Fix the MATROSKA_ID_TAGDEFAULT to match the specification (instead of

libmatroska etc. typo) but continue to support the "old" value.

Originally committed as revision 23539 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/matroska.h

@@ -148,7 +148,8 @@
 #define MATROSKA_ID_TAGNAME             0x45A3
 #define MATROSKA_ID_TAGSTRING           0x4487
 #define MATROSKA_ID_TAGLANG             0x447A
-#define MATROSKA_ID_TAGDEFAULT          0x44B4
+#define MATROSKA_ID_TAGDEFAULT          0x4484
+#define MATROSKA_ID_TAGDEFAULT_BUG      0x44B4
 #define MATROSKA_ID_TAGTARGETS          0x63C0
 #define MATROSKA_ID_TAGTARGETS_TYPE       0x63CA
 #define MATROSKA_ID_TAGTARGETS_TYPEVALUE  0x68CA

libavformat/matroskadec.c

@@ -426,6 +426,7 @@ static EbmlSyntax matroska_simpletag[] = {
     { MATROSKA_ID_TAGSTRING,          EBML_UTF8, 0, offsetof(MatroskaTag,string) },
     { MATROSKA_ID_TAGLANG,            EBML_STR,  0, offsetof(MatroskaTag,lang), {.s="und"} },
     { MATROSKA_ID_TAGDEFAULT,         EBML_UINT, 0, offsetof(MatroskaTag,def) },
+    { MATROSKA_ID_TAGDEFAULT_BUG,     EBML_UINT, 0, offsetof(MatroskaTag,def) },
     { MATROSKA_ID_SIMPLETAG,          EBML_NEST, sizeof(MatroskaTag), offsetof(MatroskaTag,sub), {.n=matroska_simpletag} },
     { 0 }
 };