gsm-codec-lib: libtwamr/dec

annotate libtwamr/dec_amr.c @ 513:03a40ac2e931

libgsmhr1: implement validation for *.cod frames

author	Mychaela Falconia <falcon@freecalypso.org>
date	Sun, 25 Aug 2024 19:00:03 +0000
parents	7bef001cd8b8
children

rev	line source
426 7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	1 /*************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	2 *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	3 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	4 * R99 Version 3.3.0
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	5 * REL-4 Version 4.1.0
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	6 *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	7 *****************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	8 *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	9 * File : dec_amr.c
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	10 * Purpose : Decoding of one speech frame using given codec mode
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	11 *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	12 *****************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	13 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	14
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	15 /*
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	16 *****************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	17 * MODULE INCLUDE FILE AND VERSION ID
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	18 *****************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	19 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	20 #include "namespace.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	21 #include "dec_amr.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	22
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	23 #include "typedef.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	24 #include "basic_op.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	25 #include "no_count.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	26 #include "cnst.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	27 #include "memops.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	28 #include "syn_filt.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	29 #include "d_plsf.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	30 #include "agc.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	31 #include "int_lpc.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	32 #include "dec_gain.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	33 #include "dec_lag3.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	34 #include "dec_lag6.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	35 #include "d2_9pf.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	36 #include "d2_11pf.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	37 #include "d3_14pf.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	38 #include "d4_17pf.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	39 #include "d8_31pf.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	40 #include "d1035pf.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	41 #include "pred_lt.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	42 #include "d_gain_p.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	43 #include "d_gain_c.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	44 #include "dec_gain.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	45 #include "ec_gains.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	46 #include "ph_disp.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	47 #include "c_g_aver.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	48 #include "int_lsf.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	49 #include "lsp_lsf.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	50 #include "lsp_avg.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	51 #include "bgnscd.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	52 #include "ex_ctrl.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	53 #include "sqrt_l.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	54
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	55 #include "lsp_tab.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	56 #include "bitno.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	57 #include "b_cn_cod.h"
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	58
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	59 /*
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	60 *****************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	61 * LOCAL VARIABLES AND TABLES
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	62 *****************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	63 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	64 /-----------------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	65 * Decoder constant parameters (defined in "cnst.h") *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	66 -----------------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	67 * L_FRAME : Frame size. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	68 * L_FRAME_BY2 : Half the frame size. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	69 * L_SUBFR : Sub-frame size. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	70 * M : LPC order. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	71 * MP1 : LPC order+1 *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	72 * PIT_MIN : Minimum pitch lag. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	73 * PIT_MIN_MR122 : Minimum pitch lag for the MR122 mode. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	74 * PIT_MAX : Maximum pitch lag. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	75 * L_INTERPOL : Length of filter for interpolation *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	76 * PRM_SIZE : size of vector containing analysis parameters *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	77 -----------------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	78
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	79 /*
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	80 *****************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	81 * PUBLIC PROGRAM CODE
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	82 *****************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	83 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	84
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	85 /*
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	86 **************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	87 *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	88 * Function : Decoder_amr_reset
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	89 * Purpose : Resets state memory
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	90 *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	91 **************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	92 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	93 void Decoder_amr_reset (Decoder_amrState *state, Flag dtx_partial_reset)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	94 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	95 Word16 i;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	96
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	97 /* Initialize static pointer */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	98 state->exc = state->old_exc + PIT_MAX + L_INTERPOL;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	99
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	100 /* Static vectors to zero */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	101 Set_zero (state->old_exc, PIT_MAX + L_INTERPOL);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	102
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	103 if (!dtx_partial_reset)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	104 Set_zero (state->mem_syn, M);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	105
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	106 /* initialize pitch sharpening */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	107 state->sharp = SHARPMIN;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	108 state->old_T0 = 40;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	109
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	110 /* Initialize state->lsp_old [] */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	111
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	112 if (!dtx_partial_reset) {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	113 Copy(lsp_init_data, &state->lsp_old[0], M);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	114 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	115
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	116 /* Initialize memories of bad frame handling */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	117 state->prev_bf = 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	118 state->prev_pdf = 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	119 state->state = 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	120
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	121 state->T0_lagBuff = 40;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	122 state->inBackgroundNoise = 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	123 state->voicedHangover = 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	124 if (!dtx_partial_reset) {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	125 for (i=0;i<9;i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	126 state->excEnergyHist[i] = 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	127 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	128
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	129 for (i = 0; i < 9; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	130 state->ltpGainHistory[i] = 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	131
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	132 Cb_gain_average_reset(&state->Cb_gain_averState);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	133 if (!dtx_partial_reset)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	134 lsp_avg_reset(&state->lsp_avg_st);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	135 D_plsf_reset(&state->lsfState);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	136 ec_gain_pitch_reset(&state->ec_gain_p_st);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	137 ec_gain_code_reset(&state->ec_gain_c_st);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	138
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	139 if (!dtx_partial_reset)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	140 gc_pred_reset(&state->pred_state);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	141
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	142 Bgn_scd_reset(&state->background_state);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	143 state->nodataSeed = 21845;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	144 ph_disp_reset(&state->ph_disp_st);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	145 if (!dtx_partial_reset)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	146 dtx_dec_reset(&state->dtxDecoderState);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	147 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	148
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	149 /*
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	150 **************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	151 *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	152 * Function : Decoder_amr
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	153 * Purpose : Speech decoder routine.
