ALSA project - the C library reference
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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; 00047 00062 typedef struct _snd_pcm_hw_params snd_pcm_hw_params_t; 00063 00065 typedef struct _snd_pcm_sw_params snd_pcm_sw_params_t; 00067 typedef struct _snd_pcm_status snd_pcm_status_t; 00069 typedef struct _snd_pcm_access_mask snd_pcm_access_mask_t; 00071 typedef struct _snd_pcm_format_mask snd_pcm_format_mask_t; 00073 typedef struct _snd_pcm_subformat_mask snd_pcm_subformat_mask_t; 00074 00076 typedef enum _snd_pcm_class { 00079 SND_PCM_CLASS_GENERIC = 0, 00081 SND_PCM_CLASS_MULTI, 00083 SND_PCM_CLASS_MODEM, 00085 SND_PCM_CLASS_DIGITIZER, 00086 SND_PCM_CLASS_LAST = SND_PCM_CLASS_DIGITIZER 00087 } snd_pcm_class_t; 00088 00090 typedef enum _snd_pcm_subclass { 00092 SND_PCM_SUBCLASS_GENERIC_MIX = 0, 00094 SND_PCM_SUBCLASS_MULTI_MIX, 00095 SND_PCM_SUBCLASS_LAST = SND_PCM_SUBCLASS_MULTI_MIX 00096 } snd_pcm_subclass_t; 00097 00099 typedef enum _snd_pcm_stream { 00101 SND_PCM_STREAM_PLAYBACK = 0, 00103 SND_PCM_STREAM_CAPTURE, 00104 SND_PCM_STREAM_LAST = SND_PCM_STREAM_CAPTURE 00105 } snd_pcm_stream_t; 00106 00108 typedef enum _snd_pcm_access { 00110 SND_PCM_ACCESS_MMAP_INTERLEAVED = 0, 00112 SND_PCM_ACCESS_MMAP_NONINTERLEAVED, 00114 SND_PCM_ACCESS_MMAP_COMPLEX, 00116 SND_PCM_ACCESS_RW_INTERLEAVED, 00118 SND_PCM_ACCESS_RW_NONINTERLEAVED, 00119 SND_PCM_ACCESS_LAST = SND_PCM_ACCESS_RW_NONINTERLEAVED 00120 } snd_pcm_access_t; 00121 00123 typedef enum _snd_pcm_format { 00125 SND_PCM_FORMAT_UNKNOWN = -1, 00127 SND_PCM_FORMAT_S8 = 0, 00129 SND_PCM_FORMAT_U8, 00131 SND_PCM_FORMAT_S16_LE, 00133 SND_PCM_FORMAT_S16_BE, 00135 SND_PCM_FORMAT_U16_LE, 00137 SND_PCM_FORMAT_U16_BE, 00139 SND_PCM_FORMAT_S24_LE, 00141 SND_PCM_FORMAT_S24_BE, 00143 SND_PCM_FORMAT_U24_LE, 00145 SND_PCM_FORMAT_U24_BE, 00147 SND_PCM_FORMAT_S32_LE, 00149 SND_PCM_FORMAT_S32_BE, 00151 SND_PCM_FORMAT_U32_LE, 00153 SND_PCM_FORMAT_U32_BE, 00155 SND_PCM_FORMAT_FLOAT_LE, 00157 SND_PCM_FORMAT_FLOAT_BE, 00159 SND_PCM_FORMAT_FLOAT64_LE, 00161 SND_PCM_FORMAT_FLOAT64_BE, 00163 SND_PCM_FORMAT_IEC958_SUBFRAME_LE, 00165 SND_PCM_FORMAT_IEC958_SUBFRAME_BE, 00167 SND_PCM_FORMAT_MU_LAW, 00169 SND_PCM_FORMAT_A_LAW, 00171 SND_PCM_FORMAT_IMA_ADPCM, 00173 SND_PCM_FORMAT_MPEG, 00175 SND_PCM_FORMAT_GSM, 00177 SND_PCM_FORMAT_SPECIAL = 31, 00179 SND_PCM_FORMAT_S24_3LE = 32, 00181 SND_PCM_FORMAT_S24_3BE, 00183 SND_PCM_FORMAT_U24_3LE, 00185 SND_PCM_FORMAT_U24_3BE, 00187 SND_PCM_FORMAT_S20_3LE, 00189 SND_PCM_FORMAT_S20_3BE, 00191 SND_PCM_FORMAT_U20_3LE, 00193 SND_PCM_FORMAT_U20_3BE, 00195 SND_PCM_FORMAT_S18_3LE, 00197 SND_PCM_FORMAT_S18_3BE, 00199 SND_PCM_FORMAT_U18_3LE, 00201 SND_PCM_FORMAT_U18_3BE, 00202 SND_PCM_FORMAT_LAST = SND_PCM_FORMAT_U18_3BE, 00203 00204 #if __BYTE_ORDER == __LITTLE_ENDIAN 00205 00206 SND_PCM_FORMAT_S16 = SND_PCM_FORMAT_S16_LE, 00208 SND_PCM_FORMAT_U16 = SND_PCM_FORMAT_U16_LE, 00210 SND_PCM_FORMAT_S24 = SND_PCM_FORMAT_S24_LE, 00212 SND_PCM_FORMAT_U24 = SND_PCM_FORMAT_U24_LE, 00214 SND_PCM_FORMAT_S32 = SND_PCM_FORMAT_S32_LE, 00216 SND_PCM_FORMAT_U32 = SND_PCM_FORMAT_U32_LE, 00218 SND_PCM_FORMAT_FLOAT = SND_PCM_FORMAT_FLOAT_LE, 00220 SND_PCM_FORMAT_FLOAT64 = SND_PCM_FORMAT_FLOAT64_LE, 00222 SND_PCM_FORMAT_IEC958_SUBFRAME = SND_PCM_FORMAT_IEC958_SUBFRAME_LE 00223 #elif __BYTE_ORDER == __BIG_ENDIAN 00224 00225 SND_PCM_FORMAT_S16 = SND_PCM_FORMAT_S16_BE, 00227 SND_PCM_FORMAT_U16 = SND_PCM_FORMAT_U16_BE, 00229 SND_PCM_FORMAT_S24 = SND_PCM_FORMAT_S24_BE, 00231 SND_PCM_FORMAT_U24 = SND_PCM_FORMAT_U24_BE, 00233 SND_PCM_FORMAT_S32 = SND_PCM_FORMAT_S32_BE, 00235 SND_PCM_FORMAT_U32 = SND_PCM_FORMAT_U32_BE, 00237 SND_PCM_FORMAT_FLOAT = SND_PCM_FORMAT_FLOAT_BE, 00239 SND_PCM_FORMAT_FLOAT64 = SND_PCM_FORMAT_FLOAT64_BE, 00241 SND_PCM_FORMAT_IEC958_SUBFRAME = SND_PCM_FORMAT_IEC958_SUBFRAME_BE 00242 #else 00243 #error "Unknown endian" 00244 #endif 00245 } snd_pcm_format_t; 00246 00248 typedef enum _snd_pcm_subformat { 00250 SND_PCM_SUBFORMAT_STD = 0, 00251 SND_PCM_SUBFORMAT_LAST = SND_PCM_SUBFORMAT_STD 00252 } snd_pcm_subformat_t; 00253 00255 typedef enum _snd_pcm_state { 00257 SND_PCM_STATE_OPEN = 0, 00259 SND_PCM_STATE_SETUP, 00261 SND_PCM_STATE_PREPARED, 00263 SND_PCM_STATE_RUNNING, 00265 SND_PCM_STATE_XRUN, 00267 SND_PCM_STATE_DRAINING, 00269 SND_PCM_STATE_PAUSED, 00271 SND_PCM_STATE_SUSPENDED, 00273 SND_PCM_STATE_DISCONNECTED, 00274 SND_PCM_STATE_LAST = SND_PCM_STATE_DISCONNECTED 00275 } snd_pcm_state_t; 00276 00278 typedef enum _snd_pcm_start { 00280 SND_PCM_START_DATA = 0, 00282 SND_PCM_START_EXPLICIT, 00283 SND_PCM_START_LAST = SND_PCM_START_EXPLICIT 00284 } snd_pcm_start_t; 00285 00287 typedef enum _snd_pcm_xrun { 00289 SND_PCM_XRUN_NONE = 0, 00291 SND_PCM_XRUN_STOP, 00292 SND_PCM_XRUN_LAST = SND_PCM_XRUN_STOP 00293 } snd_pcm_xrun_t; 00294 00296 typedef enum _snd_pcm_tstamp { 00298 SND_PCM_TSTAMP_NONE = 0, 00300 SND_PCM_TSTAMP_ENABLE, 00304 SND_PCM_TSTAMP_MMAP = SND_PCM_TSTAMP_ENABLE, 00305 SND_PCM_TSTAMP_LAST = SND_PCM_TSTAMP_ENABLE 00306 } snd_pcm_tstamp_t; 00307 00309 typedef unsigned long snd_pcm_uframes_t; 00311 typedef long snd_pcm_sframes_t; 00312 00314 #define SND_PCM_NONBLOCK 0x00000001 00315 00316 #define SND_PCM_ASYNC 0x00000002 00317 00318 #define SND_PCM_NO_AUTO_RESAMPLE 0x00010000 00319 00320 #define SND_PCM_NO_AUTO_CHANNELS 0x00020000 00321 00322 #define SND_PCM_NO_AUTO_FORMAT 0x00040000 00323 00324 #define SND_PCM_NO_SOFTVOL 0x00080000 00325 00327 typedef struct _snd_pcm snd_pcm_t; 00328 00330 enum _snd_pcm_type { 00332 SND_PCM_TYPE_HW = 0, 00334 SND_PCM_TYPE_HOOKS, 00337 SND_PCM_TYPE_MULTI, 00339 SND_PCM_TYPE_FILE, 00341 SND_PCM_TYPE_NULL, 00343 SND_PCM_TYPE_SHM, 00345 SND_PCM_TYPE_INET, 00347 SND_PCM_TYPE_COPY, 00349 SND_PCM_TYPE_LINEAR, 00351 SND_PCM_TYPE_ALAW, 00353 SND_PCM_TYPE_MULAW, 00355 SND_PCM_TYPE_ADPCM, 00357 SND_PCM_TYPE_RATE, 00359 SND_PCM_TYPE_ROUTE, 00361 SND_PCM_TYPE_PLUG, 00363 SND_PCM_TYPE_SHARE, 00365 SND_PCM_TYPE_METER, 00367 SND_PCM_TYPE_MIX, 00369 SND_PCM_TYPE_DROUTE, 00371 SND_PCM_TYPE_LBSERVER, 00373 SND_PCM_TYPE_LINEAR_FLOAT, 00375 SND_PCM_TYPE_LADSPA, 00377 SND_PCM_TYPE_DMIX, 00379 SND_PCM_TYPE_JACK, 00381 SND_PCM_TYPE_DSNOOP, 00383 SND_PCM_TYPE_DSHARE, 00385 SND_PCM_TYPE_IEC958, 00387 SND_PCM_TYPE_SOFTVOL, 00389 SND_PCM_TYPE_IOPLUG, 00391 SND_PCM_TYPE_EXTPLUG, 00393 SND_PCM_TYPE_MMAP_EMUL, 00394 SND_PCM_TYPE_LAST = SND_PCM_TYPE_MMAP_EMUL 00395 }; 00396 00398 typedef enum _snd_pcm_type snd_pcm_type_t; 00399 00401 typedef struct _snd_pcm_channel_area { 00403 void *addr; 00405 unsigned int first; 00407 unsigned int step; 00408 } snd_pcm_channel_area_t; 00409 00411 typedef union _snd_pcm_sync_id { 00413 unsigned char id[16]; 00415 unsigned short id16[8]; 00417 unsigned int id32[4]; 00418 } snd_pcm_sync_id_t; 00419 00421 typedef struct _snd_pcm_scope snd_pcm_scope_t; 00422 00423 int snd_pcm_open(snd_pcm_t **pcm, const char *name, 00424 snd_pcm_stream_t stream, int mode); 00425 int snd_pcm_open_lconf(snd_pcm_t **pcm, const char *name, 00426 snd_pcm_stream_t stream, int mode, 00427 snd_config_t *lconf); 00428 int snd_pcm_open_fallback(snd_pcm_t **pcm, snd_config_t *root, 00429 const char *name, const char *orig_name, 00430 snd_pcm_stream_t stream, int mode); 00431 00432 int snd_pcm_close(snd_pcm_t *pcm); 00433 const char *snd_pcm_name(snd_pcm_t *pcm); 00434 snd_pcm_type_t snd_pcm_type(snd_pcm_t *pcm); 00435 snd_pcm_stream_t snd_pcm_stream(snd_pcm_t *pcm); 00436 int snd_pcm_poll_descriptors_count(snd_pcm_t *pcm); 00437 int snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space); 00438 int snd_pcm_poll_descriptors_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents); 00439 int snd_pcm_nonblock(snd_pcm_t *pcm, int nonblock); 00440 int snd_async_add_pcm_handler(snd_async_handler_t **handler, snd_pcm_t *pcm, 00441 snd_async_callback_t callback, void *private_data); 00442 snd_pcm_t *snd_async_handler_get_pcm(snd_async_handler_t *handler); 00443 int snd_pcm_info(snd_pcm_t *pcm, snd_pcm_info_t *info); 00444 int snd_pcm_hw_params_current(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00445 int snd_pcm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00446 int snd_pcm_hw_free(snd_pcm_t *pcm); 00447 int snd_pcm_sw_params_current(snd_pcm_t *pcm, snd_pcm_sw_params_t *params); 00448 int snd_pcm_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t *params); 00449 int snd_pcm_prepare(snd_pcm_t *pcm); 00450 int snd_pcm_reset(snd_pcm_t *pcm); 00451 int snd_pcm_status(snd_pcm_t *pcm, snd_pcm_status_t *status); 00452 int snd_pcm_start(snd_pcm_t *pcm); 00453 int snd_pcm_drop(snd_pcm_t *pcm); 00454 int snd_pcm_drain(snd_pcm_t *pcm); 00455 int snd_pcm_pause(snd_pcm_t *pcm, int enable); 00456 snd_pcm_state_t snd_pcm_state(snd_pcm_t *pcm); 00457 int snd_pcm_hwsync(snd_pcm_t *pcm); 00458 int snd_pcm_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp); 00459 int snd_pcm_resume(snd_pcm_t *pcm); 00460 int snd_pcm_htimestamp(snd_pcm_t *pcm, snd_pcm_uframes_t *avail, snd_htimestamp_t *tstamp); 00461 snd_pcm_sframes_t snd_pcm_avail(snd_pcm_t *pcm); 00462 snd_pcm_sframes_t snd_pcm_avail_update(snd_pcm_t *pcm); 00463 int snd_pcm_avail_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *availp, snd_pcm_sframes_t *delayp); 00464 snd_pcm_sframes_t snd_pcm_rewindable(snd_pcm_t *pcm); 00465 snd_pcm_sframes_t snd_pcm_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames); 00466 snd_pcm_sframes_t snd_pcm_forwardable(snd_pcm_t *pcm); 00467 snd_pcm_sframes_t snd_pcm_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames); 00468 snd_pcm_sframes_t snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size); 00469 snd_pcm_sframes_t snd_pcm_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size); 00470 snd_pcm_sframes_t snd_pcm_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 00471 snd_pcm_sframes_t snd_pcm_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 00472 int snd_pcm_wait(snd_pcm_t *pcm, int timeout); 00473 00474 int snd_pcm_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2); 00475 int snd_pcm_unlink(snd_pcm_t *pcm); 00476 00477 //int snd_pcm_mixer_element(snd_pcm_t *pcm, snd_mixer_t *mixer, snd_mixer_elem_t **elem); 00478 00479 /* 00480 * application helpers - these functions are implemented on top 00481 * of the basic API 00482 */ 00483 00484 int snd_pcm_recover(snd_pcm_t *pcm, int err, int silent); 00485 int snd_pcm_set_params(snd_pcm_t *pcm, 00486 snd_pcm_format_t format, 00487 snd_pcm_access_t access, 00488 unsigned int channels, 00489 unsigned int rate, 00490 int soft_resample, 00491 unsigned int latency); 00492 int snd_pcm_get_params(snd_pcm_t *pcm, 00493 snd_pcm_uframes_t *buffer_size, 00494 snd_pcm_uframes_t *period_size); 00495 00505 size_t snd_pcm_info_sizeof(void); 00510 #define snd_pcm_info_alloca(ptr) __snd_alloca(ptr, snd_pcm_info) 00511 int snd_pcm_info_malloc(snd_pcm_info_t **ptr); 00512 void snd_pcm_info_free(snd_pcm_info_t *obj); 00513 void snd_pcm_info_copy(snd_pcm_info_t *dst, const snd_pcm_info_t *src); 00514 unsigned int snd_pcm_info_get_device(const snd_pcm_info_t *obj); 00515 unsigned int snd_pcm_info_get_subdevice(const snd_pcm_info_t *obj); 00516 snd_pcm_stream_t snd_pcm_info_get_stream(const snd_pcm_info_t *obj); 00517 int snd_pcm_info_get_card(const snd_pcm_info_t *obj); 00518 const char *snd_pcm_info_get_id(const snd_pcm_info_t *obj); 00519 const char *snd_pcm_info_get_name(const snd_pcm_info_t *obj); 00520 const char *snd_pcm_info_get_subdevice_name(const snd_pcm_info_t *obj); 00521 snd_pcm_class_t snd_pcm_info_get_class(const snd_pcm_info_t *obj); 00522 snd_pcm_subclass_t snd_pcm_info_get_subclass(const snd_pcm_info_t *obj); 00523 unsigned int snd_pcm_info_get_subdevices_count(const snd_pcm_info_t *obj); 00524 unsigned int snd_pcm_info_get_subdevices_avail(const snd_pcm_info_t *obj); 00525 snd_pcm_sync_id_t snd_pcm_info_get_sync(const snd_pcm_info_t *obj); 00526 void snd_pcm_info_set_device(snd_pcm_info_t *obj, unsigned int val); 00527 void snd_pcm_info_set_subdevice(snd_pcm_info_t *obj, unsigned int val); 00528 void snd_pcm_info_set_stream(snd_pcm_info_t *obj, snd_pcm_stream_t val); 00529 00539 int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00540 00541 int snd_pcm_hw_params_can_mmap_sample_resolution(const snd_pcm_hw_params_t *params); 00542 int snd_pcm_hw_params_is_double(const snd_pcm_hw_params_t *params); 00543 int snd_pcm_hw_params_is_batch(const snd_pcm_hw_params_t *params); 00544 int snd_pcm_hw_params_is_block_transfer(const snd_pcm_hw_params_t *params); 00545 int snd_pcm_hw_params_is_monotonic(const snd_pcm_hw_params_t *params); 00546 int snd_pcm_hw_params_can_overrange(const snd_pcm_hw_params_t *params); 00547 int snd_pcm_hw_params_can_pause(const snd_pcm_hw_params_t *params); 00548 int snd_pcm_hw_params_can_resume(const snd_pcm_hw_params_t *params); 00549 int snd_pcm_hw_params_is_half_duplex(const snd_pcm_hw_params_t *params); 00550 int snd_pcm_hw_params_is_joint_duplex(const snd_pcm_hw_params_t *params); 00551 int snd_pcm_hw_params_can_sync_start(const snd_pcm_hw_params_t *params); 00552 int snd_pcm_hw_params_can_disable_period_wakeup(const snd_pcm_hw_params_t *params); 00553 int snd_pcm_hw_params_get_rate_numden(const snd_pcm_hw_params_t *params, 00554 unsigned int *rate_num, 00555 unsigned int *rate_den); 00556 int snd_pcm_hw_params_get_sbits(const snd_pcm_hw_params_t *params); 00557 int snd_pcm_hw_params_get_fifo_size(const snd_pcm_hw_params_t *params); 00558 00559 #if 0 00560 typedef struct _snd_pcm_hw_strategy snd_pcm_hw_strategy_t; 00561 00562 /* choices need to be sorted on ascending badness */ 00563 typedef struct _snd_pcm_hw_strategy_simple_choices_list { 00564 unsigned int value; 00565 unsigned int badness; 00566 } snd_pcm_hw_strategy_simple_choices_list_t; 00567 00568 int snd_pcm_hw_params_strategy(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, 00569 const snd_pcm_hw_strategy_t *strategy, 00570 unsigned int badness_min, 00571 unsigned int badness_max); 00572 00573 void snd_pcm_hw_strategy_free(snd_pcm_hw_strategy_t *strategy); 00574 int snd_pcm_hw_strategy_simple(snd_pcm_hw_strategy_t **strategyp, 00575 unsigned int badness_min, 00576 unsigned int badness_max); 00577 int snd_pcm_hw_params_try_explain_failure(snd_pcm_t *pcm, 00578 snd_pcm_hw_params_t *fail, 00579 snd_pcm_hw_params_t *success, 00580 unsigned int depth, 00581 snd_output_t *out); 00582 00583 #endif 00584 00585 size_t snd_pcm_hw_params_sizeof(void); 00590 #define snd_pcm_hw_params_alloca(ptr) __snd_alloca(ptr, snd_pcm_hw_params) 00591 int snd_pcm_hw_params_malloc(snd_pcm_hw_params_t **ptr); 00592 void snd_pcm_hw_params_free(snd_pcm_hw_params_t *obj); 00593 void snd_pcm_hw_params_copy(snd_pcm_hw_params_t *dst, const snd_pcm_hw_params_t *src); 00594 00595 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_HW_PARAMS_API) 00596 00597 int snd_pcm_hw_params_get_access(const snd_pcm_hw_params_t *params, snd_pcm_access_t *_access); 00598 int snd_pcm_hw_params_test_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access); 00599 int snd_pcm_hw_params_set_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access); 00600 int