FreeBSD kernel sound device code
pcm.h
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1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2006-2009 Ariff Abdullah <ariff@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#ifndef _SND_PCM_H_
32#define _SND_PCM_H_
33
34#include <sys/param.h>
35
36/*
37 * Macros for reading/writing PCM sample / int values from bytes array.
38 * Since every process is done using signed integer (and to make our life
39 * less miserable), unsigned sample will be converted to its signed
40 * counterpart and restored during writing back. To avoid overflow,
41 * we truncate 32bit (and only 32bit) samples down to 24bit (see below
42 * for the reason), unless SND_PCM_64 is defined.
43 */
44
45/*
46 * Automatically turn on 64bit arithmetic on suitable archs
47 * (amd64 64bit, etc..) for wider 32bit samples / integer processing.
48 */
49#if LONG_BIT >= 64
50#undef SND_PCM_64
51#define SND_PCM_64 1
52#endif
53
54typedef int32_t intpcm_t;
55
56typedef int32_t intpcm8_t;
57typedef int32_t intpcm16_t;
58typedef int32_t intpcm24_t;
59
60typedef uint32_t uintpcm_t;
61
62typedef uint32_t uintpcm8_t;
63typedef uint32_t uintpcm16_t;
64typedef uint32_t uintpcm24_t;
65
66#ifdef SND_PCM_64
67typedef int64_t intpcm32_t;
68typedef uint64_t uintpcm32_t;
69#else
70typedef int32_t intpcm32_t;
71typedef uint32_t uintpcm32_t;
72#endif
73
74typedef int64_t intpcm64_t;
75typedef uint64_t uintpcm64_t;
76
77/* 32bit fixed point shift */
78#define PCM_FXSHIFT 8
79
80#define PCM_S8_MAX 0x7f
81#define PCM_S8_MIN -0x80
82#define PCM_S16_MAX 0x7fff
83#define PCM_S16_MIN -0x8000
84#define PCM_S24_MAX 0x7fffff
85#define PCM_S24_MIN -0x800000
86#ifdef SND_PCM_64
87#if LONG_BIT >= 64
88#define PCM_S32_MAX 0x7fffffffL
89#define PCM_S32_MIN -0x80000000L
90#else
91#define PCM_S32_MAX 0x7fffffffLL
92#define PCM_S32_MIN -0x80000000LL
93#endif
94#else
95#define PCM_S32_MAX 0x7fffffff
96#define PCM_S32_MIN (-0x7fffffff - 1)
97#endif
98
99/* Bytes-per-sample definition */
100#define PCM_8_BPS 1
101#define PCM_16_BPS 2
102#define PCM_24_BPS 3
103#define PCM_32_BPS 4
104
105#define INTPCM_T(v) ((intpcm_t)(v))
106#define INTPCM8_T(v) ((intpcm8_t)(v))
107#define INTPCM16_T(v) ((intpcm16_t)(v))
108#define INTPCM24_T(v) ((intpcm24_t)(v))
109#define INTPCM32_T(v) ((intpcm32_t)(v))
110
111#if BYTE_ORDER == LITTLE_ENDIAN