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	154 *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	155 **************************************************************************
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	156 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	157 int Decoder_amr (
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	158 Decoder_amrState st, / i/o : State variables */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	159 enum Mode mode, /* i : AMR mode */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	160 Word16 parm[], /* i : vector of synthesis parameters
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	161 (PRM_SIZE) */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	162 enum RXFrameType frame_type, /* i : received frame type */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	163 Word16 synth[], /* o : synthesis speech (L_FRAME) */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	164 Word16 A_t[] /* o : decoded LP filter in 4 subframes
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	165 (AZ_SIZE) */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	166 )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	167 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	168 /* LPC coefficients */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	169
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	170 Word16 Az; / Pointer on A_t */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	171
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	172 /* LSPs */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	173
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	174 Word16 lsp_new[M];
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	175 Word16 lsp_mid[M];
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	176
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	177 /* LSFs */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	178
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	179 Word16 prev_lsf[M];
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	180 Word16 lsf_i[M];
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	181
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	182 /* Algebraic codevector */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	183
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	184 Word16 code[L_SUBFR];
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	185
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	186 /* excitation */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	187
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	188 Word16 excp[L_SUBFR];
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	189 Word16 exc_enhanced[L_SUBFR];
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	190
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	191 /* Scalars */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	192
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	193 Word16 i, i_subfr;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	194 Word16 T0, T0_frac, index, index_mr475 = 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	195 Word16 gain_pit, gain_code, gain_code_mix, pit_sharp, pit_flag, pitch_fac;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	196 Word16 t0_min, t0_max;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	197 Word16 delta_frc_low, delta_frc_range;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	198 Word16 tmp_shift;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	199 Word16 temp;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	200 Word32 L_temp;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	201 Word16 flag4;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	202 Word16 carefulFlag;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	203 Word16 excEnergy;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	204 Word16 subfrNr;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	205 Word16 evenSubfr = 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	206
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	207 Word16 bfi = 0; /* bad frame indication flag */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	208 Word16 pdfi = 0; /* potential degraded bad frame flag */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	209
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	210 enum DTXStateType newDTXState; /* SPEECH , DTX, DTX_MUTE */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	211
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	212 /* find the new DTX state SPEECH OR DTX */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	213 newDTXState = rx_dtx_handler(&st->dtxDecoderState, frame_type);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	214
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	215 /* DTX actions */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	216 if (sub(newDTXState, SPEECH) != 0 )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	217 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	218 Decoder_amr_reset (st, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	219
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	220 dtx_dec(&st->dtxDecoderState,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	221 st->mem_syn,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	222 &st->lsfState,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	223 &st->pred_state,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	224 &st->Cb_gain_averState,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	225 newDTXState,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	226 mode,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	227 parm, synth, A_t);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	228 /* update average lsp */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	229
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	230 Lsf_lsp(st->lsfState.past_lsf_q, st->lsp_old, M);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	231 lsp_avg(&st->lsp_avg_st, st->lsfState.past_lsf_q);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	232 goto the_end;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	233 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	234
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	235 /* SPEECH action state machine */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	236 if ((sub(frame_type, RX_SPEECH_BAD) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	237 (sub(frame_type, RX_NO_DATA) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	238 (sub(frame_type, RX_ONSET) == 0))
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	239 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	240 bfi = 1;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	241 if ((sub(frame_type, RX_NO_DATA) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	242 (sub(frame_type, RX_ONSET) == 0))
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	243 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	244 build_CN_param(&st->nodataSeed,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	245 prmno[mode],
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	246 bitno[mode],
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	247 parm);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	248 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	249 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	250 else if (sub(frame_type, RX_SPEECH_DEGRADED) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	251 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	252 pdfi = 1;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	253 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	254
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	255 if (bfi != 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	256 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	257 st->state = add (st->state, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	258 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	259 else if (sub (st->state, 6) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	260 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	261 st->state = 5; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	262 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	263 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	264 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	265 st->state = 0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	266 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	267
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	268 if (sub (st->state, 6) > 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	269 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	270 st->state = 6; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	271 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	272
