From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vinod Koul Subject: Re: [PATCH] crec: Add option to specify codec ID Date: Fri, 18 Nov 2016 09:23:33 +0530 Message-ID: <20161118035333.GG2698@localhost> References: <1479296649-18278-1-git-send-email-rf@opensource.wolfsonmicro.com> <20161116130508.GZ3000@localhost> <1479301675.18450.18.camel@rf-debian.wolfsonmicro.main> <20161116134835.GW1575@localhost.localdomain> <1479308001.18450.25.camel@rf-debian.wolfsonmicro.main> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by alsa0.perex.cz (Postfix) with ESMTP id 828EE2668E8 for ; Fri, 18 Nov 2016 04:44:07 +0100 (CET) Content-Disposition: inline In-Reply-To: <1479308001.18450.25.camel@rf-debian.wolfsonmicro.main> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Richard Fitzgerald Cc: Charles Keepax , patches@opensource.wolfsonmicro.com, alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On Wed, Nov 16, 2016 at 02:53:21PM +0000, Richard Fitzgerald wrote: > On Wed, 2016-11-16 at 13:48 +0000, Charles Keepax wrote: > > On Wed, Nov 16, 2016 at 01:07:55PM +0000, Richard Fitzgerald wrote: > > > On Wed, 2016-11-16 at 18:35 +0530, Vinod Koul wrote: > > > > On Wed, Nov 16, 2016 at 11:44:09AM +0000, Richard Fitzgerald wrote: > > > > > This patch adds a -I command line option to set the codec ID, > > > > > either from a defined set of string values or as a number. > > > > > > > > Can you explain why you want to add this? The utility cant really record a > > > > mp3 file! > > > > > > You need to be able to pass a codec ID that the driver supports, and to > > > indicate which codec you're trying to use. It's not useful to only be > > > able to open the "PCM" codec. It doesn't really matter whether crec > > > understands the content of the data, we're just pulling raw data, most > > > likely for test/debug. > > > > > > The wm_adsp driver on Wolfson/Cirrus codecs uses the new BESPOKE stream > > > ID so we need a way to pass that. And we'd also need it for any drivers > > > that had streams using other codec IDs. Ah that was my guess too. I am okay to be able to add bespoke format and use that to dump raw data. But I am not okay to add codec formats which we dont support.. > > Is the objection here not that crec is wrapping the data with > > a WAV file? Should we perhaps just expand this so that if you > > request a different format it uses the raw data mode that it uses > > when you let the output go to stdout. > > > > Funny I thought we'd already added a flag for saving to the file raw. > It's raw when you pipe it to stdout. -- ~Vinod