Fix Ogg Vorbis files with vcut

fix-ogg-length.sh

#!/bin/sh

# If you have a lot of Ogg Vorbis files with lengths that are wildly
# wrong or have incomplete data at the start, you may be able to fix
# them with this script.  I invoked this for a whole directory of
# files with:
#   find . -iname '*.ogg' -print0 | xargs -0 -n 1 fix-ogg-length.sh

set -e
echo Fixing "$1"
t=`mktemp`
vcut "$1" /dev/null "$t" 1 && mv "$t" "$1"