if (usec != (pa_usec_t) -1)
usec = PA_CLAMP(usec, i->sink->thread_info.min_latency, i->sink->thread_info.max_latency);
i->thread_info.requested_sink_latency = usec;
if (usec != (pa_usec_t) -1)
usec = PA_CLAMP(usec, i->sink->thread_info.min_latency, i->sink->thread_info.max_latency);
i->thread_info.requested_sink_latency = usec;