diff --git a/src/JT1078.Protocol.Test/Extensions/JT1078PackageExtensionsTest.cs b/src/JT1078.Protocol.Test/Extensions/JT1078PackageExtensionsTest.cs
new file mode 100644
index 0000000..4d1f2c5
--- /dev/null
+++ b/src/JT1078.Protocol.Test/Extensions/JT1078PackageExtensionsTest.cs
@@ -0,0 +1,39 @@
+using JT1078.Protocol.Extensions;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xunit;
+
+namespace JT1078.Protocol.Test.Extensions
+{
+    public class JT1078PackageExtensionsTest
+    {
+        [Fact]
+        public void Test()
+        {
+            var lines = File.ReadAllLines(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "JT1078.txt"));
+            JT1078Package merge = null;
+            int mergeBodyLength = 0;
+            foreach (var line in lines)
+            {
+                var data = line.Split(',');
+                var bytes = data[5].ToHexBytes();
+                JT1078Package package = JT1078Serializer.Deserialize(bytes);
+                mergeBodyLength += package.DataBodyLength;
+                merge = JT1078Serializer.Merge(package);
+            }
+            var packages = merge.Bodies.ConvertVideo(merge.SIM, merge.LogicChannelNumber, merge.Label2.PT, merge.Label3.DataType, 
+                merge.Timestamp, merge.LastFrameInterval, merge.LastFrameInterval);
+            for(int i=0;i< packages.Count;i++)
+            {
+                var data = lines[i].Split(',');
+                var bytes1 = data[5].ToHexBytes();
+                var bytes2 = JT1078Serializer.Serialize(packages[i]);
+                Assert.Equal(bytes1, bytes2);
+            }
+        }
+    }
+}
diff --git a/src/JT1078.Protocol/Extensions/JT1078PackageExtensions.cs b/src/JT1078.Protocol/Extensions/JT1078PackageExtensions.cs
new file mode 100644
index 0000000..6ec4a76
--- /dev/null
+++ b/src/JT1078.Protocol/Extensions/JT1078PackageExtensions.cs
@@ -0,0 +1,289 @@
+using JT1078.Protocol.Enums;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace JT1078.Protocol
+{
+    /// <summary>
+    /// 1078扩展类
+    /// </summary>
+    public static class JT1078PackageExtensions
+    {
+        /// <summary>
+        /// 将音频数据包转换到1078包
+        /// </summary>
+        /// <param name="value"></param>
+        /// <param name="sim"></param>
+        /// <param name="channelNo"></param>
+        /// <param name="jT1078AVType"></param>
+        /// <param name="timestamp"></param>
+        /// <returns></returns>
+        public static List<JT1078Package> ConvertAudio(this byte[] value,string sim,int channelNo, JT1078AVType jT1078AVType, ulong timestamp)
+        {
+            List<JT1078Package> jT1078Packages = new List<JT1078Package>();
+            var buffer=Slice(value);
+            if (buffer.Count == 1)
+            {
+                JT1078Package jT1078Package = new JT1078Package();
+                jT1078Package.SIM = sim;
+                jT1078Package.LogicChannelNumber = (byte)channelNo;
+                jT1078Package.SN = SeqUtil.Increment(sim);
+                jT1078Package.Timestamp = timestamp;
+                jT1078Package.Label2 = new JT1078Label2(1, jT1078AVType);
+                jT1078Package.Label3 = new JT1078Label3(JT1078DataType.音频帧, JT1078SubPackageType.原子包_不可被拆分);
+                jT1078Package.Bodies = buffer[0];
+                jT1078Packages.Add(jT1078Package);
+            }
+            else if(buffer.Count == 2)
+            {
+                JT1078Package jT1078Package1 = new JT1078Package();
+                jT1078Package1.SIM = sim;
+                jT1078Package1.LogicChannelNumber = (byte)channelNo;
+                jT1078Package1.SN = SeqUtil.Increment(sim);
