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pcm.h
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1
12/*
13 * This library is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU Lesser General Public License as
15 * published by the Free Software Foundation; either version 2.1 of
16 * the License, or (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU Lesser General Public License for more details.
22 *
23 * You should have received a copy of the GNU Lesser General Public
24 * License along with this library; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 *
27 */
28
29#ifndef __ALSA_PCM_H
30#define __ALSA_PCM_H
31
32#ifdef __cplusplus
33 extern "C" {
34#endif
35
36#include <stdint.h>
37
45#define SND_PCM_DLSYM_VERSION _dlsym_pcm_001
46
48 typedef struct _snd_pcm_info snd_pcm_info_t;
49
64 typedef struct _snd_pcm_hw_params snd_pcm_hw_params_t;
65
67 typedef struct _snd_pcm_sw_params snd_pcm_sw_params_t;
69 typedef struct _snd_pcm_status snd_pcm_status_t;
71 typedef struct _snd_pcm_access_mask snd_pcm_access_mask_t;
73 typedef struct _snd_pcm_format_mask snd_pcm_format_mask_t;
75 typedef struct _snd_pcm_subformat_mask snd_pcm_subformat_mask_t;
76
78 typedef enum _snd_pcm_class {
81 SND_PCM_CLASS_GENERIC = 0,
83 SND_PCM_CLASS_MULTI,
85 SND_PCM_CLASS_MODEM,
87 SND_PCM_CLASS_DIGITIZER,
88 SND_PCM_CLASS_LAST = SND_PCM_CLASS_DIGITIZER
89} snd_pcm_class_t;
90
92 typedef enum _snd_pcm_subclass {
94 SND_PCM_SUBCLASS_GENERIC_MIX = 0,
96 SND_PCM_SUBCLASS_MULTI_MIX,
97 SND_PCM_SUBCLASS_LAST = SND_PCM_SUBCLASS_MULTI_MIX
98} snd_pcm_subclass_t;
99
101 typedef enum _snd_pcm_stream {
103 SND_PCM_STREAM_PLAYBACK = 0,
105 SND_PCM_STREAM_CAPTURE,
106 SND_PCM_STREAM_LAST = SND_PCM_STREAM_CAPTURE
107} snd_pcm_stream_t;
108
110 typedef enum _snd_pcm_access {
112 SND_PCM_ACCESS_MMAP_INTERLEAVED = 0,
114 SND_PCM_ACCESS_MMAP_NONINTERLEAVED,
116 SND_PCM_ACCESS_MMAP_COMPLEX,
118 SND_PCM_ACCESS_RW_INTERLEAVED,
120 SND_PCM_ACCESS_RW_NONINTERLEAVED,
121 SND_PCM_ACCESS_LAST = SND_PCM_ACCESS_RW_NONINTERLEAVED
122} snd_pcm_access_t;
123
125 typedef enum _snd_pcm_format {
127 SND_PCM_FORMAT_UNKNOWN = -1,
129 SND_PCM_FORMAT_S8 = 0,
131 SND_PCM_FORMAT_U8,
133 SND_PCM_FORMAT_S16_LE,
135 SND_PCM_FORMAT_S16_BE,
137 SND_PCM_FORMAT_U16_LE,
139 SND_PCM_FORMAT_U16_BE,
141 SND_PCM_FORMAT_S24_LE,
143 SND_PCM_FORMAT_S24_BE,
145 SND_PCM_FORMAT_U24_LE,
147 SND_PCM_FORMAT_U24_BE,
149 SND_PCM_FORMAT_S32_LE,
151 SND_PCM_FORMAT_S32_BE,
153 SND_PCM_FORMAT_U32_LE,
155 SND_PCM_FORMAT_U32_BE,
157 SND_PCM_FORMAT_FLOAT_LE,
159 SND_PCM_FORMAT_FLOAT_BE,
161 SND_PCM_FORMAT_FLOAT64_LE,
163 SND_PCM_FORMAT_FLOAT64_BE,
165 SND_PCM_FORMAT_IEC958_SUBFRAME_LE,
167 SND_PCM_FORMAT_IEC958_SUBFRAME_BE,
169 SND_PCM_FORMAT_MU_LAW,
171 SND_PCM_FORMAT_A_LAW,
173 SND_PCM_FORMAT_IMA_ADPCM,
175 SND_PCM_FORMAT_MPEG,
177 SND_PCM_FORMAT_GSM,
179 SND_PCM_FORMAT_S20_LE,
181 SND_PCM_FORMAT_S20_BE,
183 SND_PCM_FORMAT_U20_LE,
185 SND_PCM_FORMAT_U20_BE,
187 SND_PCM_FORMAT_SPECIAL = 31,
189 SND_PCM_FORMAT_S24_3LE = 32,
191 SND_PCM_FORMAT_S24_3BE,
193 SND_PCM_FORMAT_U24_3LE,
195 SND_PCM_FORMAT_U24_3BE,
197 SND_PCM_FORMAT_S20_3LE,
199 SND_PCM_FORMAT_S20_3BE,
201 SND_PCM_FORMAT_U20_3LE,
203 SND_PCM_FORMAT_U20_3BE,
205 SND_PCM_FORMAT_S18_3LE,
207 SND_PCM_FORMAT_S18_3BE,
209 SND_PCM_FORMAT_U18_3LE,
211 SND_PCM_FORMAT_U18_3BE,
212 /* G.723 (ADPCM) 24 kbit/s, 8 samples in 3 bytes */
213 SND_PCM_FORMAT_G723_24,
214 /* G.723 (ADPCM) 24 kbit/s, 1 sample in 1 byte */
215 SND_PCM_FORMAT_G723_24_1B,
216 /* G.723 (ADPCM) 40 kbit/s, 8 samples in 3 bytes */
217 SND_PCM_FORMAT_G723_40,
218 /* G.723 (ADPCM) 40 kbit/s, 1 sample in 1 byte */
219 SND_PCM_FORMAT_G723_40_1B,
220 /* Direct Stream Digital (DSD) in 1-byte samples (x8) */
221 SND_PCM_FORMAT_DSD_U8,
222 /* Direct Stream Digital (DSD) in 2-byte samples (x16) */
223 SND_PCM_FORMAT_DSD_U16_LE,
224 /* Direct Stream Digital (DSD) in 4-byte samples (x32) */
225 SND_PCM_FORMAT_DSD_U32_LE,
226 /* Direct Stream Digital (DSD) in 2-byte samples (x16) */
227 SND_PCM_FORMAT_DSD_U16_BE,
228 /* Direct Stream Digital (DSD) in 4-byte samples (x32) */
229 SND_PCM_FORMAT_DSD_U32_BE,
230 SND_PCM_FORMAT_LAST = SND_PCM_FORMAT_DSD_U32_BE,
231
232#if __BYTE_ORDER == __LITTLE_ENDIAN
234 SND_PCM_FORMAT_S16 = SND_PCM_FORMAT_S16_LE,
236 SND_PCM_FORMAT_U16 = SND_PCM_FORMAT_U16_LE,
238 SND_PCM_FORMAT_S24 = SND_PCM_FORMAT_S24_LE,
240 SND_PCM_FORMAT_U24 = SND_PCM_FORMAT_U24_LE,
242 SND_PCM_FORMAT_S32 = SND_PCM_FORMAT_S32_LE,
244 SND_PCM_FORMAT_U32 = SND_PCM_FORMAT_U32_LE,
246 SND_PCM_FORMAT_FLOAT = SND_PCM_FORMAT_FLOAT_LE,
248 SND_PCM_FORMAT_FLOAT64 = SND_PCM_FORMAT_FLOAT64_LE,
250 SND_PCM_FORMAT_IEC958_SUBFRAME = SND_PCM_FORMAT_IEC958_SUBFRAME_LE,
252 SND_PCM_FORMAT_S20 = SND_PCM_FORMAT_S20_LE,
254 SND_PCM_FORMAT_U20 = SND_PCM_FORMAT_U20_LE,
255#elif __BYTE_ORDER == __BIG_ENDIAN
257 SND_PCM_FORMAT_S16 = SND_PCM_FORMAT_S16_BE,
259 SND_PCM_FORMAT_U16 = SND_PCM_FORMAT_U16_BE,
261 SND_PCM_FORMAT_S24 = SND_PCM_FORMAT_S24_BE,
263 SND_PCM_FORMAT_U24 = SND_PCM_FORMAT_U24_BE,
265 SND_PCM_FORMAT_S32 = SND_PCM_FORMAT_S32_BE,
267 SND_PCM_FORMAT_U32 = SND_PCM_FORMAT_U32_BE,
269 SND_PCM_FORMAT_FLOAT = SND_PCM_FORMAT_FLOAT_BE,
271 SND_PCM_FORMAT_FLOAT64 = SND_PCM_FORMAT_FLOAT64_BE,
273 SND_PCM_FORMAT_IEC958_SUBFRAME = SND_PCM_FORMAT_IEC958_SUBFRAME_BE,
275 SND_PCM_FORMAT_S20 = SND_PCM_FORMAT_S20_BE,
277 SND_PCM_FORMAT_U20 = SND_PCM_FORMAT_U20_BE,
278#else
279#error "Unknown endian"
280#endif
281} snd_pcm_format_t;
282
284 typedef enum _snd_pcm_subformat {
286 SND_PCM_SUBFORMAT_STD = 0,
287 SND_PCM_SUBFORMAT_LAST = SND_PCM_SUBFORMAT_STD
288} snd_pcm_subformat_t;
289
291 typedef enum _snd_pcm_state {
293 SND_PCM_STATE_OPEN = 0,
295 SND_PCM_STATE_SETUP,
297 SND_PCM_STATE_PREPARED,
299 SND_PCM_STATE_RUNNING,
301 SND_PCM_STATE_XRUN,
303 SND_PCM_STATE_DRAINING,
305 SND_PCM_STATE_PAUSED,
307 SND_PCM_STATE_SUSPENDED,
309 SND_PCM_STATE_DISCONNECTED,
310 SND_PCM_STATE_LAST = SND_PCM_STATE_DISCONNECTED,
312 SND_PCM_STATE_PRIVATE1 = 1024
313} snd_pcm_state_t;
314
316 typedef enum _snd_pcm_start {
318 SND_PCM_START_DATA = 0,
320 SND_PCM_START_EXPLICIT,
321 SND_PCM_START_LAST = SND_PCM_START_EXPLICIT
322} snd_pcm_start_t;
323
325 typedef enum _snd_pcm_xrun {
327 SND_PCM_XRUN_NONE = 0,
329 SND_PCM_XRUN_STOP,
330 SND_PCM_XRUN_LAST = SND_PCM_XRUN_STOP
331} snd_pcm_xrun_t;
332
334 typedef enum _snd_pcm_tstamp {
336 SND_PCM_TSTAMP_NONE = 0,
338 SND_PCM_TSTAMP_ENABLE,
342 SND_PCM_TSTAMP_MMAP = SND_PCM_TSTAMP_ENABLE,
343 SND_PCM_TSTAMP_LAST = SND_PCM_TSTAMP_ENABLE
344} snd_pcm_tstamp_t;
345
346 typedef enum _snd_pcm_tstamp_type {
347 SND_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0,
348 SND_PCM_TSTAMP_TYPE_MONOTONIC,
349 SND_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
350 SND_PCM_TSTAMP_TYPE_LAST = SND_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
351} snd_pcm_tstamp_type_t;
352
353 typedef enum _snd_pcm_audio_tstamp_type {
358 SND_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
359 SND_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,
360 SND_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,
361 SND_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,
362 SND_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,
363 SND_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5,
364 SND_PCM_AUDIO_TSTAMP_TYPE_LAST = SND_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
365} snd_pcm_audio_tstamp_type_t;
366
367 typedef struct _snd_pcm_audio_tstamp_config {
368 /* 5 of max 16 bits used */
369 unsigned int type_requested:4;
370 unsigned int report_delay:1; /* add total delay to A/D or D/A */
371} snd_pcm_audio_tstamp_config_t;
372
373 typedef struct _snd_pcm_audio_tstamp_report {
374 /* 6 of max 16 bits used for bit-fields */
375
376 /* for backwards compatibility */
377 unsigned int valid:1;
378
379 /* actual type if hardware could not support requested timestamp */
380 unsigned int actual_type:4;
381
382 /* accuracy represented in ns units */
383 unsigned int accuracy_report:1; /* 0 if accuracy unknown, 1 if accuracy field is valid */
384 unsigned int accuracy; /* up to 4.29s, will be packed in separate field */
385} snd_pcm_audio_tstamp_report_t;
386
388 typedef unsigned long snd_pcm_uframes_t;
390 typedef long snd_pcm_sframes_t;
391
393#define SND_PCM_NONBLOCK 0x00000001
395#define SND_PCM_ASYNC 0x00000002
397#define SND_PCM_ABORT 0x00008000
399#define SND_PCM_NO_AUTO_RESAMPLE 0x00010000
401#define SND_PCM_NO_AUTO_CHANNELS 0x00020000
403#define SND_PCM_NO_AUTO_FORMAT 0x00040000
405#define SND_PCM_NO_SOFTVOL 0x00080000
406
408 typedef struct _snd_pcm snd_pcm_t;
409
411 enum _snd_pcm_type {
413 SND_PCM_TYPE_HW = 0,
415 SND_PCM_TYPE_HOOKS,
418 SND_PCM_TYPE_MULTI,
420 SND_PCM_TYPE_FILE,
422 SND_PCM_TYPE_NULL,
424 SND_PCM_TYPE_SHM,
426 SND_PCM_TYPE_INET,
428 SND_PCM_TYPE_COPY,
430 SND_PCM_TYPE_LINEAR,
432 SND_PCM_TYPE_ALAW,
434 SND_PCM_TYPE_MULAW,
436 SND_PCM_TYPE_ADPCM,
438 SND_PCM_TYPE_RATE,
440 SND_PCM_TYPE_ROUTE,
442 SND_PCM_TYPE_PLUG,
444 SND_PCM_TYPE_SHARE,
446 SND_PCM_TYPE_METER,
448 SND_PCM_TYPE_MIX,
450 SND_PCM_TYPE_DROUTE,
452 SND_PCM_TYPE_LBSERVER,
454 SND_PCM_TYPE_LINEAR_FLOAT,
456 SND_PCM_TYPE_LADSPA,
458 SND_PCM_TYPE_DMIX,
460 SND_PCM_TYPE_JACK,
462 SND_PCM_TYPE_DSNOOP,
464 SND_PCM_TYPE_DSHARE,
466 SND_PCM_TYPE_IEC958,
468 SND_PCM_TYPE_SOFTVOL,
470 SND_PCM_TYPE_IOPLUG,
472 SND_PCM_TYPE_EXTPLUG,
474 SND_PCM_TYPE_MMAP_EMUL,
475 SND_PCM_TYPE_LAST = SND_PCM_TYPE_MMAP_EMUL
476};
477
479 typedef enum _snd_pcm_type snd_pcm_type_t;
480
482 typedef struct _snd_pcm_channel_area {
484 void *addr;
486 unsigned int first;
488 unsigned int step;
489} snd_pcm_channel_area_t;
490
492 typedef union _snd_pcm_sync_id {
494 unsigned char id[16];
496 unsigned short id16[8];
498 unsigned int id32[4];
499} snd_pcm_sync_id_t;
500
502 typedef struct _snd_pcm_scope snd_pcm_scope_t;
503
504 int snd_pcm_open(snd_pcm_t **pcm, const char *name,
505 snd_pcm_stream_t stream, int mode);
506 int snd_pcm_open_lconf(snd_pcm_t **pcm, const char *name,
507 snd_pcm_stream_t stream, int mode,
508 snd_config_t *lconf);
509 int snd_pcm_open_fallback(snd_pcm_t **pcm, snd_config_t *root,
510 const char *name, const char *orig_name,
511 snd_pcm_stream_t stream, int mode);
512
513 int snd_pcm_close(snd_pcm_t *pcm);
514 const char *snd_pcm_name(snd_pcm_t *pcm);
515 snd_pcm_type_t snd_pcm_type(snd_pcm_t *pcm);
516 snd_pcm_stream_t snd_pcm_stream(snd_pcm_t *pcm);
517 int snd_pcm_poll_descriptors_count(snd_pcm_t *pcm);
518 int snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space);
519 int snd_pcm_poll_descriptors_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents);
520 int snd_pcm_nonblock(snd_pcm_t *pcm, int nonblock);
521 static __inline__ int snd_pcm_abort(snd_pcm_t *pcm) { return snd_pcm_nonblock(pcm, 2); }
522 int snd_async_add_pcm_handler(snd_async_handler_t **handler, snd_pcm_t *pcm,
523 snd_async_callback_t callback, void *private_data);
524 snd_pcm_t *snd_async_handler_get_pcm(snd_async_handler_t *handler);
525 int snd_pcm_info(snd_pcm_t *pcm, snd_pcm_info_t *info);
526 int snd_pcm_hw_params_current(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
527 int snd_pcm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
528 int snd_pcm_hw_free(snd_pcm_t *pcm);
529 int snd_pcm_sw_params_current(snd_pcm_t *pcm, snd_pcm_sw_params_t *params);
530 int snd_pcm_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t *params);
531 int snd_pcm_prepare(snd_pcm_t *pcm);
532 int snd_pcm_reset(snd_pcm_t *pcm);
533 int snd_pcm_status(snd_pcm_t *pcm, snd_pcm_status_t *status);
534 int snd_pcm_start(snd_pcm_t *pcm);
535 int snd_pcm_drop(snd_pcm_t *pcm);
536 int snd_pcm_drain(snd_pcm_t *pcm);
537 int snd_pcm_pause(snd_pcm_t *pcm, int enable);
538 snd_pcm_state_t snd_pcm_state(snd_pcm_t *pcm);
539 int snd_pcm_hwsync(snd_pcm_t *pcm);
540 int snd_pcm_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp);
541 int snd_pcm_resume(snd_pcm_t *pcm);
542 int snd_pcm_htimestamp(snd_pcm_t *pcm, snd_pcm_uframes_t *avail, snd_htimestamp_t *tstamp);
543 snd_pcm_sframes_t snd_pcm_avail(snd_pcm_t *pcm);
544 snd_pcm_sframes_t snd_pcm_avail_update(snd_pcm_t *pcm);
545 int snd_pcm_avail_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *availp, snd_pcm_sframes_t *delayp);
546 snd_pcm_sframes_t snd_pcm_rewindable(snd_pcm_t *pcm);
547 snd_pcm_sframes_t snd_pcm_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
548 snd_pcm_sframes_t snd_pcm_forwardable(snd_pcm_t *pcm);
549 snd_pcm_sframes_t snd_pcm_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
550 snd_pcm_sframes_t snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
551 snd_pcm_sframes_t snd_pcm_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size);
552 snd_pcm_sframes_t snd_pcm_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
553 snd_pcm_sframes_t snd_pcm_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
554 int snd_pcm_wait(snd_pcm_t *pcm, int timeout);
555
556 int snd_pcm_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2);
557 int snd_pcm_unlink(snd_pcm_t *pcm);
558
560#define SND_CHMAP_API_VERSION ((1 << 16) | (0 << 8) | 1)
561
563 enum snd_pcm_chmap_type {
564 SND_CHMAP_TYPE_NONE = 0,
565 SND_CHMAP_TYPE_FIXED,
566 SND_CHMAP_TYPE_VAR,
567 SND_CHMAP_TYPE_PAIRED,
568 SND_CHMAP_TYPE_LAST = SND_CHMAP_TYPE_PAIRED,
569};
570
572 enum snd_pcm_chmap_position {
573 SND_CHMAP_UNKNOWN = 0,
574 SND_CHMAP_NA,
575 SND_CHMAP_MONO,
576 SND_CHMAP_FL,
577 SND_CHMAP_FR,
578 SND_CHMAP_RL,
579 SND_CHMAP_RR,
580 SND_CHMAP_FC,
581 SND_CHMAP_LFE,
582 SND_CHMAP_SL,
583 SND_CHMAP_SR,
584 SND_CHMAP_RC,
585 SND_CHMAP_FLC,
586 SND_CHMAP_FRC,
587 SND_CHMAP_RLC,
588 SND_CHMAP_RRC,
589 SND_CHMAP_FLW,
590 SND_CHMAP_FRW,
591 SND_CHMAP_FLH,
592 SND_CHMAP_FCH,
593 SND_CHMAP_FRH,
594 SND_CHMAP_TC,
595 SND_CHMAP_TFL,
596 SND_CHMAP_TFR,
597 SND_CHMAP_TFC,
598 SND_CHMAP_TRL,
599 SND_CHMAP_TRR,
600 SND_CHMAP_TRC,
601 SND_CHMAP_TFLC,
602 SND_CHMAP_TFRC,
603 SND_CHMAP_TSL,
604 SND_CHMAP_TSR,
605 SND_CHMAP_LLFE,
606 SND_CHMAP_RLFE,
607 SND_CHMAP_BC,
608 SND_CHMAP_BLC,
609 SND_CHMAP_BRC,
610 SND_CHMAP_LAST = SND_CHMAP_BRC,
611};
612
614#define SND_CHMAP_POSITION_MASK 0xffff
615
617#define SND_CHMAP_PHASE_INVERSE (0x01 << 16)
619#define SND_CHMAP_DRIVER_SPEC (0x02 << 16)
620
622 typedef struct snd_pcm_chmap {
623 unsigned int channels;
624 unsigned int pos[0];
625} snd_pcm_chmap_t;
626
628 typedef struct snd_pcm_chmap_query {
629 enum snd_pcm_chmap_type type;
630 snd_pcm_chmap_t map;
631} snd_pcm_chmap_query_t;
632
633
634 snd_pcm_chmap_query_t **snd_pcm_query_chmaps(snd_pcm_t *pcm);
635 snd_pcm_chmap_query_t **snd_pcm_query_chmaps_from_hw(int card, int dev,
636 int subdev,
637 snd_pcm_stream_t stream);
638 void snd_pcm_free_chmaps(snd_pcm_chmap_query_t **maps);
639 snd_pcm_chmap_t *snd_pcm_get_chmap(snd_pcm_t *pcm);
640 int snd_pcm_set_chmap(snd_pcm_t *pcm, const snd_pcm_chmap_t *map);
641
642 const char *snd_pcm_chmap_type_name(enum snd_pcm_chmap_type val);
643 const char *snd_pcm_chmap_name(enum snd_pcm_chmap_position val);
644 const char *snd_pcm_chmap_long_name(enum snd_pcm_chmap_position val);
645 int snd_pcm_chmap_print(const snd_pcm_chmap_t *map, size_t maxlen, char *buf);
646 unsigned int snd_pcm_chmap_from_string(const char *str);
647 snd_pcm_chmap_t *snd_pcm_chmap_parse_string(const char *str);
648
649//int snd_pcm_mixer_element(snd_pcm_t *pcm, snd_mixer_t *mixer, snd_mixer_elem_t **elem);
650
651/*
652 * application helpers - these functions are implemented on top
653 * of the basic API
654 */
655
656 int snd_pcm_recover(snd_pcm_t *pcm, int err, int silent);
657 int snd_pcm_set_params(snd_pcm_t *pcm,
658 snd_pcm_format_t format,
659 snd_pcm_access_t access,
660 unsigned int channels,
661 unsigned int rate,
662 int soft_resample,
663 unsigned int latency);
664 int snd_pcm_get_params(snd_pcm_t *pcm,
665 snd_pcm_uframes_t *buffer_size,
666 snd_pcm_uframes_t *period_size);
667
677 size_t snd_pcm_info_sizeof(void);
682#define snd_pcm_info_alloca(ptr) __snd_alloca(ptr, snd_pcm_info)
683 int snd_pcm_info_malloc(snd_pcm_info_t **ptr);
684 void snd_pcm_info_free(snd_pcm_info_t *obj);
685 void snd_pcm_info_copy(snd_pcm_info_t *dst, const snd_pcm_info_t *src);
686 unsigned int snd_pcm_info_get_device(const snd_pcm_info_t *obj);
