Add support for libvlc_media_new_fd

src/Vlc.DotNet.Core.Interops/Signatures/libvlc_media.h/libvlc_media_new_fd.cs

@@ -0,0 +1,35 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace Vlc.DotNet.Core.Interops.Signatures
+{
+    /// <summary>
+    /// Create a media for an already open file descriptor.
+    /// The file descriptor shall be open for reading (or reading and writing).
+    /// 
+    /// Regular file descriptors, pipe read descriptors and character device
+    /// descriptors (including TTYs) are supported on all platforms.
+    /// Block device descriptors are supported where available.
+    /// Directory descriptors are supported on systems that provide <c>fdopendir()</c>.
+    /// Sockets are supported on all platforms where they are file descriptors,
+    /// i.e. all except Windows.
+    /// </summary>
+    /// <remarks>
+    /// This library will <b>not</b> automatically close the file descriptor
+    /// under any circumstance. Nevertheless, a file descriptor can usually only be
+    /// rendered once in a media player. To render it a second time, the file
+    /// descriptor should probably be rewound to the beginning with lseek().
+    /// </remarks>
+    /// <param name="instance">
+    /// The instance
+    /// </param>
+    /// <param name="fd">
+    /// An open file descriptor
+    /// </param>
+    /// <returns>
+    /// the newly created media or NULL on error
+    /// </returns>
+    [LibVlcFunction("libvlc_media_new_fd")]
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    internal delegate IntPtr CreateNewMediaFromFileDescriptor(IntPtr instance, int fd);
+}

src/Vlc.DotNet.Core.Interops/VlcManager.CreateNewMediaFromFileDescriptor.cs

@@ -0,0 +1,14 @@
+using Vlc.DotNet.Core.Interops.Signatures;
+
+namespace Vlc.DotNet.Core.Interops
+{
+    public sealed partial class VlcManager
+    {
+        public VlcMediaInstance CreateNewMediaFromFileDescriptor(int fileDescriptor)
+        {
+            EnsureVlcInstance();
+
+            return VlcMediaInstance.New(this, GetInteropDelegate<CreateNewMediaFromFileDescriptor>().Invoke(myVlcInstance, fileDescriptor));
+        }
+    }
+}