Re: [9fans] Ogg/Vorbis ported

[hiro <23hiro@googlemail.com>]

That's great.
There's also the celt codec, which has low delay and a quality which
is pretty much from outer space...
I thought about it, but can't port it.

On Wed, Jan 28, 2009 at 6:53 PM, Mathieu Lonjaret <lejatorn@gmail.com> wrote:
> Hello all,
>
> Subject says it all; as my first port I did libogg and libvorbis.
>
> I did it mainly as a learning exercise, so it's far from perfect, but
> both the libs compile as well as the simple encoder and decoder from
> the 'examples' dir.
> I have not tried the encoder, but the decoder seems to be running fine
> like that:
> cat somefile.ogg | ./decoder_example > /dev/audio
>
> I did no try to rework things, like the types for example (as it was
> done for libmad/mp3dec in rsc's contrib), I limited myself to fix
> things the best I could until it built fine. So constructive
> criticism, remarks, comments, are of course welcome please. In
> particular, I'm not sure about these various things I did:
> 1) changed all the alloca calls to some malloc/free
> 2) added a rint function
> 3) commented out most of the #if defined ... (seemed safe since most
> were gnuisms, gcc, or win32 specific).
> 4) the 'max' and 'min' vars seemed to pose a problem (although I
> wasn't able to find them already defined on plan9), so renamed them to
> things like local_max.
> 5) created some new headers and moved some code in there to make it cleaner.
> 6) the various locations I set in the mkfile to install things.
> Also, the weirdest I think was these 3 extern funcs:  floor1_fit,
> floor1_interpolate_fit, floor1_encode which were declared with a void
> * as one of the args, but which were used with a struct * instead.
> Seems like fixing the declarations and moving them to a header made
> things build fine but I'm not sure of what was the initial intent
> here.
>
> They're hosted as indicated below at the moment, but if they're not
> deemed worthless, could I have a contrib dir so they can be installed
> with fgb's replica please?
>
> http://www.ipgp.jussieu.fr/~lonjaret/libogg.tar.gz
> http://www.ipgp.jussieu.fr/~lonjaret/libvorbis.tar.gz
>
> Next should be a decent player, and other of the vorbis-tools, if I
> can get around the ncurses dependency.
>
> Thanks to rsc for 9vx (haven't tested on native plan9 btw), and to
> sqweek and quintile for their advices.
>
> Cheers,
> Mathieu
>
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