Integrated MediaInfo wrapper to be able to properly handle Unicode on Linux.

2025-10-31 00:07:55 +02:00 · 2015-05-12 23:58:46 +02:00
parent 96578ca59b
commit 5cd2d71e6f
9 changed files with 351 additions and 34 deletions
--- a/build.ps1
+++ b/build.ps1
@@ -114,8 +114,8 @@ Function PackageMono()
    get-childitem $outputFolderMono -File -Filter sqlite3.* -Recurse | foreach ($_) {remove-item $_.fullname}
    get-childitem $outputFolderMono -File -Filter MediaInfo.* -Recurse | foreach ($_) {remove-item $_.fullname}

-    Write-Host "Adding MediaInfoDotNet.dll.config (for dllmap)"
-    Copy-Item "$sourceFolder\MediaInfoDotNet.dll.config" $outputFolderMono
+    Write-Host "Adding NzbDrone.Core.dll.config (for dllmap)"
+    Copy-Item "$sourceFolder\NzbDrone.Core\NzbDrone.Core.dll.config" $outputFolderMono

    Write-Host Renaming NzbDrone.Console.exe to NzbDrone.exe
    Get-ChildItem $outputFolderMono -File -Filter "NzbDrone.exe*" -Recurse | foreach ($_) {remove-item $_.fullname}
@@ -212,8 +212,8 @@ Function PackageTests()

    CleanFolder $testPackageFolder $true

-    Write-Host "Adding MediaInfoDotNet.dll.config (for dllmap)"
-    Copy-Item "$sourceFolder\MediaInfoDotNet.dll.config" -Destination $testPackageFolder -Force
+    Write-Host "Adding NzbDrone.Core.dll.config (for dllmap)"
+    Copy-Item "$sourceFolder\NzbDrone.Core\NzbDrone.Core.dll.config" -Destination $testPackageFolder -Force

    Write-Host "##teamcity[progressFinish 'Creating Test Package']"
 }
--- a/src/MediaInfoDotNet.dll.config
+++ b/src/MediaInfoDotNet.dll.config
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<configuration>
-    <dllmap os="osx" dll="MediaInfo.dll" target="libmediainfo.0.dylib"/>
-    <dllmap os="linux" dll="MediaInfo.dll" target="libmediainfo.so.0" />
-    <dllmap os="freebsd" dll="MediaInfo.dll" target="libmediainfo.so.0" />
-    <dllmap os="solaris" dll="MediaInfo.dll" target="libmediainfo.so.0.0.0" />
-</configuration>
--- a/src/NzbDrone.Core.Test/MediaFiles/MediaInfo/VideoFileInfoReaderFixture.cs
+++ b/src/NzbDrone.Core.Test/MediaFiles/MediaInfo/VideoFileInfoReaderFixture.cs
@@ -19,6 +19,10 @@ namespace NzbDrone.Core.Test.MediaFiles.MediaInfo
            Mocker.GetMock<IDiskProvider>()
                  .Setup(s => s.FileExists(It.IsAny<string>()))
                  .Returns(true);
+
+            Mocker.GetMock<IDiskProvider>()
+                  .Setup(s => s.OpenReadStream(It.IsAny<string>()))
+                  .Returns<string>(s => new FileStream(s, FileMode.Open, FileAccess.Read));
        }

        [Test]
@@ -56,7 +60,6 @@ namespace NzbDrone.Core.Test.MediaFiles.MediaInfo
        }

        [Test]
-        [Ignore]
        public void get_info_unicode()
        {
            var srcPath = Path.Combine(Directory.GetCurrentDirectory(), "Files", "Media", "H264_sample.mp4");
--- a/src/NzbDrone.Core/HealthCheck/Checks/MediaInfoDllCheck.cs
+++ b/src/NzbDrone.Core/HealthCheck/Checks/MediaInfoDllCheck.cs
@@ -1,6 +1,6 @@
 using System;
 using System.Runtime.CompilerServices;
-using MediaInfoLib;
+using NzbDrone.Core.MediaFiles.MediaInfo;

