public Mono2StereoFilter(PullSoundStreamBase input)
: base(input)
{
if (input.Chans != 1)
{
throw new ArgumentException("Input stream's channel num MUST be 1");
}
}
public override void Dispose()
{
if (Input != null)
{
Input.Dispose();
}
Input = null;
GC.SuppressFinalize(this);
}
/// <summary>
/// CUEシートのTrack情報からストリームを生成
/// </summary>
/// <param name="track">CUEのTrack情報</param>
/// <param name="preScan">preScanを行うかどうか</param>
/// <returns></returns>
private static PullSoundStreamBase CreateStreamCue(CD.Track track, bool preScan)
{
String streamFullPath = System.IO.Path.IsPathRooted(track.file_name_CUESheet)
? track.file_name_CUESheet
: Path.GetDirectoryName(track.file_name) + Path.DirectorySeparatorChar + track.file_name_CUESheet;
PullSoundStreamBase self = CreateFileStreamPrimitive(streamFullPath, preScan);
self = ApplyTrackRange(self, track);
return(self);
}
public RangeFilter(PullSoundStreamBase input, ulong offset, ulong length)
: base(input)
{
if (offset + length > Input.LengthSample)
{
throw new ArgumentOutOfRangeException("offset / length out of range");
}
Offset = offset;
ActualLength = length;
PositionSample = 0; // 先頭にシーク
}
private static PullSoundStreamBase ApplyTrackRange(PullSoundStreamBase self, CD.Track track)
{
var RangeOffset = GetFrame2Sample(self, track.Start);
var RangeLength = track.End > track.Start
? GetFrame2Sample(self, track.End - track.Start)
: self.LengthSample - RangeOffset;
var gain = track.getTagValue("ALBUM GAIN");
if (gain != null)
{
self = new ReplayGainOverrideFilter(self, Util.Util.parseDouble(gain.ToString()));
}
self = new RangeFilter(self, RangeOffset, RangeLength);
return(self);
}
/// <summary>
/// CDのフレームからサンプル数に変換する
/// </summary>
/// <param name="frames">フレーム数</param>
/// <returns>サンプル数</returns>
private static ulong GetFrame2Sample(PullSoundStreamBase llStream, int frames)
{
return((ulong)frames * (llStream.Freq / 75));
}
public ReplayGainOverrideFilter(PullSoundStreamBase input, double gain)
: base(input)
{
this.OverrideGain = gain;
}
public AbstractFilter(PullSoundStreamBase input)
{
this.Input = input;
}
public FreqConvertFilter(PullSoundStreamBase input)
: base(input)
{
}
