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pcm.h

00001 
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,
00257         SND_PCM_STATE_LAST = SND_PCM_STATE_SUSPENDED
00258 } snd_pcm_state_t;
00259 
00261 typedef enum _snd_pcm_start {
00263         SND_PCM_START_DATA = 0,
00265         SND_PCM_START_EXPLICIT,
00266         SND_PCM_START_LAST = SND_PCM_START_EXPLICIT
00267 } snd_pcm_start_t;
00268 
00270 typedef enum _snd_pcm_xrun {
00272         SND_PCM_XRUN_NONE = 0,
00274         SND_PCM_XRUN_STOP,
00275         SND_PCM_XRUN_LAST = SND_PCM_XRUN_STOP
00276 } snd_pcm_xrun_t;
00277 
00279 typedef enum _snd_pcm_tstamp {
00281         SND_PCM_TSTAMP_NONE = 0,
00283         SND_PCM_TSTAMP_MMAP,
00284         SND_PCM_TSTAMP_LAST = SND_PCM_TSTAMP_MMAP
00285 } snd_pcm_tstamp_t;
00286 
00288 typedef unsigned long snd_pcm_uframes_t;
00290 typedef long snd_pcm_sframes_t;
00291 
00293 #define SND_PCM_NONBLOCK                0x0001
00294 
00295 #define SND_PCM_ASYNC                   0x0002
00296 
00298 typedef struct _snd_pcm snd_pcm_t;
00299 
00301 enum _snd_pcm_type {
00303         SND_PCM_TYPE_HW = 0,
00305         SND_PCM_TYPE_HOOKS,
00308         SND_PCM_TYPE_MULTI,
00310         SND_PCM_TYPE_FILE,
00312         SND_PCM_TYPE_NULL,
00314         SND_PCM_TYPE_SHM,
00316         SND_PCM_TYPE_INET,
00318         SND_PCM_TYPE_COPY,
00320         SND_PCM_TYPE_LINEAR,
00322         SND_PCM_TYPE_ALAW,
00324         SND_PCM_TYPE_MULAW,
00326         SND_PCM_TYPE_ADPCM,
00328         SND_PCM_TYPE_RATE,
00330         SND_PCM_TYPE_ROUTE,
00332         SND_PCM_TYPE_PLUG,
00334         SND_PCM_TYPE_SHARE,
00336         SND_PCM_TYPE_METER,
00338         SND_PCM_TYPE_MIX,
00340         SND_PCM_TYPE_DROUTE,
00342         SND_PCM_TYPE_LBSERVER,
00344         SND_PCM_TYPE_LINEAR_FLOAT,
00346         SND_PCM_TYPE_LADSPA,
00348         SND_PCM_TYPE_DMIX,
00350         SND_PCM_TYPE_JACK,
00352         SND_PCM_TYPE_DSNOOP,
00354         SND_PCM_TYPE_DSHARE,
00355         SND_PCM_TYPE_LAST = SND_PCM_TYPE_DSNOOP
00356 };
00357 
00359 typedef enum _snd_pcm_type snd_pcm_type_t;
00360 
00362 typedef struct _snd_pcm_channel_area {
00364         void *addr;
00366         unsigned int first;
00368         unsigned int step;
00369 } snd_pcm_channel_area_t;
00370 
00372 typedef union _snd_pcm_sync_id {
00374         unsigned char id[16];
00376         unsigned short id16[8];
00378         unsigned int id32[4];
00379 } snd_pcm_sync_id_t;
00380 
00382 typedef struct _snd_pcm_scope snd_pcm_scope_t;
00383 
00384 int snd_pcm_open(snd_pcm_t **pcm, const char *name, 
00385                  snd_pcm_stream_t stream, int mode);
00386 int snd_pcm_open_lconf(snd_pcm_t **pcm, const char *name, 
00387                        snd_pcm_stream_t stream, int mode,
00388                        snd_config_t *lconf);
00389 
00390 int snd_pcm_close(snd_pcm_t *pcm);
00391 const char *snd_pcm_name(snd_pcm_t *pcm);
00392 snd_pcm_type_t snd_pcm_type(snd_pcm_t *pcm);
00393 snd_pcm_stream_t snd_pcm_stream(snd_pcm_t *pcm);
00394 int snd_pcm_poll_descriptors_count(snd_pcm_t *pcm);
00395 int snd_pcm_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space);
00396 int snd_pcm_poll_descriptors_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents);
00397 int snd_pcm_nonblock(snd_pcm_t *pcm, int nonblock);
00398 int snd_async_add_pcm_handler(snd_async_handler_t **handler, snd_pcm_t *pcm, 
00399                               snd_async_callback_t callback, void *private_data);
00400 snd_pcm_t *snd_async_handler_get_pcm(snd_async_handler_t *handler);
00401 int snd_pcm_info(snd_pcm_t *pcm, snd_pcm_info_t *info);
00402 int snd_pcm_hw_params_current(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00403 int snd_pcm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00404 int snd_pcm_hw_free(snd_pcm_t *pcm);
00405 int snd_pcm_sw_params_current(snd_pcm_t *pcm, snd_pcm_sw_params_t *params);
00406 int snd_pcm_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t *params);
00407 int snd_pcm_prepare(snd_pcm_t *pcm);
00408 int snd_pcm_reset(snd_pcm_t *pcm);
00409 int snd_pcm_status(snd_pcm_t *pcm, snd_pcm_status_t *status);
00410 int snd_pcm_start(snd_pcm_t *pcm);
00411 int snd_pcm_drop(snd_pcm_t *pcm);
00412 int snd_pcm_drain(snd_pcm_t *pcm);
00413 int snd_pcm_pause(snd_pcm_t *pcm, int enable);
00414 snd_pcm_state_t snd_pcm_state(snd_pcm_t *pcm);
00415 int snd_pcm_hwsync(snd_pcm_t *pcm);
00416 int snd_pcm_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp);
00417 int snd_pcm_resume(snd_pcm_t *pcm);
00418 snd_pcm_sframes_t snd_pcm_avail_update(snd_pcm_t *pcm);
00419 snd_pcm_sframes_t snd_pcm_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
00420 snd_pcm_sframes_t snd_pcm_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
00421 snd_pcm_sframes_t snd_pcm_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
00422 snd_pcm_sframes_t snd_pcm_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size);
00423 snd_pcm_sframes_t snd_pcm_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
00424 snd_pcm_sframes_t snd_pcm_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
00425 int snd_pcm_wait(snd_pcm_t *pcm, int timeout);
00426 
00427 int snd_pcm_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2);
00428 int snd_pcm_unlink(snd_pcm_t *pcm);
00429 
00439 size_t snd_pcm_info_sizeof(void);
00444 #define snd_pcm_info_alloca(ptr) do { assert(ptr); *ptr = (snd_pcm_info_t *) alloca(snd_pcm_info_sizeof()); memset(*ptr, 0, snd_pcm_info_sizeof()); } while (0)
00445 int snd_pcm_info_malloc(snd_pcm_info_t **ptr);
00446 void snd_pcm_info_free(snd_pcm_info_t *obj);
00447 void snd_pcm_info_copy(snd_pcm_info_t *dst, const snd_pcm_info_t *src);
00448 unsigned int snd_pcm_info_get_device(const snd_pcm_info_t *obj);
00449 unsigned int snd_pcm_info_get_subdevice(const snd_pcm_info_t *obj);
00450 snd_pcm_stream_t snd_pcm_info_get_stream(const snd_pcm_info_t *obj);
00451 int snd_pcm_info_get_card(const snd_pcm_info_t *obj);
00452 const char *snd_pcm_info_get_id(const snd_pcm_info_t *obj);
00453 const char *snd_pcm_info_get_name(const snd_pcm_info_t *obj);
