source: mainline/uspace/lib/pcm/include/pcm/sample_format.h@ ea6c838

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since ea6c838 was ea6c838, checked in by Jan Vesely <jano.vesely@…>, 13 years ago

Create libpcm.

Move pcm related functions and definitions there.
Make other stuff use this library.
Rename most of it on the way.
  • Property mode set to 100644
File size: 4.7 KB
Line 
1/*
2 * Copyright (c) 2012 Jan Vesely
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup audio
30 * @brief PCM sample format
31 * @{
32 */
33/** @file
34 */
35
36#ifndef PCM_SAMPLE_FORMAT_H_
37#define PCM_SAMPLE_FORMAT_H_
38
39#include <bool.h>
40
41typedef enum {
42 PCM_SAMPLE_UINT8,
43 PCM_SAMPLE_SINT8,
44 PCM_SAMPLE_UINT16_LE,
45 PCM_SAMPLE_UINT16_BE,
46 PCM_SAMPLE_SINT16_LE,
47 PCM_SAMPLE_SINT16_BE,
48 PCM_SAMPLE_UINT24_LE,
49 PCM_SAMPLE_UINT24_BE,
50 PCM_SAMPLE_SINT24_LE,
51 PCM_SAMPLE_SINT24_BE,
52 PCM_SAMPLE_UINT24_32_LE,
53 PCM_SAMPLE_UINT24_32_BE,
54 PCM_SAMPLE_SINT24_32_LE,
55 PCM_SAMPLE_SINT24_32_BE,
56 PCM_SAMPLE_UINT32_LE,
57 PCM_SAMPLE_UINT32_BE,
58 PCM_SAMPLE_SINT32_LE,
59 PCM_SAMPLE_SINT32_BE,
60 PCM_SAMPLE_FLOAT32,
61 PCM_SAMPLE_FORMAT_LAST = PCM_SAMPLE_FLOAT32,
62} pcm_sample_format_t;
63
64static inline bool pcm_sample_format_is_signed(pcm_sample_format_t format)
65{
66 switch(format) {
67 case PCM_SAMPLE_SINT8:
68 case PCM_SAMPLE_SINT16_LE:
69 case PCM_SAMPLE_SINT16_BE:
70 case PCM_SAMPLE_SINT24_LE:
71 case PCM_SAMPLE_SINT24_BE:
72 case PCM_SAMPLE_SINT24_32_LE:
73 case PCM_SAMPLE_SINT24_32_BE:
74 case PCM_SAMPLE_SINT32_LE:
75 case PCM_SAMPLE_SINT32_BE:
76 return true;
77 case PCM_SAMPLE_UINT8:
78 case PCM_SAMPLE_UINT16_LE:
79 case PCM_SAMPLE_UINT16_BE:
80 case PCM_SAMPLE_UINT24_LE:
81 case PCM_SAMPLE_UINT24_BE:
82 case PCM_SAMPLE_UINT24_32_LE:
83 case PCM_SAMPLE_UINT24_32_BE:
84 case PCM_SAMPLE_UINT32_LE:
85 case PCM_SAMPLE_UINT32_BE:
86 case PCM_SAMPLE_FLOAT32:
87 default:
88 return false;
89 }
90}
91
92static inline size_t pcm_sample_format_size(pcm_sample_format_t format)
93{
94 switch(format) {
95 case PCM_SAMPLE_UINT8:
96 case PCM_SAMPLE_SINT8:
97 return 1;
98 case PCM_SAMPLE_UINT16_LE:
99 case PCM_SAMPLE_UINT16_BE:
100 case PCM_SAMPLE_SINT16_LE:
101 case PCM_SAMPLE_SINT16_BE:
102 return 2;
103 case PCM_SAMPLE_UINT24_LE:
104 case PCM_SAMPLE_UINT24_BE:
105 case PCM_SAMPLE_SINT24_LE:
106 case PCM_SAMPLE_SINT24_BE:
107 return 3;
108 case PCM_SAMPLE_UINT24_32_LE:
109 case PCM_SAMPLE_UINT24_32_BE:
110 case PCM_SAMPLE_SINT24_32_LE:
111 case PCM_SAMPLE_SINT24_32_BE:
112 case PCM_SAMPLE_UINT32_LE:
113 case PCM_SAMPLE_UINT32_BE:
114 case PCM_SAMPLE_SINT32_LE:
115 case PCM_SAMPLE_SINT32_BE:
116 case PCM_SAMPLE_FLOAT32:
117 return 4;
118 default:
119 return 0;
120 }
121}
122
123static inline const char * pcm_sample_format_str(pcm_sample_format_t format)
124{
125 switch(format) {
126 case PCM_SAMPLE_UINT8:
127 return "8 bit unsinged";
128 case PCM_SAMPLE_SINT8:
129 return "8 bit singed";
130 case PCM_SAMPLE_UINT16_LE:
131 return "16 bit unsigned(LE)";
132 case PCM_SAMPLE_SINT16_LE:
133 return "16 bit singed(LE)";
134 case PCM_SAMPLE_UINT16_BE:
135 return "16 bit unsigned(BE)";
136 case PCM_SAMPLE_SINT16_BE:
137 return "16 bit signed(BE)";
138 case PCM_SAMPLE_UINT24_LE:
139 return "24 bit unsigned(LE)";
140 case PCM_SAMPLE_SINT24_LE:
141 return "24 bit signed(LE)";
142 case PCM_SAMPLE_UINT24_BE:
143 return "24 bit unsigned(BE)";
144 case PCM_SAMPLE_SINT24_BE:
145 return "24 bit signed(BE)";
146 case PCM_SAMPLE_UINT24_32_LE:
147 return "24 bit(4byte aligned) unsigned(LE)";
148 case PCM_SAMPLE_UINT24_32_BE:
149 return "24 bit(4byte aligned) unsigned(BE)";
150 case PCM_SAMPLE_SINT24_32_LE:
151 return "24 bit(4byte aligned) signed(LE)";
152 case PCM_SAMPLE_SINT24_32_BE:
153 return "24 bit(4byte aligned) signed(BE)";
154 case PCM_SAMPLE_UINT32_LE:
155 return "32 bit unsigned(LE)";
156 case PCM_SAMPLE_UINT32_BE:
157 return "32 bit unsigned(BE)";
158 case PCM_SAMPLE_SINT32_LE:
159 return "32 bit signed(LE)";
160 case PCM_SAMPLE_SINT32_BE:
161 return "32 bit signed(BE)";
162 case PCM_SAMPLE_FLOAT32:
163 return "32 bit float";
164 default:
165 return "Unknown sample format";
166 }
167}
168
169#endif
170
171/**
172 * @}
173 */
174
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