ffmpeg error

[bestzxp]

I have installed ffmpeg with source code. How can I compile mpegflow by modifying the makefile.
My FFmpeg path is /home/user/Software/FFmpeg

tmp/ccCDZtEJ.o: In function ffmpeg_init()': mpegflow.cpp:(.text+0xad): undefined reference to av_frame_alloc'
/tmp/ccCDZtEJ.o: In function process_frame(AVPacket*)': mpegflow.cpp:(.text+0x390): undefined reference to av_frame_unref'
/tmp/ccCDZtEJ.o: In function read_packets()': mpegflow.cpp:(.text+0x4cc): undefined reference to av_frame_unref'
mpegflow.cpp:(.text+0x529): undefined reference to av_packet_unref' mpegflow.cpp:(.text+0x555): undefined reference to av_frame_unref'
/tmp/ccCDZtEJ.o: In function read_frame(long&, char&, std::vector<AVMotionVector, std::allocator<AVMotionVector> >&)': mpegflow.cpp:(.text+0x869): undefined reference to av_frame_get_side_data'
mpegflow.cpp:(.text+0x890): undefined reference to `av_frame_get_side_data'
collect2: error: ld returned 1 exit status
make: *** [mpegflow] Error 1