disp_node         500 libavfilter/vf_paletteuse.c     if (node->left_id  != -1) disp_node(buf, map, node_id, node->left_id,  depth + 1);
disp_node         501 libavfilter/vf_paletteuse.c     if (node->right_id != -1) disp_node(buf, map, node_id, node->right_id, depth + 1);
disp_node         521 libavfilter/vf_paletteuse.c     disp_node(&buf, node, -1, 0, 0);