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	273 /* If this frame is the first speech frame after CNI period, */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	274 /* set the BFH state machine to an appropriate state depending */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	275 /* on whether there was DTX muting before start of speech or not */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	276 /* If there was DTX muting, the first speech frame is muted. */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	277 /* If there was no DTX muting, the first speech frame is not */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	278 /* muted. The BFH state machine starts from state 5, however, to */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	279 /* keep the audible noise resulting from a SID frame which is */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	280 /* erroneously interpreted as a good speech frame as small as */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	281 /* possible (the decoder output in this case is quickly muted) */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	282
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	283 if (sub(st->dtxDecoderState.dtxGlobalState, DTX) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	284 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	285 st->state = 5;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	286 st->prev_bf = 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	287 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	288 else if (test (), sub(st->dtxDecoderState.dtxGlobalState, DTX_MUTE) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	289 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	290 st->state = 5;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	291 st->prev_bf = 1;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	292 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	293
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	294 /* save old LSFs for CB gain smoothing */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	295 Copy (st->lsfState.past_lsf_q, prev_lsf, M);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	296
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	297 /* decode LSF parameters and generate interpolated lpc coefficients
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	298 for the 4 subframes */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	299 if (sub (mode, MR122) != 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	300 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	301 D_plsf_3(&st->lsfState, mode, bfi, parm, lsp_new);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	302
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	303 /* Advance synthesis parameters pointer */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	304 parm += 3; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	305
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	306 Int_lpc_1to3(st->lsp_old, lsp_new, A_t);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	307 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	308 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	309 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	310 D_plsf_5(&st->lsfState, bfi, parm, lsp_mid, lsp_new);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	311
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	312 /* Advance synthesis parameters pointer */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	313 parm += 5; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	314
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	315 Int_lpc_1and3(st->lsp_old, lsp_mid, lsp_new, A_t);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	316 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	317
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	318 /* update the LSPs for the next frame */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	319 for (i = 0; i < M; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	320 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	321 st->lsp_old[i] = lsp_new[i]; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	322 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	323
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	324 /------------------------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	325 * Loop for every subframe in the analysis frame *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	326 ------------------------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	327 * The subframe size is L_SUBFR and the loop is repeated L_FRAME/L_SUBFR *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	328 * times *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	329 * - decode the pitch delay *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	330 * - decode algebraic code *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	331 * - decode pitch and codebook gains *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	332 * - find the excitation and compute synthesis speech *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	333 ------------------------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	334
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	335 /* pointer to interpolated LPC parameters */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	336 Az = A_t; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	337
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	338 evenSubfr = 0; move16();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	339 subfrNr = -1; move16();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	340 for (i_subfr = 0; i_subfr < L_FRAME; i_subfr += L_SUBFR)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	341 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	342 subfrNr = add(subfrNr, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	343 evenSubfr = sub(1, evenSubfr);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	344
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	345 /* flag for first and 3th subframe */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	346 pit_flag = i_subfr; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	347
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	348 test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	349 if (sub (i_subfr, L_FRAME_BY2) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	350 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	351 test(); test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	352 if (sub(mode, MR475) != 0 && sub(mode, MR515) != 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	353 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	354 pit_flag = 0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	355 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	356 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	357
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	358 /* pitch index */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	359 index = *parm++; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	360
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	361 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	362 * - decode pitch lag and find adaptive codebook vector. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	363 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	364
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	365 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	366 if (sub(mode, MR122) != 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	367 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	368 /* flag4 indicates encoding with 4 bit resolution; */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	369 /* this is needed for mode MR475, MR515, MR59 and MR67 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	370
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	371 flag4 = 0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	372 test (); test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	373 if ((sub (mode, MR475) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	374 (sub (mode, MR515) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	375 (sub (mode, MR59) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	376 (sub (mode, MR67) == 0) ) {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	377 flag4 = 1; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	378 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	379
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	380 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	381 * - get ranges for the t0_min and t0_max *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	382 * - only needed in delta decoding *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	383 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	384
