# HG changeset patch
# User Mychaela Falconia <falcon@freecalypso.org>
# Date 1712970637 0
# Node ID ffdcdb27d673d127963f05204e9c01541e4f5fb4
# Parent  573afa985df63dbed348f2c84f6093a57fb89bfe
libgsmfr2: integrate e/d state from TU-Berlin code

diff -r 573afa985df6 -r ffdcdb27d673 libgsmfr2/Makefile
--- a/libgsmfr2/Makefile	Sat Apr 13 00:43:36 2024 +0000
+++ b/libgsmfr2/Makefile	Sat Apr 13 01:10:37 2024 +0000
@@ -1,9 +1,9 @@
 CC=	gcc
 CFLAGS=	-O2
-OBJS=	comfort_noise.o pack_frame.o pack_frame2.o pp_bad.o pp_good.o \
-	pp_state.o prng.o sidclass.o silence_frame.o unpack_frame.o \
+OBJS=	comfort_noise.o ed_state.o pack_frame.o pack_frame2.o pp_bad.o \
+	pp_good.o pp_state.o prng.o sidclass.o silence_frame.o unpack_frame.o \
 	unpack_frame2.o xmaxc_mean.o
-HDRS=	pp_internal.h pp_state.h tw_gsmfr.h typedef.h
+HDRS=	ed_state.h pp_internal.h pp_state.h tw_gsmfr.h typedef.h
 LIB=	libgsmfr2.a
 
 INSTALL_PREFIX=	/usr/local
diff -r 573afa985df6 -r ffdcdb27d673 libgsmfr2/ed_state.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgsmfr2/ed_state.c	Sat Apr 13 01:10:37 2024 +0000
@@ -0,0 +1,28 @@
+/*
+ * In this module we implement allocation and initialization
+ * of state structures for our GSM 06.10 encoder & decoder
+ * based on libgsm from TU-Berlin.
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include "tw_gsmfr.h"
+#include "typedef.h"
+#include "ed_state.h"
+
+struct gsmfr_0610_state *gsmfr_0610_create(void)
+{
+	struct gsmfr_0610_state *st;
+
+	st = malloc(sizeof(struct gsmfr_0610_state));
+	if (st)
+		gsmfr_0610_reset(st);
+	return st;
+}
+
+void gsmfr_0610_reset(struct gsmfr_0610_state *st)
+{
+	memset(st, 0, sizeof(struct gsmfr_0610_state));
+	st->nrp = 40;
+}
diff -r 573afa985df6 -r ffdcdb27d673 libgsmfr2/ed_state.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgsmfr2/ed_state.h	Sat Apr 13 01:10:37 2024 +0000
@@ -0,0 +1,21 @@
+/*
+ * This header file is internal to libgsmfr2;
+ * here we define our state structure for GSM 06.10 encoder & decoder component.
+ */
+
+struct gsmfr_0610_state {
+	word		dp0[ 280 ];
+	word		e[ 50 ];	/* code.c 			*/
+
+	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		nrp; /* 40 */	/* long_term.c, synthesis	*/
+	word		v[9];		/* short_term.c, synthesis	*/
+	word		msr;		/* decoder.c,	Postprocessing	*/
+};
diff -r 573afa985df6 -r ffdcdb27d673 libgsmfr2/typedef.h
--- a/libgsmfr2/typedef.h	Sat Apr 13 00:43:36 2024 +0000
+++ b/libgsmfr2/typedef.h	Sat Apr 13 01:10:37 2024 +0000
@@ -8,3 +8,9 @@
 
 typedef uint16_t uword;
 typedef uint32_t ulongword;
+
+#define	MIN_WORD	(-32767 - 1)
+#define	MAX_WORD	  32767
+
+#define	MIN_LONGWORD	(-2147483647 - 1)
+#define	MAX_LONGWORD	  2147483647