From: "Alexander E. Patrakov" <patrakov@gmail.com>
To: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
alsa-devel@alsa-project.org
Subject: Re: [PATCH v4 05/10] ALSA: core: selection of audio_tstamp type and accuracy reports
Date: Sat, 31 Jan 2015 12:37:58 +0500 [thread overview]
Message-ID: <54CC8656.5080506@gmail.com> (raw)
In-Reply-To: <1422662163-7391-6-git-send-email-pierre-louis.bossart@linux.intel.com>
31.01.2015 04:55, Pierre-Louis Bossart wrote:
> Audio timestamps can be extracted from sample counters, wall clocks,
> PHC clocks (Ethernet AVB), on-demand synchronized snapshots. This
> patch provides the ability to report timestamping capabilities, select
> timestamp types and retrieve timestamp accuracy, if supported.
> Details can be found in Documentations/sound/alsa/timestamping.txt
I think that it is a good idea to add some example ./audio_time output
on a card that is neither HDAudio nor USB audio (i.e. a card not
specifically touched by your patches), so that the fallback behavior is
known.
--
Alexander E. Patrakov
next prev parent reply other threads:[~2015-01-31 7:38 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-30 23:55 [PATCH v4 00/10] audio timestamping evolutions Pierre-Louis Bossart
2015-01-30 23:55 ` [PATCH v4 01/10] ALSA: core: don't override timestamp unconditionally Pierre-Louis Bossart
2015-01-30 23:55 ` [PATCH v4 02/10] ALSA: core: allow for trigger_tstamp snapshot in .trigger Pierre-Louis Bossart
2015-02-02 10:48 ` Takashi Iwai
2015-01-30 23:55 ` [PATCH v4 03/10] ALSA: hda: read trigger_timestamp immediately after starting DMA Pierre-Louis Bossart
2015-02-02 10:49 ` Takashi Iwai
2015-01-30 23:55 ` [PATCH v4 04/10] ALSA: usb: update trigger timestamp on first non-zero URB submitted Pierre-Louis Bossart
2015-02-02 10:52 ` Takashi Iwai
2015-01-30 23:55 ` [PATCH v4 05/10] ALSA: core: selection of audio_tstamp type and accuracy reports Pierre-Louis Bossart
2015-01-31 7:37 ` Alexander E. Patrakov [this message]
2015-01-31 20:01 ` Pierre-Louis Bossart
2015-01-30 23:55 ` [PATCH v4 06/10] ALSA: core: pass audio tstamp config from userspace Pierre-Louis Bossart
2015-01-30 23:56 ` [PATCH v4 07/10] ALSA: core: pass audio tstamp config from userspace in compat mode Pierre-Louis Bossart
2015-01-30 23:56 ` [PATCH v4 08/10] ALSA: core: replace .wall_clock by .get_time_info Pierre-Louis Bossart
2015-01-30 23:56 ` [PATCH v4 09/10] ALSA: hda: replace .wallclock " Pierre-Louis Bossart
2015-01-30 23:56 ` [PATCH v4 10/10] ALSA: bump PCM protocol to 2.0.13 Pierre-Louis Bossart
2015-02-02 11:03 ` [PATCH v4 00/10] audio timestamping evolutions Takashi Iwai
2015-02-02 15:52 ` Pierre-Louis Bossart
2015-02-02 16:06 ` Takashi Iwai
2015-02-02 16:11 ` Pierre-Louis Bossart
2015-02-02 16:12 ` Takashi Iwai
2015-02-02 16:15 ` Jaroslav Kysela
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