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	385 delta_frc_low = 5; move16();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	386 delta_frc_range = 9; move16();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	387
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	388 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	389 if ( sub(mode, MR795) == 0 )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	390 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	391 delta_frc_low = 10; move16();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	392 delta_frc_range = 19; move16();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	393 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	394
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	395 t0_min = sub(st->old_T0, delta_frc_low);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	396 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	397 if (sub(t0_min, PIT_MIN) < 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	398 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	399 t0_min = PIT_MIN; move16();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	400 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	401 t0_max = add(t0_min, delta_frc_range);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	402 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	403 if (sub(t0_max, PIT_MAX) > 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	404 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	405 t0_max = PIT_MAX; move16();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	406 t0_min = sub(t0_max, delta_frc_range);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	407 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	408
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	409 Dec_lag3 (index, t0_min, t0_max, pit_flag, st->old_T0,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	410 &T0, &T0_frac, flag4);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	411
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	412 st->T0_lagBuff = T0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	413
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	414 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	415 if (bfi != 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	416 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	417 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	418 if (sub (st->old_T0, PIT_MAX) < 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	419 { /* Graceful pitch */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	420 st->old_T0 = add(st->old_T0, 1); /* degradation */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	421 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	422 T0 = st->old_T0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	423 T0_frac = 0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	424
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	425 test (); test (); test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	426 if ( st->inBackgroundNoise != 0 &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	427 sub(st->voicedHangover, 4) > 0 &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	428 ((sub(mode, MR475) == 0 ) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	429 (sub(mode, MR515) == 0 ) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	430 (sub(mode, MR59) == 0) )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	431 )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	432 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	433 T0 = st->T0_lagBuff; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	434 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	435 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	436
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	437 Pred_lt_3or6 (st->exc, T0, T0_frac, L_SUBFR, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	438 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	439 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	440 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	441 Dec_lag6 (index, PIT_MIN_MR122,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	442 PIT_MAX, pit_flag, &T0, &T0_frac);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	443
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	444 test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	445 if ( bfi == 0 && (pit_flag == 0 \|\| sub (index, 61) < 0))
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	446 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	447 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	448 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	449 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	450 st->T0_lagBuff = T0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	451 T0 = st->old_T0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	452 T0_frac = 0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	453 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	454
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	455 Pred_lt_3or6 (st->exc, T0, T0_frac, L_SUBFR, 0);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	456 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	457
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	458 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	459 * - (MR122 only: Decode pitch gain.) *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	460 * - Decode innovative codebook. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	461 * - set pitch sharpening factor *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	462 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	463
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	464 if (sub (mode, MR475) == 0 \|\| sub (mode, MR515) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	465 { /* MR475, MR515 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	466 index = parm++; / index of position */ move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	467 i = parm++; / signs */ move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	468
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	469 decode_2i40_9bits (subfrNr, i, index, code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	470
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	471 pit_sharp = shl (st->sharp, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	472 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	473 else if (sub (mode, MR59) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	474 { /* MR59 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	475 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	476 index = parm++; / index of position */ move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	477 i = parm++; / signs */ move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	478
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	479 decode_2i40_11bits (i, index, code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	480
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	481 pit_sharp = shl (st->sharp, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	482 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	483 else if (sub (mode, MR67) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	484 { /* MR67 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	485 test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	486 index = parm++; / index of position */ move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	487 i = parm++; / signs */ move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	488
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	489 decode_3i40_14bits (i, index, code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	490
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	491 pit_sharp = shl (st->sharp, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	492 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	493 else if (sub (mode, MR795) <= 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	494 { /* MR74, MR795 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	495 test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	496 index = parm++; / index of position */ move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	497 i = parm++; / signs */ move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	498
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	499 decode_4i40_17bits (i, index, code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	500
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	501 pit_sharp = shl (st->sharp, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	502 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	503 else if (sub (mode, MR102) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	504 { /* MR102 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	505 test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	506
