[pulseaudio-discuss] 61ms delay in pa_simple_write()

Tomasz Torcz tomek at pipebreaker.pl
Fri Sep 24 09:19:21 PDT 2010

On Fri, Sep 24, 2010 at 11:56:58PM +0800, Wu Fengguang wrote:
> Anyway the pulseaudio's large buffer scheme makes possible the 61ms
> pa_simple_write(). Qemu is not expecting such a large latency. Its
> QEMU_PA_SAMPLES defaults to 1024, which can only hold up to
> 1024/48=21ms samples. So the 61ms delay will obviously overflow the
> "data push" based USB audio model..

  Has qemu informed PA about required latency?  There's an API for that.

Tomasz Torcz                Only gods can safely risk perfection,
xmpp: zdzichubg at chrome.pl     it's a dangerous thing for a man.  -- Alia

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