SDP attribute for qualifying Media Formats with Generic Parameters
Rajesh Kumar, Flemming Andreasen · 2003
This document defines one SDP attribute: 'gpmd', or general- purpose media descriptor. This attribute allows the use of generic parameters to qualify media formats. These generic parameters are not part of the standard (e.g. MIME) definition of the media format. The syntax and semantics of the 'gpmd' attribute and possible generic parameters that constitute it are defined, along with guidelines for the definition and registration of these generic parameters. General-Purpose Media Descriptor