init commit

output/VideoReader/libfaad.cs

@@ -0,0 +1,81 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace VideoReader;
+
+public class libfaad
+{
+	public struct NeAACDecConfiguration
+	{
+		public char defObjectType;
+
+		public int defSampleRate;
+
+		public char outputFormat;
+
+		public char downMatrix;
+
+		public char useOldADTSFormat;
+	}
+
+	public struct NeAACDecFrameInfo
+	{
+		public int bytesconsumed;
+
+		public int samples;
+
+		public char channels;
+
+		public char error;
+
+		public int samplerate;
+
+		public char sbr;
+
+		public char object_type;
+
+		public char header_type;
+
+		public char num_front_channels;
+
+		public char num_side_channels;
+
+		public char num_back_channels;
+
+		public char num_lfe_channels;
+
+		[MarshalAs(UnmanagedType.ByValArray, SizeConst = 64)]
+		public char[] channel_position;
+
+		public char ps;
+	}
+
+	private const string libPath = "libfaad2.dll";
+
+	[DllImport("libfaad2.dll", CallingConvention = CallingConvention.Cdecl)]
+	public static extern IntPtr NeAACDecOpen();
+
+	[DllImport("libfaad2.dll", CallingConvention = CallingConvention.Cdecl)]
+	public static extern IntPtr NeAACDecGetCurrentConfiguration(IntPtr hpDecoder);
+
+	[DllImport("libfaad2.dll", CallingConvention = CallingConvention.Cdecl)]
+	public static extern char NeAACDecSetConfiguration(IntPtr hpDecoder, IntPtr config);
+
+	[DllImport("libfaad2.dll", CallingConvention = CallingConvention.Cdecl)]
+	public unsafe static extern int NeAACDecInit(IntPtr hpDecoder, byte[] buffer, int buffer_size, ulong* samplerate, char* channels);
+
+	[DllImport("libfaad2.dll", CallingConvention = CallingConvention.Cdecl)]
+	public unsafe static extern char NeAACDecInit2(IntPtr hpDecoder, byte[] buffer, int SizeOfDecoderSpecificInfo, ulong* samplerate, char* channels);
+
+	[DllImport("libfaad2.dll", CallingConvention = CallingConvention.Cdecl)]
+	public static extern IntPtr NeAACDecDecode(IntPtr hpDecoder, out NeAACDecFrameInfo hInfo, byte[] buffer, int buffer_size);
+
+	[DllImport("libfaad2.dll", CallingConvention = CallingConvention.Cdecl)]
+	public static extern void NeAACDecClose(IntPtr hpDecoder);
+
+	[DllImport("libfaad2.dll", CallingConvention = CallingConvention.Cdecl)]
+	public unsafe static extern char* NeAACDecGetErrorMessage(char errcode);
+
+	[DllImport("libfaad2.dll", CallingConvention = CallingConvention.Cdecl)]
+	public static extern char NeAACDecAudioSpecificConfig(IntPtr pBuffer, int buffer_size, IntPtr mp4ASC);
+}