112#define _PCM_READ_S16_LE(b8) INTPCM_T(*((int16_t *)(b8)))
113#define _PCM_READ_S32_LE(b8) INTPCM_T(*((int32_t *)(b8)))
114#define _PCM_READ_S16_BE(b8) \
115 INTPCM_T((b8)[1] | (((int8_t)((b8)[0])) << 8))
116#define _PCM_READ_S32_BE(b8) \
117 INTPCM_T((b8)[3] | ((b8)[2] << 8) | ((b8)[1] << 16) | \
118 (((int8_t)((b8)[0])) << 24))
119
120#define _PCM_WRITE_S16_LE(b8, val) do { \
121 *((int16_t *)(b8)) = (val); \
122} while (0)
123#define _PCM_WRITE_S32_LE(b8, val) do { \
124 *((int32_t *)(b8)) = (val); \
125} while (0)
126#define _PCM_WRITE_S16_BE(bb8, vval) do { \
127 intpcm_t val = (vval); \
128 uint8_t *b8 = (bb8); \
129 b8[1] = val; \
130 b8[0] = val >> 8; \
131} while (0)
132#define _PCM_WRITE_S32_BE(bb8, vval) do { \
133 intpcm_t val = (vval); \
134 uint8_t *b8 = (bb8); \
135 b8[3] = val; \
136 b8[2] = val >> 8; \
137 b8[1] = val >> 16; \
138 b8[0] = val >> 24; \
139} while (0)
140
141#define _PCM_READ_U16_LE(b8) \
142 INTPCM_T((int16_t)(*((uint16_t *)(b8)) ^ 0x8000))
143#define _PCM_READ_U32_LE(b8) \
144 INTPCM_T((int32_t)(*((uint32_t *)(b8)) ^ 0x80000000))
145#define _PCM_READ_U16_BE(b8) \
146 INTPCM_T((b8)[1] | (((int8_t)((b8)[0] ^ 0x80)) << 8))
147#define _PCM_READ_U32_BE(b8) \
148 INTPCM_T((b8)[3] | ((b8)[2] << 8) | ((b8)[1] << 16) | \
149 (((int8_t)((b8)[0] ^ 0x80)) << 24))
150
151#define _PCM_WRITE_U16_LE(b8, val) do { \
152 *((uint16_t *)(b8)) = (val) ^ 0x8000; \
153} while (0)
154#define _PCM_WRITE_U32_LE(b8, val) do { \
155 *((uint32_t *)(b8)) = (val) ^ 0x80000000; \
156} while (0)
157#define _PCM_WRITE_U16_BE(bb8, vval) do { \
158 intpcm_t val = (vval); \
159 uint8_t *b8 = (bb8); \
160 b8[1] = val; \
161 b8[0] = (val >> 8) ^ 0x80; \
162} while (0)
163#define _PCM_WRITE_U32_BE(bb8, vval) do { \
164 intpcm_t val = (vval); \
165 uint8_t *b8 = (bb8); \
166 b8[3] = val; \
167 b8[2] = val >> 8; \
168 b8[1] = val >> 16; \
169 b8[0] = (val >> 24) ^ 0x80; \
170} while (0)
171
172#define _PCM_READ_S16_NE(b8) _PCM_READ_S16_LE(b8)
173#define _PCM_READ_U16_NE(b8) _PCM_READ_U16_LE(b8)
174#define _PCM_READ_S32_NE(b8) _PCM_READ_S32_LE(b8)
175#define _PCM_READ_U32_NE(b8) _PCM_READ_U32_LE(b8)
176#define _PCM_WRITE_S16_NE(b6) _PCM_WRITE_S16_LE(b8)
177#define _PCM_WRITE_U16_NE(b6) _PCM_WRITE_U16_LE(b8)
178#define _PCM_WRITE_S32_NE(b6) _PCM_WRITE_S32_LE(b8)
179#define _PCM_WRITE_U32_NE(b6) _PCM_WRITE_U32_LE(b8)
180#else /* !LITTLE_ENDIAN */
181#define _PCM_READ_S16_LE(b8) \
