Do not decode the mp3 data in lavf test since that is not bit-exact.

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

tests/lavf-regression.sh

@@ -136,7 +136,7 @@ do_lavf mkv "-acodec mp2 -ab 64k -vcodec mpeg4"
 fi
 
 if [ -n "$do_mp3" ] ; then
-do_lavf_fate mp3 "mp3-conformance/he_32khz.bit"
+do_lavf_fate mp3 "mp3-conformance/he_32khz.bit" "-acodec copy"
 fi
 
 if [ -n "$do_ogg_vp3" ] ; then

tests/ref/lavf-fate/mp3

 67cbcc79f018afb68f7d81625bfa234c *./tests/data/lavf-fate/lavf.mp3
 97230 ./tests/data/lavf-fate/lavf.mp3
-./tests/data/lavf-fate/lavf.mp3 CRC=0x3364502f
+./tests/data/lavf-fate/lavf.mp3 CRC=0x6c9850fe