The 2xAV Plug-in adds a "slider bar" to the RealPlayer that let's you change
the playback rate of Video and Audio from 1/3 to 2.5 times normal speed without pausing
playback.
Object libraries you can link to using C or C++ header files to add Time-Scale
Modification to your existing Product (Windows, Solaris, Unix, GNU-Linux, ARM processor).