From: "Iain Sandoe" <iain@sandoe.co.uk>
To: Bill Fink <billfink@capu.net>
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: UPDATE dmasound to 2.4.3p3
Date: Sun, 11 Mar 2001 11:29:08 +0000 [thread overview]
Message-ID: <20010311112952.1D8872F08C@apollo.valhalla.net> (raw)
Hi Bill,
> How much of an effort would it be to add support for the
> SNDCTL_DSP_GETIPTR/SNDCTL_DSP_GETOPTR ioctls to the dmasound
> driver? I am working on porting xine to PPC and it requires
> the GETOPTR ioctl to provide timing information to synchronize
> the audio and video. As a temporary kludge, I managed to get
> the 0.3.7 version of xine to work by using the real time clock
> to provide pseudo timing information just based on the 44.1 KHz
> audio sampling rate, but this is obviously sub-optimal at best,
> and may be more problematic with the newer 0.4.01 version of
> xine that just added true audio/video synchronization support.
I discussed the xine issues briefly with Henry Worth and...
(1) I think I can fix the bug that makes the dmasound driver claim to be
able to do 48K (when it can't) quickly (as in prob. today).
(2) I'll look at the GETXPTR stuff.... later on.
(3) Implementing mmio doesn't appeal to me until we can lose the translation
code completely. I might do a "CONFIG_LEAN" version soon-ish.
so - let's see what happens later today ;-)
ciao,
Iain.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next reply other threads:[~2001-03-11 11:29 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-11 11:29 Iain Sandoe [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-03-11 3:59 UPDATE dmasound to 2.4.3p3 Bill Fink
2001-03-10 17:53 Iain Sandoe
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=20010311112952.1D8872F08C@apollo.valhalla.net \
--to=iain@sandoe.co.uk \
--cc=billfink@capu.net \
--cc=linuxppc-dev@lists.linuxppc.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).