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/home/abuild/rpmbuild/BUILD/alsa-lib-1.0.24.1/include/pcm.h
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00001 00012 /* 00013 * This library is free software; you can redistribute it and/or modify 00014 * it under the terms of the GNU Lesser General Public License as 00015 * published by the Free Software Foundation; either version 2.1 of 00016 * the License, or (at your option) any later version. 00017 * 00018 * This program is distributed in the hope that it will be useful, 00019 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00020 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00021 * GNU Lesser General Public License for more details. 00022 * 00023 * You should have received a copy of the GNU Lesser General Public 00024 * License along with this library; if not, write to the Free Software 00025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00026 * 00027 */ 00028 00029 #ifndef __ALSA_PCM_H 00030 #define __ALSA_PCM_H 00031 00032 #ifdef __cplusplus 00033 extern "C" { 00034 #endif 00035 00043 #define SND_PCM_DLSYM_VERSION _dlsym_pcm_001 00044 00046 typedef struct _snd_pcm_info snd_pcm_info_t; 00048 typedef struct _snd_pcm_hw_params snd_pcm_hw_params_t; 00050 typedef struct _snd_pcm_sw_params snd_pcm_sw_params_t; 00052 typedef struct _snd_pcm_status snd_pcm_status_t; 00054 typedef struct _snd_pcm_access_mask snd_pcm_access_mask_t; 00056 typedef struct _snd_pcm_format_mask snd_pcm_format_mask_t; 00058 typedef struct _snd_pcm_subformat_mask snd_pcm_subformat_mask_t; 00059 00061 typedef enum _snd_pcm_class { 00064 SND_PCM_CLASS_GENERIC = 0, 00066 SND_PCM_CLASS_MULTI, 00068 SND_PCM_CLASS_MODEM, 00070 SND_PCM_CLASS_DIGITIZER, 00071 SND_PCM_CLASS_LAST = SND_PCM_CLASS_DIGITIZER 00072 } snd_pcm_class_t; 00073 00075 typedef enum _snd_pcm_subclass { 00077 SND_PCM_SUBCLASS_GENERIC_MIX = 0, 00079 SND_PCM_SUBCLASS_MULTI_MIX, 00080 SND_PCM_SUBCLASS_LAST = SND_PCM_SUBCLASS_MULTI_MIX 00081 } snd_pcm_subclass_t; 00082 00084 typedef enum _snd_pcm_stream { 00086 SND_PCM_STREAM_PLAYBACK = 0, 00088 SND_PCM_STREAM_CAPTURE, 00089 SND_PCM_STREAM_LAST = SND_PCM_STREAM_CAPTURE 00090 } snd_pcm_stream_t; 00091 00093 typedef enum _snd_pcm_access { 00095 SND_PCM_ACCESS_MMAP_INTERLEAVED = 0, 00097 SND_PCM_ACCESS_MMAP_NONINTERLEAVED, 00099 SND_PCM_ACCESS_MMAP_COMPLEX, 00101 SND_PCM_ACCESS_RW_INTERLEAVED, 00103 SND_PCM_ACCESS_RW_NONINTERLEAVED, 00104 SND_PCM_ACCESS_LAST = SND_PCM_ACCESS_RW_NONINTERLEAVED 00105 } snd_pcm_access_t; 00106 00108 typedef enum _snd_pcm_format { 00110 SND_PCM_FORMAT_UNKNOWN = -1, 00112 SND_PCM_FORMAT_S8 = 0, 00114 SND_PCM_FORMAT_U8, 00116 SND_PCM_FORMAT_S16_LE, 00118 SND_PCM_FORMAT_S16_BE, 00120 SND_PCM_FORMAT_U16_LE, 00122 SND_PCM_FORMAT_U16_BE, 00124 SND_PCM_FORMAT_S24_LE, 00126 SND_PCM_FORMAT_S24_BE, 00128 SND_PCM_FORMAT_U24_LE, 00130 SND_PCM_FORMAT_U24_BE, 00132 SND_PCM_FORMAT_S32_LE, 00134 SND_PCM_FORMAT_S32_BE, 00136 SND_PCM_FORMAT_U32_LE, 00138 SND_PCM_FORMAT_U32_BE, 00140 SND_PCM_FORMAT_FLOAT_LE, 00142 SND_PCM_FORMAT_FLOAT_BE, 00144 SND_PCM_FORMAT_FLOAT64_LE, 00146 SND_PCM_FORMAT_FLOAT64_BE, 00148 SND_PCM_FORMAT_IEC958_SUBFRAME_LE, 00150 SND_PCM_FORMAT_IEC958_SUBFRAME_BE, 00152 SND_PCM_FORMAT_MU_LAW, 00154 SND_PCM_FORMAT_A_LAW, 00156 SND_PCM_FORMAT_IMA_ADPCM, 00158 SND_PCM_FORMAT_MPEG, 00160 SND_PCM_FORMAT_GSM, 00162 SND_PCM_FORMAT_SPECIAL = 31, 00164 SND_PCM_FORMAT_S24_3LE = 32, 00166 SND_PCM_FORMAT_S24_3BE, 00168 SND_PCM_FORMAT_U24_3LE, 00170 SND_PCM_FORMAT_U24_3BE, 00172 SND_PCM_FORMAT_S20_3LE, 00174 SND_PCM_FORMAT_S20_3BE, 00176 SND_PCM_FORMAT_U20_3LE, 00178 SND_PCM_FORMAT_U20_3BE, 00180 SND_PCM_FORMAT_S18_3LE, 00182 SND_PCM_FORMAT_S18_3BE, 00184 SND_PCM_FORMAT_U18_3LE, 00186 SND_PCM_FORMAT_U18_3BE, 00187 SND_PCM_FORMAT_LAST = SND_PCM_FORMAT_U18_3BE, 00188 00189 #if __BYTE_ORDER == __LITTLE_ENDIAN 00190 00191 SND_PCM_FORMAT_S16 = SND_PCM_FORMAT_S16_LE, 00193 SND_PCM_FORMAT_U16 = SND_PCM_FORMAT_U16_LE, 00195 SND_PCM_FORMAT_S24 = SND_PCM_FORMAT_S24_LE, 00197 SND_PCM_FORMAT_U24 = SND_PCM_FORMAT_U24_LE, 00199 SND_PCM_FORMAT_S32 = SND_PCM_FORMAT_S32_LE, 00201 SND_PCM_FORMAT_U32 = SND_PCM_FORMAT_U32_LE, 00203 SND_PCM_FORMAT_FLOAT = SND_PCM_FORMAT_FLOAT_LE, 00205 SND_PCM_FORMAT_FLOAT64 = SND_PCM_FORMAT_FLOAT64_LE, 00207 SND_PCM_FORMAT_IEC958_SUBFRAME = SND_PCM_FORMAT_IEC958_SUBFRAME_LE 00208 #elif __BYTE_ORDER == __BIG_ENDIAN 00209 00210 SND_PCM_FORMAT_S16 = SND_PCM_FORMAT_S16_BE, 00212 SND_PCM_FORMAT_U16 = SND_PCM_FORMAT_U16_BE, 00214 SND_PCM_FORMAT_S24 = SND_PCM_FORMAT_S24_BE, 00216 SND_PCM_FORMAT_U24 = SND_PCM_FORMAT_U24_BE, 00218 SND_PCM_FORMAT_S32 = SND_PCM_FORMAT_S32_BE, 00220 SND_PCM_FORMAT_U32 = SND_PCM_FORMAT_U32_BE, 00222 SND_PCM_FORMAT_FLOAT = SND_PCM_FORMAT_FLOAT_BE, 00224 SND_PCM_FORMAT_FLOAT64 = SND_PCM_FORMAT_FLOAT64_BE, 00226 SND_PCM_FORMAT_IEC958_SUBFRAME = SND_PCM_FORMAT_IEC958_SUBFRAME_BE 00227 #else 00228 #error "Unknown endian" 00229 #endif 00230 } snd_pcm_format_t; 00231 00233 typedef enum _snd_pcm_subformat { 00235 SND_PCM_SUBFORMAT_STD = 0, 00236 SND_PCM_SUBFORMAT_LAST = SND_PCM_SUBFORMAT_STD 00237 } snd_pcm_subformat_t; 00238 00240 typedef enum _snd_pcm_state { 00242 SND_PCM_STATE_OPEN = 0, 00244 SND_PCM_STATE_SETUP, 00246 SND_PCM_STATE_PREPARED, 00248 SND_PCM_STATE_RUNNING, 00250 SND_PCM_STATE_XRUN, 00252 SND_PCM_STATE_DRAINING, 00254 SND_PCM_STATE_PAUSED, 00256 SND_PCM_STATE_SUSPENDED, 00258 SND_PCM_STATE_DISCONNECTED, 00259 SND_PCM_STATE_LAST = SND_PCM_STATE_DISCONNECTED 00260 } snd_pcm_state_t; 00261 00263 typedef enum _snd_pcm_start { 00265 SND_PCM_START_DATA = 0, 00267 SND_PCM_START_EXPLICIT, 00268 SND_PCM_START_LAST = SND_PCM_START_EXPLICIT 00269 } snd_pcm_start_t; 00270 00272 typedef enum _snd_pcm_xrun { 00274 SND_PCM_XRUN_NONE = 0, 00276 SND_PCM_XRUN_STOP, 00277 SND_PCM_XRUN_LAST = SND_PCM_XRUN_STOP 00278 } snd_pcm_xrun_t; 00279 00281 typedef enum _snd_pcm_tstamp { 00283 SND_PCM_TSTAMP_NONE = 0, 00285 SND_PCM_TSTAMP_ENABLE, 00289 SND_PCM_TSTAMP_MMAP = SND_PCM_TSTAMP_ENABLE, 00290 SND_PCM_TSTAMP_LAST = SND_PCM_TSTAMP_ENABLE 00291 } snd_pcm_tstamp_t; 00292 00294 typedef unsigned long snd_pcm_uframes_t; 00296 typedef long snd_pcm_sframes_t; 00297 00299 #define SND_PCM_NONBLOCK 0x00000001 00300 00301 #define SND_PCM_ASYNC 0x00000002 00302 00303 #define SND_PCM_NO_AUTO_RESAMPLE 0x00010000 00304 00305 #define SND_PCM_NO_AUTO_CHANNELS 0x00020000 00306 00307 #define SND_PCM_NO_AUTO_FORMAT 0x00040000 00308 00309 #define SND_PCM_NO_SOFTVOL 0x00080000 00310 00312 typedef struct _snd_pcm snd_pcm_t; 00313 00315 enum _snd_pcm_type { 00317 SND_PCM_TYPE_HW = 0, 00319 SND_PCM_TYPE_HOOKS, 00322 SND_PCM_TYPE_MULTI, 00324 SND_PCM_TYPE_FILE, 00326 SND_PCM_TYPE_NULL, 00328 SND_PCM_TYPE_SHM, 00330 SND_PCM_TYPE_INET, 00332 SND_PCM_TYPE_COPY, 00334 SND_PCM_TYPE_LINEAR, 00336 SND_PCM_TYPE_ALAW, 00338 SND_PCM_TYPE_MULAW, 00340 SND_PCM_TYPE_ADPCM, 00342 SND_PCM_TYPE_RATE, 00344 SND_PCM_TYPE_ROUTE, 00346 SND_PCM_TYPE_PLUG, 00348 SND_PCM_TYPE_SHARE, 00350 SND_PCM_TYPE_METER, 00352 SND_PCM_TYPE_MIX, 00354 SND_PCM_TYPE_DROUTE, 00356 SND_PCM_TYPE_LBSERVER, 00358 SND_PCM_TYPE_LINEAR_FLOAT, 00360 SND_PCM_TYPE_LADSPA, 00362 SND_PCM_TYPE_DMIX, 00364 SND_PCM_TYPE_JACK, 00366 SND_PCM_TYPE_DSNOOP, 00368 SND_PCM_TYPE_DSHARE, 00370 SND_PCM_TYPE_IEC958, 00372 SND_PCM_TYPE_SOFTVOL, 00374 SND_PCM_TYPE_IOPLUG, 00376 SND_PCM_TYPE_EXTPLUG, 00378 SND_PCM_TYPE_MMAP_EMUL, 00379 SND_PCM_TYPE_LAST = SND_PCM_TYPE_MMAP_EMUL 00380 }; 00381 00383 typedef enum _snd_pcm_type snd_pcm_type_t; 00384 00386 typedef struct _snd_pcm_channel_area { 00388 void *addr; 00390 unsigned int first; 00392 unsigned int step; 00393 } snd_pcm_channel_area_t; 00394 00396 typedef union _snd_pcm_sync_id { 00398 unsigned char id[16]; 00400 unsigned short id16[8]; 00402 unsigned int id32[4]; 00403 } snd_pcm_sync_id_t; 00404 00406 typedef struct _snd_pcm_scope snd_pcm_scope_t; 00407 00408 int snd_pcm_open(snd_pcm_t **pcm, const char *name, 00409 snd_pcm_stream_t stream, int mode); 00410 int snd_pcm_open_lconf(snd_pcm_t **pcm, const char *name, 00411 snd_pcm_stream_t stream, int mode, 00412 snd_config_t *lconf); 00413 int snd_pcm_open_fallback(snd_pcm_t **pcm, snd_config_t *root, 00414 const char *name, const char *orig_name, 00415 snd_pcm_stream_t stream, int mode); 00416 00417 int snd_pcm_close(snd_pcm_t *pcm); 00418 const char *snd_pcm_name(snd_pcm_t *pcm); 00419 snd_pcm_type_t snd_pcm_type(snd_pcm_t *pcm); 00420 snd_pcm_stream_t snd_pcm_stream(snd_pcm_t *pcm); 00421 int snd_pcm_poll_descriptors_count(snd_pcm_t *pcm); 00422 int snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space); 00423 int snd_pcm_poll_descriptors_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents); 00424 int snd_pcm_nonblock(snd_pcm_t *pcm, int nonblock); 00425 int snd_async_add_pcm_handler(snd_async_handler_t **handler, snd_pcm_t *pcm, 00426 snd_async_callback_t callback, void *private_data); 00427 snd_pcm_t *snd_async_handler_get_pcm(snd_async_handler_t *handler); 00428 int snd_pcm_info(snd_pcm_t *pcm, snd_pcm_info_t *info); 00429 int snd_pcm_hw_params_current(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00430 int snd_pcm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00431 int snd_pcm_hw_free(snd_pcm_t *pcm); 00432 int snd_pcm_sw_params_current(snd_pcm_t *pcm, snd_pcm_sw_params_t *params); 00433 int snd_pcm_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t *params); 00434 int snd_pcm_prepare(snd_pcm_t *pcm); 00435 int snd_pcm_reset(snd_pcm_t *pcm); 00436 int snd_pcm_status(snd_pcm_t *pcm, snd_pcm_status_t *status); 00437 int snd_pcm_start(snd_pcm_t *pcm); 00438 int snd_pcm_drop(snd_pcm_t *pcm); 00439 int snd_pcm_drain(snd_pcm_t *pcm); 00440 int snd_pcm_pause(snd_pcm_t *pcm, int enable); 00441 snd_pcm_state_t snd_pcm_state(snd_pcm_t *pcm); 00442 int snd_pcm_hwsync(snd_pcm_t *pcm); 00443 int snd_pcm_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp); 00444 int snd_pcm_resume(snd_pcm_t *pcm); 00445 int snd_pcm_htimestamp(snd_pcm_t *pcm, snd_pcm_uframes_t *avail, snd_htimestamp_t *tstamp); 00446 snd_pcm_sframes_t snd_pcm_avail(snd_pcm_t *pcm); 00447 snd_pcm_sframes_t snd_pcm_avail_update(snd_pcm_t *pcm); 00448 int snd_pcm_avail_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *availp, snd_pcm_sframes_t *delayp); 00449 snd_pcm_sframes_t snd_pcm_rewindable(snd_pcm_t *pcm); 