ffmpeg roll of source to mar 9 version...

patched-ffmpeg-mt/libavformat/movenc.c

Index: patched-ffmpeg-mt/libavformat/movenc.c
===================================================================
--- patched-ffmpeg-mt/libavformat/movenc.c	(revision 41250)
+++ patched-ffmpeg-mt/libavformat/movenc.c	(working copy)
@@ -1355,6 +1355,8 @@
         put_buffer(pb, data, strlen(data));
         return updateSize(pb, pos);
     }else{
+        if (!lang)
+            lang = ff_mov_iso639_to_lang("und", 1);
         put_be16(pb, strlen(data)); /* string length */
         put_be16(pb, lang);
         put_buffer(pb, data, strlen(data));
@@ -1390,7 +1392,7 @@
     while ((t2 = av_metadata_get(s->metadata, tag2, t2, AV_METADATA_IGNORE_SUFFIX))) {
         len2 = strlen(t2->key);
         if (len2 == len+4 && !strcmp(t->value, t2->value)
-            && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 0)) >= 0) {
+            && (l=ff_mov_iso639_to_lang(&t2->key[len2-3], 1)) >= 0) {
             lang = l;
             break;
         }