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From: Abramo Bagnara <abramo.bagnara@libero.it>
To: Takashi Iwai <tiwai@suse.de>,
	alsa-devel@lists.sourceforge.net,
	Clemens Ladisch <clemens@ladisch.de>
Subject: Re: [PATCH] plugin_ops.h fixes
Date: Mon, 08 Jul 2002 19:07:28 +0200	[thread overview]
Message-ID: <3D29C6D0.D0B442F0@libero.it> (raw)
In-Reply-To: s5hadp2v7ni.wl@alsa2.suse.de

Takashi Iwai wrote:
> 
> >
> > The _norms function appears to be badly broken (_min and _max
> > interchanged, using 32/64 bits for 24/32 bit values). I didn't attempt
> > to fix it as it isn't used, either.

min & max are interchanged indeed. My bad...
Use of 32/64 bits for 24/32 bit is wanted. Take in account that this
function is called on mix results (where I need to avoid wrap before
normalization).

> 
> yes.  we can remove this stuff.
> Jaroslav, any plan to use still this one?

Please don't remove it. I've written it for pcm_mix. Maybe one day I'll
find the time to finish it.

> 
> > And the summing/normalization code in pcm_route.c treats the sample as
> > if it were unsigned.
> 
> nice spot.

Be careful here. Use of signed vs. unsigned was an hard decision.
Can you point me exactly where you see a problem?


-- 
Abramo Bagnara                       mailto:abramo.bagnara@libero.it

Opera Unica                          Phone: +39.546.656023
Via Emilia Interna, 140
48014 Castel Bolognese (RA) - Italy


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  reply	other threads:[~2002-07-08 17:07 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-07-08  9:02 [PATCH] plugin_ops.h fixes Clemens Ladisch
2002-07-08 10:25 ` Takashi Iwai
2002-07-08 17:07   ` Abramo Bagnara [this message]
2002-07-09  8:36     ` Clemens Ladisch
2002-07-09  9:23       ` Abramo Bagnara
2002-07-09 11:23         ` Clemens Ladisch
2002-07-09 12:12           ` Takashi Iwai
2002-07-09 12:21             ` Clemens Ladisch
2002-07-09 12:45               ` Takashi Iwai
2002-07-09 20:20           ` Abramo Bagnara
2002-07-10 12:21         ` Jaroslav Kysela
2002-07-10 13:21           ` another problems with signed arithmetic snd_pcm_mmap_playback_avail tomasz motylewski
2002-07-10 16:32             ` tomasz motylewski
2002-07-10 22:20           ` [PATCH] plugin_ops.h fixes Abramo Bagnara
2002-07-11  8:00             ` Jaroslav Kysela
2002-07-11  8:37           ` Clemens Ladisch

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