gsm-codec-lib: libtwamr/cod

annotate libtwamr/cod_amr.c @ 458:e26b974f7ba3

doc/AMR-study-utils: update for the current situation

author	Mychaela Falconia <falcon@freecalypso.org>
date	Fri, 10 May 2024 18:45:36 +0000
parents	93d6c6960a46
children

rev	line source
418 93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1 /*
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	3 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	5 * R99 Version 3.3.0
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	6 * REL-4 Version 4.1.0
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	7 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	8 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	9 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	10 * File : cod_amr.c
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	11 * Purpose : Main encoder routine operating on a frame basis.
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	12 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	13 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	14 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	15 #include "namespace.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	16 #include "cod_amr.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	17
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	18 /*
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	19 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	20 * INCLUDE FILES
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	21 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	22 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	23
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	24 #include "typedef.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	25 #include "basic_op.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	26 #include "no_count.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	27 #include "cnst.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	28 #include "memops.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	29 #include "qua_gain.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	30
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	31 #include "lpc.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	32 #include "lsp.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	33 #include "pre_big.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	34 #include "ol_ltp.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	35 #include "p_ol_wgh.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	36 #include "spreproc.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	37 #include "cl_ltp.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	38 #include "pred_lt.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	39 #include "spstproc.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	40 #include "cbsearch.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	41 #include "gain_q.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	42 #include "convolve.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	43 #include "ton_stab.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	44 #include "vad.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	45 #include "dtx_enc.h"
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	46
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	47 /*
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	48 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	49 * LOCAL VARIABLES AND TABLES
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	50 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	51 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	52
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	53 /*
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	54 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	55 * PUBLIC VARIABLES AND TABLES
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	56 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	57 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	58 /* Spectral expansion factors */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	59
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	60 static const Word16 gamma1[M] =
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	61 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	62 30802, 28954, 27217, 25584, 24049,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	63 22606, 21250, 19975, 18777, 17650
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	64 };
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	65
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	66 /* gamma1 differs for the 12k2 coder */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	67 static const Word16 gamma1_12k2[M] =
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	68 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	69 29491, 26542, 23888, 21499, 19349,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	70 17414, 15672, 14105, 12694, 11425
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	71 };
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	72
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	73 static const Word16 gamma2[M] =
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	74 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	75 19661, 11797, 7078, 4247, 2548,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	76 1529, 917, 550, 330, 198
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	77 };
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	78
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	79 /*
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	80 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	81 * PUBLIC PROGRAM CODE
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	82 *****************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	83 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	84
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	85 /*
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	86 **************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	87 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	88 * Function : cod_amr_reset
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	89 * Purpose : Resets state memory
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	90 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	91 **************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	92 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	93 void cod_amr_reset (cod_amrState *st, Flag dtx, Flag use_vad2)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	94 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	95 Word16 i;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	96
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	97 /* save DTX flag */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	98 st->dtx = dtx;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	99
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	100 /-----------------------------------------------------------------------
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	101 * Initialize pointers to speech vector. *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	102 -----------------------------------------------------------------------/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	103
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	104 st->new_speech = st->old_speech + L_TOTAL - L_FRAME; /* New speech */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	105
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	106 st->speech = st->new_speech - L_NEXT; /* Present frame */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	107
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	108 st->p_window = st->old_speech + L_TOTAL - L_WINDOW; /* For LPC window */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	109 st->p_window_12k2 = st->p_window - L_NEXT; /* EFR LPC window: no lookahead */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	110
