Application interface library for the ALSA driver. More...
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Data Structures | |
| struct | snd_pcm_audio_tstamp_config_t |
| struct | snd_pcm_audio_tstamp_report_t |
| struct | snd_pcm_channel_area_t |
| union | snd_pcm_sync_id_t |
| struct | snd_pcm_chmap_t |
| struct | snd_pcm_chmap_query_t |
| struct | snd_pcm_scope_ops_t |
Macros | |
| #define | SND_PCM_DLSYM_VERSION _dlsym_pcm_001 |
| #define | SND_PCM_NONBLOCK |
| #define | SND_PCM_ASYNC |
| #define | SND_PCM_ABORT 0x00008000 |
| #define | SND_PCM_NO_AUTO_RESAMPLE 0x00010000 |
| #define | SND_PCM_NO_AUTO_CHANNELS 0x00020000 |
| #define | SND_PCM_NO_AUTO_FORMAT 0x00040000 |
| #define | SND_PCM_NO_SOFTVOL 0x00080000 |
| #define | SND_CHMAP_API_VERSION ((1 << 16) | (0 << 8) | 1) |
| #define | SND_CHMAP_POSITION_MASK 0xffff |
| #define | SND_CHMAP_PHASE_INVERSE (0x01 << 16) |
| #define | SND_CHMAP_DRIVER_SPEC (0x02 << 16) |
| #define | snd_pcm_info_alloca(ptr) |
| allocate an invalid snd_pcm_info_t using standard alloca More... | |
| #define | snd_pcm_hw_params_alloca(ptr) |
| allocate an invalid snd_pcm_hw_params_t using standard alloca More... | |
| #define | snd_pcm_sw_params_alloca(ptr) |
| allocate an invalid snd_pcm_sw_params_t using standard alloca More... | |
| #define | snd_pcm_access_mask_alloca(ptr) |
| allocate an empty snd_pcm_access_mask_t using standard alloca More... | |
| #define | snd_pcm_format_mask_alloca(ptr) |
| allocate an empty snd_pcm_format_mask_t using standard alloca More... | |
| #define | snd_pcm_subformat_mask_alloca(ptr) |
| allocate an empty snd_pcm_subformat_mask_t using standard alloca More... | |
| #define | snd_pcm_status_alloca(ptr) |
| allocate an invalid snd_pcm_status_t using standard alloca More... | |
Typedefs | |
| typedef struct _snd_pcm_info | snd_pcm_info_t |
| typedef struct _snd_pcm_hw_params | snd_pcm_hw_params_t |
| typedef struct _snd_pcm_sw_params | snd_pcm_sw_params_t |
| typedef struct _snd_pcm_status | snd_pcm_status_t |
| typedef struct _snd_pcm_access_mask | snd_pcm_access_mask_t |
| typedef struct _snd_pcm_format_mask | snd_pcm_format_mask_t |
| typedef struct _snd_pcm_subformat_mask | snd_pcm_subformat_mask_t |
| typedef unsigned long | snd_pcm_uframes_t |
| typedef long | snd_pcm_sframes_t |
| typedef struct _snd_pcm | snd_pcm_t |
| typedef enum _snd_pcm_type | snd_pcm_type_t |
| typedef struct _snd_pcm_scope | snd_pcm_scope_t |
| typedef struct _snd_pcm_hook | snd_pcm_hook_t |
| typedef int(* | snd_pcm_hook_func_t) (snd_pcm_hook_t *hook) |
Functions | |
| int | snd_pcm_open (snd_pcm_t **pcm, const char *name, snd_pcm_stream_t stream, int mode) |
| Opens a PCM. More... | |
| int | snd_pcm_open_lconf (snd_pcm_t **pcm, const char *name, snd_pcm_stream_t stream, int mode, snd_config_t *lconf) |
| Opens a PCM using local configuration. More... | |
| int | snd_pcm_open_fallback (snd_pcm_t **pcm, snd_config_t *root, const char *name, const char *orig_name, snd_pcm_stream_t stream, int mode) |
| Opens a fallback PCM. More... | |
| int | snd_pcm_close (snd_pcm_t *pcm) |
| close PCM handle More... | |
| const char * | snd_pcm_name (snd_pcm_t *pcm) |
| get identifier of PCM handle More... | |
| snd_pcm_type_t | snd_pcm_type (snd_pcm_t *pcm) |
| get type of PCM handle More... | |
| snd_pcm_stream_t | snd_pcm_stream (snd_pcm_t *pcm) |
| get stream for a PCM handle More... | |
| int | snd_pcm_poll_descriptors_count (snd_pcm_t *pcm) |
| get count of poll descriptors for PCM handle More... | |
| int | snd_pcm_poll_descriptors (snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space) |
| get poll descriptors More... | |
| int | snd_pcm_poll_descriptors_revents (snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents) |
| get returned events from poll descriptors More... | |
| int | snd_pcm_nonblock (snd_pcm_t *pcm, int nonblock) |
| set nonblock mode More... | |
| int | snd_async_add_pcm_handler (snd_async_handler_t **handler, snd_pcm_t *pcm, snd_async_callback_t callback, void *private_data) |
| Add an async handler for a PCM. More... | |
| snd_pcm_t * | snd_async_handler_get_pcm (snd_async_handler_t *handler) |
| Return PCM handle related to an async handler. More... | |
| int | snd_pcm_info (snd_pcm_t *pcm, snd_pcm_info_t *info) |
| Obtain general (static) information for PCM handle. More... | |
| int | snd_pcm_hw_params_current (snd_pcm_t *pcm, snd_pcm_hw_params_t *params) |
| Retreive current PCM hardware configuration chosen with snd_pcm_hw_params. More... | |
| int | snd_pcm_hw_params (snd_pcm_t *pcm, snd_pcm_hw_params_t *params) |
| Install one PCM hardware configuration chosen from a configuration space and snd_pcm_prepare it. More... | |
| int | snd_pcm_hw_free (snd_pcm_t *pcm) |
| Remove PCM hardware configuration and free associated resources. More... | |
| int | snd_pcm_sw_params_current (snd_pcm_t *pcm, snd_pcm_sw_params_t *params) |
| Return current software configuration for a PCM. More... | |
| int | snd_pcm_sw_params (snd_pcm_t *pcm, snd_pcm_sw_params_t *params) |
| Install PCM software configuration defined by params. More... | |
| int | snd_pcm_prepare (snd_pcm_t *pcm) |
| Prepare PCM for use. More... | |
| int | snd_pcm_reset (snd_pcm_t *pcm) |
| Reset PCM position. More... | |
| int | snd_pcm_status (snd_pcm_t *pcm, snd_pcm_status_t *status) |
| Obtain status (runtime) information for PCM handle. More... | |
| int | snd_pcm_start (snd_pcm_t *pcm) |
| Start a PCM. More... | |
| int | snd_pcm_drop (snd_pcm_t *pcm) |
| Stop a PCM dropping pending frames. More... | |
| int | snd_pcm_drain (snd_pcm_t *pcm) |
| Stop a PCM preserving pending frames. More... | |
| int | snd_pcm_pause (snd_pcm_t *pcm, int enable) |
| Pause/resume PCM. More... | |
| snd_pcm_state_t | snd_pcm_state (snd_pcm_t *pcm) |
| Return PCM state. More... | |
| int | snd_pcm_hwsync (snd_pcm_t *pcm) |
| (DEPRECATED) Synchronize stream position with hardware More... | |
| int | snd_pcm_delay (snd_pcm_t *pcm, snd_pcm_sframes_t *delayp) |
| Obtain delay for a running PCM handle. More... | |
| int | snd_pcm_resume (snd_pcm_t *pcm) |
| Resume from suspend, no samples are lost. More... | |
| int | snd_pcm_htimestamp (snd_pcm_t *pcm, snd_pcm_uframes_t *avail, snd_htimestamp_t *tstamp) |
| Obtain last position update hi-res timestamp. More... | |
| snd_pcm_sframes_t | snd_pcm_avail (snd_pcm_t *pcm) |
| Return number of frames ready to be read (capture) / written (playback) More... | |
| snd_pcm_sframes_t | snd_pcm_avail_update (snd_pcm_t *pcm) |
| Return number of frames ready to be read (capture) / written (playback) More... | |
| int | snd_pcm_avail_delay (snd_pcm_t *pcm, snd_pcm_sframes_t *availp, snd_pcm_sframes_t *delayp) |
| Combine snd_pcm_avail and snd_pcm_delay functions. More... | |
| snd_pcm_sframes_t | snd_pcm_rewindable (snd_pcm_t *pcm) |
| Get safe count of frames which can be rewinded. More... | |
| snd_pcm_sframes_t | snd_pcm_rewind (snd_pcm_t *pcm, snd_pcm_uframes_t frames) |
| Move application frame position backward. More... | |
| snd_pcm_sframes_t | snd_pcm_forwardable (snd_pcm_t *pcm) |
| Get safe count of frames which can be forwarded. More... | |
| snd_pcm_sframes_t | snd_pcm_forward (snd_pcm_t *pcm, snd_pcm_uframes_t frames) |
| Move application frame position forward. More... | |
| snd_pcm_sframes_t | snd_pcm_writei (snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size) |
| Write interleaved frames to a PCM. More... | |
