108     f->slot_idx = NO_VAL;  in new_frame()
190         if (p->slot_idx == NO_VAL) {  in recompute_cycle_order_index()
217             if (p->slot_idx == NO_VAL) {  in compute_frame_order_index()
256     if (p && p->slot_idx != NO_VAL && !p->invisible && !p->is_output) {  in is_outputable_frame()
311     if (p->slot_idx >= 0 && !p->invisible && !p->is_output) {  in output_display_frame()
315         mpp_buf_slot_set_flag(p_dec->frame_slots, p->slot_idx, SLOT_QUEUE_USE);  in output_display_frame()
316         mpp_buf_slot_enqueue(p_dec->frame_slots, p->slot_idx, QUEUE_DISPLAY);  in output_display_frame()
317         avs2d_dbg_dpb("output display frame poi %d slot_idx %d, pts %lld", p->poi, p->slot_idx,  in output_display_frame()
341         mpp_buf_slot_get_prop(p_dec->frame_slots, p->slot_idx, SLOT_BUFFER, &buffer);  in dpb_remove_frame()
345     mpp_buf_slot_clr_flag(p_dec->frame_slots, p->slot_idx, SLOT_CODEC_USE);  in dpb_remove_frame()
347                   p->slot_idx, p->doi, p->poi, mgr->used_size);  in dpb_remove_frame()
351     p->slot_idx = NO_VAL;  in dpb_remove_frame()
417         if (p->slot_idx == NO_VAL) {  in dpb_remove_unused_frame()
445             if (p->slot_idx == NO_VAL) {  in dpb_get_one_frame()
458         if (p->slot_idx == NO_VAL) {  in dpb_get_one_frame()
575     ret = mpp_buf_slot_get_unused(p_dec->frame_slots, &frm->slot_idx);  in dpb_alloc_frame()
578     avs2d_dbg_dpb("get unused buf slot %d, DPB used %d \n", frm->slot_idx, mgr->used_size);  in dpb_alloc_frame()
618         if (p->slot_idx == NO_VAL || p->doi == NO_VAL) {  in find_ref_frame()
628             avs2d_dbg_dpb("found ref[%d] at slot_idx %d, doi %d", i, p->slot_idx, p->doi);  in find_ref_frame()
667                           p->slot_idx, p->doi, p->poi);  in dpb_update_refs()
705             mpp_buf_slot_set_flag(p_dec->frame_slots, p->slot_idx, SLOT_CODEC_USE);  in dpb_set_frame_refs()
706             mpp_buf_slot_set_flag(p_dec->frame_slots, p->slot_idx, SLOT_HAL_INPUT);  in dpb_set_frame_refs()
741         p_dec->syntax.refp.scene_ref_slot_idx = mgr->scene_ref->slot_idx;  in dpb_set_frame_refs()
781     avs2d_dbg_dpb("get unused frame from dpb %d", p->slot_idx);  in avs2d_dpb_insert()
789     mpp_buf_slot_set_prop(p_dec->frame_slots, p->slot_idx, SLOT_FRAME, p->frame);  in avs2d_dpb_insert()
790     mpp_buf_slot_set_flag(p_dec->frame_slots, p->slot_idx, SLOT_CODEC_USE);  in avs2d_dpb_insert()
791     mpp_buf_slot_set_flag(p_dec->frame_slots, p->slot_idx, SLOT_HAL_OUTPUT);  in avs2d_dpb_insert()
794     task->output = mgr->cur_frm->slot_idx;  in avs2d_dpb_insert()
795     avs2d_dbg_dpb("curframe slot_idx %d\n", mgr->cur_frm->slot_idx);  in avs2d_dpb_insert()
803         task->refer[i] = mgr->refs[i] ? mgr->refs[i]->slot_idx : -1;  in avs2d_dpb_insert()
805             task->refer[i] = mgr->refs[i]->slot_idx;  in avs2d_dpb_insert()
822                       i, tmp->slot_idx, tmp->doi, tmp->poi, PICTURE_TYPE_TO_CHAR(tmp->picture_type),  in avs2d_dpb_insert()
843         if (p->slot_idx != NO_VAL) {  in avs2d_dpb_flush()