[pulseaudio-discuss] Distribution kernels and glitch-free (Packagers, read this!)

Lennart Poettering lennart at poettering.net
Tue May 26 19:22:39 PDT 2009


On Fri, 15.05.09 17:30, Hynek Hanke (hanke at brailcom.org) wrote:

>
>
> Dear Lennart,
>
> I've set all the connection parameters to the values you
> have suggested by default. This is
>
> pre_buffering = (uint32_t) -1;
> maxlength = (uint32_t) -1;
> prebuf = (uint32_t) -1;
>
> and PA_STREAM_ADJUST_LATENCY into the flags.
>
> The results are that on the 0.9.14 Pulse Audio that before
> reported a 20ms latency ( = 0.0+2*9.98+0.0 ) was now
> reporting 40ms ( = 0.0+2*20+0.0 ) on the same target length
> of 400. We couldn't get better than 40 by increasing or decreasing
> the target length.
>
> When we got 0.9.15 fully working now, I can confirm what Luke Yelavich
> says, that the latency increased (on the same parameter configuration
> described above). In our setting it is about 200ms (= 80.0 + 2*20 + 80.0)
> and by modifying just tlength, we are not able to make it lower.

Could you please extract a minimal test case for me, then I'll have a
look on it to find out what's wrong.

Lennart

-- 
Lennart Poettering                        Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/           GnuPG 0x1A015CC4



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