public override void PrintSpecificMetadata(object metadata, StringBuilder builder)
{
var hcaStructure = metadata as HcaStructure;
HcaInfo hca = hcaStructure?.Hca;
if (hcaStructure == null || hca == null)
{
throw new InvalidDataException("Could not parse file metadata.");
}
builder.AppendLine();
builder.AppendLine($"HCA version: {hcaStructure.Version >> 8}.{hcaStructure.Version & 0xf}");
builder.AppendLine($"Frame size: {hca.FrameSize} bytes");
builder.AppendLine($"Frame count: {hca.FrameCount}");
builder.AppendLine($"Inserted samples: {hca.InsertedSamples}");
builder.AppendLine($"Base band count: {hca.BaseBandCount}");
builder.AppendLine($"Joint stereo band count: {hca.StereoBandCount}");
builder.AppendLine($"HFR band count: {hca.HfrBandCount}");
builder.AppendLine($"Total band count: {hca.TotalBandCount}");
// ReSharper disable once CompareOfFloatsByEqualityOperator
if (hca.Volume != 1)
{
builder.AppendLine($"Volume: {hca.Volume}");
}
if (!string.IsNullOrWhiteSpace(hca.Comment))
{
builder.AppendLine($"Comment: {hca.Comment}");
}
}
public CriHcaFormatBuilder(byte[][] audioData, HcaInfo hca)
{
AudioData = audioData;
Hca = hca;
SampleRate = hca.SampleRate;
SampleCount = hca.SampleCount;
if (hca.Looping)
{
Looping = true;
LoopStart = hca.LoopStartSample;
LoopEnd = hca.LoopEndSample;
}
}
public override Common ToCommon(object metadata)
{
var hcaStructure = metadata as HcaStructure;
HcaInfo hca = hcaStructure?.Hca;
if (hcaStructure == null || hca == null)
{
throw new InvalidDataException("Could not parse file metadata.");
}
return(new Common
{
SampleCount = hca.SampleCount,
SampleRate = hca.SampleRate,
ChannelCount = hca.ChannelCount,
Format = AudioFormat.CriHca,
Looping = hca.Looping,
LoopStart = hca.LoopStartSample,
LoopEnd = hca.LoopEndSample
});
}
private static void ReadHcaHeader(BinaryReader reader, HcaStructure structure)
{
HcaInfo hca = structure.Hca;
string signature = ReadChunkId(reader);
structure.Version = reader.ReadInt16();
structure.HeaderSize = reader.ReadInt16();
if (signature != "HCA\0")
{
throw new InvalidDataException("Not a valid HCA file");
}
bool hasAthChunk = false;
while (reader.BaseStream.Position < structure.HeaderSize)
{
string chunkId = ReadChunkId(reader);
switch (chunkId)
{
case "fmt\0":
ReadFmtChunk(reader, structure);
break;
case "comp":
ReadCompChunk(reader, structure);
break;
case "dec\0":
ReadDecChunk(reader, structure);
break;
case "loop":
ReadLoopChunk(reader, structure);
break;
case "ath\0":
ReadAthChunk(reader, structure);
hasAthChunk = true;
break;
case "ciph":
ReadCiphChunk(reader, structure);
break;
case "rva\0":
ReadRvaChunk(reader, structure);
break;
case "vbr\0":
ReadVbrChunk(reader, structure);
break;
case "comm":
ReadCommChunk(reader, structure);
reader.BaseStream.Position = structure.HeaderSize;
break;
case "pad\0":
reader.BaseStream.Position = structure.HeaderSize;
break;
default:
throw new NotSupportedException($"Chunk {chunkId} is not supported.");
}
}
if (structure.Version < 0x0200 && !hasAthChunk)
{
hca.UseAthCurve = true;
}
if (hca.TrackCount < 1)
{
hca.TrackCount = 1;
}
hca.CalculateHfrValues();
}