[FFmpeg-user] Question about handling / unwanted changes of SAR in ffmpeg

[Carl Eugen Hoyos]

> Am 26.12.2018 um 12:07 schrieb Ulf Zibis <Ulf.Zibis at gmx.de>:
> 
> Hi,
> 
>> Am 26.12.18 um 02:00 schrieb Carl Eugen Hoyos:
>> SAR is expected to change if you crop.
> I do not agree with. SAR should not change, so the video always shows a
> circle as a correct circle. Only the DAR should change from cropping.

That is correct, sorry!

>> Rounding can be different for different codecs and containers.
> 
> This may be a reason, but one should be able to work around.

The work-around is part of FFmpeg and cannot be disabled.

Carl Eugen