This week I found two very informative posts regarding video metadata. I know quite a lot about dealing with metadata for images, but I wanted to learn more about concerns unique to video assets.
First, on RealSEO there is an article titled Understanding the Life of Video Metadata From Production to Publishing and Why It’s so Important. At the most basic, video metadata is important because the contents are not directly understandable by the computer.
Direct temporal or time-based metadata is a goldmine and includes such things as closed captioning, when music is played and where scenes begin and end. More subjective are things like themes and subtext. A computer just doesn’t know that The Godfather is about the rise of a New York crime family unless someone tells it via metadata that this is the theme.
Since it is inefficient for users to watch each and every video returned in a search, the metadata had better be thorough and accurate. The article goes on to talk about technical metadata, editing, publishing and archiving video.
Also on RealSEO, there is a useful section on the types of metadata for videographers. This explains in more detail some of the concepts introduced in the first article including source metadata, added metadata and derived metadata. Then, there is the metadata you have no control over:
- Explicit metadata, where users provide search engine fodder by rating a video or posting a video to a social media network.
- Implicit metadata, where it’s obvious that users have watched and enjoyed the video, without sharing it or ranking it.