The Living Thing / Notebooks : Media metadata management and editing

OK, I make music and DJ, and I would like to bulk edit and search my media using my own criteria, especially when it comes to dealing with the crappy media metadata that other artists give me with their tracks.

See also machine listening, playing music.

editing/annotating metadata

photos

exiftool

Erase all (or most) of the explicit metadata from an image:

exiftool -all= filename.jpg

NB:

ExifTool is not guaranteed to remove metadata completely from a file when attempting to delete all metadata. For JPEG images, all APP segments (except Adobe APP14, which is not removed by default) and trailers are removed which effectively removes all metadata, but for other formats the results are less complete:

  • JPEG - APP segments (except Adobe APP14) and trailers are removed.
  • TIFF - XMP, IPTC and the ExifIFD are removed, but some EXIF may remain in IFD0.
  • PNG - Only iTXt, tEXt and zTXt chunks (including XMP) are removed.
  • PDF - The original metadata is never actually removed.
  • PS - Only some PostScript and XMP may be deleted.
  • MOV/MP4 - Only XMP is deleted.
  • RAW formats - It is not recommended to remove all metadata from RAW images because this will likely remove some proprietary information that is necessary for proper rendering of the image.

Searching audio