snd_pcm_hw_params_set_access_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access); 00601 int snd_pcm_hw_params_set_access_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access); 00602 int snd_pcm_hw_params_set_access_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask); 00603 int snd_pcm_hw_params_get_access_mask(snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask); 00604 00605 int snd_pcm_hw_params_get_format(const snd_pcm_hw_params_t *params, snd_pcm_format_t *val); 00606 int snd_pcm_hw_params_test_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val); 00607 int snd_pcm_hw_params_set_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val); 00608 int snd_pcm_hw_params_set_format_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format); 00609 int snd_pcm_hw_params_set_format_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format); 00610 int snd_pcm_hw_params_set_format_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask); 00611 void snd_pcm_hw_params_get_format_mask(snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask); 00612 00613 int snd_pcm_hw_params_get_subformat(const snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat); 00614 int snd_pcm_hw_params_test_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat); 00615 int snd_pcm_hw_params_set_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat); 00616 int snd_pcm_hw_params_set_subformat_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat); 00617 int snd_pcm_hw_params_set_subformat_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat); 00618 int snd_pcm_hw_params_set_subformat_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask); 00619 void snd_pcm_hw_params_get_subformat_mask(snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask); 00620 00621 int snd_pcm_hw_params_get_channels(const snd_pcm_hw_params_t *params, unsigned int *val); 00622 int snd_pcm_hw_params_get_channels_min(const snd_pcm_hw_params_t *params, unsigned int *val); 00623 int snd_pcm_hw_params_get_channels_max(const snd_pcm_hw_params_t *params, unsigned int *val); 00624 int snd_pcm_hw_params_test_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00625 int snd_pcm_hw_params_set_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00626 int snd_pcm_hw_params_set_channels_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00627 int snd_pcm_hw_params_set_channels_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00628 int snd_pcm_hw_params_set_channels_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, unsigned int *max); 00629 int snd_pcm_hw_params_set_channels_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00630 int snd_pcm_hw_params_set_channels_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00631 int snd_pcm_hw_params_set_channels_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00632 00633 int snd_pcm_hw_params_get_rate(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00634 int snd_pcm_hw_params_get_rate_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00635 int snd_pcm_hw_params_get_rate_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00636 int snd_pcm_hw_params_test_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00637 int snd_pcm_hw_params_set_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00638 int snd_pcm_hw_params_set_rate_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00639 int snd_pcm_hw_params_set_rate_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00640 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); 00641 int snd_pcm_hw_params_set_rate_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00642 int snd_pcm_hw_params_set_rate_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00643 int snd_pcm_hw_params_set_rate_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00644 int snd_pcm_hw_params_set_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00645 int snd_pcm_hw_params_get_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00646 int snd_pcm_hw_params_set_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00647 int snd_pcm_hw_params_get_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00648 int snd_pcm_hw_params_set_period_wakeup(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val); 00649 int snd_pcm_hw_params_get_period_wakeup(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val); 00650 00651 int snd_pcm_hw_params_get_period_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00652 int snd_pcm_hw_params_get_period_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00653 int snd_pcm_hw_params_get_period_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00654 int snd_pcm_hw_params_test_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00655 int snd_pcm_hw_params_set_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00656 int snd_pcm_hw_params_set_period_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00657 int snd_pcm_hw_params_set_period_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00658 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); 