FreeCalypso > hg > gsm-codec-lib

annotate libtwamr/q_plsf_5.c @ 412:810ac4b99025

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
libtwamr: integrate VAD2 r_fft.c
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 07 May 2024 01:22:02 +0000
parents 128ec87489b6
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
373
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /*
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 *
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * R99 Version 3.3.0
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * REL-4 Version 4.1.0
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 *
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * File : q_plsf_5.c
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * Purpose : Quantization of 2 sets of LSF parameters using 1st
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 * order MA prediction and split by 5 matrix
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 * quantization (split-MQ)
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 *
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 /*
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 * MODULE INCLUDE FILE AND VERSION ID
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 #include "namespace.h"
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 #include "q_plsf.h"
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 /*
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 * INCLUDE FILES
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 #include "typedef.h"
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 #include "basic_op.h"
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 #include "no_count.h"
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 #include "lsp_lsf.h"
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 #include "reorder.h"
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 #include "lsfwt.h"
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 #include "q_plsf5_tab.h"
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 /*
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 * LOCAL PROGRAM CODE
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 /* Quantization of a 4 dimensional subvector */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 static Word16 Vq_subvec (/* o : quantization index, Q0 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 Word16 *lsf_r1, /* i : 1st LSF residual vector, Q15 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 Word16 *lsf_r2, /* i : 2nd LSF residual vector, Q15 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 const Word16 *dico, /* i : quantization codebook, Q15 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 Word16 *wf1, /* i : 1st LSF weighting factors Q13 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 Word16 *wf2, /* i : 2nd LSF weighting factors Q13 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 Word16 dico_size /* i : size of quantization codebook, Q0 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 )
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 Word16 index = 0; /* initialization only needed to keep gcc silent */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 Word16 i, temp;
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 const Word16 *p_dico;
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 Word32 dist_min, dist;
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 dist_min = MAX_32; move32 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 p_dico = dico; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 for (i = 0; i < dico_size; i++)
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 temp = sub (lsf_r1[0], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 temp = mult (wf1[0], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 dist = L_mult (temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 temp = sub (lsf_r1[1], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 temp = mult (wf1[1], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71 dist = L_mac (dist, temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 temp = sub (lsf_r2[0], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 temp = mult (wf2[0], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 dist = L_mac (dist, temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77 temp = sub (lsf_r2[1], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 temp = mult (wf2[1], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 dist = L_mac (dist, temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 test ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82 if (L_sub (dist, dist_min) < (Word32) 0)
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 dist_min = dist; move32 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85 index = i; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 /* Reading the selected vector */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91 p_dico = &dico[shl (index, 2)]; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 lsf_r1[0] = *p_dico++; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93 lsf_r1[1] = *p_dico++; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
94 lsf_r2[0] = *p_dico++; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 lsf_r2[1] = *p_dico++; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 return index;
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 /* Quantization of a 4 dimensional subvector with a signed codebook */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
101
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102 static Word16 Vq_subvec_s ( /* o : quantization index Q0 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
103 Word16 *lsf_r1, /* i : 1st LSF residual vector Q15 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
104 Word16 *lsf_r2, /* i : and LSF residual vector Q15 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
105 const Word16 *dico, /* i : quantization codebook Q15 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
106 Word16 *wf1, /* i : 1st LSF weighting factors Q13 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
107 Word16 *wf2, /* i : 2nd LSF weighting factors Q13 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
108 Word16 dico_size) /* i : size of quantization codebook Q0 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
109 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
110 Word16 index = 0; /* initialization only needed to keep gcc silent */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
111 Word16 sign = 0; /* initialization only needed to keep gcc silent */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
112 Word16 i, temp;
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
113 const Word16 *p_dico;
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
114 Word32 dist_min, dist;
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 dist_min = MAX_32; move32 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117 p_dico = dico; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 for (i = 0; i < dico_size; i++)
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 /* test positive */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 temp = sub (lsf_r1[0], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 temp = mult (wf1[0], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 dist = L_mult (temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 temp = sub (lsf_r1[1], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 temp = mult (wf1[1], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 dist = L_mac (dist, temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 temp = sub (lsf_r2[0], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 temp = mult (wf2[0], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 dist = L_mac (dist, temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 temp = sub (lsf_r2[1], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 temp = mult (wf2[1], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 dist = L_mac (dist, temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 test ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 if (L_sub (dist, dist_min) < (Word32) 0)
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 dist_min = dist; move32 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 index = i; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 sign = 0; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 /* test negative */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 p_dico -= 4; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 temp = add (lsf_r1[0], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 temp = mult (wf1[0], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 dist = L_mult (temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 temp = add (lsf_r1[1], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 temp = mult (wf1[1], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 dist = L_mac (dist, temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 temp = add (lsf_r2[0], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 temp = mult (wf2[0], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 dist = L_mac (dist, temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 temp = add (lsf_r2[1], *p_dico++);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 temp = mult (wf2[1], temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 dist = L_mac (dist, temp, temp);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 test ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166 if (L_sub (dist, dist_min) < (Word32) 0)
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 dist_min = dist; move32 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 index = i; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170 sign = 1; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 /* Reading the selected vector */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 p_dico = &dico[shl (index, 2)]; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 test ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178 if (sign == 0)
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 lsf_r1[0] = *p_dico++; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 lsf_r1[1] = *p_dico++; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 lsf_r2[0] = *p_dico++; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 lsf_r2[1] = *p_dico++; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 else
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187 lsf_r1[0] = negate (*p_dico++); move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 lsf_r1[1] = negate (*p_dico++); move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 lsf_r2[0] = negate (*p_dico++); move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190 lsf_r2[1] = negate (*p_dico++); move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 index = shl (index, 1);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 index = add (index, sign);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196 return index;
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199 /*
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 * PUBLIC PROGRAM CODE
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 ********************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 /*************************************************************************
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 * FUNCTION: Q_plsf_5()
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 *
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 * PURPOSE: Quantization of 2 sets of LSF parameters using 1st order MA
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209 * prediction and split by 5 matrix quantization (split-MQ)
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 *
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 * DESCRIPTION:
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 *
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 * p[i] = pred_factor*past_rq[i]; i=0,...,m-1
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 * r1[i]= lsf1[i] - p[i]; i=0,...,m-1
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 * r2[i]= lsf2[i] - p[i]; i=0,...,m-1
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 * where:
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 * lsf1[i] 1st mean-removed LSF vector.