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	111 /* Initialize static pointers */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	112
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	113 st->wsp = st->old_wsp + PIT_MAX;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	114 st->exc = st->old_exc + PIT_MAX + L_INTERPOL;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	115 st->zero = st->ai_zero + MP1;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	116 st->error = st->mem_err + M;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	117 st->h1 = &st->hvec[L_SUBFR];
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	118
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	119 /* Static vectors to zero */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	120
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	121 Set_zero(st->old_speech, L_TOTAL);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	122 Set_zero(st->old_exc, PIT_MAX + L_INTERPOL);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	123 Set_zero(st->old_wsp, PIT_MAX);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	124 Set_zero(st->mem_syn, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	125 Set_zero(st->mem_w, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	126 Set_zero(st->mem_w0, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	127 Set_zero(st->mem_err, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	128 Set_zero(st->zero, L_SUBFR);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	129 Set_zero(st->hvec, L_SUBFR); /* set to zero "h1[-L_SUBFR..-1]" */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	130
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	131 /* OL LTP states */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	132 for (i = 0; i < 5; i++)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	133 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	134 st->old_lags[i] = 40;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	135 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	136
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	137 /* Reset lpc states */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	138 lpc_reset(&st->lpcSt);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	139
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	140 /* Reset lsp states */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	141 lsp_reset(&st->lspSt);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	142
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	143 /* Reset clLtp states */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	144 cl_ltp_reset(&st->clLtpSt);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	145
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	146 gainQuant_reset(&st->gainQuantSt);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	147
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	148 p_ol_wgh_reset(&st->pitchOLWghtSt);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	149
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	150 ton_stab_reset(&st->tonStabSt);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	151
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	152 vad_reset(&st->vadSt, use_vad2);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	153
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	154 dtx_enc_reset(&st->dtx_encSt);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	155
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	156 st->sharp = SHARPMIN;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	157 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	158
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	159 /***************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	160 * FUNCTION: cod_amr_first
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	161 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	162 * PURPOSE: Copes with look-ahead.
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	163 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	164 * INPUTS:
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	165 * No input argument are passed to this function. However, before
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	166 * calling this function, 40 new speech data should be copied to the
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	167 * vector new_speech[]. This is a global pointer which is declared in
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	168 * this file (it points to the end of speech buffer minus 200).
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	169 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	170 ***************************************************************************/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	171
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	172 int cod_amr_first(cod_amrState st, / i/o : State struct */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	173 Word16 new_speech[]) /* i : speech input (L_FRAME) */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	174 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	175 Copy(new_speech,&st->new_speech[-L_NEXT], L_NEXT);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	176 /* Copy(new_speech,st->new_speech,L_FRAME); */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	177
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	178 return 0;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	179 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	180
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	181
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	182 /***************************************************************************
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	183 * FUNCTION: cod_amr
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	184 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	185 * PURPOSE: Main encoder routine.
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	186 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	187 * DESCRIPTION: This function is called every 20 ms speech frame,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	188 * operating on the newly read 160 speech samples. It performs the
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	189 * principle encoding functions to produce the set of encoded parameters
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	190 * which include the LSP, adaptive codebook, and fixed codebook
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	191 * quantization indices (addresses and gains).
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	192 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	193 * INPUTS:
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	194 * No input argument are passed to this function. However, before
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	195 * calling this function, 160 new speech data should be copied to the
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	196 * vector new_speech[]. This is a global pointer which is declared in
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	197 * this file (it points to the end of speech buffer minus 160).
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	198 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	199 * OUTPUTS:
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	200 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	201 * ana[]: vector of analysis parameters.
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	202 * synth[]: Local synthesis speech (for debugging purposes)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	203 *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	204 ***************************************************************************/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	205 int cod_amr(
