private void ReadSample(BinaryReader reader, int sampleIndex)
{
BnkSample sample = new BnkSample();
reader.BaseStream.Position += 0x28;
string id = new string(reader.ReadChars(4));
sample.SampleRate = reader.ReadInt32();
byte bytesPerSample = reader.ReadByte();
sample.NbrChannels = reader.ReadByte();
byte compression = reader.ReadByte();
byte type = reader.ReadByte();
int totalLength = reader.ReadInt32();
sample.LoopStart = reader.ReadInt32();
int loopLength = reader.ReadInt32();
int dataOffset = reader.ReadInt32();
int unk3 = reader.ReadInt32();
// HACKS to avoid popping sounds.. Not sure why we need to do this.. maybe NFS finds values near
// loop start/end which are the best match
//if (_filename == "SUPRA_SW.bnk" && sampleIndex == 0)
// loopLength += 10;
//Debug.WriteLine(String.Format("{0}: sampleRate:{5} bps: {1} loopStart: {2} loopLen: {3} totalLen: {4}, offset: {6}, channels: {7}",
// headerIndex, bytesPerSample, sample.LoopStart, loopLength, sample.NbrSamples, sample.SampleRate, dataOffset, sample.NbrChannels));
reader.BaseStream.Position = dataOffset + (bytesPerSample * sample.NbrChannels * sample.LoopStart);
sample.NbrSamples = loopLength == 0 ? totalLength : loopLength;
byte[] soundData = reader.ReadBytes(bytesPerSample * sample.NbrChannels * sample.NbrSamples);
if (bytesPerSample == 1) //convert 8 bit signed PCM data to unsigned
{
for (int i = 0; i < soundData.Length; i++)
soundData[i] = (byte)(soundData[i] + 0x80);
}
if (ForceMono && sample.NbrChannels == 2)
{
MemoryStream ms = new MemoryStream();
for (int i = 0; i < soundData.Length; i += bytesPerSample * 2)
{
ms.Write(soundData, i, bytesPerSample);
}
soundData = ms.ToArray();
sample.NbrChannels = 1;
}
/*
if (sample.NbrChannels == 2)
{
MemoryStream ms = new MemoryStream();
for (int i = 0; i < soundData.Length - 4; i += 4)
{
ms.Write(soundData, i, 2);
}
soundData = ms.ToArray();
sample.NbrChannels = 1;
short[] sdata = new short[soundData.Length / 2];
Buffer.BlockCopy(soundData, 0, sdata, 0, soundData.Length);
soundData = new byte[sdata.Length * 2];
Buffer.BlockCopy(sdata, 0, soundData, 0, loopLength * 2);
}
if (sample.NbrChannels == 3)
{
short lowestValue = short.MaxValue;
int lowestValueSample = 0;
short[] sdata = new short[soundData.Length / 2];
Buffer.BlockCopy(soundData, 0, sdata, 0, soundData.Length);
for (int i = loopLength; i < loopLength + 20; i++)
{
if (Math.Abs(sdata[i]) < Math.Abs(lowestValue))
{
lowestValue = sdata[i];
lowestValueSample = i;
}
Debug.WriteLine(sdata[i]);
}
Debug.WriteLine("was " + loopLength + ", now " + lowestValueSample);
loopLength = lowestValueSample;
soundData = new byte[lowestValueSample * 2];
Buffer.BlockCopy(sdata, 0, soundData, 0, lowestValueSample * 2);
}*/
sample.PCMData = soundData;
Samples.Add(sample);
//WavWriter.Write(String.Format("c:\\temp\\test{0}.wav", headerIndex),
// nbrSamples, channels, soundData);
}
private void ReadSample(BinaryReader reader, int sampleIndex)
{
BnkSample sample = new BnkSample();
reader.BaseStream.Position += 0x28;
string id = new string(reader.ReadChars(4));
sample.SampleRate = reader.ReadInt32();
byte bytesPerSample = reader.ReadByte();
sample.NbrChannels = reader.ReadByte();
byte compression = reader.ReadByte();
byte type = reader.ReadByte();
int totalLength = reader.ReadInt32();
sample.LoopStart = reader.ReadInt32();
int loopLength = reader.ReadInt32();
int dataOffset = reader.ReadInt32();
int unk3 = reader.ReadInt32();
// HACKS to avoid popping sounds.. Not sure why we need to do this.. maybe NFS finds values near
// loop start/end which are the best match
//if (_filename == "SUPRA_SW.bnk" && sampleIndex == 0)
// loopLength += 10;
//Debug.WriteLine(String.Format("{0}: sampleRate:{5} bps: {1} loopStart: {2} loopLen: {3} totalLen: {4}, offset: {6}, channels: {7}",
// headerIndex, bytesPerSample, sample.LoopStart, loopLength, sample.NbrSamples, sample.SampleRate, dataOffset, sample.NbrChannels));
reader.BaseStream.Position = dataOffset + (bytesPerSample * sample.NbrChannels * sample.LoopStart);
sample.NbrSamples = loopLength == 0 ? totalLength : loopLength;
byte[] soundData = reader.ReadBytes(bytesPerSample * sample.NbrChannels * sample.NbrSamples);
if (bytesPerSample == 1) //convert 8 bit signed PCM data to unsigned
{
for (int i = 0; i < soundData.Length; i++)
{
soundData[i] = (byte)(soundData[i] + 0x80);
}
}
if (ForceMono && sample.NbrChannels == 2)
{
MemoryStream ms = new MemoryStream();
for (int i = 0; i < soundData.Length; i += bytesPerSample * 2)
{
ms.Write(soundData, i, bytesPerSample);
}
soundData = ms.ToArray();
sample.NbrChannels = 1;
}
/*
* if (sample.NbrChannels == 2)
* {
* MemoryStream ms = new MemoryStream();
* for (int i = 0; i < soundData.Length - 4; i += 4)
* {
* ms.Write(soundData, i, 2);
* }
* soundData = ms.ToArray();
* sample.NbrChannels = 1;
*
* short[] sdata = new short[soundData.Length / 2];
* Buffer.BlockCopy(soundData, 0, sdata, 0, soundData.Length);
* soundData = new byte[sdata.Length * 2];
* Buffer.BlockCopy(sdata, 0, soundData, 0, loopLength * 2);
* }
*
* if (sample.NbrChannels == 3)
* {
* short lowestValue = short.MaxValue;
* int lowestValueSample = 0;
* short[] sdata = new short[soundData.Length / 2];
* Buffer.BlockCopy(soundData, 0, sdata, 0, soundData.Length);
* for (int i = loopLength; i < loopLength + 20; i++)
* {
* if (Math.Abs(sdata[i]) < Math.Abs(lowestValue))
* {
* lowestValue = sdata[i];
* lowestValueSample = i;
* }
* Debug.WriteLine(sdata[i]);
* }
* Debug.WriteLine("was " + loopLength + ", now " + lowestValueSample);
* loopLength = lowestValueSample;
* soundData = new byte[lowestValueSample * 2];
* Buffer.BlockCopy(sdata, 0, soundData, 0, lowestValueSample * 2);
* }*/
sample.PCMData = soundData;
Samples.Add(sample);
//WavWriter.Write(String.Format("c:\\temp\\test{0}.wav", headerIndex),
// nbrSamples, channels, soundData);
}
