retina/fuzz/fuzz_targets/roundtrip_h264.rs
Scott Lamb d29129792e dust off fuzz tests
* make them build again
* reformat
* check those things on CI. probably too expensive to actually run them.
2021-08-19 13:16:16 -07:00

63 lines
2.0 KiB
Rust

// Copyright (C) 2021 Scott Lamb <slamb@slamb.org>
// SPDX-License-Identifier: MIT OR Apache-2.0
//! Test a roundtrip through the H.264 packetizer and depacketizer with an arbitrary
//! input packet size and frame. Ensures the following:
//! * there are no crashes.
//! * the round trip produces an error or identical data.
#![no_main]
use bytes::Bytes;
use libfuzzer_sys::fuzz_target;
use std::num::NonZeroU32;
fuzz_target!(|data: &[u8]| {
if data.len() < 2 {
return;
}
let conn_ctx = retina::ConnectionContext::dummy();
let max_payload_size = u16::from_be_bytes([data[0], data[1]]);
let mut p = match retina::codec::h264::Packetizer::new(max_payload_size, 0, 0) {
Ok(p) => p,
Err(_) => return,
};
let mut d = retina::codec::Depacketizer::new(
"video",
"h264",
90_000,
None,
Some("packetization-mode=1;sprop-parameter-sets=J01AHqkYGwe83gDUBAQG2wrXvfAQ,KN4JXGM4"),
)
.unwrap();
let timestamp = retina::Timestamp::new(0, NonZeroU32::new(90_000).unwrap(), 0).unwrap();
if p.push(timestamp, Bytes::copy_from_slice(&data[2..]))
.is_err()
{
return;
}
let frame = loop {
match p.pull() {
Ok(Some(pkt)) => {
let mark = pkt.mark;
if d.push(pkt).is_err() {
return;
}
match d.pull(&conn_ctx) {
Err(_) => return,
Ok(Some(retina::codec::CodecItem::VideoFrame(f))) => {
assert!(mark);
break f;
}
Ok(Some(_)) => panic!(),
Ok(None) => assert!(!mark),
}
}
Ok(None) => panic!("packetizer ran out of packets before depacketizer produced frame"),
Err(_) => return,
}
};
assert_eq!(&data[2..], &frame.data()[..]);
assert!(matches!(d.pull(&conn_ctx), Ok(None)));
assert!(matches!(p.pull(), Ok(None)));
});