Cargo.toml

[package]
name = "playground"
version = "0.1.0"
edition = "2021"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
ruzstd = {git="https://github.com/KillingSpark/zstd-rs", rev="b64ad31dc46633135feb3e25b7f07822aa4aca69"}

main.rs

use std::{
    fs::File,
    io::{BufReader, Read, Seek, Write},
};

fn main() {
    let reader =
        File::open("l0.blend").unwrap();

    let mut buffered = BufReader::new(reader);
    let mut result = vec![];

    let save_result = |b| {
        let mut f = File::create("partial.blend").unwrap();
        f.write_all(b).unwrap();
    };

    let mut tries = 0;

    loop {
        // check if more bytes to read
        if buffered.read_exact(&mut vec![0]).is_err() {
            break;
        }
        // rewind one byte back if more to read
        buffered.seek_relative(-1).unwrap();

        println!("More to read at {} / 129452", buffered.stream_position().unwrap());

        // try to decode the rest
        match ruzstd::StreamingDecoder::new(&mut buffered) {
            Err(e) => {
                save_result(&result);
                panic!("{e} at try {tries}");
            }
            Ok(mut sd) => {
                if let Err(e) = sd.read_to_end(&mut result) {
                    save_result(&result);
                    panic!("{e} at try {tries}");
                }
            }
        }
        tries += 1;
    }
}

output.txt

More to read at 0 / 129452
More to read at 5617 / 129452
More to read at 6712 / 129452
More to read at 7582 / 129452
More to read at 29577 / 129452
More to read at 33365 / 129452
More to read at 43495 / 129452
More to read at 45308 / 129452
More to read at 45483 / 129452
More to read at 46452 / 129452
More to read at 46971 / 129452
More to read at 47146 / 129452
More to read at 67703 / 129452
More to read at 68378 / 129452
More to read at 68527 / 129452
More to read at 68668 / 129452
More to read at 68979 / 129452
More to read at 70585 / 129452
More to read at 129291 / 129452
thread 'main' panicked at src/main.rs:34:17:
SkipFrame(407710302, 153) at try 18
stack backtrace:
   0: rust_begin_unwind
             at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:645:5
   1: core::panicking::panic_fmt
             at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panicking.rs:72:14
   2: playground::main
             at ./src/main.rs:34:17
   3: core::ops::function::FnOnce::call_once
             at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

shasums.txt

a35835626fdac39fbb55f5a57e11c2ffefde0b4afbd6305f03076f8f34b7bf9bfec381befddf86cb9b07e8e60d5f1769de67968f1ac871253afeb1a6503f479c  good.blend
28262a04c2b465b2e282adf2809e0663898061115e694116c3a165e488deb2d6afb5a2441f9252d43e82a9f9fa9c5461d9482093a0c68e0304ced4360bb3f035  l0.blend
a35835626fdac39fbb55f5a57e11c2ffefde0b4afbd6305f03076f8f34b7bf9bfec381befddf86cb9b07e8e60d5f1769de67968f1ac871253afeb1a6503f479c  partial.blend