Bug#832095: patch for SSE-optimizing resampling of stereo signals

Jaromír Mikeš mira.mikes at gmail.com
Sun Jul 24 12:24:48 UTC 2016


2016-07-22 11:24 GMT+02:00 Steinar H. Gunderson <sesse at debian.org>:
> Package: libzita-resampler1
> Version: 1.3.0-2
> Severity: wishlist
> Tags: upstream patch
>
> Hi,
>
> Please find attached a patch for SSE-optimizing resampling of stereo signals;
> it makes this more or less three times as fast on Intel systems, without
> sacrificing any quality.
>
> I talked to upstream about this patch back in the day, and he seemed happy to
> accept it, but somehow just stopped answering -- I guess he got busy with other
> things in life. It would be nice if we could get it into Debian nevertheless
> (I want it for reducing CPU used in my realtime video mixer).
>
> It is taken to be by Steinar H. Gunderson <sesse at google.com> (ie., work hat
> from my ex-job), and licensed under the same terms as zita-resampler itself
> (ie., GPLv3+).
>
> -- System Information:
> Debian Release: stretch/sid
>   APT prefers unstable
>   APT policy: (500, 'unstable'), (500, 'testing'), (1, 'experimental')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386, armhf
>
> Kernel: Linux 4.7.0-rc7 (SMP w/4 CPU cores)
> Locale: LANG=nb_NO.utf8, LC_CTYPE=nb_NO.utf8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> Init: systemd (via /run/systemd/system)
>
> Versions of packages libzita-resampler1 depends on:
> ii  libc6              2.23-2
> ii  libgcc1            1:6.1.1-9
> ii  libstdc++6         6.1.1-9
> ii  multiarch-support  2.23-2
>
> libzita-resampler1 recommends no packages.
>
> libzita-resampler1 suggests no packages.
>
> -- no debconf information

Hi,

as the patch is rather complex and change code quite a lot I would
like to see rather a new upstream release
including your work. Than apply it only in debian.
Or at least upstream approval of this patch.

best regards

mira



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