public void ReadFile(string path)
{
var bytes = File.ReadAllBytes(path);
using (var stream = new BinaryStream(new MemoryStream(bytes)))
{
if (stream.ReadString(4) != magic)
{
throw new InvalidDataException("Not an ESGX file. Please open an ESGX file and try again.");
}
stream.Position += 4;
SGXDPointer = stream.ReadUInt32();
sampleAmount = stream.ReadUInt32();
settingsPointer = stream.ReadUInt32();
unk = stream.ReadBytes(4);
stream.Position = settingsPointer;
for (int i = 0; i < sampleAmount; i++)
{
SampleSetting sample = new SampleSetting();
sample.rpmPitch = stream.ReadInt16();
sample.rpmStart = stream.ReadInt16();
sample.rpmEnd = stream.ReadInt16();
sample.rpmVolume = stream.ReadInt16();
sample.rpmFrequency = stream.ReadInt32();
sample.SGXDOffset = stream.ReadInt32();
sampleSettings.Add(sample);
}
stream.Position += 12;
for (int i = 0; i < sampleAmount; i++)
{
stream.Position = sampleSettings[i].SGXDOffset;
SGXDEntry entry = new SGXDEntry();
entry.waveChunk = new WaveChunk();
entry.nameChunk = new NameChunk();
stream.Position += 4;
entry.namePointer = stream.ReadUInt32();
entry.dataOffset = stream.ReadUInt32();
entry.fileSize = stream.ReadUInt16();
entry.unknown = stream.ReadUInt16();
stream.Position += 4;
entry.waveChunk.chunkSize = stream.ReadUInt32();
stream.Position += 4;
entry.waveChunk.soundAmount = stream.ReadUInt32();
entry.waveChunk.flag2 = stream.ReadUInt32();
entry.waveChunk.nameOffset = stream.ReadUInt32();
entry.waveChunk.codecType = stream.Read1Byte();
entry.waveChunk.channels = stream.Read1Byte();
stream.Position += 2;
entry.waveChunk.soundSampleRate = stream.ReadUInt32();
entry.waveChunk.bitRate = stream.ReadUInt32();
stream.Position += 4;
entry.waveChunk.volumeL = stream.ReadUInt16();
entry.waveChunk.volumeR = stream.ReadUInt16();
entry.waveChunk.loopStartSample = stream.ReadUInt32();
stream.Position += 8;
entry.waveChunk.loopEndSample = stream.ReadUInt32();
entry.waveChunk.streamSize = stream.ReadUInt32();
stream.Position += 20;
entry.nameChunk.chunkSize = stream.ReadUInt32();
entry.nameChunk.unknown = stream.ReadBytes(24);
entry.nameChunk.fileName = stream.ReadString(StringCoding.ZeroTerminated);
stream.Position = sampleSettings[i].SGXDOffset + entry.dataOffset;
entry.audioStream = stream.ReadBytes(entry.fileSize);
sgxdEntries.Add(entry);
}
}
}
public void ReadESFile(string path)
{
var bytes = File.ReadAllBytes(path);
using (var stream = new BinaryStream(new MemoryStream(bytes), ByteConverter.Little))
{
if (stream.ReadString(4) != esMagic)
{
throw new InvalidDataException("Not an ES file. Please open an ES file and try again.");
}
stream.Position += 4;
soundStartPointer = stream.ReadUInt32();
stream.Position += 4;
audioChunkSize = stream.ReadUInt32();
stream.Position += 4;
sampleAmount = stream.ReadUInt32();
stream.Position += 20;
for (int i = 0; i < sampleAmount; i++)
{
SampleSetting sample = new SampleSetting();
sample.rpmPitch = stream.ReadInt16();
sample.rpmStart = stream.ReadInt16();
sample.rpmEnd = stream.ReadInt16();
sample.rpmVolume = stream.ReadInt16();
sample.rpmFrequency = stream.ReadInt32();
sample.SGXDOffset = stream.ReadInt32();
sampleSettings.Add(sample);
}
int j = 0;
foreach (SampleSetting setting in sampleSettings)
{
stream.Position = soundStartPointer + setting.SGXDOffset + 16; // 16 empty bytes at the start of each
SGXDEntry entry = new SGXDEntry();
entry.waveChunk = new WaveChunk();
entry.nameChunk.fileName = string.Format("{0}_{1}", Path.GetFileNameWithoutExtension(path), j);
entry.waveChunk.soundSampleRate = (uint)setting.rpmFrequency * 10;
if (j == 0)
{
entry.audioStream = stream.ReadBytes(sampleSettings[j + 1].SGXDOffset - 16);
}
if (j == sampleSettings.Count - 1)
{
entry.audioStream = stream.ReadBytes(int.Parse(stream.Length.ToString()) - int.Parse(stream.Position.ToString()));
}
else
{
entry.audioStream = stream.ReadBytes(sampleSettings[j + 1].SGXDOffset - sampleSettings[j].SGXDOffset - 16);
}
entry.fileSize = ushort.Parse(entry.audioStream.Length.ToString());
sgxdEntries.Add(entry);
j++;
}
}
// Just set all RPM Frequencies to 4200 as this seems to work globally
foreach (SampleSetting setting in sampleSettings)
{
setting.rpmFrequency = 4200;
}
// Read loop start and end samples
foreach (SGXDEntry entry in sgxdEntries)
{
File.WriteAllBytes(string.Format("{0}.tmp", Path.Combine(Path.GetDirectoryName(path), "tempAudio")), entry.audioStream);
var test = new AudioFileReader(Path.Combine(Path.GetDirectoryName(path), "tempAudio")).Length;
byte[] currentLine;
int loopStart, loopEnd, numSamples;
using (var stream = new BinaryStream(new MemoryStream(entry.audioStream)))
{
numSamples = (entry.audioStream.Length / 16) * 28;
//stream.Position = 16;
while (stream.Position <= entry.audioStream.Length)
{
currentLine = stream.ReadBytes(16);
// Read second byte of a line - 6 = loop start, 3 = loop end, determine sample count from where we are in seek
if (currentLine[1] == 6)
{
entry.waveChunk.loopStartSample = (uint)(stream.Position - 16) / 16 * 28;
}
if (currentLine[1] == 3)
{
entry.waveChunk.loopEndSample = (uint)(stream.Position - 16) / 16 * 28;
break;
}
}
}
}
}