[libav-api] using libav to update metadata

Anton Khirnov anton at khirnov.net
Thu Sep 12 07:25:57 CEST 2013


On Wed, 11 Sep 2013 12:08:19 -0400, Andrew Kelley <superjoe30 at gmail.com> wrote:
> Reading metadata is extremely simple. There's a nice metadata-example.c
> which demonstrates displaying all metadata for an input file.
> 
> What about updating metadata?
> 
> Do you have to re-mux the file to do so? Is it possible to update metadata
> without destructive side-effects on the stream? Is there an example of this?

No, libavformat API is such that you're either demuxing the file or muxing it.
There is currently no API for updating a file in place.

-- 
Anton Khirnov


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