On Feb 11, 2008 6:31 PM, Reinhard Nissl rnissl@gmx.de wrote:
Just a guess: maybe the above bih.biXPelsPerMeter and bih.biYPelsPerMeter can be used to set the pixel aspect ratio which will then in turn yield the frame aspect ratio when applied to the coded frame size. So pixel aspect for the above sample should yield:
pa = 1.81818 * 1080 / 1440 = 1.363635
and most likely:
bih.biXPelsPerMeter=13636
I tried that, what would the bih.biYPelsPerMeter be in this instance? 10000? Even then it doesn't seem to make any difference.
There is a reference to that structure here: -
http://www.herdsoft.com/ti/davincie/davp3xo2.htm
I think I'm quite close to getting this sorted but just can't seem to get this final output right.. :-(