AV_PICTURE_STRUCTURE_BOTTOM_FIELD  538 libavcodec/h264_parser.c                     s->picture_structure = AV_PICTURE_STRUCTURE_BOTTOM_FIELD;
AV_PICTURE_STRUCTURE_BOTTOM_FIELD  113 libavcodec/hevc_refs.c         frame->frame->interlaced_frame = (s->sei.picture_timing.picture_struct == AV_PICTURE_STRUCTURE_TOP_FIELD) || (s->sei.picture_timing.picture_struct == AV_PICTURE_STRUCTURE_BOTTOM_FIELD);
AV_PICTURE_STRUCTURE_BOTTOM_FIELD  143 libavcodec/hevc_sei.c             h->picture_struct = AV_PICTURE_STRUCTURE_BOTTOM_FIELD;