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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-def.h
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@ -74,7 +74,22 @@ enum pa_stream_direction {
/** Some special flags for stream connections. \since 0.6 */
enum pa_stream_flags {
PA_STREAM_START_CORKED = 1, /**< Create the stream corked, requiring an explicit pa_stream_cork() call to uncork it. */
PA_STREAM_START_CORKED = 1, /**< Create the stream corked, requiring an explicit pa_stream_cork() call to uncork it. */
PA_STREAM_INTERPOLATE_LATENCY = 2 /**< Interpolate the latency for
* this stream. When enabled,
* you can use
* pa_stream_interpolated_xxx()
* for synchronization. Using
* these functions instead of
* pa_stream_get_latency() has
* the advantage of not
* requiring a whole roundtrip
* for responses. Consider using
* this option when frequently
* requesting latency
* information. This is
* especially useful on long latency
* network connections. */
};
/** Playback and record buffer metrics */
@ -171,6 +186,7 @@ struct pa_latency_info {
* limited und unreliable itself. \since
* 0.5 */
struct timeval timestamp; /**< The time when this latency info was current */
uint64_t counter; /**< The byte counter current when the latency info was requested. \since 0.6 */
};
/** A structure for the spawn api. This may be used to integrate auto