...
To configure the html for the video asset go to sitecore → Templates → Branches → DFS → AssetTypeOutputRoot → AssetTypeOutputRoot and select the 01 - Video item.
The Html section contains the html template for the different content areas. The 2 important fields for video playback is Rich Text Editor Media and Asset Field Type. This is what gets rendered when you insert an video asset into RTE or uses the DAM for Sitecore asset field.The stampvalues in the html are tags that will be replaced through a pipeline. Read more about the stampvalues under section 3.6. When ever you make any change to these fields, then you have to synchronize you silo for it to work with the changes.