From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: Dylan Reid <dgreid@chromium.org>
Cc: Takashi Iwai <tiwai@suse.de>, alsa-devel@alsa-project.org
Subject: Re: [PATCH] ALSA: hda - Apply codec delay to wallclock.
Date: Mon, 08 Apr 2013 16:37:03 -0700 [thread overview]
Message-ID: <5163549F.1050304@linux.intel.com> (raw)
In-Reply-To: <CAEUnVG5Q05mtQSs=2=rMspUfMRYm8gS3G+FQRLZTWQq=Aap_rQ@mail.gmail.com>
> 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...
> Pierre,
> 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)
-Pierre
next prev parent reply other threads:[~2013-04-08 23:37 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-06 0:22 [PATCH] ALSA: hda - Apply codec delay to wallclock Dylan Reid
2013-04-07 7:41 ` Takashi Iwai
2013-04-08 15:44 ` Dylan Reid
2013-04-08 16:31 ` Pierre-Louis Bossart
2013-04-08 16:34 ` Takashi Iwai
2013-04-08 16:56 ` Dylan Reid
2013-04-08 23:37 ` Pierre-Louis Bossart [this message]
2013-04-09 0:05 ` Dylan Reid
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