public static Wave FromArray(byte[] Bytes)
{
Wave Result = new Wave();
byte[] FileBytes = Bytes;
if (Bytes.Length == 0)
return Result;
try
{
Result.FileHeader.ChunkID = GetDataFromByteArray(FileBytes, 0, 0, 4);
Result.FileHeader.ChunkSize = BitConverter.ToUInt32(FileBytes, 4);
Result.FileHeader.Format = GetDataFromByteArray(FileBytes, 0, 8, 4);
Result.FileFormatSubChunk.Subchunk1ID = GetDataFromByteArray(FileBytes, 0, 12, 4);
Result.FileFormatSubChunk.Subchunk1Size = BitConverter.ToUInt32(FileBytes, 16);
Result.FileFormatSubChunk.AudioFormat = BitConverter.ToUInt16(FileBytes, 20);
Result.FileFormatSubChunk.NumChannels = BitConverter.ToUInt16(FileBytes, 22);
Result.FileFormatSubChunk.SampleRate = BitConverter.ToUInt32(FileBytes, 24);
Result.FileFormatSubChunk.ByteRate = BitConverter.ToUInt32(FileBytes, 28);
Result.FileFormatSubChunk.BlockAlign = BitConverter.ToUInt16(FileBytes, 32);
Result.FileFormatSubChunk.BitsPerSample = BitConverter.ToUInt16(FileBytes, 34);
Result.FileDataSubChunk.Subchunk2ID = GetDataFromByteArray(FileBytes, 0, 36, 4);
Result.FileDataSubChunk.Subchunk2Size = BitConverter.ToUInt32(FileBytes, 40);
Result.FileDataSubChunk.Data = GetDataFromByteArray(FileBytes, 0, 44, Result.FileDataSubChunk.Subchunk2Size);
return Result;
}
catch
{
Result = new Wave();
return Result;
}
}
public static Wave FromFile(string FileName)
{
Wave Result = new Wave();
if (!File.Exists(FileName))
return Result;
byte[] FileBytes = File.ReadAllBytes(FileName);
try
{
Result.FileHeader.ChunkID = GetDataFromByteArray(FileBytes, 0, 0, 4);
Result.FileHeader.ChunkSize = BitConverter.ToUInt32(FileBytes, 4);
Result.FileHeader.Format = GetDataFromByteArray(FileBytes, 0, 8, 4);
Result.FileFormatSubChunk.Subchunk1ID = GetDataFromByteArray(FileBytes, 0, 12, 4);
Result.FileFormatSubChunk.Subchunk1Size = BitConverter.ToUInt32(FileBytes, 16);
Result.FileFormatSubChunk.AudioFormat = BitConverter.ToUInt16(FileBytes, 20);
Result.FileFormatSubChunk.NumChannels = BitConverter.ToUInt16(FileBytes, 22);
Result.FileFormatSubChunk.SampleRate = BitConverter.ToUInt32(FileBytes, 24);
Result.FileFormatSubChunk.ByteRate = BitConverter.ToUInt32(FileBytes, 28);
Result.FileFormatSubChunk.BlockAlign = BitConverter.ToUInt16(FileBytes, 32);
Result.FileFormatSubChunk.BitsPerSample = BitConverter.ToUInt16(FileBytes, 34);
Result.FileDataSubChunk.Subchunk2ID = GetDataFromByteArray(FileBytes, 0, 36, 4);
Result.FileDataSubChunk.Subchunk2Size = BitConverter.ToUInt32(FileBytes, 40);
Result.FileDataSubChunk.Data = GetDataFromByteArray(FileBytes, 0, 44, Result.FileDataSubChunk.Subchunk2Size);
return Result;
}
catch
{
return null;
}
}
/// <summary>
/// Load audio from a wave object
/// </summary>
/// <param name="Title">Title of the audio</param>
/// <param name="Author">Author of the audio</param>
/// <param name="WaveObject">Wave object</param>
/// <returns></returns>
public static Audio FromWave(string Title, string Author, Wave WaveObject)
{
return FromWave(Title, Author, "", WaveObject);
}
/// <summary>
/// Load audio from a wave object
/// </summary>
/// <param name="Title">Title of the audio</param>
/// <param name="Author">Author of the audio</param>
/// <param name="Comment">Comment to the audio</param>
/// <param name="WaveObject">Wave object</param>
/// <returns></returns>
public static Audio FromWave(string Title, string Author, string Comment, Wave WaveObject)
{
// Get speed
ushort speed = (ushort)WaveObject.FileFormatSubChunk.SampleRate;
// Allocate space for the samples
byte[] samples = new byte[WaveObject.FileDataSubChunk.Data.Length / WaveObject.FileFormatSubChunk.NumChannels];
// Allocate counter variables
uint sourceSample = 0;
uint targetSample = 0;
byte byteOfSample = 0;
// Copy over samples (only channel 0 - ignoring other channels)
while (targetSample < samples.Length) {
samples[targetSample] = WaveObject.FileDataSubChunk.Data[sourceSample]; // copy wave sample over
targetSample++; // advance target pointer
if (byteOfSample == 0) {
sourceSample++; // advance source pointer
byteOfSample++; // advance byte of sample pointer
} else {
sourceSample += (ushort)((WaveObject.FileFormatSubChunk.NumChannels - 1) * 2 + 1); // 1 channel (mono) is output, therefore skip all samples of the other channels
byteOfSample = 0; // reset byte of sample pointer and start with the next sample
}
}
// Return new audio object
return new Audio(Title, Author, Comment, speed, samples);
}
/// <summary>
/// Load audio from a wave object
/// </summary>
/// <param name="WaveObject">Wave object</param>
/// <returns></returns>
public static Audio FromWave(Wave WaveObject)
{
return FromWave("", "", WaveObject);
}
