linux-kernel - Re: [ANNOUNCE] OSS Proxy 1.2 using CUSE

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Date:	Thu, 23 Apr 2009 08:59:09 +0900
From:	Tejun Heo <teheo@...e.de>
To:	Miklos Szeredi <miklos@...redi.hu>
Cc:	linux-kernel@...r.kernel.org, greg@...ah.com, tiwai@...e.de,
	fuse-devel@...ts.sourceforge.net
Subject: Re: [ANNOUNCE] OSS Proxy 1.2 using CUSE

Hello, Miklos.

Miklos Szeredi wrote:
> Xmms with the OSS output plugin doesn't really work.  It plays like 10
> times too fast and the output is not really recognizable.

Hmm...

> This is the debug output of osspd:
> 
> osspd: OSS Proxy v1.2 (C) 2008-2009 by Tejun Heo <teheo@...e.de>
> osspd: Creating dsp (14:3), adsp (14:12), mixer (14:0)
> osspd DBG0: CREATE mixer(12799)
> osspd DBG0: S[1/16744] CREATE slave=16745 /store/git/ossp/ossp-padsp
> osspd DBG0: S[1/16744]   client=16744 cmd=7:8 notify=9:10
> ossp-padsp[mszeredi:16745] DBG0: requested frag_size (4096) is smaller than mini
> mum (4412)
> ossp-padsp[mszeredi:16745] DBG0: CREATE PLAY s16le 2ch 44100Hz fsz=4412:25
> ossp-padsp[mszeredi:16745] DBG0:   tlen=131072:743 max=139896:793 pre=8192:46
> ossp-padsp[mszeredi:16745] DBG0:   u_sd=0 u_fsz=4096:23 u_maxf=32
> osspd DBG0: S[1/16744] volume set=-1/-1:-1/-1 get=63/63:0/0
> ossp-padsp[mszeredi:16745] DBG0: PLAY stream underrun
> ossp-padsp[mszeredi:16745] DBG0: PLAY stream underrun
> ossp-padsp[mszeredi:16745] DBG0: PLAY stream underrun
> ossp-padsp[mszeredi:16745] DBG0: PLAY stream underrun
> ossp-padsp[mszeredi:16745] DBG0: PLAY stream underrun
> ossp-padsp[mszeredi:16745] DBG0: PLAY stream underrun

Hmmm..

> [...message repeated zillion times]
> 
> I guess this has something to do with the too small frag size, but
> couldn't figure out how all this works in prepare_streams() and
> padsp_write().

Yeah, it's a bit convoluted.  I'll try xmms.

Thanks.

-- 
tejun
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