182 INTPCM_T((b8)[0] | (((int8_t)((b8)[1])) << 8))
183#define _PCM_READ_S32_LE(b8) \
184 INTPCM_T((b8)[0] | ((b8)[1] << 8) | ((b8)[2] << 16) | \
185 (((int8_t)((b8)[3])) << 24))
186#define _PCM_READ_S16_BE(b8) INTPCM_T(*((int16_t *)(b8)))
187#define _PCM_READ_S32_BE(b8) INTPCM_T(*((int32_t *)(b8)))
188
189#define _PCM_WRITE_S16_LE(bb8, vval) do { \
190 intpcm_t val = (vval); \
191 uint8_t *b8 = (bb8); \
192 b8[0] = val; \
193 b8[1] = val >> 8; \
194} while (0)
195#define _PCM_WRITE_S32_LE(bb8, vval) do { \
196 intpcm_t val = (vval); \
197 uint8_t *b8 = (bb8); \
198 b8[0] = val; \
199 b8[1] = val >> 8; \
200 b8[2] = val >> 16; \
201 b8[3] = val >> 24; \
202} while (0)
203#define _PCM_WRITE_S16_BE(b8, val) do { \
204 *((int16_t *)(b8)) = (val); \
205} while (0)
206#define _PCM_WRITE_S32_BE(b8, val) do { \
207 *((int32_t *)(b8)) = (val); \
208} while (0)
209
210#define _PCM_READ_U16_LE(b8) \
211 INTPCM_T((b8)[0] | (((int8_t)((b8)[1] ^ 0x80)) << 8))
212#define _PCM_READ_U32_LE(b8) \
213 INTPCM_T((b8)[0] | ((b8)[1] << 8) | ((b8)[2] << 16) | \
214 (((int8_t)((b8)[3] ^ 0x80)) << 24))
215#define _PCM_READ_U16_BE(b8) \
216 INTPCM_T((int16_t)(*((uint16_t *)(b8)) ^ 0x8000))
217#define _PCM_READ_U32_BE(b8) \
218 INTPCM_T((int32_t)(*((uint32_t *)(b8)) ^ 0x80000000))
219
220#define _PCM_WRITE_U16_LE(bb8, vval) do { \
221 intpcm_t val = (vval); \
222 uint8_t *b8 = (bb8); \
223 b8[0] = val; \
224 b8[1] = (val >> 8) ^ 0x80; \
225} while (0)
226#define _PCM_WRITE_U32_LE(bb8, vval) do { \
227 intpcm_t val = (vval); \
228 uint8_t *b8 = (bb8); \
229 b8[0] = val; \
230 b8[1] = val >> 8; \
231 b8[2] = val >> 16; \
232 b8[3] = (val >> 24) ^ 0x80; \
233} while (0)
234#define _PCM_WRITE_U16_BE(b8, val) do { \
235 *((uint16_t *)(b8)) = (val) ^ 0x8000; \
236} while (0)
237#define _PCM_WRITE_U32_BE(b8, val) do { \
238 *((uint32_t *)(b8)) = (val) ^ 0x80000000; \
239} while (0)
240
241#define _PCM_READ_S16_NE(b8) _PCM_READ_S16_BE(b8)
242#define _PCM_READ_U16_NE(b8) _PCM_READ_U16_BE(b8)
243#define _PCM_READ_S32_NE(b8) _PCM_READ_S32_BE(b8)
244#define _PCM_READ_U32_NE(b8) _PCM_READ_U32_BE(b8)
245#define _PCM_WRITE_S16_NE(b6) _PCM_WRITE_S16_BE(b8)
246#define _PCM_WRITE_U16_NE(b6) _PCM_WRITE_U16_BE(b8)
247#define _PCM_WRITE_S32_NE(b6) _PCM_WRITE_S32_BE(b8)
248#define _PCM_WRITE_U32_NE(b6) _PCM_WRITE_U32_BE(b8)
249#endif /* LITTLE_ENDIAN */
250
