My little mythtv PulseAudio output effort is ticking along fairly
nicely, but I'm more than a little puzzled over the stream buffer
parameters to use. By default, pa_stream_connect_playback() sets
up with
maxlength 96000
minreq 1280
prebuf 62720
tlength 64000
which to me feels just a little extravagant in the mythtv context.
My guesstimates on refining/tightening them goes along the lines
of ...
- set minreq based on say 10-20 msecs @ given samplerate
- set maxlength to 16 times minreq
- set tlength to 2/3 to 3/4 of maxlength
- no idea what the ideal prebuf might be, guessing at slightly
less than tlength.
Thoughts and suggestions are most welcome.
Cheers, Cal
