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

Carl Eugen Hoyos ceffmpeg at gmail.com
Wed Dec 26 13:41:42 EET 2018

> 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

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