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	206 cod_amrState st, / i/o : State struct */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	207 enum Mode mode, /* i : AMR mode */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	208 Word16 new_speech[], /* i : speech input (L_FRAME) */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	209 Word16 ana[], /* o : Analysis parameters */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	210 enum Mode usedMode, / o : used mode */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	211 Word16 synth[] /* o : Local synthesis */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	212 )
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	213 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	214 /* LPC coefficients */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	215 Word16 A_t[(MP1) * 4]; /* A(z) unquantized for the 4 subframes */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	216 Word16 Aq_t[(MP1) * 4]; /* A(z) quantized for the 4 subframes */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	217 Word16 A, Aq; /* Pointer on A_t and Aq_t */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	218 Word16 lsp_new[M];
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	219
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	220 /* Other vectors */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	221 Word16 xn[L_SUBFR]; /* Target vector for pitch search */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	222 Word16 xn2[L_SUBFR]; /* Target vector for codebook search */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	223 Word16 code[L_SUBFR]; /* Fixed codebook excitation */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	224 Word16 y1[L_SUBFR]; /* Filtered adaptive excitation */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	225 Word16 y2[L_SUBFR]; /* Filtered fixed codebook excitation */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	226 Word16 gCoeff[6]; /* Correlations between xn, y1, & y2: */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	227 Word16 res[L_SUBFR]; /* Short term (LPC) prediction residual */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	228 Word16 res2[L_SUBFR]; /* Long term (LTP) prediction residual */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	229
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	230 /* Vector and scalars needed for the MR475 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	231 Word16 xn_sf0[L_SUBFR]; /* Target vector for pitch search */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	232 Word16 y2_sf0[L_SUBFR]; /* Filtered codebook innovation */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	233 Word16 code_sf0[L_SUBFR]; /* Fixed codebook excitation */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	234 Word16 h1_sf0[L_SUBFR]; /* The impulse response of sf0 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	235 Word16 mem_syn_save[M]; /* Filter memory */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	236 Word16 mem_w0_save[M]; /* Filter memory */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	237 Word16 mem_err_save[M]; /* Filter memory */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	238 Word16 sharp_save; /* Sharpening */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	239 Word16 evenSubfr; /* Even subframe indicator */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	240 Word16 T0_sf0 = 0; /* Integer pitch lag of sf0 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	241 Word16 T0_frac_sf0 = 0; /* Fractional pitch lag of sf0 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	242 Word16 i_subfr_sf0 = 0; /* Position in exc[] for sf0 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	243 Word16 gain_pit_sf0; /* Quantized pitch gain for sf0 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	244 Word16 gain_code_sf0; /* Quantized codebook gain for sf0 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	245
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	246 /* Scalars */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	247 Word16 i_subfr, subfrNr;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	248 Word16 T_op[L_FRAME/L_FRAME_BY2];
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	249 Word16 T0, T0_frac;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	250 Word16 gain_pit, gain_code;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	251
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	252 /* Flags */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	253 Word16 lsp_flag = 0; /* indicates resonance in LPC filter */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	254 Word16 gp_limit; /* pitch gain limit value */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	255 Word16 vad_flag; /* VAD decision flag */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	256 Word16 compute_sid_flag; /* SID analysis flag */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	257
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	258 Copy(new_speech, st->new_speech, L_FRAME);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	259
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	260 *usedMode = mode; move16 ();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	261
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	262 /* DTX processing */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	263 if (st->dtx)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	264 { /* no test() call since this if is only in simulation env */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	265 /* Find VAD decision */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	266
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	267 if (st->vadSt.use_vad2) {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	268 vad_flag = vad2(st->new_speech, &st->vadSt.u.v2);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	269 vad_flag = vad2(st->new_speech+80, &st->vadSt.u.v2) \|\| vad_flag;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	270 } else {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	271 vad_flag = vad1(&st->vadSt.u.v1, st->new_speech);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	272 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	273
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	274 /* NB! usedMode may change here */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	275 compute_sid_flag = tx_dtx_handler(&st->dtx_encSt,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	276 vad_flag,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	277 usedMode);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	278 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	279 else
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	280 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	281 compute_sid_flag = 0; move16 ();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	282 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	283
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	284 /------------------------------------------------------------------------
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	285 * - Perform LPC analysis: *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	286 * * autocorrelation + lag windowing *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	287 * * Levinson-durbin algorithm to find a[] *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	288 * * convert a[] to lsp[] *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	289 * * quantize and code the LSPs *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	290 * * find the interpolated LSPs and convert to a[] for all *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	291 * subframes (both quantized and unquantized) *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	292 ------------------------------------------------------------------------/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	293
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	294 /* LP analysis */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	295 lpc(&st->lpcSt, mode, st->p_window, st->p_window_12k2, A_t);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	296
