private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
int startPos = (int)numericStartPos.Value;
int outputSamples = (int)numericOutputSamples.Value;
string path = textBoxReadWavFile.Text;
WavData wavData = new WavData();
Console.WriteLine(rm.GetString("ReadFileStarted"), path);
using (BinaryReader br1 = new BinaryReader(File.Open(path, FileMode.Open))) {
if (!wavData.Read(br1))
{
resultString = string.Format(rm.GetString("ReadFileFailFormat"), path) + "\r\n";
e.Result = false;
return;
}
if (wavData.NumSamples < startPos + outputSamples)
{
resultString = string.Format(rm.GetString("WavFileTooShort"), startPos + outputSamples, wavData.NumSamples, path) + "\r\n";
e.Result = false;
return;
}
}
Console.WriteLine(rm.GetString("WavFileSummary"), wavData.NumSamples);
resultString += string.Format(rm.GetString("WavFileSummary"), wavData.NumSamples);
double offset = (double)numericUpDownSubSampleOffset.Value;
if (checkBoxCh0.Checked && !checkBoxCh1.Checked)
{
using (StreamWriter sw = new StreamWriter(textBoxWriteFile.Text)) {
for (int i = startPos; i < startPos + outputSamples; ++i)
{
sw.WriteLine("{0} {1}", i + offset, wavData.Sample16Get(0, i));
}
}
}
else if (!checkBoxCh0.Checked && checkBoxCh1.Checked)
{
using (StreamWriter sw = new StreamWriter(textBoxWriteFile.Text)) {
for (int i = startPos; i < startPos + outputSamples; ++i)
{
sw.WriteLine("{0} {1}", i + offset, wavData.Sample16Get(1, i));
}
}
}
else if (checkBoxCh0.Checked && checkBoxCh1.Checked)
{
using (StreamWriter sw = new StreamWriter(textBoxWriteFile.Text)) {
for (int i = startPos; i < startPos + outputSamples; ++i)
{
sw.WriteLine("{0} {1} {2}", i + offset, wavData.Sample16Get(0, i), wavData.Sample16Get(1, i));
}
}
}
e.Result = true;
}
private void Effect(WavData wavData)
{
if (checkBoxInvert.Checked)
{
for (int ch = 0; ch < wavData.NumChannels; ++ch)
{
for (int pos = 0; pos < wavData.NumSamples; ++pos)
{
short val = wavData.Sample16Get(ch, pos);
// Invert! we want to do this effect
val = (short)-val;
wavData.Sample16Set(ch, pos, val);
}
}
}
}
static void Main(string[] args)
{
OptionInfo optionInfo = new OptionInfo(2);
ParseOptions(ref optionInfo, args);
WavData ch0Wav = ReadWavFromFile(optionInfo.channels[0].chFileName);
WavData ch1Wav = ReadWavFromFile(optionInfo.channels[1].chFileName);
if (ch0Wav.NumSamples != ch1Wav.NumSamples)
{
Console.WriteLine("E: NumSamples mismatch. ch0.numSamples={0}, ch1.numSamples={1}",
ch0Wav.NumSamples, ch1Wav.NumSamples);
PrintUsageAndExit();
}
WavData writeWav = new WavData();
List <PcmSamples1Channel> channels = new List <PcmSamples1Channel>();
for (int i = 0; i < 2; ++i)
{
channels.Add(new PcmSamples1Channel(ch0Wav.NumSamples, ch0Wav.BitsPerSample));
}
int ch0UseCh = optionInfo.channels[0].chFileUseCh;
int ch1UseCh = optionInfo.channels[1].chFileUseCh;
for (int i = 0; i < ch0Wav.NumSamples; ++i)
{
channels[0].Set16(i, ch0Wav.Sample16Get(ch0UseCh, i));
channels[1].Set16(i, ch1Wav.Sample16Get(ch1UseCh, i));
}
writeWav.Create(ch0Wav.SampleRate, ch0Wav.BitsPerSample, channels);
try {
using (BinaryWriter bw = new BinaryWriter(File.Open(optionInfo.outputWavFileName, FileMode.CreateNew))) {
writeWav.Write(bw);
}
} catch (Exception ex) {
Console.WriteLine("E: {0}", ex);
PrintUsageAndExit();
}
}
private void Effect(WavData wavData)
{
if (checkBoxInvert.Checked) {
for (int ch=0; ch < wavData.NumChannels; ++ch) {
for (int pos=0; pos < wavData.NumSamples; ++pos) {
short val = wavData.Sample16Get(ch, pos);
// Invert! we want to do this effect
val = (short)-val;
wavData.Sample16Set(ch, pos, val);
}
}
}
}
/** @param delay_return [out] (0 < delay_return) w1 is delayed by delay samples
* (delay_return < 0) w2 is delayed by delay samples
* @param w1w2VolumeRatio_return [out] >1: w1 volume is larger than w2, <1: w1 volume is smaller than w2
*/
private bool SampleDelay(WavData w1, WavData w2, out int delay_return, out double w1w2VolumeRatio_return)
{
float ACCUMULATE_SECONDS_MAX = (float)numericAccumulateSeconds.Value;
float DELAY_SECONDS_MAX = (float)numericStartDelayTorelance.Value;
delay_return = 0;
SortedDictionary <long, VolumeInfo> delayValueAndPos =
new SortedDictionary <long, VolumeInfo>();
int samplesPerSecond = w1.SampleRate;
/* assume w1 is delayed (0 < delay) */
for (int delay = 0; delay < samplesPerSecond * DELAY_SECONDS_MAX; ++delay)
{
VolumeInfo vi = new VolumeInfo();
vi.delay = delay;
for (int pos = 0; pos < samplesPerSecond * ACCUMULATE_SECONDS_MAX; ++pos)
{
int w1Value = Math.Abs(w1.Sample16Get(0, pos));
int w2Value = Math.Abs(w2.Sample16Get(0, pos + delay));
vi.w1Volume += w1Value;
vi.w2Volume += w2Value;
vi.accumulatedDiff += Math.Abs(w1Value - w2Value);
}
// Console.Write("[{0} {1}]", delay, acc);
if (!delayValueAndPos.ContainsKey(vi.accumulatedDiff))
{
delayValueAndPos[vi.accumulatedDiff] = vi;
}
backgroundWorker1.ReportProgress(delay * 50 / (int)(samplesPerSecond * DELAY_SECONDS_MAX));
}
/* assume w2 is delayed (delay < 0) */
for (int delay = 1; delay < samplesPerSecond * DELAY_SECONDS_MAX; ++delay)
{
VolumeInfo vi = new VolumeInfo();
vi.delay = -delay;
for (int pos = 0; pos < samplesPerSecond * ACCUMULATE_SECONDS_MAX; ++pos)
{
int w1Value = Math.Abs(w1.Sample16Get(0, pos + delay));
int w2Value = Math.Abs(w2.Sample16Get(0, pos));
vi.w1Volume += w1Value;
vi.w2Volume += w2Value;
vi.accumulatedDiff += Math.Abs(w1Value - w2Value);
}
// Console.Write("[{0} {1}]", -delay, acc);
if (!delayValueAndPos.ContainsKey(vi.accumulatedDiff))
{
delayValueAndPos[vi.accumulatedDiff] = vi;
}
backgroundWorker1.ReportProgress(50 + delay * 50 / (int)(samplesPerSecond * DELAY_SECONDS_MAX));
}
SortedDictionary <long, VolumeInfo> .Enumerator e = delayValueAndPos.GetEnumerator();
e.MoveNext();
w1w2VolumeRatio_return = (double)e.Current.Value.w1Volume / e.Current.Value.w2Volume;
delay_return = e.Current.Value.delay;
Console.WriteLine();
Console.WriteLine(rm.GetString("SampleDelaySummary"),
delay_return, (double)delay_return / samplesPerSecond,
(double)e.Current.Key / (samplesPerSecond * DELAY_SECONDS_MAX),
w1w2VolumeRatio_return);
if (w1w2VolumeRatio_return < 0.5 || 2.0 < w1w2VolumeRatio_return)
{
return(false);
}
return(true);
}
