only produce empty flac file

[lixinghe1999]

Hello everyone,
I am using the code: pyflac example.wav -o pyflac.flac to get FLAC file.
However, the output file is always empty and there is no warning or error.
Can you give me some hints for it?

Also, I can successfully save FLAC file with soundfile, which partially validate my FLAC library is correct.

[lixinghe1999]

I guess I figure it out.
FLAC, pyFLAC both only accept integer input.
soundfile read can't automatically tackle it but will turn floating-point to 0.