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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
00414 int snd_pcm_close(snd_pcm_t *pcm);
00415 const char *snd_pcm_name(snd_pcm_t *pcm);
00416 snd_pcm_type_t snd_pcm_type(snd_pcm_t *pcm);
00417 snd_pcm_stream_t snd_pcm_stream(snd_pcm_t *pcm);
00418 int snd_pcm_poll_descriptors_count(snd_pcm_t *pcm);
00419 int snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space);
00420 int snd_pcm_poll_descriptors_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents);
00421 int snd_pcm_nonblock(snd_pcm_t *pcm, int nonblock);
00422 int snd_async_add_pcm_handler(snd_async_handler_t **handler, snd_pcm_t *pcm,
00423 snd_async_callback_t callback, void *private_data);
00424 snd_pcm_t *snd_async_handler_get_pcm(snd_async_handler_t *handler);
00425 int snd_pcm_info(snd_pcm_t *pcm, snd_pcm_info_t *info);
00426 int snd_pcm_hw_params_current(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00427 int snd_pcm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00428 int snd_pcm_hw_free(snd_pcm_t *pcm);
00429 int snd_pcm_sw_params_current(snd_pcm_t *pcm, snd_pcm_sw_params_t *params);
00430 int snd_pcm_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t *params);
00431 int snd_pcm_prepare(snd_pcm_t *pcm);
00432 int snd_pcm_reset(snd_pcm_t *pcm);
00433 int snd_pcm_status(snd_pcm_t *pcm, snd_pcm_status_t *status);
00434 int snd_pcm_start(snd_pcm_t *pcm);
00435 int snd_pcm_drop(snd_pcm_t *pcm);
00436 int snd_pcm_drain(snd_pcm_t *pcm);
00437 int snd_pcm_pause(snd_pcm_t *pcm, int enable);
00438 snd_pcm_state_t snd_pcm_state(snd_pcm_t *pcm);
00439 int snd_pcm_hwsync(snd_pcm_t *pcm);
00440 int snd_pcm_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp);
00441 int snd_pcm_resume(snd_pcm_t *pcm);
00442 int snd_pcm_htimestamp(snd_pcm_t *pcm, snd_pcm_uframes_t *avail, snd_htimestamp_t *tstamp);
00443 snd_pcm_sframes_t snd_pcm_avail(snd_pcm_t *pcm);
00444 snd_pcm_sframes_t snd_pcm_avail_update(snd_pcm_t *pcm);
00445 int snd_pcm_avail_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *availp, snd_pcm_sframes_t *delayp);
00446 snd_pcm_sframes_t snd_pcm_rewindable(snd_pcm_t *pcm);
00447 snd_pcm_sframes_t snd_pcm_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
00448 snd_pcm_sframes_t snd_pcm_forwardable(snd_pcm_t *pcm);
00449 snd_pcm_sframes_t snd_pcm_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
00450 snd_pcm_sframes_t snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
00451 snd_pcm_sframes_t snd_pcm_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size);
00452 snd_pcm_sframes_t snd_pcm_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
00453 snd_pcm_sframes_t snd_pcm_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
00454 int snd_pcm_wait(snd_pcm_t *pcm, int timeout);
00455
00456 int snd_pcm_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2);
00457 int snd_pcm_unlink(snd_pcm_t *pcm);
00458
00459
00460
00461
00462
00463
00464
00465
00466 int snd_pcm_recover(snd_pcm_t *pcm, int err, int silent);
00467 int snd_pcm_set_params(snd_pcm_t *pcm,
00468 snd_pcm_format_t format,
00469 snd_pcm_access_t access,
00470 unsigned int channels,
00471 unsigned int rate,
00472 int soft_resample,
00473 unsigned int latency);
00474 int snd_pcm_get_params(snd_pcm_t *pcm,
00475 snd_pcm_uframes_t *buffer_size,
00476 snd_pcm_uframes_t *period_size);
00477
00487 size_t snd_pcm_info_sizeof(void);
00492 #define snd_pcm_info_alloca(ptr) __snd_alloca(ptr, snd_pcm_info)
00493 int snd_pcm_info_malloc(snd_pcm_info_t **ptr);
00494 void snd_pcm_info_free(snd_pcm_info_t *obj);
00495 void snd_pcm_info_copy(snd_pcm_info_t *dst, const snd_pcm_info_t *src);
00496 unsigned int snd_pcm_info_get_device(const snd_pcm_info_t *obj);
00497 unsigned int snd_pcm_info_get_subdevice(const snd_pcm_info_t *obj);
00498 snd_pcm_stream_t snd_pcm_info_get_stream(const snd_pcm_info_t *obj);
00499 int snd_pcm_info_get_card(const snd_pcm_info_t *obj);
00500 const char *snd_pcm_info_get_id(const snd_pcm_info_t *obj);
00501 const char *snd_pcm_info_get_name(const snd_pcm_info_t *obj);
00502 const char *snd_pcm_info_get_subdevice_name(const snd_pcm_info_t *obj);
00503 snd_pcm_class_t snd_pcm_info_get_class(const snd_pcm_info_t *obj);
00504 snd_pcm_subclass_t snd_pcm_info_get_subclass(const snd_pcm_info_t *obj);
00505 unsigned int snd_pcm_info_get_subdevices_count(const snd_pcm_info_t *obj);
00506 unsigned int snd_pcm_info_get_subdevices_avail(const snd_pcm_info_t *obj);
00507 snd_pcm_sync_id_t snd_pcm_info_get_sync(const snd_pcm_info_t *obj);
00508 void snd_pcm_info_set_device(snd_pcm_info_t *obj, unsigned int val);
00509 void snd_pcm_info_set_subdevice(snd_pcm_info_t *obj, unsigned int val);
00510 void snd_pcm_info_set_stream(snd_pcm_info_t *obj, snd_pcm_stream_t val);
00511
00521 int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00522
00523 int snd_pcm_hw_params_can_mmap_sample_resolution(const snd_pcm_hw_params_t *params);
00524 int snd_pcm_hw_params_is_double(const snd_pcm_hw_params_t *params);
00525 int snd_pcm_hw_params_is_batch(const snd_pcm_hw_params_t *params);
00526 int snd_pcm_hw_params_is_block_transfer(const snd_pcm_hw_params_t *params);
00527 int snd_pcm_hw_params_is_monotonic(const snd_pcm_hw_params_t *params);
00528 int snd_pcm_hw_params_can_overrange(const snd_pcm_hw_params_t *params);
00529 int snd_pcm_hw_params_can_forward(const snd_pcm_hw_params_t *params);
00530 int snd_pcm_hw_params_can_rewind(const snd_pcm_hw_params_t *params);
00531 int snd_pcm_hw_params_can_pause(const snd_pcm_hw_params_t *params);
00532 int snd_pcm_hw_params_can_resume(const snd_pcm_hw_params_t *params);
00533 int snd_pcm_hw_params_is_half_duplex(const snd_pcm_hw_params_t *params);
00534 int snd_pcm_hw_params_is_joint_duplex(const snd_pcm_hw_params_t *params);
00535 int snd_pcm_hw_params_can_sync_start(const snd_pcm_hw_params_t *params);
00536 int snd_pcm_hw_params_get_rate_numden(const snd_pcm_hw_params_t *params,
00537 unsigned int *rate_num,
00538 unsigned int *rate_den);
00539 int snd_pcm_hw_params_get_sbits(const snd_pcm_hw_params_t *params);
00540 int snd_pcm_hw_params_get_fifo_size(const snd_pcm_hw_params_t *params);
00541
00542 #if 0
00543 typedef struct _snd_pcm_hw_strategy snd_pcm_hw_strategy_t;
00544
00545
00546 typedef struct _snd_pcm_hw_strategy_simple_choices_list {
00547 unsigned int value;
00548 unsigned int badness;
00549 } snd_pcm_hw_strategy_simple_choices_list_t;
00550
00551 int snd_pcm_hw_params_strategy(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
00552 const snd_pcm_hw_strategy_t *strategy,
00553 unsigned int badness_min,
00554 unsigned int badness_max);
00555
00556 void snd_pcm_hw_strategy_free(snd_pcm_hw_strategy_t *strategy);
00557 int snd_pcm_hw_strategy_simple(snd_pcm_hw_strategy_t **strategyp,
00558 unsigned int badness_min,
00559 unsigned int badness_max);
00560 int snd_pcm_hw_params_try_explain_failure(snd_pcm_t *pcm,
00561 snd_pcm_hw_params_t *fail,
00562 snd_pcm_hw_params_t *success,
00563 unsigned int depth,
00564 snd_output_t *out);
00565
00566 #endif
00567
00568 size_t snd_pcm_hw_params_sizeof(void);
00573 #define snd_pcm_hw_params_alloca(ptr) __snd_alloca(ptr, snd_pcm_hw_params)
00574 int snd_pcm_hw_params_malloc(snd_pcm_hw_params_t **ptr);
00575 void snd_pcm_hw_params_free(snd_pcm_hw_params_t *obj);
00576 void snd_pcm_hw_params_copy(snd_pcm_hw_params_t *dst, const snd_pcm_hw_params_t *src);
00577
00578 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_HW_PARAMS_API)
00579
00580 int snd_pcm_hw_params_get_access(const snd_pcm_hw_params_t *params, snd_pcm_access_t *_access);
00581 int snd_pcm_hw_params_test_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access);
00582 int snd_pcm_hw_params_set_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access);
00583 int snd_pcm_hw_params_set_access_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access);
00584 int snd_pcm_hw_params_set_access_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access);
00585 int snd_pcm_hw_params_set_access_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask);
00586 int snd_pcm_hw_params_get_access_mask(snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask);
00587
00588 int snd_pcm_hw_params_get_format(const snd_pcm_hw_params_t *params, snd_pcm_format_t *val);
00589 int snd_pcm_hw_params_test_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
00590 int snd_pcm_hw_params_set_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
00591 int snd_pcm_hw_params_set_format_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format);
00592 int snd_pcm_hw_params_set_format_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format);
00593 int snd_pcm_hw_params_set_format_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask);
00594 void snd_pcm_hw_params_get_format_mask(snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask);
00595
00596 int snd_pcm_hw_params_get_subformat(const snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat);
00597 int snd_pcm_hw_params_test_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat);
00598 int snd_pcm_hw_params_set_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat);
00599 int snd_pcm_hw_params_set_subformat_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat);
00600 int snd_pcm_hw_params_set_subformat_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat);
00601 int snd_pcm_hw_params_set_subformat_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask);
00602 void snd_pcm_hw_params_get_subformat_mask(snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask);
00603
00604 int snd_pcm_hw_params_get_channels(const snd_pcm_hw_params_t *params, unsigned int *val);
00605 int snd_pcm_hw_params_get_channels_min(const snd_pcm_hw_params_t *params, unsigned int *val);
00606 int snd_pcm_hw_params_get_channels_max(const snd_pcm_hw_params_t *params, unsigned int *val);
00607 int snd_pcm_hw_params_test_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
00608 int snd_pcm_hw_params_set_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
00609 int snd_pcm_hw_params_set_channels_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00610 int snd_pcm_hw_params_set_channels_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00611 int snd_pcm_hw_params_set_channels_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, unsigned int *max);
00612 int snd_pcm_hw_params_set_channels_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00613 int snd_pcm_hw_params_set_channels_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00614 int snd_pcm_hw_params_set_channels_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00615
00616 int snd_pcm_hw_params_get_rate(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00617 int snd_pcm_hw_params_get_rate_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00618 int snd_pcm_hw_params_get_rate_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00619 int snd_pcm_hw_params_test_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00620 int snd_pcm_hw_params_set_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00621 int snd_pcm_hw_params_set_rate_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00622 int snd_pcm_hw_params_set_rate_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00623 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);
00624 int snd_pcm_hw_params_set_rate_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00625 int snd_pcm_hw_params_set_rate_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00626 int snd_pcm_hw_params_set_rate_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00627 int snd_pcm_hw_params_set_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
00628 int snd_pcm_hw_params_get_rate_resample(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00629 int snd_pcm_hw_params_set_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
00630 int snd_pcm_hw_params_get_export_buffer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00631
