From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
To: Dylan Reid <dgreid@chromium.org>
Cc: tiwai@suse.de, alsa-devel@alsa-project.org
Subject: Re: [PATCH v2] ALSA: hda - Apply codec delay to wallclock.
Date: Tue, 09 Apr 2013 20:55:59 -0700 [thread overview]
Message-ID: <5164E2CF.2050207@linux.intel.com> (raw)
In-Reply-To: <1365470430-22292-1-git-send-email-dgreid@chromium.org>
On 4/8/13 6:20 PM, Dylan Reid wrote:
> For playback add the codec-side delay to the timestamp, for capture
> subtract it. This brings the timestamps in line with the time that
> was recently added to the delay reporting.
>
> Signed-off-by: Dylan Reid <dgreid@chromium.org>
> ---
> Changes since v1:
> Calculate nsec from frames, subtract delay for playback as well as
> capture.
> + return (nsec > codec_nsecs) ? nsec - codec_nsecs : 0;
Is this correct? I would think for capture you need to add the delay,
and subtract it for playback?
-Pierre
next prev parent reply other threads:[~2013-04-10 3:56 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-09 1:20 [PATCH v2] ALSA: hda - Apply codec delay to wallclock Dylan Reid
2013-04-09 6:03 ` Takashi Iwai
2013-04-10 3:55 ` Pierre-Louis Bossart [this message]
2013-04-10 5:30 ` Dylan Reid
2013-04-10 14:29 ` Pierre-Louis Bossart
2013-04-10 15:16 ` Takashi Iwai
2013-04-12 1:17 ` Pierre-Louis Bossart
2013-04-12 8:55 ` Takashi Iwai
2013-04-13 8:55 ` Takashi Iwai
2013-04-15 8:02 ` Dylan Reid
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