app/code/Magento/ProductVideo/README.md
This module implements functionality related to linking video files from external resources to products.
Before installing this module, note that it is dependent on the following modules:
Magento_CatalogMagento_BackendThe Magento_ProductVideo module creates the catalog_product_entity_media_gallery_value_video table in the database.
All database schema changes made by this module are rolled back when the module gets disabled and the setup:upgrade command is run.
For information about a module installation, see Enable or disable modules.
Extension developers can interact with the Magento_ProductVideo module. For more information about the extension mechanism, see Plugins.
The dependency injection mechanism enables you to override the functionality of the Magento_ProductVideo module.
A lot of functionality in the module is in JavaScript, use mixins to extend it.
This module introduces the following layouts in the view/frontend/layout and view/adminhtml/layout directories:
view/adminhtml/layout
catalog_product_newview/frontend/layout
catalog_product_viewFor more information about a layout, see the Layout documentation.
This module extends the following UI components located in the view/adminhtml/ui_component directory:
product_formFor information about a UI component, see Overview of UI components.
You can get more information at the following articles: