protected override void WritePcm16(aBinaryWriter writer)
{
mReader.Goto(0);
switch (mFormat)
{
case WaveFormat.Pcm8: {
for (var i = 0; i < mSampleCount; ++i)
{
short pcm16;
Waveform.Pcm8toPcm16(mReader.ReadS8(), out pcm16);
writer.WriteS16(pcm16);
}
break;
}
case WaveFormat.Pcm16: {
writer.WriteS16s(mReader.ReadS16s(mSampleCount));
break;
}
case WaveFormat.Adpcm2: {
var pcm16 = new short[16];
int last = 0, penult = 0;
for (var i = 0; i < mSampleCount; i += 16)
{
Waveform.Adpcm2toPcm16(mReader.Read8s(5), pcm16, ref last, ref penult);
writer.WriteS16s(pcm16, System.Math.Min(16, (mSampleCount - i)));
}
break;
}
case WaveFormat.Adpcm4: {
var pcm16 = new short[16];
int last = 0, penult = 0;
for (var i = 0; i < mSampleCount; i += 16)
{
Waveform.Adpcm4toPcm16(mReader.Read8s(9), pcm16, ref last, ref penult);
writer.WriteS16s(pcm16, System.Math.Min(16, (mSampleCount - i)));
}
break;
}
}
}
