FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/gain_q.c @ 432:d4f47d0962e7

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
efrtest/etsi-enc.c: fix error in head comment
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 08 May 2024 00:43:55 +0000
parents ccba5812fa44
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
378
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ********************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 ********************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : gain_q.c
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * Purpose : Quantazation of gains
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 ********************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 /*
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 ********************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 * MODULE INCLUDE FILE AND VERSION ID
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 ********************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 #include "namespace.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 #include "gain_q.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 /*
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 ********************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 * INCLUDE FILES
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 ********************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 #include "tw_amr.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 #include "typedef.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 #include "basic_op.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 #include "no_count.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 #include "qua_gain.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 #include "cnst.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 #include "g_code.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 #include "q_gain_c.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 #include "gc_pred.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 #include "calc_en.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 #include "qgain795.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 #include "qgain475.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 #include "memops.h"
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 /*
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 ********************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 * PUBLIC PROGRAM CODE
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 ********************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 /*************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 * Function: gainQuant_reset
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 * Purpose: Initializes state memory to zero
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 **************************************************************************
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 void gainQuant_reset (gainQuantState *state)
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 {
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 state->sf0_exp_gcode0 = 0;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 state->sf0_frac_gcode0 = 0;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 state->sf0_exp_target_en = 0;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 state->sf0_frac_target_en = 0;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 Set_zero (state->sf0_exp_coeff, 5);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 Set_zero (state->sf0_frac_coeff, 5);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 gc_pred_reset(&state->gc_predSt);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 gc_pred_reset(&state->gc_predUnqSt);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 gain_adapt_reset(&state->adaptSt);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 }
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 int gainQuant(
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 gainQuantState *st, /* i/o : State struct */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 enum Mode mode, /* i : coder mode */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 Word16 res[], /* i : LP residual, Q0 */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 Word16 exc[], /* i : LTP excitation (unfiltered), Q0 */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 Word16 code[], /* i : CB innovation (unfiltered), Q13 */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 /* (unsharpened for MR475) */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 Word16 xn[], /* i : Target vector. */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 Word16 xn2[], /* i : Target vector. */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80 Word16 y1[], /* i : Adaptive codebook. */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 Word16 Y2[], /* i : Filtered innovative vector. */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82 Word16 g_coeff[], /* i : Correlations <xn y1> <y1 y1> */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 /* Compute in G_pitch(). */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 Word16 even_subframe, /* i : even subframe indicator flag */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85 Word16 gp_limit, /* i : pitch gain limit */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86 Word16 *sf0_gain_pit, /* o : Pitch gain sf 0. MR475 */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87 Word16 *sf0_gain_cod, /* o : Code gain sf 0. MR475 */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88 Word16 *gain_pit, /* i/o : Pitch gain. */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 Word16 *gain_cod, /* o : Code gain. */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 /* MR475: gain_* unquantized in even */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91 /* subframes, quantized otherwise */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 Word16 **anap /* o : Index of quantization */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93 )
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
94 {
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 Word16 exp_gcode0;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96 Word16 frac_gcode0;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 Word16 qua_ener_MR122;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98 Word16 qua_ener;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99 Word16 frac_coeff[5];
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 Word16 exp_coeff[5];
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
101 Word16 exp_en, frac_en;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102 Word16 cod_gain_exp, cod_gain_frac;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
103
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
104 test ();
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
105 if (sub (mode, MR475) == 0)
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
106 {
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
107 test ();
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
108 if (even_subframe != 0)
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
109 {
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
110 /* save position in output parameter stream and current
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
111 state of codebook gain predictor */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
112 st->gain_idx_ptr = (*anap)++;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
113 gc_pred_copy(&st->gc_predSt, &st->gc_predUnqSt);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
114
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115 /* predict codebook gain (using "unquantized" predictor)*/
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 /* (note that code[] is unsharpened in MR475) */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117 gc_pred(&st->gc_predUnqSt, mode, code,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 &st->sf0_exp_gcode0, &st->sf0_frac_gcode0,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 &exp_en, &frac_en);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 /* calculate energy coefficients for quantization
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 and store them in state structure (will be used
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 in next subframe when real quantizer is run) */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 calc_filt_energies(mode, xn, xn2, y1, Y2, g_coeff,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 st->sf0_frac_coeff, st->sf0_exp_coeff,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 &cod_gain_frac, &cod_gain_exp);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 /* store optimum codebook gain (Q1) */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 *gain_cod = shl (cod_gain_frac, add (cod_gain_exp, 1));
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 move16 ();
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 calc_target_energy(xn,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 &st->sf0_exp_target_en, &st->sf0_frac_target_en);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 /* calculate optimum codebook gain and update
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 "unquantized" predictor */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 MR475_update_unq_pred(&st->gc_predUnqSt,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 st->sf0_exp_gcode0, st->sf0_frac_gcode0,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 cod_gain_exp, cod_gain_frac);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 /* the real quantizer is not run here... */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 }
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 else
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 {
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 /* predict codebook gain (using "unquantized" predictor) */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 /* (note that code[] is unsharpened in MR475) */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 gc_pred(&st->gc_predUnqSt, mode, code,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 &exp_gcode0, &frac_gcode0,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 &exp_en, &frac_en);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 /* calculate energy coefficients for quantization */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 calc_filt_energies(mode, xn, xn2, y1, Y2, g_coeff,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 frac_coeff, exp_coeff,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 &cod_gain_frac, &cod_gain_exp);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 calc_target_energy(xn, &exp_en, &frac_en);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 /* run real (4-dim) quantizer and update real gain predictor */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 *st->gain_idx_ptr = MR475_gain_quant(
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 &st->gc_predSt,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 st->sf0_exp_gcode0, st->sf0_frac_gcode0,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 st->sf0_exp_coeff, st->sf0_frac_coeff,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 st->sf0_exp_target_en, st->sf0_frac_target_en,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 code,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 exp_gcode0, frac_gcode0,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 exp_coeff, frac_coeff,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 exp_en, frac_en,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 gp_limit,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 sf0_gain_pit, sf0_gain_cod,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 gain_pit, gain_cod);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 }
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 }
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 else
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 {
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 /*-------------------------------------------------------------------*
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 * predict codebook gain and quantize *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 * (also compute normalized CB innovation energy for MR795) *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 *-------------------------------------------------------------------*/
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 gc_pred(&st->gc_predSt, mode, code, &exp_gcode0, &frac_gcode0,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 &exp_en, &frac_en);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 test ();
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 if (sub(mode, MR122) == 0)
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 {
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 *gain_cod = G_code (xn2, Y2); move16 ();
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 *(*anap)++ = q_gain_code (mode, exp_gcode0, frac_gcode0,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 gain_cod, &qua_ener_MR122, &qua_ener);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 move16 ();
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 }
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 else
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 {
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 /* calculate energy coefficients for quantization */
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 calc_filt_energies(mode, xn, xn2, y1, Y2, g_coeff,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 frac_coeff, exp_coeff,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195 &cod_gain_frac, &cod_gain_exp);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 test ();
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 if (sub (mode, MR795) == 0)
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 {
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 MR795_gain_quant(&st->adaptSt, res, exc, code,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 frac_coeff, exp_coeff,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 exp_en, frac_en,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 exp_gcode0, frac_gcode0, L_SUBFR,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 cod_gain_frac, cod_gain_exp,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 gp_limit, gain_pit, gain_cod,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 &qua_ener_MR122, &qua_ener,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 anap);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 }
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 else
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 {
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 *(*anap)++ = Qua_gain(mode,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 exp_gcode0, frac_gcode0,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 frac_coeff, exp_coeff, gp_limit,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 gain_pit, gain_cod,
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 &qua_ener_MR122, &qua_ener);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 move16 ();
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 }
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 }
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 /*------------------------------------------------------------------*
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 * update table of past quantized energies *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 * st->past_qua_en(Q10) = 20 * Log10(qua_gain_code) / constant *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 * = Log2(qua_gain_code) *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 * = qua_ener *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 * constant = 20*Log10(2) *
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 *------------------------------------------------------------------*/
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 gc_pred_update(&st->gc_predSt, qua_ener_MR122, qua_ener);
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 }
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 return 0;
ccba5812fa44 libtwamr: integrate gain_q.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 }