schaermu/node-fluent-ffmpeg — pull request #92 by eralpkaraduman (2012-12-11 16:00:01+00:00)
Title: Added major_brand info in metadata

I added this info so mp4 files can be validated.
mp4 files can be "isom" or "mp42". isom is an old version of mp42

ffmpeg outputs this info as:

Metadata:
major_brand : isom

This regexp works OK. But It may be necessary to omit spaces between "major_brand" and ": isom" in some cases to make it work also when it is like:

Metadata:
major_brand: isom

I am not very good with regexp so, my best shot was this.