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 * lsf2[i] 2nd mean-removed LSF vector.
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 * r1[i] 1st residual prediction vector.
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 * r2[i] 2nd residual prediction vector.
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 * past_r2q[i] Past quantized residual (2nd vector).
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 *
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 * The residual vectors r1[i] and r2[i] are jointly quantized using
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 * split-MQ with 5 codebooks. Each 4th dimension submatrix contains 2
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 * elements from each residual vector. The 5 submatrices are as follows:
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 * {r1[0], r1[1], r2[0], r2[1]}; {r1[2], r1[3], r2[2], r2[3]};
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 * {r1[4], r1[5], r2[4], r2[5]}; {r1[6], r1[7], r2[6], r2[7]};
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 * {r1[8], r1[9], r2[8], r2[9]};
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 *
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 *************************************************************************/
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231 void Q_plsf_5 (
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 Q_plsfState *st,
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 Word16 *lsp1, /* i : 1st LSP vector, Q15 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 Word16 *lsp2, /* i : 2nd LSP vector, Q15 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 Word16 *lsp1_q, /* o : quantized 1st LSP vector, Q15 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 Word16 *lsp2_q, /* o : quantized 2nd LSP vector, Q15 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 Word16 *indice /* o : quantization indices of 5 matrices, Q0 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 )
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 Word16 i;
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 Word16 lsf1[M], lsf2[M], wf1[M], wf2[M], lsf_p[M], lsf_r1[M], lsf_r2[M];
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 Word16 lsf1_q[M], lsf2_q[M];
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 /* convert LSFs to normalize frequency domain 0..16384 */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 Lsp_lsf (lsp1, lsf1, M);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 Lsp_lsf (lsp2, lsf2, M);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 /* Compute LSF weighting factors (Q13) */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 Lsf_wt (lsf1, wf1);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 Lsf_wt (lsf2, wf2);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 /* Compute predicted LSF and prediction error */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 for (i = 0; i < M; i++)
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 lsf_p[i] = add (mean_lsf[i], mult (st->past_rq[i], LSP_PRED_FAC_MR122));
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 lsf_r1[i] = sub (lsf1[i], lsf_p[i]); move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 lsf_r2[i] = sub (lsf2[i], lsf_p[i]); move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 /*---- Split-MQ of prediction error ----*/
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266 indice[0] = Vq_subvec (&lsf_r1[0], &lsf_r2[0], dico1_lsf,
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 &wf1[0], &wf2[0], DICO1_SIZE);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
268 move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270 indice[1] = Vq_subvec (&lsf_r1[2], &lsf_r2[2], dico2_lsf,
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271 &wf1[2], &wf2[2], DICO2_SIZE);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 indice[2] = Vq_subvec_s (&lsf_r1[4], &lsf_r2[4], dico3_lsf,
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
275 &wf1[4], &wf2[4], DICO3_SIZE);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276 move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
277
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
278 indice[3] = Vq_subvec (&lsf_r1[6], &lsf_r2[6], dico4_lsf,
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279 &wf1[6], &wf2[6], DICO4_SIZE);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
280 move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
281
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
282 indice[4] = Vq_subvec (&lsf_r1[8], &lsf_r2[8], dico5_lsf,
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
283 &wf1[8], &wf2[8], DICO5_SIZE);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
284 move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
285
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
286 /* Compute quantized LSFs and update the past quantized residual */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
287 for (i = 0; i < M; i++)
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
288 {
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
289 lsf1_q[i] = add (lsf_r1[i], lsf_p[i]); move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
290 lsf2_q[i] = add (lsf_r2[i], lsf_p[i]); move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
291 st->past_rq[i] = lsf_r2[i]; move16 ();
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
292 }
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
293
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
294 /* verification that LSFs has minimum distance of LSF_GAP */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
295
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
296 Reorder_lsf (lsf1_q, LSF_GAP, M);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
297 Reorder_lsf (lsf2_q, LSF_GAP, M);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
298
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
299 /* convert LSFs to the cosine domain */
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
300
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
301 Lsf_lsp (lsf1_q, lsp1_q, M);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
302 Lsf_lsp (lsf2_q, lsp2_q, M);
128ec87489b6 libtwamr: integrate q_plsf_5.c
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
303 }