Are the Xvid name and logo licensed under the terms of the GPL as well?
No. The GPL is a software license and covers the Xvid source code only. The Xvid name and logo are trademarks or registered trademarks worldwide. As a recipient of the Xvid code, no rights to use the Xvid name or logo are granted to you by the GPL. If you’d like to use the Xvid name or logo including but not limited to e.g. advertising your software, service or product, you’ll have to seek written permission from us prior to any such usage.