As signed linear audio data is accessed as 16-bit values, certain processors require...
[asterisk/asterisk.git] / include / asterisk / slin.h
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 2010, Digium, Inc.
5  *
6  * Russell Bryant <russell@digium.com>
7  *
8  * See http://www.asterisk.org for more information about
9  * the Asterisk project. Please do not directly contact
10  * any of the maintainers of this project for assistance;
11  * the project provides a web site, mailing lists and IRC
12  * channels for your use.
13  *
14  * This program is free software, distributed under the terms of
15  * the GNU General Public License Version 2. See the LICENSE file
16  * at the top of the source tree.
17  */
18
19 /* Source: beep.sln16
20  * Converted to beep.sln via file convert, then converted to hex:
21  * od -An -tx2 beep.sln | awk '{for (i=1; i<NF; i++) printf "0x%s, ", $i} {printf("0x%s,\n", $NF)}'
22  * Samples were truncated at 160 and 320 bytes.
23  */
24
25 static uint16_t ex_slin8[] = {
26         0x0002, 0xfffc, 0x0000, 0xfffe, 0x0000, 0xfffa, 0x002a, 0x007a,
27         0x003a, 0xffbe, 0xff76, 0xff84, 0x0016, 0x007e, 0x0096, 0x00d2,
28         0x00b6, 0x00b0, 0xff9a, 0xfe0a, 0xfdfe, 0xfebe, 0xff5c, 0xffb2,
29         0x0184, 0x035a, 0x02f6, 0x01e6, 0x0096, 0x003c, 0xfdf0, 0xfbfe,
30         0xfc94, 0xfdb0, 0x001c, 0x01fc, 0x03a6, 0x0450, 0x034c, 0x0132,
31         0xfe96, 0xfd5a, 0xfc0e, 0xfb14, 0xfb52, 0xfd12, 0xffda, 0x027a,
32         0x049a, 0x05e0, 0x0498, 0x01ee, 0xfe80, 0xfb80, 0xf9ee, 0xf9e4,
33         0xfbd2, 0xffb4, 0x03ce, 0x06d6, 0x0854, 0x07f6, 0x0506, 0x0052,
34         0xfb6e, 0xf79e, 0xf646, 0xf812, 0xfbea, 0x016a, 0x069e, 0x0a2e,
35         0x0b30, 0x0856, 0x0296, 0xfba0, 0xf562, 0xf284, 0xf402, 0xf8da,
36 };
37
38 static uint16_t ex_slin16[] = {
39         0x0002, 0x0025, 0x005a, 0x0075, 0x006c, 0x0052, 0x0026, 0xffde,
40         0xffa0, 0xff81, 0xff70, 0xff70, 0xff9f, 0xfff5, 0x003b, 0x0070,
41         0x008a, 0x0087, 0x00a2, 0x00ce, 0x00d3, 0x00ba, 0x00b4, 0x00c0,
42         0x0091, 0x0000, 0xff27, 0xfe52, 0xfde5, 0xfdeb, 0xfe25, 0xfe82,
43         0xfef1, 0xff4a, 0xff71, 0xff87, 0xfff5, 0x00ee, 0x022b, 0x0316,
44         0x0354, 0x0319, 0x02b8, 0x0230, 0x017d, 0x00d4, 0x0073, 0x0052,
45         0xffe8, 0xfec3, 0xfd46, 0xfc41, 0xfc08, 0xfc58, 0xfccf, 0xfd63,
46         0xfe43, 0xff74, 0x00ac, 0x01a0, 0x0279, 0x035e, 0x0416, 0x0457,
47         0x041c, 0x039b, 0x02e1, 0x01d4, 0x0086, 0xff36, 0xfe37, 0xfd9a,
48         0xfd0e, 0xfc5c, 0xfba4, 0xfb1e, 0xfaed, 0xfb14, 0xfb8f, 0xfc6c,
49         0xfda7, 0xff18, 0x0090, 0x01e5, 0x0315, 0x0433, 0x0520, 0x05ad,
50         0x05af, 0x0520, 0x041b, 0x02ba, 0x011e, 0xff72, 0xfdc9, 0xfc3c,
51         0xfaf8, 0xfa1d, 0xf9a9, 0xf99c, 0xfa18, 0xfb2b, 0xfcbf, 0xfeaa,
52         0x00b9, 0x02cd, 0x04b7, 0x0646, 0x076d, 0x0825, 0x086f, 0x0841,
53         0x0767, 0x05e5, 0x03e4, 0x018c, 0xff10, 0xfc8d, 0xfa2d, 0xf842,
54         0xf6f8, 0xf65d, 0xf67c, 0xf74e, 0xf8c1, 0xfac6, 0xfd41, 0xfff4,
55         0x02ae, 0x054f, 0x07af, 0x099d, 0x0ad8, 0x0b3a, 0x0aba, 0x094f,
56         0x0716, 0x0438, 0x00e1, 0xfd56, 0xf9e8, 0xf6d9, 0xf46d, 0xf2f8,
57         0xf2a3, 0xf35b, 0xf4fa, 0xf759, 0xfa5d, 0xfdd6, 0x0174, 0x04f5,
58         0x0829, 0x0ae4, 0x0cee, 0x0e09, 0x0e0a, 0x0ce8, 0x0acd, 0x07e9,
59 };
60
61 static inline struct ast_frame *slin8_sample(void)
62 {
63         static struct ast_frame f = {
64                 .frametype = AST_FRAME_VOICE,
65                 .subclass.codec = AST_FORMAT_SLINEAR,
66                 .datalen = sizeof(ex_slin8) * 2,
67                 .samples = ARRAY_LEN(ex_slin8),
68                 .mallocd = 0,
69                 .offset = 0,
70                 .src = __PRETTY_FUNCTION__,
71                 .data.ptr = ex_slin8,
72         };
73
74         return &f;
75 }
76
77 static inline struct ast_frame *slin16_sample(void)
78 {
79         static struct ast_frame f = {
80                 .frametype = AST_FRAME_VOICE,
81                 .subclass.codec = AST_FORMAT_SLINEAR16,
82                 .datalen = sizeof(ex_slin16) * 2,
83                 .samples = ARRAY_LEN(ex_slin16),
84                 .mallocd = 0,
85                 .offset = 0,
86                 .src = __PRETTY_FUNCTION__,
87                 .data.ptr = ex_slin16,
88         };
89
90         return &f;
91 }