Refactoring of CUETools.Codecs.

CUETools.Codecs/SilenceGenerator.cs

@@ -0,0 +1,59 @@
+namespace CUETools.Codecs
+{
+    public class SilenceGenerator : IAudioSource
+    {
+        private long _sampleOffset, _sampleCount;
+        private AudioPCMConfig pcm;
+        private int _sampleVal;
+
+        public long Length
+        {
+            get { return _sampleCount; }
+        }
+
+        public long Remaining
+        {
+            get { return _sampleCount - _sampleOffset; }
+        }
+
+        public long Position
+        {
+            get { return _sampleOffset; }
+            set { _sampleOffset = value; }
+        }
+
+        public AudioPCMConfig PCM { get { return pcm; } }
+
+        public string Path { get { return null; } }
+
+        public SilenceGenerator(AudioPCMConfig pcm, long sampleCount, int sampleVal)
+        {
+            this._sampleVal = sampleVal;
+            this._sampleOffset = 0;
+            this._sampleCount = sampleCount;
+            this.pcm = pcm;
+        }
+
+        public SilenceGenerator(long sampleCount)
+            : this(AudioPCMConfig.RedBook, sampleCount, 0)
+        {
+        }
+
+        public int Read(AudioBuffer buff, int maxLength)
+        {
+            buff.Prepare(this, maxLength);
+
+            int[,] samples = buff.Samples;
+            for (int i = 0; i < buff.Length; i++)
+                for (int j = 0; j < PCM.ChannelCount; j++)
+                    samples[i, j] = _sampleVal;
+
+            _sampleOffset += buff.Length;
+            return buff.Length;
+        }
+
+        public void Close()
+        {
+        }
+    }
+}