FreeCalypso > hg > gsmhr-codec-ref

annotate host.c @ 0:9008dbc8ca74

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
import original C code from GSM 06.06
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 14 Jun 2024 23:27:16 +0000
parents
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
1 /***************************************************************************
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
2 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
3 * File Name: host.c
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
4 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
5 * Purpose: Contains functions for file I/O and formatting, no signal
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
6 * processing.
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
7 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
8 * The functions in this file are listed below. All are level 2
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
9 * fuctions, where level 0 is main(), except for fillBitAlloc() which
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
10 * is level 3. The two "Interface" routines perform truncation of the
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
11 * three least significant bits of the 16 bit linear input. The others
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
12 * are simply file I/O functions and data reformatters.
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
13 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
14 * fillBitAlloc()
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
15 * hostEncoderInterface()
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
16 * readDecfile()
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
17 * speechDecoderHostInterface()
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
18 * writeEncfile()
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
19 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
20 **************************************************************************/
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
21
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
22 /*_________________________________________________________________________
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
23 | |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
24 | Include Files |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
25 |_________________________________________________________________________|
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
26 */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
27
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
28 #include <stdio.h>
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
29 #include "typedefs.h"
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
30
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
31 /***************************************************************************
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
32 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
33 * FUNCTION NAME: fillBitAlloc
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
34 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
35 * PURPOSE:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
36 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
37 * Arrange speech parameters for encoder output
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
38 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
39 * INPUTS:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
40 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
41 * The speechcoders codewords:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
42 * iR0 - Frame energy
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
43 * piVqIndeces[0:2] - LPC vector quantizer codewords
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
44 * iSoftInterp - Soft interpolation bit 1 or 0
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
45 * iVoicing - voicing mode 0,1,2,3
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
46 * piLags[0:3] - Frame and delta lag codewords
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
47 * piCodeWrdsA[0:3] - VSELP codevector 1
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
48 * piCodeWrdsB[0:3] - VSELP codevector 2 (n/a for voiced modes)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
49 * piGsp0s[0:3] - GSP0 codewords
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
50 * swVadFlag - voice activity detection flag
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
51 * swSP - Speech flag
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
52 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
53 * OUTPUTS:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
54 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
55 * pswBAlloc[0:20] - an array into which the coded data is moved
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
56 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
57 * RETURN VALUE:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
58 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
59 * none
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
60 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
61 * REFERENCES: Sub-clause 2.1 and 4.1.12 of GSM Recomendation 06.20
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
62 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
63 **************************************************************************/
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
64
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
65 void fillBitAlloc(int iVoicing, int iR0, int *piVqIndeces,
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
66 int iSoftInterp, int *piLags,
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
67 int *piCodeWrdsA, int *piCodeWrdsB,
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
68 int *piGsp0s, Shortword swVadFlag,
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
69 Shortword swSP, Shortword *pswBAlloc)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
70 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
71
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
72 /*_________________________________________________________________________
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
73 | |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
74 | Automatic Variables |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
75 |_________________________________________________________________________|
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
76 */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
77
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
78 int i;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
79 Shortword *pswNxt;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
80
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
81 /*_________________________________________________________________________
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
82 | |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
83 | Executable Code |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
84 |_________________________________________________________________________|
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
85 */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
86
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
87 pswNxt = pswBAlloc;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
88 *pswNxt++ = iR0;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
89 for (i = 0; i < 3; i++)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
90 *pswNxt++ = *piVqIndeces++;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
91 *pswNxt++ = iSoftInterp;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
92 *pswNxt++ = iVoicing;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
93
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
94 /* check voicing mode */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
95 if (iVoicing)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
96 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
97 /* voiced mode */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
98 for (i = 0; i < N_SUB; i++)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
99 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
100 *pswNxt++ = *piLags++;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
101 *pswNxt++ = *piCodeWrdsA++;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
102 *pswNxt++ = *piGsp0s++;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
103 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
104 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
105 else
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
106 { /* unvoiced frame */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
107 for (i = 0; i < N_SUB; i++)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
108 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
109 *pswNxt++ = *piCodeWrdsA++;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
110 *pswNxt++ = *piCodeWrdsB++;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
111 *pswNxt++ = *piGsp0s++;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
112 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
113 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
114 *pswNxt++ = swVadFlag;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
115 *pswNxt++ = swSP;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
116 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
117
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
118 /***************************************************************************
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
119 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
120 * FUNCTION NAME: hostEncoderInterface
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
121 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
122 * PURPOSE:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
123 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
124 * Read in speech data from a file. Zero the least significant 3 bits.