00450 snd_pcm_sframes_t snd_pcm_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames); 00451 snd_pcm_sframes_t snd_pcm_forwardable(snd_pcm_t *pcm); 00452 snd_pcm_sframes_t snd_pcm_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames); 00453 snd_pcm_sframes_t snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size); 00454 snd_pcm_sframes_t snd_pcm_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size); 00455 snd_pcm_sframes_t snd_pcm_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 00456 snd_pcm_sframes_t snd_pcm_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 00457 int snd_pcm_wait(snd_pcm_t *pcm, int timeout); 00458 00459 int snd_pcm_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2); 00460 int snd_pcm_unlink(snd_pcm_t *pcm); 00461 00462 //int snd_pcm_mixer_element(snd_pcm_t *pcm, snd_mixer_t *mixer, snd_mixer_elem_t **elem); 00463 00464 /* 00465 * application helpers - these functions are implemented on top 00466 * of the basic API 00467 */ 00468 00469 int snd_pcm_recover(snd_pcm_t *pcm, int err, int silent); 00470 int snd_pcm_set_params(snd_pcm_t *pcm, 00471 snd_pcm_format_t format, 00472 snd_pcm_access_t access, 00473 unsigned int channels, 00474 unsigned int rate, 00475 int soft_resample, 00476 unsigned int latency); 00477 int snd_pcm_get_params(snd_pcm_t *pcm, 00478 snd_pcm_uframes_t *buffer_size, 00479 snd_pcm_uframes_t *period_size); 00480 00490 size_t snd_pcm_info_sizeof(void); 00495 #define snd_pcm_info_alloca(ptr) __snd_alloca(ptr, snd_pcm_info) 00496 int snd_pcm_info_malloc(snd_pcm_info_t **ptr); 00497 void snd_pcm_info_free(snd_pcm_info_t *obj); 00498 void snd_pcm_info_copy(snd_pcm_info_t *dst, const snd_pcm_info_t *src); 00499 unsigned int snd_pcm_info_get_device(const snd_pcm_info_t *obj); 00500 unsigned int snd_pcm_info_get_subdevice(const snd_pcm_info_t *obj); 00501 snd_pcm_stream_t snd_pcm_info_get_stream(const snd_pcm_info_t *obj); 00502 int snd_pcm_info_get_card(const snd_pcm_info_t *obj); 00503 const char *snd_pcm_info_get_id(const snd_pcm_info_t *obj); 00504 const char *snd_pcm_info_get_name(const snd_pcm_info_t *obj); 00505 const char *snd_pcm_info_get_subdevice_name(const snd_pcm_info_t *obj); 00506 snd_pcm_class_t snd_pcm_info_get_class(const snd_pcm_info_t *obj); 00507 snd_pcm_subclass_t snd_pcm_info_get_subclass(const snd_pcm_info_t *obj); 00508 unsigned int snd_pcm_info_get_subdevices_count(const snd_pcm_info_t *obj); 00509 unsigned int snd_pcm_info_get_subdevices_avail(const snd_pcm_info_t *obj); 00510 snd_pcm_sync_id_t snd_pcm_info_get_sync(const snd_pcm_info_t *obj); 00511 void snd_pcm_info_set_device(snd_pcm_info_t *obj, unsigned int val); 00512 void snd_pcm_info_set_subdevice(snd_pcm_info_t *obj, unsigned int val); 00513 void snd_pcm_info_set_stream(snd_pcm_info_t *obj, snd_pcm_stream_t val); 00514 00524 int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00525 00526 int snd_pcm_hw_params_can_mmap_sample_resolution(const snd_pcm_hw_params_t *params); 00527 int snd_pcm_hw_params_is_double(const snd_pcm_hw_params_t *params); 00528 int snd_pcm_hw_params_is_batch(const snd_pcm_hw_params_t *params); 00529 int snd_pcm_hw_params_is_block_transfer(const snd_pcm_hw_params_t *params); 00530 int snd_pcm_hw_params_is_monotonic(const snd_pcm_hw_params_t *params); 00531 int snd_pcm_hw_params_can_overrange(const snd_pcm_hw_params_t *params); 00532 int snd_pcm_hw_params_can_pause(const snd_pcm_hw_params_t *params); 00533 int snd_pcm_hw_params_can_resume(const snd_pcm_hw_params_t *params); 00534 int snd_pcm_hw_params_is_half_duplex(const snd_pcm_hw_params_t *params); 00535 int snd_pcm_hw_params_is_joint_duplex(const snd_pcm_hw_params_t *params); 00536 int snd_pcm_hw_params_can_sync_start(const snd_pcm_hw_params_t *params); 00537 int snd_pcm_hw_params_can_disable_period_wakeup(const snd_pcm_hw_params_t *params); 00538 int snd_pcm_hw_params_get_rate_numden(const snd_pcm_hw_params_t *params, 00539 unsigned int *rate_num, 00540 unsigned int *rate_den); 00541 int snd_pcm_hw_params_get_sbits(const snd_pcm_hw_params_t *params); 00542 int snd_pcm_hw_params_get_fifo_size(const snd_pcm_hw_params_t *params); 00543 00544 #if 0 00545 typedef struct _snd_pcm_hw_strategy snd_pcm_hw_strategy_t; 00546 00547 /* choices need to be sorted on ascending badness */ 00548 typedef struct _snd_pcm_hw_strategy_simple_choices_list { 00549 unsigned int value; 00550 unsigned int badness; 00551 } snd_pcm_hw_strategy_simple_choices_list_t; 00552 00553 int snd_pcm_hw_params_strategy(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, 00554 const snd_pcm_hw_strategy_t *strategy, 00555 unsigned int badness_min, 00556 unsigned int badness_max); 00557 00558 void snd_pcm_hw_strategy_free(snd_pcm_hw_strategy_t *strategy); 00559 int snd_pcm_hw_strategy_simple(snd_pcm_hw_strategy_t **strategyp, 00560 unsigned int badness_min, 00561 unsigned int badness_max); 00562 int snd_pcm_hw_params_try_explain_failure(snd_pcm_t *pcm, 00563 snd_pcm_hw_params_t *fail, 00564 snd_pcm_hw_params_t *success, 00565 unsigned int depth, 00566 snd_output_t *out); 00567 00568 #endif 00569 00570 size_t snd_pcm_hw_params_sizeof(void); 00575 #define