00454 const char *snd_pcm_info_get_subdevice_name(const snd_pcm_info_t *obj);
00455 snd_pcm_class_t snd_pcm_info_get_class(const snd_pcm_info_t *obj);
00456 snd_pcm_subclass_t snd_pcm_info_get_subclass(const snd_pcm_info_t *obj);
00457 unsigned int snd_pcm_info_get_subdevices_count(const snd_pcm_info_t *obj);
00458 unsigned int snd_pcm_info_get_subdevices_avail(const snd_pcm_info_t *obj);
00459 snd_pcm_sync_id_t snd_pcm_info_get_sync(const snd_pcm_info_t *obj);
00460 void snd_pcm_info_set_device(snd_pcm_info_t *obj, unsigned int val);
00461 void snd_pcm_info_set_subdevice(snd_pcm_info_t *obj, unsigned int val);
00462 void snd_pcm_info_set_stream(snd_pcm_info_t *obj, snd_pcm_stream_t val);
00463 
00473 int snd_pcm_hw_params_any(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00474 
00475 int snd_pcm_hw_params_can_mmap_sample_resolution(const snd_pcm_hw_params_t *params);
00476 int snd_pcm_hw_params_is_double(const snd_pcm_hw_params_t *params);
00477 int snd_pcm_hw_params_is_batch(const snd_pcm_hw_params_t *params);
00478 int snd_pcm_hw_params_is_block_transfer(const snd_pcm_hw_params_t *params);
00479 int snd_pcm_hw_params_can_overrange(const snd_pcm_hw_params_t *params);
00480 int snd_pcm_hw_params_can_pause(const snd_pcm_hw_params_t *params);
00481 int snd_pcm_hw_params_can_resume(const snd_pcm_hw_params_t *params);
00482 int snd_pcm_hw_params_is_half_duplex(const snd_pcm_hw_params_t *params);
00483 int snd_pcm_hw_params_is_joint_duplex(const snd_pcm_hw_params_t *params);
00484 int snd_pcm_hw_params_can_sync_start(const snd_pcm_hw_params_t *params);
00485 int snd_pcm_hw_params_get_rate_numden(const snd_pcm_hw_params_t *params,
00486                                       unsigned int *rate_num,
00487                                       unsigned int *rate_den);
00488 int snd_pcm_hw_params_get_sbits(const snd_pcm_hw_params_t *params);
00489 int snd_pcm_hw_params_get_fifo_size(const snd_pcm_hw_params_t *params);
00490 
00491 #if 0
00492 typedef struct _snd_pcm_hw_strategy snd_pcm_hw_strategy_t;
00493 
00494 /* choices need to be sorted on ascending badness */
00495 typedef struct _snd_pcm_hw_strategy_simple_choices_list {
00496         unsigned int value;
00497         unsigned int badness;
00498 } snd_pcm_hw_strategy_simple_choices_list_t;
00499 
00500 int snd_pcm_hw_params_strategy(snd_pcm_t *pcm, snd_pcm_hw_params_t *params,
00501                                const snd_pcm_hw_strategy_t *strategy,
00502                                unsigned int badness_min,
00503                                unsigned int badness_max);
00504 
00505 void snd_pcm_hw_strategy_free(snd_pcm_hw_strategy_t *strategy);
00506 int snd_pcm_hw_strategy_simple(snd_pcm_hw_strategy_t **strategyp,
00507                                unsigned int badness_min,
00508                                unsigned int badness_max);
00509 int snd_pcm_hw_params_try_explain_failure(snd_pcm_t *pcm,
00510                                           snd_pcm_hw_params_t *fail,
00511                                           snd_pcm_hw_params_t *success,
00512                                           unsigned int depth,
00513                                           snd_output_t *out);
00514 
00515 #endif
00516 
00517 size_t snd_pcm_hw_params_sizeof(void);
00522 #define snd_pcm_hw_params_alloca(ptr) do { assert(ptr); *ptr = (snd_pcm_hw_params_t *) alloca(snd_pcm_hw_params_sizeof()); memset(*ptr, 0, snd_pcm_hw_params_sizeof()); } while (0)
00523 int snd_pcm_hw_params_malloc(snd_pcm_hw_params_t **ptr);
00524 void snd_pcm_hw_params_free(snd_pcm_hw_params_t *obj);
00525 void snd_pcm_hw_params_copy(snd_pcm_hw_params_t *dst, const snd_pcm_hw_params_t *src);
00526 
00527 #ifndef ALSA_LIBRARY_BUILD
00528 #ifdef ALSA_PCM_NEW_HW_PARAMS_API
00529 
00530 int snd_pcm_hw_params_get_access(const snd_pcm_hw_params_t *params, snd_pcm_access_t *access) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_access")));
00531 int snd_pcm_hw_params_test_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t access);
00532 int snd_pcm_hw_params_set_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t access);
00533 int snd_pcm_hw_params_set_access_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *access) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_access_last")));
00534 int snd_pcm_hw_params_set_access_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *access) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_access_last")));
00535 int snd_pcm_hw_params_set_access_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask);
00536 int snd_pcm_hw_params_get_access_mask(snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask);
00537 
00538 int snd_pcm_hw_params_get_format(const snd_pcm_hw_params_t *params, snd_pcm_format_t *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_format")));
00539 int snd_pcm_hw_params_test_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
00540 int snd_pcm_hw_params_set_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
00541 int snd_pcm_hw_params_set_format_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_format_first")));
00542 int snd_pcm_hw_params_set_format_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_format_last")));
00543 int snd_pcm_hw_params_set_format_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask);
00544 void snd_pcm_hw_params_get_format_mask(snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask);
00545 
00546 int snd_pcm_hw_params_get_subformat(const snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_subformat")));
00547 int snd_pcm_hw_params_test_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat);
00548 int snd_pcm_hw_params_set_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat);
00549 int snd_pcm_hw_params_set_subformat_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_subformat_first")));
00550 int snd_pcm_hw_params_set_subformat_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_subformat_last")));
00551 int snd_pcm_hw_params_set_subformat_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask);
