[alsa-devel] [PATCH] ALSA: hda - Apply codec delay to wallclock.
pierre-louis.bossart at linux.intel.com
Tue Apr 9 01:37:03 CEST 2013
> Of course you're right. That's annoying, it will have to convert from
> ms to frames (in get_delay) then to ns here. Converting from frames
> to ns here is a better idea, but for this particular codec, all I have
> is ms resolution.
This is odd, looks completely arbitrary...
> What should the capture timestamp represent? When the sample hits the
> A-to-D or when it is read out of the buffer?
When the samples hit A-to-D, as close as possible to the input (or the
serial link if the codec doesn't report delay)
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