Hi, i'm studying for metadata.
Using your library and android studio, I succeeded in adding xmp at jpeg file.
so, i tried to add xmp metadata at video file(mp4) same way. but It failed.
this is my error log.
DllDate: Aug 30 2017
UnlockPrefix: Anything for 30-day trial.
Architecture: Little Endian; 64-bit
Language: Android Java
Unrecognized file type
What is the problem??