| snd_pcm_sframes_t | snd_pcm_readi (snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size) |
| Read interleaved frames from a PCM. More... | |
| snd_pcm_sframes_t | snd_pcm_writen (snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size) |
| Write non interleaved frames to a PCM. More... | |
| snd_pcm_sframes_t | snd_pcm_readn (snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size) |
| Read non interleaved frames to a PCM. More... | |
| int | snd_pcm_wait (snd_pcm_t *pcm, int timeout) |
| Wait for a PCM to become ready. More... | |
| int | snd_pcm_link (snd_pcm_t *pcm1, snd_pcm_t *pcm2) |
| Link two PCMs. More... | |
| int | snd_pcm_unlink (snd_pcm_t *pcm) |
| Remove a PCM from a linked group. More... | |
| snd_pcm_chmap_query_t ** | snd_pcm_query_chmaps (snd_pcm_t *pcm) |
| snd_pcm_chmap_query_t ** | snd_pcm_query_chmaps_from_hw (int card, int dev, int subdev, snd_pcm_stream_t stream) |
| void | snd_pcm_free_chmaps (snd_pcm_chmap_query_t **maps) |
| snd_pcm_chmap_t * | snd_pcm_get_chmap (snd_pcm_t *pcm) |
| int | snd_pcm_set_chmap (snd_pcm_t *pcm, const snd_pcm_chmap_t *map) |
| const char * | snd_pcm_chmap_type_name (enum snd_pcm_chmap_type val) |
| const char * | snd_pcm_chmap_name (enum snd_pcm_chmap_position val) |
| const char * | snd_pcm_chmap_long_name (enum snd_pcm_chmap_position val) |
| int | snd_pcm_chmap_print (const snd_pcm_chmap_t *map, size_t maxlen, char *buf) |
| unsigned int | snd_pcm_chmap_from_string (const char *str) |
| snd_pcm_chmap_t * | snd_pcm_chmap_parse_string (const char *str) |
| int | snd_pcm_recover (snd_pcm_t *pcm, int err, int silent) |
| Recover the stream state from an error or suspend. More... | |
| int | snd_pcm_set_params (snd_pcm_t *pcm, snd_pcm_format_t format, snd_pcm_access_t access, unsigned int channels, unsigned int rate, int soft_resample, unsigned int latency) |
| Set the hardware and software parameters in a simple way. More... | |
| int | snd_pcm_get_params (snd_pcm_t *pcm, snd_pcm_uframes_t *buffer_size, snd_pcm_uframes_t *period_size) |
| Get the transfer size parameters in a simple way. More... | |
| size_t | snd_pcm_info_sizeof (void) |
| get size of snd_pcm_info_t More... | |
| int | snd_pcm_info_malloc (snd_pcm_info_t **ptr) |
| allocate an invalid snd_pcm_info_t using standard malloc More... | |
| void | snd_pcm_info_free (snd_pcm_info_t *obj) |
| frees a previously allocated snd_pcm_info_t More... | |
| void | snd_pcm_info_copy (snd_pcm_info_t *dst, const snd_pcm_info_t *src) |
| copy one snd_pcm_info_t to another More... | |
| unsigned int | snd_pcm_info_get_device (const snd_pcm_info_t *obj) |
| Get device from a PCM info container. More... | |
| unsigned int | snd_pcm_info_get_subdevice (const snd_pcm_info_t *obj) |
| Get subdevice from a PCM info container. More... | |
| snd_pcm_stream_t | snd_pcm_info_get_stream (const snd_pcm_info_t *obj) |
| Get stream (direction) from a PCM info container. More... | |
| int | snd_pcm_info_get_card (const snd_pcm_info_t *obj) |
| Get card from a PCM info container. More... | |
| const char * | snd_pcm_info_get_id (const snd_pcm_info_t *obj) |
| Get id from a PCM info container. More... | |
| const char * | snd_pcm_info_get_name (const snd_pcm_info_t *obj) |
| Get name from a PCM info container. More... | |
| const char * | snd_pcm_info_get_subdevice_name (const snd_pcm_info_t *obj) |
| Get subdevice name from a PCM info container. More... | |
| snd_pcm_class_t | snd_pcm_info_get_class (const snd_pcm_info_t *obj) |
| Get class from a PCM info container. More... | |
| snd_pcm_subclass_t | snd_pcm_info_get_subclass (const snd_pcm_info_t *obj) |
| Get subclass from a PCM info container. More... | |
| unsigned int | snd_pcm_info_get_subdevices_count (const snd_pcm_info_t *obj) |
| Get subdevices count from a PCM info container. More... | |
| unsigned int | snd_pcm_info_get_subdevices_avail (const snd_pcm_info_t *obj) |
| Get available subdevices count from a PCM info container. More... | |
| snd_pcm_sync_id_t | snd_pcm_info_get_sync (const snd_pcm_info_t *obj) |
| Get hardware synchronization ID from a PCM info container. More... | |
| void | snd_pcm_info_set_device (snd_pcm_info_t *obj, unsigned int val) |
| Set wanted device inside a PCM info container (see snd_ctl_pcm_info) More... | |
| void | snd_pcm_info_set_subdevice (snd_pcm_info_t *obj, unsigned int val) |
| Set wanted subdevice inside a PCM info container (see snd_ctl_pcm_info) More... | |
| void | snd_pcm_info_set_stream (snd_pcm_info_t *obj, snd_pcm_stream_t val) |
| Set wanted stream inside a PCM info container (see snd_ctl_pcm_info) More... | |
| int | snd_pcm_hw_params_any (snd_pcm_t *pcm, snd_pcm_hw_params_t *params) |
| Fill params with a full configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_can_mmap_sample_resolution (const snd_pcm_hw_params_t *params) |
| Check if hardware supports sample-resolution mmap for given configuration. More... | |
| int | snd_pcm_hw_params_is_double (const snd_pcm_hw_params_t *params) |
| Check if hardware does double buffering for start/stop for given configuration. More... | |
| int | snd_pcm_hw_params_is_batch (const snd_pcm_hw_params_t *params) |
| Check if hardware does double buffering for data transfers for given configuration. More... | |
| int | snd_pcm_hw_params_is_block_transfer (const snd_pcm_hw_params_t *params) |
| Check if hardware does block transfers for samples for given configuration. More... | |
| int | snd_pcm_hw_params_is_monotonic (const snd_pcm_hw_params_t *params) |
| Check if timestamps are monotonic for given configuration. More... | |
| int | snd_pcm_hw_params_can_overrange (const snd_pcm_hw_params_t *params) |
| Check if hardware supports overrange detection. More... | |
| int | snd_pcm_hw_params_can_pause (const snd_pcm_hw_params_t *params) |
| Check if hardware supports pause. More... | |
| int | snd_pcm_hw_params_can_resume (const snd_pcm_hw_params_t *params) |
| Check if hardware supports resume. More... | |
| int | snd_pcm_hw_params_is_half_duplex (const snd_pcm_hw_params_t *params) |
| Check if hardware does half-duplex only. More... | |
| int | snd_pcm_hw_params_is_joint_duplex (const snd_pcm_hw_params_t *params) |
| Check if hardware does joint-duplex (playback and capture are somewhat correlated) More... | |
| int | snd_pcm_hw_params_can_sync_start (const snd_pcm_hw_params_t *params) |
| Check if hardware supports synchronized start with sample resolution. More... | |
| int | snd_pcm_hw_params_can_disable_period_wakeup (const snd_pcm_hw_params_t *params) |
| Check if hardware can disable period wakeups. More... | |
| int | snd_pcm_hw_params_supports_audio_wallclock_ts (const snd_pcm_hw_params_t *params) |
| Check if hardware supports audio wallclock timestamps. More... | |
| int | snd_pcm_hw_params_supports_audio_ts_type (const snd_pcm_hw_params_t *params, int type) |
| Check if hardware supports type of audio timestamps. More... | |
| int | snd_pcm_hw_params_get_rate_numden (const snd_pcm_hw_params_t *params, unsigned int *rate_num, unsigned int *rate_den) |
| Get rate exact info from a configuration space. More... | |
| int | snd_pcm_hw_params_get_sbits (const snd_pcm_hw_params_t *params) |
| Get sample resolution info from a configuration space. More... | |
| int | snd_pcm_hw_params_get_fifo_size (const snd_pcm_hw_params_t *params) |
| Get hardware FIFO size info from a configuration space. More... | |
| size_t | snd_pcm_hw_params_sizeof (void) |
| get size of snd_pcm_hw_params_t More... | |
| int | snd_pcm_hw_params_malloc (snd_pcm_hw_params_t **ptr) |
| allocate an invalid snd_pcm_hw_params_t using standard malloc More... | |
| void | snd_pcm_hw_params_free (snd_pcm_hw_params_t *obj) |
| frees a previously allocated snd_pcm_hw_params_t More... | |
| void | snd_pcm_hw_params_copy (snd_pcm_hw_params_t *dst, const snd_pcm_hw_params_t *src) |
| copy one snd_pcm_hw_params_t to another More... | |
| int | snd_pcm_hw_params_get_access (const snd_pcm_hw_params_t *params, snd_pcm_access_t *_access) |
| Extract access type from a configuration space. More... | |
| int | snd_pcm_hw_params_test_access (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access) |
| Verify if an access type is available inside a configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_set_access (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t _access) |
| Restrict a configuration space to contain only one access type. More... | |
| int | snd_pcm_hw_params_set_access_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access) |
| Restrict a configuration space to contain only its first access type. More... | |
| int | snd_pcm_hw_params_set_access_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t *_access) |
| Restrict a configuration space to contain only its last access type. More... | |
| int | snd_pcm_hw_params_set_access_mask (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask) |
| Restrict a configuration space to contain only a set of access types. More... | |
| int | snd_pcm_hw_params_get_access_mask (snd_pcm_hw_params_t *params, snd_pcm_access_mask_t *mask) |
| Get access mask from a configuration space. More... | |
| int | snd_pcm_hw_params_get_format (const snd_pcm_hw_params_t *params, snd_pcm_format_t *val) |
| Extract format from a configuration space. More... | |
| int | snd_pcm_hw_params_test_format (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val) |
| Verify if a format is available inside a configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_set_format (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val) |
| Restrict a configuration space to contain only one format. More... | |
| int | snd_pcm_hw_params_set_format_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format) |
| Restrict a configuration space to contain only its first format. More... | |
| int | snd_pcm_hw_params_set_format_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t *format) |
| Restrict a configuration space to contain only its last format. More... | |
| int | snd_pcm_hw_params_set_format_mask (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask) |
| Restrict a configuration space to contain only a set of formats. More... | |
| void | snd_pcm_hw_params_get_format_mask (snd_pcm_hw_params_t *params, snd_pcm_format_mask_t *mask) |
| Get format mask from a configuration space. More... | |
| int | snd_pcm_hw_params_get_subformat (const snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat) |
| Extract subformat from a configuration space. More... | |
| int | snd_pcm_hw_params_test_subformat (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat) |
| Verify if a subformat is available inside a configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_set_subformat (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t subformat) |
| Restrict a configuration space to contain only one subformat. More... | |
| int | snd_pcm_hw_params_set_subformat_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat) |
| Restrict a configuration space to contain only its first subformat. More... | |
| int | snd_pcm_hw_params_set_subformat_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_t *subformat) |
| Restrict a configuration space to contain only its last subformat. More... | |
| int | snd_pcm_hw_params_set_subformat_mask (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask) |
| Restrict a configuration space to contain only a set of subformats. More... | |
| void | snd_pcm_hw_params_get_subformat_mask (snd_pcm_hw_params_t *params, snd_pcm_subformat_mask_t *mask) |
| Get subformat mask from a configuration space. More... | |
| int | snd_pcm_hw_params_get_channels (const snd_pcm_hw_params_t *params, unsigned int *val) |
| Extract channels from a configuration space. More... | |
| int | snd_pcm_hw_params_get_channels_min (const snd_pcm_hw_params_t *params, unsigned int *val) |
| Extract minimum channels count from a configuration space. More... | |
| int | snd_pcm_hw_params_get_channels_max (const snd_pcm_hw_params_t *params, unsigned int *val) |
| Extract maximum channels count from a configuration space. More... | |
| int | snd_pcm_hw_params_test_channels (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val) |
| Verify if a channels count is available inside a configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_set_channels (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val) |
| Restrict a configuration space to contain only one channels count. More... | |
| int | snd_pcm_hw_params_set_channels_min (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) |
| Restrict a configuration space with a minimum channels count. More... | |
| int | snd_pcm_hw_params_set_channels_max (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) |
| Restrict a configuration space with a maximum channels count. More... | |
| int | snd_pcm_hw_params_set_channels_minmax (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, unsigned int *max) |
| Restrict a configuration space to have channels counts in a given range. More... | |
| int | snd_pcm_hw_params_set_channels_near (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) |
| Restrict a configuration space to have channels count nearest to a target. More... | |
| int | snd_pcm_hw_params_set_channels_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) |
| Restrict a configuration space to contain only its minimum channels count. More... | |
| int | snd_pcm_hw_params_set_channels_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) |
| Restrict a configuration space to contain only its maximum channels count. More... | |
| int | snd_pcm_hw_params_get_rate (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract rate from a configuration space. More... | |
| int | snd_pcm_hw_params_get_rate_min (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract minimum rate from a configuration space. More... | |
| int | snd_pcm_hw_params_get_rate_max (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract maximum rate from a configuration space. More... | |
| int | snd_pcm_hw_params_test_rate (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) |
| Verify if a rate is available inside a configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_set_rate (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) |
| Restrict a configuration space to contain only one rate. More... | |
| int | snd_pcm_hw_params_set_rate_min (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space with a minimum rate. More... | |
| int | snd_pcm_hw_params_set_rate_max (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space with a maximum rate. More... | |
| int | snd_pcm_hw_params_set_rate_minmax (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir) |
| Restrict a configuration space to have rates in a given range. More... | |