00632 int snd_pcm_hw_params_get_period_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00633 int snd_pcm_hw_params_get_period_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00634 int snd_pcm_hw_params_get_period_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00635 int snd_pcm_hw_params_test_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00636 int snd_pcm_hw_params_set_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00637 int snd_pcm_hw_params_set_period_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00638 int snd_pcm_hw_params_set_period_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00639 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);
00640 int snd_pcm_hw_params_set_period_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00641 int snd_pcm_hw_params_set_period_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00642 int snd_pcm_hw_params_set_period_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00643
00644 int snd_pcm_hw_params_get_period_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir);
00645 int snd_pcm_hw_params_get_period_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir);
00646 int snd_pcm_hw_params_get_period_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir);
00647 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);
00648 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);
00649 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);
00650 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);
00651 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);
00652 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);
00653 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);
00654 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);
00655 int snd_pcm_hw_params_set_period_size_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00656
00657 int snd_pcm_hw_params_get_periods(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00658 int snd_pcm_hw_params_get_periods_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00659 int snd_pcm_hw_params_get_periods_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00660 int snd_pcm_hw_params_test_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00661 int snd_pcm_hw_params_set_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00662 int snd_pcm_hw_params_set_periods_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00663 int snd_pcm_hw_params_set_periods_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00664 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);
00665 int snd_pcm_hw_params_set_periods_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00666 int snd_pcm_hw_params_set_periods_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00667 int snd_pcm_hw_params_set_periods_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00668 int snd_pcm_hw_params_set_periods_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00669
00670 int snd_pcm_hw_params_get_buffer_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00671 int snd_pcm_hw_params_get_buffer_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00672 int snd_pcm_hw_params_get_buffer_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00673 int snd_pcm_hw_params_test_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00674 int snd_pcm_hw_params_set_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00675 int snd_pcm_hw_params_set_buffer_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00676 int snd_pcm_hw_params_set_buffer_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00677 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);
00678 int snd_pcm_hw_params_set_buffer_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00679 int snd_pcm_hw_params_set_buffer_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00680 int snd_pcm_hw_params_set_buffer_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00681
00682 int snd_pcm_hw_params_get_buffer_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00683 int snd_pcm_hw_params_get_buffer_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00684 int snd_pcm_hw_params_get_buffer_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00685 int snd_pcm_hw_params_test_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
