internal override IEnumerable <int> MixSamples(IFlacReader reader)
{
if (!reader.Read() || reader.RecordType != FlacRecordType.Subframe)
{
throw new FlacException("Right channel expected");
}
int[] left = reader.ReadSubframeValues();
if (!reader.Read() || reader.RecordType != FlacRecordType.Subframe)
{
throw new FlacException("Side channel expected");
}
int[] side = reader.ReadSubframeValues();
for (int i = 0; i < left.Length; i++)
{
yield return(left[i]);
yield return(left[i] - side[i]);
}
reader.Read();
}
internal override IEnumerable <int> MixSamples(IFlacReader reader)
{
if (!reader.Read() || reader.RecordType != FlacRecordType.Subframe)
{
throw new FlacException("Mid channel expected");
}
int[] mid = reader.ReadSubframeValues();
if (!reader.Read() || reader.RecordType != FlacRecordType.Subframe)
{
throw new FlacException("Side channel expected");
}
int[] side = reader.ReadSubframeValues();
for (int i = 0; i < mid.Length; i++)
{
int right = mid[i] - (side[i] >> 1);
yield return(right + side[i]);
yield return(right);
}
reader.Read();
}
internal override IEnumerable <int> MixSamples(IFlacReader reader)
{
int blockSize = reader.BlockSize;
int channelCount = reader.Streaminfo.ChannelsCount;
List <int[]> channelData = new List <int[]>(channelCount);
while (reader.Read() && reader.RecordType == FlacRecordType.Subframe)
{
int[] data = reader.ReadSubframeValues();
channelData.Add(data);
}
for (int i = 0; i < blockSize; i++)
{
for (int j = 0; j < channelCount; j++)
{
yield return(channelData[j][i]);
}
}
}