+                jT1078Package1.Timestamp = timestamp;
+                jT1078Package1.Label2 = new JT1078Label2(0, jT1078AVType);
+                jT1078Package1.Label3 = new JT1078Label3(JT1078DataType.音频帧, JT1078SubPackageType.分包处理时的第一个包);
+                jT1078Package1.Bodies = buffer[0];
+                jT1078Packages.Add(jT1078Package1);
+                JT1078Package jT1078Package2= new JT1078Package();
+                jT1078Package2.SIM = sim;
+                jT1078Package2.LogicChannelNumber = (byte)channelNo;
+                jT1078Package2.SN = SeqUtil.Increment(sim);
+                jT1078Package2.Timestamp = timestamp;
+                jT1078Package2.Label2 = new JT1078Label2(1, jT1078AVType);
+                jT1078Package2.Label3 = new JT1078Label3(JT1078DataType.音频帧, JT1078SubPackageType.分包处理时的最后一个包);
+                jT1078Package2.Bodies = buffer[1];
+                jT1078Packages.Add(jT1078Package2);
+            }
+            else
+            {
+                for (var i = 0; i < buffer.Count; i++)
+                {
+                    JT1078Package jT1078Package = new JT1078Package();
+                    jT1078Package.SIM = sim;
+                    jT1078Package.LogicChannelNumber = (byte)channelNo;
+                    jT1078Package.SN = SeqUtil.Increment(sim);
+                    jT1078Package.Timestamp = timestamp;
+                    jT1078Package.Label2 = new JT1078Label2(0, jT1078AVType);
+                    jT1078Package.Label3 = new JT1078Label3(JT1078DataType.音频帧);
+                    jT1078Package.Bodies = buffer[i];
+                    if (i == 0)
+                    {
+                        jT1078Package.Label3.SubpackageType = JT1078SubPackageType.分包处理时的第一个包;
+                    }
+                    else if (i == (buffer.Count - 1))
+                    {
+                        jT1078Package.Label2.M = 1;
+                        jT1078Package.Label3.SubpackageType = JT1078SubPackageType.分包处理时的最后一个包;
+                    }
+                    else
+                    {
+                        jT1078Package.Label3.SubpackageType = JT1078SubPackageType.分包处理时的中间包;
+                    }
+                    jT1078Packages.Add(jT1078Package);
+                }
+            }
+            return jT1078Packages;
+        }
+
+        /// <summary>
+        /// 将视频数据包转换到1078包
+        /// </summary>
+        /// <param name="value"></param>
+        /// <param name="sim"></param>
+        /// <param name="channelNo"></param>
+        /// <param name="jT1078AVType"></param>
+        /// <param name="jT1078DataType"></param>
+        /// <param name="timestamp"></param>
+        /// <param name="lastIFrameInterval"></param>
+        /// <param name="lastFrameInterval"></param>
+        /// <returns></returns>
+        public static List<JT1078Package> ConvertVideo(this byte[] value, string sim, 
+            int channelNo,
+            JT1078AVType jT1078AVType,
+            JT1078DataType jT1078DataType, 
+            ulong timestamp,
+            int lastIFrameInterval,
+            int lastFrameInterval)
+        {
+            List<JT1078Package> jT1078Packages = new List<JT1078Package>();
+            var buffer = Slice(value);
+            if (buffer.Count == 1)
+            {
+                JT1078Package jT1078Package = new JT1078Package();
+                jT1078Package.SIM = sim;
+                jT1078Package.LogicChannelNumber = (byte)channelNo;
+                jT1078Package.SN = SeqUtil.Increment(sim);
+                jT1078Package.Timestamp = timestamp;
+                jT1078Package.LastIFrameInterval = (ushort)lastIFrameInterval;
