21149mp4 -

: Keysight produces a series of x1149 Boundary Scan Analyzers used for circuit board testing. The string may be a truncated or specific license code/firmware version for their Result Analyzer or IEEE 1687 development licenses .

: It may be a specific metadata tag used in automated content summary systems or communication network interfaces, such as those described in media streaming patents like US 9,860,613 B2 . 21149mp4

However, based on the components of the string, it most likely refers to one of the following: : Keysight produces a series of x1149 Boundary