diff --git a/mpp/codec/dec/av1/av1d_cbs.c b/mpp/codec/dec/av1/av1d_cbs.c
index 2452d976..0e8e0b5f 100644
--- a/mpp/codec/dec/av1/av1d_cbs.c
+++ b/mpp/codec/dec/av1/av1d_cbs.c
@@ -1158,11 +1158,15 @@ static RK_S32 mpp_av1_segmentation_params(AV1Context *ctx, BitReadCtx_t *gb,
             for (j = 0; j < AV1_SEG_LVL_MAX; j++) {
                 if (current->segmentation_update_data) {
                     flags(feature_enabled[i][j], 2, i, j);
-
                     if (current->feature_enabled[i][j] && bits[j] > 0) {
-                        if (sign[j])
-                            sus(1 + bits[j], feature_value[i][j], 2, i, j);
-                        else
+                        if (sign[j]) {
+                            RK_S32 sign_, data;
+
+                            READ_ONEBIT(gb, &sign_);
+                            READ_BITS(gb, bits[j], &data);
+                            if (sign_) data -= (1 << bits[j]);
+                            current->feature_value[i][j] = data;
+                        } else
                             fbs(bits[j], feature_value[i][j], 2, i, j);
                     } else {
                         infer(feature_value[i][j], 0);
@@ -1183,6 +1187,8 @@ static RK_S32 mpp_av1_segmentation_params(AV1Context *ctx, BitReadCtx_t *gb,
     }
 
     return 0;
+__BITREAD_ERR:
+    return MPP_ERR_STREAM;
 }
 
 static RK_S32 mpp_av1_delta_q_params(AV1Context *ctx, BitReadCtx_t *gb,
diff --git a/mpp/hal/vpu/av1d/hal_av1d_vdpu.c b/mpp/hal/vpu/av1d/hal_av1d_vdpu.c
index 41781e1f..97b4392c 100644
--- a/mpp/hal/vpu/av1d/hal_av1d_vdpu.c
+++ b/mpp/hal/vpu/av1d/hal_av1d_vdpu.c
@@ -1225,7 +1225,7 @@ void vdpu_av1d_set_segmentation(VdpuAv1dRegCtx *ctx, DXVA_PicParams_AV1 *dxva)
     RK_U8 preskip_segid = 0;
     RK_U8 last_active_seg = 0;
     /* Segmentation */
-    regs->swreg13.sw_segment_temp_upd_e   = dxva->segmentation.update_data;
+    regs->swreg13.sw_segment_temp_upd_e   = dxva->segmentation.temporal_update;
     regs->swreg13.sw_segment_upd_e        = dxva->segmentation.update_map;
     regs->swreg13.sw_segment_e            = dxva->segmentation.enabled;