/// <summary>
/// ストリームに対応するすべてのバッファーをクリアし、バッファー内のデータを基になるデバイスに書き込みます。
/// </summary>
public override void Flush()
{
if (this.Disposed)
{
throw new ObjectDisposedException("BaseStream");
}
bool little = BitConverter.IsLittleEndian;
bool big = !little;
long position = this.BaseStream.Position;
this.BaseStream.Seek(0L, SeekOrigin.Begin);
using (BinaryWriter bw = new BinaryWriter(this.BaseStream))
{
// 4 bytes, offset 4
bw.Write(BitOperate.ReverseBytes((int)0x52494646, little));
// 4 bytes, offset 8
bw.Write(BitOperate.ReverseBytes((int)(this.WrittenBytes + 36), big));
// 8 bytes, offset 16
bw.Write(BitOperate.ReverseBytes((long)0x57415645666D7420, little));
// 4 bytes, offset 20
bw.Write(BitOperate.ReverseBytes((int)16, big));
// 2 bytes, offset 22
bw.Write(BitOperate.ReverseBytes((short)1, big));
// 2 bytes, offset 24
bw.Write(BitOperate.ReverseBytes((short)this.ChannelCount, big));
// 4 bytes, offset 28
bw.Write(BitOperate.ReverseBytes((int)this.SamplingRate, big));
// 4 bytes, offset 32
bw.Write(BitOperate.ReverseBytes((int)(this.SamplingRate * this.ChannelCount * (this.BitPerSample / 8)), big));
// 2 bytes, offset 34
bw.Write(BitOperate.ReverseBytes((short)(this.ChannelCount * (this.BitPerSample / 8)), big));
// 2 bytes, offset 36
bw.Write(BitOperate.ReverseBytes((short)this.BitPerSample, big));
// 4 bytes, offset 40
bw.Write(BitOperate.ReverseBytes((int)0x64617461, little));
// 4 bytes, offset 44
bw.Write(BitOperate.ReverseBytes((int)this.WrittenBytes, big));
}
this.BaseStream.Seek(position, SeekOrigin.Begin);
this.BaseStream.Flush();
}
public void ReverseBytesInt16Test()
{
unchecked
{
const short val_short = (short)0x0123;
const short val_short_reverse = (short)0x2301;
Assert.AreEqual(val_short_reverse, BitOperate.ReverseBytes(val_short, true));
Assert.AreEqual(val_short, BitOperate.ReverseBytes(val_short, false));
Assert.AreEqual(val_short, BitOperate.ReverseBytes(BitOperate.ReverseBytes(val_short, true), true));
}
}
public void ReverseBytesInt64Test()
{
unchecked
{
const long val_long = (long)0x0123456789ABCDEF;
const long val_long_reverse = (long)0xEFCDAB8967452301;
Assert.AreEqual(val_long_reverse, BitOperate.ReverseBytes(val_long, true));
Assert.AreEqual(val_long, BitOperate.ReverseBytes(val_long, false));
Assert.AreEqual(val_long, BitOperate.ReverseBytes(BitOperate.ReverseBytes(val_long, true), true));
}
}
public void ReverseBytesInt32Test()
{
unchecked
{
const int val_int = (int)0x01234567;
const int val_int_reverse = (int)0x67452301;
Assert.AreEqual(val_int_reverse, BitOperate.ReverseBytes(val_int, true));
Assert.AreEqual(val_int, BitOperate.ReverseBytes(val_int, false));
Assert.AreEqual(val_int, BitOperate.ReverseBytes(BitOperate.ReverseBytes(val_int, true), true));
}
}
