[vorbis-dev] ACM codec
dan at on2.com
Mon Nov 11 04:59:13 PST 2002
I'm afraid it's been a while and my memory may be creaky, but I think the only changes I made to the ACM were fiddling with his Kanji text fields so it would compile. I didn't actually get into the guts of the code at all. For some reason I believe I ended up using 'mode 3'.
If you are using this for a specific project with specific apps that you control, I think you'll be alright. I don't think there is too much going on with this ACM version so you're probably safe installing it on user's machines. YMMV -dan
From: Dambrin Didier [mailto:gol at image-line.com]
Sent: Mon 11/11/2002 7:49 AM
To: vorbis-dev at xiph.org
Subject: Re: [vorbis-dev] ACM codec
> I successfully contacted him, received source code, and got permission to
post it on my site for a project we did -- www.on2.com/vpvision. Please
feel free to use that code off my site under the license terms, which I
believe were GPL or LGPL.
so you use it to encode the sound for a software VCR? cool
> Be warned however that Vorbis+ACM is a nasty combination right now, for
various reasons that Monty can explain if he is so inclined. In a nutshell,
there isn't a good match between Vorbis in its present state and the ACM
interface. This project used six different ACM tags, I never got a clear
understanding of the differences between them.
Yes that's my problem too, his doc seems to tell about that, but in
japanese. I already encoded a lot of my samples, I used 'mode 1' for safety.
What I understood is that only bad uses of the ACM SDK were a problem, &
indeed, it is a problem for CoolEdit that apparently can't load back ogg
encoded waves (& can't save them in a proper way, anyway). Works like a
charm with SoundForge, & the most important for me, FruityLoops loads them
I also wanted to know how 'strong' the codec was, that is, in case someone
else changes the specs a little, if it'd conflict with the version our app
would install, in case it's registered the same way in the system. I read
that you indeed patched but renamed his original codec - do you think I
should rather use yours? Did you fix some things, or enhance it for your
app's needs maybe?
In fact I also wanted to know if it's fine for him that we auto-install the
codec ourselves (I guess so). I didn't plan to use his sources, I'm fine
with the codec installed on the user's system, so that he can use it as
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