| int | snd_pcm_hw_params_set_rate_near (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to have rate nearest to a target. More... | |
| int | snd_pcm_hw_params_set_rate_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to contain only its minimum rate. More... | |
| int | snd_pcm_hw_params_set_rate_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to contain only its maximum rate. More... | |
| int | snd_pcm_hw_params_set_rate_resample (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val) |
| Restrict a configuration space to contain only real hardware rates. More... | |
| int | snd_pcm_hw_params_get_rate_resample (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) |
| Extract resample state from a configuration space. More... | |
| int | snd_pcm_hw_params_set_export_buffer (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val) |
| Restrict a configuration space to allow the buffer to be accessible from outside. More... | |
| int | snd_pcm_hw_params_get_export_buffer (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) |
| Extract buffer accessibility from a configuration space. More... | |
| int | snd_pcm_hw_params_set_period_wakeup (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val) |
| Restrict a configuration space to settings without period wakeups. More... | |
| int | snd_pcm_hw_params_get_period_wakeup (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val) |
| Extract period wakeup flag from a configuration space. More... | |
| int | snd_pcm_hw_params_get_period_time (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract period time from a configuration space. More... | |
| int | snd_pcm_hw_params_get_period_time_min (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract minimum period time from a configuration space. More... | |
| int | snd_pcm_hw_params_get_period_time_max (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract maximum period time from a configuration space. More... | |
| int | snd_pcm_hw_params_test_period_time (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) |
| Verify if a period time is available inside a configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_set_period_time (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) |
| Restrict a configuration space to contain only one period time. More... | |
| int | snd_pcm_hw_params_set_period_time_min (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space with a minimum period time. More... | |
| int | snd_pcm_hw_params_set_period_time_max (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space with a maximum period time. More... | |
| int | snd_pcm_hw_params_set_period_time_minmax (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir) |
| Restrict a configuration space to have period times in a given range. More... | |
| int | snd_pcm_hw_params_set_period_time_near (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to have period time nearest to a target. More... | |
| int | snd_pcm_hw_params_set_period_time_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to contain only its minimum period time. More... | |
| int | snd_pcm_hw_params_set_period_time_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to contain only its maximum period time. More... | |
| int | snd_pcm_hw_params_get_period_size (const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir) |
| Extract period size from a configuration space. More... | |
| int | snd_pcm_hw_params_get_period_size_min (const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir) |
| Extract minimum period size from a configuration space. More... | |
| int | snd_pcm_hw_params_get_period_size_max (const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir) |
| Extract maximum period size from a configuration space. More... | |
| int | snd_pcm_hw_params_test_period_size (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val, int dir) |
| Verify if a period size is available inside a configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_set_period_size (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val, int dir) |
| Restrict a configuration space to contain only one period size. More... | |
| int | snd_pcm_hw_params_set_period_size_min (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir) |
| Restrict a configuration space with a minimum period size. More... | |
| int | snd_pcm_hw_params_set_period_size_max (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir) |
| Restrict a configuration space with a maximum period size. More... | |
| int | snd_pcm_hw_params_set_period_size_minmax (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *min, int *mindir, snd_pcm_uframes_t *max, int *maxdir) |
| Restrict a configuration space to have period sizes in a given range. More... | |
| int | snd_pcm_hw_params_set_period_size_near (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir) |
| Restrict a configuration space to have period size nearest to a target. More... | |
| int | snd_pcm_hw_params_set_period_size_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir) |
| Restrict a configuration space to contain only its minimum period size. More... | |
| int | snd_pcm_hw_params_set_period_size_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir) |
| Restrict a configuration space to contain only its maximum period size. More... | |
| int | snd_pcm_hw_params_set_period_size_integer (snd_pcm_t *pcm, snd_pcm_hw_params_t *params) |
| Restrict a configuration space to contain only integer period sizes. More... | |
| int | snd_pcm_hw_params_get_periods (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract periods from a configuration space. More... | |
| int | snd_pcm_hw_params_get_periods_min (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract minimum periods count from a configuration space. More... | |
| int | snd_pcm_hw_params_get_periods_max (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract maximum periods count from a configuration space. More... | |
| int | snd_pcm_hw_params_test_periods (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) |
| Verify if a periods count is available inside a configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_set_periods (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) |
| Restrict a configuration space to contain only one periods count. More... | |
| int | snd_pcm_hw_params_set_periods_min (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space with a minimum periods count. More... | |
| int | snd_pcm_hw_params_set_periods_max (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space with a maximum periods count. More... | |
| int | snd_pcm_hw_params_set_periods_minmax (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir) |
| Restrict a configuration space to have periods counts in a given range. More... | |
| int | snd_pcm_hw_params_set_periods_near (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to have periods count nearest to a target. More... | |
| int | snd_pcm_hw_params_set_periods_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to contain only its minimum periods count. More... | |
| int | snd_pcm_hw_params_set_periods_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to contain only its maximum periods count. More... | |
| int | snd_pcm_hw_params_set_periods_integer (snd_pcm_t *pcm, snd_pcm_hw_params_t *params) |
| Restrict a configuration space to contain only integer periods counts. More... | |
| int | snd_pcm_hw_params_get_buffer_time (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract buffer time from a configuration space. More... | |
| int | snd_pcm_hw_params_get_buffer_time_min (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract minimum buffer time from a configuration space. More... | |
| int | snd_pcm_hw_params_get_buffer_time_max (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Extract maximum buffer time from a configuration space. More... | |
| int | snd_pcm_hw_params_test_buffer_time (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) |
| Verify if a buffer time is available inside a configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_set_buffer_time (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) |
| Restrict a configuration space to contain only one buffer time. More... | |
| int | snd_pcm_hw_params_set_buffer_time_min (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space with a minimum buffer time. More... | |
| int | snd_pcm_hw_params_set_buffer_time_max (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space with a maximum buffer time. More... | |
| int | snd_pcm_hw_params_set_buffer_time_minmax (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir) |
| Restrict a configuration space to have buffer times in a given range. More... | |
| int | snd_pcm_hw_params_set_buffer_time_near (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to have buffer time nearest to a target. More... | |
| int | snd_pcm_hw_params_set_buffer_time_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to contain only its minimum buffer time. More... | |
| int | snd_pcm_hw_params_set_buffer_time_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) |
| Restrict a configuration space to contain only its maximum buffered time. More... | |
| int | snd_pcm_hw_params_get_buffer_size (const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) |
| Extract buffer size from a configuration space. More... | |
| int | snd_pcm_hw_params_get_buffer_size_min (const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) |
| Extract minimum buffer size from a configuration space. More... | |
| int | snd_pcm_hw_params_get_buffer_size_max (const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) |
| Extract maximum buffer size from a configuration space. More... | |
| int | snd_pcm_hw_params_test_buffer_size (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val) |
| Verify if a buffer size is available inside a configuration space for a PCM. More... | |
| int | snd_pcm_hw_params_set_buffer_size (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t val) |
| Restrict a configuration space to contain only one buffer size. More... | |
| int | snd_pcm_hw_params_set_buffer_size_min (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) |
| Restrict a configuration space with a minimum buffer size. More... | |
| int | snd_pcm_hw_params_set_buffer_size_max (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) |
| Restrict a configuration space with a maximum buffer size. More... | |
| int | snd_pcm_hw_params_set_buffer_size_minmax (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *min, snd_pcm_uframes_t *max) |
| Restrict a configuration space to have buffer sizes in a given range. More... | |
| int | snd_pcm_hw_params_set_buffer_size_near (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) |
| Restrict a configuration space to have buffer size nearest to a target. More... | |
| int | snd_pcm_hw_params_set_buffer_size_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) |
| Restrict a configuration space to contain only its minimum buffer size. More... | |
| int | snd_pcm_hw_params_set_buffer_size_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) |
| Restrict a configuration space to contain only its maximum buffer size. More... | |
| int | snd_pcm_hw_params_get_min_align (const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val) |
| Get the minimum transfer align value in samples. More... | |
| size_t | snd_pcm_sw_params_sizeof (void) |
| get size of snd_pcm_sw_params_t More... | |
| int | snd_pcm_sw_params_malloc (snd_pcm_sw_params_t **ptr) |
| allocate an invalid snd_pcm_sw_params_t using standard malloc More... | |
| void | snd_pcm_sw_params_free (snd_pcm_sw_params_t *obj) |
| frees a previously allocated snd_pcm_sw_params_t More... | |
| void | snd_pcm_sw_params_copy (snd_pcm_sw_params_t *dst, const snd_pcm_sw_params_t *src) |
| copy one snd_pcm_sw_params_t to another More... | |
| int | snd_pcm_sw_params_get_boundary (const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) |
| Get boundary for ring pointers from a software configuration container. More... | |
| int | snd_pcm_sw_params_set_tstamp_mode (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_t val) |
| Set timestamp mode inside a software configuration container. More... | |
| int | snd_pcm_sw_params_get_tstamp_mode (const snd_pcm_sw_params_t *params, snd_pcm_tstamp_t *val) |
| Get timestamp mode from a software configuration container. More... | |
| int | snd_pcm_sw_params_set_tstamp_type (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_tstamp_type_t val) |
| Set timestamp type inside a software configuration container. More... | |
| int | snd_pcm_sw_params_get_tstamp_type (const snd_pcm_sw_params_t *params, snd_pcm_tstamp_type_t *val) |
| Get timestamp type from a software configuration container. More... | |
| int | snd_pcm_sw_params_set_avail_min (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val) |
| Set avail min inside a software configuration container. More... | |
| int | snd_pcm_sw_params_get_avail_min (const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) |
| Get avail min from a software configuration container. More... | |
| int | snd_pcm_sw_params_set_period_event (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, int val) |
| Set period event inside a software configuration container. More... | |
| int | snd_pcm_sw_params_get_period_event (const snd_pcm_sw_params_t *params, int *val) |
| Get period event from a software configuration container. More... | |
| int | snd_pcm_sw_params_set_start_threshold (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val) |
| Set start threshold inside a software configuration container. More... | |
| int | snd_pcm_sw_params_get_start_threshold (const snd_pcm_sw_params_t *paramsm, snd_pcm_uframes_t *val) |
| Get start threshold from a software configuration container. More... | |
| int | snd_pcm_sw_params_set_stop_threshold (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val) |
| Set stop threshold inside a software configuration container. More... | |
| int | snd_pcm_sw_params_get_stop_threshold (const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) |
| Get stop threshold from a software configuration container. More... | |
| int | snd_pcm_sw_params_set_silence_threshold (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val) |
| Set silence threshold inside a software configuration container. More... | |
| int | snd_pcm_sw_params_get_silence_threshold (const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) |
| Get silence threshold from a software configuration container. More... | |
| int | snd_pcm_sw_params_set_silence_size (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val) |
