rewriting video/picture's metadata on mac
1. install exiftool
2. list metadata: exiftool -a -G1 -s file.mov
3. rewrite: exiftool -v -overwrite_original -all=null file.mov
1. install exiftool
2. list metadata: exiftool -a -G1 -s file.mov
3. rewrite: exiftool -v -overwrite_original -all=null file.mov