How to set special characters in custom_delimiter

[dacalabrese]

Hi all,

I'm trying to configure a socket input to receive data stream sent via a TCP server. Messages are unstructured binary data, but I can configure the sender to insert a defined sequence between frames (i.e. messages).

This is to prevent messages from being buffered indefinitely. The sequence 1acffc1d is the hexadecimal representation of the binary data.

I've tried the following configuration, with no luck:

input:
  label: socket
  socket:
    network: "tcp"
    address: "127.0.0.1:60002"
    auto_replay_nacks: true
    scanner:
      lines:
        custom_delimiter: "\x1a\xcf\xfc\x1d"

Is there a way to specify a delimiter of such type (i.e. byte sequence)? For instance, I tried "\x1a\xcf\xfc\x1d" or "\\x1a\\xcf\\xfc\\x1d" but they are not interpreted as bytes.

Thank you!