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
125 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
126 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
127 * INPUTS:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
128 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
129 * pfileInSpeech
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
130 * FILE pointer to the binary input file
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
131 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
132 * iNumToRead
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
133 * Number of samples to read from the file, typically
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
134 * 160 (20 ms of speech).
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
135 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
136 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
137 * OUTPUTS:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
138 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
139 * pswSamplesRead[]
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
140 * The speech samples read in from the file.
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
141 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
142 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
143 * RETURN VALUE:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
144 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
145 * iNumRead
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
146 * The number of samples actually read.
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
147 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
148 * IMPLEMENTATION:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
149 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
150 * The input speech file should be in "native" format. This means that
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
151 * the file is to be read (by this program) and written (by another
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
152 * program) as short ints (not chars).
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
153 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
154 * If not enough samples are available in the file, the number actually
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
155 * read is returned. If the read fails to fill the requested iNumToRead
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
156 * samples, then the rest are zeroed.
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
157 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
158 * In all cases the least significant 3 bits of all speech samples are
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
159 * zeroed.
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
160 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
161 * REFERENCES: Sub-clause 4.1 of GSM Recomendation 06.20
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
162 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
163 * KEYWORDS: read, read speech, get speech data
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
164 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
165 **************************************************************************/
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
166
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
167 int hostEncoderInterface(FILE *pfileInSpeech, int iNumToRead,
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
168 Shortword pswSamplesRead[])
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
169 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
170
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
171 /*_________________________________________________________________________
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
172 | |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
173 | Automatic Variables |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
174 |_________________________________________________________________________|
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
175 */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
176 int iNumRead,
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
177 i;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
178
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
179 /*_________________________________________________________________________
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
180 | |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
181 | Executable Code |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
182 |_________________________________________________________________________|
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
183 */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
184
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
185 iNumRead = fread((char *) pswSamplesRead, sizeof (Shortword),
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
186 iNumToRead, pfileInSpeech);
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
187
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
188 /* Delete the 3 LSB's - 13 bit speech input */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
189 /*------------------------------------------*/
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
190
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
191 for (i = 0; i < iNumRead; i++)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
192 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
193 pswSamplesRead[i] &= 0xfff8;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
194 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
195
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
196
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
197 /* Fill out the iNumToRead buffer with zeroes */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
198 /*--------------------------------------------*/
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
199
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
200 if (iNumRead != iNumToRead)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
201 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
202 for (i = iNumRead; i < iNumToRead; i++)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
203 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
204 pswSamplesRead[i] = 0;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
205 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
206 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
207 return (iNumRead);
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
208 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
209
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
210 /***************************************************************************
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
211 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
212 * FUNCTION NAME: readDecfile
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
213 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
214 * PURPOSE:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
215 * Reads decoder parameter input file
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
216 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
217 * INPUT:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
218 * infile decoder parameter input file.
