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-rw-r--r--decoder/ihevcd_parse_slice.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/decoder/ihevcd_parse_slice.c b/decoder/ihevcd_parse_slice.c
index 3bb658e..f56ba8e 100644
--- a/decoder/ihevcd_parse_slice.c
+++ b/decoder/ihevcd_parse_slice.c
@@ -82,6 +82,9 @@
/* Bit stream offset threshold */
#define BITSTRM_OFF_THRS 8
+#define MIN_CU_QP_DELTA_ABS(x) (-26 + ((x) * 6) / 2)
+#define MAX_CU_QP_DELTA_ABS(x) (25 + ((x) * 6) / 2)
+
/**
* Table used to decode part_mode if AMP is enabled and current CU is not min CU
*/
@@ -302,7 +305,6 @@ WORD32 ihevcd_parse_transform_tree(codec_t *ps_codec,
}
AEV_TRACE("cu_qp_delta_abs", cu_qp_delta_abs, ps_cabac->u4_range);
-
ps_codec->s_parse.i4_is_cu_qp_delta_coded = 1;
@@ -315,6 +317,13 @@ WORD32 ihevcd_parse_transform_tree(codec_t *ps_codec,
cu_qp_delta_abs = -cu_qp_delta_abs;
}
+
+ if (cu_qp_delta_abs < MIN_CU_QP_DELTA_ABS(ps_sps->i1_bit_depth_luma_minus8)
+ || cu_qp_delta_abs > MAX_CU_QP_DELTA_ABS(ps_sps->i1_bit_depth_luma_minus8))
+ {
+ return IHEVCD_INVALID_PARAMETER;
+ }
+
ps_codec->s_parse.s_cu.i4_cu_qp_delta = cu_qp_delta_abs;
}