Generate Network Statistics (like IP & Mac-Addresses, Port No., Payload, etc.) from the ".pcap" file using c++

I am new to the networking and trying to generate the network statistics from the .pcap file but, I don't have any idea about how should I proceed. Also, I'd already done this kinda implementation using the <pcap.h> header file and, now I wanna implement the same functionality without using any of the specialized header files like <pcap.h> or <netinet/ether.h>. But, I couldn't figure-out the way I should begin and extract data from pcap file for statistics generation.