gavf-mux(1) on Linux
The text 876ea478bc32, as Debian 12 (Bookworm) shipped it.
Multiplex multiple gavf stream into one
Flags it lists
-
-help -
-help-man -
-help-texi -
-i -
-m -
-o -
-oopt -
-stderr -
-syslog -
-v -
-version