Traffic monitor with filters

I would like to perform some specific traffic monitoring. I wonder if I can achieve it with Wireshark in any way (GUI, Lua, or scripting tshark). These are monitoring criteria I'd like to implement:

• display average bandwidth load in real-time;
• capture traffic during some period (can be days) and calculate traffic size (upload/download separately) after it stopped capturing;
• filter the above by the process name or id (browser, email client, web server, any other process);
• filter the above by IP or domain (if applicable);
• Filter http requests according to regex rules (e.g., if certain Content-Type is present)

In first two cases, I believe its important not to keep all the captured packets in memory - just calculate size/bandwidth and discard the content.

If Wireshark is not the tool to achieve it, what would you recommend? Thanks