Can't decompress data which is compressed by rust code

[WindSoilder]

Here is simplest reproducing example:

import zstandard
zstandard.decompress(b'\x28\xb5\x2f\xfd\x00\x58\x11\x00\x00\x7b\x7d')

It raises an error: ZstdError: could not determine content size in frame header

More context

I'm trying to rewrite a client application in rust, it sends compressed data to server, then server decompresses it. Unfortunally the server failed to decompress data.

Here is how I do it in client side:

use std::io::Cursor;
use zstd;

fn main() {
    let body = zstd::encode_all(Cursor::new("{}".as_bytes()), 3).unwrap();
    for x in body.iter() {
        print!("\\x{x:x?}");
    }
}

And I copied the body and decompressed it in python, and it failed.

---

If I tried to compress data({} in my example) in python, and decompressed in rust, it successes. So I think it's the issue in python side.

In rust, I'm using zstd-rs for compressing/decompressing

[g2p]

See #150; you must pass a max_output_size to decompress in this case.

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