+                jT1078Package.LastFrameInterval = (ushort)lastFrameInterval;
+                jT1078Package.Label2 = new JT1078Label2(1, jT1078AVType);
+                jT1078Package.Label3 = new JT1078Label3(jT1078DataType, JT1078SubPackageType.原子包_不可被拆分);
+                jT1078Package.Bodies = buffer[0];
+                jT1078Packages.Add(jT1078Package);
+            }
+            else if (buffer.Count == 2)
+            {
+                JT1078Package jT1078Package1 = new JT1078Package();
+                jT1078Package1.SIM = sim;
+                jT1078Package1.LogicChannelNumber = (byte)channelNo;
+                jT1078Package1.SN = SeqUtil.Increment(sim);
+                jT1078Package1.Timestamp = timestamp;
+                jT1078Package1.LastIFrameInterval = (ushort)lastIFrameInterval;
+                jT1078Package1.LastFrameInterval = (ushort)lastFrameInterval;
+                jT1078Package1.Label2 = new JT1078Label2(0, jT1078AVType);
+                jT1078Package1.Label3 = new JT1078Label3(jT1078DataType, JT1078SubPackageType.分包处理时的第一个包);
+                jT1078Package1.Bodies = buffer[0];
+                jT1078Packages.Add(jT1078Package1);
+                JT1078Package jT1078Package2 = new JT1078Package();
+                jT1078Package2.SIM = sim;
+                jT1078Package2.LogicChannelNumber = (byte)channelNo;
+                jT1078Package2.SN = SeqUtil.Increment(sim);
+                jT1078Package2.Timestamp = timestamp;
+                jT1078Package2.LastIFrameInterval = (ushort)lastIFrameInterval;
+                jT1078Package2.LastFrameInterval = (ushort)lastFrameInterval;
+                jT1078Package2.Label2 = new JT1078Label2(1, jT1078AVType);
+                jT1078Package2.Label3 = new JT1078Label3(jT1078DataType, JT1078SubPackageType.分包处理时的最后一个包);
+                jT1078Package2.Bodies = buffer[1];
+                jT1078Packages.Add(jT1078Package2);
+            }
+            else
+            {
+                for (var i = 0; i < buffer.Count; i++)
+                {
+                    JT1078Package jT1078Package = new JT1078Package();
+                    jT1078Package.SIM = sim;
+                    jT1078Package.LogicChannelNumber = (byte)channelNo;
+                    jT1078Package.SN = SeqUtil.Increment(sim);
+                    jT1078Package.Timestamp = timestamp;
+                    jT1078Package.LastIFrameInterval = (ushort)lastIFrameInterval;
+                    jT1078Package.LastFrameInterval = (ushort)lastFrameInterval;
+                    jT1078Package.Label2 = new JT1078Label2(0, jT1078AVType);
+                    jT1078Package.Label3 = new JT1078Label3(jT1078DataType);
+                    jT1078Package.Bodies = buffer[i];
+                    if (i == 0)
+                    {
+                        jT1078Package.Label3.SubpackageType = JT1078SubPackageType.分包处理时的第一个包;
+                    }
+                    else if (i == (buffer.Count - 1))
+                    {
+                        jT1078Package.Label2.M = 1;
+                        jT1078Package.Label3.SubpackageType = JT1078SubPackageType.分包处理时的最后一个包;
+                    }
+                    else
+                    {
+                        jT1078Package.Label3.SubpackageType = JT1078SubPackageType.分包处理时的中间包;
+                    }
+                    jT1078Packages.Add(jT1078Package);
+                }
+            }
+            return jT1078Packages;
+        }
+
+        /// <summary>
+        /// 将透传数据包转换到1078包
+        /// </summary>
+        /// <param name="value"></param>
+        /// <param name="sim"></param>
+        /// <param name="channelNo"></param>