 namespace NzbDrone.Core.HealthCheck.Checks
 {
--- a/src/NzbDrone.Core/MediaFiles/MediaInfo/MediaInfoLib.cs
+++ b/src/NzbDrone.Core/MediaFiles/MediaInfo/MediaInfoLib.cs
@@ -0,0 +1,328 @@
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Text;
+using NzbDrone.Common.EnvironmentInfo;
+
+namespace NzbDrone.Core.MediaFiles.MediaInfo
+{
+    public enum StreamKind
+    {
+        General,
+        Video,
+        Audio,
+        Text,
+        Other,
+        Image,
+        Menu,
+    }
+
+    public enum InfoKind
+    {
+        Name,
+        Text,
+        Measure,
+        Options,
+        NameText,
+        MeasureText,
+        Info,
+        HowTo
+    }
+
+    public enum InfoOptions
+    {
+        ShowInInform,
+        Support,
+        ShowInSupported,
+        TypeOfValue
+    }
+
+    public enum InfoFileOptions
+    {
+        FileOption_Nothing = 0x00,
+        FileOption_NoRecursive = 0x01,
+        FileOption_CloseAll = 0x02,
+        FileOption_Max = 0x04
+    };
+
+
+    public class MediaInfo : IDisposable
+    {
+        private IntPtr _handle;
+
+        public bool MustUseAnsi { get; set; }
+        public Encoding Encoding { get; set; }
+
+        public MediaInfo()
+        {
+            _handle = MediaInfo_New();
+
+            InitializeEncoding();
+        }
+
+        ~MediaInfo()
+        {
+            MediaInfo_Delete(_handle);
+        }
+
+        public void Dispose()
+        {
+            MediaInfo_Delete(_handle);
+            GC.SuppressFinalize(this);
+        }
+
+        private void InitializeEncoding()
+        {
+            if (Environment.OSVersion.ToString().IndexOf("Windows") != -1)
+            {
+                // Windows guaranteed UCS-2
+                MustUseAnsi = false;
+                Encoding = Encoding.Unicode;
+            }
+            else
+            {
+                // Linux normally UCS-4. As fallback we try UCS-2 and plain Ansi.
+                MustUseAnsi = false;
+                Encoding = Encoding.UTF32;
+
+                if (Option("Info_Version", "").StartsWith("MediaInfoLib"))
+                {
+                    return;
+                }
+
+                Encoding = Encoding.Unicode;
+
+                if (Option("Info_Version", "").StartsWith("MediaInfoLib"))
+                {
+                    return;
+                }
+
+                MustUseAnsi = true;
+                Encoding = Encoding.Default;
+
+                if (Option("Info_Version", "").StartsWith("MediaInfoLib"))
+                {
+                    return;
+                }
+
+                throw new NotSupportedException("Unsupported MediaInfoLib encoding");
+            }
+        }
+
+        private IntPtr MakeStringParameter(string value)
+        {
+            var buffer = Encoding.GetBytes(value);
+
+            Array.Resize(ref buffer, buffer.Length + 4);
+
+            var buf = Marshal.AllocHGlobal(buffer.Length);
+            Marshal.Copy(buffer, 0, buf, buffer.Length);
+
+            return buf;
+        }
+
+        private string MakeStringResult(IntPtr value)
+        {
+            if (Encoding == Encoding.Unicode)
+            {
+                return Marshal.PtrToStringUni(value);
+            }
+            else if (Encoding == Encoding.UTF32)
+            {
+                int i = 0;
+                for (; i < 1024; i += 4)
+                {
+                    var data = Marshal.ReadInt32(value, i);
+                    if (data == 0)
+                    {
+                        break;
+                    }
+                }
+
+                var buffer = new byte[i];
+                Marshal.Copy(value, buffer, 0, i);
+
+                return Encoding.GetString(buffer, 0, i);
+            }
+            else
+            {
+                return Marshal.PtrToStringAnsi(value);
+            }
+        }
+
+        public int Open(string fileName)
+        {
+            var pFileName = MakeStringParameter(fileName);
+            try
+            {
+                if (MustUseAnsi)
+                {
+                    return (int)MediaInfoA_Open(_handle, pFileName);
+                }
+                else
+                {
+                    return (int)MediaInfo_Open(_handle, pFileName);
+                }
+            }
+            finally
+            {
+                Marshal.FreeHGlobal(pFileName);
+            }
+        }
+
+        public int Open(Stream stream)
+        {
+            var buffer = new byte[64 * 1024];
+
+            var isValid = (int)MediaInfo_Open_Buffer_Init(_handle, stream.Length, 0);
+            if (isValid == 1)
+            {
+                int bufferRead;
+
+                do
+                {
+                    bufferRead = stream.Read(buffer, 0, buffer.Length);
+
+                    if (MediaInfo_Open_Buffer_Continue(_handle, buffer, (IntPtr)bufferRead) == (IntPtr)0)
+                    {
+                        break;
+                    }
+
+                    var seekPos = MediaInfo_Open_Buffer_Continue_GoTo_Get(_handle);
+                    if (seekPos != -1)
+                    {
+                        seekPos = stream.Seek(seekPos, SeekOrigin.Begin);
+                        MediaInfo_Open_Buffer_Init(_handle, stream.Length, seekPos);
+                    }
+                } while (bufferRead > 0);
+
+                MediaInfo_Open_Buffer_Finalize(_handle);
+            }
+
+            return isValid;
+        }
+
+        public void Close()
+        {
+            MediaInfo_Close(_handle);
+        }
+
+        public string Get(StreamKind streamKind, int streamNumber, string parameter, InfoKind infoKind = InfoKind.Text, InfoKind searchKind = InfoKind.Name)
+        {
