public static int CountWaveSamples(string sWavInput)
{
CCountWaveSamples counter = new CCountWaveSamples();
CWavStreamReader.StreamThroughWaveFile(sWavInput, counter);
int nSamples = counter.GetCount();
if (nSamples <= 0)
{
throw new WavCutException("Error, could not read samples");
}
return(nSamples);
}
static void testpassthrough()
{
string sWav = "--test.wav";
int nSamples = CCountWaveSamples.CountWaveSamples(sWav);
if (!File.Exists(sWav))
{
throw new WavCutException("File does not exist.");
}
Console.WriteLine("samples: " + nSamples);
//CWaveWrite wrt = new CWaveWrite("--testout.wav",0,nSamples);
CWaveWrite wrt = new CWaveWrite(".", 99, nSamples);
CTestPassThrough cpass = new CTestPassThrough(wrt);
CWavStreamReader.StreamThroughWaveFile(sWav, cpass);
wrt.Save();
}
private void StartWavCut(string sTxtInput, string sWavInput, string sOut)
{
if (!File.Exists(sTxtInput) || !File.Exists(sWavInput))
{
throw new WavCutException("File does not exist.");
}
string[] arLines = File.ReadAllLines(sTxtInput);
if (arLines == null || arLines.Length < 3)
{
throw new WavCutException("not enough lines");
}
if (arLines[0] == "wavcut")
{
}
else if (arLines[0] == "wavfindsilence")
{
CWavcutFindSilence.FindSilence(sWavInput, arLines);
return;
}
else
{
throw new WavCutException("The first line of the input text file should be wavcut, see trombone.txt");
}
// read input file
List <int> arOffsets = new List <int>();
int nPrevframe = 0;
for (int i = 1; i < arLines.Length; i++)
{
int nFrame;
if (arLines[i] == "" || arLines[i] == null)
{
continue;
}
if (arLines[i].Contains("."))
{
throw new WavCutException("We don't support decimals");
}
if (!int.TryParse(arLines[i], out nFrame))
{
throw new WavCutException("Line" + (i + 1) + " could not parse int");
}
arOffsets.Add(nFrame);
if (nFrame <= nPrevframe)
{
throw new WavCutException("samples must be increasing");
}
nPrevframe = nFrame;
}
if (arOffsets.Count <= 0)
{
throw new WavCutException("Error, no points given");
}
// count number of samples
int nSamples = CCountWaveSamples.CountWaveSamples(sWavInput);
arOffsets.Add(nSamples);
// construct objects that specify the intervals
List <WaveSegment> arSegments = new List <WaveSegment>();
for (int i = 0; i < arOffsets.Count; i++)
{
if (nSamples <= arOffsets[i] && i < arOffsets.Count - 1)
{
throw new WavCutException("Error, offset is greater than length of file");
}
int length = (i == 0) ? arOffsets[i] : arOffsets[i] - arOffsets[i - 1];
Console.WriteLine("track " + i + " length(s) " + length / 44100.0);
WaveSegment seg = new WaveSegment();
seg.m_writer = new CWaveWrite(sOut, i, length);
seg.m_nStopPoint = arOffsets[i];
arSegments.Add(seg);
}
// stream through the audio
CCutWaveProcessor processor = new CCutWaveProcessor(arSegments);
CWavStreamReader.StreamThroughWaveFile(sWavInput, processor);
if (nSamples != processor.GetNumberSamplesSeen())
{
Console.WriteLine("Warning, processor did not see all samples.");
}
// save files and close file handles.
for (int i = 0; i < arSegments.Count; i++)
{
arSegments[i].m_writer.Save();
}
}