Parsing of tf2 demo files
This project is build using rust and requires cargo and friends, see the rust website
for how to get started.
Once rust is setup building is as simple as
cargo build --releasewhich will place the binary at target/release/parse_demo
Basic usage is as simple as parse_demo demofile.dem which will output a "summary" of the demo file in JSON format.
Passing the detailed_summary argument to the end of parse_demo will output a table with scoreboard information for all players who were ever on the server while the demo
was being recorded. The player who created the demo will be highlighted in the output.
use bitbuffer::BitRead;
use main_error::MainError;
use std::fs;
use tf_demo_parser::demo::header::Header;
use tf_demo_parser::demo::parser::{DemoHandler, RawPacketStream};
use tf_demo_parser::Demo;
fn main() -> Result<(), MainError> {
let file = fs::read("demofile.dem")?;
let demo = Demo::new(&file);
let mut handler = DemoHandler::default();
let mut stream = demo.get_stream();
let header = Header::read(&mut stream)?;
handler.handle_header(&header);
let mut packets = RawPacketStream::new(stream);
while let Some(packet) = packets.next(&handler.state_handler)? {
handler.handle_packet(packet).unwrap();
}
assert_eq!(false, packets.incomplete);
Ok(())
}Sometimes it's easier to create a custom Analyser to handle the demo data as it comes along.
See src/demo/parser/analyser.rs for an example.
Once you have a custom analyser you can use it with:
DemoParser::new_all_with_analyser(demo.get_stream(), CustomAnalyser::new());
let (header, state) = parser.parse()?;