encoding ALAC causes crash

[andrewrk]

$ ./transcode ~/tmp/05.\ Saying\ Sorry.mp3 --output ~/tmp/out.m4a --codec alac 
[mp3 @ 0x72a980] max_analyze_duration reached
encoder: using codec: ALAC (Apple Lossless Audio Codec)
encoder: using audio format: s16p, 44100 Hz, stereo
audio queue size: 32768
abuffer: time_base=1/14112000:sample_rate=44100:sample_fmt=s16p:channel_layout=0x3
aformat: sample_fmts=s16p:sample_rates=44100:channel_layouts=0x3
encoder: writing header
[ipod @ 0x76b720] Codec for stream 0 does not use global headers but container format requires global headers
[ipod @ 0x76b720] muxer does not support non seekable output
could not write header
Floating point exception (core dumped)

[fire]

Notes: I've modified groove to output fragmented mov files. However, I'm unable to get vlc to read the files.