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	507 dec_8i40_31bits (parm, code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	508 parm += 7; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	509
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	510 pit_sharp = shl (st->sharp, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	511 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	512 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	513 { /* MR122 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	514 test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	515 index = *parm++; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	516 test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	517 if (bfi != 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	518 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	519 ec_gain_pitch (&st->ec_gain_p_st, st->state, &gain_pit);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	520 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	521 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	522 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	523 gain_pit = d_gain_pitch (mode, index); move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	524 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	525 ec_gain_pitch_update (&st->ec_gain_p_st, bfi, st->prev_bf,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	526 &gain_pit);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	527
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	528 dec_10i40_35bits (parm, code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	529 parm += 10; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	530
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	531 /* pit_sharp = gain_pit; */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	532 /* if (pit_sharp > 1.0) pit_sharp = 1.0; */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	533
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	534 pit_sharp = shl (gain_pit, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	535 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	536
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	537 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	538 * - Add the pitch contribution to code[]. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	539 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	540 for (i = T0; i < L_SUBFR; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	541 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	542 temp = mult (code[i - T0], pit_sharp);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	543 code[i] = add (code[i], temp);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	544 move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	545 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	546
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	547 /------------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	548 * - Decode codebook gain (MR122) or both pitch *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	549 * gain and codebook gain (all others) *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	550 * - Update pitch sharpening "sharp" with quantized gain_pit *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	551 ------------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	552
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	553 if (test(), sub (mode, MR475) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	554 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	555 /* read and decode pitch and code gain */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	556 test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	557 if (evenSubfr != 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	558 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	559 index_mr475 = parm++; move16 (); / index of gain(s) */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	560 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	561
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	562 test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	563 if (bfi == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	564 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	565 Dec_gain(&st->pred_state, mode, index_mr475, code,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	566 evenSubfr, &gain_pit, &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	567 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	568 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	569 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	570 ec_gain_pitch (&st->ec_gain_p_st, st->state, &gain_pit);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	571 ec_gain_code (&st->ec_gain_c_st, &st->pred_state, st->state,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	572 &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	573 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	574 ec_gain_pitch_update (&st->ec_gain_p_st, bfi, st->prev_bf,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	575 &gain_pit);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	576 ec_gain_code_update (&st->ec_gain_c_st, bfi, st->prev_bf,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	577 &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	578
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	579 pit_sharp = gain_pit; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	580 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	581 if (sub (pit_sharp, SHARPMAX) > 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	582 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	583 pit_sharp = SHARPMAX; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	584 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	585
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	586 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	587 else if (test(), test(), (sub (mode, MR74) <= 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	588 (sub (mode, MR102) == 0))
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	589 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	590 /* read and decode pitch and code gain */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	591 index = parm++; move16 (); / index of gain(s) */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	592
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	593 test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	594 if (bfi == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	595 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	596 Dec_gain(&st->pred_state, mode, index, code,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	597 evenSubfr, &gain_pit, &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	598 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	599 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	600 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	601 ec_gain_pitch (&st->ec_gain_p_st, st->state, &gain_pit);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	602 ec_gain_code (&st->ec_gain_c_st, &st->pred_state, st->state,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	603 &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	604 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	605 ec_gain_pitch_update (&st->ec_gain_p_st, bfi, st->prev_bf,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	606 &gain_pit);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	607 ec_gain_code_update (&st->ec_gain_c_st, bfi, st->prev_bf,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	608 &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	609
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	610 pit_sharp = gain_pit; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	611 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	612 if (sub (pit_sharp, SHARPMAX) > 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	613 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	614 pit_sharp = SHARPMAX; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	615 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	616
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	617 if (sub (mode, MR102) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	618 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	619 if (sub (st->old_T0, add(L_SUBFR, 5)) > 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	620 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	621 pit_sharp = shr(pit_sharp, 2);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	622 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	623 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	624 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	625 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	626 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	627 /* read and decode pitch gain */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	628 index = parm++; move16 (); / index of gain(s) */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	629
