prefix=/usr/local
exec_prefix=${prefix}
libdir=${prefix}/lib
includedir=${prefix}/include

Name: libavformat
Description: FFmpeg container format library
Version: 57.25.100
Requires: libavcodec >= 57.24.102, libavutil >= 55.17.103
Requires.private: 
Conflicts:
Libs: -L${libdir}  -lavformat -lm -pthread
Libs.private: 
Cflags: -I${includedir}