+            var pParameter = MakeStringParameter(parameter);
+            try
+            {
+                if (MustUseAnsi)
+                {
+                    return MakeStringResult(MediaInfoA_Get(_handle, (IntPtr)streamKind, (IntPtr)streamNumber, pParameter, (IntPtr)infoKind, (IntPtr)searchKind));
+                }
+                else
+                {
+                    return MakeStringResult(MediaInfo_Get(_handle, (IntPtr)streamKind, (IntPtr)streamNumber, pParameter, (IntPtr)infoKind, (IntPtr)searchKind));
+                }
+            }
+            finally
+            {
+                Marshal.FreeHGlobal(pParameter);
+            }
+        }
+
+        public string Get(StreamKind streamKind, int streamNumber, int parameter, InfoKind infoKind)
+        {
+            if (MustUseAnsi)
+            {
+                return MakeStringResult(MediaInfoA_GetI(_handle, (IntPtr)streamKind, (IntPtr)streamNumber, (IntPtr)parameter, (IntPtr)infoKind));
+            }
+            else
+            {
+                return MakeStringResult(MediaInfo_GetI(_handle, (IntPtr)streamKind, (IntPtr)streamNumber, (IntPtr)parameter, (IntPtr)infoKind));
+            }
+        }
+
+        public String Option(String option, String value)
+        {
+            var pOption = MakeStringParameter(option);
+            var pValue = MakeStringParameter(value);
+            try
+            {
+                if (MustUseAnsi)
+                {
+                    return MakeStringResult(MediaInfoA_Option(_handle, pOption, pValue));
+                }
+                else
+                {
+                    return MakeStringResult(MediaInfo_Option(_handle, pOption, pValue));
+                }
+            }
+            finally
+            {
+                Marshal.FreeHGlobal(pOption);
+                Marshal.FreeHGlobal(pValue);
+            }
+        }
+
+        public int State_Get()
+        {
+            return (int)MediaInfo_State_Get(_handle);
+        }
+
+        public int Count_Get(StreamKind streamKind, int streamNumber = -1)
+        {
+            return (int)MediaInfo_Count_Get(_handle, (IntPtr)streamKind, (IntPtr)streamNumber);
+        }
+
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfo_New();
+        [DllImport("MediaInfo.dll")]
+        private static extern void MediaInfo_Delete(IntPtr handle);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfo_Open(IntPtr handle, IntPtr fileName);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfo_Open_Buffer_Init(IntPtr handle, Int64 fileSize, Int64 fileOffset);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfo_Open_Buffer_Continue(IntPtr handle, byte[] buffer, IntPtr bufferSize);
+        [DllImport("MediaInfo.dll")]
+        private static extern Int64 MediaInfo_Open_Buffer_Continue_GoTo_Get(IntPtr handle);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfo_Open_Buffer_Finalize(IntPtr handle);
+        [DllImport("MediaInfo.dll")]
+        private static extern void MediaInfo_Close(IntPtr handle);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfo_GetI(IntPtr handle, IntPtr streamKind, IntPtr streamNumber, IntPtr parameter, IntPtr infoKind);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfo_Get(IntPtr handle, IntPtr streamKind, IntPtr streamNumber, IntPtr parameter, IntPtr infoKind, IntPtr searchKind);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfo_Option(IntPtr handle, IntPtr option, IntPtr value);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfo_State_Get(IntPtr handle);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfo_Count_Get(IntPtr handle, IntPtr StreamKind, IntPtr streamNumber);
+
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfoA_New();
+        [DllImport("MediaInfo.dll")]
+        private static extern void MediaInfoA_Delete(IntPtr handle);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfoA_Open(IntPtr handle, IntPtr fileName);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfoA_Open_Buffer_Init(IntPtr handle, Int64 fileSize, Int64 fileOffset);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfoA_Open_Buffer_Continue(IntPtr handle, byte[] buffer, IntPtr bufferSize);
+        [DllImport("MediaInfo.dll")]
+        private static extern Int64 MediaInfoA_Open_Buffer_Continue_GoTo_Get(IntPtr handle);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfoA_Open_Buffer_Finalize(IntPtr handle);
+        [DllImport("MediaInfo.dll")]
+        private static extern void MediaInfoA_Close(IntPtr handle);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfoA_GetI(IntPtr handle, IntPtr streamKind, IntPtr streamNumber, IntPtr parameter, IntPtr infoKind);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfoA_Get(IntPtr handle, IntPtr streamKind, IntPtr streamNumber, IntPtr parameter, IntPtr infoKind, IntPtr searchKind);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfoA_Option(IntPtr handle, IntPtr option, IntPtr value);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfoA_State_Get(IntPtr handle);
+        [DllImport("MediaInfo.dll")]
+        private static extern IntPtr MediaInfoA_Count_Get(IntPtr handle, IntPtr StreamKind, IntPtr streamNumber);
+    }
+}
--- a/src/NzbDrone.Core/MediaFiles/MediaInfo/VideoFileInfoReader.cs
+++ b/src/NzbDrone.Core/MediaFiles/MediaInfo/VideoFileInfoReader.cs
@@ -2,7 +2,6 @@
 using System.Globalization;
 using System.IO;
 using System.Text;
-using MediaInfoLib;
 using NLog;
 using NzbDrone.Common.Disk;
 using NzbDrone.Common.EnvironmentInfo;
@@ -33,29 +32,16 @@ namespace NzbDrone.Core.MediaFiles.MediaInfo
            if (!_diskProvider.FileExists(filename))
                throw new FileNotFoundException("Media file does not exist: " + filename);

