Sorry for the delay - I had not seen your question. Short answer is no, Drone2Map does not support video.
But if you are proposing to extract frames from video and then process those video frames in Drone2Map, there are workflows to support this via ArcGIS Pro.
I've tested it, but my opinion/advice is that the two different modes (single images vs. video) have different advantages and disadvantages, and they can be very complementary for some projects, but video is generally a poor input for Drone2Map for the following reasons:
1) Single frames extracted from video have lower quality than if you were to shoot single frames --> therefore you CAN build orthos or 3D products (with limitations noted below) but the quality suffers.
2) For processing in Drone2Map you need overlap both along flightlines and also between flightlines - but we typically shoot video to capture long linear targets (pipelines, powerlines, rivers, coastlines) with a single pass. Single lines don't work well in Drone2Map, and if you're going to fly parallel lines to capture a site, I'd recommend shooting single images, not video.
3) It's also common to shoot at an oblique angle when capturing video - and unless doing multiple orbits around a building and avoiding aiming above the horizon, the resulting images do not process well in Drone2Map (or any other photogrammetry software).
4) Last, when you say "Full Motion Video" (FMV) that's a capability in ArcGIS Pro that requires specific metadata to work properly. The free iPad app "Site Scan Limited Edition" will capture this metadata, but if you use any other flight app, you won't have the complete metadata in the proper format to support FMV (see blog).
So - my advice is to use video when appropriate, but if you want to process through Drone2Map, shoot high resolution single images.
Cody B.
p.s. If you disagree and feel this would have great value, add your suggestions under Drone2Map IDEAS https://community.esri.com/t5/arcgis-drone2map-ideas/idb-p/arcgis-drone2map-ideas