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videolan
vlc-2-2
Commits
283d246c
Commit
283d246c
authored
Dec 09, 2012
by
Rémi Denis-Courmont
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PulseAudio: use same period size as ALSA (fixes #7827)
parent
823c13a7
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1
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-8
modules/audio_output/pulse.c
modules/audio_output/pulse.c
+5
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modules/audio_output/pulse.c
View file @
283d246c
...
...
@@ -783,15 +783,12 @@ static int Start(audio_output_t *aout, audio_sample_format_t *restrict fmt)
struct
pa_buffer_attr
attr
;
attr
.
maxlength
=
-
1
;
/* PulseAudio assumes that tlength bytes are available in the buffer. Thus
* we need to be conservative and set the minimum value that the VLC
* audio decoder thread warrants. Otherwise, PulseAudio buffers will
* underrun on hardware with large buffers. VLC keeps at least
* AOUT_MIN_PREPARE and at most AOUT_MAX_PREPARE worth of audio buffers.
* TODO? tlength could be adaptively increased to reduce wakeups. */
attr
.
tlength
=
pa_usec_to_bytes
(
AOUT_MIN_PREPARE_TIME
,
&
ss
);
/* PulseAudio goes berserk if the target length (tlength) is not
* significantly longer than 2 periods (minreq), or when the period length
* is unspecified and the target length is short. */
attr
.
tlength
=
pa_usec_to_bytes
(
3
*
AOUT_MIN_PREPARE_TIME
,
&
ss
);
attr
.
prebuf
=
0
;
/* trigger manually */
attr
.
minreq
=
attr
.
tlength
/
3
;
attr
.
minreq
=
pa_usec_to_bytes
(
AOUT_MIN_PREPARE_TIME
,
&
ss
)
;
attr
.
fragsize
=
0
;
/* not used for output */
sys
->
stream
=
NULL
;
...
...
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