-            MediaInfoLib.MediaInfo mediaInfo = null;
+            MediaInfo mediaInfo = null;

            try
            {
-                mediaInfo = new MediaInfoLib.MediaInfo();
+                mediaInfo = new MediaInfo();
                _logger.Debug("Getting media info from {0}", filename);

                mediaInfo.Option("ParseSpeed", "0.2");

-                int open;
-                if (OsInfo.IsWindows)
-                {
-                    open = mediaInfo.Open(filename);
-                }
-                else
-                {
-                    mediaInfo.Option("CharSet", "UTF-8");
-
-                    // On non-Windows the wrapper uses the ansi library methods, which libmediainfo converts internally to unicode from multibyte (utf8).
-                    // To avoid building MediaInfoDotNet ourselves we simply trick the wrapper to send utf8 strings instead of ansi.
-                    var utf8filename = Encoding.Default.GetString(Encoding.UTF8.GetBytes(filename));
-                    open = mediaInfo.Open(utf8filename);
-                }
+                int open = mediaInfo.Open(_diskProvider.OpenReadStream(filename));

                if (open != 0)
                {
--- a/src/NzbDrone.Core/NzbDrone.Core.csproj
+++ b/src/NzbDrone.Core/NzbDrone.Core.csproj
@@ -93,9 +93,6 @@
    <Reference Include="System.Xml" />
    <Reference Include="System.Xml.Linq" />
    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="MediaInfoDotNet">
-      <HintPath>..\packages\MediaInfoNet.0.3\lib\MediaInfoDotNet.dll</HintPath>
-    </Reference>
    <Reference Include="NLog">
      <HintPath>..\packages\NLog.2.1.0\lib\net40\NLog.dll</HintPath>
    </Reference>
@@ -606,6 +603,7 @@
      <SubType>Code</SubType>
    </Compile>
    <Compile Include="MediaFiles\MediaFileTableCleanupService.cs" />
+    <Compile Include="MediaFiles\MediaInfo\MediaInfoLib.cs" />
    <Compile Include="MediaFiles\MediaInfo\MediaInfoModel.cs" />
    <Compile Include="MediaFiles\MediaInfo\UpdateMediaInfoService.cs" />
    <Compile Include="MediaFiles\MediaInfo\VideoFileInfoReader.cs" />
@@ -940,6 +938,9 @@
  </ItemGroup>
  <ItemGroup>
    <None Include="App.config" />
+    <None Include="NzbDrone.Core.dll.config">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
    <None Include="packages.config" />
    <None Include="Properties\AnalysisRules.ruleset" />
  </ItemGroup>
--- a/src/NzbDrone.Core/NzbDrone.Core.dll.config
+++ b/src/NzbDrone.Core/NzbDrone.Core.dll.config
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<configuration>
+  <dllmap os="osx" dll="MediaInfo.dll" target="libmediainfo.0.dylib"/>
+  <dllmap os="linux" dll="MediaInfo.dll" target="libmediainfo.so.0" />
+  <dllmap os="freebsd" dll="MediaInfo.dll" target="libmediainfo.so.0" />
+  <dllmap os="solaris" dll="MediaInfo.dll" target="libmediainfo.so.0.0.0" />
+</configuration>
--- a/src/NzbDrone.Core/packages.config
+++ b/src/NzbDrone.Core/packages.config
@@ -4,7 +4,6 @@
  <package id="FluentMigrator.Runner" version="1.3.1.0" targetFramework="net40" />
  <package id="FluentValidation" version="5.5.0.0" targetFramework="net40" />
  <package id="ImageResizer" version="3.4.3" targetFramework="net40" />
-  <package id="MediaInfoNet" version="0.3" targetFramework="net40" />
  <package id="Newtonsoft.Json" version="6.0.6" targetFramework="net40" />
  <package id="NLog" version="2.1.0" targetFramework="net40" />
  <package id="Prowlin" version="0.9.4456.26422" targetFramework="net40" />