Re: Audio Library Design

On Thu, 2010-09-23 at 16:24 -0230, Eric Stock wrote:
>         I look forward to getting some feedback on these designs.
>         Note, I am only
>         talking about load and play sounds here.  I think I understand
>         how to handle
>         the streaming of an ogg file, by loading the compressed data
>         into memory and
>         then decompressing and streaming from the location in memory.

Hey Eric. I recently had to design something very similar, the audio
module of my game engine (www.avaneya.com). What I've done, and many
others have, is to make a distinction between static and streaming audio
sources. Static are loaded once in their entirety into a buffer (a short
sound effect), and streaming are loaded a portion at a time from disk
(e.g. music).

I would also recommend you have the SetVolume() behaviour as a method of
the sound object itself, rather than as part of your singleton. That's
subjective, of course, and entirely up to you.

You can take a look at the design I came up with which might be useful
to you here on p12 of the design document PDF:

https://www.avaneya.com/temp/design/

Hope that helps,

-- 
Kip Warner -- Software Engineer
OpenPGP encrypted/signed mail preferred
http://www.thevertigo.com

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