private void playBtn_Click(object sender, EventArgs e)
{
richTextBox1.Text = "Playing audio \n";
wavFile newWav = new wavFile();
newWav.RIFF = wave.RIFF;
newWav.WAVE = wave.WAVE;
newWav.fmt = wave.fmt;
newWav.fmt_size = wave.fmt_size;
newWav.format_tag = wave.format_tag;
newWav.nchannels = wave.nchannels;
newWav.samples_per_sec = wave.samples_per_sec;
newWav.avg_bytes_per_sec = wave.avg_bytes_per_sec;
newWav.nblock_align = wave.nblock_align;
newWav.bits_per_sample = wave.bits_per_sample;
newWav.data_size = samples.Length * newWav.nchannels * newWav.bits_per_sample / 8;
newWav.filesize_minus_4 = newWav.data_size / 2 + 36;
byte[] riff = BitConverter.GetBytes(newWav.RIFF);
byte[] minus4 = BitConverter.GetBytes(newWav.filesize_minus_4);
byte[] bWave = BitConverter.GetBytes(newWav.WAVE);
byte[] fmt = BitConverter.GetBytes(newWav.fmt);
byte[] fmt_size = BitConverter.GetBytes(newWav.fmt_size);
byte[] format_tag = BitConverter.GetBytes(newWav.format_tag);
byte[] nchannels = BitConverter.GetBytes(newWav.nchannels);
byte[] samplerate = BitConverter.GetBytes(newWav.samples_per_sec);
byte[] byterate = BitConverter.GetBytes(newWav.avg_bytes_per_sec);
byte[] nblock = BitConverter.GetBytes(newWav.nblock_align);
byte[] bitspersamp = BitConverter.GetBytes(newWav.bits_per_sample);
byte[] dataid = Encoding.ASCII.GetBytes("data");
byte[] subch2 = BitConverter.GetBytes(newWav.data_size);
//turn data into bytes
short[] shortArr = new short[samples.Length];
for (int i = 0; i < samples.Length; i++)
{
shortArr[i] = (short)samples[i];
}
byte[] byteStream = new byte[shortArr.Length * sizeof(short)];
Buffer.BlockCopy(shortArr, 0, byteStream, 0, samples.Length * sizeof(short));
////byte[] byteStream = BitConverter.GetBytes(shortArr*);
//
////Get total amount of bytes
int length = riff.Length + minus4.Length + bWave.Length +
fmt.Length + fmt_size.Length +
format_tag.Length + nchannels.Length +
samplerate.Length + byterate.Length +
nblock.Length + bitspersamp.Length +
dataid.Length + subch2.Length + byteStream.Length;
byte[] audioStream = new byte[length];
//
Buffer.BlockCopy(riff, 0, audioStream, 0, 4);
Buffer.BlockCopy(minus4, 0, audioStream, 4, 4);
Buffer.BlockCopy(bWave, 0, audioStream, 8, 4);
Buffer.BlockCopy(fmt, 0, audioStream, 12, 4);
Buffer.BlockCopy(fmt_size, 0, audioStream, 16, 4);
Buffer.BlockCopy(format_tag, 0, audioStream, 20, 2);
Buffer.BlockCopy(nchannels, 0, audioStream, 22, 2);
Buffer.BlockCopy(samplerate, 0, audioStream, 24, 4);
Buffer.BlockCopy(byterate, 0, audioStream, 28, 4);
Buffer.BlockCopy(nblock, 0, audioStream, 32, 2);
Buffer.BlockCopy(bitspersamp, 0, audioStream, 34, 2);
Buffer.BlockCopy(dataid, 0, audioStream, 36, 4);
Buffer.BlockCopy(subch2, 0, audioStream, 40, 4);
Buffer.BlockCopy(byteStream, 0, audioStream, 44, byteStream.Length);
richTextBox1.Text += "Created byte audio \n";
using (MemoryStream ms = new MemoryStream(audioStream))
{
richTextBox1.Text += "Starting audio now";
player = new SoundPlayer();
player.Stream = ms;
player.Load();
player.PlaySync();
}
}
/// <summary>
/// Function to do the saving portion into a file
/// </summary>
/// <param name="filePath">The filepath a user has selected</param>
public void save(string filePath)
{
FileStream fileStream = new FileStream(filePath, FileMode.Create);
BinaryWriter writer = new BinaryWriter(fileStream);
wavFile newWav = new wavFile();
newWav.RIFF = wave.RIFF;
newWav.WAVE = wave.WAVE;
newWav.fmt = wave.fmt;
newWav.fmt_size = wave.fmt_size;
newWav.format_tag = wave.format_tag;
newWav.nchannels = wave.nchannels;
newWav.samples_per_sec = wave.samples_per_sec;
newWav.avg_bytes_per_sec = wave.avg_bytes_per_sec;
newWav.nblock_align = wave.nblock_align;
newWav.bits_per_sample = wave.bits_per_sample;
newWav.data_size = samples.Length * newWav.nchannels * newWav.bits_per_sample / 8;
newWav.filesize_minus_4 = newWav.data_size / 2 + 36;
//newWav.data = sSamples;
richTextBox1.Text += "Done converting iSamples";
//Writing
writer.Write('R');
writer.Write('I');
writer.Write('F');
writer.Write('F');
writer.Write(newWav.filesize_minus_4);
writer.Write(newWav.WAVE);
writer.Write('f');
writer.Write('m');
writer.Write('t');
writer.Write(' ');
writer.Write(newWav.fmt_size);
writer.Write(newWav.format_tag);
writer.Write(newWav.nchannels);
writer.Write(newWav.samples_per_sec);
writer.Write(newWav.avg_bytes_per_sec);
writer.Write(newWav.nblock_align);
writer.Write(newWav.bits_per_sample);
string data = "data";
writer.Write(data.ToCharArray());
writer.Write(newWav.data_size);
//Needs to convert to short if it is 2bytes long
short[] sSamples = new short[samples.Length];
for (int i = 0; i < sSamples.Length; i++)
{
sSamples[i] = (short)samples[i];
}
byte[] byteStream = new byte[sSamples.Length * 2];
Buffer.BlockCopy(sSamples, 0, byteStream, 0, byteStream.Length);
//Writing the data bytes
foreach (byte dataPoint in byteStream)
{
writer.Write(dataPoint);
}
//writer.Seek(4, SeekOrigin.Begin);
//uint filesize = (uint)writer.BaseStream.Length;
//writer.Write(filesize - 8);
writer.Close();
fileStream.Close();
richTextBox1.Text += "Completed saving file.";
}
