard */