[vorbis] ov_clear(&vorbis) segfaults?

[Alexander Markley]

Hello all. I'm new to this list. I'm also new to coding with libvorbis 
and things, so please bear with me. :)

I've been having trouble with libvorbisfile.

My use of it is fairly simple, but when I try to ov_clear the vorbis 
file, it segfaults.

I can attach or otherwise make availible some demo source code, but for 
now I'll just pull out relevant lines:

//BEGIN PSEUDO CODE
OggVorbis_File vorbis;
vorbis_info *info;

if(ov_open(infile, &vorbis, NULL, 0) != 0) error();
if((info = ov_info(&vorbis, -1)) == NULL) error();
if((availible_chunks[tint]->len = ov_pcm_total(&vorbis, -1)) == 
OV_EINVAL) error();
while((tulong = ov_read(&vorbis, tuint8p, 4096, endian, 2, 1, 
&bitstream)) != 0) dothings_withdata(); //While not end.
if(ov_clear(&vorbis) != 0) error(); //SEGFAULT!
//END PSEUDO CODE

Now, I realize that I haven't given much in the line of an example here, 
but I do have a full, compiling, smallest test-case availible to anybody 
who's interested.

Also, and this is probably of the most interest, that code extracts 
valid PCM data, and my SDL mixing/playing code plays it fine.

Any ideas?
tia
--Alex

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