687 unsigned int snd_pcm_info_get_subdevice(const snd_pcm_info_t *obj);
688 snd_pcm_stream_t snd_pcm_info_get_stream(const snd_pcm_info_t *obj);
689 int snd_pcm_info_get_card(const snd_pcm_info_t *obj);
690 const char *snd_pcm_info_get_id(const snd_pcm_info_t *obj);
691 const char *snd_pcm_info_get_name(const snd_pcm_info_t *obj);
692 const char *snd_pcm_info_get_subdevice_name(const snd_pcm_info_t *obj);
693 snd_pcm_class_t snd_pcm_info_get_class(const snd_pcm_info_t *obj);
694 snd_pcm_subclass_t snd_pcm_info_get_subclass(const snd_pcm_info_t *obj);
695 unsigned int snd_pcm_info_get_subdevices_count(const snd_pcm_info_t *obj);
696 unsigned int snd_pcm_info_get_subdevices_avail(const snd_pcm_info_t *obj);
697 snd_pcm_sync_id_t snd_pcm_info_get_sync(const snd_pcm_info_t *obj);
698 void snd_pcm_info_set_device(snd_pcm_info_t *obj, unsigned int val);
699 void snd_pcm_info_set_subdevice(snd_pcm_info_t *obj, unsigned int val);
700 void snd_pcm_info_set_stream(snd_pcm_info_t *obj, snd_pcm_stream_t val);
701
711 int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
712
713 int snd_pcm_hw_params_can_mmap_sample_resolution(const snd_pcm_hw_params_t *params);
714 int snd_pcm_hw_params_is_double(const snd_pcm_hw_params_t *params);
715 int snd_pcm_hw_params_is_batch(const snd_pcm_hw_params_t *params);
716 int snd_pcm_hw_params_is_block_transfer(const snd_pcm_hw_params_t *params);
717 int snd_pcm_hw_params_is_monotonic(const snd_pcm_hw_params_t *params);
718 int snd_pcm_hw_params_can_overrange(const snd_pcm_hw_params_t *params);
719 int snd_pcm_hw_params_can_pause(const snd_pcm_hw_params_t *params);
720 int snd_pcm_hw_params_can_resume(const snd_pcm_hw_params_t *params);
721 int snd_pcm_hw_params_is_half_duplex(const snd_pcm_hw_params_t *params);
722 int snd_pcm_hw_params_is_joint_duplex(const snd_pcm_hw_params_t *params);
723 int snd_pcm_hw_params_can_sync_start(const snd_pcm_hw_params_t *params);
724 int snd_pcm_hw_params_can_disable_period_wakeup(const snd_pcm_hw_params_t *params);
725 int snd_pcm_hw_params_supports_audio_wallclock_ts(const snd_pcm_hw_params_t *params); /* deprecated, use audio_ts_type */
726 int snd_pcm_hw_params_supports_audio_ts_type(const snd_pcm_hw_params_t *params, int type);
727 int snd_pcm_hw_params_get_rate_numden(const snd_pcm_hw_params_t *params,
728 unsigned int *rate_num,
729 unsigned int *rate_den);
730 int snd_pcm_hw_params_get_sbits(const snd_pcm_hw_params_t *params);
731 int snd_pcm_hw_params_get_fifo_size(const snd_pcm_hw_params_t *params);
732
733#if 0
734 typedef struct _snd_pcm_hw_strategy snd_pcm_hw_strategy_t;
735
736/* choices need to be sorted on ascending badness */
737 typedef struct _snd_pcm_hw_strategy_simple_choices_list {
738 unsigned int value;
739 unsigned int badness;
740} snd_pcm_hw_strategy_simple_choices_list_t;
741
742 int snd_pcm_hw_params_strategy(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
743 const snd_pcm_hw_strategy_t *strategy,
744 unsigned int badness_min,
745 unsigned int badness_max);
746
747 void snd_pcm_hw_strategy_free(snd_pcm_hw_strategy_t *strategy);
748 int snd_pcm_hw_strategy_simple(snd_pcm_hw_strategy_t **strategyp,
749 unsigned int badness_min,
750 unsigned int badness_max);
751 int snd_pcm_hw_params_try_explain_failure(snd_pcm_t *pcm,
752 snd_pcm_hw_params_t *fail,
753 snd_pcm_hw_params_t *success,
754 unsigned int depth,
755 snd_output_t *out);
756
757#endif
758
759 size_t snd_pcm_hw_params_sizeof(void);
764#define snd_pcm_hw_params_alloca(ptr) __snd_alloca(ptr, snd_pcm_hw_params)
765 int snd_pcm_hw_params_malloc(snd_pcm_hw_params_t **ptr);
766 void snd_pcm_hw_params_free(snd_pcm_hw_params_t *obj);
767 void snd_pcm_hw_params_copy(snd_pcm_hw_params_t *dst, const snd_pcm_hw_params_t *src);
768
769#if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_HW_PARAMS_API)
770
771 int snd_pcm_hw_params_get_access(const snd_pcm_hw_params_t *params, snd_pcm_access_t *_access);
772 int snd_pcm_hw_params_test_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access);
773 int snd_pcm_hw_params_set_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access);
774 int snd_pcm_hw_params_set_access_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access);
775 int snd_pcm_hw_params_set_access_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access);
776 int snd_pcm_hw_params_set_access_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask);
777 int snd_pcm_hw_params_get_access_mask(snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask);
778
779 int snd_pcm_hw_params_get_format(const snd_pcm_hw_params_t *params, snd_pcm_format_t *val);
780 int snd_pcm_hw_params_test_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
781 int snd_pcm_hw_params_set_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
782 int snd_pcm_hw_params_set_format_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format);
783 int snd_pcm_hw_params_set_format_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format);
784 int snd_pcm_hw_params_set_format_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask);
785 void snd_pcm_hw_params_get_format_mask(snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask);
786
787 int snd_pcm_hw_params_get_subformat(const snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat);
788 int snd_pcm_hw_params_test_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat);
789 int snd_pcm_hw_params_set_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat);
790 int snd_pcm_hw_params_set_subformat_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat);
791 int snd_pcm_hw_params_set_subformat_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat);
792 int snd_pcm_hw_params_set_subformat_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask);
793 void snd_pcm_hw_params_get_subformat_mask(snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask);
794
795 int snd_pcm_hw_params_get_channels(const snd_pcm_hw_params_t *params, unsigned int *val);
796 int snd_pcm_hw_params_get_channels_min(const snd_pcm_hw_params_t *params, unsigned int *val);
797 int snd_pcm_hw_params_get_channels_max(const snd_pcm_hw_params_t *params, unsigned int *val);
798 int snd_pcm_hw_params_test_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
799 int snd_pcm_hw_params_set_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
800 int snd_pcm_hw_params_set_channels_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
801 int snd_pcm_hw_params_set_channels_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
802 int snd_pcm_hw_params_set_channels_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, unsigned int *max);
803 int snd_pcm_hw_params_set_channels_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
804 int snd_pcm_hw_params_set_channels_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
805 int snd_pcm_hw_params_set_channels_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
806
807 int snd_pcm_hw_params_get_rate(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
808 int snd_pcm_hw_params_get_rate_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
809 int snd_pcm_hw_params_get_rate_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
810 int snd_pcm_hw_params_test_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
811 int snd_pcm_hw_params_set_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
812 int snd_pcm_hw_params_set_rate_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
813 int snd_pcm_hw_params_set_rate_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
814 int snd_pcm_hw_params_set_rate_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir);
815 int snd_pcm_hw_params_set_rate_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
816 int snd_pcm_hw_params_set_rate_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
817 int snd_pcm_hw_params_set_rate_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
818 int snd_pcm_hw_params_set_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
819 int snd_pcm_hw_params_get_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
820 int snd_pcm_hw_params_set_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
821 int snd_pcm_hw_params_get_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
822 int snd_pcm_hw_params_set_period_wakeup(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
823 int snd_pcm_hw_params_get_period_wakeup(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
824
825 int snd_pcm_hw_params_get_period_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
826 int snd_pcm_hw_params_get_period_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
827 int snd_pcm_hw_params_get_period_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
828 int snd_pcm_hw_params_test_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
829 int snd_pcm_hw_params_set_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
830 int snd_pcm_hw_params_set_period_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
831 int snd_pcm_hw_params_set_period_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
832 int snd_pcm_hw_params_set_period_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir);
833 int snd_pcm_hw_params_set_period_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
834 int snd_pcm_hw_params_set_period_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
835 int snd_pcm_hw_params_set_period_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
836
837 int snd_pcm_hw_params_get_period_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir);
838 int snd_pcm_hw_params_get_period_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir);
839 int snd_pcm_hw_params_get_period_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir);
840 int snd_pcm_hw_params_test_period_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val, int dir);
841 int snd_pcm_hw_params_set_period_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val, int dir);
842 int snd_pcm_hw_params_set_period_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
843 int snd_pcm_hw_params_set_period_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
844 int snd_pcm_hw_params_set_period_size_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *min, int *mindir, snd_pcm_uframes_t *max, int *maxdir);
845 int snd_pcm_hw_params_set_period_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
846 int snd_pcm_hw_params_set_period_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
847 int snd_pcm_hw_params_set_period_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
848 int snd_pcm_hw_params_set_period_size_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
849
850 int snd_pcm_hw_params_get_periods(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
851 int snd_pcm_hw_params_get_periods_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
852 int snd_pcm_hw_params_get_periods_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
853 int snd_pcm_hw_params_test_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
854 int snd_pcm_hw_params_set_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
855 int snd_pcm_hw_params_set_periods_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
856 int snd_pcm_hw_params_set_periods_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
857 int snd_pcm_hw_params_set_periods_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir);
858 int snd_pcm_hw_params_set_periods_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
859 int snd_pcm_hw_params_set_periods_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
860 int snd_pcm_hw_params_set_periods_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
861 int snd_pcm_hw_params_set_periods_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
862
863 int snd_pcm_hw_params_get_buffer_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
864 int snd_pcm_hw_params_get_buffer_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
865 int snd_pcm_hw_params_get_buffer_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
866 int snd_pcm_hw_params_test_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
867 int snd_pcm_hw_params_set_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
868 int snd_pcm_hw_params_set_buffer_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
869 int snd_pcm_hw_params_set_buffer_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
870 int snd_pcm_hw_params_set_buffer_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir);
871 int snd_pcm_hw_params_set_buffer_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
872 int snd_pcm_hw_params_set_buffer_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
873 int snd_pcm_hw_params_set_buffer_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
874
875 int snd_pcm_hw_params_get_buffer_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
876 int snd_pcm_hw_params_get_buffer_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
877 int snd_pcm_hw_params_get_buffer_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
878 int snd_pcm_hw_params_test_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
879 int snd_pcm_hw_params_set_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
880 int snd_pcm_hw_params_set_buffer_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
881 int snd_pcm_hw_params_set_buffer_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
882 int snd_pcm_hw_params_set_buffer_size_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *min, snd_pcm_uframes_t *max);
883 int snd_pcm_hw_params_set_buffer_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
884 int snd_pcm_hw_params_set_buffer_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
885 int snd_pcm_hw_params_set_buffer_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
886
887#endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_HW_PARAMS_API */
888
889 int snd_pcm_hw_params_get_min_align(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
890
900 size_t snd_pcm_sw_params_sizeof(void);
905#define snd_pcm_sw_params_alloca(ptr) __snd_alloca(ptr, snd_pcm_sw_params)
906 int snd_pcm_sw_params_malloc(snd_pcm_sw_params_t **ptr);
907 void snd_pcm_sw_params_free(snd_pcm_sw_params_t *obj);
908 void snd_pcm_sw_params_copy(snd_pcm_sw_params_t *dst, const snd_pcm_sw_params_t *src);
909 int snd_pcm_sw_params_get_boundary(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
910
911#if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_SW_PARAMS_API)
912
913 int snd_pcm_sw_params_set_tstamp_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_t val);
914 int snd_pcm_sw_params_get_tstamp_mode(const snd_pcm_sw_params_t *params, snd_pcm_tstamp_t *val);
915 int snd_pcm_sw_params_set_tstamp_type(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_type_t val);
916 int snd_pcm_sw_params_get_tstamp_type(const snd_pcm_sw_params_t *params, snd_pcm_tstamp_type_t *val);
917 int snd_pcm_sw_params_set_avail_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
918 int snd_pcm_sw_params_get_avail_min(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
919 int snd_pcm_sw_params_set_period_event(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, int val);
920 int snd_pcm_sw_params_get_period_event(const snd_pcm_sw_params_t *params, int *val);
921 int snd_pcm_sw_params_set_start_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
922 int snd_pcm_sw_params_get_start_threshold(const snd_pcm_sw_params_t *paramsm, snd_pcm_uframes_t *val);
923 int snd_pcm_sw_params_set_stop_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
924 int snd_pcm_sw_params_get_stop_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
925 int snd_pcm_sw_params_set_silence_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
926 int snd_pcm_sw_params_get_silence_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
927 int snd_pcm_sw_params_set_silence_size(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
928 int snd_pcm_sw_params_get_silence_size(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
929
930#endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_SW_PARAMS_API */
931
934/* include old API */
935#ifndef ALSA_LIBRARY_BUILD
936#if defined(ALSA_PCM_OLD_HW_PARAMS_API) || defined(ALSA_PCM_OLD_SW_PARAMS_API)
