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wasapi:

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- improved device buffer alignment calculation allowing to set as precise device latency as possible
This commit is contained in:
dmitrykos 2010-04-12 21:15:50 +00:00
commit 14d09847a3
1 changed files with 3 additions and 3 deletions
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6
src/hostapi/wasapi/pa_win_wasapi.c
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@ -701,7 +701,7 @@ static UINT32 AlignFramesPerBuffer(UINT32 nFrames, UINT32 nSamplesPerSec, UINT32
{
#define HDA_PACKET_SIZE 128
long packets_total = 10000 * (nSamplesPerSec * nBlockAlign / HDA_PACKET_SIZE);
//long packets_total = 10000 * (nSamplesPerSec * nBlockAlign / HDA_PACKET_SIZE);
long frame_bytes = nFrames * nBlockAlign;
long packets;
@ -711,10 +711,10 @@ static UINT32 AlignFramesPerBuffer(UINT32 nFrames, UINT32 nSamplesPerSec, UINT32
packets = frame_bytes / HDA_PACKET_SIZE;
// align to packets count
while (packets && ((packets_total % packets) != 0))
/*while (packets && ((packets_total % packets) != 0))
{
--packets;
}
}*/
frame_bytes = packets * HDA_PACKET_SIZE;
nFrames = frame_bytes / nBlockAlign;