SALSA-Lib version 0.0.1 release

SALSA-Lib version 0.0.1 release

[Takashi Iwai]

Hi all,

I created a small replacement of ALSA-library, mainly for embedded
systems with limited resources.  The library is named as "SALSA-Lib"
(too easy, eh?)

It has no plugin layer but only hw layer, thus no sexy features like
dmix and format conversions are available.  It supports no shiny and
complex configuration files.  And it supports no sequencer.  The only
goal of this library is the reduction of the size of library and
running binaries by inlining functions with direct syscalls.

The library is designed to be source-level API compatible with the
normal alsa-lib 1.0.14.  Note that it is _not_ designed to be
binary-compatible at all, and it will be never so.

The first released version 0.0.1 is available at:

	ftp://ftp.suse.com/pub/people/tiwai/salsa-lib/salsa-lib-0.0.1.tar.bz2

The package is released under LGPL as well as the original alsa-lib.

I've tested it only on i386, and tests on other architectures would be
greatly appreciated.


(And, no, I didn't make it on HG tree yet.)

Takashi

Re: SALSA-Lib version 0.0.1 release

[Rene Herman]

On 06/04/2007 04:28 PM, Takashi Iwai wrote:

> I created a small replacement of ALSA-library, mainly for embedded
> systems with limited resources.  The library is named as "SALSA-Lib"
> (too easy, eh?)

No. Too cute perhaps, but I like it anyway...

Thank you for this. Other than embedded use it's also going to be useful as 
educational material for someone who wants to understands the basics of the 
kernel/user interface.

Rene.

Re: SALSA-Lib version 0.0.1 release

[Alan Horstmann]

On Monday 04 June 2007 15:28, Takashi Iwai wrote:
> Hi all,
>
> I created a small replacement of ALSA-library, mainly for embedded
> systems with limited resources.  The library is named as "SALSA-Lib"
> (too easy, eh?)

Maybe...have you seen:-

http://fgbrs.lip6.fr/salsa/Software/index.php

http://www.cs.cornell.edu/Courses/cs501/2000fa/project-folder/SALSA.html

and Mail-Salsa?

Good project though!

Alan

Re: SALSA-Lib version 0.0.1 release

[Graeme Gregory]

On Mon, 2007-06-04 at 16:28 +0200, Takashi Iwai wrote:
> Hi all,
> 
> I created a small replacement of ALSA-library, mainly for embedded
> systems with limited resources.  The library is named as "SALSA-Lib"
> (too easy, eh?)
> 
Just added it to OpenEmbedded so arm/ppc/mips etc guys can take a look.

It builds on arm BTW but I havent used it.

Graeme

Re: SALSA-Lib version 0.0.1 release

[John L. Utz III]

On Mon, 04 Jun 2007 16:28:30 +0200
"Takashi Iwai" <tiwai@suse.de> wrote:

> Hi all,
> 
> I created a small replacement of ALSA-library, mainly for embedded
> systems with limited resources.  The library is named as "SALSA-Lib"
> (too easy, eh?)

dude, u rawk my world! :-) thankyou very much!!!

> It has no plugin layer but only hw layer, thus no sexy features like
> dmix and format conversions are available.  It supports no shiny and
> complex configuration files.  And it supports no sequencer.  The only
> goal of this library is the reduction of the size of library and
> running binaries by inlining functions with direct syscalls.

This has the possibility of being an absolutely marvelous thing.

> The library is designed to be source-level API compatible with the
> normal alsa-lib 1.0.14.  Note that it is _not_ designed to be
> binary-compatible at all, and it will be never so.
> 
> The first released version 0.0.1 is available at:
> 
> 	ftp://ftp.suse.com/pub/people/tiwai/salsa-lib/salsa-lib-0.0.1.tar.bz2
> 
> The package is released under LGPL as well as the original alsa-lib.

I will try and put it to use after i get my current product issue
resolved.

> I've tested it only on i386, and tests on other architectures would be
> greatly appreciated.
> 
> 
> (And, no, I didn't make it on HG tree yet.)
> 
> Takashi
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
> 

Re: SALSA-Lib version 0.0.1 release

[Takashi Iwai]

At Mon, 25 Jun 2007 23:32:39 +0100,
Adrian McMenamin wrote:
> 
> > You can check ldd to the app which shlib it's linked with.
> > It should be linked with libsalsa, not libasound.
> >
> >
> > Takashi
> >
> 
> I expect I am being a bit thick here but what app? I use mpg123 and
> it's not linked with any alsa libs.
> 
> / # ldd ./mpg123
>         libm.so.0 => /lib/libm.so.0 (0x2956d000)
>         libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x2958b000)
>         libc.so.0 => /lib/libc.so.0 (0x295aa000)
>         ld-uClibc.so.0 => /lib/ld-uClibc.so.0 (0x29558000)

mpg123 is an OSS app.

> / # ldd aplay
>         libasound.so.2 => /usr/lib/libasound.so.2 (0x2956d000)
>         libm.so.0 => /lib/libm.so.0 (0x29652000)
>         libdl.so.0 => /lib/libdl.so.0 (0x29670000)
>         libpthread.so.0 => /lib/libpthread.so.0 (0x29683000)
>         libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x296a4000)
>         libc.so.0 => /lib/libc.so.0 (0x296c3000)
>         ld-uClibc.so.0 => /lib/ld-uClibc.so.0 (0x29558000)

It's liekly linked with the old libasound.

SALSA-lib is a source-level compatible library and it's _not_
binary-level compatible.  Thus, it's no drop-in replacement.
After installing salsa-lib (better use --enable-everything option to
make a libasound symlink), then you'll have to rebuild the other apps
linked with alsa-lib again.


Takashi