937#include "pcm_old.h"
938#endif
939#endif
940
948 size_t snd_pcm_access_mask_sizeof(void);
953#define snd_pcm_access_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_access_mask)
954 int snd_pcm_access_mask_malloc(snd_pcm_access_mask_t **ptr);
955 void snd_pcm_access_mask_free(snd_pcm_access_mask_t *obj);
956 void snd_pcm_access_mask_copy(snd_pcm_access_mask_t *dst, const snd_pcm_access_mask_t *src);
957 void snd_pcm_access_mask_none(snd_pcm_access_mask_t *mask);
958 void snd_pcm_access_mask_any(snd_pcm_access_mask_t *mask);
959 int snd_pcm_access_mask_test(const snd_pcm_access_mask_t *mask, snd_pcm_access_t val);
960 int snd_pcm_access_mask_empty(const snd_pcm_access_mask_t *mask);
961 void snd_pcm_access_mask_set(snd_pcm_access_mask_t *mask, snd_pcm_access_t val);
962 void snd_pcm_access_mask_reset(snd_pcm_access_mask_t *mask, snd_pcm_access_t val);
963
973 size_t snd_pcm_format_mask_sizeof(void);
978#define snd_pcm_format_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_format_mask)
979 int snd_pcm_format_mask_malloc(snd_pcm_format_mask_t **ptr);
980 void snd_pcm_format_mask_free(snd_pcm_format_mask_t *obj);
981 void snd_pcm_format_mask_copy(snd_pcm_format_mask_t *dst, const snd_pcm_format_mask_t *src);
982 void snd_pcm_format_mask_none(snd_pcm_format_mask_t *mask);
983 void snd_pcm_format_mask_any(snd_pcm_format_mask_t *mask);
984 int snd_pcm_format_mask_test(const snd_pcm_format_mask_t *mask, snd_pcm_format_t val);
985 int snd_pcm_format_mask_empty(const snd_pcm_format_mask_t *mask);
986 void snd_pcm_format_mask_set(snd_pcm_format_mask_t *mask, snd_pcm_format_t val);
987 void snd_pcm_format_mask_reset(snd_pcm_format_mask_t *mask, snd_pcm_format_t val);
988
998 size_t snd_pcm_subformat_mask_sizeof(void);
1003#define snd_pcm_subformat_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_subformat_mask)
1004 int snd_pcm_subformat_mask_malloc(snd_pcm_subformat_mask_t **ptr);
1005 void snd_pcm_subformat_mask_free(snd_pcm_subformat_mask_t *obj);
1006 void snd_pcm_subformat_mask_copy(snd_pcm_subformat_mask_t *dst, const snd_pcm_subformat_mask_t *src);
1007 void snd_pcm_subformat_mask_none(snd_pcm_subformat_mask_t *mask);
1008 void snd_pcm_subformat_mask_any(snd_pcm_subformat_mask_t *mask);
1009 int snd_pcm_subformat_mask_test(const snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val);
1010 int snd_pcm_subformat_mask_empty(const snd_pcm_subformat_mask_t *mask);
1011 void snd_pcm_subformat_mask_set(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val);
1012 void snd_pcm_subformat_mask_reset(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val);
1013
1023 size_t snd_pcm_status_sizeof(void);
1028#define snd_pcm_status_alloca(ptr) __snd_alloca(ptr, snd_pcm_status)
1029 int snd_pcm_status_malloc(snd_pcm_status_t **ptr);
1030 void snd_pcm_status_free(snd_pcm_status_t *obj);
1031 void snd_pcm_status_copy(snd_pcm_status_t *dst, const snd_pcm_status_t *src);
1032 snd_pcm_state_t snd_pcm_status_get_state(const snd_pcm_status_t *obj);
1033 void snd_pcm_status_get_trigger_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr);
1034 void snd_pcm_status_get_trigger_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr);
1035 void snd_pcm_status_get_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr);
1036 void snd_pcm_status_get_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr);
1037 void snd_pcm_status_get_audio_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr);
1038 void snd_pcm_status_get_driver_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr);
1039 void snd_pcm_status_get_audio_htstamp_report(const snd_pcm_status_t *obj,
1040 snd_pcm_audio_tstamp_report_t *audio_tstamp_report);
1041 void snd_pcm_status_set_audio_htstamp_config(snd_pcm_status_t *obj,
1042 snd_pcm_audio_tstamp_config_t *audio_tstamp_config);
1043
1044 static inline void snd_pcm_pack_audio_tstamp_config(unsigned int *data,
1045 snd_pcm_audio_tstamp_config_t *config)
1046{
1047 *data = config->report_delay;
1048 *data <<= 4;
1049 *data |= config->type_requested;
1050}
1051
1052 static inline void snd_pcm_unpack_audio_tstamp_report(unsigned int data, unsigned int accuracy,
1053 snd_pcm_audio_tstamp_report_t *report)
1054{
1055 data >>= 16;
1056 report->valid = data & 1;
1057 report->actual_type = (data >> 1) & 0xF;
1058 report->accuracy_report = (data >> 5) & 1;
1059 report->accuracy = accuracy;
1060}
1061
1062 snd_pcm_sframes_t snd_pcm_status_get_delay(const snd_pcm_status_t *obj);
1063 snd_pcm_uframes_t snd_pcm_status_get_avail(const snd_pcm_status_t *obj);
1064 snd_pcm_uframes_t snd_pcm_status_get_avail_max(const snd_pcm_status_t *obj);
1065 snd_pcm_uframes_t snd_pcm_status_get_overrange(const snd_pcm_status_t *obj);
1066
1076 const char *snd_pcm_type_name(snd_pcm_type_t type);
1077 const char *snd_pcm_stream_name(const snd_pcm_stream_t stream);
1078 const char *snd_pcm_access_name(const snd_pcm_access_t _access);
1079 const char *snd_pcm_format_name(const snd_pcm_format_t format);
1080 const char *snd_pcm_format_description(const snd_pcm_format_t format);
1081 const char *snd_pcm_subformat_name(const snd_pcm_subformat_t subformat);
1082 const char *snd_pcm_subformat_description(const snd_pcm_subformat_t subformat);
1083 snd_pcm_format_t snd_pcm_format_value(const char* name);
1084 const char *snd_pcm_tstamp_mode_name(const snd_pcm_tstamp_t mode);
1085 const char *snd_pcm_state_name(const snd_pcm_state_t state);
1086
1096 int snd_pcm_dump(snd_pcm_t *pcm, snd_output_t *out);
1097 int snd_pcm_dump_hw_setup(snd_pcm_t *pcm, snd_output_t *out);
1098 int snd_pcm_dump_sw_setup(snd_pcm_t *pcm, snd_output_t *out);
1099 int snd_pcm_dump_setup(snd_pcm_t *pcm, snd_output_t *out);
1100 int snd_pcm_hw_params_dump(snd_pcm_hw_params_t *params, snd_output_t *out);
1101 int snd_pcm_sw_params_dump(snd_pcm_sw_params_t *params, snd_output_t *out);
1102 int snd_pcm_status_dump(snd_pcm_status_t *status, snd_output_t *out);
1103
1113 int snd_pcm_mmap_begin(snd_pcm_t *pcm,
1114 const snd_pcm_channel_area_t **areas,
1115 snd_pcm_uframes_t *offset,
1116 snd_pcm_uframes_t *frames);
1117 snd_pcm_sframes_t snd_pcm_mmap_commit(snd_pcm_t *pcm,
1118 snd_pcm_uframes_t offset,
1119 snd_pcm_uframes_t frames);
1120 snd_pcm_sframes_t snd_pcm_mmap_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
1121 snd_pcm_sframes_t snd_pcm_mmap_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size);
1122 snd_pcm_sframes_t snd_pcm_mmap_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
1123 snd_pcm_sframes_t snd_pcm_mmap_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
1124
1134 int snd_pcm_format_signed(snd_pcm_format_t format);
1135 int snd_pcm_format_unsigned(snd_pcm_format_t format);
1136 int snd_pcm_format_linear(snd_pcm_format_t format);
1137 int snd_pcm_format_float(snd_pcm_format_t format);
1138 int snd_pcm_format_little_endian(snd_pcm_format_t format);
1139 int snd_pcm_format_big_endian(snd_pcm_format_t format);
1140 int snd_pcm_format_cpu_endian(snd_pcm_format_t format);
1141 int snd_pcm_format_width(snd_pcm_format_t format); /* in bits */
1142 int snd_pcm_format_physical_width(snd_pcm_format_t format); /* in bits */
1143 snd_pcm_format_t snd_pcm_build_linear_format(int width, int pwidth, int unsignd, int big_endian);
1144ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples);
1145uint8_t snd_pcm_format_silence(snd_pcm_format_t format);
1146uint16_t snd_pcm_format_silence_16(snd_pcm_format_t format);
1147uint32_t snd_pcm_format_silence_32(snd_pcm_format_t format);
1148uint64_t snd_pcm_format_silence_64(snd_pcm_format_t format);
1149 int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int samples);
1150
1151 snd_pcm_sframes_t snd_pcm_bytes_to_frames(snd_pcm_t *pcm, ssize_t bytes);
1152ssize_t snd_pcm_frames_to_bytes(snd_pcm_t *pcm, snd_pcm_sframes_t frames);
1153 long snd_pcm_bytes_to_samples(snd_pcm_t *pcm, ssize_t bytes);
1154ssize_t snd_pcm_samples_to_bytes(snd_pcm_t *pcm, long samples);
1155
1156 int snd_pcm_area_silence(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset,
1157 unsigned int samples, snd_pcm_format_t format);
1158 int snd_pcm_areas_silence(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset,
1159 unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format);
1160 int snd_pcm_area_copy(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset,
1161 const snd_pcm_channel_area_t *src_channel, snd_pcm_uframes_t src_offset,
1162 unsigned int samples, snd_pcm_format_t format);
1163 int snd_pcm_areas_copy(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset,
1164 const snd_pcm_channel_area_t *src_channels, snd_pcm_uframes_t src_offset,
1165 unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format);
1166 int snd_pcm_areas_copy_wrap(const snd_pcm_channel_area_t *dst_channels,
1167 snd_pcm_uframes_t dst_offset,
1168 const snd_pcm_uframes_t dst_size,
1169 const snd_pcm_channel_area_t *src_channels,
1170 snd_pcm_uframes_t src_offset,
1171 const snd_pcm_uframes_t src_size,
1172 const unsigned int channels,
1173 snd_pcm_uframes_t frames,
1174 const snd_pcm_format_t format);
1175
1183 static inline void *snd_pcm_channel_area_addr(const snd_pcm_channel_area_t *area, snd_pcm_uframes_t offset)
1184{
1185 return (char *)area->addr + (area->first + area->step * offset) / 8;
1186}
1187
1194 static inline unsigned int snd_pcm_channel_area_step(const snd_pcm_channel_area_t *area)
1195{
1196 return area->step / 8;
1197}
1198
1209 typedef enum _snd_pcm_hook_type {
1210 SND_PCM_HOOK_TYPE_HW_PARAMS = 0,
1211 SND_PCM_HOOK_TYPE_HW_FREE,
1212 SND_PCM_HOOK_TYPE_CLOSE,
1213 SND_PCM_HOOK_TYPE_LAST = SND_PCM_HOOK_TYPE_CLOSE
1214} snd_pcm_hook_type_t;
1215
1217 typedef struct _snd_pcm_hook snd_pcm_hook_t;
1219 typedef int (*snd_pcm_hook_func_t)(snd_pcm_hook_t *hook);
1220 snd_pcm_t *snd_pcm_hook_get_pcm(snd_pcm_hook_t *hook);
1221 void *snd_pcm_hook_get_private(snd_pcm_hook_t *hook);
1222 void snd_pcm_hook_set_private(snd_pcm_hook_t *hook, void *private_data);
1223 int snd_pcm_hook_add(snd_pcm_hook_t **hookp, snd_pcm_t *pcm,
1224 snd_pcm_hook_type_t type,
1225 snd_pcm_hook_func_t func, void *private_data);
1226 int snd_pcm_hook_remove(snd_pcm_hook_t *hook);
1227
1238 typedef struct _snd_pcm_scope_ops {
1242 int (*enable)(snd_pcm_scope_t *scope);
1246 void (*disable)(snd_pcm_scope_t *scope);
1250 void (*start)(snd_pcm_scope_t *scope);
1254 void (*stop)(snd_pcm_scope_t *scope);
1258 void (*update)(snd_pcm_scope_t *scope);
1262 void (*reset)(snd_pcm_scope_t *scope);
1266 void (*close)(snd_pcm_scope_t *scope);
1267} snd_pcm_scope_ops_t;
1268
1269 snd_pcm_uframes_t snd_pcm_meter_get_bufsize(snd_pcm_t *pcm);
1270 unsigned int snd_pcm_meter_get_channels(snd_pcm_t *pcm);
1271 unsigned int snd_pcm_meter_get_rate(snd_pcm_t *pcm);
1272 snd_pcm_uframes_t snd_pcm_meter_get_now(snd_pcm_t *pcm);
1273 snd_pcm_uframes_t snd_pcm_meter_get_boundary(snd_pcm_t *pcm);
1274 int snd_pcm_meter_add_scope(snd_pcm_t *pcm, snd_pcm_scope_t *scope);
1275 snd_pcm_scope_t *snd_pcm_meter_search_scope(snd_pcm_t *pcm, const char *name);
1276 int snd_pcm_scope_malloc(snd_pcm_scope_t **ptr);
1277 void snd_pcm_scope_set_ops(snd_pcm_scope_t *scope,
1278 const snd_pcm_scope_ops_t *val);
1279 void snd_pcm_scope_set_name(snd_pcm_scope_t *scope, const char *val);
1280 const char *snd_pcm_scope_get_name(snd_pcm_scope_t *scope);
1281 void *snd_pcm_scope_get_callback_private(snd_pcm_scope_t *scope);
1282 void snd_pcm_scope_set_callback_private(snd_pcm_scope_t *scope, void *val);
1283 int snd_pcm_scope_s16_open(snd_pcm_t *pcm, const char *name,
1284 snd_pcm_scope_t **scopep);
1285int16_t *snd_pcm_scope_s16_get_channel_buffer(snd_pcm_scope_t *scope,
1286 unsigned int channel);
1287
1298 typedef enum _snd_spcm_latency {
1301 SND_SPCM_LATENCY_STANDARD = 0,
1304 SND_SPCM_LATENCY_MEDIUM,
1307 SND_SPCM_LATENCY_REALTIME
1308} snd_spcm_latency_t;
1309
1311 typedef enum _snd_spcm_xrun_type {
1313 SND_SPCM_XRUN_IGNORE = 0,
1315 SND_SPCM_XRUN_STOP
1316} snd_spcm_xrun_type_t;
1317
1319 typedef enum _snd_spcm_duplex_type {
1321 SND_SPCM_DUPLEX_LIBERAL = 0,
1323 SND_SPCM_DUPLEX_PEDANTIC
1324} snd_spcm_duplex_type_t;
1325
1326 int snd_spcm_init(snd_pcm_t *pcm,
1327 unsigned int rate,
1328 unsigned int channels,
1329 snd_pcm_format_t format,
1330 snd_pcm_subformat_t subformat,
1331 snd_spcm_latency_t latency,
1332 snd_pcm_access_t _access,
1333 snd_spcm_xrun_type_t xrun_type);
1334
1335 int snd_spcm_init_duplex(snd_pcm_t *playback_pcm,
1336 snd_pcm_t *capture_pcm,
1337 unsigned int rate,
1338 unsigned int channels,
1339 snd_pcm_format_t format,
1340 snd_pcm_subformat_t subformat,
1341 snd_spcm_latency_t latency,
1342 snd_pcm_access_t _access,
1343 snd_spcm_xrun_type_t xrun_type,
1344 snd_spcm_duplex_type_t duplex_type);
1345
1346 int snd_spcm_init_get_params(snd_pcm_t *pcm,
1347 unsigned int *rate,
1348 snd_pcm_uframes_t *buffer_size,
1349 snd_pcm_uframes_t *period_size);
1350
1360/* Deprecated functions, for compatibility */
1361 const char *snd_pcm_start_mode_name(snd_pcm_start_t mode) __attribute__((deprecated));
1362 const char *snd_pcm_xrun_mode_name(snd_pcm_xrun_t mode) __attribute__((deprecated));
1363 int snd_pcm_sw_params_set_start_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_start_t val) __attribute__((deprecated));
1364 snd_pcm_start_t snd_pcm_sw_params_get_start_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated));
1365 int snd_pcm_sw_params_set_xrun_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_xrun_t val) __attribute__((deprecated));
1366 snd_pcm_xrun_t snd_pcm_sw_params_get_xrun_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated));
1367#if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_SW_PARAMS_API)
1368 int snd_pcm_sw_params_set_xfer_align(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val) __attribute__((deprecated));
1369 int snd_pcm_sw_params_get_xfer_align(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__((deprecated));
1370 int snd_pcm_sw_params_set_sleep_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, unsigned int val) __attribute__((deprecated));
1371 int snd_pcm_sw_params_get_sleep_min(const snd_pcm_sw_params_t *params, unsigned int *val) __attribute__((deprecated));
1372#endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_SW_PARAMS_API */
1373#if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_HW_PARAMS_API)
1374 int snd_pcm_hw_params_get_tick_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
1375 int snd_pcm_hw_params_get_tick_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
1376 int snd_pcm_hw_params_get_tick_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
1377 int snd_pcm_hw_params_test_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) __attribute__((deprecated));
1378 int snd_pcm_hw_params_set_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) __attribute__((deprecated));
1379 int snd_pcm_hw_params_set_tick_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
1380 int snd_pcm_hw_params_set_tick_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
1381 int snd_pcm_hw_params_set_tick_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir) __attribute__((deprecated));
1382 int snd_pcm_hw_params_set_tick_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
1383 int snd_pcm_hw_params_set_tick_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
1384 int snd_pcm_hw_params_set_tick_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
1385#endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_HW_PARAMS_API */
1386
1389#ifdef __cplusplus
1390}
1391#endif
1392
1393#endif /* __ALSA_PCM_H */
snd_config_t
struct _snd_config snd_config_t
Internal structure for a configuration node object.
Definition: conf.h:69
snd_htimestamp_t
struct timespec snd_htimestamp_t
Definition: global.h:154
snd_async_handler_t
struct _snd_async_handler snd_async_handler_t
Internal structure for an async notification client handler.
Definition: global.h:115
snd_timestamp_t
struct timeval snd_timestamp_t
Definition: global.h:152
snd_async_callback_t
void(* snd_async_callback_t)(snd_async_handler_t *handler)
Async notification callback.
Definition: global.h:122
snd_output_t
struct _snd_output snd_output_t
Internal structure for an output object.
