75 lines
1.8 KiB
C#
75 lines
1.8 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2022 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System;
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using System.IO;
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using OpenRA.Mods.Cnc.FileFormats;
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namespace OpenRA.Mods.Cnc.AudioLoaders
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{
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public class AudLoader : ISoundLoader
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{
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bool IsAud(Stream s)
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{
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var start = s.Position;
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s.Position += 11;
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var readFormat = s.ReadByte();
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s.Position = start;
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return readFormat == (int)SoundFormat.ImaAdpcm || readFormat == (int)SoundFormat.WestwoodCompressed;
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}
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bool ISoundLoader.TryParseSound(Stream stream, out ISoundFormat sound)
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{
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try
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{
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if (IsAud(stream))
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{
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sound = new AudFormat(stream);
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return true;
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}
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}
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catch
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{
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// Not a supported AUD
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}
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sound = null;
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return false;
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}
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}
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public sealed class AudFormat : ISoundFormat
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{
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public int Channels => channels;
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public int SampleBits => sampleBits;
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public int SampleRate => sampleRate;
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public float LengthInSeconds => lengthInSeconds;
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public Stream GetPCMInputStream() { return audStreamFactory(); }
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public void Dispose() { sourceStream.Dispose(); }
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readonly Stream sourceStream;
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readonly Func<Stream> audStreamFactory;
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readonly int channels;
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readonly int sampleBits;
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readonly int sampleRate;
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readonly float lengthInSeconds;
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public AudFormat(Stream stream)
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{
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sourceStream = stream;
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if (!AudReader.LoadSound(stream, out audStreamFactory, out sampleRate, out sampleBits, out channels, out lengthInSeconds))
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throw new InvalidDataException();
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}
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}
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}
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