From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: Query about SNDRV_PCM_FORMAT_GSM Date: Wed, 22 Jun 2011 12:58:33 +0100 Message-ID: <20110622115833.GA23666@sirena.org.uk> References: <4E019C2F.1020007@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from cassiel.sirena.org.uk (cassiel.sirena.org.uk [80.68.93.111]) by alsa0.perex.cz (Postfix) with ESMTP id 307742466A for ; Wed, 22 Jun 2011 13:58:38 +0200 (CEST) Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Takashi Iwai Cc: waiw@codeaurora.org, asishb@codeaurora.org, Patrick Lai , alsa-devel , jaywang@codeaurora.org List-Id: alsa-devel@alsa-project.org On Wed, Jun 22, 2011 at 11:54:56AM +0200, Takashi Iwai wrote: > Patrick Lai wrote: > > I see SNDRV_PCM_FORMAT_GSM is defined in asound.h. However, I do not > > find any reference to this macro except pcm_misc.c. I am curious how > > bps info(i.e 4.75 kbit/s) is passed down to the ALSA driver. Any > > pointers? > This is a vapor format until now, just reserved for the future > implementation :) It may make sense to handle this in a similar way to MP3s and so on - the Intel guys were working on generalising the interface in their out of tree driver to be usable for other things, though they've not posted anything yet.