Commit 58c15e52 authored by Martin Schrodt's avatar Martin Schrodt Committed by Gerd Hoffmann
Browse files

fix microphone lag with PA 



Several people have reported to have bag microphone lag with the PA
backend. While I cannot reproduce the problem here, it seems that their
PA somehow decides to buffer the microphone input for way too long,
causing this delay. This patch sets an upper limit to the amount of
data PA should hold. This fixes the problem reliably on their side,
while having no adverse effects on mine.

Signed-off-by: default avatarMartin Schrodt <martin@schrodt.org>
Message-id: 20190615153852.99040-1-martin@schrodt.org
Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 474f3938

audio/paaudio.c

+1 −1
Original line number Diff line number Diff line
@@ -618,7 +618,7 @@ static int qpa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque) 
    ss.rate = as->freq;



    ba.fragsize = pa_usec_to_bytes(ppdo->latency, &ss);

    ba.maxlength = -1;

    ba.maxlength = pa_usec_to_bytes(ppdo->latency * 2, &ss);

    ba.minreq = -1;

    ba.prebuf = -1;