[FFmpeg-user] Set chapter languages in mkv format

[Moritz Barsnick]

On Thu, Jan 29, 2015 at 01:18:24 +1000, Da Rock wrote:
> When I input my ffmetadata file, I then go to mkvinfo and check my work; 
> what I find is that under the chapter display it shows the chapterstring 
> (as it terms it - title in other words), but under language it says und 
> (undetermined).

Could you provide your command lines and the ffmetadata? Can you create
a very short example (input) to demonstrate the issue?

Thanks,
Moritz