add support for V_THEORA into Matroska

Original thread:
Date: Thu, 22 Mar 2007 20:23:08 -0400
Subject: [Ffmpeg-devel] [PATCH] Theora in MKV (GSoC '07 Qualification)

Originally committed as revision 8507 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/matroska.c

@@ -213,6 +213,7 @@ static CodecTags codec_tags[]={
     {"V_REAL/RV20"      , CODEC_ID_RV20},
     {"V_REAL/RV30"      , CODEC_ID_RV30},
     {"V_REAL/RV40"      , CODEC_ID_RV40},
+    {"V_THEORA"         , CODEC_ID_THEORA},
 /* TODO: Real/Quicktime */
 
 //    {"A_MS/ACM"         , CODEC_ID_NONE},