Kdenlive: Rendering MP4 Video with Meta Data -- Odds and Ends

Do you also want to have your media player properly organize your rendered video files? After some trial and error, as well digging into ffmpeg code, I finally found out what meta data can be used for MP4 containers and how to correctly set Kdenlive project meta data...

Kdenlive Project Meta Data for MP4 Containers

This is an incomplete list of the Kdenlive project meta data elements supported for rendering to MP4 containers.

Note: Some default elements that Kdenlive automatically adds for each new project don't work with MP4 containers. Author and Year won't ever be added to your MP4 files, whatever you set them to.

Metadata Element	Description
Title	The title of your video. (String)
Author	The author element gets ignored when rendering to an MP4 container. Use Artist instead, see below.
Artist	The name of the artist. (String)
Year	The year element also gets ignored when rendering to an MP4 container. Use Date instead, see below.
Date	The date of production or publication. (String)
Copyright	The copyright information. May contain legalese. (String)
Description	A description of your video. (String)
Synopsis	A longer description of your video. (String)
Genre	The genre of video. (String)
Episode_ID	The episode name or identifier, if applicable. Media applications will use this for (alphabetical) sorting. (String)
Episode_Sort	Overwrites alphabetical sorting by using a small integer number in the range of 0 to 255. (int8)
...	for more MP4 container meta data elements, please see my blog post Adventures in fmpeg Meta Data Writing to MP4 Containers.

Note: Don't forget to check the "Export metadata" option in Kdenlive's render dialog. It's only available after checking "More options". Otherwise, your meta data won't get added to the rendered file.