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using System; |
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using System.IO; |
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|
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namespace Oni.Sound |
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{ |
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internal class WavExporter : SoundExporter |
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{ |
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#region Private data |
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private const int fcc_RIFF = 0x46464952; |
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private const int fcc_WAVE = 0x45564157; |
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private const int fcc_fmt = 0x20746d66; |
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private const int fcc_data = 0x61746164; |
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|
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private static readonly byte[] formatTemplate = new byte[50] |
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{ |
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0x02, 0, 0, 0, 0x22, 0x56, 0, 0, 0, 0, 0, 0, 0, 0x02, 0x04, 0, |
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0x20, 0, 0xf4, 0x03, 0x07, 0, 0, 0x01, 0, 0, 0, 0x02, 0, 0xff, 0, 0, 0, 0, 0xc0, 0, 0x40, 0, |
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0xf0, 0, 0, 0, 0xcc, 0x01, 0x30, 0xff, 0x88, 0x01, 0x18, 0xff |
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}; |
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|
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#endregion |
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|
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public WavExporter(InstanceFileManager fileManager, string outputDirPath) |
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: base(fileManager, outputDirPath) |
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{ |
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} |
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|
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protected override void ExportInstance(InstanceDescriptor descriptor) |
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{ |
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var sound = SoundData.Read(descriptor); |
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|
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using (var stream = File.Create(Path.Combine(OutputDirPath, descriptor.FullName + ".wav"))) |
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using (var writer = new BinaryWriter(stream)) |
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{ |
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var format = (byte[])formatTemplate.Clone(); |
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|
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Array.Copy(BitConverter.GetBytes(sound.ChannelCount), 0, format, 2, 2); |
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Array.Copy(BitConverter.GetBytes(sound.ChannelCount == 1 ? 11155 : 22311), 0, format, 8, 4); |
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Array.Copy(BitConverter.GetBytes(sound.ChannelCount == 1 ? 512 : 1024), 0, format, 12, 2); |
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|
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writer.Write(fcc_RIFF); |
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writer.Write(8 + format.Length + 8 + sound.Data.Length); |
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writer.Write(fcc_WAVE); |
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|
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// |
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// write format chunk |
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// |
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|
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writer.Write(fcc_fmt); |
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writer.Write(format.Length); |
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writer.Write(format); |
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|
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// |
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// write data chunk |
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// |
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|
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writer.Write(fcc_data); |
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writer.Write(sound.Data.Length); |
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writer.Write(sound.Data); |
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} |
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} |
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} |
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} |