251#define _PCM_READ_S24_LE(b8) \
252 INTPCM_T((b8)[0] | ((b8)[1] << 8) | (((int8_t)((b8)[2])) << 16))
253#define _PCM_READ_S24_BE(b8) \
254 INTPCM_T((b8)[2] | ((b8)[1] << 8) | (((int8_t)((b8)[0])) << 16))
255
256#define _PCM_WRITE_S24_LE(bb8, vval) do { \
257 intpcm_t val = (vval); \
258 uint8_t *b8 = (bb8); \
259 b8[0] = val; \
260 b8[1] = val >> 8; \
261 b8[2] = val >> 16; \
262} while (0)
263#define _PCM_WRITE_S24_BE(bb8, vval) do { \
264 intpcm_t val = (vval); \
265 uint8_t *b8 = (bb8); \
266 b8[2] = val; \
267 b8[1] = val >> 8; \
268 b8[0] = val >> 16; \
269} while (0)
270
271#define _PCM_READ_U24_LE(b8) \
272 INTPCM_T((b8)[0] | ((b8)[1] << 8) | \
273 (((int8_t)((b8)[2] ^ 0x80)) << 16))
274#define _PCM_READ_U24_BE(b8) \
275 INTPCM_T((b8)[2] | ((b8)[1] << 8) | \
276 (((int8_t)((b8)[0] ^ 0x80)) << 16))
277
278#define _PCM_WRITE_U24_LE(bb8, vval) do { \
279 intpcm_t val = (vval); \
280 uint8_t *b8 = (bb8); \
281 b8[0] = val; \
282 b8[1] = val >> 8; \
283 b8[2] = (val >> 16) ^ 0x80; \
284} while (0)
285#define _PCM_WRITE_U24_BE(bb8, vval) do { \
286 intpcm_t val = (vval); \
287 uint8_t *b8 = (bb8); \
288 b8[2] = val; \
289 b8[1] = val >> 8; \
290 b8[0] = (val >> 16) ^ 0x80; \
291} while (0)
292
293#if BYTE_ORDER == LITTLE_ENDIAN
294#define _PCM_READ_S24_NE(b8) _PCM_READ_S24_LE(b8)
295#define _PCM_READ_U24_NE(b8) _PCM_READ_U24_LE(b8)
296#define _PCM_WRITE_S24_NE(b6) _PCM_WRITE_S24_LE(b8)
297#define _PCM_WRITE_U24_NE(b6) _PCM_WRITE_U24_LE(b8)
298#else /* !LITTLE_ENDIAN */
299#define _PCM_READ_S24_NE(b8) _PCM_READ_S24_BE(b8)
300#define _PCM_READ_U24_NE(b8) _PCM_READ_U24_BE(b8)
301#define _PCM_WRITE_S24_NE(b6) _PCM_WRITE_S24_BE(b8)
302#define _PCM_WRITE_U24_NE(b6) _PCM_WRITE_U24_BE(b8)
303#endif /* LITTLE_ENDIAN */
304/*
305 * 8bit sample is pretty much useless since it doesn't provide
306 * sufficient dynamic range throughout our filtering process.
307 * For the sake of completeness, declare it anyway.
308 */
309#define _PCM_READ_S8_NE(b8) INTPCM_T(*((int8_t *)(b8)))
310#define _PCM_READ_U8_NE(b8) \
311 INTPCM_T((int8_t)(*((uint8_t *)(b8)) ^ 0x80))
312
313#define _PCM_WRITE_S8_NE(b8, val) do { \
314 *((int8_t *)(b8)) = (val); \
315} while (0)
316#define _PCM_WRITE_U8_NE(b8, val) do { \
317 *((uint8_t *)(b8)) = (val) ^ 0x80; \
318} while (0)
319
320/*
321 * Common macross. Use this instead of "_", unless we want
322 * the real sample value.
323 */
324
325/* 8bit */
326#define PCM_READ_S8_NE(b8) _PCM_READ_S8_NE(b8)
327#define PCM_READ_U8_NE(b8) _PCM_READ_U8_NE(b8)
328#define PCM_WRITE_S8_NE(b8, val) _PCM_WRITE_S8_NE(b8, val)
329#define PCM_WRITE_U8_NE(b8, val) _PCM_WRITE_U8_NE(b8, val)
330
331/* 16bit */
332#define PCM_READ_S16_LE(b8) _PCM_READ_S16_LE(b8)
333#define PCM_READ_S16_BE(b8) _PCM_READ_S16_BE(b8)
334#define PCM_READ_U16_LE(b8) _PCM_READ_U16_LE(b8)
335#define PCM_READ_U16_BE(b8) _PCM_READ_U16_BE(b8)
336
337#define PCM_WRITE_S16_LE(b8, val) _PCM_WRITE_S16_LE(b8, val)
338#define PCM_WRITE_S16_BE(b8, val) _PCM_WRITE_S16_BE(b8, val)
339#define PCM_WRITE_U16_LE(b8, val) _PCM_WRITE_U16_LE(b8, val)
340#define PCM_WRITE_U16_BE(b8, val) _PCM_WRITE_U16_BE(b8, val)
341
342#define PCM_READ_S16_NE(b8) _PCM_READ_S16_NE(b8)
343#define PCM_READ_U16_NE(b8) _PCM_READ_U16_NE(b8)
344#define PCM_WRITE_S16_NE(b8) _PCM_WRITE_S16_NE(b8)
345#define PCM_WRITE_U16_NE(b8) _PCM_WRITE_U16_NE(b8)
346
347/* 24bit */
348#define PCM_READ_S24_LE(b8) _PCM_READ_S24_LE(b8)
349#define PCM_READ_S24_BE(b8) _PCM_READ_S24_BE(b8)
350#define PCM_READ_U24_LE(b8) _PCM_READ_U24_LE(b8)
351#define PCM_READ_U24_BE(b8) _PCM_READ_U24_BE(b8)
352
353#define PCM_WRITE_S24_LE(b8, val) _PCM_WRITE_S24_LE(b8, val)
354#define PCM_WRITE_S24_BE(b8, val) _PCM_WRITE_S24_BE(b8, val)
355#define PCM_WRITE_U24_LE(b8, val) _PCM_WRITE_U24_LE(b8, val)
356#define PCM_WRITE_U24_BE(b8, val) _PCM_WRITE_U24_BE(b8, val)
357
358#define PCM_READ_S24_NE(b8) _PCM_READ_S24_NE(b8)
359#define PCM_READ_U24_NE(b8) _PCM_READ_U24_NE(b8)
360#define PCM_WRITE_S24_NE(b8) _PCM_WRITE_S24_NE(b8)
361#define PCM_WRITE_U24_NE(b8) _PCM_WRITE_U24_NE(b8)
362
363/* 32bit */
364#ifdef SND_PCM_64
365#define PCM_READ_S32_LE(b8) _PCM_READ_S32_LE(b8)
366#define PCM_READ_S32_BE(b8) _PCM_READ_S32_BE(b8)
367#define PCM_READ_U32_LE(b8) _PCM_READ_U32_LE(b8)
368#define PCM_READ_U32_BE(b8) _PCM_READ_U32_BE(b8)
369
370#define PCM_WRITE_S32_LE(b8, val) _PCM_WRITE_S32_LE(b8, val)
371#define PCM_WRITE_S32_BE(b8, val) _PCM_WRITE_S32_BE(b8, val)
372#define PCM_WRITE_U32_LE(b8, val) _PCM_WRITE_U32_LE(b8, val)
373#define PCM_WRITE_U32_BE(b8, val) _PCM_WRITE_U32_BE(b8, val)
374
375#define PCM_READ_S32_NE(b8) _PCM_READ_S32_NE(b8)
376#define PCM_READ_U32_NE(b8) _PCM_READ_U32_NE(b8)
377#define PCM_WRITE_S32_NE(b8) _PCM_WRITE_S32_NE(b8)
378#define PCM_WRITE_U32_NE(b8) _PCM_WRITE_U32_NE(b8)
379#else /* !SND_PCM_64 */
380/*
381 * 24bit integer ?!? This is quite unfortunate, eh? Get the fact straight:
382 * Dynamic range for:
383 * 1) Human =~ 140db
384 * 2) 16bit = 96db (close enough)
385 * 3) 24bit = 144db (perfect)
386 * 4) 32bit = 196db (way too much)
387 * 5) Bugs Bunny = Gazillion!@%$Erbzzztt-EINVAL db
388 * Since we're not Bugs Bunny ..uh..err.. avoiding 64bit arithmetic, 24bit
389 * is pretty much sufficient for our signed integer processing.
