From: Jussi Laako <jussi@sonarnerd.net>
To: alsa-devel@alsa-project.org
Subject: Re: [PATCH 1/2] ALSA: add DSD formats
Date: Sun, 07 Apr 2013 02:07:49 +0300 [thread overview]
Message-ID: <5160AAC5.70401@sonarnerd.net> (raw)
In-Reply-To: <1365248693-27867-1-git-send-email-zonque@gmail.com>
On 04/06/2013 02:44 PM, Daniel Mack wrote:
> configured hardware
> 352.8kHz 705.6KHz 1411.2KHz <---- sample rate
>
> 8-bit 2.8MHz 5.6MHz 11.2MHz
> 16-bit 5.6MHz 11.2MHz
>
> `-----------------------------------'
> actual DSD sample rates
This looks fine, I would just put a comment somewhere like "oldest bit
is in LSB" or "oldest bit is in MSB". Then for the U16 rest is about
question of byte endianess for hw vs sw...
Of course, from decoding point of view oldest-in-LSB is easiest since it
becomes just "y = x & 1; x >>= 1;" loop, while for encoding
oldest-in-MSB is easiest since it's "x |= y; x <<= 1;"
next prev parent reply other threads:[~2013-04-06 23:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-06 11:44 [PATCH 1/2] ALSA: add DSD formats Daniel Mack
2013-04-06 11:44 ` [PATCH 2/2] ALSA: snd-usb: add quirks handler for DSD streams Daniel Mack
2013-04-06 11:44 ` Daniel Mack
2013-04-06 11:48 ` Daniel Mack
2013-04-06 17:53 ` [PATCH 1/2] ALSA: add DSD formats Jussi Laako
2013-04-06 17:59 ` Daniel Mack
2013-04-06 21:56 ` Jussi Laako
2013-04-06 23:07 ` Jussi Laako [this message]
2013-04-07 7:35 ` Takashi Iwai
-- strict thread matches above, loose matches on Subject: below --
2013-03-27 23:30 Daniel Mack
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