00659 int snd_pcm_hw_params_set_period_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00660 int snd_pcm_hw_params_set_period_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00661 int snd_pcm_hw_params_set_period_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00662 00663 int snd_pcm_hw_params_get_period_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir); 00664 int snd_pcm_hw_params_get_period_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir); 00665 int snd_pcm_hw_params_get_period_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir); 00666 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); 00667 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); 00668 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); 00669 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); 00670 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); 00671 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); 00672 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); 00673 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); 00674 int snd_pcm_hw_params_set_period_size_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00675 00676 int snd_pcm_hw_params_get_periods(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00677 int snd_pcm_hw_params_get_periods_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00678 int snd_pcm_hw_params_get_periods_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00679 int snd_pcm_hw_params_test_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00680 int snd_pcm_hw_params_set_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00681 int snd_pcm_hw_params_set_periods_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00682 int snd_pcm_hw_params_set_periods_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00683 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); 00684 int snd_pcm_hw_params_set_periods_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00685 int snd_pcm_hw_params_set_periods_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00686 int snd_pcm_hw_params_set_periods_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00687 int snd_pcm_hw_params_set_periods_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params); 00688 00689 int snd_pcm_hw_params_get_buffer_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00690 int snd_pcm_hw_params_get_buffer_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00691 int snd_pcm_hw_params_get_buffer_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00692 int snd_pcm_hw_params_test_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00693 int snd_pcm_hw_params_set_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir); 00694 int snd_pcm_hw_params_set_buffer_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00695 int snd_pcm_hw_params_set_buffer_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00696 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); 00697 int snd_pcm_hw_params_set_buffer_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00698 int snd_pcm_hw_params_set_buffer_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00699 int snd_pcm_hw_params_set_buffer_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir); 00700 00701 int snd_pcm_hw_params_get_buffer_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00702 int snd_pcm_hw_params_get_buffer_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00703 int snd_pcm_hw_params_get_buffer_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00704 int snd_pcm_hw_params_test_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val); 00705 int snd_pcm_hw_params_set_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val); 00706 int snd_pcm_hw_params_set_buffer_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00707 int snd_pcm_hw_params_set_buffer_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00708 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); 00709 int snd_pcm_hw_params_set_buffer_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00710 int snd_pcm_hw_params_set_buffer_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00711 int snd_pcm_hw_params_set_buffer_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00712 00713 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_HW_PARAMS_API */ 00714 00715 int snd_pcm_hw_params_get_min_align(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val); 00716 00726 size_t snd_pcm_sw_params_sizeof(void); 00731 #define snd_pcm_sw_params_alloca(ptr) __snd_alloca(ptr, snd_pcm_sw_params) 00732 int snd_pcm_sw_params_malloc(snd_pcm_sw_params_t **ptr); 00733 void snd_pcm_sw_params_free(snd_pcm_sw_params_t *obj); 00734 void snd_pcm_sw_params_copy(snd_pcm_sw_params_t *dst, const snd_pcm_sw_params_t *src); 00735 int snd_pcm_sw_params_get_boundary(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00736 00737 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_SW_PARAMS_API) 00738 00739 int snd_pcm_sw_params_set_tstamp_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_t