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	297 /* From A(z) to lsp. LSP quantization and interpolation */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	298 lsp(&st->lspSt, mode, *usedMode, A_t, Aq_t, lsp_new, &ana);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	299
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	300 /* Buffer lsp's and energy */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	301 dtx_buffer(&st->dtx_encSt,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	302 lsp_new,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	303 st->new_speech);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	304
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	305 /* Check if in DTX mode */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	306 test();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	307 if (sub(*usedMode, MRDTX) == 0)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	308 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	309 dtx_enc(&st->dtx_encSt,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	310 compute_sid_flag,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	311 &st->lspSt.qSt,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	312 &st->gainQuantSt.gc_predSt,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	313 &ana);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	314
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	315 Set_zero(st->old_exc, PIT_MAX + L_INTERPOL);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	316 Set_zero(st->mem_w0, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	317 Set_zero(st->mem_err, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	318 Set_zero(st->zero, L_SUBFR);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	319 Set_zero(st->hvec, L_SUBFR); /* set to zero "h1[-L_SUBFR..-1]" */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	320 /* Reset lsp states */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	321 lsp_reset(&st->lspSt);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	322 Copy(lsp_new, st->lspSt.lsp_old, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	323 Copy(lsp_new, st->lspSt.lsp_old_q, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	324
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	325 /* Reset clLtp states */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	326 cl_ltp_reset(&st->clLtpSt);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	327 st->sharp = SHARPMIN;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	328 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	329 else
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	330 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	331 /* check resonance in the filter */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	332 lsp_flag = check_lsp(&st->tonStabSt, st->lspSt.lsp_old);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	333 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	334
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	335 /----------------------------------------------------------------------
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	336 * - Find the weighted input speech w_sp[] for the whole speech frame *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	337 * - Find the open-loop pitch delay for first 2 subframes *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	338 * - Set the range for searching closed-loop pitch in 1st subframe *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	339 * - Find the open-loop pitch delay for last 2 subframes *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	340 ----------------------------------------------------------------------/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	341
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	342 if (st->dtx && st->vadSt.use_vad2)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	343 { /* no test() call since this if is only in simulation env */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	344 st->vadSt.u.v2.L_Rmax = 0;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	345 st->vadSt.u.v2.L_R0 = 0;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	346 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	347 for(subfrNr = 0, i_subfr = 0;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	348 subfrNr < L_FRAME/L_FRAME_BY2;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	349 subfrNr++, i_subfr += L_FRAME_BY2)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	350 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	351 /* Pre-processing on 80 samples */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	352 pre_big(mode, gamma1, gamma1_12k2, gamma2, A_t, i_subfr, st->speech,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	353 st->mem_w, st->wsp);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	354
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	355 test (); test ();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	356 if ((sub(mode, MR475) != 0) && (sub(mode, MR515) != 0))
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	357 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	358 /* Find open loop pitch lag for two subframes */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	359 ol_ltp(&st->pitchOLWghtSt, &st->vadSt, mode, &st->wsp[i_subfr],
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	360 &T_op[subfrNr], st->old_lags, st->ol_gain_flg, subfrNr,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	361 st->dtx);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	362 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	363 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	364
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	365 if ((sub(mode, MR475) == 0) \|\| (sub(mode, MR515) == 0))
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	366 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	367 /* Find open loop pitch lag for ONE FRAME ONLY */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	368 /* search on 160 samples */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	369
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	370 ol_ltp(&st->pitchOLWghtSt, &st->vadSt, mode, &st->wsp[0], &T_op[0],
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	371 st->old_lags, st->ol_gain_flg, 1, st->dtx);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	372 T_op[1] = T_op[0];
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	373 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	374
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	375 if (st->dtx && st->vadSt.use_vad2)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	376 { /* no test() call since this if is only in simulation env */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	377 LTP_flag_update(&st->vadSt.u.v2, mode);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	378 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	379
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	380 /* run VAD pitch detection */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	381 if (st->dtx && !st->vadSt.use_vad2)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	382 { /* no test() call since this if is only in simulation env */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	383 vad_pitch_detection(&st->vadSt.u.v1, T_op);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	384 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	385
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	386 if (sub(*usedMode, MRDTX) == 0)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	387 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	388 goto the_end;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	389 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	390
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	391 /------------------------------------------------------------------------
