--- a/libgsmhr1/Makefile	Tue Feb 24 04:16:57 2026 +0000
+++ b/libgsmhr1/Makefile	Thu Mar 05 00:56:30 2026 +0000
@@ -1,12 +1,12 @@
 OBJS=	dec_func.o dec_state.o dhf_packed.o dhf_params.o dtx_dec.o dtx_rxfe.o \
-	enc_out_order.o err_conc.o mathdp31.o mathhalf.o pack_frame.o \
-	paramval_cod.o paramval_common.o paramval_dec.o rtp_in.o \
+	enc_out_order.o enc_state.o err_conc.o mathdp31.o mathhalf.o \
+	pack_frame.o paramval_cod.o paramval_common.o paramval_dec.o rtp_in.o \
 	rtp_in_direct.o rxfe.o rxfe_create.o sid_cw_params.o sid_detect.o \
 	sid_reset.o sp_dec.o sp_rom.o tfo.o twts002_in.o twts002_out.o \
 	unpack_frame.o
 HDRS=	dec_func.h dec_state.h dtx_const.h dtx_dec.h dtx_rxfe.h enc_out_order.h\
-	err_conc.h mathdp31.h mathhalf.h namespace.h rxfe.h sp_rom.h tw_gsmhr.h\
-	typedefs.h
+	enc_state.h err_conc.h mathdp31.h mathhalf.h namespace.h rxfe.h \
+	sp_rom.h tw_gsmhr.h typedefs.h
 LIB=	libgsmhr1.a
 
 include ../config.defs

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgsmhr1/enc_state.c	Thu Mar 05 00:56:30 2026 +0000
@@ -0,0 +1,43 @@
+/*
+ * Here we implement gsmhr_encoder_create() and gsmhr_encoder_reset()
+ * functions: allocation and initialization of speech encoder state.
+ */
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include "tw_gsmhr.h"
+#include "typedefs.h"
+#include "namespace.h"
+#include "enc_state.h"
+
+struct gsmhr_encoder_state *gsmhr_encoder_create(int dtx)
+{
+	struct gsmhr_encoder_state *st;
+
+	st = malloc(sizeof(struct gsmhr_encoder_state));
+	if (st)
+		gsmhr_encoder_reset(st, dtx);
+	return st;
+}
+
+static void vad_init_nonzero(struct vad_state *vst)
+{
+	vst->pswRvad[0] = 24576;
+	vst->swNormRvad = 7;
+	vst->swE_thvad = 21;
+	vst->swM_thvad = 21875;
+	vst->swHangCount = -1;
+	vst->swOldLag = 21;
+}
+
+void gsmhr_encoder_reset(struct gsmhr_encoder_state *st, int dtx)
+{
+	int i;
+
+	memset(st, 0, sizeof(struct gsmhr_encoder_state));
+	st->dtx_mode = dtx;
+	vad_init_nonzero(&st->vad);
+	st->swPtch = 1;
+	st->swNElapsed = 50;
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libgsmhr1/enc_state.h	Thu Mar 05 00:56:30 2026 +0000
@@ -0,0 +1,77 @@
+/*
+ * This library-internal header file provides definition for
+ * struct gsmhr_encoder_state, the state structure for our speech
+ * encoder engine.
+ */
+
+#ifndef enc_state_h
+#define enc_state_h
+
+#include "typedefs.h"
+
+#define CG_INT_MACS       6            /* Number of Multiply-Accumulates in */
+                                       /* one interpolation                 */
+#define LMAX            142            /* largest lag (integer sense) */
+#define LSMAX           (LMAX+ CG_INT_MACS/2)   /* Lag Search Array Length */
+#define LPCSTARTINDEX     25           /* Where the LPC analysis window
+                                        * starts */
+#define INBUFFSZ          LPCSTARTINDEX + A_LEN /* Input buffer size  */
+
+#define HNW_BUFF_LEN    LSMAX
+#define LTP_LEN       147              /* 147==0x93 length of LTP history */
+
+struct gsmhr_encoder_state {
+	int dtx_mode;
+	/* state variables from sp_enc.c */
+	Shortword swOldR0;
+	Shortword swOldR0Index;
+	struct NormSw psnsWSfrmEngSpace[2 * N_SUB];
+	Shortword pswHPFXState[4];
+	Shortword pswHPFYState[8];
+	Shortword pswOldFrmKs[NP];
+	Shortword pswOldFrmAs[NP];
+	Shortword pswOldFrmSNWCoefs[NP];
+	Shortword pswWgtSpeechSpace[F_LEN + LMAX + CG_INT_MACS / 2];
+	Shortword pswSpeech[INBUFFSZ];         /* input speech */
+	Shortword swPtch;
+	/* DTX state variables from sp_enc.c */
+	Shortword swTxGsHistPtr;
+	Shortword pswCNVSCode1[N_SUB];
+	Shortword pswCNVSCode2[N_SUB];
+	Shortword pswCNGsp0Code[N_SUB];
+	Shortword pswCNLpc[3];
+	Shortword swCNR0;
+	/* DTX state variables from dtx.c */
+	Shortword swVadFrmCnt;
+	short int siUpdPointer;
+	Shortword swNElapsed;
+	Longword pL_GsHist[N_SUB * (OVERHANG - 1)];
+	/* state variables from sp_frm.c */
+	Shortword pswAnalysisState[NP];
+	Shortword pswWStateNum[NP];
+	Shortword pswWStateDenom[NP];
+	/* state variables from sp_sfrm.c */
+	Shortword pswLtpStateBase[LTP_LEN + S_LEN];
+	Shortword pswHState[NP];
+	Shortword pswHNWState[HNW_BUFF_LEN];
+	/* from vad.c */
+	struct vad_state {
+		Shortword pswRvad[9];
+		Shortword swNormRvad;
+		Shortword swPt_sacf;
+		Shortword swPt_sav0;
+		Shortword swE_thvad;
+		Shortword swM_thvad;
+		Shortword swAdaptCount;
+		Shortword swBurstCount;
+		Shortword swHangCount;
+		Shortword swOldLagCount;
+		Shortword swVeryOldLagCount;
+		Shortword swOldLag;
+		Longword pL_sacf[27];
+		Longword pL_sav0[36];
+		Longword L_lastdm;
+	} vad;
+};
+
+#endif