SECTION_ID_NONE   638 fftools/ffprobe.c         (wctx->section[wctx->level-1])->id : SECTION_ID_NONE;
SECTION_ID_NONE   659 fftools/ffprobe.c         wctx->section[wctx->level-1]->id : SECTION_ID_NONE;
SECTION_ID_NONE   661 fftools/ffprobe.c     if (parent_section_id != SECTION_ID_NONE)