Tell PulseAudio to send recorded audio data in smaller chunks
than timer_period, so there's a good chance that qemu can read
recorded audio data every time it looks for new data.
PulseAudio tries to send buffer updates at a fragsize / 2 rate.
With fragsize = timer_period / 2 * 3 the update rate is 75% of
timer_period. The lower limit for the recording buffer size
maxlength is fragsize * 2.
Signed-off-by: Volker Rümelin <vr_q...@t-online.de>
---
audio/paaudio.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/audio/paaudio.c b/audio/paaudio.c
index 3186868294..1e6f4448ce 100644
--- a/audio/paaudio.c
+++ b/audio/paaudio.c
@@ -568,8 +568,9 @@ static int qpa_init_in(HWVoiceIn *hw, struct audsettings
*as, void *drv_opaque)
ss.channels = as->nchannels;
ss.rate = as->freq;
- ba.fragsize = pa_usec_to_bytes(ppdo->latency, &ss);
- ba.maxlength = pa_usec_to_bytes(ppdo->latency * 2, &ss);
+ ba.fragsize = pa_usec_to_bytes((g->dev->timer_period >> 1) * 3, &ss);
+ ba.maxlength = pa_usec_to_bytes(
+ MAX(ppdo->latency, g->dev->timer_period * 3), &ss);
ba.minreq = -1;
ba.prebuf = -1;
--
2.26.2