Definition: output.h:56
snd_pcm_access_mask_empty
int snd_pcm_access_mask_empty(const snd_pcm_access_mask_t *mask)
test, if given a snd_pcm_access_mask_t is empty
Definition: pcm.c:3916
snd_pcm_access_mask_reset
void snd_pcm_access_mask_reset(snd_pcm_access_mask_t *mask, snd_pcm_access_t val)
make an access type missing from a snd_pcm_access_mask_t
Definition: pcm.c:3936
snd_pcm_access_mask_test
int snd_pcm_access_mask_test(const snd_pcm_access_mask_t *mask, snd_pcm_access_t val)
test the presence of an access type in a snd_pcm_access_mask_t
Definition: pcm.c:3905
snd_pcm_access_mask_copy
void snd_pcm_access_mask_copy(snd_pcm_access_mask_t *dst, const snd_pcm_access_mask_t *src)
copy one snd_pcm_access_mask_t to another
Definition: pcm.c:3876
snd_pcm_access_mask_any
void snd_pcm_access_mask_any(snd_pcm_access_mask_t *mask)
set all bits in a snd_pcm_access_mask_t
Definition: pcm.c:3895
snd_pcm_access_mask_sizeof
size_t snd_pcm_access_mask_sizeof(void)
get size of snd_pcm_access_mask_t
Definition: pcm.c:3843
snd_pcm_access_mask_free
void snd_pcm_access_mask_free(snd_pcm_access_mask_t *obj)
frees a previously allocated snd_pcm_access_mask_t
Definition: pcm.c:3866
snd_pcm_access_mask_none
void snd_pcm_access_mask_none(snd_pcm_access_mask_t *mask)
reset all bits in a snd_pcm_access_mask_t
Definition: pcm.c:3886
snd_pcm_access_mask_set
void snd_pcm_access_mask_set(snd_pcm_access_mask_t *mask, snd_pcm_access_t val)
make an access type present in a snd_pcm_access_mask_t
Definition: pcm.c:3926
snd_pcm_access_mask_malloc
int snd_pcm_access_mask_malloc(snd_pcm_access_mask_t **ptr)
allocate an empty snd_pcm_access_mask_t using standard malloc
Definition: pcm.c:3853
snd_pcm_hw_params_set_tick_time_last
int snd_pcm_hw_params_set_tick_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated))
(DEPRECATED) Restrict a configuration space to contain only its maximum tick time
Definition: pcm.c:6135
snd_pcm_hw_params_set_tick_time_first
int snd_pcm_hw_params_set_tick_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated))
(DEPRECATED) Restrict a configuration space to contain only its minimum tick time
Definition: pcm.c:6116
snd_pcm_hw_params_set_tick_time_max
int snd_pcm_hw_params_set_tick_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated))
(DEPRECATED) Restrict a configuration space with a maximum tick time
Definition: pcm.c:6062
snd_pcm_hw_params_set_tick_time_min
int snd_pcm_hw_params_set_tick_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated))
(DEPRECATED) Restrict a configuration space with a minimum tick time
Definition: pcm.c:6047
snd_pcm_hw_params_set_tick_time
int snd_pcm_hw_params_set_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) __attribute__((deprecated))
(DEPRECATED) Restrict a configuration space to contain only one tick time
Definition: pcm.c:6032
snd_pcm_hw_params_get_tick_time
int snd_pcm_hw_params_get_tick_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated))
(DEPRECATED) Extract tick time from a configuration space
Definition: pcm.c:5962
snd_pcm_sw_params_set_sleep_min
int snd_pcm_sw_params_set_sleep_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, unsigned int val) __attribute__((deprecated))
(DEPRECATED) Set minimum number of ticks to sleep inside a software configuration container
Definition: pcm.c:6451
snd_pcm_sw_params_set_xfer_align
int snd_pcm_sw_params_set_xfer_align(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val) __attribute__((deprecated))
(DEPRECATED) Set xfer align inside a software configuration container
Definition: pcm.c:6563
snd_pcm_sw_params_set_start_mode
int snd_pcm_sw_params_set_start_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_start_t val) __attribute__((deprecated))
(DEPRECATED) Set start mode inside a software configuration container
Definition: pcm.c:6286
snd_pcm_hw_params_set_tick_time_minmax
int snd_pcm_hw_params_set_tick_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir) __attribute__((deprecated))
(DEPRECATED) Restrict a configuration space to have tick times in a given range
Definition: pcm.c:6079
snd_pcm_sw_params_set_xrun_mode
int snd_pcm_sw_params_set_xrun_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_xrun_t val) __attribute__((deprecated))
(DEPRECATED) Set xrun mode inside a software configuration container
Definition: pcm.c:6333
snd_pcm_start_mode_name
const char * snd_pcm_start_mode_name(snd_pcm_start_t mode) __attribute__((deprecated))
(DEPRECATED) get name of PCM start mode setting
Definition: pcm.c:2196
snd_pcm_sw_params_get_sleep_min
int snd_pcm_sw_params_get_sleep_min(const snd_pcm_sw_params_t *params, unsigned int *val) __attribute__((deprecated))
(DEPRECATED) Get minimum numbers of ticks to sleep from a software configuration container
Definition: pcm.c:6466
snd_pcm_xrun_mode_name
const char * snd_pcm_xrun_mode_name(snd_pcm_xrun_t mode) __attribute__((deprecated))
(DEPRECATED) get name of PCM xrun mode setting
Definition: pcm.c:2212
snd_pcm_sw_params_get_xrun_mode
snd_pcm_xrun_t snd_pcm_sw_params_get_xrun_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated))
(DEPRECATED) Get xrun mode from a software configuration container
Definition: pcm.c:6360
snd_pcm_hw_params_set_tick_time_near
int snd_pcm_hw_params_set_tick_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated))
(DEPRECATED) Restrict a configuration space to have tick time nearest to a target
Definition: pcm.c:6097
snd_pcm_hw_params_get_tick_time_min
int snd_pcm_hw_params_get_tick_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated))
(DEPRECATED) Extract minimum tick time from a configuration space
Definition: pcm.c:5981
snd_pcm_sw_params_get_xfer_align
int snd_pcm_sw_params_get_xfer_align(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__((deprecated))
(DEPRECATED) Get xfer align from a software configuration container
Definition: pcm.c:6578
snd_pcm_hw_params_get_tick_time_max
int snd_pcm_hw_params_get_tick_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated))
(DEPRECATED) Extract maximum tick time from a configuration space
Definition: pcm.c:6000
snd_pcm_sw_params_get_start_mode
snd_pcm_start_t snd_pcm_sw_params_get_start_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated))
(DEPRECATED) Get start mode from a software configuration container
Definition: pcm.c:6312
snd_pcm_hw_params_test_tick_time
int snd_pcm_hw_params_test_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) __attribute__((deprecated))
(DEPRECATED) Verify if a tick time is available inside a configuration space for a PCM
Definition: pcm.c:6017
snd_pcm_access_name
const char * snd_pcm_access_name(const snd_pcm_access_t _access)
get name of PCM access type
Definition: pcm.c:2109
snd_pcm_format_name
const char * snd_pcm_format_name(const snd_pcm_format_t format)
get name of PCM sample format
Definition: pcm.c:2121
snd_pcm_format_description
const char * snd_pcm_format_description(const snd_pcm_format_t format)
get description of PCM sample format
Definition: pcm.c:2133
snd_pcm_format_value
snd_pcm_format_t snd_pcm_format_value(const char *name)
get PCM sample format from name
Definition: pcm.c:2145
snd_pcm_type_name
const char * snd_pcm_type_name(snd_pcm_type_t type)
get name of PCM type
Definition: pcm.c:2267
snd_pcm_state_name
const char * snd_pcm_state_name(const snd_pcm_state_t state)
get name of PCM state
Definition: pcm.c:2252
snd_pcm_tstamp_mode_name
const char * snd_pcm_tstamp_mode_name(const snd_pcm_tstamp_t mode)
get name of PCM tstamp mode setting
Definition: pcm.c:2228
snd_pcm_stream_name
const char * snd_pcm_stream_name(const snd_pcm_stream_t stream)
get name of PCM stream type
Definition: pcm.c:2097
snd_pcm_subformat_name
const char * snd_pcm_subformat_name(const snd_pcm_subformat_t subformat)
get name of PCM sample subformat
Definition: pcm.c:2172
snd_pcm_subformat_description
const char * snd_pcm_subformat_description(const snd_pcm_subformat_t subformat)
get description of PCM sample subformat
Definition: pcm.c:2184
snd_pcm_mmap_writen
snd_pcm_sframes_t snd_pcm_mmap_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size)
Write non interleaved frames to a PCM using direct buffer (mmap)
Definition: pcm_mmap.c:176
snd_pcm_mmap_readi
snd_pcm_sframes_t snd_pcm_mmap_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size)
Read interleaved frames from a PCM using direct buffer (mmap)
Definition: pcm_mmap.c:201
snd_pcm_mmap_readn
snd_pcm_sframes_t snd_pcm_mmap_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size)
Read non interleaved frames to a PCM using direct buffer (mmap)
Definition: pcm_mmap.c:226
snd_pcm_mmap_writei
snd_pcm_sframes_t snd_pcm_mmap_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size)
Write interleaved frames to a PCM using direct buffer (mmap)
Definition: pcm_mmap.c:151
snd_pcm_mmap_begin
int snd_pcm_mmap_begin(snd_pcm_t *pcm, const snd_pcm_channel_area_t **areas, snd_pcm_uframes_t *offset, snd_pcm_uframes_t *frames)
Application request to access a portion of direct (mmap) area.
Definition: pcm.c:7221
snd_pcm_mmap_commit
snd_pcm_sframes_t snd_pcm_mmap_commit(snd_pcm_t *pcm, snd_pcm_uframes_t offset, snd_pcm_uframes_t frames)
Application has completed the access to area requested with snd_pcm_mmap_begin.
Definition: pcm.c:7334
snd_pcm_hw_params_dump
int snd_pcm_hw_params_dump(snd_pcm_hw_params_t *params, snd_output_t *out)
Dump a PCM hardware configuration space.
Definition: pcm.c:3464
snd_pcm_dump_setup
int snd_pcm_dump_setup(snd_pcm_t *pcm, snd_output_t *out)
Dump current setup (hardware and software) for PCM.
Definition: pcm.c:2339
snd_pcm_dump_hw_setup
int snd_pcm_dump_hw_setup(snd_pcm_t *pcm, snd_output_t *out)
Dump current hardware setup for PCM.
Definition: pcm.c:2282
snd_pcm_dump_sw_setup
int snd_pcm_dump_sw_setup(snd_pcm_t *pcm, snd_output_t *out)
Dump current software setup for PCM.
Definition: pcm.c:2312
snd_pcm_dump
int snd_pcm_dump(snd_pcm_t *pcm, snd_output_t *out)
Dump PCM info.
Definition: pcm.c:2373
snd_pcm_sw_params_dump
int snd_pcm_sw_params_dump(snd_pcm_sw_params_t *params, snd_output_t *out)
Dump a software configuration.
Definition: pcm.c:6209
snd_pcm_status_dump
int snd_pcm_status_dump(snd_pcm_status_t *status, snd_output_t *out)
Dump status.
Definition: pcm.c:2352
snd_pcm_format_mask_set
void snd_pcm_format_mask_set(snd_pcm_format_mask_t *mask, snd_pcm_format_t val)
make a format present in a snd_pcm_format_mask_t
Definition: pcm.c:4028
snd_pcm_format_mask_free
void snd_pcm_format_mask_free(snd_pcm_format_mask_t *obj)
frees a previously allocated snd_pcm_format_mask_t
Definition: pcm.c:3968
snd_pcm_format_mask_none
void snd_pcm_format_mask_none(snd_pcm_format_mask_t *mask)
reset all bits in a snd_pcm_format_mask_t
Definition: pcm.c:3988
snd_pcm_format_mask_any
void snd_pcm_format_mask_any(snd_pcm_format_mask_t *mask)
set all bits in a snd_pcm_format_mask_t
Definition: pcm.c:3997
snd_pcm_format_mask_copy
void snd_pcm_format_mask_copy(snd_pcm_format_mask_t *dst, const snd_pcm_format_mask_t *src)
copy one snd_pcm_format_mask_t to another
Definition: pcm.c:3978
snd_pcm_format_mask_reset
void snd_pcm_format_mask_reset(snd_pcm_format_mask_t *mask, snd_pcm_format_t val)
make a format missing from a snd_pcm_format_mask_t
Definition: pcm.c:4038
snd_pcm_format_mask_empty
int snd_pcm_format_mask_empty(const snd_pcm_format_mask_t *mask)
test, if given a snd_pcm_format_mask_t is empty
Definition: pcm.c:4018
snd_pcm_format_mask_malloc
int snd_pcm_format_mask_malloc(snd_pcm_format_mask_t **ptr)
allocate an empty snd_pcm_format_mask_t using standard malloc
Definition: pcm.c:3955
snd_pcm_format_mask_test
int snd_pcm_format_mask_test(const snd_pcm_format_mask_t *mask, snd_pcm_format_t val)
test the presence of a format in a snd_pcm_format_mask_t
Definition: pcm.c:4007
snd_pcm_format_mask_sizeof
size_t snd_pcm_format_mask_sizeof(void)
get size of snd_pcm_format_mask_t
Definition: pcm.c:3945
snd_pcm_hw_params_set_rate_minmax
int snd_pcm_hw_params_set_rate_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir)
Restrict a configuration space to have rates in a given range.
Definition: pcm.c:4761
snd_pcm_hw_params_set_subformat
int snd_pcm_hw_params_set_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat)
Restrict a configuration space to contain only one subformat.
Definition: pcm.c:4420
snd_pcm_hw_params_sizeof
size_t snd_pcm_hw_params_sizeof(void)
get size of snd_pcm_hw_params_t
Definition: pcm.c:4151
snd_pcm_hw_params_test_periods
int snd_pcm_hw_params_test_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir)
Verify if a periods count is available inside a configuration space for a PCM.
Definition: pcm.c:5427
snd_pcm_hw_params_set_subformat_first
int snd_pcm_hw_params_set_subformat_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat)
Restrict a configuration space to contain only its first subformat.
Definition: pcm.c:4435
snd_pcm_hw_params_get_fifo_size
int snd_pcm_hw_params_get_fifo_size(const snd_pcm_hw_params_t *params)
Get hardware FIFO size info from a configuration space.
Definition: pcm.c:3815
snd_pcm_hw_params_set_periods_last
int snd_pcm_hw_params_set_periods_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to contain only its maximum periods count.
Definition: pcm.c:5545
snd_pcm_hw_params_set_period_size_integer
int snd_pcm_hw_params_set_period_size_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
Restrict a configuration space to contain only integer period sizes.
Definition: pcm.c:5357
snd_pcm_hw_params_set_channels_min
int snd_pcm_hw_params_set_channels_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val)
Restrict a configuration space with a minimum channels count.
Definition: pcm.c:4556
snd_pcm_hw_params_set_access_last
int snd_pcm_hw_params_set_access_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access)
Restrict a configuration space to contain only its last access type.
Definition: pcm.c:4260
snd_pcm_hw_params_get_periods_min
int snd_pcm_hw_params_get_periods_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract minimum periods count from a configuration space.
Definition: pcm.c:5393
snd_pcm_hw_params_get_buffer_size_min
int snd_pcm_hw_params_get_buffer_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val)
Extract minimum buffer size from a configuration space.
Definition: pcm.c:5780
snd_pcm_hw_params_get_access_mask
int snd_pcm_hw_params_get_access_mask(snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask)
Get access mask from a configuration space.
Definition: pcm.c:4283
snd_pcm_hw_params_set_channels_minmax
int snd_pcm_hw_params_set_channels_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, unsigned int *max)
Restrict a configuration space to have channels counts in a given range.
Definition: pcm.c:4581
snd_pcm_hw_params_get_min_align
int snd_pcm_hw_params_get_min_align(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val)
Get the minimum transfer align value in samples.
Definition: pcm.c:6147
snd_pcm_hw_params_set_rate
int snd_pcm_hw_params_set_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir)
Restrict a configuration space to contain only one rate.
Definition: pcm.c:4714
snd_pcm_hw_params_set_buffer_time_min
int snd_pcm_hw_params_set_buffer_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space with a minimum buffer time.
Definition: pcm.c:5657
snd_pcm_hw_params_set_buffer_size_near
int snd_pcm_hw_params_set_buffer_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val)
Restrict a configuration space to have buffer size nearest to a target.
Definition: pcm.c:5899
snd_pcm_hw_params_set_export_buffer
int snd_pcm_hw_params_set_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val)
Restrict a configuration space to allow the buffer to be accessible from outside.
Definition: pcm.c:4862
snd_pcm_hw_params_set_period_time_last
int snd_pcm_hw_params_set_period_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to contain only its maximum period time.
Definition: pcm.c:5119
snd_pcm_hw_params_set_period_time_min
int snd_pcm_hw_params_set_period_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space with a minimum period time.
Definition: pcm.c:5033
snd_pcm_hw_params_set_periods_near
int snd_pcm_hw_params_set_periods_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to have periods count nearest to a target.
Definition: pcm.c:5507
snd_pcm_hw_params_set_access_first
int snd_pcm_hw_params_set_access_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access)
Restrict a configuration space to contain only its first access type.
Definition: pcm.c:4244
snd_pcm_hw_params_set_format_mask
int snd_pcm_hw_params_set_format_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask)
Restrict a configuration space to contain only a set of formats.
Definition: pcm.c:4370
snd_pcm_hw_params_set_period_size_minmax
int snd_pcm_hw_params_set_period_size_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *min, int *mindir, snd_pcm_uframes_t *max, int *maxdir)
Restrict a configuration space to have period sizes in a given range.
Definition: pcm.c:5272
snd_pcm_hw_params_is_batch
int snd_pcm_hw_params_is_batch(const snd_pcm_hw_params_t *params)
Check if hardware does double buffering for data transfers for given configuration.
Definition: pcm.c:3524
snd_pcm_hw_params_set_rate_near
int snd_pcm_hw_params_set_rate_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to have rate nearest to a target.
Definition: pcm.c:4779
snd_pcm_hw_params_set_channels
int snd_pcm_hw_params_set_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val)
Restrict a configuration space to contain only one channels count.
Definition: pcm.c:4544
snd_pcm_hw_params_set_buffer_time_near
int snd_pcm_hw_params_set_buffer_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to have buffer time nearest to a target.
Definition: pcm.c:5707
snd_pcm_hw_params_is_double
int snd_pcm_hw_params_is_double(const snd_pcm_hw_params_t *params)
Check if hardware does double buffering for start/stop for given configuration.
Definition: pcm.c:3504
snd_pcm_hw_params_get_buffer_size_max
int snd_pcm_hw_params_get_buffer_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val)
Extract maximum buffer size from a configuration space.
Definition: pcm.c:5801
snd_pcm_hw_params_test_buffer_size
int snd_pcm_hw_params_test_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val)
Verify if a buffer size is available inside a configuration space for a PCM.
Definition: pcm.c:5820
snd_pcm_hw_params_set_subformat_mask
int snd_pcm_hw_params_set_subformat_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask)
Restrict a configuration space to contain only a set of subformats.
Definition: pcm.c:4464
snd_pcm_hw_params_get_period_size_min
int snd_pcm_hw_params_get_period_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir)
Extract minimum period size from a configuration space.
Definition: pcm.c:5160
snd_pcm_hw_params_get_period_wakeup
int snd_pcm_hw_params_get_period_wakeup(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val)
Extract period wakeup flag from a configuration space.
Definition: pcm.c:4931
snd_pcm_hw_params_get_rate
int snd_pcm_hw_params_get_rate(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract rate from a configuration space.
Definition: pcm.c:4647
snd_pcm_hw_params_get_format_mask
void snd_pcm_hw_params_get_format_mask(snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask)
Get format mask from a configuration space.
Definition: pcm.c:4380
snd_pcm_hw_params_set_periods
int snd_pcm_hw_params_set_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir)
Restrict a configuration space to contain only one periods count.
Definition: pcm.c:5442
snd_pcm_hw_params_set_period_time_first
int snd_pcm_hw_params_set_period_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to contain only its minimum period time.
Definition: pcm.c:5102
snd_pcm_hw_params_set_format_last
int snd_pcm_hw_params_set_format_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format)
Restrict a configuration space to contain only its last format.
Definition: pcm.c:4357
snd_pcm_hw_params_set_access
int snd_pcm_hw_params_set_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access)
Restrict a configuration space to contain only one access type.
