[vorbis] Source Code for ACM Codec

[engdev]

The whole microsoft ACM thing was only just short of a dogs breakfast!

I agree fully with Jack, perhaps the ACM" version was trying to do the
impossible with DEcoding. There is almost no chance it would be able to
decode "standard" vorbis streams. Hence, it's useability would be severly
crippled.

However, I wanted to use the ACM for ENcoding, and it crashed in a screaming
pile (well, actually, there was no sound at all). From my perspective
(wanting to encode) it was quite possible - although it is against what the
vorbis codec is all about (constant Q vs. constant bps).

The reason I did this is that my (commercially written) application only had
an ACM interface, so I got locked out of vorbis (which was very annoying).

<p>>
> Yes, if your ogg file has the same min/max it will work, but almost no
> ogg files are of this form, so the ACM plugin could only play a very
> tiny percentage of ogg files.  What's the point of that?
>
> Since there was no way to resoolve this issue and DirectShow plugins
> surfaced, I'm sure whoever wrote the ACM plugin decided not to bother
> anymore.  Any decent apps should be supporting directshow by now, as
> even microsoft has abandoned ACM for new things.
>
> jack.

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