[Libav-user] Preserve aspect ration while using sws_scale() API

[rohit khali]

Hi,

I am using sws_scale() API to scale my decoded YUV(any format) to YUV420P
with 'new' width and height.
Instead of hardcoding destination width and height, I want to preserve the
original aspect ratio. My idea was to provide destination height and let
API decide on width using aspect ratio.
Is there a way to achieve this?
Thanks in advance for the help!

Regards,
Rohit Khali
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