I’m trying to decompress a zstd compressed file using the Elixir, and the library GitHub - chenzhuoyu/elixir-zstd: Elixir binding of the Zstandard library · GitHub

I’ve tried the following

    {:ok, content} = File.read("myfile")
    <<header :: binary-size(12), remainder :: binary>> = content

    {:ok, orig} = ExZstd.simple_decompress(remainder)

->  ** (MatchError) no match of right hand side value: {:error, 'Unable to determain decompressed size'}

There er no problems when running the zstd command from the terminal.

I’ve also trying the streaming solution, found in the test example.

https://github.com/chenzhuoyu/elixir-zstd/blob/master/test/ex_zstd_test.exs

But i fail to see how i get the tail, when the data is from a file, and not a compression stream.

Any who can help me out, or should i simply resort to calling the zstd command directly from my code.