00686 int snd_pcm_hw_params_set_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
00687 int snd_pcm_hw_params_set_buffer_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00688 int snd_pcm_hw_params_set_buffer_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00689 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);
00690 int snd_pcm_hw_params_set_buffer_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00691 int snd_pcm_hw_params_set_buffer_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00692 int snd_pcm_hw_params_set_buffer_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00693
00694 #endif
00695
00696 int snd_pcm_hw_params_get_min_align(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00697
00707 size_t snd_pcm_sw_params_sizeof(void);
00712 #define snd_pcm_sw_params_alloca(ptr) __snd_alloca(ptr, snd_pcm_sw_params)
00713 int snd_pcm_sw_params_malloc(snd_pcm_sw_params_t **ptr);
00714 void snd_pcm_sw_params_free(snd_pcm_sw_params_t *obj);
00715 void snd_pcm_sw_params_copy(snd_pcm_sw_params_t *dst, const snd_pcm_sw_params_t *src);
00716 int snd_pcm_sw_params_get_boundary(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
00717
00718 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_SW_PARAMS_API)
00719
00720 int snd_pcm_sw_params_set_tstamp_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_t val);
00721 int snd_pcm_sw_params_get_tstamp_mode(const snd_pcm_sw_params_t *params, snd_pcm_tstamp_t *val);
00722 int snd_pcm_sw_params_set_avail_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00723 int snd_pcm_sw_params_get_avail_min(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
00724 int snd_pcm_sw_params_set_period_event(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, int val);
00725 int snd_pcm_sw_params_get_period_event(const snd_pcm_sw_params_t *params, int *val);
00726 int snd_pcm_sw_params_set_start_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00727 int snd_pcm_sw_params_get_start_threshold(const snd_pcm_sw_params_t *paramsm, snd_pcm_uframes_t *val);
00728 int snd_pcm_sw_params_set_stop_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00729 int snd_pcm_sw_params_get_stop_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
00730 int snd_pcm_sw_params_set_silence_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00731 int snd_pcm_sw_params_get_silence_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
00732 int snd_pcm_sw_params_set_silence_size(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00733 int snd_pcm_sw_params_get_silence_size(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
00734
00735 #endif
00736
00739
00740 #ifndef ALSA_LIBRARY_BUILD
00741 #if defined(ALSA_PCM_OLD_HW_PARAMS_API) || defined(ALSA_PCM_OLD_SW_PARAMS_API)
00742 #include "pcm_old.h"
00743 #endif
00744 #endif
00745
00753 size_t snd_pcm_access_mask_sizeof(void);
00758 #define snd_pcm_access_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_access_mask)
00759 int snd_pcm_access_mask_malloc(snd_pcm_access_mask_t **ptr);
00760 void snd_pcm_access_mask_free(snd_pcm_access_mask_t *obj);
00761 void snd_pcm_access_mask_copy(snd_pcm_access_mask_t *dst, const snd_pcm_access_mask_t *src);
00762 void snd_pcm_access_mask_none(snd_pcm_access_mask_t *mask);
00763 void snd_pcm_access_mask_any(snd_pcm_access_mask_t *mask);
00764 int snd_pcm_access_mask_test(const snd_pcm_access_mask_t *mask, snd_pcm_access_t val);
00765 int snd_pcm_access_mask_empty(const snd_pcm_access_mask_t *mask);
00766 void snd_pcm_access_mask_set(snd_pcm_access_mask_t *mask, snd_pcm_access_t val);
00767 void snd_pcm_access_mask_reset(snd_pcm_access_mask_t *mask, snd_pcm_access_t val);
00768
00778 size_t snd_pcm_format_mask_sizeof(void);
00783 #define snd_pcm_format_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_format_mask)
00784 int snd_pcm_format_mask_malloc(snd_pcm_format_mask_t **ptr);
00785 void snd_pcm_format_mask_free(snd_pcm_format_mask_t *obj);
