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stream: add function to set adaptive resampler rate

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Make a function to set the adaptive resampler.
This commit is contained in:
Wim Taymans 2024-11-22 09:29:53 +01:00
parent 188d920733
commit 433afeaa1e
2 changed files with 29 additions and 0 deletions
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20
src/pipewire/stream.c
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@ -2595,3 +2595,23 @@ int pw_stream_trigger_process(struct pw_stream *stream)
} }
return res; return res;
} }
SPA_EXPORT
int pw_stream_set_rate(struct pw_stream *stream, double rate)
{
struct stream *impl = SPA_CONTAINER_OF(stream, struct stream, this);
bool enable;
if (impl->rate_match == NULL)
return -ENOTSUP;
if (rate <= 0.0) {
rate = 1.0;
enable = false;
} else {
enable = true;
}
impl->rate_match->rate = rate;
SPA_FLAG_UPDATE(impl->rate_match->flags, SPA_IO_RATE_MATCH_FLAG_ACTIVE, enable);
return 0;
}

9
src/pipewire/stream.h
View file

@ -662,6 +662,15 @@ int pw_stream_trigger_process(struct pw_stream *stream);
* Since 1.2.6 */ * Since 1.2.6 */
int pw_stream_emit_event(struct pw_stream *stream, const struct spa_event *event); int pw_stream_emit_event(struct pw_stream *stream, const struct spa_event *event);
/** Adjust the rate of the stream.
* When the stream is using an adaptive resampler, adjust the resampler rate.
* When there is no resampler, -ENOTSUP is returned. Activating the adaptive
* resampler will add a small amount of delay to the samples, you can deactivate
* it again by setting a value <= 0.0.
* Since 1.4.0 */
int pw_stream_set_rate(struct pw_stream *stream, double rate);
/** /**
* \} * \}
*/ */