390 */
391#define PCM_READ_S32_LE(b8) (_PCM_READ_S32_LE(b8) >> PCM_FXSHIFT)
392#define PCM_READ_S32_BE(b8) (_PCM_READ_S32_BE(b8) >> PCM_FXSHIFT)
393#define PCM_READ_U32_LE(b8) (_PCM_READ_U32_LE(b8) >> PCM_FXSHIFT)
394#define PCM_READ_U32_BE(b8) (_PCM_READ_U32_BE(b8) >> PCM_FXSHIFT)
395
396#define PCM_READ_S32_NE(b8) (_PCM_READ_S32_NE(b8) >> PCM_FXSHIFT)
397#define PCM_READ_U32_NE(b8) (_PCM_READ_U32_NE(b8) >> PCM_FXSHIFT)
398
399#define PCM_WRITE_S32_LE(b8, val) \
400 _PCM_WRITE_S32_LE(b8, (val) << PCM_FXSHIFT)
401#define PCM_WRITE_S32_BE(b8, val) \
402 _PCM_WRITE_S32_BE(b8, (val) << PCM_FXSHIFT)
403#define PCM_WRITE_U32_LE(b8, val) \
404 _PCM_WRITE_U32_LE(b8, (val) << PCM_FXSHIFT)
405#define PCM_WRITE_U32_BE(b8, val) \
406 _PCM_WRITE_U32_BE(b8, (val) << PCM_FXSHIFT)
407
408#define PCM_WRITE_S32_NE(b8, val) \
409 _PCM_WRITE_S32_NE(b8, (val) << PCM_FXSHIFT)
410#define PCM_WRITE_U32_NE(b8, val) \
411 _PCM_WRITE_U32_NE(b8, (val) << PCM_FXSHIFT)
412#endif /* SND_PCM_64 */
413
414#define PCM_CLAMP_S8(val) \
415 (((val) > PCM_S8_MAX) ? PCM_S8_MAX : \
416 (((val) < PCM_S8_MIN) ? PCM_S8_MIN : (val)))
417#define PCM_CLAMP_S16(val) \
418 (((val) > PCM_S16_MAX) ? PCM_S16_MAX : \
419 (((val) < PCM_S16_MIN) ? PCM_S16_MIN : (val)))
420#define PCM_CLAMP_S24(val) \
421 (((val) > PCM_S24_MAX) ? PCM_S24_MAX : \
422 (((val) < PCM_S24_MIN) ? PCM_S24_MIN : (val)))
423
424#ifdef SND_PCM_64
425#define PCM_CLAMP_S32(val) \
426 (((val) > PCM_S32_MAX) ? PCM_S32_MAX : \
427 (((val) < PCM_S32_MIN) ? PCM_S32_MIN : (val)))
428#else /* !SND_PCM_64 */
429#define PCM_CLAMP_S32(val) \
430 (((val) > PCM_S24_MAX) ? PCM_S32_MAX : \
431 (((val) < PCM_S24_MIN) ? PCM_S32_MIN : \
432 ((val) << PCM_FXSHIFT)))
433#endif /* SND_PCM_64 */
434
435#define PCM_CLAMP_U8(val) PCM_CLAMP_S8(val)
436#define PCM_CLAMP_U16(val) PCM_CLAMP_S16(val)
437#define PCM_CLAMP_U24(val) PCM_CLAMP_S24(val)
438#define PCM_CLAMP_U32(val) PCM_CLAMP_S32(val)
439
440#endif /* !_SND_PCM_H_ */
uint32_t uintpcm32_t
Definition: pcm.h:71
uint32_t uintpcm16_t
Definition: pcm.h:63
uint64_t uintpcm64_t
Definition: pcm.h:75
int32_t intpcm16_t
Definition: pcm.h:57
int32_t intpcm24_t
Definition: pcm.h:58
int32_t intpcm_t
Definition: pcm.h:54
int32_t intpcm32_t
Definition: pcm.h:70
uint32_t uintpcm_t
Definition: pcm.h:60
int32_t intpcm8_t
Definition: pcm.h:56
int64_t intpcm64_t
Definition: pcm.h:74
uint32_t uintpcm8_t
Definition: pcm.h:62
uint32_t uintpcm24_t
Definition: pcm.h:64