[MPlayer-users] Transcoding from one aspect ratio to another

[JD]

On 11/03/2010 03:26 PM, Nix wrote:
> On 2010.11.03. 18:06, JD wrote:
>> I have a video file that has an aspect ratio of
>> 2.353 : 1
>> I would like to transcode it to an aspect ratio
>> of 1.6 : 1 (like 1280x800).
>> Is this even possible?
> It's been a while since I lasted had to encode a video and truth be 
> told I was never that good at it but generally speaking you can change 
> how video is represented internally by messing with PAR and actual 
> resolution and/or by cropping and adding black borders change it's 
> "physical" form (DAR) (do note that this might crop away needed 
> information, also if it was anamorphic you will need to recalculate 
> the correction factor).
> Short answer: just like you can't inflate or deflate a rubber balloon 
> with a picture on it and expect that picture to stay undistorted, you 
> generally can't change image form without cropping some of it or 
> squashing it, which is what you want, if i understand correctly.
> Regards,
> nix
Yes - I now see that.
I was hoping that the technology might provide something
similar in concept, but not identical to, slowing down or speeding
up an audio while keeping the sound frequency unchanged.
But I resign :)
I will leave it as is.