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	392 * Loop for every subframe in the analysis frame *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	393 ------------------------------------------------------------------------
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	394 * To find the pitch and innovation parameters. The subframe size is *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	395 * L_SUBFR and the loop is repeated L_FRAME/L_SUBFR times. *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	396 * - find the weighted LPC coefficients *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	397 * - find the LPC residual signal res[] *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	398 * - compute the target signal for pitch search *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	399 * - compute impulse response of weighted synthesis filter (h1[]) *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	400 * - find the closed-loop pitch parameters *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	401 * - encode the pitch dealy *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	402 * - update the impulse response h1[] by including fixed-gain pitch *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	403 * - find target vector for codebook search *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	404 * - codebook search *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	405 * - encode codebook address *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	406 * - VQ of pitch and codebook gains *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	407 * - find synthesis speech *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	408 * - update states of weighting filter *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	409 ------------------------------------------------------------------------/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	410
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	411 A = A_t; /* pointer to interpolated LPC parameters */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	412 Aq = Aq_t; /* pointer to interpolated quantized LPC parameters */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	413
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	414 evenSubfr = 0; move16 ();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	415 subfrNr = -1; move16 ();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	416 for (i_subfr = 0; i_subfr < L_FRAME; i_subfr += L_SUBFR)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	417 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	418 subfrNr = add(subfrNr, 1);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	419 evenSubfr = sub(1, evenSubfr);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	420
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	421 /* Save states for the MR475 mode */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	422 test(); test();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	423 if ((evenSubfr != 0) && (sub(*usedMode, MR475) == 0))
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	424 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	425 Copy(st->mem_syn, mem_syn_save, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	426 Copy(st->mem_w0, mem_w0_save, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	427 Copy(st->mem_err, mem_err_save, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	428 sharp_save = st->sharp;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	429 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	430
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	431 /-----------------------------------------------------------------
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	432 * - Preprocessing of subframe *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	433 -----------------------------------------------------------------/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	434 if (sub(*usedMode, MR475) != 0)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	435 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	436 subframePreProc(*usedMode, gamma1, gamma1_12k2,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	437 gamma2, A, Aq, &st->speech[i_subfr],
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	438 st->mem_err, st->mem_w0, st->zero,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	439 st->ai_zero, &st->exc[i_subfr],
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	440 st->h1, xn, res, st->error);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	441 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	442 else
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	443 { /* MR475 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	444 subframePreProc(*usedMode, gamma1, gamma1_12k2,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	445 gamma2, A, Aq, &st->speech[i_subfr],
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	446 st->mem_err, mem_w0_save, st->zero,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	447 st->ai_zero, &st->exc[i_subfr],
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	448 st->h1, xn, res, st->error);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	449
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	450 /* save impulse response (modified in cbsearch) */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	451 if (evenSubfr != 0)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	452 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	453 Copy (st->h1, h1_sf0, L_SUBFR);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	454 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	455 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	456
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	457 /* copy the LP residual (res2 is modified in the CL LTP search) */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	458 Copy (res, res2, L_SUBFR);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	459
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	460 /-----------------------------------------------------------------
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	461 * - Closed-loop LTP search *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	462 -----------------------------------------------------------------/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	463 cl_ltp(&st->clLtpSt, &st->tonStabSt, *usedMode, i_subfr, T_op, st->h1,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	464 &st->exc[i_subfr], res2, xn, lsp_flag, xn2, y1,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	465 &T0, &T0_frac, &gain_pit, gCoeff, &ana,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	466 &gp_limit);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	467
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	468 /* update LTP lag history */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	469 if ((subfrNr == 0) && (st->ol_gain_flg[0] > 0))
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	470 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	471 st->old_lags[1] = T0;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	472 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	473
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	474 if ((sub(subfrNr, 3) == 0) && (st->ol_gain_flg[1] > 0))
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	475 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	476 st->old_lags[0] = T0;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	477 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	478
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	479 /-----------------------------------------------------------------
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	480 * - Inovative codebook search (find index and gain) *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	481 -----------------------------------------------------------------/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	482 cbsearch(xn2, st->h1, T0, st->sharp, gain_pit, res2,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	483 code, y2, &ana, *usedMode, subfrNr);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	484
