diff --git a/fftools/ffprobe.c b/fftools/ffprobe.c
index dfa7ff1b24..a853c70f56 100644
--- a/fftools/ffprobe.c
+++ b/fftools/ffprobe.c
@@ -2246,14 +2246,16 @@ static void print_dynamic_hdr_vivid(WriterContext *w, const AVDynamicHDRVivid *m
                 print_int("3Spline_enable_flag", tm_params->three_Spline_enable_flag);
                 if (tm_params->three_Spline_enable_flag) {
                     print_int("3Spline_num", tm_params->three_Spline_num);
-                    print_int("3Spline_TH_mode", tm_params->three_Spline_TH_mode);
 
                     for (int j = 0; j < tm_params->three_Spline_num; j++) {
-                        print_q("3Spline_TH_enable_MB", tm_params->three_Spline_TH_enable_MB, '/');
-                        print_q("3Spline_TH_enable", tm_params->three_Spline_TH_enable, '/');
-                        print_q("3Spline_TH_Delta1", tm_params->three_Spline_TH_Delta1, '/');
-                        print_q("3Spline_TH_Delta2", tm_params->three_Spline_TH_Delta2, '/');
-                        print_q("3Spline_enable_Strength", tm_params->three_Spline_enable_Strength, '/');
+                        print_int("3Spline_TH_mode", tm_params->three_Spline_TH_mode[j]);
+                        if (tm_params->three_Spline_TH_mode[j] == 0 || tm_params->three_Spline_TH_mode[j] == 2) {
+                            print_q("3Spline_TH_enable_MB", tm_params->three_Spline_TH_enable_MB[j], '/');
+                        }
+                        print_q("3Spline_TH_enable", tm_params->three_Spline_TH_enable[j], '/');
+                        print_q("3Spline_TH_Delta1", tm_params->three_Spline_TH_Delta1[j], '/');
+                        print_q("3Spline_TH_Delta2", tm_params->three_Spline_TH_Delta2[j], '/');
+                        print_q("3Spline_enable_Strength", tm_params->three_Spline_enable_Strength[j], '/');
                     }
                 }
             }
diff --git a/libavcodec/dynamic_hdr_vivid.c b/libavcodec/dynamic_hdr_vivid.c
index d689669dec..f7a41ed2d5 100644
--- a/libavcodec/dynamic_hdr_vivid.c
+++ b/libavcodec/dynamic_hdr_vivid.c
@@ -101,23 +101,21 @@ int ff_parse_itu_t_t35_to_dynamic_hdr_vivid(AVDynamicHDRVivid *s, const uint8_t
                             if (get_bits_left(gb) < 1 + tm_params->three_Spline_num * (2 + 12 + 28 + 1))
                                 return AVERROR_INVALIDDATA;
                             tm_params->three_Spline_num = get_bits(gb, 1) + 1;
+                            if (tm_params->three_Spline_num > FF_ARRAY_ELEMS(tm_params->three_Spline_TH_mode))
+                                return AVERROR_INVALIDDATA;
                             for (int j = 0; j < tm_params->three_Spline_num; j++) {
-                                tm_params->three_Spline_TH_mode = get_bits(gb, 2);
-                                if (tm_params->three_Spline_TH_mode == 0 || tm_params->three_Spline_TH_mode == 2) {
+                                tm_params->three_Spline_TH_mode[j] = get_bits(gb, 2);
+                                if (tm_params->three_Spline_TH_mode[j] == 0 || tm_params->three_Spline_TH_mode[j] == 2) {
                                     if (get_bits_left(gb) < 8)
                                         return AVERROR_INVALIDDATA;
-                                    tm_params->three_Spline_TH_enable_MB = (AVRational){get_bits(gb, 8),  255};
+                                    tm_params->three_Spline_TH_enable_MB[j] = (AVRational){get_bits(gb, 8),  255};
                                 }
-                                tm_params->three_Spline_TH_enable = (AVRational){get_bits(gb, 12),  4095};
-                                tm_params->three_Spline_TH_Delta1 = (AVRational){get_bits(gb, 10),  1023};
-                                tm_params->three_Spline_TH_Delta2 = (AVRational){get_bits(gb, 10),  1023};
-                                tm_params->three_Spline_enable_Strength = (AVRational){get_bits(gb,  8),  255};
+                                tm_params->three_Spline_TH_enable[j] = (AVRational){get_bits(gb, 12),  4095};
+                                tm_params->three_Spline_TH_Delta1[j] = (AVRational){get_bits(gb, 10),  1023};
+                                tm_params->three_Spline_TH_Delta2[j] = (AVRational){get_bits(gb, 10),  1023};
+                                tm_params->three_Spline_enable_Strength[j] = (AVRational){get_bits(gb,  8),  255};
                             }
-                        } else {
-                            tm_params->three_Spline_num     = 1;
-                            tm_params->three_Spline_TH_mode = 0;
                         }
-
                     }
                 }
             }
diff --git a/libavfilter/vf_showinfo.c b/libavfilter/vf_showinfo.c
index e55625b338..05829289a5 100644
--- a/libavfilter/vf_showinfo.c
+++ b/libavfilter/vf_showinfo.c
@@ -354,19 +354,20 @@ static void dump_dynamic_hdr_vivid(AVFilterContext *ctx, AVFrameSideData *sd)
                 av_log(ctx, AV_LOG_INFO, "3Spline_enable_flag[%d][%d]: %d, ",
                        w, i, tm_params->three_Spline_enable_flag);
                 if (tm_params->three_Spline_enable_flag) {
-                    av_log(ctx, AV_LOG_INFO, "3Spline_TH_mode[%d][%d]:  %d, ", w, i, tm_params->three_Spline_TH_mode);
-
                     for (int j = 0; j < tm_params->three_Spline_num; j++) {
-                        av_log(ctx, AV_LOG_INFO, "3Spline_TH_enable_MB[%d][%d][%d]: %.4f, ",
-                                w, i, j, av_q2d(tm_params->three_Spline_TH_enable_MB));
+                        av_log(ctx, AV_LOG_INFO, "3Spline_TH_mode[%d][%d]:  %d, ", w, i, tm_params->three_Spline_TH_mode[j]);
+                        if (tm_params->three_Spline_TH_mode[j] == 0 || tm_params->three_Spline_TH_mode[j] == 2) {
+                            av_log(ctx, AV_LOG_INFO, "3Spline_TH_enable_MB[%d][%d][%d]: %.4f, ",
+                                    w, i, j, av_q2d(tm_params->three_Spline_TH_enable_MB[j]));
+                        }
                         av_log(ctx, AV_LOG_INFO, "3Spline_TH_enable[%d][%d][%d]: %.4f, ",
-                                w, i, j, av_q2d(tm_params->three_Spline_TH_enable));
+                                w, i, j, av_q2d(tm_params->three_Spline_TH_enable[j]));
                         av_log(ctx, AV_LOG_INFO, "3Spline_TH_Delta1[%d][%d][%d]: %.4f, ",
-                                w, i, j, av_q2d(tm_params->three_Spline_TH_Delta1));
+                                w, i, j, av_q2d(tm_params->three_Spline_TH_Delta1[j]));
                         av_log(ctx, AV_LOG_INFO, "3Spline_TH_Delta2[%d][%d][%d]: %.4f, ",
-                                w, i, j, av_q2d(tm_params->three_Spline_TH_Delta2));
+                                w, i, j, av_q2d(tm_params->three_Spline_TH_Delta2[j]));
                         av_log(ctx, AV_LOG_INFO, "3Spline_enable_Strength[%d][%d][%d]: %.4f, ",
-                                w, i, j, av_q2d(tm_params->three_Spline_enable_Strength));
+                                w, i, j, av_q2d(tm_params->three_Spline_enable_Strength[j]));
                     }
                 }
             }
diff --git a/libavutil/hdr_dynamic_vivid_metadata.h b/libavutil/hdr_dynamic_vivid_metadata.h
index a34f83072c..4ceddc539d 100644
--- a/libavutil/hdr_dynamic_vivid_metadata.h
+++ b/libavutil/hdr_dynamic_vivid_metadata.h
@@ -126,42 +126,42 @@ typedef struct AVHDRVividColorToneMappingParams {
      * The mode of three Spline. the value shall be in the range
      * of 0 to 3, inclusive.
      */
-    int three_Spline_TH_mode;
+    int three_Spline_TH_mode[2];
 
