2.0.7

2025-12-16 18:14:25 +00:00 · 2010-03-30 02:41:43 +00:00
parent 771df3be5a
commit 881951cb02
74 changed files with 6489 additions and 1709 deletions
--- a/CUETools.Codecs.CoreAudio/WaveFormats/WaveFormatExtensible.cs
+++ b/CUETools.Codecs.CoreAudio/WaveFormats/WaveFormatExtensible.cs
@@ -0,0 +1,79 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Runtime.InteropServices;
+using NAudio.Dmo;
+
+namespace NAudio.Wave
+{
+    /// <summary>
+    /// WaveFormatExtensible
+    /// http://www.microsoft.com/whdc/device/audio/multichaud.mspx
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi, Pack = 2)]	
+    public class WaveFormatExtensible : WaveFormat
+    {        
+        short wValidBitsPerSample; // bits of precision, or is wSamplesPerBlock if wBitsPerSample==0
+        int dwChannelMask; // which channels are present in stream
+        Guid subFormat;
+
+        /// <summary>
+        /// Parameterless constructor for marshalling
+        /// </summary>
+        WaveFormatExtensible()
+        {
+        }
+
+        /// <summary>
+        /// Creates a new WaveFormatExtensible for PCM or IEEE
+        /// </summary>
+        public WaveFormatExtensible(int rate, int bits, int channels)
+            : base(rate, bits, channels)
+        {
+            waveFormatTag = WaveFormatEncoding.Extensible;
+            extraSize = 22;
+            wValidBitsPerSample = (short) bits;
+            for (int n = 0; n < channels; n++)
+            {
+                dwChannelMask |= (1 << n);
+            }
+            if (bits == 32)
+            {
+                // KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
+                subFormat = AudioMediaSubtypes.MEDIASUBTYPE_IEEE_FLOAT; // new Guid("00000003-0000-0010-8000-00aa00389b71");
+            }
+            else
+            {
+                // KSDATAFORMAT_SUBTYPE_PCM
+                subFormat = AudioMediaSubtypes.MEDIASUBTYPE_PCM; // new Guid("00000001-0000-0010-8000-00aa00389b71");
+            }
+
+        }
+
+        /// <summary>
+        /// Serialize
+        /// </summary>
+        /// <param name="writer"></param>
+        public override void Serialize(System.IO.BinaryWriter writer)
+        {
+            base.Serialize(writer);
+            writer.Write(wValidBitsPerSample);
+            writer.Write(dwChannelMask);
+            byte[] guid = subFormat.ToByteArray();
+            writer.Write(guid, 0, guid.Length);
+        }
+
+        /// <summary>
+        /// String representation
+        /// </summary>
+        public override string ToString()
+        {
+            return String.Format("{0} wBitsPerSample:{1} dwChannelMask:{2} subFormat:{3} extraSize:{4}",
+                base.ToString(),
+                wValidBitsPerSample,
+                dwChannelMask,
+                subFormat,
+                extraSize);
+        }
+    }
+}