val); 00740 int snd_pcm_sw_params_get_tstamp_mode(const snd_pcm_sw_params_t *params, snd_pcm_tstamp_t *val); 00741 int snd_pcm_sw_params_set_avail_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00742 int snd_pcm_sw_params_get_avail_min(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00743 int snd_pcm_sw_params_set_period_event(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, int val); 00744 int snd_pcm_sw_params_get_period_event(const snd_pcm_sw_params_t *params, int *val); 00745 int snd_pcm_sw_params_set_start_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00746 int snd_pcm_sw_params_get_start_threshold(const snd_pcm_sw_params_t *paramsm, snd_pcm_uframes_t *val); 00747 int snd_pcm_sw_params_set_stop_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00748 int snd_pcm_sw_params_get_stop_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00749 int snd_pcm_sw_params_set_silence_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00750 int snd_pcm_sw_params_get_silence_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00751 int snd_pcm_sw_params_set_silence_size(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val); 00752 int snd_pcm_sw_params_get_silence_size(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val); 00753 00754 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_SW_PARAMS_API */ 00755 00758 /* include old API */ 00759 #ifndef ALSA_LIBRARY_BUILD 00760 #if defined(ALSA_PCM_OLD_HW_PARAMS_API) || defined(ALSA_PCM_OLD_SW_PARAMS_API) 00761 #include "pcm_old.h" 00762 #endif 00763 #endif 00764 00772 size_t snd_pcm_access_mask_sizeof(void); 00777 #define snd_pcm_access_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_access_mask) 00778 int snd_pcm_access_mask_malloc(snd_pcm_access_mask_t **ptr); 00779 void snd_pcm_access_mask_free(snd_pcm_access_mask_t *obj); 00780 void snd_pcm_access_mask_copy(snd_pcm_access_mask_t *dst, const snd_pcm_access_mask_t *src); 00781 void snd_pcm_access_mask_none(snd_pcm_access_mask_t *mask); 00782 void snd_pcm_access_mask_any(snd_pcm_access_mask_t *mask); 00783 int snd_pcm_access_mask_test(const snd_pcm_access_mask_t *mask, snd_pcm_access_t val); 00784 int snd_pcm_access_mask_empty(const snd_pcm_access_mask_t *mask); 00785 void snd_pcm_access_mask_set(snd_pcm_access_mask_t *mask, snd_pcm_access_t val); 00786 void snd_pcm_access_mask_reset(snd_pcm_access_mask_t *mask, snd_pcm_access_t val); 00787 00797 size_t snd_pcm_format_mask_sizeof(void); 00802 #define snd_pcm_format_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_format_mask) 00803 int snd_pcm_format_mask_malloc(snd_pcm_format_mask_t **ptr); 00804 void snd_pcm_format_mask_free(snd_pcm_format_mask_t *obj); 00805 void snd_pcm_format_mask_copy(snd_pcm_format_mask_t *dst, const snd_pcm_format_mask_t *src); 00806 void snd_pcm_format_mask_none(snd_pcm_format_mask_t *mask); 00807 void snd_pcm_format_mask_any(snd_pcm_format_mask_t *mask); 00808 int snd_pcm_format_mask_test(const snd_pcm_format_mask_t *mask, snd_pcm_format_t val); 00809 int snd_pcm_format_mask_empty(const snd_pcm_format_mask_t *mask); 00810 void snd_pcm_format_mask_set(snd_pcm_format_mask_t *mask, snd_pcm_format_t val); 00811 void snd_pcm_format_mask_reset(snd_pcm_format_mask_t *mask, snd_pcm_format_t val); 00812 00822 size_t snd_pcm_subformat_mask_sizeof(void); 00827 #define snd_pcm_subformat_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_subformat_mask) 00828 int snd_pcm_subformat_mask_malloc(snd_pcm_subformat_mask_t **ptr); 00829 void snd_pcm_subformat_mask_free(snd_pcm_subformat_mask_t *obj); 00830 void snd_pcm_subformat_mask_copy(snd_pcm_subformat_mask_t *dst, const snd_pcm_subformat_mask_t *src); 00831 void snd_pcm_subformat_mask_none(snd_pcm_subformat_mask_t *mask); 00832 void snd_pcm_subformat_mask_any(snd_pcm_subformat_mask_t *mask); 00833 int snd_pcm_subformat_mask_test(const snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val); 00834 int snd_pcm_subformat_mask_empty(const snd_pcm_subformat_mask_t *mask); 00835 void snd_pcm_subformat_mask_set(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val); 00836 void snd_pcm_subformat_mask_reset(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val); 00837 00847 size_t snd_pcm_status_sizeof(void); 00852 #define snd_pcm_status_alloca(ptr) __snd_alloca(ptr, snd_pcm_status) 00853 int snd_pcm_status_malloc(snd_pcm_status_t **ptr); 00854 void snd_pcm_status_free(snd_pcm_status_t *obj); 00855 void snd_pcm_status_copy(snd_pcm_status_t *dst, const snd_pcm_status_t *src); 00856 snd_pcm_state_t snd_pcm_status_get_state(const snd_pcm_status_t *obj); 00857 void snd_pcm_status_get_trigger_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr); 00858 void snd_pcm_status_get_trigger_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr); 00859 void snd_pcm_status_get_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr); 00860 void snd_pcm_status_get_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr); 00861 snd_pcm_sframes_t snd_pcm_status_get_delay(const