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pulseaudio: process audio data in smaller chunks

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The rate of pulseaudio absorbing the audio stream is used to control the
the rate of the guests audio stream.  When the emulated hardware uses
small chunks (like intel-hda does) we need small chunks on the audio
backend side too, otherwise that feedback loop doesn't work very well.

Cc: Max Ehrlich <maxehr@umiacs.umd.edu>
Cc: Martin Schrodt <martin@schrodt.org>
Buglink: https://bugs.launchpad.net/bugs/1795527
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181109142032.1628-1-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2018-11-09 15:20:32 +01:00
parent 627c865d22
commit 6cdc2d189c
1 changed files with 2 additions and 2 deletions
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4
audio/paaudio.c
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@ -227,7 +227,7 @@ static void *qpa_thread_out (void *arg)
}
}
decr = to_mix = audio_MIN (pa->live, pa->g->conf.samples >> 2);
decr = to_mix = audio_MIN(pa->live, pa->g->conf.samples >> 5);
rpos = pa->rpos;
if (audio_pt_unlock(&pa->pt, __func__)) {
@ -319,7 +319,7 @@ static void *qpa_thread_in (void *arg)
}
}
incr = to_grab = audio_MIN (pa->dead, pa->g->conf.samples >> 2);
incr = to_grab = audio_MIN(pa->dead, pa->g->conf.samples >> 5);
wpos = pa->wpos;
if (audio_pt_unlock(&pa->pt, __func__)) {