[Theora-dev] aspect ratio ?

[j at thing.net]

ti.aspect_numerator and ti.aspect_denominator hold the pixel aspect
ratio. cvs versions of mplayer and vlc decode this the right way.
ffmpeg2theora encodes files that use these values.

nice table on aspect ratio: http://www.mir.com/DMG/aspect.html#reftable

if ti.aspect_numerator and ti.aspect_denominator are 0 they are ignored
and no scaling is done by the players.

in mplayer the scaling is done like this:
if(sh->aspect==0.0 && context->inf.aspect_denominator!=0){
sh->aspect = (float)(context->inf.aspect_numerator * context->inf.width)/
(context->inf.aspect_denominator * context->inf.height);
}


j