lavf/mov: Confine 0x00000000 to raw/twos fourcc mapping to version 0 sample descriptions

Confine the 0x00000000 to 'raw '/'twos' fourcc mapping to old version 0
sound sample descriptions, since they are the only valid sample
descriptions for this type of mapping.

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

libavformat/mov.c

@@ -1863,7 +1863,7 @@ static void mov_parse_stsd_audio(MOVContext *c, AVIOContext *pb,
         }
     }
 
-    if (sc->format == 0) {
+    if (version == 0 && sc->format == 0) {
         if (st->codec->bits_per_coded_sample == 8)
             st->codec->codec_id = mov_codec_id(st, MKTAG('r','a','w',' '));
         else if (st->codec->bits_per_coded_sample == 16)