Definition: pcm.c:4229
snd_pcm_hw_params_can_mmap_sample_resolution
int snd_pcm_hw_params_can_mmap_sample_resolution(const snd_pcm_hw_params_t *params)
Check if hardware supports sample-resolution mmap for given configuration.
Definition: pcm.c:3484
snd_pcm_hw_params_set_channels_last
int snd_pcm_hw_params_set_channels_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val)
Restrict a configuration space to contain only its maximum channels count.
Definition: pcm.c:4628
snd_pcm_hw_params_get_rate_numden
int snd_pcm_hw_params_get_rate_numden(const snd_pcm_hw_params_t *params, unsigned int *rate_num, unsigned int *rate_den)
Get rate exact info from a configuration space.
Definition: pcm.c:3774
snd_pcm_hw_params_set_period_size_min
int snd_pcm_hw_params_set_period_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir)
Restrict a configuration space with a minimum period size.
Definition: pcm.c:5232
snd_pcm_hw_params_set_channels_near
int snd_pcm_hw_params_set_channels_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val)
Restrict a configuration space to have channels count nearest to a target.
Definition: pcm.c:4596
snd_pcm_hw_params_set_rate_last
int snd_pcm_hw_params_set_rate_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to contain only its maximum rate.
Definition: pcm.c:4817
snd_pcm_hw_params_test_rate
int snd_pcm_hw_params_test_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir)
Verify if a rate is available inside a configuration space for a PCM.
Definition: pcm.c:4699
snd_pcm_hw_params_set_format
int snd_pcm_hw_params_set_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val)
Restrict a configuration space to contain only one format.
Definition: pcm.c:4326
snd_pcm_hw_params_get_periods_max
int snd_pcm_hw_params_get_periods_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract maximum periods count from a configuration space.
Definition: pcm.c:5411
snd_pcm_hw_params_set_periods_max
int snd_pcm_hw_params_set_periods_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space with a maximum periods count.
Definition: pcm.c:5472
snd_pcm_hw_params_test_format
int snd_pcm_hw_params_test_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val)
Verify if a format is available inside a configuration space for a PCM.
Definition: pcm.c:4314
snd_pcm_hw_params_get_format
int snd_pcm_hw_params_get_format(const snd_pcm_hw_params_t *params, snd_pcm_format_t *val)
Extract format from a configuration space.
Definition: pcm.c:4301
snd_pcm_hw_params_get_rate_max
int snd_pcm_hw_params_get_rate_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract maximum rate from a configuration space.
Definition: pcm.c:4683
snd_pcm_hw_params_get_buffer_time_max
int snd_pcm_hw_params_get_buffer_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract maximum buffer time from a configuration space.
Definition: pcm.c:5611
snd_pcm_hw_params_set_buffer_time_first
int snd_pcm_hw_params_set_buffer_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to contain only its minimum buffer time.
Definition: pcm.c:5726
snd_pcm_hw_params_can_resume
int snd_pcm_hw_params_can_resume(const snd_pcm_hw_params_t *params)
Check if hardware supports resume.
Definition: pcm.c:3624
snd_pcm_hw_params_any
int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
Fill params with a full configuration space for a PCM.
Definition: pcm.c:3833
snd_pcm_hw_params_malloc
int snd_pcm_hw_params_malloc(snd_pcm_hw_params_t **ptr)
allocate an invalid snd_pcm_hw_params_t using standard malloc
Definition: pcm.c:4161
snd_pcm_hw_params_get_period_time
int snd_pcm_hw_params_get_period_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract period time from a configuration space.
Definition: pcm.c:4950
snd_pcm_hw_params_get_periods
int snd_pcm_hw_params_get_periods(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract periods from a configuration space.
Definition: pcm.c:5375
snd_pcm_hw_params_set_channels_max
int snd_pcm_hw_params_set_channels_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val)
Restrict a configuration space with a maximum channels count.
Definition: pcm.c:4568
snd_pcm_hw_params_get_period_time_max
int snd_pcm_hw_params_get_period_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract maximum period time from a configuration space.
Definition: pcm.c:4986
snd_pcm_hw_params_get_access
int snd_pcm_hw_params_get_access(const snd_pcm_hw_params_t *params, snd_pcm_access_t *_access)
Extract access type from a configuration space.
Definition: pcm.c:4200
snd_pcm_hw_params_set_format_first
int snd_pcm_hw_params_set_format_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format)
Restrict a configuration space to contain only its first format.
Definition: pcm.c:4341
snd_pcm_hw_params_get_subformat
int snd_pcm_hw_params_get_subformat(const snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat)
Extract subformat from a configuration space.
Definition: pcm.c:4395
snd_pcm_hw_params_is_monotonic
int snd_pcm_hw_params_is_monotonic(const snd_pcm_hw_params_t *params)
Check if timestamps are monotonic for given configuration.
Definition: pcm.c:3564
snd_pcm_hw_params_set_buffer_size
int snd_pcm_hw_params_set_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val)
Restrict a configuration space to contain only one buffer size.
Definition: pcm.c:5834
snd_pcm_hw_params_set_rate_resample
int snd_pcm_hw_params_set_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val)
Restrict a configuration space to contain only real hardware rates.
Definition: pcm.c:4830
snd_pcm_hw_params_set_buffer_time_minmax
int snd_pcm_hw_params_set_buffer_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir)
Restrict a configuration space to have buffer times in a given range.
Definition: pcm.c:5689
snd_pcm_hw_params_set_rate_max
int snd_pcm_hw_params_set_rate_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space with a maximum rate.
Definition: pcm.c:4744
snd_pcm_hw_params_set_period_size
int snd_pcm_hw_params_set_period_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val, int dir)
Restrict a configuration space to contain only one period size.
Definition: pcm.c:5217
snd_pcm_hw_params_set_rate_min
int snd_pcm_hw_params_set_rate_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space with a minimum rate.
Definition: pcm.c:4729
snd_pcm_hw_params_get_sbits
int snd_pcm_hw_params_get_sbits(const snd_pcm_hw_params_t *params)
Get sample resolution info from a configuration space.
Definition: pcm.c:3796
snd_pcm_hw_params_free
void snd_pcm_hw_params_free(snd_pcm_hw_params_t *obj)
frees a previously allocated snd_pcm_hw_params_t
Definition: pcm.c:4174
snd_pcm_hw_params_test_channels
int snd_pcm_hw_params_test_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val)
Verify if a channels count is available inside a configuration space for a PCM.
Definition: pcm.c:4532
snd_pcm_hw_params_set_period_size_max
int snd_pcm_hw_params_set_period_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir)
Restrict a configuration space with a maximum period size.
Definition: pcm.c:5251
snd_pcm_hw_params_set_period_size_near
int snd_pcm_hw_params_set_period_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir)
Restrict a configuration space to have period size nearest to a target.
Definition: pcm.c:5295
snd_pcm_hw_params_get_channels_min
int snd_pcm_hw_params_get_channels_min(const snd_pcm_hw_params_t *params, unsigned int *val)
Extract minimum channels count from a configuration space.
Definition: pcm.c:4504
snd_pcm_hw_params_set_period_time_minmax
int snd_pcm_hw_params_set_period_time_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir)
Restrict a configuration space to have period times in a given range.
Definition: pcm.c:5065
snd_pcm_hw_params_test_buffer_time
int snd_pcm_hw_params_test_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir)
Verify if a buffer time is available inside a configuration space for a PCM.
Definition: pcm.c:5627
snd_pcm_hw_params_copy
void snd_pcm_hw_params_copy(snd_pcm_hw_params_t *dst, const snd_pcm_hw_params_t *src)
copy one snd_pcm_hw_params_t to another
Definition: pcm.c:4184
snd_pcm_hw_params_get_buffer_time_min
int snd_pcm_hw_params_get_buffer_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract minimum buffer time from a configuration space.
Definition: pcm.c:5593
snd_pcm_hw_params_supports_audio_ts_type
int snd_pcm_hw_params_supports_audio_ts_type(const snd_pcm_hw_params_t *params, int type)
Check if hardware supports type of audio timestamps.
Definition: pcm.c:3738
snd_pcm_hw_params_set_period_time_near
int snd_pcm_hw_params_set_period_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to have period time nearest to a target.
Definition: pcm.c:5083
snd_pcm_hw_params_set_periods_min
int snd_pcm_hw_params_set_periods_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space with a minimum periods count.
Definition: pcm.c:5457
snd_pcm_hw_params_set_period_time
int snd_pcm_hw_params_set_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir)
Restrict a configuration space to contain only one period time.
Definition: pcm.c:5017
snd_pcm_hw_params_set_periods_first
int snd_pcm_hw_params_set_periods_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to contain only its minimum periods count.
Definition: pcm.c:5526
snd_pcm_hw_params_can_pause
int snd_pcm_hw_params_can_pause(const snd_pcm_hw_params_t *params)
Check if hardware supports pause.
Definition: pcm.c:3604
snd_pcm_hw_params_set_period_time_max
int snd_pcm_hw_params_set_period_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space with a maximum period time.
Definition: pcm.c:5048
snd_pcm_hw_params_get_subformat_mask
void snd_pcm_hw_params_get_subformat_mask(snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask)
Get subformat mask from a configuration space.
Definition: pcm.c:4474
snd_pcm_hw_params_set_subformat_last
int snd_pcm_hw_params_set_subformat_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat)
Restrict a configuration space to contain only its last subformat.
Definition: pcm.c:4451
snd_pcm_hw_params_test_access
int snd_pcm_hw_params_test_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access)
Verify if an access type is available inside a configuration space for a PCM.
Definition: pcm.c:4217
snd_pcm_hw_params_get_period_size_max
int snd_pcm_hw_params_get_period_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir)
Extract maximum period size from a configuration space.
Definition: pcm.c:5182
snd_pcm_hw_params_get_buffer_size
int snd_pcm_hw_params_get_buffer_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val)
Extract buffer size from a configuration space.
Definition: pcm.c:5761
snd_pcm_hw_params_set_periods_integer
int snd_pcm_hw_params_set_periods_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
Restrict a configuration space to contain only integer periods counts.
Definition: pcm.c:5557
snd_pcm_hw_params_set_buffer_time_max
int snd_pcm_hw_params_set_buffer_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space with a maximum buffer time.
Definition: pcm.c:5672
snd_pcm_hw_params_get_period_size
int snd_pcm_hw_params_get_period_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir)
Extract period size from a configuration space.
Definition: pcm.c:5138
snd_pcm_hw_params_is_half_duplex
int snd_pcm_hw_params_is_half_duplex(const snd_pcm_hw_params_t *params)
Check if hardware does half-duplex only.
Definition: pcm.c:3644
snd_pcm_hw_params_test_period_size
int snd_pcm_hw_params_test_period_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val, int dir)
Verify if a period size is available inside a configuration space for a PCM.
Definition: pcm.c:5202
snd_pcm_hw_params_get_buffer_time
int snd_pcm_hw_params_get_buffer_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract buffer time from a configuration space.
Definition: pcm.c:5575
snd_pcm_hw_params_set_rate_first
int snd_pcm_hw_params_set_rate_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to contain only its minimum rate.
Definition: pcm.c:4798
snd_pcm_hw_params_set_period_wakeup
int snd_pcm_hw_params_set_period_wakeup(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val)
Restrict a configuration space to settings without period wakeups.
Definition: pcm.c:4909
snd_pcm_hw_params_set_buffer_size_max
int snd_pcm_hw_params_set_buffer_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val)
Restrict a configuration space with a maximum buffer size.
Definition: pcm.c:5862
snd_pcm_hw_params_is_block_transfer
int snd_pcm_hw_params_is_block_transfer(const snd_pcm_hw_params_t *params)
Check if hardware does block transfers for samples for given configuration.
Definition: pcm.c:3544
snd_pcm_hw_params_get_channels_max
int snd_pcm_hw_params_get_channels_max(const snd_pcm_hw_params_t *params, unsigned int *val)
Extract maximum channels count from a configuration space.
Definition: pcm.c:4519
snd_pcm_hw_params_set_buffer_size_first
int snd_pcm_hw_params_set_buffer_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val)
Restrict a configuration space to contain only its minimum buffer size.
Definition: pcm.c:5919
snd_pcm_hw_params_get_rate_resample
int snd_pcm_hw_params_get_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val)
Extract resample state from a configuration space.
Definition: pcm.c:4848
snd_pcm_hw_params_set_buffer_time
int snd_pcm_hw_params_set_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir)
Restrict a configuration space to contain only one buffer time.
Definition: pcm.c:5642
snd_pcm_hw_params_can_overrange
int snd_pcm_hw_params_can_overrange(const snd_pcm_hw_params_t *params)
Check if hardware supports overrange detection.
Definition: pcm.c:3584
snd_pcm_hw_params_set_buffer_size_min
int snd_pcm_hw_params_set_buffer_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val)
Restrict a configuration space with a minimum buffer size.
Definition: pcm.c:5846
snd_pcm_hw_params_set_period_size_last
int snd_pcm_hw_params_set_period_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir)
Restrict a configuration space to contain only its maximum period size.
Definition: pcm.c:5341
snd_pcm_hw_params_can_disable_period_wakeup
int snd_pcm_hw_params_can_disable_period_wakeup(const snd_pcm_hw_params_t *params)
Check if hardware can disable period wakeups.
Definition: pcm.c:3700
snd_pcm_hw_params_set_access_mask
int snd_pcm_hw_params_set_access_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask)
Restrict a configuration space to contain only a set of access types.
Definition: pcm.c:4273
snd_pcm_hw_params_set_buffer_size_last
int snd_pcm_hw_params_set_buffer_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val)
Restrict a configuration space to contain only its maximum buffer size.
Definition: pcm.c:5939
snd_pcm_hw_params_set_channels_first
int snd_pcm_hw_params_set_channels_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val)
Restrict a configuration space to contain only its minimum channels count.
Definition: pcm.c:4612
snd_pcm_hw_params_get_channels
int snd_pcm_hw_params_get_channels(const snd_pcm_hw_params_t *params, unsigned int *val)
Extract channels from a configuration space.
Definition: pcm.c:4489
snd_pcm_hw_params_get_period_time_min
int snd_pcm_hw_params_get_period_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract minimum period time from a configuration space.
Definition: pcm.c:4968
snd_pcm_hw_params_is_joint_duplex
int snd_pcm_hw_params_is_joint_duplex(const snd_pcm_hw_params_t *params)
Check if hardware does joint-duplex (playback and capture are somewhat correlated)
Definition: pcm.c:3664
snd_pcm_hw_params_set_buffer_size_minmax
int snd_pcm_hw_params_set_buffer_size_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *min, snd_pcm_uframes_t *max)
Restrict a configuration space to have buffer sizes in a given range.
Definition: pcm.c:5879
snd_pcm_hw_params_set_buffer_time_last
int snd_pcm_hw_params_set_buffer_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Restrict a configuration space to contain only its maximum buffered time.
Definition: pcm.c:5745
snd_pcm_hw_params_test_period_time
int snd_pcm_hw_params_test_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir)
Verify if a period time is available inside a configuration space for a PCM.
Definition: pcm.c:5002
snd_pcm_hw_params_test_subformat
int snd_pcm_hw_params_test_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat)
Verify if a subformat is available inside a configuration space for a PCM.
Definition: pcm.c:4408
snd_pcm_hw_params_set_periods_minmax
int snd_pcm_hw_params_set_periods_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir)
Restrict a configuration space to have periods counts in a given range.
Definition: pcm.c:5489
snd_pcm_hw_params_set_period_size_first
int snd_pcm_hw_params_set_period_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir)
Restrict a configuration space to contain only its minimum period size.
Definition: pcm.c:5318
snd_pcm_hw_params_get_rate_min
int snd_pcm_hw_params_get_rate_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir)
Extract minimum rate from a configuration space.
Definition: pcm.c:4665
snd_pcm_hw_params_can_sync_start
int snd_pcm_hw_params_can_sync_start(const snd_pcm_hw_params_t *params)
Check if hardware supports synchronized start with sample resolution.
Definition: pcm.c:3684
snd_pcm_hw_params_supports_audio_wallclock_ts
int snd_pcm_hw_params_supports_audio_wallclock_ts(const snd_pcm_hw_params_t *params)
Check if hardware supports audio wallclock timestamps.
Definition: pcm.c:3720
snd_pcm_hw_params_get_export_buffer
int snd_pcm_hw_params_get_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val)
Extract buffer accessibility from a configuration space.
Definition: pcm.c:4880
snd_pcm_areas_silence
int snd_pcm_areas_silence(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format)
Silence one or more areas.
Definition: pcm.c:3165
snd_pcm_format_silence_64
uint64_t snd_pcm_format_silence_64(snd_pcm_format_t format)
Return 64 bit expressing silence for a PCM sample format.
Definition: pcm_misc.c:410
snd_pcm_area_silence
int snd_pcm_area_silence(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset, unsigned int samples, snd_pcm_format_t format)
Silence an area.
Definition: pcm.c:3050
snd_pcm_format_float
int snd_pcm_format_float(snd_pcm_format_t format)
Return float info for a PCM sample format.
Definition: pcm_misc.c:110
snd_pcm_areas_copy_wrap
int snd_pcm_areas_copy_wrap(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, const snd_pcm_uframes_t dst_size, const snd_pcm_channel_area_t *src_channels, snd_pcm_uframes_t src_offset, const snd_pcm_uframes_t src_size, const unsigned int channels, snd_pcm_uframes_t frames, const snd_pcm_format_t format)
Copy one or more areas.
Definition: pcm.c:3415
snd_pcm_format_big_endian
int snd_pcm_format_big_endian(snd_pcm_format_t format)
Return endian info for a PCM sample format.
Definition: pcm_misc.c:181
snd_pcm_format_size
ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples)
Return bytes needed to store a quantity of PCM sample.
Definition: pcm_misc.c:342
snd_pcm_format_linear
int snd_pcm_format_linear(snd_pcm_format_t format)
Return linear info for a PCM sample format.
Definition: pcm_misc.c:100
snd_pcm_build_linear_format
snd_pcm_format_t snd_pcm_build_linear_format(int width, int pwidth, int unsignd, int big_endian)
Compose a PCM sample linear format.
Definition: pcm_misc.c:716
snd_pcm_format_silence_32
uint32_t snd_pcm_format_silence_32(snd_pcm_format_t format)
Return 32 bit expressing silence for a PCM sample format.
Definition: pcm_misc.c:572
snd_pcm_format_set_silence
int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int samples)
Silence a PCM samples buffer.
Definition: pcm_misc.c:607
snd_pcm_format_little_endian
int snd_pcm_format_little_endian(snd_pcm_format_t format)
Return endian info for a PCM sample format.
Definition: pcm_misc.c:128
snd_pcm_format_signed
int snd_pcm_format_signed(snd_pcm_format_t format)
Return sign info for a PCM sample linear format.
Definition: pcm_misc.c:35
snd_pcm_format_unsigned
int snd_pcm_format_unsigned(snd_pcm_format_t format)
Return sign info for a PCM sample linear format.
Definition: pcm_misc.c:85
snd_pcm_format_width
int snd_pcm_format_width(snd_pcm_format_t format)
Return nominal bits per a PCM sample.