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	485 /------------------------------------------------------
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	486 * - Quantization of gains. *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	487 ------------------------------------------------------/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	488 gainQuant(&st->gainQuantSt, *usedMode, res, &st->exc[i_subfr], code,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	489 xn, xn2, y1, y2, gCoeff, evenSubfr, gp_limit,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	490 &gain_pit_sf0, &gain_code_sf0,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	491 &gain_pit, &gain_code, &ana);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	492
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	493 /* update gain history */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	494 update_gp_clipping(&st->tonStabSt, gain_pit);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	495
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	496 if (sub(*usedMode, MR475) != 0)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	497 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	498 /* Subframe Post Porcessing */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	499 subframePostProc(st->speech, *usedMode, i_subfr, gain_pit,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	500 gain_code, Aq, synth, xn, code, y1, y2, st->mem_syn,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	501 st->mem_err, st->mem_w0, st->exc, &st->sharp);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	502 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	503 else
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	504 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	505 if (evenSubfr != 0)
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	506 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	507 i_subfr_sf0 = i_subfr; move16 ();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	508 Copy(xn, xn_sf0, L_SUBFR);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	509 Copy(y2, y2_sf0, L_SUBFR);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	510 Copy(code, code_sf0, L_SUBFR);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	511 T0_sf0 = T0; move16 ();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	512 T0_frac_sf0 = T0_frac; move16 ();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	513
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	514 /* Subframe Post Porcessing */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	515 subframePostProc(st->speech, *usedMode, i_subfr, gain_pit,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	516 gain_code, Aq, synth, xn, code, y1, y2,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	517 mem_syn_save, st->mem_err, mem_w0_save,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	518 st->exc, &st->sharp);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	519 st->sharp = sharp_save; move16();
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	520 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	521 else
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	522 {
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	523 /* update both subframes for the MR475 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	524
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	525 /* Restore states for the MR475 mode */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	526 Copy(mem_err_save, st->mem_err, M);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	527
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	528 /* re-build excitation for sf 0 */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	529 Pred_lt_3or6(&st->exc[i_subfr_sf0], T0_sf0, T0_frac_sf0,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	530 L_SUBFR, 1);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	531 Convolve(&st->exc[i_subfr_sf0], h1_sf0, y1, L_SUBFR);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	532
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	533 Aq -= MP1;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	534 subframePostProc(st->speech, *usedMode, i_subfr_sf0,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	535 gain_pit_sf0, gain_code_sf0, Aq,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	536 synth, xn_sf0, code_sf0, y1, y2_sf0,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	537 st->mem_syn, st->mem_err, st->mem_w0, st->exc,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	538 &sharp_save); /* overwrites sharp_save */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	539 Aq += MP1;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	540
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	541 /* re-run pre-processing to get xn right (needed by postproc) */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	542 /* (this also reconstructs the unsharpened h1 for sf 1) */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	543 subframePreProc(*usedMode, gamma1, gamma1_12k2,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	544 gamma2, A, Aq, &st->speech[i_subfr],
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	545 st->mem_err, st->mem_w0, st->zero,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	546 st->ai_zero, &st->exc[i_subfr],
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	547 st->h1, xn, res, st->error);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	548
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	549 /* re-build excitation sf 1 (changed if lag < L_SUBFR) */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	550 Pred_lt_3or6(&st->exc[i_subfr], T0, T0_frac, L_SUBFR, 1);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	551 Convolve(&st->exc[i_subfr], st->h1, y1, L_SUBFR);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	552
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	553 subframePostProc(st->speech, *usedMode, i_subfr, gain_pit,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	554 gain_code, Aq, synth, xn, code, y1, y2,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	555 st->mem_syn, st->mem_err, st->mem_w0,
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	556 st->exc, &st->sharp);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	557 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	558 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	559
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	560 A += MP1; /* interpolated LPC parameters for next subframe */
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	561 Aq += MP1;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	562 }
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	563
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	564 Copy(&st->old_exc[L_FRAME], &st->old_exc[0], PIT_MAX + L_INTERPOL);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	565
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	566 the_end:
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	567
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	568 /--------------------------------------------------
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	569 * Update signal for next frame. *
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	570 --------------------------------------------------/
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	571 Copy(&st->old_wsp[L_FRAME], &st->old_wsp[0], PIT_MAX);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	572
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	573 Copy(&st->old_speech[L_FRAME], &st->old_speech[0], L_TOTAL - L_FRAME);
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	574
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	575 return 0;
93d6c6960a46 libtwamr: integrate cod_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	576 }

FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/cod_amr.c @ 458:e26b974f7ba3