MATROSKA_ID_CUEDURATION  637 libavformat/matroskadec.c     { MATROSKA_ID_CUEDURATION,        EBML_NONE },
MATROSKA_ID_CUEDURATION  588 libavformat/matroskaenc.c                 put_ebml_uint(cuepoint, MATROSKA_ID_CUEDURATION    , entry->duration);