snd_pcm_hw_params_alloca(ptr) __snd_alloca(ptr, snd_pcm_hw_params) 00576 int snd_pcm_hw_params_malloc(snd_pcm_hw_params_t **ptr); 00577 void snd_pcm_hw_params_free(snd_pcm_hw_params_t *obj); 00578 void snd_pcm_hw_params_copy(snd_pcm_hw_params_t *dst, const snd_pcm_hw_params_t *src); 00579 00580 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_HW_PARAMS_API) 00581 00582 int snd_pcm_hw_params_get_access(const snd_pcm_hw_params_t *params, snd_pcm_access_t *_access); 00583 int snd_pcm_hw_params_test_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access); 00584 int snd_pcm_hw_params_set_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access); 00585 int snd_pcm_hw_params_set_access_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access); 00586 int snd_pcm_hw_params_set_access_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access); 00587 int snd_pcm_hw_params_set_access_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask); 00588 int snd_pcm_hw_params_get_access_mask(snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask); 00589 00590 int snd_pcm_hw_params_get_format(const snd_pcm_hw_params_t *params, snd_pcm_format_t *val); 00591 int snd_pcm_hw_params_test_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val); 00592 int snd_pcm_hw_params_set_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val); 00593 int snd_pcm_hw_params_set_format_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format); 00594 int snd_pcm_hw_params_set_format_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format); 00595 int snd_pcm_hw_params_set_format_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask); 00596 void snd_pcm_hw_params_get_format_mask(snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask); 00597 00598 int snd_pcm_hw_params_get_subformat(const snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat); 00599 int snd_pcm_hw_params_test_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat); 00600 int snd_pcm_hw_params_set_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat); 00601 int snd_pcm_hw_params_set_subformat_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat); 00602 int snd_pcm_hw_params_set_subformat_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat); 00603 int snd_pcm_hw_params_set_subformat_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask); 00604 void snd_pcm_hw_params_get_subformat_mask(snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask); 00605 00606 int snd_pcm_hw_params_get_channels(const snd_pcm_hw_params_t *params, unsigned int *val); 00607 int snd_pcm_hw_params_get_channels_min(const snd_pcm_hw_params_t *params, unsigned int *val); 00608 int snd_pcm_hw_params_get_channels_max(const snd_pcm_hw_params_t *params, unsigned int *val); 00609 int snd_pcm_hw_params_test_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00610 int snd_pcm_hw_params_set_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00611 int snd_pcm_hw_params_set_channels_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00612 int snd_pcm_hw_params_set_channels_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00613 int snd_pcm_hw_params_set_channels_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, unsigned int *max); 00614 int snd_pcm_hw_params_set_channels_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00615 int snd_pcm_hw_params_set_channels_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00616 int snd_pcm_hw_params_set_channels_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00617 00618 int snd_pcm_hw_params_get_rate(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00619 int snd_pcm_hw_params_get_rate_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00620 int snd_pcm_hw_params_get_rate_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00621 int snd_pcm_hw_params_test_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00622 int snd_pcm_hw_params_set_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00623 int snd_pcm_hw_params_set_rate_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00624 int snd_pcm_hw_params_set_rate_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00625 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); 00626 int snd_pcm_hw_params_set_rate_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00627 int snd_pcm_hw_params_set_rate_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00628 int snd_pcm_hw_params_set_rate_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00629 int snd_pcm_hw_params_set_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00630 int snd_pcm_hw_params_get_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00631 int snd_pcm_hw_params_set_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00632 int snd_pcm_hw_params_get_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00633 int snd_pcm_hw_params_set_period_wakeup(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00634 int snd_pcm_hw_params_get_period_wakeup(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00635 00636 int snd_pcm_hw_params_get_period_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00637 int snd_pcm_hw_params_get_period_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00638 int snd_pcm_hw_params_get_period_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00639 int snd_pcm_hw_params_test_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00640 int snd_pcm_hw_params_set_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00641 int snd_pcm_hw_params_set_period_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00642 int snd_pcm_hw_params_set_period_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00643 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); 00644 int snd_pcm_hw_params_set_period_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00645 int snd_pcm_hw_params_set_period_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00646 int snd_pcm_hw_params_set_period_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00647 00648 int snd_pcm_hw_params_get_period_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir); 00649 int snd_pcm_hw_params_get_period_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir); 00650 int snd_pcm_hw_params_get_period_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir); 00651 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); 00652 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); 00653 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); 00654 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); 00655 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); 00656 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); 00657 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); 00658 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); 00659 int snd_pcm_hw_params_set_period_size_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00660 00661 int snd_pcm_hw_params_get_periods(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00662 int snd_pcm_hw_params_get_periods_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00663 int snd_pcm_hw_params_get_periods_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00664 int snd_pcm_hw_params_test_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00665 int snd_pcm_hw_params_set_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00666 int snd_pcm_hw_params_set_periods_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00667 int snd_pcm_hw_params_set_periods_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00668 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); 00669 int snd_pcm_hw_params_set_periods_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00670 int snd_pcm_hw_params_set_periods_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00671 int snd_pcm_hw_params_set_periods_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00672 int snd_pcm_hw_params_set_periods_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00673 00674 int snd_pcm_hw_params_get_buffer_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00675 int snd_pcm_hw_params_get_buffer_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00676 int snd_pcm_hw_params_get_buffer_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00677 int snd_pcm_hw_params_test_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00678 int snd_pcm_hw_params_set_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00679 int snd_pcm_hw_params_set_buffer_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00680 int snd_pcm_hw_params_set_buffer_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00681 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); 00682 int snd_pcm_hw_params_set_buffer_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00683 int snd_pcm_hw_params_set_buffer_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00684 int snd_pcm_hw_params_set_buffer_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00685 00686 int snd_pcm_hw_params_get_buffer_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00687 int snd_pcm_hw_params_get_buffer_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00688 int snd_pcm_hw_params_get_buffer_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00689 int snd_pcm_hw_params_test_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val); 00690 int snd_pcm_hw_params_set_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val); 00691 int snd_pcm_hw_params_set_buffer_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00692 int snd_pcm_hw_params_set_buffer_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00693 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); 00694 int snd_pcm_hw_params_set_buffer_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00695 int snd_pcm_hw_params_set_buffer_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00696 int snd_pcm_hw_params_set_buffer_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00697 00698 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_HW_PARAMS_API */ 00699 00700 int snd_pcm_hw_params_get_min_align(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00701 00711 size_t snd_pcm_sw_params_sizeof(void); 00716 #define snd_pcm_sw_params_alloca(ptr) __snd_alloca(ptr, snd_pcm_sw_params) 00717 int snd_pcm_sw_params_malloc(snd_pcm_sw_params_t **ptr); 00718 void