Query Regarding Opencv dependency "ffmpeg"

Hi Team, We are using "MAXST" SDK for our mobile application which has a dependency of "Opencv version 3.4.1" . We have found in the github page here "https://github.com/opencv/opencv/tree/3.4.1/3rdparty" that the folder named 3rdparty has a sub-folder named "ffmpeg" . So we wanted to know whether "GPL-2.0+-with-linking-exception" is applicable or not . It states that , You may link independent modules (e.g. 3rd-party filters and import-/export-plugins, as long as they are not based on Avisynth C or derived from it) with the Avisynth C interface only through the interfaces defined in the file avisynth_c.h header file. You may copy and distribute the resulting combined work under the terms of your choice provided, you supply the combined work along with a copy of the complete source code of the Avisynth C interface, of the version of Avisynth that you use, and distribute Avisynth under the GPL plus this exception. Please let us know whether the "ffmpeg" is implemented in opencv like stated above or not. This info is critical for our project release so we request you to help us. Thanking in advance for the support.