00552 void snd_pcm_hw_params_get_subformat_mask(snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask);
00553 
00554 int snd_pcm_hw_params_get_channels(const snd_pcm_hw_params_t *params, unsigned int *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_channels")));
00555 int snd_pcm_hw_params_get_channels_min(const snd_pcm_hw_params_t *params, unsigned int *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_channels_min")));
00556 int snd_pcm_hw_params_get_channels_max(const snd_pcm_hw_params_t *params, unsigned int *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_channels_max")));
00557 int snd_pcm_hw_params_test_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
00558 int snd_pcm_hw_params_set_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
00559 int snd_pcm_hw_params_set_channels_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00560 int snd_pcm_hw_params_set_channels_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00561 int snd_pcm_hw_params_set_channels_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, unsigned int *max);
00562 int snd_pcm_hw_params_set_channels_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_channels_near")));
00563 int snd_pcm_hw_params_set_channels_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_channels_first")));
00564 int snd_pcm_hw_params_set_channels_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_channels_last")));
00565 
00566 int snd_pcm_hw_params_get_rate(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_rate")));
00567 int snd_pcm_hw_params_get_rate_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_rate_min")));
00568 int snd_pcm_hw_params_get_rate_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_rate_max")));
00569 int snd_pcm_hw_params_test_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00570 int snd_pcm_hw_params_set_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00571 int snd_pcm_hw_params_set_rate_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00572 int snd_pcm_hw_params_set_rate_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00573 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);
00574 int snd_pcm_hw_params_set_rate_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_rate_near")));
00575 int snd_pcm_hw_params_set_rate_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_rate_first")));
00576 int snd_pcm_hw_params_set_rate_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_rate_last")));
00577 
00578 int snd_pcm_hw_params_get_period_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_period_time")));
00579 int snd_pcm_hw_params_get_period_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_period_time_min")));
00580 int snd_pcm_hw_params_get_period_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_period_time_max")));
00581 int snd_pcm_hw_params_test_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00582 int snd_pcm_hw_params_set_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00583 int snd_pcm_hw_params_set_period_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00584 int snd_pcm_hw_params_set_period_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00585 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);
00586 int snd_pcm_hw_params_set_period_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_period_time_near")));
00587 int snd_pcm_hw_params_set_period_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_period_time_first")));
00588 int snd_pcm_hw_params_set_period_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_period_time_last")));
00589 
00590 int snd_pcm_hw_params_get_period_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_period_size")));
00591 int snd_pcm_hw_params_get_period_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_period_size_min")));
00592 int snd_pcm_hw_params_get_period_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_period_size_max"))); 
00593 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);
00594 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);
00595 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);
00596 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);
00597 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);
00598 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) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_period_size_near")));
00599 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) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_period_size_first")));
00600 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) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_period_size_last")));
00601 int snd_pcm_hw_params_set_period_size_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00602 
00603 int snd_pcm_hw_params_get_periods(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_periods")));
00604 int snd_pcm_hw_params_get_periods_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_periods_min")));
00605 int snd_pcm_hw_params_get_periods_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_periods_max")));
00606 int snd_pcm_hw_params_test_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00607 int snd_pcm_hw_params_set_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00608 int snd_pcm_hw_params_set_periods_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00609 int snd_pcm_hw_params_set_periods_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00610 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);
00611 int snd_pcm_hw_params_set_periods_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)  __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_periods_near")));
00612 int snd_pcm_hw_params_set_periods_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)  __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_periods_first")));
00613 int snd_pcm_hw_params_set_periods_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir)  __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_periods_last")));
00614 int snd_pcm_hw_params_set_periods_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00615 
00616 int snd_pcm_hw_params_get_buffer_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_buffer_time")));
00617 int snd_pcm_hw_params_get_buffer_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_buffer_time_min")));
00618 int snd_pcm_hw_params_get_buffer_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_buffer_time_max")));
00619 int snd_pcm_hw_params_test_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00620 int snd_pcm_hw_params_set_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00621 int snd_pcm_hw_params_set_buffer_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00622 int snd_pcm_hw_params_set_buffer_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00623 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);
00624 int snd_pcm_hw_params_set_buffer_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_buffer_time_near")));
00625 int snd_pcm_hw_params_set_buffer_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_buffer_time_first")));
00626 int snd_pcm_hw_params_set_buffer_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_buffer_time_last")));
00627 
00628 int snd_pcm_hw_params_get_buffer_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_buffer_size")));
00629 int snd_pcm_hw_params_get_buffer_size_min(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_buffer_size_min")));
00630 int snd_pcm_hw_params_get_buffer_size_max(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_buffer_size_max")));
00631 int snd_pcm_hw_params_test_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
00632 int snd_pcm_hw_params_set_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
00633 int snd_pcm_hw_params_set_buffer_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00634 int snd_pcm_hw_params_set_buffer_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00635 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);
00636 int snd_pcm_hw_params_set_buffer_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_buffer_size_near")));
00637 int snd_pcm_hw_params_set_buffer_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_buffer_size_first")));
00638 int snd_pcm_hw_params_set_buffer_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_hw_params_set_buffer_size_last")));
00639 
00640 int snd_pcm_hw_params_get_tick_time(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_tick_time")));
00641 int snd_pcm_hw_params_get_tick_time_min(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_tick_time_min")));
00642 int snd_pcm_hw_params_get_tick_time_max(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__ ((weak, alias ("__snd_pcm_hw_params_get_tick_time_max")));
00643 int snd_pcm_hw_params_test_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00644 int snd_pcm_hw_params_set_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00645 int snd_pcm_hw_params_set_tick_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00646 int snd_pcm_hw_params_set_tick_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00647 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);
00648 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__ ((weak, alias ("__snd_pcm_hw_params_set_tick_time_near")));
00649 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__ ((weak, alias ("__snd_pcm_hw_params_set_tick_time_first")));
00650 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__ ((weak, alias ("__snd_pcm_hw_params_set_tick_time_last")));
00651 
00652 #else
00653 
00654 int snd_pcm_hw_params_get_access(const snd_pcm_hw_params_t *params);
00655 int snd_pcm_hw_params_test_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t val);
00656 int snd_pcm_hw_params_set_access(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t val);
00657 snd_pcm_access_t snd_pcm_hw_params_set_access_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00658 snd_pcm_access_t snd_pcm_hw_params_set_access_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00659 int snd_pcm_hw_params_set_access_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask);
00660 void snd_pcm_hw_params_get_access_mask(snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask);
00661 
00662 int snd_pcm_hw_params_get_format(const snd_pcm_hw_params_t *params);
00663 int snd_pcm_hw_params_test_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
00664 int snd_pcm_hw_params_set_format(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
00665 snd_pcm_format_t snd_pcm_hw_params_set_format_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00666 snd_pcm_format_t snd_pcm_hw_params_set_format_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00667 int snd_pcm_hw_params_set_format_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask);
00668 void snd_pcm_hw_params_get_format_mask(snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask);
00669 
00670 int snd_pcm_hw_params_test_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t val);
00671 int snd_pcm_hw_params_get_subformat(const snd_pcm_hw_params_t *params);
00672 int snd_pcm_hw_params_set_subformat(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t val);
00673 snd_pcm_subformat_t snd_pcm_hw_params_set_subformat_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00674 snd_pcm_subformat_t snd_pcm_hw_params_set_subformat_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00675 int snd_pcm_hw_params_set_subformat_mask(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask);
00676 void snd_pcm_hw_params_get_subformat_mask(snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask);
00677 
00678 int snd_pcm_hw_params_get_channels(const snd_pcm_hw_params_t *params);
00679 unsigned int snd_pcm_hw_params_get_channels_min(const snd_pcm_hw_params_t *params);
00680 unsigned int snd_pcm_hw_params_get_channels_max(const snd_pcm_hw_params_t *params);
00681 int snd_pcm_hw_params_test_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
00682 int snd_pcm_hw_params_set_channels(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
00683 int snd_pcm_hw_params_set_channels_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00684 int snd_pcm_hw_params_set_channels_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val);
00685 int snd_pcm_hw_params_set_channels_minmax(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, unsigned int *max);
00686 unsigned int snd_pcm_hw_params_set_channels_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
00687 unsigned int snd_pcm_hw_params_set_channels_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00688 unsigned int snd_pcm_hw_params_set_channels_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00689 
00690 int snd_pcm_hw_params_get_rate(const snd_pcm_hw_params_t *params, int *dir);
00691 unsigned int snd_pcm_hw_params_get_rate_min(const snd_pcm_hw_params_t *params, int *dir);
00692 unsigned int snd_pcm_hw_params_get_rate_max(const snd_pcm_hw_params_t *params, int *dir);
00693 int snd_pcm_hw_params_test_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00694 int snd_pcm_hw_params_set_rate(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00695 int snd_pcm_hw_params_set_rate_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00696 int snd_pcm_hw_params_set_rate_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00697 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);
00698 unsigned int snd_pcm_hw_params_set_rate_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int *dir);
00699 unsigned int snd_pcm_hw_params_set_rate_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00700 unsigned int snd_pcm_hw_params_set_rate_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00701 
00702 int snd_pcm_hw_params_get_period_time(const snd_pcm_hw_params_t *params, int *dir);
00703 unsigned int snd_pcm_hw_params_get_period_time_min(const snd_pcm_hw_params_t *params, int *dir);
00704 unsigned int snd_pcm_hw_params_get_period_time_max(const snd_pcm_hw_params_t *params, int *dir);
00705 int snd_pcm_hw_params_test_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00706 int snd_pcm_hw_params_set_period_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00707 int snd_pcm_hw_params_set_period_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00708 int snd_pcm_hw_params_set_period_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00709 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);
00710 unsigned int snd_pcm_hw_params_set_period_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int *dir);
00711 unsigned int snd_pcm_hw_params_set_period_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00712 unsigned int snd_pcm_hw_params_set_period_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00713 
00714 snd_pcm_sframes_t snd_pcm_hw_params_get_period_size(const snd_pcm_hw_params_t *params, int *dir);
00715 snd_pcm_uframes_t snd_pcm_hw_params_get_period_size_min(const snd_pcm_hw_params_t *params, int *dir);
00716 snd_pcm_uframes_t snd_pcm_hw_params_get_period_size_max(const snd_pcm_hw_params_t *params, int *dir);
00717 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);
00718 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);
00719 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);
00720 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);
00721 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);
00722 snd_pcm_uframes_t 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);
00723 snd_pcm_uframes_t snd_pcm_hw_params_set_period_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00724 snd_pcm_uframes_t snd_pcm_hw_params_set_period_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00725 int snd_pcm_hw_params_set_period_size_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00726 
00727 int snd_pcm_hw_params_get_periods(const snd_pcm_hw_params_t *params, int *dir);
00728 unsigned int snd_pcm_hw_params_get_periods_min(const snd_pcm_hw_params_t *params, int *dir);
00729 unsigned int snd_pcm_hw_params_get_periods_max(const snd_pcm_hw_params_t *params, int *dir);
00730 int snd_pcm_hw_params_test_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00731 int snd_pcm_hw_params_set_periods(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00732 int snd_pcm_hw_params_set_periods_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00733 int snd_pcm_hw_params_set_periods_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00734 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);
00735 unsigned int snd_pcm_hw_params_set_periods_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int *dir);
00736 unsigned int snd_pcm_hw_params_set_periods_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00737 unsigned int snd_pcm_hw_params_set_periods_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00738 int snd_pcm_hw_params_set_periods_integer(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00739 
00740 int snd_pcm_hw_params_get_buffer_time(const snd_pcm_hw_params_t *params, int *dir);
00741 unsigned int snd_pcm_hw_params_get_buffer_time_min(const snd_pcm_hw_params_t *params, int *dir);
00742 unsigned int snd_pcm_hw_params_get_buffer_time_max(const snd_pcm_hw_params_t *params, int *dir);
00743 int snd_pcm_hw_params_test_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00744 int snd_pcm_hw_params_set_buffer_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00745 int snd_pcm_hw_params_set_buffer_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00746 int snd_pcm_hw_params_set_buffer_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00747 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);
00748 unsigned int snd_pcm_hw_params_set_buffer_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int *dir);
00749 unsigned int snd_pcm_hw_params_set_buffer_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00750 unsigned int snd_pcm_hw_params_set_buffer_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00751 
00752 snd_pcm_sframes_t snd_pcm_hw_params_get_buffer_size(const snd_pcm_hw_params_t *params);
00753 snd_pcm_uframes_t snd_pcm_hw_params_get_buffer_size_min(const snd_pcm_hw_params_t *params);
00754 snd_pcm_uframes_t snd_pcm_hw_params_get_buffer_size_max(const snd_pcm_hw_params_t *params);
