From: Jussi Laako <jussi@sonarnerd.net>
To: Andreas Koch <andreas@akdesigninc.com>
Cc: alsa-devel@alsa-project.org, tiwai@suse.de, clemens@ladisch.de,
Daniel Mack <zonque@gmail.com>,
demian@auraliti.com, ray@auraliti.com
Subject: Re: [PATCH 2/2] alsa-lib: bring pcm.h and pcm.c in sync with the kernel list
Date: Fri, 05 Apr 2013 23:48:13 +0300 [thread overview]
Message-ID: <515F388D.4060707@sonarnerd.net> (raw)
In-Reply-To: <7.0.0.16.2.20130405092937.144d10d0@akdesigninc.com>
On 04/05/2013 10:59 PM, Andreas Koch wrote:
> However, they are interpreting the ASIO spec for DSD differently. They
> express buffer size in samples, which means that for DSD it is measured
> in bits.
That's how pretty much everybody, including Sony who co-authored the
spec, has been interpreting it so far...
Otherwise all the latency calculations become inconsistent and need
special exceptions for DSD. I agree the ASIO spec is not very clear,
however it always talks about number of samples and then specifically
mentions that DSD samples are _packed_ into bytes and thus all buffer
sizes have to multiples of eight.
I have a hidden configuration flag to flip that either way as necessary,
but default is that sizes are in _bits_.
- Jussi
next prev parent reply other threads:[~2013-04-05 20:48 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-27 23:32 [PATCH 1/2] alsa-lib: pcm.c: fix indentation Daniel Mack
2013-03-27 23:32 ` [PATCH 2/2] alsa-lib: bring pcm.h and pcm.c in sync with the kernel list Daniel Mack
2013-03-27 23:45 ` Jussi Laako
[not found] ` <7.0.0.16.2.20130327213632.13b07718@akdesigninc.com>
2013-03-28 7:36 ` Jussi Laako
2013-03-28 7:49 ` Jussi Laako
2013-03-28 9:54 ` Daniel Mack
2013-03-28 9:52 ` Daniel Mack
2013-04-05 7:45 ` Daniel Mack
[not found] ` <7.0.0.16.2.20130405092937.144d10d0@akdesigninc.com>
2013-04-05 20:48 ` Jussi Laako [this message]
2013-04-05 20:53 ` Jussi Laako
2013-04-06 11:29 ` Daniel Mack
2013-04-06 17:52 ` Jussi Laako
2013-04-06 17:58 ` Daniel Mack
2013-04-06 21:48 ` Jussi Laako
-- strict thread matches above, loose matches on Subject: below --
2013-04-18 8:37 [PATCH 1/2] alsa-lib: pcm.c: fix indentation Daniel Mack
2013-04-18 8:37 ` [PATCH 2/2] alsa-lib: bring pcm.h and pcm.c in sync with the kernel list Daniel Mack
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