| Set silence size inside a software configuration container. More... | |
| int | snd_pcm_sw_params_get_silence_size (const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) |
| Get silence size from a software configuration container. More... | |
| size_t | snd_pcm_access_mask_sizeof (void) |
| get size of snd_pcm_access_mask_t More... | |
| int | snd_pcm_access_mask_malloc (snd_pcm_access_mask_t **ptr) |
| allocate an empty snd_pcm_access_mask_t using standard malloc More... | |
| void | snd_pcm_access_mask_free (snd_pcm_access_mask_t *obj) |
| frees a previously allocated snd_pcm_access_mask_t More... | |
| void | snd_pcm_access_mask_copy (snd_pcm_access_mask_t *dst, const snd_pcm_access_mask_t *src) |
| copy one snd_pcm_access_mask_t to another More... | |
| void | snd_pcm_access_mask_none (snd_pcm_access_mask_t *mask) |
| reset all bits in a snd_pcm_access_mask_t More... | |
| void | snd_pcm_access_mask_any (snd_pcm_access_mask_t *mask) |
| set all bits in a snd_pcm_access_mask_t More... | |
| int | snd_pcm_access_mask_test (const snd_pcm_access_mask_t *mask, snd_pcm_access_t val) |
| test the presence of an access type in a snd_pcm_access_mask_t More... | |
| int | snd_pcm_access_mask_empty (const snd_pcm_access_mask_t *mask) |
| test, if given a snd_pcm_access_mask_t is empty More... | |
| void | snd_pcm_access_mask_set (snd_pcm_access_mask_t *mask, snd_pcm_access_t val) |
| make an access type present in a snd_pcm_access_mask_t More... | |
| void | snd_pcm_access_mask_reset (snd_pcm_access_mask_t *mask, snd_pcm_access_t val) |
| make an access type missing from a snd_pcm_access_mask_t More... | |
| size_t | snd_pcm_format_mask_sizeof (void) |
| get size of snd_pcm_format_mask_t More... | |
| int | snd_pcm_format_mask_malloc (snd_pcm_format_mask_t **ptr) |
| allocate an empty snd_pcm_format_mask_t using standard malloc More... | |
| void | snd_pcm_format_mask_free (snd_pcm_format_mask_t *obj) |
| frees a previously allocated snd_pcm_format_mask_t More... | |
| void | snd_pcm_format_mask_copy (snd_pcm_format_mask_t *dst, const snd_pcm_format_mask_t *src) |
| copy one snd_pcm_format_mask_t to another More... | |
| void | snd_pcm_format_mask_none (snd_pcm_format_mask_t *mask) |
| reset all bits in a snd_pcm_format_mask_t More... | |
| void | snd_pcm_format_mask_any (snd_pcm_format_mask_t *mask) |
| set all bits in a snd_pcm_format_mask_t More... | |
| int | snd_pcm_format_mask_test (const snd_pcm_format_mask_t *mask, snd_pcm_format_t val) |
| test the presence of a format in a snd_pcm_format_mask_t More... | |
| int | snd_pcm_format_mask_empty (const snd_pcm_format_mask_t *mask) |
| test, if given a snd_pcm_format_mask_t is empty More... | |
| void | snd_pcm_format_mask_set (snd_pcm_format_mask_t *mask, snd_pcm_format_t val) |
| make a format present in a snd_pcm_format_mask_t More... | |
| void | snd_pcm_format_mask_reset (snd_pcm_format_mask_t *mask, snd_pcm_format_t val) |
| make a format missing from a snd_pcm_format_mask_t More... | |
| size_t | snd_pcm_subformat_mask_sizeof (void) |
| get size of snd_pcm_subformat_mask_t More... | |
| int | snd_pcm_subformat_mask_malloc (snd_pcm_subformat_mask_t **ptr) |
| allocate an empty snd_pcm_subformat_mask_t using standard malloc More... | |
| void | snd_pcm_subformat_mask_free (snd_pcm_subformat_mask_t *obj) |
| frees a previously allocated snd_pcm_subformat_mask_t More... | |
| void | snd_pcm_subformat_mask_copy (snd_pcm_subformat_mask_t *dst, const snd_pcm_subformat_mask_t *src) |
| copy one snd_pcm_subformat_mask_t to another More... | |
| void | snd_pcm_subformat_mask_none (snd_pcm_subformat_mask_t *mask) |
| reset all bits in a snd_pcm_subformat_mask_t More... | |
| void | snd_pcm_subformat_mask_any (snd_pcm_subformat_mask_t *mask) |
| set all bits in a snd_pcm_subformat_mask_t More... | |
| int | snd_pcm_subformat_mask_test (const snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val) |
| test the presence of a subformat in a snd_pcm_subformat_mask_t More... | |
| int | snd_pcm_subformat_mask_empty (const snd_pcm_subformat_mask_t *mask) |
| test, if given a snd_pcm_subformat_mask_t is empty More... | |
| void | snd_pcm_subformat_mask_set (snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val) |
| make a subformat present in a snd_pcm_subformat_mask_t More... | |
| void | snd_pcm_subformat_mask_reset (snd_pcm_subformat_mask_t *mask, snd_pcm_subformat_t val) |
| make a subformat missing from a snd_pcm_subformat_mask_t More... | |
| size_t | snd_pcm_status_sizeof (void) |
| get size of snd_pcm_status_t More... | |
| int | snd_pcm_status_malloc (snd_pcm_status_t **ptr) |
| allocate an invalid snd_pcm_status_t using standard malloc More... | |
| void | snd_pcm_status_free (snd_pcm_status_t *obj) |
| frees a previously allocated snd_pcm_status_t More... | |
| void | snd_pcm_status_copy (snd_pcm_status_t *dst, const snd_pcm_status_t *src) |
| copy one snd_pcm_status_t to another More... | |
| snd_pcm_state_t | snd_pcm_status_get_state (const snd_pcm_status_t *obj) |
| Get state from a PCM status container (see snd_pcm_state) More... | |
| void | snd_pcm_status_get_trigger_tstamp (const snd_pcm_status_t *obj, snd_timestamp_t *ptr) |
| Get trigger timestamp from a PCM status container. More... | |
| void | snd_pcm_status_get_trigger_htstamp (const snd_pcm_status_t *obj, snd_htimestamp_t *ptr) |
| Get trigger hi-res timestamp from a PCM status container. More... | |
| void | snd_pcm_status_get_tstamp (const snd_pcm_status_t *obj, snd_timestamp_t *ptr) |
| Get "now" timestamp from a PCM status container. More... | |
| void | snd_pcm_status_get_htstamp (const snd_pcm_status_t *obj, snd_htimestamp_t *ptr) |
| Get "now" hi-res timestamp from a PCM status container. More... | |
| void | snd_pcm_status_get_audio_htstamp (const snd_pcm_status_t *obj, snd_htimestamp_t *ptr) |
| Get "now" hi-res audio timestamp from a PCM status container. More... | |
| void | snd_pcm_status_get_driver_htstamp (const snd_pcm_status_t *obj, snd_htimestamp_t *ptr) |
| Get "now" hi-res driver timestamp from a PCM status container. Defines when the status was generated by driver, may differ from normal timestamp. More... | |
| void | snd_pcm_status_get_audio_htstamp_report (const snd_pcm_status_t *obj, snd_pcm_audio_tstamp_report_t *audio_tstamp_report) |
| Get audio_tstamp_report from a PCM status container. More... | |
| void | snd_pcm_status_set_audio_htstamp_config (snd_pcm_status_t *obj, snd_pcm_audio_tstamp_config_t *audio_tstamp_config) |
| set audio_tstamp_config from a PCM status container More... | |
| snd_pcm_sframes_t | snd_pcm_status_get_delay (const snd_pcm_status_t *obj) |
| Get delay from a PCM status container (see snd_pcm_delay) More... | |
| snd_pcm_uframes_t | snd_pcm_status_get_avail (const snd_pcm_status_t *obj) |
| Get number of frames available from a PCM status container (see snd_pcm_avail_update) More... | |
| snd_pcm_uframes_t | snd_pcm_status_get_avail_max (const snd_pcm_status_t *obj) |
| Get maximum number of frames available from a PCM status container after last snd_pcm_status call. More... | |
| snd_pcm_uframes_t | snd_pcm_status_get_overrange (const snd_pcm_status_t *obj) |
| Get count of ADC overrange detections since last call. More... | |
| const char * | snd_pcm_type_name (snd_pcm_type_t type) |
| get name of PCM type More... | |
| const char * | snd_pcm_stream_name (const snd_pcm_stream_t stream) |
| get name of PCM stream type More... | |
| const char * | snd_pcm_access_name (const snd_pcm_access_t _access) |
| get name of PCM access type More... | |
| const char * | snd_pcm_format_name (const snd_pcm_format_t format) |
| get name of PCM sample format More... | |
| const char * | snd_pcm_format_description (const snd_pcm_format_t format) |
| get description of PCM sample format More... | |
| const char * | snd_pcm_subformat_name (const snd_pcm_subformat_t subformat) |
| get name of PCM sample subformat More... | |
| const char * | snd_pcm_subformat_description (const snd_pcm_subformat_t subformat) |
| get description of PCM sample subformat More... | |
| snd_pcm_format_t | snd_pcm_format_value (const char *name) |
| get PCM sample format from name More... | |
| const char * | snd_pcm_tstamp_mode_name (const snd_pcm_tstamp_t mode) |
| get name of PCM tstamp mode setting More... | |
| const char * | snd_pcm_state_name (const snd_pcm_state_t state) |
| get name of PCM state More... | |
| int | snd_pcm_dump (snd_pcm_t *pcm, snd_output_t *out) |
| Dump PCM info. More... | |
| int | snd_pcm_dump_hw_setup (snd_pcm_t *pcm, snd_output_t *out) |
| Dump current hardware setup for PCM. More... | |
| int | snd_pcm_dump_sw_setup (snd_pcm_t *pcm, snd_output_t *out) |
| Dump current software setup for PCM. More... | |
| int | snd_pcm_dump_setup (snd_pcm_t *pcm, snd_output_t *out) |
| Dump current setup (hardware and software) for PCM. More... | |
| int | snd_pcm_hw_params_dump (snd_pcm_hw_params_t *params, snd_output_t *out) |
| Dump a PCM hardware configuration space. More... | |
| int | snd_pcm_sw_params_dump (snd_pcm_sw_params_t *params, snd_output_t *out) |
| Dump a software configuration. More... | |
| int | snd_pcm_status_dump (snd_pcm_status_t *status, snd_output_t *out) |
| Dump status. More... | |
| int | snd_pcm_mmap_begin (snd_pcm_t *pcm, const snd_pcm_channel_area_t **areas, snd_pcm_uframes_t *offset, snd_pcm_uframes_t *frames) |
| Application request to access a portion of direct (mmap) area. More... | |
| snd_pcm_sframes_t | snd_pcm_mmap_commit (snd_pcm_t *pcm, snd_pcm_uframes_t offset, snd_pcm_uframes_t frames) |
| Application has completed the access to area requested with snd_pcm_mmap_begin. More... | |
| snd_pcm_sframes_t | snd_pcm_mmap_writei (snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size) |
| Write interleaved frames to a PCM using direct buffer (mmap) More... | |
| snd_pcm_sframes_t | snd_pcm_mmap_readi (snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size) |
| Read interleaved frames from a PCM using direct buffer (mmap) More... | |
| snd_pcm_sframes_t | snd_pcm_mmap_writen (snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size) |
| Write non interleaved frames to a PCM using direct buffer (mmap) More... | |
| snd_pcm_sframes_t | snd_pcm_mmap_readn (snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size) |
| Read non interleaved frames to a PCM using direct buffer (mmap) More... | |
| int | snd_pcm_format_signed (snd_pcm_format_t format) |
| Return sign info for a PCM sample linear format. More... | |
| int | snd_pcm_format_unsigned (snd_pcm_format_t format) |
| Return sign info for a PCM sample linear format. More... | |
| int | snd_pcm_format_linear (snd_pcm_format_t format) |
| Return linear info for a PCM sample format. More... | |
| int | snd_pcm_format_float (snd_pcm_format_t format) |
| Return float info for a PCM sample format. More... | |
| int | snd_pcm_format_little_endian (snd_pcm_format_t format) |
| Return endian info for a PCM sample format. More... | |
| int | snd_pcm_format_big_endian (snd_pcm_format_t format) |
| Return endian info for a PCM sample format. More... | |
| int | snd_pcm_format_cpu_endian (snd_pcm_format_t format) |
| Return endian info for a PCM sample format. More... | |
| int | snd_pcm_format_width (snd_pcm_format_t format) |
| Return nominal bits per a PCM sample. More... | |
| int | snd_pcm_format_physical_width (snd_pcm_format_t format) |
| Return bits needed to store a PCM sample. More... | |
| snd_pcm_format_t | snd_pcm_build_linear_format (int width, int pwidth, int unsignd, int big_endian) |
| Compose a PCM sample linear format. More... | |
| ssize_t | snd_pcm_format_size (snd_pcm_format_t format, size_t samples) |
| Return bytes needed to store a quantity of PCM sample. More... | |
| uint8_t | snd_pcm_format_silence (snd_pcm_format_t format) |
| Return 8 bit expressing silence for a PCM sample format. More... | |
| uint16_t | snd_pcm_format_silence_16 (snd_pcm_format_t format) |
| Return 16 bit expressing silence for a PCM sample format. More... | |
| uint32_t | snd_pcm_format_silence_32 (snd_pcm_format_t format) |
| Return 32 bit expressing silence for a PCM sample format. More... | |
| uint64_t | snd_pcm_format_silence_64 (snd_pcm_format_t format) |
| Return 64 bit expressing silence for a PCM sample format. More... | |
| int | snd_pcm_format_set_silence (snd_pcm_format_t format, void *buf, unsigned int samples) |
| Silence a PCM samples buffer. More... | |
| snd_pcm_sframes_t | snd_pcm_bytes_to_frames (snd_pcm_t *pcm, ssize_t bytes) |
| Convert bytes in frames for a PCM. More... | |
| ssize_t | snd_pcm_frames_to_bytes (snd_pcm_t *pcm, snd_pcm_sframes_t frames) |
| Convert frames in bytes for a PCM. More... | |
| long | snd_pcm_bytes_to_samples (snd_pcm_t *pcm, ssize_t bytes) |
| Convert bytes in samples for a PCM. More... | |
| ssize_t | snd_pcm_samples_to_bytes (snd_pcm_t *pcm, long samples) |
| Convert samples in bytes for a PCM. More... | |
| int | snd_pcm_area_silence (const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset, unsigned int samples, snd_pcm_format_t format) |
| Silence an area. More... | |
| int | snd_pcm_areas_silence (const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format) |
| Silence one or more areas. More... | |
| int | snd_pcm_area_copy (const snd_pcm_channel_area_t *dst_channel, snd_pcm_uframes_t dst_offset, const snd_pcm_channel_area_t *src_channel, snd_pcm_uframes_t src_offset, unsigned int samples, snd_pcm_format_t format) |
| Copy an area. More... | |
| int | snd_pcm_areas_copy (const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, const snd_pcm_channel_area_t *src_channels, snd_pcm_uframes_t src_offset, unsigned int channels, snd_pcm_uframes_t frames, snd_pcm_format_t format) |
| Copy one or more areas. More... | |
| int | snd_pcm_areas_copy_wrap (const snd_pcm_channel_area_t *dst_channels, snd_pcm_uframes_t dst_offset, const snd_pcm_uframes_t dst_size, const snd_pcm_channel_area_t *src_channels, snd_pcm_uframes_t src_offset, const snd_pcm_uframes_t src_size, const unsigned int channels, snd_pcm_uframes_t frames, const snd_pcm_format_t format) |
| Copy one or more areas. More... | |
| snd_pcm_t * | snd_pcm_hook_get_pcm (snd_pcm_hook_t *hook) |
| Get PCM handle for a PCM hook. More... | |
| void * | snd_pcm_hook_get_private (snd_pcm_hook_t *hook) |
| Get callback function private data for a PCM hook. More... | |
| void | snd_pcm_hook_set_private (snd_pcm_hook_t *hook, void *private_data) |
| Set callback function private data for a PCM hook. More... | |
| int | snd_pcm_hook_add (snd_pcm_hook_t **hookp, snd_pcm_t *pcm, snd_pcm_hook_type_t type, snd_pcm_hook_func_t func, void *private_data) |
| Add a PCM hook at end of hooks chain. More... | |
| int | snd_pcm_hook_remove (snd_pcm_hook_t *hook) |
| Remove a PCM hook. More... | |
| snd_pcm_uframes_t | snd_pcm_meter_get_bufsize (snd_pcm_t *pcm) |