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	630 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	631 if (sub (mode, MR795) == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	632 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	633 /* decode pitch gain */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	634 test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	635 if (bfi != 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	636 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	637 ec_gain_pitch (&st->ec_gain_p_st, st->state, &gain_pit);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	638 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	639 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	640 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	641 gain_pit = d_gain_pitch (mode, index); move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	642 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	643 ec_gain_pitch_update (&st->ec_gain_p_st, bfi, st->prev_bf,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	644 &gain_pit);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	645
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	646 /* read and decode code gain */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	647 index = *parm++; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	648 test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	649 if (bfi == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	650 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	651 d_gain_code (&st->pred_state, mode, index, code, &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	652 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	653 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	654 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	655 ec_gain_code (&st->ec_gain_c_st, &st->pred_state, st->state,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	656 &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	657 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	658 ec_gain_code_update (&st->ec_gain_c_st, bfi, st->prev_bf,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	659 &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	660
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	661 pit_sharp = gain_pit; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	662 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	663 if (sub (pit_sharp, SHARPMAX) > 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	664 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	665 pit_sharp = SHARPMAX; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	666 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	667 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	668 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	669 { /* MR122 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	670 test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	671 if (bfi == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	672 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	673 d_gain_code (&st->pred_state, mode, index, code, &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	674 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	675 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	676 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	677 ec_gain_code (&st->ec_gain_c_st, &st->pred_state, st->state,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	678 &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	679 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	680 ec_gain_code_update (&st->ec_gain_c_st, bfi, st->prev_bf,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	681 &gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	682
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	683 pit_sharp = gain_pit; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	684 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	685 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	686
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	687 /* store pitch sharpening for next subframe */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	688 /* (for modes which use the previous pitch gain for
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	689 pitch sharpening in the search phase) */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	690 /* do not update sharpening in even subframes for MR475 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	691 test(); test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	692 if (sub(mode, MR475) != 0 \|\| evenSubfr == 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	693 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	694 st->sharp = gain_pit; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	695 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	696 if (sub (st->sharp, SHARPMAX) > 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	697 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	698 st->sharp = SHARPMAX; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	699 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	700 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	701
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	702 pit_sharp = shl (pit_sharp, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	703 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	704 if (sub (pit_sharp, 16384) > 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	705 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	706 for (i = 0; i < L_SUBFR; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	707 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	708 temp = mult (st->exc[i], pit_sharp);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	709 L_temp = L_mult (temp, gain_pit);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	710 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	711 if (sub(mode, MR122)==0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	712 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	713 L_temp = L_shr (L_temp, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	714 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	715 excp[i] = round (L_temp); move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	716 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	717 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	718
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	719 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	720 * - Store list of LTP gains needed in the source *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	721 * characteristic detector (SCD) *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	722 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	723 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	724 if ( bfi == 0 )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	725 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	726 for (i = 0; i < 8; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	727 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	728 st->ltpGainHistory[i] = st->ltpGainHistory[i+1]; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	729 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	730 st->ltpGainHistory[8] = gain_pit; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	731 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	732
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	733 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	734 * - Limit gain_pit if in background noise and BFI *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	735 * for MR475, MR515, MR59 *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	736 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	737
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	738 test (); test (); test (); test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	739 if ( (st->prev_bf != 0 \|\| bfi != 0) && st->inBackgroundNoise != 0 &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	740 ((sub(mode, MR475) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	741 (sub(mode, MR515) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	742 (sub(mode, MR59) == 0))
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	743 )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	744 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	745 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	746 if ( sub (gain_pit, 12288) > 0) /* if (gain_pit > 0.75) in Q14*/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	747 gain_pit = add( shr( sub(gain_pit, 12288), 1 ), 12288 );
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	748 /* gain_pit = (gain_pit-0.75)/2.0 + 0.75; */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	749