+        /// <returns></returns>
+        public static List<JT1078Package> ConvertPassthrough(this byte[] value, string sim, int channelNo)
+        {
+            List<JT1078Package> jT1078Packages = new List<JT1078Package>();
+            var buffer = Slice(value);
+            if (buffer.Count == 1)
+            {
+                JT1078Package jT1078Package = new JT1078Package();
+                jT1078Package.SIM = sim;
+                jT1078Package.LogicChannelNumber = (byte)channelNo;
+                jT1078Package.SN = SeqUtil.Increment(sim);
+                jT1078Package.Label2 = new JT1078Label2(1,  JT1078AVType.透传);
+                jT1078Package.Label3 = new JT1078Label3(JT1078DataType.透传数据, JT1078SubPackageType.原子包_不可被拆分);
+                jT1078Package.Bodies = buffer[0];
+                jT1078Packages.Add(jT1078Package);
+            }
+            else if (buffer.Count == 2)
+            {
+                JT1078Package jT1078Package1 = new JT1078Package();
+                jT1078Package1.SIM = sim;
+                jT1078Package1.LogicChannelNumber = (byte)channelNo;
+                jT1078Package1.SN = SeqUtil.Increment(sim);
+                jT1078Package1.Label2 = new JT1078Label2(0, JT1078AVType.透传);
+                jT1078Package1.Label3 = new JT1078Label3(JT1078DataType.透传数据, JT1078SubPackageType.分包处理时的第一个包);
+                jT1078Package1.Bodies = buffer[0];
+                jT1078Packages.Add(jT1078Package1);
+                JT1078Package jT1078Package2 = new JT1078Package();
+                jT1078Package2.SIM = sim;
+                jT1078Package2.LogicChannelNumber = (byte)channelNo;
+                jT1078Package2.SN = SeqUtil.Increment(sim);
+                jT1078Package2.Label2 = new JT1078Label2(1, JT1078AVType.透传);
+                jT1078Package2.Label3 = new JT1078Label3(JT1078DataType.透传数据, JT1078SubPackageType.分包处理时的最后一个包);
+                jT1078Package2.Bodies = buffer[1];
+                jT1078Packages.Add(jT1078Package2);
+            }
+            else
+            {
+                for (var i = 0; i < buffer.Count; i++)
+                {
+                    JT1078Package jT1078Package = new JT1078Package();
+                    jT1078Package.SIM = sim;
+                    jT1078Package.LogicChannelNumber = (byte)channelNo;
+                    jT1078Package.SN = SeqUtil.Increment(sim);
+                    jT1078Package.Label2 = new JT1078Label2(0, JT1078AVType.透传);
+                    jT1078Package.Label3 = new JT1078Label3(JT1078DataType.透传数据);
+                    jT1078Package.Bodies = buffer[i];
+                    if (i == 0)
+                    {
+                        jT1078Package.Label3.SubpackageType = JT1078SubPackageType.分包处理时的第一个包;
+                    }
+                    else if (i == (buffer.Count - 1))
+                    {
+                        jT1078Package.Label2.M = 1;
+                        jT1078Package.Label3.SubpackageType = JT1078SubPackageType.分包处理时的最后一个包;
+                    }
+                    else
+                    {
+                        jT1078Package.Label3.SubpackageType = JT1078SubPackageType.分包处理时的中间包;
+                    }
+                    jT1078Packages.Add(jT1078Package);
+                }
+            }
+            return jT1078Packages;
+        }
+
+        /// <summary>
+        /// 切分数据包
+        /// </summary>
+        /// <param name="value"></param>
+        /// <returns></returns>
+        public static List<byte[]> Slice(byte[] value)
+        {
+            const int MAXCONTENTLENGTH = 950;
+            if (value.Length <= MAXCONTENTLENGTH)
+            {
