cmake find_package(Ffmpeg) examples

sciapp/gr CMakeLists.txt :152 

find_package(Ffmpeg 57.48.100)

TigerVNC/tigervnc CMakeLists.txt :221 

find_package(Ffmpeg)

TigerVNC/tigervnc CMakeLists.txt :223 

find_package(Ffmpeg REQUIRED)