snd_pcm_status_t *obj); 00862 snd_pcm_uframes_t snd_pcm_status_get_avail(const snd_pcm_status_t *obj); 00863 snd_pcm_uframes_t snd_pcm_status_get_avail_max(const snd_pcm_status_t *obj); 00864 snd_pcm_uframes_t snd_pcm_status_get_overrange(const snd_pcm_status_t *obj); 00865 00875 const char *snd_pcm_type_name(snd_pcm_type_t type); 00876 const char *snd_pcm_stream_name(const snd_pcm_stream_t stream); 00877 const char *snd_pcm_access_name(const snd_pcm_access_t _access); 00878 const char *snd_pcm_format_name(const snd_pcm_format_t format); 00879 const char *snd_pcm_format_description(const snd_pcm_format_t format); 00880 const char *snd_pcm_subformat_name(const snd_pcm_subformat_t subformat); 00881 const char *snd_pcm_subformat_description(const snd_pcm_subformat_t subformat); 00882 snd_pcm_format_t snd_pcm_format_value(const char* name); 00883 const char *snd_pcm_tstamp_mode_name(const snd_pcm_tstamp_t mode); 00884 const char *snd_pcm_state_name(const snd_pcm_state_t state); 00885 00895 int snd_pcm_dump(snd_pcm_t *pcm, snd_output_t *out); 00896 int snd_pcm_dump_hw_setup(snd_pcm_t *pcm, snd_output_t *out); 00897 int snd_pcm_dump_sw_setup(snd_pcm_t *pcm, snd_output_t *out); 00898 int snd_pcm_dump_setup(snd_pcm_t *pcm, snd_output_t *out); 00899 int snd_pcm_hw_params_dump(snd_pcm_hw_params_t *params, snd_output_t *out); 00900 int snd_pcm_sw_params_dump(snd_pcm_sw_params_t *params, snd_output_t *out); 00901 int snd_pcm_status_dump(snd_pcm_status_t *status, snd_output_t *out); 00902 00912 int snd_pcm_mmap_begin(snd_pcm_t *pcm, 00913 const snd_pcm_channel_area_t **areas, 00914 snd_pcm_uframes_t *offset, 00915 snd_pcm_uframes_t *frames); 00916 snd_pcm_sframes_t snd_pcm_mmap_commit(snd_pcm_t *pcm, 00917 snd_pcm_uframes_t offset, 00918 snd_pcm_uframes_t frames); 00919 snd_pcm_sframes_t snd_pcm_mmap_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size); 00920 snd_pcm_sframes_t snd_pcm_mmap_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size); 00921 snd_pcm_sframes_t snd_pcm_mmap_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 00922 snd_pcm_sframes_t snd_pcm_mmap_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size); 00923 00933 int snd_pcm_format_signed(snd_pcm_format_t format); 00934 int snd_pcm_format_unsigned(snd_pcm_format_t format); 00935 int snd_pcm_format_linear(snd_pcm_format_t format); 00936 int snd_pcm_format_float(snd_pcm_format_t format); 00937 int snd_pcm_format_little_endian(snd_pcm_format_t format); 00938 int snd_pcm_format_big_endian(snd_pcm_format_t format); 00939 int snd_pcm_format_cpu_endian(snd_pcm_format_t format); 00940 int snd_pcm_format_width(snd_pcm_format_t format); /* in bits */ 00941 int snd_pcm_format_physical_width(snd_pcm_format_t format); /* in bits */ 00942 snd_pcm_format_t snd_pcm_build_linear_format(int width, int pwidth, int unsignd, int big_endian); 00943 ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples); 00944 u_int8_t snd_pcm_format_silence(snd_pcm_format_t format); 00945 u_int16_t snd_pcm_format_silence_16(snd_pcm_format_t format); 00946 u_int32_t snd_pcm_format_silence_32(snd_pcm_format_t format); 00947 u_int64_t snd_pcm_format_silence_64(snd_pcm_format_t format); 00948 int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int samples); 00949 00950 snd_pcm_sframes_t snd_pcm_bytes_to_frames(snd_pcm_t *pcm, ssize_t bytes); 00951 ssize_t snd_pcm_frames_to_bytes(snd_pcm_t *pcm, snd_pcm_sframes_t frames); 00952 long snd_pcm_bytes_to_samples(snd_pcm_t *pcm, ssize_t bytes); 00953 ssize_t snd_pcm_samples_to_bytes(snd_pcm_t *pcm, long samples); 00954 00955 int snd_pcm_area_silence(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset, 00956 unsigned int samples, snd_pcm_format_t format); 00957 int snd_pcm_areas_silence(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, 00958 unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format); 00959 int snd_pcm_area_copy(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset, 00960 const snd_pcm_channel_area_t *src_channel, snd_pcm_uframes_t src_offset, 00961 unsigned int samples, snd_pcm_format_t format); 00962 int snd_pcm_areas_copy(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, 00963 const snd_pcm_channel_area_t *src_channels, snd_pcm_uframes_t src_offset, 00964 unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format); 00965 00976 typedef enum _snd_pcm_hook_type { 00977 SND_PCM_HOOK_TYPE_HW_PARAMS = 0, 00978 SND_PCM_HOOK_TYPE_HW_FREE, 00979 SND_PCM_HOOK_TYPE_CLOSE, 00980 SND_PCM_HOOK_TYPE_LAST = SND_PCM_HOOK_TYPE_CLOSE 00981 } snd_pcm_hook_type_t; 00982 00984 typedef struct _snd_pcm_hook snd_pcm_hook_t; 00986 typedef int (*snd_pcm_hook_func_t)(snd_pcm_hook_t *hook); 00987 snd_pcm_t *snd_pcm_hook_get_pcm(snd_pcm_hook_t *hook); 00988 void *snd_pcm_hook_get_private(snd_pcm_hook_t *hook); 00989 void snd_pcm_hook_set_private(snd_pcm_hook_t *hook, void *private_data); 00990 int snd_pcm_hook_add(snd_pcm_hook_t **hookp, snd_pcm_t *pcm, 00991 snd_pcm_hook_type_t type, 00992 snd_pcm_hook_func_t func, void *private_data); 