public static float[] DecodeUsingMplayer(string fileIn, int srate)
{
lock (_locker) {
using (Process towav = new Process())
{
fileIn = Regex.Replace(fileIn, "%20", " ");
DbgTimer t = new DbgTimer();
t.Start();
String curdir = System.Environment.CurrentDirectory;
Dbg.WriteLine("Decoding: " + fileIn);
String tempFile = System.IO.Path.GetTempFileName();
String wav = tempFile + ".wav";
Dbg.WriteLine("Temporary wav file: " + wav);
towav.StartInfo.FileName = "./NativeLibraries\\mplayer\\mplayer.exe";
towav.StartInfo.Arguments = " -quiet -ao pcm:fast:waveheader \"" + fileIn + "\" -format floatle -af resample=" + srate + ":0:2,pan=1:0.5:0.5 -channels 1 -vo null -vc null -ao pcm:file=\\\"" + wav + "\\\"";
towav.StartInfo.UseShellExecute = false;
towav.StartInfo.RedirectStandardOutput = true;
towav.StartInfo.RedirectStandardError = true;
towav.Start();
towav.WaitForExit();
int exitCode = towav.ExitCode;
// 0 = succesfull
// 1 = partially succesful
// 2 = failed
if (exitCode != 0)
{
string standardError = towav.StandardError.ReadToEnd();
Console.Out.WriteLine(standardError);
return(null);
}
#if DEBUG
string standardOutput = towav.StandardOutput.ReadToEnd();
Console.Out.WriteLine(standardOutput);
#endif
RiffRead riff = new RiffRead(wav);
riff.Process();
float[] floatBuffer = riff.SoundData[0];
try
{
File.Delete(tempFile);
//File.Delete(wav);
}
catch (IOException io)
{
Console.WriteLine(io);
}
Dbg.WriteLine("Decoding Execution Time: " + t.Stop().TotalMilliseconds + " ms");
return(floatBuffer);
}
}
}
public static double[][] ReadWaveFile(String wavfile, ref int channels, ref int samplecount, ref int samplerate)
{
RiffRead riffRead = new RiffRead(wavfile);
riffRead.Process();
channels = riffRead.Channels;
samplecount = riffRead.SampleCount;
samplerate = riffRead.SampleRate;
return(riffRead.SoundData);
}