diff --git a/doc/ISOIEC 13818-1.pdf b/doc/ISOIEC 13818-1.pdf
new file mode 100644
index 0000000..820bbd0
Binary files /dev/null and b/doc/ISOIEC 13818-1.pdf differ
diff --git a/src/JT1078.Hls.Test/TS_Package_Test.cs b/src/JT1078.Hls.Test/TS_Package_Test.cs
index 55716de..c559ca0 100644
--- a/src/JT1078.Hls.Test/TS_Package_Test.cs
+++ b/src/JT1078.Hls.Test/TS_Package_Test.cs
@@ -161,6 +161,35 @@ namespace JT1078.Hls.Test
                 fileStream?.Close();
                 fileStream?.Dispose();
             }
-        }        
+        }
+        [Fact]
+        public void PTSTest()
+        {
+            //pts
+            //31 00 09 08 97 
+
+            long ptsvalue = 132171;
+            var str = Convert.ToString(ptsvalue, 2).PadLeft(40, '0');
+            str = str.Insert(str.Length, "1");
+            str = str.Insert(str.Length - 16, "1");
+            str = str.Insert(str.Length - 32, "1");
+            str = str.Insert(str.Length - 36, "0011");
+            str = str.Substring(str.Length - 40, 40);
+            var pts = Convert.ToInt64(str, 2);
+        }
+        [Fact]
+        public void DTSTest1()
+        {
+            //dts
+            //11 00 07 D8 61 
+            long value = 126000;
+            var str = Convert.ToString(value, 2).PadLeft(40, '0');
+            str = str.Insert(str.Length, "1");
+            str = str.Insert(str.Length - 16, "1");
+            str = str.Insert(str.Length - 32, "1");
+            str = str.Insert(str.Length - 36, "0001");
+            str = str.Substring(str.Length - 40, 40);
+            var dts = Convert.ToInt64(str, 2);
+        }
     }
 }
diff --git a/src/JT1078.Hls.Test/TS_SDT_Package_Test.cs b/src/JT1078.Hls.Test/TS_SDT_Package_Test.cs
index 277e523..fd581ba 100644
--- a/src/JT1078.Hls.Test/TS_SDT_Package_Test.cs
+++ b/src/JT1078.Hls.Test/TS_SDT_Package_Test.cs
@@ -51,11 +51,7 @@ namespace JT1078.Hls.Test
             Assert.Equal("47 40 11 10 00 42 F0 25 00 01 C1 00 00 FF 01 FF 00 01 FC 80 14 48 12 01 06 46 46 6D 70 65 67 09 53 65 72 76 69 63 65 30 31 77 7C 43 CA FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF".Replace(" ", ""), patData);
 
         }
+ 
 
-        [Fact]
-        public void  Test() {
-            byte a = 0x01;
-            var b = (ushort)(a << 15);
-        }
     }
 }