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audiohda: start playback only when we have a minimum delay buffered

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This commit is contained in:
cinap_lenrek 2014-03-19 21:15:43 +01:00
parent 90148cbe87
commit a6f3ba79c2
1 changed files with 11 additions and 2 deletions
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13
sys/src/9/pc/audiohda.c
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@ -1319,9 +1319,12 @@ hdabuffered(Audio *adev)
static void
hdakick(Ctlr *ctlr)
{
int delay;
if(ctlr->sout.active)
return;
if(buffered(&ctlr->sout.ring) > Blocksize)
delay = ctlr->adev->delay*BytesPerSample;
if(buffered(&ctlr->sout.ring) >= delay)
streamstart(ctlr, &ctlr->sout);
}
@ -1486,7 +1489,13 @@ hdasetvol(Audio *adev, int x, int a[2])
adev->speed = a[0];
break;
case Vdelay:
adev->delay = a[0];
if(a[0] < Blocksize/BytesPerSample) {
adev->delay = Blocksize/BytesPerSample;
} else if(a[0] > (ctlr->sout.ring.nbuf/BytesPerSample)-1) {
adev->delay = (ctlr->sout.ring.nbuf/BytesPerSample)-1;
} else {
adev->delay = a[0];
}
break;
}
return 0;