00786 void snd_pcm_format_mask_copy(snd_pcm_format_mask_t *dst, const snd_pcm_format_mask_t *src);
00787 void snd_pcm_format_mask_none(snd_pcm_format_mask_t *mask);
00788 void snd_pcm_format_mask_any(snd_pcm_format_mask_t *mask);
00789 int snd_pcm_format_mask_test(const snd_pcm_format_mask_t *mask, snd_pcm_format_t val);
00790 int snd_pcm_format_mask_empty(const snd_pcm_format_mask_t *mask);
00791 void snd_pcm_format_mask_set(snd_pcm_format_mask_t *mask, snd_pcm_format_t val);
00792 void snd_pcm_format_mask_reset(snd_pcm_format_mask_t *mask, snd_pcm_format_t val);
00793
00803 size_t snd_pcm_subformat_mask_sizeof(void);
00808 #define snd_pcm_subformat_mask_alloca(ptr) __snd_alloca(ptr, snd_pcm_subformat_mask)
00809 int snd_pcm_subformat_mask_malloc(snd_pcm_subformat_mask_t **ptr);
00810 void snd_pcm_subformat_mask_free(snd_pcm_subformat_mask_t *obj);
00811 void snd_pcm_subformat_mask_copy(snd_pcm_subformat_mask_t *dst, const snd_pcm_subformat_mask_t *src);
00812 void snd_pcm_subformat_mask_none(snd_pcm_subformat_mask_t *mask);
00813 void snd_pcm_subformat_mask_any(snd_pcm_subformat_mask_t *mask);
00814 int snd_pcm_subformat_mask_test(const snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val);
00815 int snd_pcm_subformat_mask_empty(const snd_pcm_subformat_mask_t *mask);
00816 void snd_pcm_subformat_mask_set(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val);
00817 void snd_pcm_subformat_mask_reset(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val);
00818
00828 size_t snd_pcm_status_sizeof(void);
00833 #define snd_pcm_status_alloca(ptr) __snd_alloca(ptr, snd_pcm_status)
00834 int snd_pcm_status_malloc(snd_pcm_status_t **ptr);
00835 void snd_pcm_status_free(snd_pcm_status_t *obj);
00836 void snd_pcm_status_copy(snd_pcm_status_t *dst, const snd_pcm_status_t *src);
00837 snd_pcm_state_t snd_pcm_status_get_state(const snd_pcm_status_t *obj);
00838 void snd_pcm_status_get_trigger_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr);
00839 void snd_pcm_status_get_trigger_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr);
00840 void snd_pcm_status_get_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr);
00841 void snd_pcm_status_get_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr);
00842 snd_pcm_sframes_t snd_pcm_status_get_delay(const snd_pcm_status_t *obj);
00843 snd_pcm_uframes_t snd_pcm_status_get_avail(const snd_pcm_status_t *obj);
00844 snd_pcm_uframes_t snd_pcm_status_get_avail_max(const snd_pcm_status_t *obj);
00845 snd_pcm_uframes_t snd_pcm_status_get_overrange(const snd_pcm_status_t *obj);
00846
00856 const char *snd_pcm_type_name(snd_pcm_type_t type);
00857 const char *snd_pcm_stream_name(const snd_pcm_stream_t stream);
00858 const char *snd_pcm_access_name(const snd_pcm_access_t _access);
00859 const char *snd_pcm_format_name(const snd_pcm_format_t format);
00860 const char *snd_pcm_format_description(const snd_pcm_format_t format);
00861 const char *snd_pcm_subformat_name(const snd_pcm_subformat_t subformat);
00862 const char *snd_pcm_subformat_description(const snd_pcm_subformat_t subformat);
00863 snd_pcm_format_t snd_pcm_format_value(const char* name);
00864 const char *snd_pcm_tstamp_mode_name(const snd_pcm_tstamp_t mode);
00865 const char *snd_pcm_state_name(const snd_pcm_state_t state);
00866
00876 int snd_pcm_dump(snd_pcm_t *pcm, snd_output_t *out);
00877 int snd_pcm_dump_hw_setup(snd_pcm_t *pcm, snd_output_t *out);
00878 int snd_pcm_dump_sw_setup(snd_pcm_t *pcm, snd_output_t *out);
00879 int snd_pcm_dump_setup(snd_pcm_t *pcm, snd_output_t *out);
00880 int snd_pcm_hw_params_dump(snd_pcm_hw_params_t *params, snd_output_t *out);
00881 int snd_pcm_sw_params_dump(snd_pcm_sw_params_t *params, snd_output_t *out);
00882 int snd_pcm_status_dump(snd_pcm_status_t *status, snd_output_t *out);
00883
00893 int snd_pcm_mmap_begin(snd_pcm_t *pcm,
00894 const snd_pcm_channel_area_t **areas,
00895 snd_pcm_uframes_t *offset,
00896 snd_pcm_uframes_t *frames);
00897 snd_pcm_sframes_t snd_pcm_mmap_commit(snd_pcm_t *pcm,
00898 snd_pcm_uframes_t offset,
00899 snd_pcm_uframes_t frames);
