[FFmpeg-devel] How much work would it be to add support for custom metadata to mov container?

[Nikolai Weibull]

On Mon, Sep 9, 2013 at 8:26 PM, Dave Rice <dave at dericed.com> wrote:

> On Sep 9, 2013, at 12:31 PM, Nikolai Weibull <now at disu.se> wrote:
>> How much work would it be to add support for custom metadata to mov container?

I seem to have left out a key “write” in that sentence.

> It would be preferable to review existing QuickTime tags first before using custom metadata which will likely cause interoperability issues.

Sure.

>> It’s very irritating to see ffmpeg output metadata to the terminal
>> that it’s claiming that it’s outputting to the mov just to find that
>> the resulting mov doesn’t actually include any of it.
>>
>> I would love for ffmpeg to, for example, retain the location metadata
>> that the iPhone stores in the videos that I record using it.

> I started a patch to extend QuickTime metadata mapping here: http://comments.gmane.org/gmane.comp.video.ffmpeg.devel/153581

Sure, but this is only the reading part.  I’d love to be able to round-trip it.