00755 int snd_pcm_hw_params_test_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
00756 int snd_pcm_hw_params_set_buffer_size(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
00757 int snd_pcm_hw_params_set_buffer_size_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00758 int snd_pcm_hw_params_set_buffer_size_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00759 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);
00760 snd_pcm_uframes_t snd_pcm_hw_params_set_buffer_size_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val);
00761 snd_pcm_uframes_t snd_pcm_hw_params_set_buffer_size_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00762 snd_pcm_uframes_t snd_pcm_hw_params_set_buffer_size_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
00763 
00764 int snd_pcm_hw_params_get_tick_time(const snd_pcm_hw_params_t *params, int *dir);
00765 unsigned int snd_pcm_hw_params_get_tick_time_min(const snd_pcm_hw_params_t *params, int *dir);
00766 unsigned int snd_pcm_hw_params_get_tick_time_max(const snd_pcm_hw_params_t *params, int *dir);
00767 int snd_pcm_hw_params_test_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00768 int snd_pcm_hw_params_set_tick_time(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir);
00769 int snd_pcm_hw_params_set_tick_time_min(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00770 int snd_pcm_hw_params_set_tick_time_max(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
00771 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);
00772 unsigned int snd_pcm_hw_params_set_tick_time_near(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int *dir);
00773 unsigned int snd_pcm_hw_params_set_tick_time_first(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00774 unsigned int snd_pcm_hw_params_set_tick_time_last(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, int *dir);
00775 
00776 #endif /* ALSA_PCM_NEW_HW_PARAMS_API */
00777 #endif /* ALSA_LIBRARY_BUILD */
00778 
00779 int snd_pcm_hw_params_get_min_align(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
00780 
00790 size_t snd_pcm_sw_params_sizeof(void);
00795 #define snd_pcm_sw_params_alloca(ptr) do { assert(ptr); *ptr = (snd_pcm_sw_params_t *) alloca(snd_pcm_sw_params_sizeof()); memset(*ptr, 0, snd_pcm_sw_params_sizeof()); } while (0)
00796 int snd_pcm_sw_params_malloc(snd_pcm_sw_params_t **ptr);
00797 void snd_pcm_sw_params_free(snd_pcm_sw_params_t *obj);
00798 void snd_pcm_sw_params_copy(snd_pcm_sw_params_t *dst, const snd_pcm_sw_params_t *src);
00799 int snd_pcm_sw_params_get_boundary(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
00800 
00801 #ifndef ALSA_LIBRARY_BUILD
00802 #ifdef ALSA_PCM_NEW_SW_PARAMS_API
00803 
00804 int snd_pcm_sw_params_set_tstamp_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_t val);
00805 int snd_pcm_sw_params_get_tstamp_mode(const snd_pcm_sw_params_t *params, snd_pcm_tstamp_t *val) __attribute__ ((weak, alias ("__snd_pcm_sw_params_get_tstamp_mode")));
00806 int snd_pcm_sw_params_set_sleep_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, unsigned int val);
00807 int snd_pcm_sw_params_get_sleep_min(const snd_pcm_sw_params_t *params, unsigned int *val)  __attribute__ ((weak, alias ("__snd_pcm_sw_params_get_sleep_min")));
00808 int snd_pcm_sw_params_set_avail_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00809 int snd_pcm_sw_params_get_avail_min(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val)  __attribute__ ((weak, alias ("__snd_pcm_sw_params_get_avail_min")));
00810 int snd_pcm_sw_params_set_xfer_align(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00811 int snd_pcm_sw_params_get_xfer_align(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_sw_params_get_xfer_align")));;
00812 int snd_pcm_sw_params_set_start_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00813 int snd_pcm_sw_params_get_start_threshold(const snd_pcm_sw_params_t *paramsm, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_sw_params_get_start_threshold")));;
00814 int snd_pcm_sw_params_set_stop_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00815 int snd_pcm_sw_params_get_stop_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_sw_params_get_stop_threshold")));;
00816 int snd_pcm_sw_params_set_silence_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00817 int snd_pcm_sw_params_get_silence_threshold(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_sw_params_get_silence_threshold")));;
00818 int snd_pcm_sw_params_set_silence_size(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00819 int snd_pcm_sw_params_get_silence_size(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__ ((weak, alias ("__snd_pcm_sw_params_get_silence_size")));;
00820 
00821 #else
00822 
00823 int snd_pcm_sw_params_set_tstamp_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_t val);
00824 snd_pcm_tstamp_t snd_pcm_sw_params_get_tstamp_mode(const snd_pcm_sw_params_t *params);
00825 int snd_pcm_sw_params_set_sleep_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, unsigned int val);
00826 unsigned int snd_pcm_sw_params_get_sleep_min(const snd_pcm_sw_params_t *params);
00827 int snd_pcm_sw_params_set_avail_min(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00828 snd_pcm_uframes_t snd_pcm_sw_params_get_avail_min(const snd_pcm_sw_params_t *params);
00829 int snd_pcm_sw_params_set_xfer_align(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00830 snd_pcm_uframes_t snd_pcm_sw_params_get_xfer_align(const snd_pcm_sw_params_t *params);
00831 int snd_pcm_sw_params_set_start_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00832 snd_pcm_uframes_t snd_pcm_sw_params_get_start_threshold(const snd_pcm_sw_params_t *params);
00833 int snd_pcm_sw_params_set_stop_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00834 snd_pcm_uframes_t snd_pcm_sw_params_get_stop_threshold(const snd_pcm_sw_params_t *params);
00835 int snd_pcm_sw_params_set_silence_threshold(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00836 snd_pcm_uframes_t snd_pcm_sw_params_get_silence_threshold(const snd_pcm_sw_params_t *params);
00837 int snd_pcm_sw_params_set_silence_size(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
00838 snd_pcm_uframes_t snd_pcm_sw_params_get_silence_size(const snd_pcm_sw_params_t *params);
00839 
00840 #endif /* ALSA_PCM_NEW_SW_PARAMS_API */
00841 #endif /* ALSA_LIBRARY_BUILD */
00842 
00852 size_t snd_pcm_access_mask_sizeof(void);
00857 #define snd_pcm_access_mask_alloca(ptr) do { assert(ptr); *ptr = (snd_pcm_access_mask_t *) alloca(snd_pcm_access_mask_sizeof()); memset(*ptr, 0, snd_pcm_access_mask_sizeof()); } while (0)
00858 int snd_pcm_access_mask_malloc(snd_pcm_access_mask_t **ptr);
00859 void snd_pcm_access_mask_free(snd_pcm_access_mask_t *obj);
00860 void snd_pcm_access_mask_copy(snd_pcm_access_mask_t *dst, const snd_pcm_access_mask_t *src);
00861 void snd_pcm_access_mask_none(snd_pcm_access_mask_t *mask);
00862 void snd_pcm_access_mask_any(snd_pcm_access_mask_t *mask);
00863 int snd_pcm_access_mask_test(const snd_pcm_access_mask_t *mask, snd_pcm_access_t val);
00864 int snd_pcm_access_mask_empty(const snd_pcm_access_mask_t *mask);
00865 void snd_pcm_access_mask_set(snd_pcm_access_mask_t *mask, snd_pcm_access_t val);
00866 void snd_pcm_access_mask_reset(snd_pcm_access_mask_t *mask, snd_pcm_access_t val);
00867 
00877 size_t snd_pcm_format_mask_sizeof(void);
00882 #define snd_pcm_format_mask_alloca(ptr) do { assert(ptr); *ptr = (snd_pcm_format_mask_t *) alloca(snd_pcm_format_mask_sizeof()); memset(*ptr, 0, snd_pcm_format_mask_sizeof()); } while (0)
00883 int snd_pcm_format_mask_malloc(snd_pcm_format_mask_t **ptr);
00884 void snd_pcm_format_mask_free(snd_pcm_format_mask_t *obj);
00885 void snd_pcm_format_mask_copy(snd_pcm_format_mask_t *dst, const snd_pcm_format_mask_t *src);
00886 void snd_pcm_format_mask_none(snd_pcm_format_mask_t *mask);
00887 void snd_pcm_format_mask_any(snd_pcm_format_mask_t *mask);
00888 int snd_pcm_format_mask_test(const snd_pcm_format_mask_t *mask, snd_pcm_format_t val);
00889 int snd_pcm_format_mask_empty(const snd_pcm_format_mask_t *mask);
00890 void snd_pcm_format_mask_set(snd_pcm_format_mask_t *mask, snd_pcm_format_t val);
00891 void snd_pcm_format_mask_reset(snd_pcm_format_mask_t *mask, snd_pcm_format_t val);
00892 
00902 size_t snd_pcm_subformat_mask_sizeof(void);
00907 #define snd_pcm_subformat_mask_alloca(ptr) do { assert(ptr); *ptr = (snd_pcm_subformat_mask_t *) alloca(snd_pcm_subformat_mask_sizeof()); memset(*ptr, 0, snd_pcm_subformat_mask_sizeof()); } while (0)
00908 int snd_pcm_subformat_mask_malloc(snd_pcm_subformat_mask_t **ptr);
00909 void snd_pcm_subformat_mask_free(snd_pcm_subformat_mask_t *obj);
00910 void snd_pcm_subformat_mask_copy(snd_pcm_subformat_mask_t *dst, const snd_pcm_subformat_mask_t *src);
00911 void snd_pcm_subformat_mask_none(snd_pcm_subformat_mask_t *mask);
00912 void snd_pcm_subformat_mask_any(snd_pcm_subformat_mask_t *mask);
00913 int snd_pcm_subformat_mask_test(const snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val);
00914 int snd_pcm_subformat_mask_empty(const snd_pcm_subformat_mask_t *mask);
00915 void snd_pcm_subformat_mask_set(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val);
00916 void snd_pcm_subformat_mask_reset(snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val);
00917 
00927 size_t snd_pcm_status_sizeof(void);
00932 #define snd_pcm_status_alloca(ptr) do { assert(ptr); *ptr = (snd_pcm_status_t *) alloca(snd_pcm_status_sizeof()); memset(*ptr, 0, snd_pcm_status_sizeof()); } while (0)
00933 int snd_pcm_status_malloc(snd_pcm_status_t **ptr);
00934 void snd_pcm_status_free(snd_pcm_status_t *obj);
00935 void snd_pcm_status_copy(snd_pcm_status_t *dst, const snd_pcm_status_t *src);
00936 snd_pcm_state_t snd_pcm_status_get_state(const snd_pcm_status_t *obj);
00937 void snd_pcm_status_get_trigger_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr);
00938 void snd_pcm_status_get_trigger_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr);
00939 void snd_pcm_status_get_tstamp(const snd_pcm_status_t *obj, snd_timestamp_t *ptr);
00940 void snd_pcm_status_get_htstamp(const snd_pcm_status_t *obj, snd_htimestamp_t *ptr);
00941 snd_pcm_sframes_t snd_pcm_status_get_delay(const snd_pcm_status_t *obj);
00942 snd_pcm_uframes_t snd_pcm_status_get_avail(const snd_pcm_status_t *obj);
00943 snd_pcm_uframes_t snd_pcm_status_get_avail_max(const snd_pcm_status_t *obj);
00944 snd_pcm_uframes_t snd_pcm_status_get_overrange(const snd_pcm_status_t *obj);
00945 
00955 const char *snd_pcm_type_name(snd_pcm_state_t state);
00956 const char *snd_pcm_stream_name(const snd_pcm_stream_t stream);
00957 const char *snd_pcm_access_name(const snd_pcm_access_t _access);
00958 const char *snd_pcm_format_name(const snd_pcm_format_t format);
00959 const char *snd_pcm_format_description(const snd_pcm_format_t format);
00960 const char *snd_pcm_subformat_name(const snd_pcm_subformat_t subformat);
00961 const char *snd_pcm_subformat_description(const snd_pcm_subformat_t subformat);
00962 snd_pcm_format_t snd_pcm_format_value(const char* name);
00963 const char *snd_pcm_tstamp_mode_name(const snd_pcm_tstamp_t mode);
00964 const char *snd_pcm_state_name(const snd_pcm_state_t state);
00965 
00975 int snd_pcm_dump(snd_pcm_t *pcm, snd_output_t *out);
00976 int snd_pcm_dump_hw_setup(snd_pcm_t *pcm, snd_output_t *out);
00977 int snd_pcm_dump_sw_setup(snd_pcm_t *pcm, snd_output_t *out);
00978 int snd_pcm_dump_setup(snd_pcm_t *pcm, snd_output_t *out);
00979 int snd_pcm_hw_params_dump(snd_pcm_hw_params_t *params, snd_output_t *out);
00980 int snd_pcm_sw_params_dump(snd_pcm_sw_params_t *params, snd_output_t *out);
00981 int snd_pcm_status_dump(snd_pcm_status_t *status, snd_output_t *out);
00982 
00992 int snd_pcm_mmap_begin(snd_pcm_t *pcm,
00993                        const snd_pcm_channel_area_t **areas,
00994                        snd_pcm_uframes_t *offset,
00995                        snd_pcm_uframes_t *frames);
00996 snd_pcm_sframes_t snd_pcm_mmap_commit(snd_pcm_t *pcm,
00997                                       snd_pcm_uframes_t offset,
