90 lines
2.1 KiB
C#
90 lines
2.1 KiB
C#
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using System;
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using System.IO;
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using ANX.Framework.Audio;
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using ANX.Framework.NonXNA.SoundSystem;
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using SharpDX.XAudio2;
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using SharpDX.Multimedia;
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// This file is part of the ANX.Framework created by the
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// "ANX.Framework developer group" and released under the Ms-PL license.
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// For details see: http://anxframework.codeplex.com/license
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namespace ANX.SoundSystem.Windows.XAudio
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{
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public class XAudioSoundEffect : ISoundEffect
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{
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#region Private
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internal SoundEffect parent;
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private TimeSpan duration;
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internal WaveFormat waveFormat;
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internal AudioBuffer audioBuffer;
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internal uint[] DecodedPacketsInfo;
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#endregion
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#region Public
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public TimeSpan Duration
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{
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get
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{
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return duration;
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}
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}
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#endregion
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#region Constructor
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internal XAudioSoundEffect(SoundEffect setParent, Stream stream)
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{
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parent = setParent;
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CreateFromStream(stream);
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}
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internal XAudioSoundEffect(SoundEffect setParent, byte[] buffer, int offset, int count, int sampleRate,
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AudioChannels channels, int loopStart, int loopLength)
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{
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parent = setParent;
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using (MemoryStream stream = new MemoryStream())
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{
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BinaryWriter writer = new BinaryWriter(stream);
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writer.Write(buffer, offset, count);
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stream.Position = 0;
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CreateFromStream(stream);
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}
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}
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~XAudioSoundEffect()
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{
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Dispose();
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}
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#endregion
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#region CreateFromStream
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private void CreateFromStream(Stream stream)
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{
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var soundStream = new SoundStream(stream);
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waveFormat = soundStream.Format;
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audioBuffer = new AudioBuffer
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{
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Stream = soundStream.ToDataStream(),
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AudioBytes = (int)stream.Length,
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Flags = BufferFlags.EndOfStream
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};
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soundStream.Close();
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float sizeMulBlockAlign = soundStream.Length / (waveFormat.Channels * 2);
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duration = TimeSpan.FromMilliseconds((double)(sizeMulBlockAlign * 1000f / (float)waveFormat.SampleRate));
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DecodedPacketsInfo = soundStream.DecodedPacketsInfo;
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}
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#endregion
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#region Dispose
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public void Dispose()
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{
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waveFormat = null;
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audioBuffer = null;
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}
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#endregion
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}
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}
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