Add sac3 to mp4 fourccs for mov+h264+aac-sac3+mp4s+ETERNAL_cut.mp4

Originally committed as revision 19162 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/isom.c

@@ -200,6 +200,7 @@ const AVCodecTag codec_movaudio_tags[] = {
 
     { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, /* MPEG-4 AAC */
     { CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
+    { CODEC_ID_AC3, MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */
 
     { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
     { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */