SphinxBase
0.6
|
generic live audio interface for recording and playback More...
#include <sphinx_config.h>
#include <sphinxbase/sphinxbase_export.h>
#include <sphinxbase/prim_type.h>
Go to the source code of this file.
Data Structures | |
struct | ad_rec_t |
struct | ad_play_t |
Functions | |
SPHINXBASE_EXPORT ad_rec_t * | ad_open_dev (const char *dev, int32 samples_per_sec) |
Open a specific audio device for recording. More... | |
SPHINXBASE_EXPORT ad_rec_t * | ad_open_sps (int32 samples_per_sec) |
Open the default audio device with a given sampling rate. More... | |
SPHINXBASE_EXPORT ad_rec_t * | ad_open (void) |
Open the default audio device. | |
SPHINXBASE_EXPORT int32 | ad_start_rec (ad_rec_t *) |
SPHINXBASE_EXPORT int32 | ad_stop_rec (ad_rec_t *) |
SPHINXBASE_EXPORT int32 | ad_close (ad_rec_t *) |
SPHINXBASE_EXPORT int32 | ad_read (ad_rec_t *, int16 *buf, int32 max) |
SPHINXBASE_EXPORT ad_play_t * | ad_open_play_sps (int32 samples_per_sec) |
SPHINXBASE_EXPORT ad_play_t * | ad_open_play (void) |
SPHINXBASE_EXPORT int32 | ad_start_play (ad_play_t *) |
SPHINXBASE_EXPORT int32 | ad_stop_play (ad_play_t *) |
SPHINXBASE_EXPORT int32 | ad_close_play (ad_play_t *) |
SPHINXBASE_EXPORT int32 | ad_write (ad_play_t *, int16 *buf, int32 len) |
Queue a block of audio samples for playback. More... | |
SPHINXBASE_EXPORT void | ad_mu2li (int16 *outbuf, unsigned char *inbuf, int32 n_samp) |
Convert mu-law data to int16 linear PCM format. | |
generic live audio interface for recording and playback
Definition in file ad.h.
SPHINXBASE_EXPORT ad_rec_t* ad_open_dev | ( | const char * | dev, |
int32 | samples_per_sec | ||
) |
Open a specific audio device for recording.
The device is opened in non-blocking mode and placed in idle state.
dev | Device name (platform-specific) |
samples_per_sec | Samples per second |
Definition at line 252 of file ad_alsa.c.
References ad_rec_t::bps, and ad_rec_t::sps.
Referenced by ad_open_sps().
SPHINXBASE_EXPORT ad_rec_t* ad_open_sps | ( | int32 | samples_per_sec | ) |
Open the default audio device with a given sampling rate.
samples_per_sec | Samples per second |
Definition at line 290 of file ad_alsa.c.
References ad_open_dev().
Referenced by ad_open().
SPHINXBASE_EXPORT int32 ad_write | ( | ad_play_t * | , |
int16 * | buf, | ||
int32 | len | ||
) |
Queue a block of audio samples for playback.
Write the next block of [len] samples from rawbuf to the A/D device for playback. The device may queue less than len samples, possibly 0, since it is non-blocking. The application should resubmit the remaining data to be played. Return value: # samples accepted for playback; -1 if error.
Definition at line 373 of file play_win32.c.