[FFmpeg-devel] [PATCH] avformat, ffmpeg: deprecate old rotation API

Clément Bœsch u at pkh.me
Tue Mar 21 15:09:49 EET 2017

On Tue, Mar 21, 2017 at 08:42:58AM +0100, wm4 wrote:
> The old "API" that signaled rotation as a metadata value has been
> replaced by DISPLAYMATRIX side data quite a while ago.
> There is no reason to make muxers/demuxers/API users support both. In
> addition, the metadata API is dangerous, as user tags could "leak" into
> it, creating unintended features or bugs.
> Unfortunately, hacks have been added, that allow the user to override
> rotation by setting metadata explicitly, e.g. via
>   -metadata:s:v:0 rotate=0

does remux and transcode properly keeps the property? And the other way
around, can we still remove the rotate property?


Clément B.
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