aiff: add explicit goto got_sound

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Changelog

@@ -34,6 +34,7 @@ version <next>:
 - entropy video filter
 - hilbert audio filter source
 - aiir audio filter
+- aiff: add support for CD-ROM XA ADPCM
 
 
 version 3.4:

libavformat/aiffdec.c

@@ -332,6 +332,9 @@ static int aiff_read_header(AVFormatContext *s)
             /* This field is unknown and its data seems to be irrelevant */
             avio_rb32(pb);
             st->codecpar->block_align = avio_rb32(pb);
+
+            goto got_sound;
+            break;
         case 0:
             if (offset > 0 && st->codecpar->block_align) // COMM && SSND
                 goto got_sound;