[Vorbis-dev] OGG loads as a naked file, but not if embedded in an IFF.

[dave at 661.org]

On Tue, 17 Dec 2013, Conrad Parker wrote:

> 
> On 17 December 2013 09:53, <dave at 661.org> wrote:
>       On Tue, 17 Dec 2013, Conrad Parker wrote:
>
>             On 17 December 2013 09:38, <dave at 661.org> wrote:
>                   On Tue, 17 Dec 2013, Conrad Parker wrote:
>
>                         I like libsndfile, but it's not designed
>             to support
>                         Ogg-in-AIFF. If your
>                         game only needs to support these
>             specific filetypes
>                         that you generate, one
>                         of which isn't supported by libsndfile,
>             then perhaps
>                         there's no need to use
>                         libsndfile here.
> 
>
>             The Ogg files aren't in an AIFF, but an IFF
>             container called Blorb.
>              It looks like I have to use libsndfile anyhow.  My
>             code for loading
>             AIFFs only works for 8-bit samples and I can't
>             figure out how to get
>             things to work for 16-bit AIFFs or how to adjust
>             their volumes
>             properly.
> 
>
>             Ah ok, yes libsndfile is great for loading AIFF but
>             it probably doesn't yet
>             have support for Blorb ;)
> 
> 
> I already have a library for parsing Blorb files.  There is no need
> for libsndfile to support it.  A Blorb file contains AIFFs, MODs, and
> OGGs as chunks.  Generally what the Blorb library does is check the
> index chunk for the sound clip desired and return a filepointer to the
> beginning of that clip.  It seems to me that it would make no
> difference to libsndfile if the file pointer (well, handle) points to
> a naked file or a portion of a container file (a Blorb file).  This
> doesn't bother libsndfile if I'm loading an AIFF the same way.
> 
> 
> right. Are you using libsndfile's virtual io functions for that?

I'm not familiar with those.

-- 
David Griffith
dave at 661.org