| Get meter buffer size from a SND_PCM_TYPE_METER PCM. More... | |
| unsigned int | snd_pcm_meter_get_channels (snd_pcm_t *pcm) |
| Get meter channels from a SND_PCM_TYPE_METER PCM. More... | |
| unsigned int | snd_pcm_meter_get_rate (snd_pcm_t *pcm) |
| Get meter rate from a SND_PCM_TYPE_METER PCM. More... | |
| snd_pcm_uframes_t | snd_pcm_meter_get_now (snd_pcm_t *pcm) |
| Get meter "now" frame pointer from a SND_PCM_TYPE_METER PCM. More... | |
| snd_pcm_uframes_t | snd_pcm_meter_get_boundary (snd_pcm_t *pcm) |
| Get boundary for frame pointers from a SND_PCM_TYPE_METER PCM. More... | |
| int | snd_pcm_meter_add_scope (snd_pcm_t *pcm, snd_pcm_scope_t *scope) |
| Add a scope to a SND_PCM_TYPE_METER PCM. More... | |
| snd_pcm_scope_t * | snd_pcm_meter_search_scope (snd_pcm_t *pcm, const char *name) |
| Search an installed scope inside a SND_PCM_TYPE_METER PCM. More... | |
| int | snd_pcm_scope_malloc (snd_pcm_scope_t **ptr) |
| allocate an invalid snd_pcm_scope_t using standard malloc More... | |
| void | snd_pcm_scope_set_ops (snd_pcm_scope_t *scope, const snd_pcm_scope_ops_t *val) |
| Set callbacks for a SND_PCM_TYPE_METER PCM scope. More... | |
| void | snd_pcm_scope_set_name (snd_pcm_scope_t *scope, const char *val) |
| Set name of a SND_PCM_TYPE_METER PCM scope. More... | |
| const char * | snd_pcm_scope_get_name (snd_pcm_scope_t *scope) |
| Get name of a SND_PCM_TYPE_METER PCM scope. More... | |
| void * | snd_pcm_scope_get_callback_private (snd_pcm_scope_t *scope) |
| Get callbacks private value for a SND_PCM_TYPE_METER PCM scope. More... | |
| void | snd_pcm_scope_set_callback_private (snd_pcm_scope_t *scope, void *val) |
| Get callbacks private value for a SND_PCM_TYPE_METER PCM scope. More... | |
| int | snd_pcm_scope_s16_open (snd_pcm_t *pcm, const char *name, snd_pcm_scope_t **scopep) |
| Add a s16 pseudo scope to a SND_PCM_TYPE_METER PCM. More... | |
| int16_t * | snd_pcm_scope_s16_get_channel_buffer (snd_pcm_scope_t *scope, unsigned int channel) |
| Get s16 pseudo scope frames buffer for a channel. More... | |
| int | snd_spcm_init (snd_pcm_t *pcm, unsigned int rate, unsigned int channels, snd_pcm_format_t format, snd_pcm_subformat_t subformat, snd_spcm_latency_t latency, snd_pcm_access_t _access, snd_spcm_xrun_type_t xrun_type) |
| Set up a simple PCM. More... | |
| int | snd_spcm_init_duplex (snd_pcm_t *playback_pcm, snd_pcm_t *capture_pcm, unsigned int rate, unsigned int channels, snd_pcm_format_t format, snd_pcm_subformat_t subformat, snd_spcm_latency_t latency, snd_pcm_access_t _access, snd_spcm_xrun_type_t xrun_type, snd_spcm_duplex_type_t duplex_type) |
| Initialize simple PCMs in the duplex mode. More... | |
| int | snd_spcm_init_get_params (snd_pcm_t *pcm, unsigned int *rate, snd_pcm_uframes_t *buffer_size, snd_pcm_uframes_t *period_size) |
| Get the set up of simple PCM. More... | |
| const char * | snd_pcm_start_mode_name (snd_pcm_start_t mode) __attribute__((deprecated)) |
| (DEPRECATED) get name of PCM start mode setting More... | |
| const char * | snd_pcm_xrun_mode_name (snd_pcm_xrun_t mode) __attribute__((deprecated)) |
| (DEPRECATED) get name of PCM xrun mode setting More... | |
| int | snd_pcm_sw_params_set_start_mode (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_start_t val) __attribute__((deprecated)) |
| (DEPRECATED) Set start mode inside a software configuration container More... | |
| snd_pcm_start_t | snd_pcm_sw_params_get_start_mode (const snd_pcm_sw_params_t *params) __attribute__((deprecated)) |
| (DEPRECATED) Get start mode from a software configuration container More... | |
| int | snd_pcm_sw_params_set_xrun_mode (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_xrun_t val) __attribute__((deprecated)) |
| (DEPRECATED) Set xrun mode inside a software configuration container More... | |
| snd_pcm_xrun_t | snd_pcm_sw_params_get_xrun_mode (const snd_pcm_sw_params_t *params) __attribute__((deprecated)) |
| (DEPRECATED) Get xrun mode from a software configuration container More... | |
| int | snd_pcm_sw_params_set_xfer_align (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val) __attribute__((deprecated)) |
| (DEPRECATED) Set xfer align inside a software configuration container More... | |
| int | snd_pcm_sw_params_get_xfer_align (const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val) __attribute__((deprecated)) |
| (DEPRECATED) Get xfer align from a software configuration container More... | |
| int | snd_pcm_sw_params_set_sleep_min (snd_pcm_t *pcm, snd_pcm_sw_params_t *params, unsigned int val) __attribute__((deprecated)) |
| (DEPRECATED) Set minimum number of ticks to sleep inside a software configuration container More... | |
| int | snd_pcm_sw_params_get_sleep_min (const snd_pcm_sw_params_t *params, unsigned int *val) __attribute__((deprecated)) |
| (DEPRECATED) Get minimum numbers of ticks to sleep from a software configuration container More... | |
| int | snd_pcm_hw_params_get_tick_time (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)) |
| (DEPRECATED) Extract tick time from a configuration space More... | |
| int | snd_pcm_hw_params_get_tick_time_min (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)) |
| (DEPRECATED) Extract minimum tick time from a configuration space More... | |
| int | snd_pcm_hw_params_get_tick_time_max (const snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)) |
| (DEPRECATED) Extract maximum tick time from a configuration space More... | |
| int | snd_pcm_hw_params_test_tick_time (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) __attribute__((deprecated)) |
| (DEPRECATED) Verify if a tick time is available inside a configuration space for a PCM More... | |
| int | snd_pcm_hw_params_set_tick_time (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val, int dir) __attribute__((deprecated)) |
| (DEPRECATED) Restrict a configuration space to contain only one tick time More... | |
| int | snd_pcm_hw_params_set_tick_time_min (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)) |
| (DEPRECATED) Restrict a configuration space with a minimum tick time More... | |
| int | snd_pcm_hw_params_set_tick_time_max (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)) |
| (DEPRECATED) Restrict a configuration space with a maximum tick time More... | |
| int | snd_pcm_hw_params_set_tick_time_minmax (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *min, int *mindir, unsigned int *max, int *maxdir) __attribute__((deprecated)) |
| (DEPRECATED) Restrict a configuration space to have tick times in a given range More... | |
| int | snd_pcm_hw_params_set_tick_time_near (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)) |
| (DEPRECATED) Restrict a configuration space to have tick time nearest to a target More... | |
| int | snd_pcm_hw_params_set_tick_time_first (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)) |
| (DEPRECATED) Restrict a configuration space to contain only its minimum tick time More... | |
| int | snd_pcm_hw_params_set_tick_time_last (snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir) __attribute__((deprecated)) |
| (DEPRECATED) Restrict a configuration space to contain only its maximum tick time More... | |
Detailed Description
Application interface library for the ALSA driver.
- Date
- 1998-2001
Application interface library for the ALSA driver. See the PCM (digital audio) interface page for more details.
