[FFmpeg-user] Rotating output in transcode pipeline with C

[Victor dMdB]

Hi!

I have an input stream which comes from a mobile device, and therefore
has rotation metadata and side_data display matrix.

I would like to transcode this, then output a stream, physically rotated
without metadata.

Do I have to use avfilter? Or can I set a parameter in avformatcontext
to transpose it?

I've tried setting the output side_data, but would prefer directly
output the rotated frames.

Thanks in advance for the help!