[FFmpeg-devel] [PATCH 1/2] clarified the usage of ISO 639 language codes

Helmut Tessarek tessarek at evermeet.cx
Wed Jan 8 22:14:05 CET 2014


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

On 08.01.14 6:48 , Michael Niedermayer wrote:
> The code must remap the language codes to what the destination supports, 
> otherwise it just cant be used, not even copying the language code from 
> one container to the other could work

I guess I haven't misunderstood after all.

Although it seems (according to the discussion in this thread) that the code
does not do this as of yet.
On the other side some logic must be already implemented, since language
tags are retained when copying streams afaik.

Well, in this case a change in the docs is just of minor usefulness.

I could look into implementing a language code conversion capability, but
I'd have to fimiliarize myself with the entire ffmpeg code structure.
A hint where to start would help a lot (where are all the containers
defined? where to put a conversion function?) I suspect it should be
somewhere around the muxer and/or encoder code...
It would help to know where in the code the reading/setting of the language
code is. But I assume that someone who knows the code could implement such a
functonality in a matter of a couple of hours. It would take me considerably
longer.

- -- 
regards Helmut K. C. Tessarek
lookup http://sks.pkqs.net for KeyID 0xC11F128D

/*
   Thou shalt not follow the NULL pointer for chaos and madness
   await thee at its end.
*/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG/MacGPG2 v2.0.22 (Darwin)

iF4EAREKAAYFAlLNv50ACgkQOehE3GSNAOGc/QD/U9R8owHdFYAw/DFkS2oQpVsj
IrOjQhywqrhPzUDRCSIA/32F4QZcPfKVCwHsTaRHI1JmwqoxHx0lD4/u3P419vIo
=B27M
-----END PGP SIGNATURE-----


More information about the ffmpeg-devel mailing list