language_code    1359 libavformat/movenc.c         put_be16(pb, language_code("eng")); /* language */
language_code    1424 libavformat/movenc.c     put_be16(pb, language_code(lang)); /* language */
language_code    1451 libavformat/movenc.c         put_be16(pb, language_code("und")); /* language */