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	750 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	751 if ( sub (gain_pit, 14745) > 0) /* if (gain_pit > 0.90) in Q14*/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	752 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	753 gain_pit = 14745; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	754 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	755 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	756
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	757 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	758 * Calculate CB mixed gain *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	759 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	760 Int_lsf(prev_lsf, st->lsfState.past_lsf_q, i_subfr, lsf_i);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	761 gain_code_mix = Cb_gain_average(
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	762 &st->Cb_gain_averState, mode, gain_code,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	763 lsf_i, st->lsp_avg_st.lsp_meanSave, bfi,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	764 st->prev_bf, pdfi, st->prev_pdf,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	765 st->inBackgroundNoise, st->voicedHangover); move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	766
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	767 /* make sure that MR74, MR795, MR122 have original code_gain*/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	768 test();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	769 if ((sub(mode, MR67) > 0) && (sub(mode, MR102) != 0) )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	770 /* MR74, MR795, MR122 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	771 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	772 gain_code_mix = gain_code; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	773 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	774
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	775 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	776 * - Find the total excitation. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	777 * - Find synthesis speech corresponding to st->exc[]. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	778 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	779 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	780 if (sub(mode, MR102) <= 0) /* MR475, MR515, MR59, MR67, MR74, MR795, MR102*/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	781 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	782 pitch_fac = gain_pit; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	783 tmp_shift = 1; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	784 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	785 else /* MR122 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	786 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	787 pitch_fac = shr (gain_pit, 1); move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	788 tmp_shift = 2; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	789 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	790
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	791 /* copy unscaled LTP excitation to exc_enhanced (used in phase
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	792 * dispersion below) and compute total excitation for LTP feedback
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	793 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	794 for (i = 0; i < L_SUBFR; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	795 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	796 exc_enhanced[i] = st->exc[i]; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	797
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	798 /* st->exc[i] = gain_pitst->exc[i] + gain_codecode[i]; */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	799 L_temp = L_mult (st->exc[i], pitch_fac);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	800 /* 12.2: Q0 * Q13 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	801 /* 7.4: Q0 * Q14 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	802 L_temp = L_mac (L_temp, code[i], gain_code);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	803 /* 12.2: Q12 * Q1 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	804 /* 7.4: Q13 * Q1 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	805 L_temp = L_shl (L_temp, tmp_shift); /* Q16 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	806 st->exc[i] = round (L_temp); move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	807 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	808
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	809 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	810 * - Adaptive phase dispersion *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	811 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	812 ph_disp_release(&st->ph_disp_st); /* free phase dispersion adaption */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	813
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	814 test (); test (); test (); test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	815 if ( ((sub(mode, MR475) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	816 (sub(mode, MR515) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	817 (sub(mode, MR59) == 0)) &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	818 sub(st->voicedHangover, 3) > 0 &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	819 st->inBackgroundNoise != 0 &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	820 bfi != 0 )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	821 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	822 ph_disp_lock(&st->ph_disp_st); /* Always Use full Phase Disp. */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	823 } /* if error in bg noise */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	824
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	825 /* apply phase dispersion to innovation (if enabled) and
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	826 compute total excitation for synthesis part */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	827 ph_disp(&st->ph_disp_st, mode,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	828 exc_enhanced, gain_code_mix, gain_pit, code,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	829 pitch_fac, tmp_shift);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	830
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	831 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	832 * - The Excitation control module are active during BFI.*
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	833 * - Conceal drops in signal energy if in bg noise. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	834 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	835
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	836 L_temp = 0; move32 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	837 for (i = 0; i < L_SUBFR; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	838 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	839 L_temp = L_mac (L_temp, exc_enhanced[i], exc_enhanced[i] );
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	840 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	841
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	842 L_temp = L_shr (L_temp, 1); /* excEnergy = sqrt(L_temp) in Q0 */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	843 L_temp = sqrt_l_exp(L_temp, &temp); move32 (); /* function result */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	844 L_temp = L_shr(L_temp, add( shr(temp, 1), 15));
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	845 L_temp = L_shr(L_temp, 2); /* To cope with 16-bit and */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	846 excEnergy = extract_l(L_temp); /* scaling in ex_ctrl() */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	847
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	848 test (); test (); test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	849 test (); test (); test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	850 if ( ((sub (mode, MR475) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	851 (sub (mode, MR515) == 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	852 (sub (mode, MR59) == 0)) &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	853 sub(st->voicedHangover, 5) > 0 &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	854 st->inBackgroundNoise != 0 &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	855 sub(st->state, 4) < 0 &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	856 ( (pdfi != 0 && st->prev_pdf != 0) \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	857 bfi != 0 \|\|