Definition: pcm_misc.c:210
snd_pcm_area_copy
int snd_pcm_area_copy(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset, const snd_pcm_channel_area_t *src_channel, snd_pcm_uframes_t src_offset, unsigned int samples, snd_pcm_format_t format)
Copy an area.
Definition: pcm.c:3216
snd_pcm_format_physical_width
int snd_pcm_format_physical_width(snd_pcm_format_t format)
Return bits needed to store a PCM sample.
Definition: pcm_misc.c:277
snd_pcm_format_silence
uint8_t snd_pcm_format_silence(snd_pcm_format_t format)
Return 8 bit expressing silence for a PCM sample format.
Definition: pcm_misc.c:594
snd_pcm_frames_to_bytes
ssize_t snd_pcm_frames_to_bytes(snd_pcm_t *pcm, snd_pcm_sframes_t frames)
Convert frames in bytes for a PCM.
Definition: pcm.c:2408
snd_pcm_areas_copy
int snd_pcm_areas_copy(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, const snd_pcm_channel_area_t *src_channels, snd_pcm_uframes_t src_offset, unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format)
Copy one or more areas.
Definition: pcm.c:3337
snd_pcm_format_silence_16
uint16_t snd_pcm_format_silence_16(snd_pcm_format_t format)
Return 16 bit expressing silence for a PCM sample format.
Definition: pcm_misc.c:583
snd_pcm_samples_to_bytes
ssize_t snd_pcm_samples_to_bytes(snd_pcm_t *pcm, long samples)
Convert samples in bytes for a PCM.
Definition: pcm.c:2440
snd_pcm_bytes_to_samples
long snd_pcm_bytes_to_samples(snd_pcm_t *pcm, ssize_t bytes)
Convert bytes in samples for a PCM.
Definition: pcm.c:2424
snd_pcm_bytes_to_frames
snd_pcm_sframes_t snd_pcm_bytes_to_frames(snd_pcm_t *pcm, ssize_t bytes)
Convert bytes in frames for a PCM.
Definition: pcm.c:2392
snd_pcm_format_cpu_endian
int snd_pcm_format_cpu_endian(snd_pcm_format_t format)
Return endian info for a PCM sample format.
Definition: pcm_misc.c:196
snd_pcm_hook_func_t
int(* snd_pcm_hook_func_t)(snd_pcm_hook_t *hook)
Definition: pcm.h:1219
snd_pcm_hook_get_pcm
snd_pcm_t * snd_pcm_hook_get_pcm(snd_pcm_hook_t *hook)
Get PCM handle for a PCM hook.
Definition: pcm_hooks.c:560
snd_pcm_hook_get_private
void * snd_pcm_hook_get_private(snd_pcm_hook_t *hook)
Get callback function private data for a PCM hook.
Definition: pcm_hooks.c:571
snd_pcm_hook_remove
int snd_pcm_hook_remove(snd_pcm_hook_t *hook)
Remove a PCM hook.
Definition: pcm_hooks.c:628
snd_pcm_hook_type_t
snd_pcm_hook_type_t
Definition: pcm.h:1209
snd_pcm_hook_set_private
void snd_pcm_hook_set_private(snd_pcm_hook_t *hook, void *private_data)
Set callback function private data for a PCM hook.
Definition: pcm_hooks.c:582
snd_pcm_hook_add
int snd_pcm_hook_add(snd_pcm_hook_t **hookp, snd_pcm_t *pcm, snd_pcm_hook_type_t type, snd_pcm_hook_func_t func, void *private_data)
Add a PCM hook at end of hooks chain.
Definition: pcm_hooks.c:600
snd_pcm_hook_t
struct _snd_pcm_hook snd_pcm_hook_t
Definition: pcm.h:1217
snd_pcm_info_get_device
unsigned int snd_pcm_info_get_device(const snd_pcm_info_t *obj)
Get device from a PCM info container.
Definition: pcm.c:7039
snd_pcm_info_copy
void snd_pcm_info_copy(snd_pcm_info_t *dst, const snd_pcm_info_t *src)
copy one snd_pcm_info_t to another
Definition: pcm.c:7028
snd_pcm_info_malloc
int snd_pcm_info_malloc(snd_pcm_info_t **ptr)
allocate an invalid snd_pcm_info_t using standard malloc
Definition: pcm.c:7005
snd_pcm_info_set_subdevice
void snd_pcm_info_set_subdevice(snd_pcm_info_t *obj, unsigned int val)
Set wanted subdevice inside a PCM info container (see snd_ctl_pcm_info)
Definition: pcm.c:7184
snd_pcm_info_get_subdevice_name
const char * snd_pcm_info_get_subdevice_name(const snd_pcm_info_t *obj)
Get subdevice name from a PCM info container.
Definition: pcm.c:7105
snd_pcm_info_get_subclass
snd_pcm_subclass_t snd_pcm_info_get_subclass(const snd_pcm_info_t *obj)
Get subclass from a PCM info container.
Definition: pcm.c:7127
snd_pcm_info_get_card
int snd_pcm_info_get_card(const snd_pcm_info_t *obj)
Get card from a PCM info container.
Definition: pcm.c:7072
snd_pcm_info_get_sync
snd_pcm_sync_id_t snd_pcm_info_get_sync(const snd_pcm_info_t *obj)
Get hardware synchronization ID from a PCM info container.
Definition: pcm.c:7160
snd_pcm_info_get_name
const char * snd_pcm_info_get_name(const snd_pcm_info_t *obj)
Get name from a PCM info container.
Definition: pcm.c:7094
snd_pcm_info_set_stream
void snd_pcm_info_set_stream(snd_pcm_info_t *obj, snd_pcm_stream_t val)
Set wanted stream inside a PCM info container (see snd_ctl_pcm_info)
Definition: pcm.c:7195
snd_pcm_info_sizeof
size_t snd_pcm_info_sizeof(void)
get size of snd_pcm_info_t
Definition: pcm.c:6995
snd_pcm_info_get_id
const char * snd_pcm_info_get_id(const snd_pcm_info_t *obj)
Get id from a PCM info container.
Definition: pcm.c:7083
snd_pcm_info_free
void snd_pcm_info_free(snd_pcm_info_t *obj)
frees a previously allocated snd_pcm_info_t
Definition: pcm.c:7018
snd_pcm_info_set_device
void snd_pcm_info_set_device(snd_pcm_info_t *obj, unsigned int val)
Set wanted device inside a PCM info container (see snd_ctl_pcm_info)
Definition: pcm.c:7173
snd_pcm_info_get_stream
snd_pcm_stream_t snd_pcm_info_get_stream(const snd_pcm_info_t *obj)
Get stream (direction) from a PCM info container.
Definition: pcm.c:7061
snd_pcm_info_get_subdevices_avail
unsigned int snd_pcm_info_get_subdevices_avail(const snd_pcm_info_t *obj)
Get available subdevices count from a PCM info container.
Definition: pcm.c:7149
snd_pcm_info_get_class
snd_pcm_class_t snd_pcm_info_get_class(const snd_pcm_info_t *obj)
Get class from a PCM info container.
Definition: pcm.c:7116
snd_pcm_info_get_subdevices_count
unsigned int snd_pcm_info_get_subdevices_count(const snd_pcm_info_t *obj)
Get subdevices count from a PCM info container.
Definition: pcm.c:7138
snd_pcm_info_get_subdevice
unsigned int snd_pcm_info_get_subdevice(const snd_pcm_info_t *obj)
Get subdevice from a PCM info container.
Definition: pcm.c:7050
snd_pcm_sw_params_get_period_event
int snd_pcm_sw_params_get_period_event(const snd_pcm_sw_params_t *params, int *val)
Get period event from a software configuration container.
Definition: pcm.c:6546
snd_pcm_sw_params_get_tstamp_type
int snd_pcm_sw_params_get_tstamp_type(const snd_pcm_sw_params_t *params, snd_pcm_tstamp_type_t *val)
Get timestamp type from a software configuration container.
Definition: pcm.c:6434
snd_pcm_sw_params_set_start_threshold
int snd_pcm_sw_params_set_start_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val)
Set start threshold inside a software configuration container.
Definition: pcm.c:6598
snd_pcm_sw_params_get_start_threshold
int snd_pcm_sw_params_get_start_threshold(const snd_pcm_sw_params_t *paramsm, snd_pcm_uframes_t *val)
Get start threshold from a software configuration container.
Definition: pcm.c:6618
snd_pcm_sw_params_malloc
int snd_pcm_sw_params_malloc(snd_pcm_sw_params_t **ptr)
allocate an invalid snd_pcm_sw_params_t using standard malloc
Definition: pcm.c:6237
snd_pcm_sw_params_free
void snd_pcm_sw_params_free(snd_pcm_sw_params_t *obj)
frees a previously allocated snd_pcm_sw_params_t
Definition: pcm.c:6250
snd_pcm_sw_params_get_tstamp_mode
int snd_pcm_sw_params_get_tstamp_mode(const snd_pcm_sw_params_t *params, snd_pcm_tstamp_t *val)
Get timestamp mode from a software configuration container.
Definition: pcm.c:6402
snd_pcm_sw_params_get_avail_min
int snd_pcm_sw_params_get_avail_min(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val)
Get avail min from a software configuration container.
Definition: pcm.c:6516
snd_pcm_sw_params_set_silence_threshold
int snd_pcm_sw_params_set_silence_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val)
Set silence threshold inside a software configuration container.
Definition: pcm.c:6687
snd_pcm_sw_params_get_silence_size
int snd_pcm_sw_params_get_silence_size(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val)
Get silence size from a software configuration container.
Definition: pcm.c:6767
snd_pcm_sw_params_set_stop_threshold
int snd_pcm_sw_params_set_stop_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val)
Set stop threshold inside a software configuration container.
Definition: pcm.c:6642
snd_pcm_sw_params_sizeof
size_t snd_pcm_sw_params_sizeof(void)
get size of snd_pcm_sw_params_t
Definition: pcm.c:6227
snd_pcm_sw_params_set_avail_min
int snd_pcm_sw_params_set_avail_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val)
Set avail min inside a software configuration container.
Definition: pcm.c:6490
snd_pcm_sw_params_get_silence_threshold
int snd_pcm_sw_params_get_silence_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val)
Get silence threshold from a software configuration container.
Definition: pcm.c:6713
snd_pcm_sw_params_get_stop_threshold
int snd_pcm_sw_params_get_stop_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val)
Get stop threshold from a software configuration container.
Definition: pcm.c:6664
snd_pcm_sw_params_get_boundary
int snd_pcm_sw_params_get_boundary(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val)
Get boundary for ring pointers from a software configuration container.
Definition: pcm.c:6272
snd_pcm_sw_params_set_tstamp_type
int snd_pcm_sw_params_set_tstamp_type(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_type_t val)
Set timestamp type inside a software configuration container.
Definition: pcm.c:6417
snd_pcm_sw_params_set_tstamp_mode
int snd_pcm_sw_params_set_tstamp_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_t val)
Set timestamp mode inside a software configuration container.
Definition: pcm.c:6381
snd_pcm_sw_params_set_silence_size
int snd_pcm_sw_params_set_silence_size(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val)
Set silence size inside a software configuration container.
Definition: pcm.c:6741
snd_pcm_sw_params_set_period_event
int snd_pcm_sw_params_set_period_event(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, int val)
Set period event inside a software configuration container.
Definition: pcm.c:6533
snd_pcm_sw_params_copy
void snd_pcm_sw_params_copy(snd_pcm_sw_params_t *dst, const snd_pcm_sw_params_t *src)
copy one snd_pcm_sw_params_t to another
Definition: pcm.c:6260
snd_pcm_scope_get_name
const char * snd_pcm_scope_get_name(snd_pcm_scope_t *scope)
Get name of a SND_PCM_TYPE_METER PCM scope.
Definition: pcm_meter.c:961
snd_pcm_scope_get_callback_private
void * snd_pcm_scope_get_callback_private(snd_pcm_scope_t *scope)
Get callbacks private value for a SND_PCM_TYPE_METER PCM scope.
Definition: pcm_meter.c:981
snd_pcm_scope_malloc
int snd_pcm_scope_malloc(snd_pcm_scope_t **ptr)
allocate an invalid snd_pcm_scope_t using standard malloc
Definition: pcm_meter.c:1230
snd_pcm_meter_get_bufsize
snd_pcm_uframes_t snd_pcm_meter_get_bufsize(snd_pcm_t *pcm)
Get meter buffer size from a SND_PCM_TYPE_METER PCM.
Definition: pcm_meter.c:881
snd_pcm_scope_s16_open
int snd_pcm_scope_s16_open(snd_pcm_t *pcm, const char *name, snd_pcm_scope_t **scopep)
Add a s16 pseudo scope to a SND_PCM_TYPE_METER PCM.
Definition: pcm_meter.c:1179
snd_pcm_meter_get_boundary
snd_pcm_uframes_t snd_pcm_meter_get_boundary(snd_pcm_t *pcm)
Get boundary for frame pointers from a SND_PCM_TYPE_METER PCM.
Definition: pcm_meter.c:937
snd_pcm_scope_set_callback_private
void snd_pcm_scope_set_callback_private(snd_pcm_scope_t *scope, void *val)
Get callbacks private value for a SND_PCM_TYPE_METER PCM scope.
Definition: pcm_meter.c:991
snd_pcm_meter_get_rate
unsigned int snd_pcm_meter_get_rate(snd_pcm_t *pcm)
Get meter rate from a SND_PCM_TYPE_METER PCM.
Definition: pcm_meter.c:909
snd_pcm_meter_search_scope
snd_pcm_scope_t * snd_pcm_meter_search_scope(snd_pcm_t *pcm, const char *name)
Search an installed scope inside a SND_PCM_TYPE_METER PCM.
Definition: pcm_meter.c:861
snd_pcm_meter_get_now
snd_pcm_uframes_t snd_pcm_meter_get_now(snd_pcm_t *pcm)
Get meter "now" frame pointer from a SND_PCM_TYPE_METER PCM.
Definition: pcm_meter.c:923
snd_pcm_scope_set_name
void snd_pcm_scope_set_name(snd_pcm_scope_t *scope, const char *val)
Set name of a SND_PCM_TYPE_METER PCM scope.
Definition: pcm_meter.c:951
snd_pcm_scope_set_ops
void snd_pcm_scope_set_ops(snd_pcm_scope_t *scope, const snd_pcm_scope_ops_t *val)
Set callbacks for a SND_PCM_TYPE_METER PCM scope.
Definition: pcm_meter.c:971
snd_pcm_scope_s16_get_channel_buffer
int16_t * snd_pcm_scope_s16_get_channel_buffer(snd_pcm_scope_t *scope, unsigned int channel)
Get s16 pseudo scope frames buffer for a channel.
Definition: pcm_meter.c:1211
snd_pcm_meter_add_scope
int snd_pcm_meter_add_scope(snd_pcm_t *pcm, snd_pcm_scope_t *scope)
Add a scope to a SND_PCM_TYPE_METER PCM.
Definition: pcm_meter.c:846
snd_pcm_meter_get_channels
unsigned int snd_pcm_meter_get_channels(snd_pcm_t *pcm)
Get meter channels from a SND_PCM_TYPE_METER PCM.
Definition: pcm_meter.c:895
snd_spcm_latency_t
snd_spcm_latency_t
Definition: pcm.h:1298
snd_spcm_init_duplex
int snd_spcm_init_duplex(snd_pcm_t *playback_pcm, snd_pcm_t *capture_pcm, unsigned int rate, unsigned int channels, snd_pcm_format_t format, snd_pcm_subformat_t subformat, snd_spcm_latency_t latency, snd_pcm_access_t _access, snd_spcm_xrun_type_t xrun_type, snd_spcm_duplex_type_t duplex_type)
Initialize simple PCMs in the duplex mode.
Definition: pcm_simple.c:209
snd_spcm_init
int snd_spcm_init(snd_pcm_t *pcm, unsigned int rate, unsigned int channels, snd_pcm_format_t format, snd_pcm_subformat_t subformat, snd_spcm_latency_t latency, snd_pcm_access_t _access, snd_spcm_xrun_type_t xrun_type)
Set up a simple PCM.
Definition: pcm_simple.c:157
snd_spcm_duplex_type_t
snd_spcm_duplex_type_t
Definition: pcm.h:1319
snd_spcm_init_get_params
int snd_spcm_init_get_params(snd_pcm_t *pcm, unsigned int *rate, snd_pcm_uframes_t *buffer_size, snd_pcm_uframes_t *period_size)
Get the set up of simple PCM.
Definition: pcm_simple.c:284
snd_spcm_xrun_type_t
snd_spcm_xrun_type_t
Definition: pcm.h:1311
SND_SPCM_LATENCY_STANDARD
@ SND_SPCM_LATENCY_STANDARD
Definition: pcm.h:1301
SND_SPCM_LATENCY_REALTIME
@ SND_SPCM_LATENCY_REALTIME
Definition: pcm.h:1307
SND_SPCM_LATENCY_MEDIUM
@ SND_SPCM_LATENCY_MEDIUM
Definition: pcm.h:1304
SND_SPCM_DUPLEX_LIBERAL
@ SND_SPCM_DUPLEX_LIBERAL
Definition: pcm.h:1321
SND_SPCM_DUPLEX_PEDANTIC
@ SND_SPCM_DUPLEX_PEDANTIC
Definition: pcm.h:1323
SND_SPCM_XRUN_STOP
@ SND_SPCM_XRUN_STOP
Definition: pcm.h:1315
SND_SPCM_XRUN_IGNORE
@ SND_SPCM_XRUN_IGNORE
Definition: pcm.h:1313
snd_pcm_status_get_audio_htstamp
void snd_pcm_status_get_audio_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr)
Get "now" hi-res audio timestamp from a PCM status container.
Definition: pcm.c:6899
snd_pcm_status_get_delay
snd_pcm_sframes_t snd_pcm_status_get_delay(const snd_pcm_status_t *obj)
Get delay from a PCM status container (see snd_pcm_delay)
Definition: pcm.c:6953
snd_pcm_status_copy
void snd_pcm_status_copy(snd_pcm_status_t *dst, const snd_pcm_status_t *src)
copy one snd_pcm_status_t to another
Definition: pcm.c:6813
snd_pcm_status_get_overrange
snd_pcm_uframes_t snd_pcm_status_get_overrange(const snd_pcm_status_t *obj)
Get count of ADC overrange detections since last call.
Definition: pcm.c:6985
snd_pcm_status_get_trigger_tstamp
void snd_pcm_status_get_trigger_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr)
Get trigger timestamp from a PCM status container.
Definition: pcm.c:6839
snd_pcm_status_sizeof
size_t snd_pcm_status_sizeof(void)
get size of snd_pcm_status_t
Definition: pcm.c:6780
snd_pcm_status_get_driver_htstamp
void snd_pcm_status_get_driver_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr)
Get "now" hi-res driver timestamp from a PCM status container. Defines when the status was generated ...
Definition: pcm.c:6911
snd_pcm_status_get_audio_htstamp_report
void snd_pcm_status_get_audio_htstamp_report(const snd_pcm_status_t *obj, snd_pcm_audio_tstamp_report_t *audio_tstamp_report)
Get audio_tstamp_report from a PCM status container.
