private void ParseRelativeVolumeFields(ByteVector data)
{
int pos = data.Find(TextDelimiter(StringType.Latin1));
if (pos < 0)
{
return;
}
identification = data.Mid(0, pos).ToString(StringType.Latin1);
pos += 1;
// Each channel is at least 4 buffer.
while (pos <= data.Count - 4)
{
Id3v2ChannelType type = (Id3v2ChannelType)data[pos];
pos += 1;
SetVolumeAdjustmentIndex(data.Mid(pos, 2).ToShort(), type);
pos += 2;
int bytes = BitsToBytes(data[pos]);
pos += 1;
SetPeakVolumeIndex(ParsePeakVolume(data.Mid(pos, bytes)), type);
pos += bytes;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="Id3v2ChannelInformation"/> class.
/// </summary>
/// <param name="channelType">Type of the channel.</param>
/// <param name="volumeAdjustment">The volume adjustment.</param>
/// <param name="bitsRepresentingPeak">The bits representing peak.</param>
/// <param name="peakVolume">The peak volume.</param>
public Id3v2ChannelInformation(Id3v2ChannelType channelType, float volumeAdjustment, byte bitsRepresentingPeak, long peakVolume)
{
ChannelType = channelType;
VolumeAdjustment = volumeAdjustment;
BitsRepresentingPeak = bitsRepresentingPeak;
PeakVolume = peakVolume;
}
public void SetVolumeAdjustmentIndex(short index, Id3v2ChannelType type)
{
if (!channels.ContainsKey(type))
{
channels.Add(type, new ChannelData(type));
}
channels[type].VolumeAdjustment = index;
}
public void SetPeakVolumeIndex(ulong index, Id3v2ChannelType type)
{
if (!channels.ContainsKey(type))
{
channels.Add(type, new ChannelData(type));
}
channels[type].PeakVolume = index;
}
public float VolumeAdjustment(Id3v2ChannelType type)
{
return(((float)VolumeAdjustmentIndex(type)) / 512f);
}
public ChannelData(Id3v2ChannelType type)
{
channelType = type;
//volumeAdjustment = 0;
//peakVolume = 0;
}
public float VolumeAdjustment(Id3v2ChannelType type)
{
return ((float)VolumeAdjustmentIndex(type)) / 512f;
}
public void SetPeakVolume(double adjustment, Id3v2ChannelType type)
{
SetPeakVolumeIndex((ulong)(adjustment * 512.0), type);
}
public double PeakVolume(Id3v2ChannelType type)
{
return(((double)PeakVolumeIndex(type)) / 512.0);
}
public ulong PeakVolumeIndex(Id3v2ChannelType type)
{
return(channels.ContainsKey(type) ? channels[type].PeakVolume : 0);
}
public void SetVolumeAdjustmentIndex(short index, Id3v2ChannelType type)
{
if (!channels.ContainsKey(type))
channels.Add(type, new ChannelData(type));
channels[type].VolumeAdjustment = index;
}
public void SetVolumeAdjustment(float adjustment, Id3v2ChannelType type)
{
SetVolumeAdjustmentIndex((short)(adjustment * 512f), type);
}
public short VolumeAdjustmentIndex(Id3v2ChannelType type)
{
return(channels.ContainsKey(type) ? channels[type].VolumeAdjustment : (short)0);
}
public ChannelData(Id3v2ChannelType type)
{
channelType = type;
//volumeAdjustment = 0;
//peakVolume = 0;
}
public void SetPeakVolume(double adjustment, Id3v2ChannelType type)
{
SetPeakVolumeIndex((ulong)(adjustment * 512.0), type);
}
public double PeakVolume(Id3v2ChannelType type)
{
return ((double)PeakVolumeIndex(type)) / 512.0;
}
public void SetPeakVolumeIndex(ulong index, Id3v2ChannelType type)
{
if (!channels.ContainsKey(type))
channels.Add(type, new ChannelData(type));
channels[type].PeakVolume = index;
}
public ulong PeakVolumeIndex(Id3v2ChannelType type)
{
return channels.ContainsKey(type) ? channels[type].PeakVolume : 0;
}
public void SetVolumeAdjustment(float adjustment, Id3v2ChannelType type)
{
SetVolumeAdjustmentIndex((short)(adjustment * 512f), type);
}
////------------------------------------------------------------------------------------------------------------------------------
private static bool IsValidChannelType(Id3v2ChannelType channelType)
{
return Enum.TryParse(channelType.ToString(), true, out channelType);
}
public short VolumeAdjustmentIndex(Id3v2ChannelType type)
{
return channels.ContainsKey(type) ? channels[type].VolumeAdjustment : (short)0;
}
