FLAC not seekable

[bibelen]

Hi.

My entire library is ALAC. I want to cast lossless music to my Chromecast. This is the transcoding line I have tried to use: ffmpeg -i %s -v 0 -map 0:0 -c:a flac -f flac -
The problem this creates is that on FOOBAR, I can't seek within the song. On DSUB, every song length is misinterpreted so every song skips before it ends.
Does anyone know a solution for this?

Thank you.

Kyrre