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[Qemu-devel] [PULL 3/3] audio/paaudio: fix microphone input being unusab
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PULL 3/3] audio/paaudio: fix microphone input being unusable |
Date: |
Mon, 18 Mar 2019 13:09:05 +0100 |
From: Martin Schrodt <address@hidden>
The current code does not specify the metrics of the buffers for the
input device. This makes PulseAudio choose very bad defaults, which
causes input to be unusable: Audio put in gets out 30 seconds later.
This patch fixes that and makes the latency configurable as well.
Signed-off-by: Martin Schrodt <address@hidden>
Message-id: address@hidden
Signed-off-by: Gerd Hoffmann <address@hidden>
---
audio/paaudio.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/audio/paaudio.c b/audio/paaudio.c
index be27c73f094a..45295b4e5ecb 100644
--- a/audio/paaudio.c
+++ b/audio/paaudio.c
@@ -605,6 +605,7 @@ static int qpa_init_in(HWVoiceIn *hw, struct audsettings
*as, void *drv_opaque)
{
int error;
pa_sample_spec ss;
+ pa_buffer_attr ba;
struct audsettings obt_as = *as;
PAVoiceIn *pa = (PAVoiceIn *) hw;
paaudio *g = pa->g = drv_opaque;
@@ -615,6 +616,11 @@ 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 = -1;
+ ba.minreq = -1;
+ ba.prebuf = -1;
+
obt_as.fmt = pa_to_audfmt (ss.format, &obt_as.endianness);
pa->stream = qpa_simple_new (
@@ -624,7 +630,7 @@ static int qpa_init_in(HWVoiceIn *hw, struct audsettings
*as, void *drv_opaque)
ppdo->has_name ? ppdo->name : NULL,
&ss,
NULL, /* channel map */
- NULL, /* buffering attributes */
+ &ba, /* buffering attributes */
&error
);
if (!pa->stream) {
--
2.18.1