This is probably a question for Lennart... I am somewhat confused on how the playback latency should be estimated. I was under the impression that pa_stream_get_latency() was the way to go, but I came across some code in gstreamer/pulsesink where the latency is retrieved with pa_stream_get_timing_info() I however cannot figure out what the fields pa_timing_info::sink_usec and ::configured_sink_used mean, and whether they have any relationship with the values returned by pa_stream_get_latency(). In my tests, I see the following values in the latency_cb() routine sink latency 0, configured_sink_usec 90000 sink_usec 0 sink latency 0, configured_sink_usec 90000 sink_usec 87213 sink latency 0, configured_sink_usec 90000 sink_usec 86998 sink latency 0, configured_sink_usec 90000 sink_usec 86724 sink latency 242259, configured_sink_usec 90000 sink_usec 88696 sink latency 482473, configured_sink_usec 90000 sink_usec 88568 sink latency 473523, configured_sink_usec 90000 sink_usec 90064 sink latency 477102, configured_sink_usec 90000 sink_usec 89338 Which of these three values shall be provided to the gstreamer (or other middleware) pipeline to represent the back-end delay? Thanks for your feedback. - Pierre
