Hi,

I hope that you can use liquidsoap, it would be great. Most of what
you need is on our roadmap for 1.0.

On Wed, Mar 18, 2009 at 5:27 PM, Frank Rousseau <[email protected]> wrote:
> * Savonet should be multi-platform ;

Liquidsoap works on all Unices (linux, BSD, OSX) and any architecture
as far as we know (we have users on several such configurations).

Concerning Windows, it's more problematic. Some time ago, Romain used
to prepare Windows binaries and installer. But it was a lot of work
(we never use Windows) and there was little feedback. So he stopped.
If somebody wants to try again, I'm sure Romain would help by
describing his experience. All I can say is that you need a working
OCaml environment and cygwin, and hope that Cygwin emulates the Unix
select() call well enough, because we rely a lot on it -- more than
when we last had a windows binary.

> * Multichannel audio (like 5.1) is not well handled, all channels should be 
> filled to set a multi-channel output : if I output six tracks, I have to 
> input six tracks, I can't give only 4 and tell Savonet that the other ones 
> are blank.

The treatment of arbitrary numbers of channels, and the conversions
between different sources using different numbers of channels, are at
the very beginning of my roadmap to 1.0. While I cannot give any
estimation for 1.0, I think we'll have a reasonable support for what
you ask before this summer. However, you must be prepared to use an
unstable tool (unstable not in terms of crashing, hopefully, but more
in terms of changing the way things are done).

Concerning the conversions between different numbers of channels, it
will probably be done using an explicit operator. The operator that
adds blank channels is trivial to write, but it would be useless in
the current version of liq where it is impossible to manipulate
heterogeneous formats.

> * Operators should work for multichannel edition.

Once there is a core support for the notion of format, we'll be able
to precisely track which operators work on an arbitrary number of
channels or not.

I suggest that you start playing with liquidsoap only on stereo files,
to get an idea of how it works and what you need exactly. Starting
next month, we'll add more multi-format support and you'll be able to
experiment with it quite quickly.

I understand that you may not be used to work like that. We're only
volunteers, but we're reactive: don't hesitate to mail us any
question.

I'll send mail(s) to the list on of these days to collect user wishes
about the new 1.0 features, notably concerning multiple channels: stay
tuned!

> Moreover, HD3D will try (we don't know OCAML) to provide new
> features to savonet project like upmix, dowmix...

That would be sweet. We're very open to welcome new developpers.
-- 
David

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