Theora fourcc

Originally committed as revision 4393 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/avienc.c

@@ -184,6 +184,7 @@ const CodecTag codec_bmp_tags[] = {
     { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
     { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
     { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
+    { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
     { CODEC_ID_RAWVIDEO, 0 },
     { 0, 0 },
 };