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pulseaudio: process audio data in smaller chunks 

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__)) {