public SubSeekableAudioStream(ISeekableAudioStream parent, Timestamp start, Timestamp end, bool disposeAfterUse = true)
{
_parent = parent;
_disposeAfterUse = disposeAfterUse;
_start = AudioStreamHelper.ConvertTimeToStreamPos(start, Rate, IsStereo);
_pos = new Timestamp(0, Rate * (IsStereo ? 2 : 1));
_length = AudioStreamHelper.ConvertTimeToStreamPos(end, Rate, IsStereo) - _start;
Debug.Assert(_length.TotalNumberOfFrames % (IsStereo ? 2 : 1) == 0);
_parent.Seek(_start);
}
public bool Seek(Timestamp where)
{
_pos = AudioStreamHelper.ConvertTimeToStreamPos(where, Rate, IsStereo);
if (_pos > _length)
{
_pos = _length;
return(false);
}
if (_parent.Seek(_pos + _start))
{
return(true);
}
else
{
_pos = _length;
return(false);
}
}