From: Gustavo Zacarias <gustavo@zacarias.com.ar>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 04/10] wavpack: new package
Date: Thu, 20 Jan 2011 10:15:33 -0300 [thread overview]
Message-ID: <4D383575.7010203@zacarias.com.ar> (raw)
In-Reply-To: <87y66fbwe9.fsf@macbook.be.48ers.dk>
On 01/20/11 09:19, Peter Korsgaard wrote:
> CPUs without HW FPU are not necessarily low performance for integer
> calculations. I don't know anything about wavpack, but from the
> wikipedia page it seems like it doesn't use much FPU:
>
> No floating-point arithmetic is used in WavPack's data path because,
> according to the author, integer operations are less susceptible to
> subtle chip-to-chip variations that could corrupt the lossless nature of
> the compression (the Pentium floating point bug being an example). It is
> possible that a lossless compressor that used floating-point math could
> generate different output when running on that faulty Pentium. Even
> disregarding actual bugs, floating-point math is complicated enough that
> there could be subtle differences between "correct" implementations that
> could cause trouble for this type of application.
>
> So I would just drop this sentence.
Fair enough, armv4t @ 200 mhz seems to handle it OK at ~50% CPU load.
next prev parent reply other threads:[~2011-01-20 13:15 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-18 16:54 [Buildroot] [PATCH 00/10] Add mpd to buildroot Gustavo Zacarias
2011-01-18 16:54 ` [Buildroot] [PATCH 01/10] mpg123: install to staging Gustavo Zacarias
2011-01-19 22:52 ` Peter Korsgaard
2011-01-18 16:54 ` [Buildroot] [PATCH 02/10] libsndfile: bump to version 1.0.23 Gustavo Zacarias
2011-01-19 22:52 ` Peter Korsgaard
2011-01-18 16:54 ` [Buildroot] [PATCH 03/10] libmad: install pkgconfig file Gustavo Zacarias
2011-01-20 8:53 ` Peter Korsgaard
2011-01-20 8:56 ` Peter Korsgaard
2011-01-18 16:54 ` [Buildroot] [PATCH 04/10] wavpack: new package Gustavo Zacarias
2011-01-20 12:13 ` Peter Korsgaard
2011-01-20 12:19 ` Peter Korsgaard
2011-01-20 13:15 ` Gustavo Zacarias [this message]
2011-01-18 16:54 ` [Buildroot] [PATCH 05/10] libsamplerate: " Gustavo Zacarias
2011-01-20 12:22 ` Peter Korsgaard
2011-01-18 16:54 ` [Buildroot] [PATCH 06/10] libcuefile: " Gustavo Zacarias
2011-01-20 12:46 ` Peter Korsgaard
2011-01-20 12:55 ` Gustavo Zacarias
2011-01-20 16:34 ` Bjørn Forsman
2011-01-20 20:19 ` Peter Korsgaard
2011-01-20 20:29 ` Peter Korsgaard
2011-01-18 16:54 ` [Buildroot] [PATCH 07/10] libreplaygain: " Gustavo Zacarias
2011-01-20 12:51 ` Peter Korsgaard
2011-01-20 12:52 ` Gustavo Zacarias
2011-01-20 14:15 ` Peter Korsgaard
2011-01-18 16:54 ` [Buildroot] [PATCH 08/10] musepack: " Gustavo Zacarias
2011-01-20 20:32 ` Peter Korsgaard
2011-01-18 16:54 ` [Buildroot] [PATCH 09/10] faad2: " Gustavo Zacarias
2011-01-20 12:55 ` Peter Korsgaard
2011-01-18 16:54 ` [Buildroot] [PATCH 10/10] mpd: " Gustavo Zacarias
2011-01-18 18:29 ` Yoann Sculo
2011-01-20 13:07 ` Peter Korsgaard
2011-01-20 13:23 ` Gustavo Zacarias
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