[FFmpeg-user] Converting and encoding in same step without pipes

[Aarthi Priya Thirumalai]

Hello all,

In my current set, I am trying to encode content with ffmpeg. The ffmpeg
receives the source input through a Black Magic Declink 4K pro capture
card. Input to the capture card is a prores 4:2:2 4k60 10bit content from
Atomos Shogun device.
I want to convert my input from Prores 4K10 bit 4:2:2 to 4K10bit 4:2:0 and
directly encode through libx265/libx264 in ffmpeg in a single step instead
of doing the conversion and storing in a intermediary file and again
feeding that into ffmpeg.

I would like to know if there is a way to do this  - conversion and
encoding in a single step, without using system pipes in ffpmeg? pls let me
know your thoughts and suggestions.

regards,
Aarthi