[speex-dev] querying submodes
Jean-Marc.Valin at USherbrooke.ca
Wed Mar 31 12:42:37 PST 2004
> This works well. Now a followup question. Is there a way to know how
> many sub-modes exist? I ask because I found out that i will crash if I
> try to pass in an invalid sub-mode value. I can probably determine
> this out by looking at the source code, but ideally it would be nice
> for it to be determined at run-time so that I can build UI that lets
> the user choose various speex settings without hard-coding values.
Actually, the query function *should* (otherwise, it's a bug) return -1
if the submode doesn't exist.
> (I assume that the quality setting of 0-10 does not have a 1:1
> correspondence to submodes yes? For example, it looks like narrowband
> quality 7 and 8 are the same, is that accurate?)
That's right, there are only 8 submodes for narrowband (9 if you count
the "no transmit" mode) and 11 quality settings (including quality 0),
so there has to be dupes.
Université de Sherbrooke, Québec, Canada
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