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[PATCH 19/23] paaudio: send recorded data in smaller chunks
From: |
Volker Rümelin |
Subject: |
[PATCH 19/23] paaudio: send recorded data in smaller chunks |
Date: |
Sun, 10 Jan 2021 11:02:35 +0100 |
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_qemu@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
- [PATCH 09/23] sdlaudio: add recording functions, (continued)
- [PATCH 09/23] sdlaudio: add recording functions, Volker Rümelin, 2021/01/10
- [PATCH 11/23] sdlaudio: enable (in|out).mixing-engine=off, Volker Rümelin, 2021/01/10
- [PATCH 13/23] paaudio: avoid to clip samples multiple times, Volker Rümelin, 2021/01/10
- [PATCH 14/23] paaudio: wait for PA_STREAM_READY in qpa_write(), Volker Rümelin, 2021/01/10
- [PATCH 15/23] paaudio: wait until the playback stream is ready, Volker Rümelin, 2021/01/10
- [PATCH 12/23] audio: remove remaining unused plive code, Volker Rümelin, 2021/01/10
- [PATCH 16/23] paaudio: remove unneeded code, Volker Rümelin, 2021/01/10
- [PATCH 18/23] paaudio: limit minreq to 75% of audio timer_rate, Volker Rümelin, 2021/01/10
- [PATCH 20/23] dsoundaudio: replace GetForegroundWindow(), Volker Rümelin, 2021/01/10
- [PATCH 17/23] paaudio: comment bugs in functions qpa_init_*, Volker Rümelin, 2021/01/10
- [PATCH 19/23] paaudio: send recorded data in smaller chunks,
Volker Rümelin <=
- [PATCH 21/23] dsoundaudio: rename dsound_open(), Volker Rümelin, 2021/01/10
- [PATCH 22/23] dsoundaudio: enable f32 audio sample format, Volker Rümelin, 2021/01/10
- [PATCH 23/23] dsoundaudio: fix log message, Volker Rümelin, 2021/01/10
- Re: [PATCH 00/23] next round of audio patches, no-reply, 2021/01/10
- Re: [PATCH 00/23] next round of audio patches, Gerd Hoffmann, 2021/01/14