snd_pcm_sw_params_free(snd_pcm_sw_params_t *obj); 00719 void snd_pcm_sw_params_copy(snd_pcm_sw_params_t *dst, const snd_pcm_sw_params_t *src); 00720 int snd_pcm_sw_params_get_boundary(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00721 00722 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_SW_PARAMS_API) 00723 00724 int snd_pcm_sw_params_set_tstamp_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_t val); 00725 int snd_pcm_sw_params_get_tstamp_mode(const snd_pcm_sw_params_t *params, snd_pcm_tstamp_t *val); 00726 int snd_pcm_sw_params_set_avail_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00727 int snd_pcm_sw_params_get_avail_min(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00728 int snd_pcm_sw_params_set_period_event(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, int val); 00729 int snd_pcm_sw_params_get_period_event(const snd_pcm_sw_params_t *params, int *val); 00730 int snd_pcm_sw_params_set_start_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00731 int snd_pcm_sw_params_get_start_threshold(const snd_pcm_sw_params_t *paramsm, snd_pcm_uframes_t *val); 00732 int snd_pcm_sw_params_set_stop_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00733 int snd_pcm_sw_params_get_stop_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00734 int snd_pcm_sw_params_set_silence_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00735 int snd_pcm_sw_params_get_silence_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00736 int snd_pcm_sw_params_set_silence_size(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00737 int snd_pcm_sw_params_get_silence_size(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00738 00739 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_SW_PARAMS_API */ 00740 00743 /* include old API */ 00744 #ifndef ALSA_LIBRARY_BUILD 00745 #if defined(ALSA_PCM_OLD_HW_PARAMS_API) || defined(ALSA_PCM_OLD_SW_PARAMS_API) 00746 #include "pcm_old.h" 00747 #endif 00748 #endif 00749 00757 size_t snd_pcm_access_mask_sizeof(void); 00762 #define snd_pcm_access_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_access_mask) 00763 int snd_pcm_access_mask_malloc(snd_pcm_access_mask_t **ptr); 00764 void snd_pcm_access_mask_free(snd_pcm_access_mask_t *obj); 00765 void snd_pcm_access_mask_copy(snd_pcm_access_mask_t *dst, const snd_pcm_access_mask_t *src); 00766 void snd_pcm_access_mask_none(snd_pcm_access_mask_t *mask); 00767 void snd_pcm_access_mask_any(snd_pcm_access_mask_t *mask); 00768 int snd_pcm_access_mask_test(const snd_pcm_access_mask_t *mask, snd_pcm_access_t val); 00769 int snd_pcm_access_mask_empty(const snd_pcm_access_mask_t *mask); 00770 void snd_pcm_access_mask_set(snd_pcm_access_mask_t *mask, snd_pcm_access_t val); 00771 void snd_pcm_access_mask_reset(snd_pcm_access_mask_t *mask, snd_pcm_access_t val); 00772 00782 size_t snd_pcm_format_mask_sizeof(void); 00787 #define snd_pcm_format_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_format_mask) 00788 int snd_pcm_format_mask_malloc(snd_pcm_format_mask_t **ptr); 00789 void snd_pcm_format_mask_free(snd_pcm_format_mask_t *obj); 00790 void snd_pcm_format_mask_copy(snd_pcm_format_mask_t *dst, const snd_pcm_format_mask_t *src); 00791 void snd_pcm_format_mask_none(snd_pcm_format_mask_t *mask); 00792 void snd_pcm_format_mask_any(snd_pcm_format_mask_t *mask); 00793 int snd_pcm_format_mask_test(const snd_pcm_format_mask_t *mask, snd_pcm_format_t val); 00794 int snd_pcm_format_mask_empty(const snd_pcm_format_mask_t *mask); 00795 void snd_pcm_format_mask_set(snd_pcm_format_mask_t *mask, snd_pcm_format_t val); 00796 void snd_pcm_format_mask_reset(snd_pcm_format_mask_t *mask, snd_pcm_format_t val); 00797 00807 size_t snd_pcm_subformat_mask_sizeof(void); 00812 #define snd_pcm_subformat_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_subformat_mask) 00813 int snd_pcm_subformat_mask_malloc(snd_pcm_subformat_mask_t **ptr); 00814 void snd_pcm_subformat_mask_free(snd_pcm_subformat_mask_t *obj); 00815 void snd_pcm_subformat_mask_copy(snd_pcm_subformat_mask_t *dst, const snd_pcm_subformat_mask_t *src); 00816 void snd_pcm_subformat_mask_none(snd_pcm_subformat_mask_t *mask); 00817 void snd_pcm_subformat_mask_any(snd_pcm_subformat_mask_t *mask); 00818 int snd_pcm_subformat_mask_test(const snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val); 00819 int snd_pcm_subformat_mask_empty(const snd_pcm_subformat_mask_t *mask); 00820 void snd_pcm_subformat_mask_set(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val); 00821 void snd_pcm_subformat_mask_reset(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val); 00822 00832 size_t snd_pcm_status_sizeof(void); 00837 #define snd_pcm_status_alloca(ptr) __snd_alloca(ptr, snd_pcm_status) 00838 int snd_pcm_status_malloc(snd_pcm_status_t **ptr); 00839 void snd_pcm_status_free(snd_pcm_status_t *obj); 00840 void snd_pcm_status_copy(snd_pcm_status_t *dst, const snd_pcm_status_t *src); 00841 snd_pcm_state_t snd_pcm_status_get_state(const snd_pcm_status_t *obj); 00842 void snd_pcm_status_get_trigger_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr); 00843 void snd_pcm_status_get_trigger_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr); 