00900 snd_pcm_sframes_t snd_pcm_mmap_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
00901 snd_pcm_sframes_t snd_pcm_mmap_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size);
00902 snd_pcm_sframes_t snd_pcm_mmap_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
00903 snd_pcm_sframes_t snd_pcm_mmap_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
00904
00914 int snd_pcm_format_signed(snd_pcm_format_t format);
00915 int snd_pcm_format_unsigned(snd_pcm_format_t format);
00916 int snd_pcm_format_linear(snd_pcm_format_t format);
00917 int snd_pcm_format_float(snd_pcm_format_t format);
00918 int snd_pcm_format_little_endian(snd_pcm_format_t format);
00919 int snd_pcm_format_big_endian(snd_pcm_format_t format);
00920 int snd_pcm_format_cpu_endian(snd_pcm_format_t format);
00921 int snd_pcm_format_width(snd_pcm_format_t format);
00922 int snd_pcm_format_physical_width(snd_pcm_format_t format);
00923 snd_pcm_format_t snd_pcm_build_linear_format(int width, int pwidth, int unsignd, int big_endian);
00924 ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples);
00925 u_int8_t snd_pcm_format_silence(snd_pcm_format_t format);
00926 u_int16_t snd_pcm_format_silence_16(snd_pcm_format_t format);
00927 u_int32_t snd_pcm_format_silence_32(snd_pcm_format_t format);
00928 u_int64_t snd_pcm_format_silence_64(snd_pcm_format_t format);
00929 int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int samples);
00930
00931 snd_pcm_sframes_t snd_pcm_bytes_to_frames(snd_pcm_t *pcm, ssize_t bytes);
00932 ssize_t snd_pcm_frames_to_bytes(snd_pcm_t *pcm, snd_pcm_sframes_t frames);
00933 long snd_pcm_bytes_to_samples(snd_pcm_t *pcm, ssize_t bytes);
00934 ssize_t snd_pcm_samples_to_bytes(snd_pcm_t *pcm, long samples);
00935
00936 int snd_pcm_area_silence(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset,
00937 unsigned int samples, snd_pcm_format_t format);
00938 int snd_pcm_areas_silence(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset,
00939 unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format);
00940 int snd_pcm_area_copy(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset,
00941 const snd_pcm_channel_area_t *src_channel, snd_pcm_uframes_t src_offset,
00942 unsigned int samples, snd_pcm_format_t format);
00943 int snd_pcm_areas_copy(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset,
00944 const snd_pcm_channel_area_t *src_channels, snd_pcm_uframes_t src_offset,
00945 unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format);
00946
00957 typedef enum _snd_pcm_hook_type {
00958 SND_PCM_HOOK_TYPE_HW_PARAMS = 0,
00959 SND_PCM_HOOK_TYPE_HW_FREE,
00960 SND_PCM_HOOK_TYPE_CLOSE,
00961 SND_PCM_HOOK_TYPE_LAST = SND_PCM_HOOK_TYPE_CLOSE
00962 } snd_pcm_hook_type_t;
00963
00965 typedef struct _snd_pcm_hook snd_pcm_hook_t;
00967 typedef int (*snd_pcm_hook_func_t)(snd_pcm_hook_t *hook);
00968 snd_pcm_t *snd_pcm_hook_get_pcm(snd_pcm_hook_t *hook);
00969 void *snd_pcm_hook_get_private(snd_pcm_hook_t *hook);
00970 void snd_pcm_hook_set_private(snd_pcm_hook_t *hook, void *private_data);
00971 int snd_pcm_hook_add(snd_pcm_hook_t **hookp, snd_pcm_t *pcm,
00972 snd_pcm_hook_type_t type,
00973 snd_pcm_hook_func_t func, void *private_data);
00974 int snd_pcm_hook_remove(snd_pcm_hook_t *hook);
00975
00986 typedef struct _snd_pcm_scope_ops {
00990 int (*enable)(snd_pcm_scope_t *scope);
00994 void (*disable)(snd_pcm_scope_t *scope);
00998 void (*start)(snd_pcm_scope_t *scope);
01002 void (*stop)(snd_pcm_scope_t *scope);
01006 void (*update)(snd_pcm_scope_t *scope);
01010 void (*reset)(snd_pcm_scope_t *scope);
01014 void (*close)(snd_pcm_scope_t *scope);
01015 } snd_pcm_scope_ops_t;
01016
01017 snd_pcm_uframes_t snd_pcm_meter_get_bufsize(snd_pcm_t *pcm);
01018 unsigned int snd_pcm_meter_get_channels(snd_pcm_t *pcm);
01019 unsigned int snd_pcm_meter_get_rate(snd_pcm_t *pcm);
01020 snd_pcm_uframes_t snd_pcm_meter_get_now(snd_pcm_t *pcm);
01021 snd_pcm_uframes_t snd_pcm_meter_get_boundary(snd_pcm_t *pcm);
01022 int snd_pcm_meter_add_scope(snd_pcm_t *pcm, snd_pcm_scope_t *scope);
