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audio: fix audio timer rate conversion bug

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Currently the default audio timer frequency is 10000Hz instead of
a period of 10000us. Also the audiodev timer-period property gets
converted like a frequency. Only handling of the legacy
QEMU_AUDIO_TIMER_PERIOD environment variable is correct because
it's actually a frequency.

With this patch the property timer-period is really a timer period
and QEMU_AUDIO_TIMER_PERIOD remains a frequency.

Fixes: 71830221fb "-audiodev command line option basic implementation."
Signed-off-by: Volker Rümelin <vr_qemu@t-online.de>
Reviewed-by: Zoltán Kővágó <DirtY.iCE.hu@gmail.com>
Message-id: 90b95e4f-39ef-2b01-da6a-857ebaee1ec5@t-online.de
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Volker Rümelin 2019-04-01 20:59:20 +02:00 • committed by Gerd Hoffmann
parent b396733df3
commit be1092afa0
2 changed files with 7 additions and 1 deletions
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2
audio/audio.c
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@ -1471,7 +1471,7 @@ static int audio_init(Audiodev *dev)
if (dev->timer_period <= 0) {
s->period_ticks = 1;
} else {
s->period_ticks = NANOSECONDS_PER_SECOND / dev->timer_period;
s->period_ticks = dev->timer_period * SCALE_US;
}
e = qemu_add_vm_change_state_handler (audio_vm_change_state_handler, s);