Definition: pcm.c:6922
snd_pcm_status_get_avail
snd_pcm_uframes_t snd_pcm_status_get_avail(const snd_pcm_status_t *obj)
Get number of frames available from a PCM status container (see snd_pcm_avail_update)
Definition: pcm.c:6963
snd_pcm_status_malloc
int snd_pcm_status_malloc(snd_pcm_status_t **ptr)
allocate an invalid snd_pcm_status_t using standard malloc
Definition: pcm.c:6790
snd_pcm_status_get_trigger_htstamp
void snd_pcm_status_get_trigger_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr)
Get trigger hi-res timestamp from a PCM status container.
Definition: pcm.c:6858
snd_pcm_status_get_state
snd_pcm_state_t snd_pcm_status_get_state(const snd_pcm_status_t *obj)
Get state from a PCM status container (see snd_pcm_state)
Definition: pcm.c:6824
snd_pcm_status_get_avail_max
snd_pcm_uframes_t snd_pcm_status_get_avail_max(const snd_pcm_status_t *obj)
Get maximum number of frames available from a PCM status container after last snd_pcm_status call.
Definition: pcm.c:6975
snd_pcm_status_set_audio_htstamp_config
void snd_pcm_status_set_audio_htstamp_config(snd_pcm_status_t *obj, snd_pcm_audio_tstamp_config_t *audio_tstamp_config)
set audio_tstamp_config from a PCM status container
Definition: pcm.c:6936
snd_pcm_status_get_tstamp
void snd_pcm_status_get_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr)
Get "now" timestamp from a PCM status container.
Definition: pcm.c:6871
snd_pcm_status_free
void snd_pcm_status_free(snd_pcm_status_t *obj)
frees a previously allocated snd_pcm_status_t
Definition: pcm.c:6803
snd_pcm_status_get_htstamp
void snd_pcm_status_get_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr)
Get "now" hi-res timestamp from a PCM status container.
Definition: pcm.c:6886
snd_pcm_subformat_mask_free
void snd_pcm_subformat_mask_free(snd_pcm_subformat_mask_t *obj)
frees a previously allocated snd_pcm_subformat_mask_t
Definition: pcm.c:4071
snd_pcm_subformat_mask_test
int snd_pcm_subformat_mask_test(const snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val)
test the presence of a subformat in a snd_pcm_subformat_mask_t
Definition: pcm.c:4110
snd_pcm_subformat_mask_none
void snd_pcm_subformat_mask_none(snd_pcm_subformat_mask_t *mask)
reset all bits in a snd_pcm_subformat_mask_t
Definition: pcm.c:4091
snd_pcm_subformat_mask_malloc
int snd_pcm_subformat_mask_malloc(snd_pcm_subformat_mask_t **ptr)
allocate an empty snd_pcm_subformat_mask_t using standard malloc
Definition: pcm.c:4058
snd_pcm_subformat_mask_empty
int snd_pcm_subformat_mask_empty(const snd_pcm_subformat_mask_t *mask)
test, if given a snd_pcm_subformat_mask_t is empty
Definition: pcm.c:4121
snd_pcm_subformat_mask_sizeof
size_t snd_pcm_subformat_mask_sizeof(void)
get size of snd_pcm_subformat_mask_t
Definition: pcm.c:4048
snd_pcm_subformat_mask_set
void snd_pcm_subformat_mask_set(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val)
make a subformat present in a snd_pcm_subformat_mask_t
Definition: pcm.c:4131
snd_pcm_subformat_mask_any
void snd_pcm_subformat_mask_any(snd_pcm_subformat_mask_t *mask)
set all bits in a snd_pcm_subformat_mask_t
Definition: pcm.c:4100
snd_pcm_subformat_mask_reset
void snd_pcm_subformat_mask_reset(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val)
make a subformat missing from a snd_pcm_subformat_mask_t
Definition: pcm.c:4141
snd_pcm_subformat_mask_copy
void snd_pcm_subformat_mask_copy(snd_pcm_subformat_mask_t *dst, const snd_pcm_subformat_mask_t *src)
copy one snd_pcm_subformat_mask_t to another
Definition: pcm.c:4081
snd_pcm_delay
int snd_pcm_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp)
Obtain delay for a running PCM handle.
Definition: pcm.c:1139
snd_pcm_close
int snd_pcm_close(snd_pcm_t *pcm)
close PCM handle
Definition: pcm.c:766
_snd_pcm_type
_snd_pcm_type
Definition: pcm.h:411
snd_pcm_chmap_position
snd_pcm_chmap_position
Definition: pcm.h:572
snd_pcm_format_mask_t
struct _snd_pcm_format_mask snd_pcm_format_mask_t
Definition: pcm.h:73
snd_pcm_free_chmaps
void snd_pcm_free_chmaps(snd_pcm_chmap_query_t **maps)
Definition: pcm.c:8114
snd_pcm_unlink
int snd_pcm_unlink(snd_pcm_t *pcm)
Remove a PCM from a linked group.
Definition: pcm.c:1719
snd_pcm_rewindable
snd_pcm_sframes_t snd_pcm_rewindable(snd_pcm_t *pcm)
Get safe count of frames which can be rewinded.
Definition: pcm.c:1411
snd_pcm_start_t
snd_pcm_start_t
Definition: pcm.h:316
snd_pcm_resume
int snd_pcm_resume(snd_pcm_t *pcm)
Resume from suspend, no samples are lost.
Definition: pcm.c:1168
snd_pcm_avail_delay
int snd_pcm_avail_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *availp, snd_pcm_sframes_t *delayp)
Combine snd_pcm_avail and snd_pcm_delay functions.
Definition: pcm.c:3011
snd_pcm_open_fallback
int snd_pcm_open_fallback(snd_pcm_t **pcm, snd_config_t *root, const char *name, const char *orig_name, snd_pcm_stream_t stream, int mode)
Opens a fallback PCM.
Definition: pcm.c:2736
snd_pcm_chmap_name
const char * snd_pcm_chmap_name(enum snd_pcm_chmap_position val)
Definition: pcm.c:8208
snd_pcm_hw_params
int snd_pcm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
Install one PCM hardware configuration chosen from a configuration space and snd_pcm_prepare it.
Definition: pcm.c:940
snd_pcm_chmap_print
int snd_pcm_chmap_print(const snd_pcm_chmap_t *map, size_t maxlen, char *buf)
Definition: pcm.c:8276
snd_pcm_subformat_t
snd_pcm_subformat_t
Definition: pcm.h:284
snd_pcm_recover
int snd_pcm_recover(snd_pcm_t *pcm, int err, int silent)
Recover the stream state from an error or suspend.
Definition: pcm.c:8557
snd_pcm_hw_free
int snd_pcm_hw_free(snd_pcm_t *pcm)
Remove PCM hardware configuration and free associated resources.
Definition: pcm.c:955
snd_pcm_get_params
int snd_pcm_get_params(snd_pcm_t *pcm, snd_pcm_uframes_t *buffer_size, snd_pcm_uframes_t *period_size)
Get the transfer size parameters in a simple way.
Definition: pcm.c:8794
snd_pcm_audio_tstamp_type_t
snd_pcm_audio_tstamp_type_t
Definition: pcm.h:353
snd_pcm_status
int snd_pcm_status(snd_pcm_t *pcm, snd_pcm_status_t *status)
Obtain status (runtime) information for PCM handle.
Definition: pcm.c:1041
snd_pcm_reset
int snd_pcm_reset(snd_pcm_t *pcm)
Reset PCM position.
Definition: pcm.c:1252
snd_pcm_htimestamp
int snd_pcm_htimestamp(snd_pcm_t *pcm, snd_pcm_uframes_t *avail, snd_htimestamp_t *tstamp)
Obtain last position update hi-res timestamp.
Definition: pcm.c:1197
snd_pcm_hwsync
int snd_pcm_hwsync(snd_pcm_t *pcm)
(DEPRECATED) Synchronize stream position with hardware
Definition: pcm.c:1094
snd_pcm_scope_t
struct _snd_pcm_scope snd_pcm_scope_t
Definition: pcm.h:502
snd_pcm_set_params
int snd_pcm_set_params(snd_pcm_t *pcm, snd_pcm_format_t format, snd_pcm_access_t access, unsigned int channels, unsigned int rate, int soft_resample, unsigned int latency)
Set the hardware and software parameters in a simple way.
Definition: pcm.c:8605
snd_pcm_drain
int snd_pcm_drain(snd_pcm_t *pcm)
Stop a PCM preserving pending frames.
Definition: pcm.c:1345
snd_pcm_readi
snd_pcm_sframes_t snd_pcm_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size)
Read interleaved frames from a PCM.
Definition: pcm.c:1634
snd_async_handler_get_pcm
snd_pcm_t * snd_async_handler_get_pcm(snd_async_handler_t *handler)
Return PCM handle related to an async handler.
Definition: pcm.c:2490
snd_pcm_chmap_type_name
const char * snd_pcm_chmap_type_name(enum snd_pcm_chmap_type val)
Definition: pcm.c:8175
snd_pcm_avail
snd_pcm_sframes_t snd_pcm_avail(snd_pcm_t *pcm)
Return number of frames ready to be read (capture) / written (playback)
Definition: pcm.c:2980
snd_pcm_chmap_parse_string
snd_pcm_chmap_t * snd_pcm_chmap_parse_string(const char *str)
Definition: pcm.c:8366
snd_async_add_pcm_handler
int snd_async_add_pcm_handler(snd_async_handler_t **handler, snd_pcm_t *pcm, snd_async_callback_t callback, void *private_data)
Add an async handler for a PCM.
Definition: pcm.c:2460
snd_pcm_set_chmap
int snd_pcm_set_chmap(snd_pcm_t *pcm, const snd_pcm_chmap_t *map)
Definition: pcm.c:8144
snd_pcm_state_t
snd_pcm_state_t
Definition: pcm.h:291
snd_pcm_sw_params_current
int snd_pcm_sw_params_current(snd_pcm_t *pcm, snd_pcm_sw_params_t *params)
Return current software configuration for a PCM.
Definition: pcm.c:6178
snd_pcm_query_chmaps
snd_pcm_chmap_query_t ** snd_pcm_query_chmaps(snd_pcm_t *pcm)
Definition: pcm.c:8103
snd_pcm_hw_params_t
struct _snd_pcm_hw_params snd_pcm_hw_params_t
Definition: pcm.h:64
snd_pcm_access_t
snd_pcm_access_t
Definition: pcm.h:110
snd_pcm_xrun_t
snd_pcm_xrun_t
Definition: pcm.h:325
snd_pcm_name
const char * snd_pcm_name(snd_pcm_t *pcm)
get identifier of PCM handle
Definition: pcm.c:726
snd_pcm_tstamp_t
snd_pcm_tstamp_t
Definition: pcm.h:334
snd_pcm_subclass_t
snd_pcm_subclass_t
Definition: pcm.h:92
snd_pcm_start
int snd_pcm_start(snd_pcm_t *pcm)
Start a PCM.
Definition: pcm.c:1277
snd_pcm_rewind
snd_pcm_sframes_t snd_pcm_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames)
Move application frame position backward.
Definition: pcm.c:1442
snd_pcm_tstamp_type_t
snd_pcm_tstamp_type_t
Definition: pcm.h:346
snd_pcm_drop
int snd_pcm_drop(snd_pcm_t *pcm)
Stop a PCM dropping pending frames.
Definition: pcm.c:1308
snd_pcm_sframes_t
long snd_pcm_sframes_t
Definition: pcm.h:390
snd_pcm_poll_descriptors
int snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space)
get poll descriptors
Definition: pcm.c:1804
snd_pcm_prepare
int snd_pcm_prepare(snd_pcm_t *pcm)
Prepare PCM for use.
Definition: pcm.c:1222
snd_pcm_query_chmaps_from_hw
snd_pcm_chmap_query_t ** snd_pcm_query_chmaps_from_hw(int card, int dev, int subdev, snd_pcm_stream_t stream)
Definition: pcm_hw.c:1207
snd_pcm_info_t
struct _snd_pcm_info snd_pcm_info_t
Definition: pcm.h:48
snd_pcm_sw_params_t
struct _snd_pcm_sw_params snd_pcm_sw_params_t
Definition: pcm.h:67
snd_pcm_poll_descriptors_revents
int snd_pcm_poll_descriptors_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents)
get returned events from poll descriptors
Definition: pcm.c:1839
snd_pcm_access_mask_t
struct _snd_pcm_access_mask snd_pcm_access_mask_t
Definition: pcm.h:71
snd_pcm_open
int snd_pcm_open(snd_pcm_t **pcm, const char *name, snd_pcm_stream_t stream, int mode)
Opens a PCM.
Definition: pcm.c:2688
snd_pcm_state
snd_pcm_state_t snd_pcm_state(snd_pcm_t *pcm)
Return PCM state.
Definition: pcm.c:1070
snd_pcm_open_lconf
int snd_pcm_open_lconf(snd_pcm_t **pcm, const char *name, snd_pcm_stream_t stream, int mode, snd_config_t *lconf)
Opens a PCM using local configuration.
Definition: pcm.c:2718
snd_pcm_subformat_mask_t
struct _snd_pcm_subformat_mask snd_pcm_subformat_mask_t
Definition: pcm.h:75
snd_pcm_sw_params
int snd_pcm_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t *params)
Install PCM software configuration defined by params.
Definition: pcm.c:988
snd_pcm_avail_update
snd_pcm_sframes_t snd_pcm_avail_update(snd_pcm_t *pcm)
Return number of frames ready to be read (capture) / written (playback)
Definition: pcm.c:2956
snd_pcm_nonblock
int snd_pcm_nonblock(snd_pcm_t *pcm, int nonblock)
set nonblock mode
Definition: pcm.c:802
snd_pcm_stream
snd_pcm_stream_t snd_pcm_stream(snd_pcm_t *pcm)
get stream for a PCM handle
Definition: pcm.c:752
snd_pcm_status_t
struct _snd_pcm_status snd_pcm_status_t
Definition: pcm.h:69
snd_pcm_t
struct _snd_pcm snd_pcm_t
Definition: pcm.h:408
snd_pcm_format_t
snd_pcm_format_t
Definition: pcm.h:125
snd_pcm_forwardable
snd_pcm_sframes_t snd_pcm_forwardable(snd_pcm_t *pcm)
Get safe count of frames which can be forwarded.
Definition: pcm.c:1477
snd_pcm_type
snd_pcm_type_t snd_pcm_type(snd_pcm_t *pcm)
get type of PCM handle
Definition: pcm.c:739
snd_pcm_chmap_long_name
const char * snd_pcm_chmap_long_name(enum snd_pcm_chmap_position val)
Definition: pcm.c:8261
snd_pcm_uframes_t
unsigned long snd_pcm_uframes_t
Definition: pcm.h:388
snd_pcm_writei
snd_pcm_sframes_t snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size)
Write interleaved frames to a PCM.
Definition: pcm.c:1556
snd_pcm_get_chmap
snd_pcm_chmap_t * snd_pcm_get_chmap(snd_pcm_t *pcm)
Definition: pcm.c:8131
snd_pcm_stream_t
snd_pcm_stream_t
Definition: pcm.h:101
snd_pcm_link
int snd_pcm_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2)
Link two PCMs.
Definition: pcm.c:1701
snd_pcm_poll_descriptors_count
int snd_pcm_poll_descriptors_count(snd_pcm_t *pcm)
get count of poll descriptors for PCM handle
Definition: pcm.c:1746
snd_pcm_type_t
enum _snd_pcm_type snd_pcm_type_t
Definition: pcm.h:479
snd_pcm_forward
snd_pcm_sframes_t snd_pcm_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames)
Move application frame position forward.
Definition: pcm.c:1511
snd_pcm_class_t
snd_pcm_class_t
Definition: pcm.h:78
snd_pcm_chmap_from_string
unsigned int snd_pcm_chmap_from_string(const char *str)
Definition: pcm.c:8354
snd_pcm_wait
int snd_pcm_wait(snd_pcm_t *pcm, int timeout)
Wait for a PCM to become ready.
Definition: pcm.c:2846
snd_pcm_pause
int snd_pcm_pause(snd_pcm_t *pcm, int enable)
Pause/resume PCM.
Definition: pcm.c:1379
snd_pcm_chmap_type
snd_pcm_chmap_type
Definition: pcm.h:563
snd_pcm_info
int snd_pcm_info(snd_pcm_t *pcm, snd_pcm_info_t *info)
Obtain general (static) information for PCM handle.
Definition: pcm.c:872
snd_pcm_writen
snd_pcm_sframes_t snd_pcm_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size)
Write non interleaved frames to a PCM.
Definition: pcm.c:1595
snd_pcm_hw_params_current
int snd_pcm_hw_params_current(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
Retreive current PCM hardware configuration chosen with snd_pcm_hw_params.
Definition: pcm.c:889
snd_pcm_readn
snd_pcm_sframes_t snd_pcm_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size)
Read non interleaved frames to a PCM.