01023 snd_pcm_scope_t *snd_pcm_meter_search_scope(snd_pcm_t *pcm, const char *name);
01024 int snd_pcm_scope_malloc(snd_pcm_scope_t **ptr);
01025 void snd_pcm_scope_set_ops(snd_pcm_scope_t *scope,
01026 const snd_pcm_scope_ops_t *val);
01027 void snd_pcm_scope_set_name(snd_pcm_scope_t *scope, const char *val);
01028 const char *snd_pcm_scope_get_name(snd_pcm_scope_t *scope);
01029 void *snd_pcm_scope_get_callback_private(snd_pcm_scope_t *scope);
01030 void snd_pcm_scope_set_callback_private(snd_pcm_scope_t *scope, void *val);
01031 int snd_pcm_scope_s16_open(snd_pcm_t *pcm, const char *name,
01032 snd_pcm_scope_t **scopep);
01033 int16_t *snd_pcm_scope_s16_get_channel_buffer(snd_pcm_scope_t *scope,
01034 unsigned int channel);
01035
01046 typedef enum _snd_spcm_latency {
01049 SND_SPCM_LATENCY_STANDARD = 0,
01052 SND_SPCM_LATENCY_MEDIUM,
01055 SND_SPCM_LATENCY_REALTIME
01056 } snd_spcm_latency_t;
01057
01059 typedef enum _snd_spcm_xrun_type {
01061 SND_SPCM_XRUN_IGNORE = 0,
01063 SND_SPCM_XRUN_STOP
01064 } snd_spcm_xrun_type_t;
01065
01067 typedef enum _snd_spcm_duplex_type {
01069 SND_SPCM_DUPLEX_LIBERAL = 0,
01071 SND_SPCM_DUPLEX_PEDANTIC
01072 } snd_spcm_duplex_type_t;
01073
01074 int snd_spcm_init(snd_pcm_t *pcm,
01075 unsigned int rate,
01076 unsigned int channels,
01077 snd_pcm_format_t format,
01078 snd_pcm_subformat_t subformat,
01079 snd_spcm_latency_t latency,
01080 snd_pcm_access_t _access,
01081 snd_spcm_xrun_type_t xrun_type);
01082
01083 int snd_spcm_init_duplex(snd_pcm_t *playback_pcm,
01084 snd_pcm_t *capture_pcm,
01085 unsigned int rate,
01086 unsigned int channels,
01087 snd_pcm_format_t format,
01088 snd_pcm_subformat_t subformat,
01089 snd_spcm_latency_t latency,
01090 snd_pcm_access_t _access,
01091 snd_spcm_xrun_type_t xrun_type,
01092 snd_spcm_duplex_type_t duplex_type);
01093
01094 int snd_spcm_init_get_params(snd_pcm_t *pcm,
01095 unsigned int *rate,
01096 snd_pcm_uframes_t *buffer_size,
01097 snd_pcm_uframes_t *period_size);
01098
01108
01109 const char *snd_pcm_start_mode_name(snd_pcm_start_t mode) __attribute__((deprecated));
01110 const char *snd_pcm_xrun_mode_name(snd_pcm_xrun_t mode) __attribute__((deprecated));
01111 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));
01112 snd_pcm_start_t snd_pcm_sw_params_get_start_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated));
01113 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));
01114 snd_pcm_xrun_t snd_pcm_sw_params_get_xrun_mode(const snd_pcm_sw_params_t *params) __attribute__((deprecated));
01115 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_SW_PARAMS_API)
01116 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));
01117 int snd_pcm_sw_params_get_xfer_align(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__((deprecated));
01118 int snd_pcm_sw_params_set_sleep_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, unsigned int val) __attribute__((deprecated));
01119 int snd_pcm_sw_params_get_sleep_min(const snd_pcm_sw_params_t *params, unsigned int *val) __attribute__((deprecated));
01120 #endif
01121 #if !defined(ALSA_LIBRARY_BUILD) && !defined(ALSA_PCM_OLD_HW_PARAMS_API)
01122 int snd_pcm_hw_params_get_tick_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
01123 int snd_pcm_hw_params_get_tick_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
01124 int snd_pcm_hw_params_get_tick_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated));
01125 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));
01126 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));
01127 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));
01128 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));
01129 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));
01130 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));
01131 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));
01132 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));
01133 #endif
01134
01137 #ifdef __cplusplus
01138 }
01139 #endif
01140
01141 #endif