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 7:20 UTC|newest]
Thread overview: 27+ 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
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