Hi everyone,
We've been working on a translator from MPEG4 Structured
Audio to C, and its stable enough now for a developer release.
You can download it from
www.cs.berkeley.edu/~lazzaro/sa/index.html
Here are a few excerpts from the README:
[...]
Sfront translates MPEG4 Structured Audio Object 3 bitstreams (plus
MIDI functionality from Object 4) into a C file. The object file
produced from this C file consumes input_bus audio from stdin, and
produces output_bus audio on stdout.
[...]
Sfront is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License (Version 2) as
published by the Free Software Foundation.
[...]
Sfront has been compiled using gcc on the following platforms, using
the Makefile in this directory without changes:
Solaris 2.6 (Enterprise 450)
HPUX 9.x (715/64)
Linux 2.2 (4-way Pentium Pro server -- thanks to ISL/Stanford/M. Godfrey)
IRIX 5.3 (SGI Indigo -- thanks to ICSI/UCB/Nelson Morgan)
[...]
We've been working on sfront since October 1998; the first release was
in March 1999. As of March, sfront was Object 3 compliant, with a few
exceptions; in addition, full MIDI functionality as defined for Object
4 decoders was supported.
[...]
This release of sfront is a developer release. Our own testing of
sfront has been limited to the files shipped in the examples
directory. If you are planning to use sfront to create new programs,
expect to find bugs. In addition, our focus until now has been
on getting complete functionality, not code optimization -- a quick
look at the C files sfront produces will confirm this fact.
With this developer release, our focus shifts to code optimization,
improving stability, and adding new functionality -- expect these
aspects to improve with future releases.
[...]
Many thanks to Eric Scheirer for extensive assistance in understanding
the ISO-14496-3 specification. In addition, thanks to Richard Duda,
Dan Ellis and Malcolm Slaney.
John Lazzaro
John Wawryznek
UC Berkeley
CS Division
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John Lazzaro -- Research Specialist -- CS Division -- EECS -- UC Berkeley
lazzaro [at] cs [dot] berkeley [dot] edu www.cs.berkeley.edu/~lazzaro
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