diff --git a/mpp/codec/dec/h264/h264d_api.c b/mpp/codec/dec/h264/h264d_api.c
index 74259a7d..fa5e1682 100644
--- a/mpp/codec/dec/h264/h264d_api.c
+++ b/mpp/codec/dec/h264/h264d_api.c
@@ -556,16 +556,12 @@ MPP_RET  h264d_flush(void *decoder)
         }
         goto __RETURN;
     }
-    FUN_CHECK(ret = flush_dpb(p_Dec->p_Vid->p_Dpb_layer[0], 1));
-    FUN_CHECK(ret = init_dpb(p_Dec->p_Vid, p_Dec->p_Vid->p_Dpb_layer[0], 1));
-    //free_dpb(p_Dec->p_Vid->p_Dpb_layer[0]);
+
+    FUN_CHECK(ret = output_dpb(p_Dec, p_Dec->p_Vid->p_Dpb_layer[0]));
     if (p_Dec->mvc_valid) {
-        // layer_id == 1
-        FUN_CHECK(ret = flush_dpb(p_Dec->p_Vid->p_Dpb_layer[1], 2));
-        FUN_CHECK(ret = init_dpb(p_Dec->p_Vid, p_Dec->p_Vid->p_Dpb_layer[1], 2));
-        //free_dpb(p_Dec->p_Vid->p_Dpb_layer[1]);
+        FUN_CHECK(ret = output_dpb(p_Dec, p_Dec->p_Vid->p_Dpb_layer[1]));
     }
-    flush_dpb_buf_slot(p_Dec);
+
     if (p_Dec->last_frame_slot_idx >= 0) {
         mpp_buf_slot_set_prop(p_Dec->frame_slots, p_Dec->last_frame_slot_idx,
                               SLOT_EOS, &p_Dec->p_Inp->has_get_eos);
diff --git a/mpp/codec/dec/h264/h264d_dpb.c b/mpp/codec/dec/h264/h264d_dpb.c
index 88c82072..f7335529 100644
--- a/mpp/codec/dec/h264/h264d_dpb.c
+++ b/mpp/codec/dec/h264/h264d_dpb.c
@@ -1321,6 +1321,8 @@ MPP_RET store_picture_in_dpb(H264_DpbBuf_t *p_Dpb, H264_StorePic_t *p)
         p_Dpb->used_size++;
         H264D_DBG(H264D_DBG_DPB_INFO, "[DPB_size] p_Dpb->used_size=%d", p_Dpb->used_size);
     }
+
+
 #endif
 #if 1
     {
@@ -1796,7 +1798,31 @@ __RETURN:
 __FAILED:
     return ret;
 }
+/*!
+***********************************************************************
+* \brief
+*    write out all frames
+***********************************************************************
+*/
+//extern "C"
+MPP_RET output_dpb(H264_DecCtx_t *p_Dec, H264_DpbBuf_t *p_Dpb)
+{
+    RK_S32 poc = 0, pos = 0;
+    MPP_RET ret = MPP_ERR_UNKNOW;
+    INP_CHECK(ret, !p_Dpb);
 
+    while (get_smallest_poc(p_Dpb, &poc, &pos)) {
+        p_Dpb->last_output_poc = poc;
+        FUN_CHECK(ret = write_stored_frame(p_Dpb->p_Vid, p_Dpb->fs[pos]));
+        if (!is_used_for_reference(p_Dpb->fs[pos])) {
+            FUN_CHECK(ret = remove_frame_from_dpb(p_Dpb, pos));
+        }
+    }
+__RETURN:
+    return ret = MPP_OK;
+__FAILED:
+    return ret;
+}
 /*!
 ***********************************************************************
 * \brief
diff --git a/mpp/codec/dec/h264/h264d_dpb.h b/mpp/codec/dec/h264/h264d_dpb.h
index 89695d24..96146b2b 100644
--- a/mpp/codec/dec/h264/h264d_dpb.h
+++ b/mpp/codec/dec/h264/h264d_dpb.h
@@ -39,6 +39,7 @@ MPP_RET store_picture_in_dpb (H264_DpbBuf_t *p_Dpb, H264_StorePic_t *p);
 
 MPP_RET init_dpb    (H264dVideoCtx_t *p_Vid, H264_DpbBuf_t *p_Dpb, RK_S32 type);
 MPP_RET flush_dpb   (H264_DpbBuf_t   *p_Dpb, RK_S32 type);
+MPP_RET output_dpb  (H264_DecCtx_t *p_Dec, H264_DpbBuf_t *p_Dpb);
 
 void    free_dpb    (H264_DpbBuf_t   *p_Dpb);
 MPP_RET exit_picture(H264dVideoCtx_t *p_Vid, H264_StorePic_t **dec_pic);