Content Rating mp4 metadata field

harroguk · February 8, 2024, 11:48pm

I am trying to write a “content rating” of “TV-Y” to my mp4 file so that Plex can pull it through and detect it as content rating when doing a media scan. The library is set to scan local metadata only so only metadata from the file is displayed.

I have this working for genre by post processing my file with ffmpg however I cannot work out what filed I should be writing to for “content rating”. I believe the code that handles this is…

github.com

squaresmile/Plex-Plug-Ins/blob/master/LocalMedia.bundle/Contents/Code/videohelpers.py#L115


      
          try:
            releaseDate = tags["\xa9day"][0]
            releaseDate = releaseDate.split('T')[0]
            parsedDate = Datetime.ParseDate(releaseDate)
            item.originally_available_at = parsedDate.date()
            item.year = parsedDate.year
          except: pass
          
          # Content Rating
          try:
            rating = tags["----:com.apple.iTunes:iTunEXTC"][0].split('|')[1]
            if len(rating) > 0:
              item.content_rating = rating
          except: pass
          
          # Look for iTunes-style metadata, use regular tags otherwise
          try:
            pl = plistlib.readPlistFromString(str(tags["----:com.apple.iTunes:iTunMOVI"][0]))
          except:
            pl = None

With yt-dlp I have used…
--postprocessor-args "Metadata:-metadata Genre=Kids -metadata rating=TV-Y"

Genre is working as expected, content_rating is not

BigWheel · February 9, 2024, 12:56am

As far as I can see the field is called

ContentRating

I just added TV-MA via MetaZ.app on macOS and it worked fine. This is how it shows in MediaInfo.app

harroguk · February 9, 2024, 1:25am

So I “think” the issue is that mp4 containers on windows by default don’t have a field for content_rating…

which leave me wondering, what field is it storing ----:com.apple.iTunes:iTunEXTC this in from the code snippet and can I emulate it?

harroguk · February 9, 2024, 2:36am

Doh, iTunEXTC is the field. If I use Kid3 to populate it with…
mpaa|TV-Y|300|BecasueReasons then the content rating to TV-Y will show up inside plex

Now to work out how to write that field with ffmpeg or something else supported by yt-dlp because --postprocessor-args "Metadata:-metadata iTunEXTC=mpaa|TV-Y|300|BecasueReasons" doesnt seem to add the tag at all

system · May 9, 2024, 2:36am

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Content Rating mp4 metadata field

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