Make AU demuxer handle S24BE, S32BE and F64BE PCM audio.

Originally committed as revision 14834 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/au.c

@@ -39,7 +39,10 @@ static const AVCodecTag codec_au_tags[] = {
     { CODEC_ID_PCM_MULAW, 1 },
     { CODEC_ID_PCM_S8, 2 },
     { CODEC_ID_PCM_S16BE, 3 },
+    { CODEC_ID_PCM_S24BE, 4 },
+    { CODEC_ID_PCM_S32BE, 5 },
     { CODEC_ID_PCM_F32BE, 6 },
+    { CODEC_ID_PCM_F64BE, 7 },
     { CODEC_ID_PCM_ALAW, 27 },
     { 0, 0 },
 };