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

Victor dMdB ffmpeg at eml.cc
Tue Dec 13 17:28:07 EET 2016


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!

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