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	858 st->prev_bf != 0) )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	859 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	860 carefulFlag = 0; move32 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	861 test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	862 if ( pdfi != 0 && bfi == 0 )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	863 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	864 carefulFlag = 1; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	865 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	866
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	867 Ex_ctrl(exc_enhanced,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	868 excEnergy,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	869 st->excEnergyHist,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	870 st->voicedHangover,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	871 st->prev_bf,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	872 carefulFlag);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	873 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	874
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	875 test (); test (); test (); test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	876 if ( st->inBackgroundNoise != 0 &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	877 ( bfi != 0 \|\| st->prev_bf != 0 ) &&
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	878 sub(st->state, 4) < 0 )
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	879 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	880 ; /* do nothing! */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	881 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	882 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	883 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	884 /* Update energy history for all modes */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	885 for (i = 0; i < 8; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	886 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	887 st->excEnergyHist[i] = st->excEnergyHist[i+1]; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	888 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	889 st->excEnergyHist[8] = excEnergy; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	890 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	891 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	892 * Excitation control module end. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	893 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	894
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	895 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	896 if (sub (pit_sharp, 16384) > 0)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	897 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	898 for (i = 0; i < L_SUBFR; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	899 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	900 excp[i] = add (excp[i], exc_enhanced[i]);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	901 move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	902 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	903 agc2 (exc_enhanced, excp, L_SUBFR);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	904 Overflow = 0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	905 Syn_filt (Az, excp, &synth[i_subfr], L_SUBFR,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	906 st->mem_syn, 0);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	907 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	908 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	909 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	910 Overflow = 0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	911 Syn_filt (Az, exc_enhanced, &synth[i_subfr], L_SUBFR,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	912 st->mem_syn, 0);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	913 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	914
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	915 test ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	916 if (Overflow != 0) /* Test for overflow */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	917 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	918 for (i = 0; i < PIT_MAX + L_INTERPOL + L_SUBFR; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	919 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	920 st->old_exc[i] = shr(st->old_exc[i], 2); move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	921 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	922 for (i = 0; i < L_SUBFR; i++)
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	923 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	924 exc_enhanced[i] = shr(exc_enhanced[i], 2); move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	925 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	926 Syn_filt(Az, exc_enhanced, &synth[i_subfr], L_SUBFR, st->mem_syn, 1);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	927 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	928 else
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	929 {
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	930 Copy(&synth[i_subfr+L_SUBFR-M], st->mem_syn, M);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	931 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	932
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	933 /--------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	934 * Update signal for next frame. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	935 * -> shift to the left by L_SUBFR st->exc[] *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	936 --------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	937
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	938 Copy (&st->old_exc[L_SUBFR], &st->old_exc[0], PIT_MAX + L_INTERPOL);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	939
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	940 /* interpolated LPC parameters for next subframe */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	941 Az += MP1; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	942
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	943 /* store T0 for next subframe */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	944 st->old_T0 = T0; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	945 }
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	946
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	947 /-------------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	948 * Call the Source Characteristic Detector which updates *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	949 * st->inBackgroundNoise and st->voicedHangover. *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	950 -------------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	951
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	952 st->inBackgroundNoise = Bgn_scd(&st->background_state,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	953 &(st->ltpGainHistory[0]),
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	954 &(synth[0]),
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	955 &(st->voicedHangover) );
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	956
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	957 dtx_dec_activity_update(&st->dtxDecoderState,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	958 st->lsfState.past_lsf_q,
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	959 synth);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	960
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	961 /* store bfi for next subframe */
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	962 st->prev_bf = bfi; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	963 st->prev_pdf = pdfi; move16 ();
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	964
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	965 /--------------------------------------------------
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	966 * Calculate the LSF averages on the eight *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	967 * previous frames *
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	968 --------------------------------------------------/
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	969
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	970 lsp_avg(&st->lsp_avg_st, st->lsfState.past_lsf_q);
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	971
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	972 the_end:
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	973 st->dtxDecoderState.dtxGlobalState = newDTXState;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	974
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	975 return 0;
7bef001cd8b8 libtwamr: integrate dec_amr.c Mychaela Falconia <falcon@freecalypso.org> parents: diff changeset	976 }

FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/dec_amr.c @ 513:03a40ac2e931