From: David Henningsson <david.henningsson-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
To: General PulseAudio Discussion
<pulseaudio-discuss-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>
Cc: alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org,
linaro-dev-cunTk1MwBs8s++Sfvej+rw@public.gmane.org,
Colin Guthrie <gmane-D409yXkIzt2rnn0nCzrM/w@public.gmane.org>,
Mark Brown
<broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>,
Liam Girdwood <lrg-l0cyMroinI0@public.gmane.org>
Subject: Re: [pulseaudio-discuss] alsa ucm in pulseaudio
Date: Fri, 14 Oct 2011 08:35:10 +0200 [thread overview]
Message-ID: <4E97D81E.4080607@canonical.com> (raw)
In-Reply-To: <CAJ4+uhUoBqTfDdDGEo_cKpzpdOmCPODfts7Afij1vafW+hwG=w@mail.gmail.com>
On 10/14/2011 04:47 AM, Feng Wei wrote:
> Hi Liam, Mark, Colin, and all,
> I study the codes in pulseaudio and alsa ucm patch recently, and
> create a page of my study result. I appreciate your feedback. The page
> is at https://wiki.linaro.org/WorkingGroups/Middleware/Multimedia/Specs/1111/AudioIntegration/UCMPulseAudio/Analyzation.
> Also if needed, I'm glad to contribute to the integration of alsa
> ucm in pulseaudio.
> Thank you.
Oh, nice diagrams :-) Some of them might be useful additions to the
PulseAudio wiki.
I think the modelling of UCM concepts onto PulseAudio concepts is an
important discussion. In PulseAudio, profiles are mainly connected to
device strings, how to open the devices, channels supported, whereas
ports are just alsa mixer kcontrol changes. UCM verbs, as I understand
it, contain both.
In this context, I have a question: Can more than verb be active at a
time for a specific card (e g can both "hifi" and "record" be active for
the panda), and if so, how is it described in UCM what verbs that can
coexist and which ones are mutually exclusive? I believe PulseAudio is
going to need that information in order to be able to know how to create
its profiles.
--
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic
next prev parent reply other threads:[~2011-10-14 6:35 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-14 2:47 alsa ucm in pulseaudio Feng Wei
2011-10-14 6:35 ` David Henningsson [this message]
[not found] ` <4E97D81E.4080607-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2011-10-14 7:39 ` [pulseaudio-discuss] " Feng Wei
[not found] ` <CAJ4+uhUL-mR_=Tot4XBbQuMRgbg45raL+058prXgEmrpG5Jukg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-10-14 8:57 ` David Henningsson
2011-10-14 9:39 ` Mark Brown
2011-10-14 10:00 ` David Henningsson
2011-10-14 11:35 ` Mark Brown
[not found] ` <4E97F964.4080701-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2011-10-14 9:42 ` Feng Wei
[not found] ` <CAJ4+uhUGgcFtZrYdu4-kzd8Er5tr0rFuAu4foY04Ku2JyQaeyw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-10-14 10:19 ` David Henningsson
[not found] ` <4E980CC9.2050303-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2011-10-14 10:40 ` Feng Wei
[not found] ` <CAJ4+uhX1bYr3HEUwtKCSLkzsa71OLo4KSP00+Kx25H=t1Ves7g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-10-14 10:57 ` David Henningsson
2011-10-14 12:18 ` Mark Brown
2011-10-17 7:14 ` Arun Raghavan
2011-10-17 7:45 ` Feng Wei
2011-10-17 8:32 ` David Henningsson
2011-10-17 10:23 ` Mark Brown
2011-10-17 10:55 ` Arun Raghavan
2011-10-17 11:03 ` Takashi Iwai
2011-10-14 12:01 ` Mark Brown
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4E97D81E.4080607@canonical.com \
--to=david.henningsson-z7wlfzj8ewms+fvcfc7uqw@public.gmane.org \
--cc=alsa-devel-K7yf7f+aM1XWsZ/bQMPhNw@public.gmane.org \
--cc=broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org \
--cc=gmane-D409yXkIzt2rnn0nCzrM/w@public.gmane.org \
--cc=linaro-dev-cunTk1MwBs8s++Sfvej+rw@public.gmane.org \
--cc=lrg-l0cyMroinI0@public.gmane.org \
--cc=pulseaudio-discuss-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.