[FFmpeg-user] MXF container tags modified when replacing audio

[Frédéric Busnel-Joncour]

>>> Sorry, I am not sure I understand correctly:
>>> If you change the value "0" for Video Line Map in a 3840x2160 file
>>> created with FFmpeg to "42", the file works with Avid Media Composer?
>> 
>> As far as I know, yes.
> 
> How do you know?

Technical advise of the TV Network that handled the files for editorial.

>> But I don't know how to change this value with ffmpeg or any other tool.
> 
> Either change the "default" video line map value in line 1166 of
> libavformat/mxfenc.c and recompile or use a "hex editor" on
> the output file.

Thanks. I'll try to recompile, even if it's always a hard way for me (never could do it with all the needed options).


Regards,

Fred