This license is also sometimes called the “4-clause BSD license”.
This is a lax, permissive non-copyleft free software license with a serious flaw: the “obnoxious BSD advertising clause”. The flaw is not fatal; that is, it does not render the software nonfree. But it does cause practical problems, including incompatibility with the GNU GPL.
The Flowplayer Free version is released under the GNU GENERAL PUBLIC LICENSE Version 3 (GPL).
The GPL requires that you not remove the Flowplayer logo and copyright notices from the user interface. See section 5.d below.
You may convey a work based on the Program, or the modifications to produce it from the Program, in the form of source code under the terms of section 4, provided that you also meet all of these conditions:
* If the work has interactive user interfaces, each must display Appropriate Legal Notices;
This license is also sometimes called the “4-clause BSD license”.
This is a lax, permissive non-copyleft free software license with a serious flaw: the “obnoxious BSD advertising clause”. The flaw is not fatal; that is, it does not render the software nonfree. But it does cause practical problems, including incompatibility with the GNU GPL.
https://www.gnu.org/licenses/license-list.html#OriginalBSD