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support for latency interpolation

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@256 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2004-10-27 00:10:12 +00:00
parent da45617efc
commit 148202d432
13 changed files with 250 additions and 72 deletions
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18
polyp/polyplib-stream.h
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@ -102,7 +102,7 @@ size_t pa_stream_writable_size(struct pa_stream *p);
struct pa_operation* pa_stream_drain(struct pa_stream *s, void (*cb) (struct pa_stream*s, int success, void *userdata), void *userdata);
/** Get the playback latency of a stream */
struct pa_operation* pa_stream_get_latency(struct pa_stream *p, void (*cb)(struct pa_stream *p, const struct pa_latency_info *i, void *userdata), void *userdata);
struct pa_operation* pa_stream_get_latency_info(struct pa_stream *p, void (*cb)(struct pa_stream *p, const struct pa_latency_info *i, void *userdata), void *userdata);
/** Set the callback function that is called whenever the state of the stream changes */
void pa_stream_set_state_callback(struct pa_stream *s, void (*cb)(struct pa_stream *s, void *userdata), void *userdata);
@ -138,9 +138,6 @@ struct pa_operation* pa_stream_set_name(struct pa_stream *s, const char *name, v
* this yourself using pa_stream_reset_counter(). \since 0.6 */
uint64_t pa_stream_get_counter(struct pa_stream *s);
/** Reset the total byte count to 0. \since 0.6 */
void pa_stream_reset_counter(struct pa_stream *s);
/** Return the current playback/recording time. This is based on the
* counter accessible with pa_stream_get_counter(). This function
* requires a pa_latency_info structure as argument, which should be
@ -152,7 +149,18 @@ pa_usec_t pa_stream_get_time(struct pa_stream *s, const struct pa_latency_info *
* using pa_stream_get_latency(). In case the stream is a monitoring
* stream the result can be negative, i.e. the captured samples are
* not yet played. In this case *negative is set to 1. \since 0.6 */
pa_usec_t pa_stream_get_total_latency(struct pa_stream *s, const struct pa_latency_info *i, int *negative);
pa_usec_t pa_stream_get_latency(struct pa_stream *s, const struct pa_latency_info *i, int *negative);
/** Return the interpolated playback/recording time. Requires the
* PA_STREAM_INTERPOLATE_LATENCY bit set when creating the stream. In
* contrast to pa_stream_get_latency() this function doesn't require
* a whole roundtrip for response. \since 0.6 */
pa_usec_t pa_stream_get_interpolated_time(struct pa_stream *s);
/** Return the interpolated playback/recording latency. Requires the
* PA_STREAM_INTERPOLATE_LATENCY bit set when creating the
* stream. \since 0.6 */
pa_usec_t pa_stream_get_interpolated_latency(struct pa_stream *s, int *negative);
/** Return a pointer to the streams sample specification. \since 0.6 */
const struct pa_sample_spec* pa_stream_get_sample_spec(struct pa_stream *s);