diff --git a/include/gpac/internal/media_dev.h b/include/gpac/internal/media_dev.h
index c2c2833db1..f722dd99a6 100644
--- a/include/gpac/internal/media_dev.h
+++ b/include/gpac/internal/media_dev.h
@@ -464,7 +464,7 @@ typedef struct RepFormat
 typedef struct
 {
 	u16 avg_bit_rate, max_bit_rate, avg_pic_rate;
-	u8 constand_pic_rate_idc;
+	u8 constant_pic_rate_idc;
 } HEVC_RateInfo;
 
 
@@ -483,6 +483,7 @@ typedef struct
 	HEVC_ProfileTierLevel ptl;
 
 	HEVC_SublayerPTL sub_ptl[8];
+	//this is not parsed yet (in VPS VUI)
 	HEVC_RateInfo rates[8];
 
 
diff --git a/src/filters/reframe_nalu.c b/src/filters/reframe_nalu.c
index b680597d9a..165b0f136f 100644
--- a/src/filters/reframe_nalu.c
+++ b/src/filters/reframe_nalu.c
@@ -1018,7 +1018,7 @@ static void naludmx_create_hevc_decoder_config(GF_NALUDmxCtx *ctx, u8 **dsi, u32
 
 		if (!i) {
 			hvcc->avgFrameRate = lvcc->avgFrameRate = vps->rates[0].avg_pic_rate;
-			hvcc->constantFrameRate = lvcc->constantFrameRate = vps->rates[0].constand_pic_rate_idc;
+			hvcc->constantFrameRate = lvcc->constantFrameRate = vps->rates[0].constant_pic_rate_idc;
 			hvcc->numTemporalLayers = lvcc->numTemporalLayers = vps->max_sub_layers;
 			hvcc->temporalIdNested = lvcc->temporalIdNested = vps->temporal_id_nesting;
 		}
@@ -1183,7 +1183,7 @@ static void naludmx_create_vvc_decoder_config(GF_NALUDmxCtx *ctx, u8 **dsi, u32
 
 		if (!i) {
 			cfg->avgFrameRate = vps->rates[0].avg_pic_rate;
-			cfg->constantFrameRate = vps->rates[0].constand_pic_rate_idc;
+			cfg->constantFrameRate = vps->rates[0].constant_pic_rate_idc;
 			cfg->numTemporalLayers = vps->max_sub_layers;
 		}
 		if (!ctx->analyze)
diff --git a/src/media_tools/av_parsers.c b/src/media_tools/av_parsers.c
index 552be943ec..f781cb6f31 100644
--- a/src/media_tools/av_parsers.c
+++ b/src/media_tools/av_parsers.c
@@ -8195,8 +8195,10 @@ static s32 gf_hevc_read_sps_bs_internal(GF_BitStream *bs, HEVCState *hevc, u8 la
 		sps->update_rep_format_flag = gf_bs_read_int_log(bs, 1, "update_rep_format_flag");
 		if (sps->update_rep_format_flag) {
 			sps->rep_format_idx = gf_bs_read_int_log(bs, 8, "rep_format_idx");
-		}
-		else {
+			if (sps->rep_format_idx>15) {
+				return -1;
+			}
+		} else {
 			sps->rep_format_idx = vps->rep_format_idx[layer_id];
 		}
 		sps->width = vps->rep_formats[sps->rep_format_idx].pic_width_luma_samples;