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annotate libtwamr/dec_amr.c @ 556:18aca50d68df default tip

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doc/Calypso-TCH-downlink: update for FR1 BFI-with-data
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 11 Oct 2024 01:54:00 +0000
parents 7bef001cd8b8
children
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1 /*************************************************************************
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2 *
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3 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
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4 * R99 Version 3.3.0
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5 * REL-4 Version 4.1.0
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6 *
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7 *****************************************************************************
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8 *
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9 * File : dec_amr.c
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10 * Purpose : Decoding of one speech frame using given codec mode
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11 *
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12 *****************************************************************************
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13 */
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14
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15 /*
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16 *****************************************************************************
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17 * MODULE INCLUDE FILE AND VERSION ID
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18 *****************************************************************************
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19 */
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20 #include "namespace.h"
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21 #include "dec_amr.h"
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22
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23 #include "typedef.h"
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24 #include "basic_op.h"
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25 #include "no_count.h"
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26 #include "cnst.h"
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27 #include "memops.h"
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28 #include "syn_filt.h"
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29 #include "d_plsf.h"
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30 #include "agc.h"
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31 #include "int_lpc.h"
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32 #include "dec_gain.h"
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33 #include "dec_lag3.h"
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34 #include "dec_lag6.h"
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35 #include "d2_9pf.h"
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36 #include "d2_11pf.h"
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37 #include "d3_14pf.h"
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38 #include "d4_17pf.h"
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39 #include "d8_31pf.h"
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40 #include "d1035pf.h"
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41 #include "pred_lt.h"
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42 #include "d_gain_p.h"
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43 #include "d_gain_c.h"
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44 #include "dec_gain.h"
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45 #include "ec_gains.h"
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46 #include "ph_disp.h"
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47 #include "c_g_aver.h"
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48 #include "int_lsf.h"
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49 #include "lsp_lsf.h"
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50 #include "lsp_avg.h"
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51 #include "bgnscd.h"
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52 #include "ex_ctrl.h"
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53 #include "sqrt_l.h"
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54
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55 #include "lsp_tab.h"
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56 #include "bitno.h"
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57 #include "b_cn_cod.h"
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58
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59 /*
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60 *****************************************************************************
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61 * LOCAL VARIABLES AND TABLES
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62 *****************************************************************************
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63 */
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64 /*-----------------------------------------------------------------*
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65 * Decoder constant parameters (defined in "cnst.h") *
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66 *-----------------------------------------------------------------*
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67 * L_FRAME : Frame size. *
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68 * L_FRAME_BY2 : Half the frame size. *
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69 * L_SUBFR : Sub-frame size. *
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70 * M : LPC order. *
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71 * MP1 : LPC order+1 *
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72 * PIT_MIN : Minimum pitch lag. *
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73 * PIT_MIN_MR122 : Minimum pitch lag for the MR122 mode. *
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74 * PIT_MAX : Maximum pitch lag. *
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75 * L_INTERPOL : Length of filter for interpolation *
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76 * PRM_SIZE : size of vector containing analysis parameters *
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77 *-----------------------------------------------------------------*/
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78
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79 /*
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80 *****************************************************************************
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81 * PUBLIC PROGRAM CODE
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82 *****************************************************************************
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83 */
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84
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85 /*
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86 **************************************************************************
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87 *
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88 * Function : Decoder_amr_reset
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89 * Purpose : Resets state memory
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90 *
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91 **************************************************************************
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92 */
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93 void Decoder_amr_reset (Decoder_amrState *state, Flag dtx_partial_reset)
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94 {
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95 Word16 i;
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96
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97 /* Initialize static pointer */
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98 state->exc = state->old_exc + PIT_MAX + L_INTERPOL;
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99
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100 /* Static vectors to zero */
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101 Set_zero (state->old_exc, PIT_MAX + L_INTERPOL);
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102
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103 if (!dtx_partial_reset)
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104 Set_zero (state->mem_syn, M);
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105
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106 /* initialize pitch sharpening */
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107 state->sharp = SHARPMIN;
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108 state->old_T0 = 40;
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109
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110 /* Initialize state->lsp_old [] */
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111
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112 if (!dtx_partial_reset) {
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113 Copy(lsp_init_data, &state->lsp_old[0], M);
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114 }
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115
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116 /* Initialize memories of bad frame handling */
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117 state->prev_bf = 0;
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118 state->prev_pdf = 0;
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119 state->state = 0;
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120
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121 state->T0_lagBuff = 40;
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122 state->inBackgroundNoise = 0;
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123 state->voicedHangover = 0;
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124 if (!dtx_partial_reset) {
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125 for (i=0;i<9;i++)
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126 state->excEnergyHist[i] = 0;
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127 }
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128
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129 for (i = 0; i < 9; i++)
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130 state->ltpGainHistory[i] = 0;
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131
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132 Cb_gain_average_reset(&state->Cb_gain_averState);
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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_pit*st->exc[i] + gain_code*code[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 }