Add caf format regression test.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

tests/lavf-regression.sh

@@ -225,6 +225,10 @@ if [ -n "$do_sox" ] ; then
 do_audio_only sox
 fi
 
+if [ -n "$do_caf" ] ; then
+do_audio_only caf
+fi
+
 # pix_fmt conversions
 
 if [ -n "$do_pixfmt" ] ; then