diff --git a/mpp/hal/rkdec/vp9d/hal_vp9d_vdpu34x.c b/mpp/hal/rkdec/vp9d/hal_vp9d_vdpu34x.c
index 5d082b1f..11da4718 100644
--- a/mpp/hal/rkdec/vp9d/hal_vp9d_vdpu34x.c
+++ b/mpp/hal/rkdec/vp9d/hal_vp9d_vdpu34x.c
@@ -539,28 +539,30 @@ static MPP_RET hal_vp9d_vdpu34x_gen_regs(void *hal, HalTaskInfo *task)
 
         vp9_hw_regs->common.reg028.sw_poc_arb_flag = 1;
         mpp_buf_slot_get_prop(p_hal->slots, task->dec.output, SLOT_FRAME, &mframe);
-
-        vp9_hw_regs->vp9d_param.reg65.cur_poc = mpp_frame_get_poc(mframe);
+        vp9_hw_regs->vp9d_param.reg65.cur_poc = mframe ? mpp_frame_get_poc(mframe) : 0;
         // last poc
         ref_idx = pic_param->frame_refs[0].Index7Bits;
         ref_frame_idx = pic_param->ref_frame_map[ref_idx].Index7Bits;
         if (ref_frame_idx < 0x7f) {
+            mframe = NULL;
             mpp_buf_slot_get_prop(p_hal ->slots, ref_frame_idx, SLOT_FRAME, &mframe);
-            vp9_hw_regs->vp9d_param.reg95.last_poc = mpp_frame_get_poc(mframe);
+            vp9_hw_regs->vp9d_param.reg95.last_poc = mframe ? mpp_frame_get_poc(mframe) : 0;
         }
         // golden poc
         ref_idx = pic_param->frame_refs[1].Index7Bits;
         ref_frame_idx = pic_param->ref_frame_map[ref_idx].Index7Bits;
         if (ref_frame_idx < 0x7f) {
+            mframe = NULL;
             mpp_buf_slot_get_prop(p_hal ->slots, ref_frame_idx, SLOT_FRAME, &mframe);
-            vp9_hw_regs->vp9d_param.reg96.golden_poc = mpp_frame_get_poc(mframe);
+            vp9_hw_regs->vp9d_param.reg96.golden_poc = mframe ? mpp_frame_get_poc(mframe) : 0;
         }
         // altref poc
         ref_idx = pic_param->frame_refs[2].Index7Bits;
         ref_frame_idx = pic_param->ref_frame_map[ref_idx].Index7Bits;
         if (ref_frame_idx < 0x7f) {
+            mframe = NULL;
             mpp_buf_slot_get_prop(p_hal ->slots, ref_frame_idx, SLOT_FRAME, &mframe);
-            vp9_hw_regs->vp9d_param.reg97.altref_poc = mpp_frame_get_poc(mframe);
+            vp9_hw_regs->vp9d_param.reg97.altref_poc = mframe ? mpp_frame_get_poc(mframe) : 0;
         }
         // colref poc
         vp9_hw_regs->vp9d_param.reg98.col_ref_poc =