00998                                       snd_pcm_uframes_t frames);
00999 snd_pcm_sframes_t snd_pcm_mmap_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
01000 snd_pcm_sframes_t snd_pcm_mmap_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size);
01001 snd_pcm_sframes_t snd_pcm_mmap_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
01002 snd_pcm_sframes_t snd_pcm_mmap_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);                                                                
01003 
01013 int snd_pcm_format_signed(snd_pcm_format_t format);
01014 int snd_pcm_format_unsigned(snd_pcm_format_t format);
01015 int snd_pcm_format_linear(snd_pcm_format_t format);
01016 int snd_pcm_format_float(snd_pcm_format_t format);
01017 int snd_pcm_format_little_endian(snd_pcm_format_t format);
01018 int snd_pcm_format_big_endian(snd_pcm_format_t format);
01019 int snd_pcm_format_cpu_endian(snd_pcm_format_t format);
01020 int snd_pcm_format_width(snd_pcm_format_t format);                      /* in bits */
01021 int snd_pcm_format_physical_width(snd_pcm_format_t format);             /* in bits */
01022 snd_pcm_format_t snd_pcm_build_linear_format(int width, int pwidth, int unsignd, int big_endian);
01023 ssize_t snd_pcm_format_size(snd_pcm_format_t format, size_t samples);
01024 u_int8_t snd_pcm_format_silence(snd_pcm_format_t format);
01025 u_int16_t snd_pcm_format_silence_16(snd_pcm_format_t format);
01026 u_int32_t snd_pcm_format_silence_32(snd_pcm_format_t format);
01027 u_int64_t snd_pcm_format_silence_64(snd_pcm_format_t format);
01028 int snd_pcm_format_set_silence(snd_pcm_format_t format, void *buf, unsigned int samples);
01029 
01030 snd_pcm_sframes_t snd_pcm_bytes_to_frames(snd_pcm_t *pcm, ssize_t bytes);
01031 ssize_t snd_pcm_frames_to_bytes(snd_pcm_t *pcm, snd_pcm_sframes_t frames);
01032 long snd_pcm_bytes_to_samples(snd_pcm_t *pcm, ssize_t bytes);
01033 ssize_t snd_pcm_samples_to_bytes(snd_pcm_t *pcm, long samples);
01034 
01035 int snd_pcm_area_silence(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset,
01036                          unsigned int samples, snd_pcm_format_t format);
01037 int snd_pcm_areas_silence(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset,
01038                           unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format);
01039 int snd_pcm_area_copy(const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset,
01040                       const snd_pcm_channel_area_t *src_channel, snd_pcm_uframes_t src_offset,
01041                       unsigned int samples, snd_pcm_format_t format);
01042 int snd_pcm_areas_copy(const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset,
01043                        const snd_pcm_channel_area_t *src_channels, snd_pcm_uframes_t src_offset,
01044                        unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format);
01045 
01056 typedef enum _snd_pcm_hook_type {
01057         SND_PCM_HOOK_TYPE_HW_PARAMS = 0,
01058         SND_PCM_HOOK_TYPE_HW_FREE,
01059         SND_PCM_HOOK_TYPE_CLOSE,
01060         SND_PCM_HOOK_TYPE_LAST = SND_PCM_HOOK_TYPE_CLOSE
01061 } snd_pcm_hook_type_t;
01062 
01064 typedef struct _snd_pcm_hook snd_pcm_hook_t;
01066 typedef int (*snd_pcm_hook_func_t)(snd_pcm_hook_t *hook);
01067 snd_pcm_t *snd_pcm_hook_get_pcm(snd_pcm_hook_t *hook);
01068 void *snd_pcm_hook_get_private(snd_pcm_hook_t *hook);
01069 void snd_pcm_hook_set_private(snd_pcm_hook_t *hook, void *private_data);
01070 int snd_pcm_hook_add(snd_pcm_hook_t **hookp, snd_pcm_t *pcm,
01071                      snd_pcm_hook_type_t type,
01072                      snd_pcm_hook_func_t func, void *private_data);
01073 int snd_pcm_hook_remove(snd_pcm_hook_t *hook);
01074 
01085 typedef struct _snd_pcm_scope_ops {
01089         int (*enable)(snd_pcm_scope_t *scope);
01093         void (*disable)(snd_pcm_scope_t *scope);
01097         void (*start)(snd_pcm_scope_t *scope);
01101         void (*stop)(snd_pcm_scope_t *scope);
01105         void (*update)(snd_pcm_scope_t *scope);
01109         void (*reset)(snd_pcm_scope_t *scope);
01113         void (*close)(snd_pcm_scope_t *scope);
01114 } snd_pcm_scope_ops_t;
01115 
01116 snd_pcm_uframes_t snd_pcm_meter_get_bufsize(snd_pcm_t *pcm);
01117 unsigned int snd_pcm_meter_get_channels(snd_pcm_t *pcm);
01118 unsigned int snd_pcm_meter_get_rate(snd_pcm_t *pcm);
01119 snd_pcm_uframes_t snd_pcm_meter_get_now(snd_pcm_t *pcm);
01120 snd_pcm_uframes_t snd_pcm_meter_get_boundary(snd_pcm_t *pcm);
01121 int snd_pcm_meter_add_scope(snd_pcm_t *pcm, snd_pcm_scope_t *scope);
01122 snd_pcm_scope_t *snd_pcm_meter_search_scope(snd_pcm_t *pcm, const char *name);
01123 int snd_pcm_scope_malloc(snd_pcm_scope_t **ptr);
01124 void snd_pcm_scope_set_ops(snd_pcm_scope_t *scope, snd_pcm_scope_ops_t *val);
01125 void snd_pcm_scope_set_name(snd_pcm_scope_t *scope, const char *val);
01126 const char *snd_pcm_scope_get_name(snd_pcm_scope_t *scope);
01127 void *snd_pcm_scope_get_callback_private(snd_pcm_scope_t *scope);
01128 void snd_pcm_scope_set_callback_private(snd_pcm_scope_t *scope, void *val);
01129 int snd_pcm_scope_s16_open(snd_pcm_t *pcm, const char *name,
01130                            snd_pcm_scope_t **scopep);
01131 int16_t *snd_pcm_scope_s16_get_channel_buffer(snd_pcm_scope_t *scope,
01132                                               unsigned int channel);
01133 
01143 /* Deprecated functions, for compatibility */
01144 const char *snd_pcm_start_mode_name(snd_pcm_start_t mode);
01145 const char *snd_pcm_xrun_mode_name(snd_pcm_xrun_t mode);
01146 int snd_pcm_sw_params_set_start_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_start_t val);
01147 snd_pcm_start_t snd_pcm_sw_params_get_start_mode(const snd_pcm_sw_params_t *params);
01148 int snd_pcm_sw_params_set_xrun_mode(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_xrun_t val);
01149 snd_pcm_xrun_t snd_pcm_sw_params_get_xrun_mode(const snd_pcm_sw_params_t *params);
01150 
01153 #ifdef __cplusplus
01154 }
01155 #endif
01156 
01157 #endif /* __ALSA_PCM_H */

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