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libpulse: introduce pa_context_get_tile_size() call

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This commit is contained in:
Lennart Poettering 2009-10-28 23:26:48 +01:00
parent 744490a681
commit 4538523a29
3 changed files with 37 additions and 3 deletions
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22
src/pulse/context.h
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@ -255,12 +255,28 @@ pa_operation *pa_context_proplist_remove(pa_context *c, const char *const keys[]
uint32_t pa_context_get_index(pa_context *s);
/** Create a new timer event source for the specified time (wrapper
for mainloop->time_new). \since 0.9.16 */
* for mainloop->time_new). \since 0.9.16 */
pa_time_event* pa_context_rttime_new(pa_context *c, pa_usec_t usec, pa_time_event_cb_t cb, void *userdata);
/** Restart a running or expired timer event source (wrapper
for mainloop->time_restart). \since 0.9.16 */
/** Restart a running or expired timer event source (wrapper for
* mainloop->time_restart). \since 0.9.16 */
void pa_context_rttime_restart(pa_context *c, pa_time_event *e, pa_usec_t usec);
/* Return the optimal block size for passing around audio buffers. It
* is recommended to allocate buffers of the size returned here when
* writing audio data to playback streams, if the latency constraints
* permit this. It is not recommended writing larger blocks than this
* because usually they will then be split up internally into chunks
* of this size. It is not recommended writing smaller blocks than
* this (unless required due to latency demands) because this
* increases CPU usage. If ss is NULL you will be returned the
* byte-exact tile size. If you pass a valid ss, then the tile size
* will be rounded down to multiple of the frame size. This is
* supposed to be used in a construct such as
* pa_context_get_tile_size(pa_stream_get_context(s),
* pa_stream_get_sample_spec(ss)); \since 0.9.20 */
size_t pa_context_get_tile_size(pa_context *c, const pa_sample_spec *ss);
PA_C_DECL_END
#endif