     /**
      * three_Spline_TH_enable_MB is in the range of 0.0 to 1.0, inclusive
      * and in multiples of 1.0/255.
      *
      */
-    AVRational three_Spline_TH_enable_MB;
+    AVRational three_Spline_TH_enable_MB[2];
 
     /**
      * 3Spline_TH_enable of three Spline.
      * The value shall be in the range of 0.0 to 1.0, inclusive.
      * and in multiples of 1.0/4095.
      */
-    AVRational three_Spline_TH_enable;
+    AVRational three_Spline_TH_enable[2];
 
     /**
      * 3Spline_TH_Delta1 of three Spline.
      * The value shall be in the range of 0.0 to 0.25, inclusive,
      * and in multiples of 0.25/1023.
      */
-    AVRational three_Spline_TH_Delta1;
+    AVRational three_Spline_TH_Delta1[2];
 
     /**
      * 3Spline_TH_Delta2 of three Spline.
      * The value shall be in the range of 0.0 to 0.25, inclusive,
      * and in multiples of 0.25/1023.
      */
-    AVRational three_Spline_TH_Delta2;
+    AVRational three_Spline_TH_Delta2[2];
 
     /**
      * 3Spline_enable_Strength of three Spline.
      * The value shall be in the range of 0.0 to 1.0, inclusive,
      * and in multiples of 1.0/255.
      */
-    AVRational three_Spline_enable_Strength;
+    AVRational three_Spline_enable_Strength[2];
 } AVHDRVividColorToneMappingParams;
 
 
