From mboxrd@z Thu Jan  1 00:00:00 1970
From: Clemens Ladisch <clemens@ladisch.de>
Subject: Re: ALSA hw sample rate conversion support
Date: Wed, 30 Mar 2011 15:27:59 +0200
Message-ID: <4D932FDF.2020907@ladisch.de>
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To: Aisheng Dong <dongas86@gmail.com>
Cc: alsa-devel@alsa-project.org
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Aisheng Dong wrote:
> Does ALSA core support hw sample rate conversion now?

Yes; this has always been supported for chips like Emu10k1.

> I wonder if current ALSA core provide interface to support hw sample
> rate conversion?

In your driver, set the ..._CONTINUOUS flag in the rates field (see the
section "Hardware Description" in the doc), and in the hw_params
callback, program the SRC according to the selected rate.


Regards,
Clemens