MATROSKA_ID_ATTACHEDFILE  596 libavformat/matroskadec.c     { MATROSKA_ID_ATTACHEDFILE, EBML_NEST, sizeof(MatroskaAttachment), offsetof(MatroskaDemuxContext, attachments), { .n = matroska_attachment } },
MATROSKA_ID_ATTACHEDFILE 1739 libavformat/matroskaenc.c         attached_file = start_ebml_master(dyn_cp, MATROSKA_ID_ATTACHEDFILE, 0);