Fix DCA regression test to work across architectures.

Only the decoding step is not bit-exact, so avoid checksum for that.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

tests/codec-regression.sh

@@ -441,7 +441,8 @@ fi
 
 if [ -n "$do_dca" ] ; then
 do_audio_encoding dca.dts "-strict -2 -channel_layout 3 -acodec dca"
-do_audio_decoding
+# decoding is not bit-exact, so skip md5 of decoded file
+do_audio_decoding_nomd5
 $tiny_psnr $pcm_dst $pcm_ref 2 1920
 fi
 

tests/ref/acodec/dca

 66bd0e602be7fb97dc19151554c0ee29 *./tests/data/acodec/dca.dts
 1097124 ./tests/data/acodec/dca.dts
-e1842f7616c65612b10b23245645ac40 *./tests/data/dca.acodec.out.wav
 stddev: 8944.44 PSNR: 17.30 MAXDIFF:56478 bytes:  1060864/  1058400
 stddev: 2424.93 PSNR: 28.64 MAXDIFF:13723 bytes:  1058944/  1058400

tests/regression-funcs.sh

@@ -122,3 +122,8 @@ do_audio_decoding()
 {
     do_avconv $pcm_dst $DEC_OPTS -i $target_path/$file -sample_fmt s16 -f wav $1
 }
+
+do_audio_decoding_nomd5()
+{
+    do_avconv_nomd5 $pcm_dst $DEC_OPTS -i $target_path/$file -sample_fmt s16 -f wav $1
+}