+                return new List<byte[]>() { value };
+            }
+            List<byte[]> s = new List<byte[]>();
+            var quotient = value.Length / MAXCONTENTLENGTH;
+            var remainder = value.Length % MAXCONTENTLENGTH;
+            if (remainder != 0)
+            {
+                quotient = quotient + 1;
+            }
+            ReadOnlySpan<byte> valueReadOnlySpan = value;
+            for (int i = 1; i <= quotient; i++)
+            {
+                if (i == quotient)
+                {
+                    s.Add(valueReadOnlySpan.Slice((i - 1) * MAXCONTENTLENGTH).ToArray());
+                }
+                else
+                {
+                    s.Add(valueReadOnlySpan.Slice((i - 1) * MAXCONTENTLENGTH, MAXCONTENTLENGTH).ToArray());
+                }
+            }
+            return s;
+        }
+    }
+}
diff --git a/src/JT1078.Protocol/JT1078.Protocol.xml b/src/JT1078.Protocol/JT1078.Protocol.xml
index 96d7779..b73d231 100644
--- a/src/JT1078.Protocol/JT1078.Protocol.xml
+++ b/src/JT1078.Protocol/JT1078.Protocol.xml
@@ -67,6 +67,52 @@
             <param name="separator"></param>
             <returns></returns>
         </member>
+        <member name="T:JT1078.Protocol.JT1078PackageExtensions">
+            <summary>
+            1078扩展类
+            </summary>
+        </member>
+        <member name="M:JT1078.Protocol.JT1078PackageExtensions.ConvertAudio(System.Byte[],System.String,System.Int32,JT1078.Protocol.Enums.JT1078AVType,System.UInt64)">
+            <summary>
+            将音频数据包转换到1078包
+            </summary>
+            <param name="value"></param>
+            <param name="sim"></param>
+            <param name="channelNo"></param>
+            <param name="jT1078AVType"></param>
+            <param name="timestamp"></param>
+            <returns></returns>
+        </member>
+        <member name="M:JT1078.Protocol.JT1078PackageExtensions.ConvertVideo(System.Byte[],System.String,System.Int32,JT1078.Protocol.Enums.JT1078AVType,JT1078.Protocol.Enums.JT1078DataType,System.UInt64,System.Int32,System.Int32)">
+            <summary>
+            将视频数据包转换到1078包
+            </summary>
+            <param name="value"></param>
+            <param name="sim"></param>
+            <param name="channelNo"></param>
+            <param name="jT1078AVType"></param>
+            <param name="jT1078DataType"></param>
+            <param name="timestamp"></param>
+            <param name="lastIFrameInterval"></param>
+            <param name="lastFrameInterval"></param>
+            <returns></returns>
+        </member>
+        <member name="M:JT1078.Protocol.JT1078PackageExtensions.ConvertPassthrough(System.Byte[],System.String,System.Int32)">
+            <summary>
+            将透传数据包转换到1078包
+            </summary>
+            <param name="value"></param>
+            <param name="sim"></param>
+            <param name="channelNo"></param>
+            <returns></returns>
+        </member>
+        <member name="M:JT1078.Protocol.JT1078PackageExtensions.Slice(System.Byte[])">
+            <summary>
+            切分数据包
+            </summary>
+            <param name="value"></param>
+            <returns></returns>
+        </member>
         <member name="M:JT1078.Protocol.H264.H264Decoder.ParseNALU(JT1078.Protocol.JT1078Package,System.String)">
             <summary>
             
diff --git a/src/JT1078.Protocol/JT1078Label3.cs b/src/JT1078.Protocol/JT1078Label3.cs
index 79b5b21..dbfdf31 100644
--- a/src/JT1078.Protocol/JT1078Label3.cs
+++ b/src/JT1078.Protocol/JT1078Label3.cs
@@ -21,6 +21,10 @@ namespace JT1078.Protocol
