[vorbis-dev] Reading OGG embedded in a pack file

[Ken Rogoway]

Michael,

I respect your knowledge and apologize if I am trying to do something that
is poor application design.  Having coded for over 20 years I would like
to think that I should know better, but I am a bit stumped as to how I can
have 100+ different OGG files inside a large package file, and then when
needed go and grab a single OGG file from the package to decode it for
the SDL_mixer which expects a properly decoded wave buffer.  If you have
some thoughts on how best to approach this I would greatly appreciate your
sharing them with me.

I guess my biggest problem is that I am trying to take two 3rd party
libraries
and make them work with a pack file scheme.  It sounds like I am being an
idiot in my approach.  Please explain a better way to do this.

Sincerely,

- Ken Rogoway

> Okay.  It seems like this could have been solved by having a parm for non-
> seekable streams that specified the size of the stream.  Regardless, I
> understand
> what you are saying and realize the limitations vs. what I am trying to
do.

It's very rare to have a non-seekable stream where you know the size of the
stream in advance - and it's almost completely useless. Such a parameter
would just encourage poor application design.

In your case, the stream IS seekable - it's just that you're lying to
libvorbisfile and telling it that it isn't seekable, to simplify your
implementation.

This _seems_ useful to you because of limitations in some other part of your
program.

<p>> I want to load the entire steam so I can pass off the decoded data to a
> function
> that plays wave data.

I suspected so. This is a flaw in your system - you shouldn't have to pass
the
entire stream all at once. You should seriously consider a different
approach
where you can decode incrementally and pass smaller buffers to the playback
part of your program. This isn't usually hard to do.

Mike

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