[PATCH 06/15] jackaudio: use more jack audio buffers

Volker Rümelin posted 15 patches 4 years, 1 month ago
There is a newer version of this series
[PATCH 06/15] jackaudio: use more jack audio buffers
Posted by Volker Rümelin 4 years, 1 month ago
From: Volker Rümelin <vr_qemu@t-online.de>

The next patch reduces the effective qemu playback buffer size
by timer-period. Increase the number of jack audio buffers by
one to preserve the total effective buffer size. The size of one
jack audio buffer is 512 samples. With audio defaults that's
512 samples / 44100 samples/s = 11.6 ms and only slightly larger
than the timer-period of 10 ms.

Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
---
 audio/jackaudio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/audio/jackaudio.c b/audio/jackaudio.c
index e7de6d5433..fe4d9d54c6 100644
--- a/audio/jackaudio.c
+++ b/audio/jackaudio.c
@@ -483,8 +483,8 @@ static int qjack_client_init(QJackClient *c)
         c->buffersize = 512;
     }
 
-    /* create a 2 period buffer */
-    qjack_buffer_create(&c->fifo, c->nchannels, c->buffersize * 2);
+    /* create a 3 period buffer */
+    qjack_buffer_create(&c->fifo, c->nchannels, c->buffersize * 3);
 
     qjack_client_connect_ports(c);
     c->state = QJACK_STATE_RUNNING;
-- 
2.31.1