From: Volker Rümelin <[email protected]> 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 <[email protected]> Message-id: [email protected] Message-Id: <[email protected]> Signed-off-by: Gerd Hoffmann <[email protected]> --- audio/paaudio.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/audio/paaudio.c b/audio/paaudio.c index 318686829428..1e6f4448ce37 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; -- 2.29.2