             DataType = dataType;
             SubpackageType = subpackageType;
         }
+        public JT1078Label3(JT1078DataType dataType)
+        {
+            DataType = dataType;
+        }
         /// <summary>
         /// 数据类型
         /// </summary>
diff --git a/src/JT1078.Protocol/JT1078Serializer.cs b/src/JT1078.Protocol/JT1078Serializer.cs
index a5d8e54..819d727 100644
--- a/src/JT1078.Protocol/JT1078Serializer.cs
+++ b/src/JT1078.Protocol/JT1078Serializer.cs
@@ -46,6 +46,7 @@ namespace JT1078.Protocol
                 JT1078ArrayPool.Return(buffer);
             }
         }
+
         public static JT1078Package Deserialize(ReadOnlySpan<byte> bytes)
         {
             JT1078Package jT1078Package = new JT1078Package();
diff --git a/src/JT1078.Protocol/SeqUtil.cs b/src/JT1078.Protocol/SeqUtil.cs
new file mode 100644
index 0000000..229cf3b
--- /dev/null
+++ b/src/JT1078.Protocol/SeqUtil.cs
@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Text;
+
+namespace JT1078.Protocol
+{
+    public static class SeqUtil
+    {
+        static readonly ConcurrentDictionary<string, int> counterDict;
+        static SeqUtil()
+        {
+            counterDict = new ConcurrentDictionary<string, int>(StringComparer.OrdinalIgnoreCase);
+        }
+        public static ushort Increment(string terminalPhoneNo)
+        {
+            return (ushort)counterDict.AddOrUpdate(terminalPhoneNo, 0, (id, count) => count + 1);
+        }
+        public static ushort Reset(string terminalPhoneNo)
+        {
+            return (ushort)counterDict.AddOrUpdate(terminalPhoneNo, 0, (id, count) => 0);
+        }
+    }
+}
diff --git a/src/JT808.Protocol.Extensions.JT1078/JT808.Protocol.Extensions.JT1078.csproj b/src/JT808.Protocol.Extensions.JT1078/JT808.Protocol.Extensions.JT1078.csproj
index 1586341..adc1152 100644
--- a/src/JT808.Protocol.Extensions.JT1078/JT808.Protocol.Extensions.JT1078.csproj
+++ b/src/JT808.Protocol.Extensions.JT1078/JT808.Protocol.Extensions.JT1078.csproj
@@ -15,7 +15,7 @@
     <licenseUrl>https://github.com/SmallChi/JT1078/blob/master/LICENSE</licenseUrl>
     <license>https://github.com/SmallChi/JT1078/blob/master/LICENSE</license>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
-    <Version>2.3.4</Version>
+    <Version>2.3.5</Version>
     <PackageLicenseFile>LICENSE</PackageLicenseFile>
     <DocumentationFile>JT808.Protocol.Extensions.JT1078.xml</DocumentationFile>
   </PropertyGroup>
@@ -28,7 +28,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="JT808" Version="2.3.4" />
+    <PackageReference Include="JT808" Version="2.3.6" />
   </ItemGroup>
 
 
diff --git a/src/JT808.Protocol.Extensions.JT1078/MessageBody/JT808_0x0200_0x14.cs b/src/JT808.Protocol.Extensions.JT1078/MessageBody/JT808_0x0200_0x14.cs
index c0e7289..b06c751 100644
--- a/src/JT808.Protocol.Extensions.JT1078/MessageBody/JT808_0x0200_0x14.cs
+++ b/src/JT808.Protocol.Extensions.JT1078/MessageBody/JT808_0x0200_0x14.cs
@@ -34,7 +34,7 @@ namespace JT808.Protocol.Extensions.JT1078.MessageBody
             writer.WriteNumber($"[{value.AttachInfoLength.ReadNumber()}]附加信息长度", value.AttachInfoLength);
             value.VideoRelateAlarm = reader.ReadUInt32();
             writer.WriteNumber($"[{value.VideoRelateAlarm.ReadNumber()}]视频相关报警", value.VideoRelateAlarm);
-            var videoRelateAlarmFlags = JT808EnumExtensions.GetEnumTypes<VideoRelateAlarmType>((int)value.VideoRelateAlarm, 32);
+            var videoRelateAlarmFlags = JT808EnumExtensions.GetEnumTypes<VideoRelateAlarmType>(value.VideoRelateAlarm, 32);
             if (videoRelateAlarmFlags.Any())
             {
                 writer.WriteStartArray("视频报警集合");