Support "A format generated by IndigoVision 8000 video server".

Originally committed as revision 20681 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/allformats.c

@@ -99,6 +99,7 @@ void av_register_all(void)
     REGISTER_DEMUXER  (IPMOVIE, ipmovie);
     REGISTER_MUXER    (IPOD, ipod);
     REGISTER_DEMUXER  (ISS, iss);
+    REGISTER_DEMUXER  (IV8, iv8);
     REGISTER_DEMUXER  (LMLM4, lmlm4);
     REGISTER_MUXDEMUX (M4V, m4v);
     REGISTER_MUXDEMUX (MATROSKA, matroska);