I want to provision Out of the Box CTs Audio, Video and Image to my Custom Web Template which is based on "BDR#0" in SharePoint 2013. How i do this ? Should i need to provision some feature to my custom web Template to accomplish this ? if yes, then what is the Id of that feature ?
They should be provisoned by default. Here is a guide of how to add them to a list http://sharepointontop.blogspot.se/2012/09/sharepoint-2013-videoaudio-content-types.html
They are part of Publishing in SharePoint, so make sure publishing is enabled.
The Content types are automatically available in Asset Libraries. So if you create an asset library, it will be preconfigured: http://office.microsoft.com/en-us/office365-sharepoint-online-enterprise-help/set-up-an-asset-library-to-store-image-audio-or-video-files-HA102785730.aspx
To active Publishing in your WebTemplate: Site Scoped features:
Web Scoped features: