Glsof vs Perian
A side-by-side look at Glsof and Perian. For an in-depth review of either product, follow the links below.
Glsof
Os & Utilities
Glsof is a free, open source command line tool for listing open files on a system. It shows which files are opened by which processes, similar to lsof, but focused on OpenGL and OpenGL ES connections.
openglopen-filesprocess-monitoring
Perian
Video & Movies
Perian is a free, open source QuickTime component that adds native support for many popular video formats like AVI, FLV, and MKV to QuickTime Player and other QuickTime-based applications on Mac OS X.
quicktimevideocodec