Esri has released an updated version of the Full Motion Video (FMV) add-in, version 1.4.2, for the current version of ArcMap (10.8.x). If you are using earlier versions of ArcMap, you'll need different versions of the add-in. Refer to http://esriurl.com/FMVmanual for supported versions.
IMPORTANT: Please note that FMV has been supported in ArcGIS Pro (with the Image Analyst extension) since Pro version 2.2, and all active development is focused on the 64-bit 3D environment of ArcGIS Pro. For users on the 10.x platform, FMV has been recompiled for compatibility with 10.8.x, but no new features are being added into the 10.x platform. Users are encouraged to move to Pro for the latest capabilities which include
Viewing in 2D and 3D
Support for VMTI (video moving target indicator) metadata
Support of a DEM in the Video Multiplexergeoprocessing tool
For video captured with appropriate metadata (regarding camera location and orientation), FMV enables viewing and processing of video in a mapping environment. FMV is compatible with a variety of common video formats, whether captured from fixed vantage points, manned aircraft, or drones.
Refer to the landing page at http://esri.com/FMV for further information, and go to my.esri.com if you need to download the software for ArcMap 10.x. For ArcGIS Pro with the Image Analyst extension, no download is required.