Definition: pcm.c:1673
SND_PCM_TYPE_DSHARE
@ SND_PCM_TYPE_DSHARE
Definition: pcm.h:464
SND_PCM_TYPE_HW
@ SND_PCM_TYPE_HW
Definition: pcm.h:413
SND_PCM_TYPE_DMIX
@ SND_PCM_TYPE_DMIX
Definition: pcm.h:458
SND_PCM_TYPE_NULL
@ SND_PCM_TYPE_NULL
Definition: pcm.h:422
SND_PCM_TYPE_MULAW
@ SND_PCM_TYPE_MULAW
Definition: pcm.h:434
SND_PCM_TYPE_ROUTE
@ SND_PCM_TYPE_ROUTE
Definition: pcm.h:440
SND_PCM_TYPE_HOOKS
@ SND_PCM_TYPE_HOOKS
Definition: pcm.h:415
SND_PCM_TYPE_LINEAR
@ SND_PCM_TYPE_LINEAR
Definition: pcm.h:430
SND_PCM_TYPE_INET
@ SND_PCM_TYPE_INET
Definition: pcm.h:426
SND_PCM_TYPE_JACK
@ SND_PCM_TYPE_JACK
Definition: pcm.h:460
SND_PCM_TYPE_METER
@ SND_PCM_TYPE_METER
Definition: pcm.h:446
SND_PCM_TYPE_DSNOOP
@ SND_PCM_TYPE_DSNOOP
Definition: pcm.h:462
SND_PCM_TYPE_MULTI
@ SND_PCM_TYPE_MULTI
Definition: pcm.h:418
SND_PCM_TYPE_FILE
@ SND_PCM_TYPE_FILE
Definition: pcm.h:420
SND_PCM_TYPE_SHARE
@ SND_PCM_TYPE_SHARE
Definition: pcm.h:444
SND_PCM_TYPE_SHM
@ SND_PCM_TYPE_SHM
Definition: pcm.h:424
SND_PCM_TYPE_SOFTVOL
@ SND_PCM_TYPE_SOFTVOL
Definition: pcm.h:468
SND_PCM_TYPE_LBSERVER
@ SND_PCM_TYPE_LBSERVER
Definition: pcm.h:452
SND_PCM_TYPE_EXTPLUG
@ SND_PCM_TYPE_EXTPLUG
Definition: pcm.h:472
SND_PCM_TYPE_ADPCM
@ SND_PCM_TYPE_ADPCM
Definition: pcm.h:436
SND_PCM_TYPE_MIX
@ SND_PCM_TYPE_MIX
Definition: pcm.h:448
SND_PCM_TYPE_MMAP_EMUL
@ SND_PCM_TYPE_MMAP_EMUL
Definition: pcm.h:474
SND_PCM_TYPE_IEC958
@ SND_PCM_TYPE_IEC958
Definition: pcm.h:466
SND_PCM_TYPE_ALAW
@ SND_PCM_TYPE_ALAW
Definition: pcm.h:432
SND_PCM_TYPE_DROUTE
@ SND_PCM_TYPE_DROUTE
Definition: pcm.h:450
SND_PCM_TYPE_RATE
@ SND_PCM_TYPE_RATE
Definition: pcm.h:438
SND_PCM_TYPE_IOPLUG
@ SND_PCM_TYPE_IOPLUG
Definition: pcm.h:470
SND_PCM_TYPE_PLUG
@ SND_PCM_TYPE_PLUG
Definition: pcm.h:442
SND_PCM_TYPE_COPY
@ SND_PCM_TYPE_COPY
Definition: pcm.h:428
SND_PCM_TYPE_LADSPA
@ SND_PCM_TYPE_LADSPA
Definition: pcm.h:456
SND_PCM_TYPE_LINEAR_FLOAT
@ SND_PCM_TYPE_LINEAR_FLOAT
Definition: pcm.h:454
SND_CHMAP_TSR
@ SND_CHMAP_TSR
Definition: pcm.h:604
SND_CHMAP_RRC
@ SND_CHMAP_RRC
Definition: pcm.h:588
SND_CHMAP_TFLC
@ SND_CHMAP_TFLC
Definition: pcm.h:601
SND_CHMAP_FLW
@ SND_CHMAP_FLW
Definition: pcm.h:589
SND_CHMAP_FLH
@ SND_CHMAP_FLH
Definition: pcm.h:591
SND_CHMAP_FR
@ SND_CHMAP_FR
Definition: pcm.h:577
SND_CHMAP_TFRC
@ SND_CHMAP_TFRC
Definition: pcm.h:602
SND_CHMAP_FC
@ SND_CHMAP_FC
Definition: pcm.h:580
SND_CHMAP_RR
@ SND_CHMAP_RR
Definition: pcm.h:579
SND_CHMAP_LFE
@ SND_CHMAP_LFE
Definition: pcm.h:581
SND_CHMAP_TSL
@ SND_CHMAP_TSL
Definition: pcm.h:603
SND_CHMAP_UNKNOWN
@ SND_CHMAP_UNKNOWN
Definition: pcm.h:573
SND_CHMAP_MONO
@ SND_CHMAP_MONO
Definition: pcm.h:575
SND_CHMAP_FL
@ SND_CHMAP_FL
Definition: pcm.h:576
SND_CHMAP_RLFE
@ SND_CHMAP_RLFE
Definition: pcm.h:606
SND_CHMAP_BLC
@ SND_CHMAP_BLC
Definition: pcm.h:608
SND_CHMAP_BC
@ SND_CHMAP_BC
Definition: pcm.h:607
SND_CHMAP_FRC
@ SND_CHMAP_FRC
Definition: pcm.h:586
SND_CHMAP_NA
@ SND_CHMAP_NA
Definition: pcm.h:574
SND_CHMAP_RLC
@ SND_CHMAP_RLC
Definition: pcm.h:587
SND_CHMAP_FRW
@ SND_CHMAP_FRW
Definition: pcm.h:590
SND_CHMAP_FLC
@ SND_CHMAP_FLC
Definition: pcm.h:585
SND_CHMAP_TFC
@ SND_CHMAP_TFC
Definition: pcm.h:597
SND_CHMAP_TRR
@ SND_CHMAP_TRR
Definition: pcm.h:599
SND_CHMAP_TRL
@ SND_CHMAP_TRL
Definition: pcm.h:598
SND_CHMAP_LLFE
@ SND_CHMAP_LLFE
Definition: pcm.h:605
SND_CHMAP_SR
@ SND_CHMAP_SR
Definition: pcm.h:583
SND_CHMAP_TRC
@ SND_CHMAP_TRC
Definition: pcm.h:600
SND_CHMAP_FCH
@ SND_CHMAP_FCH
Definition: pcm.h:592
SND_CHMAP_TFR
@ SND_CHMAP_TFR
Definition: pcm.h:596
SND_CHMAP_TFL
@ SND_CHMAP_TFL
Definition: pcm.h:595
SND_CHMAP_RC
@ SND_CHMAP_RC
Definition: pcm.h:584
SND_CHMAP_SL
@ SND_CHMAP_SL
Definition: pcm.h:582
SND_CHMAP_BRC
@ SND_CHMAP_BRC
Definition: pcm.h:609
SND_CHMAP_FRH
@ SND_CHMAP_FRH
Definition: pcm.h:593
SND_CHMAP_RL
@ SND_CHMAP_RL
Definition: pcm.h:578
SND_CHMAP_TC
@ SND_CHMAP_TC
Definition: pcm.h:594
SND_PCM_START_DATA
@ SND_PCM_START_DATA
Definition: pcm.h:318
SND_PCM_START_EXPLICIT
@ SND_PCM_START_EXPLICIT
Definition: pcm.h:320
SND_PCM_SUBFORMAT_STD
@ SND_PCM_SUBFORMAT_STD
Definition: pcm.h:286
SND_PCM_AUDIO_TSTAMP_TYPE_DEFAULT
@ SND_PCM_AUDIO_TSTAMP_TYPE_DEFAULT
Definition: pcm.h:359
SND_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED
@ SND_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED
Definition: pcm.h:362
SND_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
@ SND_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
Definition: pcm.h:363
SND_PCM_AUDIO_TSTAMP_TYPE_LINK
@ SND_PCM_AUDIO_TSTAMP_TYPE_LINK
Definition: pcm.h:360
SND_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE
@ SND_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE
Definition: pcm.h:361
SND_PCM_AUDIO_TSTAMP_TYPE_COMPAT
@ SND_PCM_AUDIO_TSTAMP_TYPE_COMPAT
Definition: pcm.h:358
SND_PCM_STATE_PREPARED
@ SND_PCM_STATE_PREPARED
Definition: pcm.h:297
SND_PCM_STATE_PRIVATE1
@ SND_PCM_STATE_PRIVATE1
Definition: pcm.h:312
SND_PCM_STATE_OPEN
@ SND_PCM_STATE_OPEN
Definition: pcm.h:293
SND_PCM_STATE_SETUP
@ SND_PCM_STATE_SETUP
Definition: pcm.h:295
SND_PCM_STATE_SUSPENDED
@ SND_PCM_STATE_SUSPENDED
Definition: pcm.h:307
SND_PCM_STATE_RUNNING
@ SND_PCM_STATE_RUNNING
Definition: pcm.h:299
SND_PCM_STATE_DRAINING
@ SND_PCM_STATE_DRAINING
Definition: pcm.h:303
SND_PCM_STATE_PAUSED
@ SND_PCM_STATE_PAUSED
Definition: pcm.h:305
SND_PCM_STATE_DISCONNECTED
@ SND_PCM_STATE_DISCONNECTED
Definition: pcm.h:309
SND_PCM_STATE_XRUN
@ SND_PCM_STATE_XRUN
Definition: pcm.h:301
SND_PCM_ACCESS_MMAP_COMPLEX
@ SND_PCM_ACCESS_MMAP_COMPLEX
Definition: pcm.h:116
SND_PCM_ACCESS_RW_INTERLEAVED
@ SND_PCM_ACCESS_RW_INTERLEAVED
Definition: pcm.h:118
SND_PCM_ACCESS_MMAP_NONINTERLEAVED
@ SND_PCM_ACCESS_MMAP_NONINTERLEAVED
Definition: pcm.h:114
SND_PCM_ACCESS_MMAP_INTERLEAVED
@ SND_PCM_ACCESS_MMAP_INTERLEAVED
Definition: pcm.h:112
SND_PCM_ACCESS_RW_NONINTERLEAVED
@ SND_PCM_ACCESS_RW_NONINTERLEAVED
Definition: pcm.h:120
SND_PCM_XRUN_NONE
@ SND_PCM_XRUN_NONE
Definition: pcm.h:327
SND_PCM_XRUN_STOP
@ SND_PCM_XRUN_STOP
Definition: pcm.h:329
SND_PCM_TSTAMP_MMAP
@ SND_PCM_TSTAMP_MMAP
Definition: pcm.h:342
SND_PCM_TSTAMP_ENABLE
@ SND_PCM_TSTAMP_ENABLE
Definition: pcm.h:338
SND_PCM_TSTAMP_NONE
@ SND_PCM_TSTAMP_NONE
Definition: pcm.h:336
SND_PCM_SUBCLASS_GENERIC_MIX
@ SND_PCM_SUBCLASS_GENERIC_MIX
Definition: pcm.h:94
SND_PCM_SUBCLASS_MULTI_MIX
@ SND_PCM_SUBCLASS_MULTI_MIX
Definition: pcm.h:96
SND_PCM_TSTAMP_TYPE_GETTIMEOFDAY
@ SND_PCM_TSTAMP_TYPE_GETTIMEOFDAY
Definition: pcm.h:347
SND_PCM_TSTAMP_TYPE_MONOTONIC
@ SND_PCM_TSTAMP_TYPE_MONOTONIC
Definition: pcm.h:348
SND_PCM_TSTAMP_TYPE_MONOTONIC_RAW
@ SND_PCM_TSTAMP_TYPE_MONOTONIC_RAW
Definition: pcm.h:349
SND_PCM_FORMAT_U16
@ SND_PCM_FORMAT_U16
Definition: pcm.h:236
SND_PCM_FORMAT_U24
@ SND_PCM_FORMAT_U24
Definition: pcm.h:240
SND_PCM_FORMAT_S24_LE
@ SND_PCM_FORMAT_S24_LE
Definition: pcm.h:141
SND_PCM_FORMAT_FLOAT_LE
@ SND_PCM_FORMAT_FLOAT_LE
Definition: pcm.h:157
SND_PCM_FORMAT_U18_3BE
@ SND_PCM_FORMAT_U18_3BE
Definition: pcm.h:211
SND_PCM_FORMAT_FLOAT64
@ SND_PCM_FORMAT_FLOAT64
Definition: pcm.h:248
SND_PCM_FORMAT_U20_3LE
@ SND_PCM_FORMAT_U20_3LE
Definition: pcm.h:201
SND_PCM_FORMAT_S20_3BE
@ SND_PCM_FORMAT_S20_3BE
Definition: pcm.h:199
SND_PCM_FORMAT_S20_BE
@ SND_PCM_FORMAT_S20_BE
Definition: pcm.h:181
SND_PCM_FORMAT_MU_LAW
@ SND_PCM_FORMAT_MU_LAW
Definition: pcm.h:169
SND_PCM_FORMAT_S24_3LE
@ SND_PCM_FORMAT_S24_3LE
Definition: pcm.h:189
SND_PCM_FORMAT_S24_BE
@ SND_PCM_FORMAT_S24_BE
Definition: pcm.h:143
SND_PCM_FORMAT_U24_3BE
@ SND_PCM_FORMAT_U24_3BE
Definition: pcm.h:195
SND_PCM_FORMAT_U24_BE
@ SND_PCM_FORMAT_U24_BE
Definition: pcm.h:147
SND_PCM_FORMAT_GSM
@ SND_PCM_FORMAT_GSM
Definition: pcm.h:177
SND_PCM_FORMAT_U24_LE
@ SND_PCM_FORMAT_U24_LE
Definition: pcm.h:145
SND_PCM_FORMAT_IEC958_SUBFRAME_BE
@ SND_PCM_FORMAT_IEC958_SUBFRAME_BE
Definition: pcm.h:167
SND_PCM_FORMAT_MPEG
@ SND_PCM_FORMAT_MPEG
Definition: pcm.h:175
SND_PCM_FORMAT_S20
@ SND_PCM_FORMAT_S20
Definition: pcm.h:252
SND_PCM_FORMAT_U18_3LE
@ SND_PCM_FORMAT_U18_3LE
Definition: pcm.h:209
SND_PCM_FORMAT_IEC958_SUBFRAME_LE
@ SND_PCM_FORMAT_IEC958_SUBFRAME_LE
Definition: pcm.h:165
SND_PCM_FORMAT_U32_LE
@ SND_PCM_FORMAT_U32_LE
Definition: pcm.h:153
SND_PCM_FORMAT_S24_3BE
@ SND_PCM_FORMAT_S24_3BE
Definition: pcm.h:191
SND_PCM_FORMAT_S8
@ SND_PCM_FORMAT_S8
Definition: pcm.h:129
SND_PCM_FORMAT_U24_3LE
@ SND_PCM_FORMAT_U24_3LE
Definition: pcm.h:193
SND_PCM_FORMAT_SPECIAL
@ SND_PCM_FORMAT_SPECIAL
Definition: pcm.h:187
SND_PCM_FORMAT_FLOAT
@ SND_PCM_FORMAT_FLOAT
Definition: pcm.h:246
SND_PCM_FORMAT_IEC958_SUBFRAME
@ SND_PCM_FORMAT_IEC958_SUBFRAME
Definition: pcm.h:250
SND_PCM_FORMAT_S18_3LE
@ SND_PCM_FORMAT_S18_3LE
Definition: pcm.h:205
SND_PCM_FORMAT_S16_LE
@ SND_PCM_FORMAT_S16_LE
Definition: pcm.h:133
SND_PCM_FORMAT_U20_3BE
@ SND_PCM_FORMAT_U20_3BE
Definition: pcm.h:203
SND_PCM_FORMAT_FLOAT64_LE
@ SND_PCM_FORMAT_FLOAT64_LE
Definition: pcm.h:161
SND_PCM_FORMAT_S20_3LE
@ SND_PCM_FORMAT_S20_3LE
Definition: pcm.h:197
SND_PCM_FORMAT_FLOAT64_BE
@ SND_PCM_FORMAT_FLOAT64_BE
Definition: pcm.h:163
SND_PCM_FORMAT_IMA_ADPCM
@ SND_PCM_FORMAT_IMA_ADPCM
Definition: pcm.h:173
SND_PCM_FORMAT_A_LAW
@ SND_PCM_FORMAT_A_LAW
Definition: pcm.h:171
SND_PCM_FORMAT_S16_BE
@ SND_PCM_FORMAT_S16_BE
Definition: pcm.h:135
SND_PCM_FORMAT_S32_LE
@ SND_PCM_FORMAT_S32_LE
Definition: pcm.h:149
SND_PCM_FORMAT_S16
@ SND_PCM_FORMAT_S16
Definition: pcm.h:234
SND_PCM_FORMAT_UNKNOWN
@ SND_PCM_FORMAT_UNKNOWN
Definition: pcm.h:127
SND_PCM_FORMAT_FLOAT_BE
@ SND_PCM_FORMAT_FLOAT_BE
Definition: pcm.h:159
SND_PCM_FORMAT_U16_LE
@ SND_PCM_FORMAT_U16_LE
Definition: pcm.h:137
SND_PCM_FORMAT_U32
@ SND_PCM_FORMAT_U32
Definition: pcm.h:244
SND_PCM_FORMAT_U20_BE
@ SND_PCM_FORMAT_U20_BE
Definition: pcm.h:185
SND_PCM_FORMAT_S32
@ SND_PCM_FORMAT_S32
Definition: pcm.h:242
SND_PCM_FORMAT_S20_LE
@ SND_PCM_FORMAT_S20_LE
Definition: pcm.h:179
SND_PCM_FORMAT_U32_BE
@ SND_PCM_FORMAT_U32_BE
Definition: pcm.h:155
SND_PCM_FORMAT_U20
@ SND_PCM_FORMAT_U20
Definition: pcm.h:254
SND_PCM_FORMAT_S24
@ SND_PCM_FORMAT_S24
Definition: pcm.h:238
SND_PCM_FORMAT_S32_BE
@ SND_PCM_FORMAT_S32_BE
Definition: pcm.h:151
SND_PCM_FORMAT_S18_3BE
@ SND_PCM_FORMAT_S18_3BE
Definition: pcm.h:207
SND_PCM_FORMAT_U8
@ SND_PCM_FORMAT_U8
Definition: pcm.h:131
SND_PCM_FORMAT_U16_BE
@ SND_PCM_FORMAT_U16_BE
Definition: pcm.h:139
SND_PCM_FORMAT_U20_LE
@ SND_PCM_FORMAT_U20_LE
Definition: pcm.h:183
SND_PCM_STREAM_PLAYBACK
@ SND_PCM_STREAM_PLAYBACK
Definition: pcm.h:103
SND_PCM_STREAM_CAPTURE
@ SND_PCM_STREAM_CAPTURE
Definition: pcm.h:105
SND_PCM_CLASS_MULTI
@ SND_PCM_CLASS_MULTI
Definition: pcm.h:83
SND_PCM_CLASS_GENERIC
@ SND_PCM_CLASS_GENERIC
Definition: pcm.h:81
SND_PCM_CLASS_DIGITIZER
@ SND_PCM_CLASS_DIGITIZER
Definition: pcm.h:87
SND_PCM_CLASS_MODEM
@ SND_PCM_CLASS_MODEM
Definition: pcm.h:85
SND_CHMAP_TYPE_NONE
@ SND_CHMAP_TYPE_NONE
Definition: pcm.h:564
SND_CHMAP_TYPE_LAST
@ SND_CHMAP_TYPE_LAST
Definition: pcm.h:568
SND_CHMAP_TYPE_FIXED
@ SND_CHMAP_TYPE_FIXED
Definition: pcm.h:565
SND_CHMAP_TYPE_VAR
@ SND_CHMAP_TYPE_VAR
Definition: pcm.h:566
SND_CHMAP_TYPE_PAIRED
@ SND_CHMAP_TYPE_PAIRED
Definition: pcm.h:567
ptr
void * ptr
Definition: seq_event.h:1
snd_pcm_audio_tstamp_config_t
Definition: pcm.h:367
snd_pcm_audio_tstamp_report_t
Definition: pcm.h:373
snd_pcm_channel_area_t
Definition: pcm.h:482
snd_pcm_channel_area_t::addr
void * addr
Definition: pcm.h:484
snd_pcm_channel_area_t::first
unsigned int first
Definition: pcm.h:486
snd_pcm_channel_area_t::step
unsigned int step
Definition: pcm.h:488
snd_pcm_chmap_query_t
Definition: pcm.h:628
snd_pcm_chmap_query_t::map
snd_pcm_chmap_t map
Definition: pcm.h:630
snd_pcm_chmap_query_t::type
enum snd_pcm_chmap_type type
Definition: pcm.h:629
snd_pcm_chmap_t
Definition: pcm.h:622
snd_pcm_chmap_t::channels
unsigned int channels
Definition: pcm.h:623
snd_pcm_scope_ops_t
Definition: pcm.h:1238
snd_pcm_sync_id_t
Definition: pcm.h:492