Re: jack2

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On Sun, Apr 11, 2010 at 12:02 PM, Andy Shevchenko wrote:
> On Thu, Nov 5, 2009 at 5:23 PM, Andy Shevchenko
> wrote:
>> Hello.
>>
>> Nowadays the jack project has two branches - old jack (1) branch with
>> version 0.116.2 and new one called jack2 version 1.9.3.
>> I'd like to gather opinions and suggestions about applying new version for F13.
>> Please, share your thoughts!
>> Thank you.
>
> Recently I have received following letters:
>
>
> ---------- message ----------
> From: Adrian Knoth
> Date: Wed, Mar 31, 2010 at 2:55 PM
> Subject: Coordinated jackd upgrade
> To: andy.shevchenko
>
>
> Hi Andy!
>
> I'm the Debian maintainer for jackd, ardour, ffado, qjackctl and some
> more packages related to pro-audio.
>
> After a long discussion, the Debian Multimedia Team decided to switch to
> jackd2 in squeeze, our upcoming release.
>
> We already coordinated with Ubuntu, they'll also switch ASAP, though
> it's too late for their soon to be released Lucid.
>
> We also contacted Opensuse (yesterday, answer pending), and now Fedora.
> The idea is to have all major Linux distros using the same jackd
> version, so users don't experience different levels of functionality
> depending on the distro they use, non-applicable recipes from the
> Internet, missing features and so on.
>
> The rationale for our switch to jackd2:
>
>  * ABI-compatible drop-in replacement for jackd1, so no need to change
>    or recompile any application
>
>  * SMP support. jackd1 can only use one processor/core
>
>  * soundcard reservation. jackd2 can talk to pulseaudio via DBUS to
>    acquire the soundcard, so no need to manually shutdown or rip off
>    PA when a user wants to start jackd.
>
>  * support for ladish session manager (http://ladish.org)
>
>
> In general: more features, more everything. The Fedora-derived pro-audio
> CCRMA distro uses jackd2, the Gentoo pro-audio overlay uses jackd2,
> Ubuntu-Studio64 uses it and so on and so on...
>
>
> We have our jackd2 package almost ready, so if you like, we can send you
> a tarball if this helps.
>
> How do you feel about this coordinated approach?
>
>
> Cheerio
>
>
> ---------- message ----------
> From: Adrian Knoth
> Date: Wed, Mar 31, 2010 at 4:16 PM
> Subject: Re: Coordinated jackd upgrade
> To: Andy Shevchenko
>
>
> On Wed, Mar 31, 2010 at 03:02:08PM +0200, Andy Shevchenko wrote:
>
> Hi!
>
>> > Hi Andy!
>> Because this is private message I would like to ask about possibility
>> to forward this mail to the fedora-devel@ mailing list.
>
> Of course, feel free to forward and if need be CC me, just in case you
> want me to reply to something... this also holds true for this mail.
>
>
> I see you've been discussing the very same problems. ;) Here are some
> decisions we made:
>
>  * only one package, that is, we ship jackd2, not jackd1+jackd2.
>    There's no need for two packages, jackd1<->jackd2 are drop-in
>    replacements to each other. Consequently, we avoid virtual packages.
>
>  * Realtime permissions: our jackd package creates the file
>    /etc/security/limits.d/audio.conf with the following content:
>
>    @audio   -  rtprio     95
>    @audio   -  memlock    unlimited
>
>
> The jackd2 package is missing manpages. For a start, we'll simply copy
> them from jackd1, but let me talk to upstream. This needs to be solved
> in jackd2 anyway.
>

I don't object the change. Let us ask the CCRMA folks to get their opinions.

Orcan
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