FLAC streams with VLC do not output header (unplayable)

When using cvlc to mirror a FLAC stream from MPD, the stream on cvlc cannot be played unless "ffplay -f flac" or "vlc --demux avformat --codec avcodec" is used.

cvlc --file-caching=2048 http://192.168.1.2:9001/stream.flac --sout '#transcode{acodec=flac}:standard{access=http,mux=raw,dst=:9001/stream.flac}'

cvlc --file-caching=2048 http://192.168.1.2:9001/stream.flac --sout '#duplicate{dst=std{access=http{mime=audio/flac},dst=:9001/stream.flac}}'

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information