00993 int snd_pcm_hook_remove(snd_pcm_hook_t *hook); 00994 01005 typedef struct _snd_pcm_scope_ops { 01009 int (*enable)(snd_pcm_scope_t *scope); 01013 void (*disable)(snd_pcm_scope_t *scope); 01017 void (*start)(snd_pcm_scope_t *scope); 01021 void (*stop)(snd_pcm_scope_t *scope); 01025 void (*update)(snd_pcm_scope_t *scope); 01029 void (*reset)(snd_pcm_scope_t *scope); 01033 void (*close)(snd_pcm_scope_t *scope); 01034 } snd_pcm_scope_ops_t; 01035 01036 snd_pcm_uframes_t snd_pcm_meter_get_bufsize(snd_pcm_t *pcm); 01037 unsigned int snd_pcm_meter_get_channels(snd_pcm_t *pcm); 01038 unsigned int snd_pcm_meter_get_rate(snd_pcm_t *pcm); 01039 snd_pcm_uframes_t snd_pcm_meter_get_now(snd_pcm_t *pcm); 01040 snd_pcm_uframes_t snd_pcm_meter_get_boundary(snd_pcm_t *pcm); 01041 int snd_pcm_meter_add_scope(snd_pcm_t *pcm, snd_pcm_scope_t *scope); 01042 snd_pcm_scope_t *snd_pcm_meter_search_scope(snd_pcm_t *pcm, const char *name); 01043 int snd_pcm_scope_malloc(snd_pcm_scope_t **ptr); 01044 void snd_pcm_scope_set_ops(snd_pcm_scope_t *scope, 01045 const snd_pcm_scope_ops_t *val); 01046 void snd_pcm_scope_set_name(snd_pcm_scope_t *scope, const char *val); 01047 const char *snd_pcm_scope_get_name(snd_pcm_scope_t *scope); 01048 void *snd_pcm_scope_get_callback_private(snd_pcm_scope_t *scope); 01049 void snd_pcm_scope_set_callback_private(snd_pcm_scope_t *scope, void *val); 01050 int snd_pcm_scope_s16_open(snd_pcm_t *pcm, const char *name, 01051 snd_pcm_scope_t **scopep); 01052 int16_t *snd_pcm_scope_s16_get_channel_buffer(snd_pcm_scope_t *scope, 01053 unsigned int channel); 01054 01065 typedef enum _snd_spcm_latency { 01068 SND_SPCM_LATENCY_STANDARD = 0, 01071 SND_SPCM_LATENCY_MEDIUM, 01074 SND_SPCM_LATENCY_REALTIME 01075 } snd_spcm_latency_t; 01076 01078 typedef enum _snd_spcm_xrun_type { 01080 SND_SPCM_XRUN_IGNORE = 0, 01082 SND_SPCM_XRUN_STOP 01083 } snd_spcm_xrun_type_t; 01084 01086 typedef enum _snd_spcm_duplex_type { 01088 SND_SPCM_DUPLEX_LIBERAL = 0, 01090 SND_SPCM_DUPLEX_PEDANTIC 01091 } snd_spcm_duplex_type_t; 01092 01093 int snd_spcm_init(snd_pcm_t *pcm, 01094 unsigned int rate, 01095 unsigned int channels, 01096 snd_pcm_format_t format, 01097 snd_pcm_subformat_t subformat, 01098 snd_spcm_latency_t latency, 01099 snd_pcm_access_t _access, 01100 snd_spcm_xrun_type_t xrun_type); 01101 01102 int snd_spcm_init_duplex(snd_pcm_t *playback_pcm, 01103 snd_pcm_t *capture_pcm, 01104 unsigned int rate, 01105 unsigned int channels, 01106 snd_pcm_format_t format, 01107 snd_pcm_subformat_t subformat, 01108 snd_spcm_latency_t latency, 01109 snd_pcm_access_t _access, 01110 snd_spcm_xrun_type_t xrun_type, 01111 snd_spcm_duplex_type_t duplex_type); 01112 01113 int snd_spcm_init_get_params(snd_pcm_t *pcm, 01114 unsigned int *rate, 01115 snd_pcm_uframes_t *buffer_size, 01116 snd_pcm_uframes_t *period_size); 01117 01127 /* Deprecated functions, for compatibility */ 01128 const char *snd_pcm_start_mode_name(snd_pcm_start_t mode) __attribute__((deprecated)); 01129 const char *snd_pcm_xrun_mode_name(snd_pcm_xrun_t mode) __attribute__((deprecated)); 01130 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)); 01131 snd_pcm_start_t snd_pcm_sw_params_get_start_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated)); 01132 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)); 01133 snd_pcm_xrun_t snd_pcm_sw_params_get_xrun_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated)); 01134 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_SW_PARAMS_API) 01135 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)); 01136 int snd_pcm_sw_params_get_xfer_align(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__((deprecated)); 01137 int snd_pcm_sw_params_set_sleep_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, unsigned int val) __attribute__((deprecated)); 01138 int snd_pcm_sw_params_get_sleep_min(const snd_pcm_sw_params_t *params, unsigned int *val) __attribute__((deprecated)); 01139 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_SW_PARAMS_API */ 01140 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_HW_PARAMS_API) 01141 int snd_pcm_hw_params_get_tick_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01142 int snd_pcm_hw_params_get_tick_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01143 int snd_pcm_hw_params_get_tick_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)); 01144 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)); 01145 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)); 01146 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)); 01147 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)); 01148 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)); 01149 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)); 01150 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)); 01151 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)); 01152 #endif /* !ALSA_LIBRARY_BUILD && !ALSA_PCM_OLD_HW_PARAMS_API */ 01153 01156 #ifdef __cplusplus 01157 } 01158 #endif 01159 01160 #endif /* __ALSA_PCM_H */