00844 void snd_pcm_status_get_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr); 00845 void snd_pcm_status_get_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr); 00846 snd_pcm_sframes_t snd_pcm_status_get_delay(const snd_pcm_status_t *obj); 00847 snd_pcm_uframes_t snd_pcm_status_get_avail(const snd_pcm_status_t *obj); 00848 snd_pcm_uframes_t snd_pcm_status_get_avail_max(const snd_pcm_status_t *obj); 00849 snd_pcm_uframes_t snd_pcm_status_get_overrange(const snd_pcm_status_t *obj); 00850 00860 const char *snd_pcm_type_name(snd_pcm_type_t type); 00861 const char *snd_pcm_stream_name(const snd_pcm_stream_t stream); 00862 const char *snd_pcm_access_name(const snd_pcm_access_t _access); 00863 const char *snd_pcm_format_name(const snd_pcm_format_t format); 00864 const char *snd_pcm_format_description(const snd_pcm_format_t format); 00865 const char *snd_pcm_subformat_name(const snd_pcm_subformat_t subformat); 00866 const char *snd_pcm_subformat_description(const snd_pcm_subformat_t subformat); 00867 snd_pcm_format_t snd_pcm_format_value(const char* name); 00868 const char *snd_pcm_tstamp_mode_name(const snd_pcm_tstamp_t mode); 00869 const char *snd_pcm_state_name(const snd_pcm_state_t state); 00870 00880 int snd_pcm_dump(snd_pcm_t *pcm, snd_output_t *out); 00881 int snd_pcm_dump_hw_setup(snd_pcm_t *pcm, snd_output_t *out); 00882 int snd_pcm_dump_sw_setup(snd_pcm_t *pcm, snd_output_t *out); 00883 int snd_pcm_dump_setup(snd_pcm_t *pcm, snd_output_t *out); 00884 int snd_pcm_hw_params_dump(snd_pcm_hw_params_t *params, snd_output_t *out); 00885 int snd_pcm_sw_params_dump(snd_pcm_sw_params_t *params, snd_output_t *out); 00886 int snd_pcm_status_dump(snd_pcm_status_t *status, snd_output_t *out); 00887 00897 int snd_pcm_mmap_begin(snd_pcm_t *pcm, 00898 const snd_pcm_channel_area_t **areas, 00899 snd_pcm_uframes_t *offset, 00900 snd_pcm_uframes_t *frames); 00901 snd_pcm_sframes_t snd_pcm_mmap_commit(snd_pcm_t *pcm, 00902 snd_pcm_uframes_t offset, 00903 snd_pcm_uframes_t frames); 00904 snd_pcm_sframes_t snd_pcm_mmap_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size); 00905 snd_pcm_sframes_t snd_pcm_mmap_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size); 00906 snd_pcm_sframes_t snd_pcm_mmap_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 00907 snd_pcm_sframes_t snd_pcm_mmap_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 00908 00918 int snd_pcm_format_signed(snd_pcm_format_t format); 00919 int snd_pcm_format_unsigned(snd_pcm_format_t format); 00920 int snd_pcm_format_linear(snd_pcm_format_t format); 00921 int snd_pcm_format_float(snd_pcm_format_t format); 00922 int snd_pcm_format_little_endian(snd_pcm_format_t format); 00923 int snd_pcm_format_big_endian(snd_pcm_format_t format); 00924 int snd_pcm_format_cpu_endian(snd_pcm_format_t format); 00925 int snd_pcm_format_width(snd_pcm_format_t format); /* in bits */ 00926 int snd_pcm_format_physical_width(snd_pcm_format_t format); /* in bits */ 00927 snd_pcm_format_t snd_pcm_build_linear_format(int width, int pwidth, int unsignd, int big_endian); 00928 ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples); 00929 u_int8_t snd_pcm_format_silence(snd_pcm_format_t format); 00930 u_int16_t snd_pcm_format_silence_16(snd_pcm_format_t format); 00931 u_int32_t snd_pcm_format_silence_32(snd_pcm_format_t format); 00932 u_int64_t snd_pcm_format_silence_64(snd_pcm_format_t format); 00933 int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int samples); 00934 00935 snd_pcm_sframes_t snd_pcm_bytes_to_frames(snd_pcm_t *pcm, ssize_t bytes); 00936 ssize_t snd_pcm_frames_to_bytes(snd_pcm_t *pcm, snd_pcm_sframes_t frames); 00937 long snd_pcm_bytes_to_samples(snd_pcm_t *pcm, ssize_t bytes); 00938 ssize_t snd_pcm_samples_to_bytes(snd_pcm_t *pcm, long samples); 00939 00940 int snd_pcm_area_silence(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset, 00941 unsigned int samples, snd_pcm_format_t format); 00942 int snd_pcm_areas_silence(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, 00943 unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format); 00944 int snd_pcm_area_copy(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset, 00945 const snd_pcm_channel_area_t *src_channel, snd_pcm_uframes_t src_offset, 00946 unsigned int samples, snd_pcm_format_t format); 00947 int snd_pcm_areas_copy(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, 00948 const snd_pcm_channel_area_t *src_channels, snd_pcm_uframes_t src_offset, 00949 unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format); 00950 00961 typedef enum _snd_pcm_hook_type { 00962 SND_PCM_HOOK_TYPE_HW_PARAMS = 0, 00963 SND_PCM_HOOK_TYPE_HW_FREE, 00964 SND_PCM_HOOK_TYPE_CLOSE, 00965 SND_PCM_HOOK_TYPE_LAST = SND_PCM_HOOK_TYPE_CLOSE 00966 } snd_pcm_hook_type_t; 00967 00969 typedef struct _snd_pcm_hook snd_pcm_hook_t; 00971 typedef int (*snd_pcm_hook_func_t)(snd_pcm_hook_t *hook); 00972 snd_pcm_t *snd_pcm_hook_get_pcm(snd_pcm_hook_t *hook); 00973 void *snd_pcm_hook_get_private(snd_pcm_hook_t *hook); 00974 void snd_pcm_hook_set_private(snd_pcm_hook_t *hook, void *private_data); 00975 int snd_pcm_hook_add(snd_pcm_hook_t **hookp, snd_pcm_t *pcm, 00976 snd_pcm_hook_type_t type, 00977 snd_pcm_hook_func_t func, void *private_data); 00978 int snd_pcm_hook_remove(snd_pcm_hook_t *hook); 00979 00990 typedef struct _snd_pcm_scope_ops { 00994 int (*enable)(snd_pcm_scope_t *scope); 00998 void (*disable)(snd_pcm_scope_t *scope); 01002 void (*start)(snd_pcm_scope_t *scope); 01006 void (*stop)(snd_pcm_scope_t *scope); 01010 void (*update)(snd_pcm_scope_t *scope); 01014 void (*reset)(snd_pcm_scope_t *scope); 01018 void (*close)(snd_pcm_scope_t *scope); 01019 } snd_pcm_scope_ops_t; 01020 01021 snd_pcm_uframes_t snd_pcm_meter_get_bufsize(snd_pcm_t *pcm); 01022 unsigned int snd_pcm_meter_get_channels(snd_pcm_t *pcm); 01023 unsigned int snd_pcm_meter_get_rate(snd_pcm_t *pcm); 01024 snd_pcm_uframes_t snd_pcm_meter_get_now(snd_pcm_t *pcm); 01025 snd_pcm_uframes_t snd_pcm_meter_get_boundary(snd_pcm_t *pcm); 01026 int snd_pcm_meter_add_scope(snd_pcm_t *pcm, snd_pcm_scope_t *scope); 01027 snd_pcm_scope_t *snd_pcm_meter_search_scope(snd_pcm_t *pcm, const char *name); 01028 int snd_pcm_scope_malloc(snd_pcm_scope_t **ptr); 01029 void snd_pcm_scope_set_ops(snd_pcm_scope_t *scope, 01030 const snd_pcm_scope_ops_t *val); 01031 void snd_pcm_scope_set_name(snd_pcm_scope_t *scope, const char *val); 01032 const char *snd_pcm_scope_get_name(snd_pcm_scope_t *scope); 01033 void *snd_pcm_scope_get_callback_private(snd_pcm_scope_t *scope); 01034 void snd_pcm_scope_set_callback_private(snd_pcm_scope_t *scope, void *val); 01035 int snd_pcm_scope_s16_open(snd_pcm_t *pcm, const char *name, 01036 snd_pcm_scope_t **scopep); 01037 int16_t *snd_pcm_scope_s16_get_channel_buffer(snd_pcm_scope_t *scope, 01038 unsigned int channel); 01039 01050 typedef enum _snd_spcm_latency { 01053 SND_SPCM_LATENCY_STANDARD = 0, 01056 SND_SPCM_LATENCY_MEDIUM, 01059 SND_SPCM_LATENCY_REALTIME 01060 } snd_spcm_latency_t; 01061 01063 typedef enum _snd_spcm_xrun_type { 01065 SND_SPCM_XRUN_IGNORE = 0, 01067 SND_SPCM_XRUN_STOP 01068 } snd_spcm_xrun_type_t; 01069 01071 typedef enum _snd_spcm_duplex_type { 01073 SND_SPCM_DUPLEX_LIBERAL = 0, 01075 SND_SPCM_DUPLEX_PEDANTIC 01076 } snd_spcm_duplex_type_t; 01077 01078 int snd_spcm_init(snd_pcm_t *pcm, 01079 unsigned int rate, 01080 unsigned int channels, 01081 snd_pcm_format_t format, 01082 snd_pcm_subformat_t subformat, 01083 snd_spcm_latency_t latency, 01084 snd_pcm_access_t _access, 01085 snd_spcm_xrun_type_t xrun_type); 01086 01087 int snd_spcm_init_duplex(snd_pcm_t *playback_pcm, 01088 snd_pcm_t *capture_pcm, 01089 unsigned int rate, 01090 unsigned int channels, 01091 snd_pcm_format_t format, 01092 snd_pcm_subformat_t subformat, 01093 snd_spcm_latency_t latency, 01094 snd_pcm_access_t _access, 01095 snd_spcm_xrun_type_t xrun_type, 01096 snd_spcm_duplex_type_t duplex_type); 01097 01098 int snd_spcm_init_get_params(snd_pcm_t *pcm, 01099 unsigned int *rate, 01100 snd_pcm_uframes_t *buffer_size, 01101 snd_pcm_uframes_t *period_size); 01102 01112 /* Deprecated functions, for compatibility */ 01113 const char *snd_pcm_start_mode_name(snd_pcm_start_t mode) __attribute__((deprecated)); 01114 const char *snd_pcm_xrun_mode_name(snd_pcm_xrun_t mode) __attribute__((deprecated)); 01115 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)); 01116 snd_pcm_start_t snd_pcm_sw_params_get_start_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated)); 01117 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)); 01118 snd_pcm_xrun_t snd_pcm_sw_params_get_xrun_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated)); 01119 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_SW_PARAMS_API) 01120 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)); 01121 int snd_pcm_sw_params_get_xfer_align(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__((deprecated)); 01122 int snd_pcm_sw_params_set_sleep_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, unsigned int val) __attribute__((deprecated)); 01123 int snd_pcm_sw_params_get_sleep_min(const snd_pcm_sw_params_t *params, unsigned int *val) __attribute__((deprecated)); 01124 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_SW_PARAMS_API */ 01125 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_HW_PARAMS_API) 01126 int snd_pcm_hw_params_get_tick_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01127 int snd_pcm_hw_params_get_tick_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01128 int snd_pcm_hw_params_get_tick_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01129 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)); 01130 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)); 01131 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)); 01132 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)); 01133 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)); 01134 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)); 01135 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)); 01136 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)); 01137 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_HW_PARAMS_API */ 01138 01141 #ifdef __cplusplus 01142 } 01143 #endif 01144 01145 #endif /* __ALSA_PCM_H */
