[theora-dev] Differentiating Video from Audio

Erlend Davidson E.R.M.Davidson at sms.ed.ac.uk
Sat May 26 06:02:42 PDT 2007

I am trying to write a "thumbnailer" for the thunar file manager that 
can process .ogg files containing a video stream and produce a thumbnail 
of a particular frame.  The only trouble is telling which files have a 
video stream in an efficient method.  The best I've come up with is 
running ogginfo on every file with the mimetype application/ogg.

Is there a better method?

I know it has been brought up before on this list and others, but is 
there any possibility of separate mimetypes for audio and video ogg files?

Thank you,


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