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
219 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
220 * OUTPUT:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
221 * pswSpeechPara array of received 16-bit values
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
222 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
223 * RETURN:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
224 * 0 successfully read a complete frame of data
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
225 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
226 * REFERENCES: Sub-clause 4.2 of GSM Recomendation 06.20
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
227 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
228 * KEYWORDS: pswSpeechPara
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
229 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
230 **************************************************************************/
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
231
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
232 int readDecfile(FILE *infile, Shortword pswSpeechPara[])
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
233 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
234 if (fread((char *) pswSpeechPara, sizeof (Shortword), 22, infile) == 0)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
235 return (1);
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
236 else
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
237 return (0);
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
238 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
239
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
240 /***************************************************************************
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
241 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
242 * FUNCTION NAME: speechDecoderHostInterface
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
243 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
244 * PURPOSE:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
245 * The purpose of this function is to truncate the linear pcm and write
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
246 * it into the output file
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
247 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
248 * INPUTS:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
249 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
250 * F_LEN
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
251 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
252 * 160 = linear pcm output frame size
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
253 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
254 * pswDecodedSpeechFrame[0:F_LEN-1]
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
255 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
256 * 16 bit linear pcm
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
257 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
258 * OUTPUTS:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
259 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
260 * fpfileSpeechOut
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
261 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
262 * 13 bit linear pcm stored to file given by this pointer
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
263 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
264 * RETURN VALUE:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
265 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
266 * none
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
267 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
268 * IMPLEMENTATION:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
269 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
270 * REFERENCES: Sub-clause 4.2 of GSM Recomendation 06.20
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
271 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
272 * KEYWORDS: synthesis, speechdecoder, decoding, truncation
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
273 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
274 **************************************************************************/
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
275
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
276 void speechDecoderHostInterface(Shortword pswDecodedSpeechFrame[],
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
277 FILE *fpfileSpeechOut)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
278 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
279
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
280 /*_________________________________________________________________________
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
281 | |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
282 | Local Constants |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
283 |_________________________________________________________________________|
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
284 */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
285
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
286 #define PCM_MASK 0xfff8 /* 16 to 13 bit linear PCM mask */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
287
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
288 /*_________________________________________________________________________
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
289 | |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
290 | Automatic Variables |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
291 |_________________________________________________________________________|
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
292 */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
293
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
294 short int i;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
295
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
296 /*_________________________________________________________________________
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
297 | |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
298 | Executable Code |
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
299 |_________________________________________________________________________|
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
300 */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
301
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
302 /* truncate the 16 bit linear pcm to 13 bits */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
303 /* ----------------------------------------- */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
304
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
305 for (i = 0; i < F_LEN; i++)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
306 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
307 pswDecodedSpeechFrame[i] = pswDecodedSpeechFrame[i] & PCM_MASK;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
308 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
309
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
310 /* F_LEN samples of linear pcm to output file */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
311 /* ------------------------------------------ */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
312
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
313 fwrite((char *) pswDecodedSpeechFrame, sizeof (Shortword),
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
314 F_LEN, fpfileSpeechOut);
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
315 }
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
316
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
317 /***************************************************************************
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
318 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
319 * FUNCTION NAME: writeEncfile
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
320 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
321 * PURPOSE:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
322 * Writes encoded parameters to ouput file
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
323 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
324 * INPUT:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
325 * pswSpeechPara array of encoded parameter words.
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
326 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
327 * OUTPUT:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
328 * fpfileEnc 16-bit encoded values.
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
329 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
330 * RETURN:
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
331 * i number of bytes written
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
332 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
333 * REFERENCES: Sub-clause 4.1 of GSM Recomendation 06.20
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
334 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
335 * KEYWORDS: pswSpeechPara, fpfileEnc
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
336 *
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
337 **************************************************************************
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
338 */
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
339
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
340 int writeEncfile(Shortword pswSpeechPara[], FILE *fpfileEnc)
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
341 {
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
342 int i;
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
343
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
344 i = fwrite((char *) pswSpeechPara, sizeof (Shortword), 20, fpfileEnc);
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
345
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
346 return (i);
9008dbc8ca74 import original C code from GSM 06.06
Mychaela Falconia <falcon@freecalypso.org>
parents:
diff changeset
347 }