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Date:      Sun, 15 Jan 2012 11:08:06 +0200
From:      Andriy Gapon <avg@FreeBSD.org>
To:        Doug Barton <dougb@FreeBSD.org>
Cc:        freebsd-multimedia@FreeBSD.org, Alexander Motin <mav@FreeBSD.org>, FreeBSD current <freebsd-current@FreeBSD.org>, Steve Kargl <sgk@troutmask.apl.washington.edu>
Subject:   Re: [RFT] Major snd_hda rewrite
Message-ID:  <4F129776.8050406@FreeBSD.org>
In-Reply-To: <4F11FEE6.8060006@FreeBSD.org>
References:  <4F0DE3FD.2020203@FreeBSD.org> <20120112115220.1c32b3e2@ernst.jennejohn.org> <4F0EC17B.8040908@FreeBSD.org> <20120114212553.GA18574@troutmask.apl.washington.edu> <4F11FEE6.8060006@FreeBSD.org>

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on 15/01/2012 00:17 Doug Barton said the following:
> On 01/14/2012 13:25, Steve Kargl wrote:
>> Remove dvd insert music cd in drive, 'cdcontrol play'.  The
>> drive is reading the cd and 'cdcontrol status' indicates
>> that it is playing.  No sound.
> 
> The way that this was explained to me (and I'm certainly no expert) is
> that in the ATA-CAM world the only way the access method used by
> cdcontrol will be able to play the music is if there is a direct (wired)
> connection from the cd player to the sound card, like we had back in the
> 80's. :)  Other tools (such as vlc, mplayer, etc.) use the cdda://
> method of access, which does not rely on the wire.
> 
> (As I understand it) this also explains why dvds work, but cds don't.

Just a note: this has nothing to do with ATA-CAM.  It has always been the case
for cdcontrol play.

-- 
Andriy Gapon



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