Andreas Rheinhardt 8c53b14599 avutil/opt: Document actual behaviour of av_opt_copy a bit more ...

In particular, document that av_opt_copy() always disentangles
allocated options even on error; this guarantee is needed to e.g.
properly free duplicated thread contexts in libavcodec on error.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

2021-08-17 19:11:57 +02:00

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