[Ffmpeg-devel] Sample Aspect Ratio & Pan&Scan

[Måns Rullgård]

M?ns Rullg?rd <mru at inprovide.com> writes:

> Nico Sabbi <nicola_sabbi at fastwebnet.it> writes:
>
>> Nico Sabbi wrote:
>>
>>> it's something that left me some doubts, too.  If pan&scan is
>>> supposed to work with the intervention of the player (by means of
>>> cropping) shouldn't lavf export both the original par(without
>>> keeping into account the pan&scan) in
>>> AVCodecContext->sample_aspect_ratio and {width, height,
>>> pan_scan_par} in AVPanScan?
>>
>> I forgot to add that recently I've seen a huge amount of dvds (more
>> than 1 out of 2) played distorted by lavc because of this pan&scan
>> thingy
>
> I have a DVD that lies about the aspect ratio.  The IFO files say it
> is 16/9, and the MPEG2 sequence header says 4/3.  Watching the video,
> it is clear that 16/9 is correct.

In case anyone is curious, it is the PAL version of Lost Highway.

> Could you please upload a few samples from the DVDs you mention?  I'd
> like to have a look at them.

If you do this, please include the output of lsdvd -v too.

-- 
M?ns Rullg?rd
mru at inprovide.com