[Savonet-users] silence detection: strip_blank fails

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Hi,

Yesterday I got a chance to collect some more information at our production system with failing strip_blank:

what works:

radio_blank=radio
radio=fallback( track_sensitive=false, [ radio_blank , fallback_file ] )

what does not work:

radio_blank=strip_blank(radio)
radio=fallback( track_sensitive=false, [ radio_blank , fallback_file ] )

At line 18, char 70:
   this value has type
     source(_) (infered at /usr/local/lib/liquidsoap/svn/utils.liq, line 7, char 11-72)
   but it should be a subtype of (the type of the value at line 18, char 54)
     active_source(_) (infered at line 16, char 24-48)

where radio_blank has an ALSA source and fallback_file is a mksafe(single(file)) .

2011/08/12 17:50:46 [main:3] Liquidsoap 1.0.0-beta3+svn (default@f06dbad62bb5:20110812:171459)
2011/08/12 17:50:46 [main:3] Using: graphics=[distributed with Ocaml] pcre=6.0.1 dtools=0.2.2 duppy=0.4.1 duppy.syntax=0.4.1 cry=0.2.1 mm=0.1.0 xmlplaylist=0.1.3 ogg=0.4.2 vorbis=0.6.0 mad=0.4.2 dynlink=[distributed with Ocaml] lame=0.3.0 alsa=0.2.1 samplerate=0.1.1 taglib=0.1.4 magic=0.7.3 camomile=0.7.1 soundtouch=0.1.5 pulseaudio=0.1.2 ladspa=0.1.2

Linux wbox 2.6.32-33-generic #72-Ubuntu SMP Fri Jul 29 21:08:37 UTC 2011 i686 GNU/Linux

At home (Ubuntu 11.04) the same script works fine.

Do you have any ideas?

BR, Peter