From: Clemens Ladisch <clemens@ladisch.de>
To: Patrick Lai <plai@codeaurora.org>
Cc: Eliot Blennerhassett <linux@audioscience.com>,
linux-arm-msm@vger.kernel.org,
alsa-devel <alsa-devel@alsa-project.org>
Subject: Re: [alsa-devel] Compressed Audio Playback/Capture through ALSA framework
Date: Wed, 16 Mar 2011 08:21:48 +0100 [thread overview]
Message-ID: <4D80650C.4000006@ladisch.de> (raw)
In-Reply-To: <4D7FF63B.40805@codeaurora.org>
Patrick Lai wrote:
> Why is AC3 passthrough acceptable
Because it pretends to be a normal 16-bit stereo stream at 48 kHz,
the only difference is that the IEC958 non-audio bit is set.
> but not other compressed audio format?
Other formats like DTS or WMA can be transported in the same way.
> Eliot Blennerhassett wrote:
> > ALSA might be extended to cope with compressed audio with fixed frame
> > size and bitrate, but dealing with any VBR encoding is likely to be even
> > more problematic.
Regards,
Clemens
next prev parent reply other threads:[~2011-03-16 7:21 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-15 18:31 Compressed Audio Playback/Capture through ALSA framework Patrick Lai
2011-03-15 20:40 ` Eliot Blennerhassett
2011-03-15 20:52 ` [alsa-devel] " pl bossart
2011-03-15 23:28 ` Patrick Lai
2011-03-16 7:21 ` Clemens Ladisch [this message]
2011-03-16 7:23 ` Jaroslav Kysela
2011-03-16 22:08 ` Patrick Lai
2011-03-17 7:39 ` [alsa-devel] " Clemens Ladisch
2011-03-16 10:38 ` Mark Brown
2011-03-16 10:59 ` Koul, Vinod
2011-03-16 11:56 ` Mark Brown
2011-03-16 12:17 ` Koul, Vinod
2011-03-16 17:52 ` pl bossart
2011-03-16 17:53 ` Mark Brown
2011-03-16 18:00 ` pl bossart
2011-03-16 18:08 ` Mark Brown
2011-03-17 2:21 ` Koul, Vinod
2011-03-17 5:00 ` Patrick Lai
2011-03-17 11:54 ` Mark Brown
2011-03-17 14:27 ` pl bossart
2011-03-17 18:25 ` Mark Brown
2011-03-17 19:16 ` [alsa-devel] " pl bossart
2011-03-17 20:16 ` Mark Brown
2011-03-17 21:19 ` Patrick Lai
2011-03-17 21:25 ` Mark Brown
2011-03-18 16:03 ` pl bossart
2011-03-22 13:01 ` Mark Brown
2011-03-17 5:32 ` Asus E35M1-M Pro and Realtek AL887-VD - no love from ALSA for Sourround Wojciech Myrda
2011-03-17 21:55 ` Paul Menzel
2011-03-20 10:13 ` Wojciech Myrda
2011-03-18 2:22 ` Compressed Audio Playback/Capture through ALSA framework Raymond Yau
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=4D80650C.4000006@ladisch.de \
--to=clemens@ladisch.de \
--cc=alsa-devel@alsa-project.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux@audioscience.com \
--cc=plai@codeaurora.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.