组装测试fmp4盒子

src/JT1078.FMp4.Test/FMp4Box_Test.cs

@@ -6,6 +6,8 @@ using Xunit;
 using JT1078.Protocol.Extensions;
 using JT1078.FMp4.Enums;
 using JT1078.FMp4.Samples;
+using System.IO;
+using System.Linq;
 
 namespace JT1078.FMp4.Test
 {
@@ -233,6 +235,7 @@ namespace JT1078.FMp4.Test
         public void moov_udta_test()
         {
             //todo:moov->udta
+
         }
         /// <summary>
         /// 使用doc/video/fragmented_demo.mp4
@@ -266,17 +269,25 @@ namespace JT1078.FMp4.Test
             movieFragmentBox.TrackFragmentBox.TrackFragmentBaseMediaDecodeTimeBox = new TrackFragmentBaseMediaDecodeTimeBox();
             //todo:moof->trun
             movieFragmentBox.TrackFragmentBox.TrackRunBox = new TrackRunBox(0, 0x00000305);
-        }        
+        }
         /// <summary>
         /// 使用doc/video/fragmented_demo.mp4
         /// </summary>
         [Fact(DisplayName = "mdat")]
         public void mdat_test()
         {
-            //todo:mdat
             MediaDataBox mediaDataBox = new MediaDataBox();
-            
-        }        
+            var lines = File.ReadAllLines(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "H264", "fragmented_demo_mdat.txt"));
+            var buffers = lines.Where(w => !string.IsNullOrEmpty(w)).Select(s => s.ToHexBytes()).ToList();
+            List<byte> data = new List<byte>();
+            foreach (var buffer in buffers)
+            {
+                data = data.Concat(buffer).ToList();
+            }
+            //00 0E 3C 9C  Size
+            //6D 64 61 74  BoxType
+            Assert.Equal(0x000E3C9C-8, data.Count);
+        }  
         /// <summary>
         /// 使用doc/video/fragmented_demo.mp4
         /// </summary>

src/JT1078.FMp4.Test/JT1078.FMp4.Test.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>net5.0</TargetFramework>
@@ -22,5 +22,16 @@
   <ItemGroup>
     <ProjectReference Include="..\JT1078.FMp4\JT1078.FMp4.csproj" />
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="H264\" />
+    <None Include="..\..\doc\video\fragmented_demo_mdat.txt" Link="H264\fragmented_demo_mdat.txt">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <None Update="H264\fragmented_demo_mdat.txt">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
 
 </Project>

src/JT1078.FMp4/Boxs/MediaDataBox.cs

@@ -17,7 +17,12 @@ namespace JT1078.FMp4
         public MediaDataBox() : base("mdat")
         {
         }
-
+        /// <summary>
+        /// 过滤掉AUD/SPS/PPS NAL <br/>
+        /// 然后将其他NAL写入Data中 <br/>
+        /// Filter out AUD/SPS/PPS NAL units from your stream<br/>
+        /// Write you converted NAL units into the MDAT box<br/>
+        /// </summary>
         public byte[] Data { get; set; }
 
         public void ToBuffer(ref FMp4MessagePackWriter writer)

src/JT1078.FMp4/JT1078.FMp4.xml

@@ -298,6 +298,14 @@
             mdat
             </summary>
         </member>
+        <member name="P:JT1078.FMp4.MediaDataBox.Data">
+            <summary>
+            过滤掉AUD/SPS/PPS NAL <br/>
+            然后将其他NAL写入Data中 <br/>
+            Filter out AUD/SPS/PPS NAL units from your stream<br/>
+            Write you converted NAL units into the MDAT box<br/>
+            </summary>
+        </member>
         <member name="T:JT1078.FMp4.MediaHeaderBox">
             <summary>
             mdhd