/// <summary> /// Get Settings from User Input or Config file /// </summary> /// <param name="bands">Specifies the desired height of the spectrogram (bands)</param> /// <param name="samplecount">Number of samples</param> /// <param name="samplerate">Sample rate</param> /// <param name="basefreq">Base frequency in Hertz</param> /// <param name="maxfreq">Maximum frequency in Hertz</param> /// <param name="pixpersec">Time resolution in Pixels Per Second</param> /// <param name="bandsperoctave">Frequency resolution in Bands Per Octave</param> /// <param name="Xsize">Specifies the desired width of the spectrogram</param> /// <param name="mode">0 = Analysis mode, 1 = Synthesis mode</param> public static void SettingsInput(ref int bands, ref int samplecount, ref int samplerate, ref double basefreq, ref double maxfreq, ref double pixpersec, ref double bandsperoctave, ref int Xsize, int mode) { /* mode : * 0 = Analysis mode * 1 = Synthesis mode */ int i = 0; double gf; double f; double trash; double ma; // maximum allowed frequency int unset = 0; // count of unset interdependant settings int set_min = 0; int set_max = 0; int set_bpo = 0; int set_y = 0; int set_pps = 0; int set_x = 0; #if DEBUG Console.Write("settingsinput...\n"); #endif // Path to the configuration file string configFileName = "arss.conf"; TextReader freqcfg = null; if (File.Exists(configFileName)) { freqcfg = new StreamReader(configFileName); } if (samplerate == 0) // if we're in synthesis mode and that no samplerate has been defined yet { if (GlobalMembersUtil.quiet) { Console.Error.WriteLine("Please provide a sample rate for your output sound.\nUse --sample-rate (-r).\nExiting with error.\n"); Environment.Exit(1); } //********Output settings querying******** Console.Write("Sample rate [44100] : "); // Query for a samplerate samplerate = (int)GlobalMembersUtil.GetFloat(); if (samplerate == 0 || samplerate < -2147483647) // The -2147483647 check is used for the sake of compatibility with C90 { samplerate = 44100; // Default value } //--------Output settings querying-------- } if (basefreq != 0) // count unset interdependant frequency-domain settings { set_min = 1; } if (maxfreq != 0) { set_max = 1; } if (bandsperoctave != 0) { set_bpo = 1; } if (bands != 0) { set_y = 1; } unset = set_min + set_max + set_bpo + set_y; if (unset == 4) // if too many settings are set { if (mode == 0) { Console.Error.WriteLine("You have set one parameter too many.\nUnset either --min-freq (-min), --max-freq (-max), --bpo (-b)\nExiting with error.\n"); } if (mode == 1) { Console.Error.WriteLine("You have set one parameter too many.\nUnset either --min-freq (-min), --max-freq (-max), --bpo (-b) or --height (-y)\nExiting with error.\n"); } Environment.Exit(1); } if (pixpersec != 0) { set_pps = 1; } if (Xsize != 0) { set_x = 1; } if (set_x + set_pps == 2 && mode == 0) { Console.Error.WriteLine("You cannot define both the image width and the horizontal resolution.\nUnset either --pps (-p) or --width (-x)\nExiting with error.\n"); Environment.Exit(1); } if (freqcfg != null) // load settings from file if it exists { if (basefreq == 0) // load values from it if they haven't been set yet { basefreq = double.Parse(freqcfg.ReadLine()); } else { trash = double.Parse(freqcfg.ReadLine()); } if (maxfreq == 0) { maxfreq = double.Parse(freqcfg.ReadLine()); } else { trash = double.Parse(freqcfg.ReadLine()); } if (bandsperoctave == 0) { bandsperoctave = double.Parse(freqcfg.ReadLine()); } else { trash = double.Parse(freqcfg.ReadLine()); } if (pixpersec == 0) { pixpersec = double.Parse(freqcfg.ReadLine()); } else { trash = double.Parse(freqcfg.ReadLine()); } } else { if (basefreq == 0) // otherwise load default values { basefreq = 27.5; } if (maxfreq == 0) { maxfreq = 20000; } if (bandsperoctave == 0) { bandsperoctave = 12; } if (pixpersec == 0) { pixpersec = 150; } } if (freqcfg != null) { freqcfg.Close(); } if (unset < 3 && set_min == 0) { if (GlobalMembersUtil.quiet) { Console.Error.WriteLine("Please define a minimum frequency.\nUse --min-freq (-min).\nExiting with error.\n"); Environment.Exit(1); } Console.Write("Min. frequency (Hz) [{0:f3}]: ", basefreq); gf = GlobalMembersUtil.GetFloat(); if (gf != 0) { basefreq = gf; } unset++; set_min = 1; } basefreq /= samplerate; // turn basefreq from Hz to fractions of samplerate if (unset < 3 && set_bpo == 0) { if (GlobalMembersUtil.quiet) { Console.Error.WriteLine("Please define a bands per octave setting.\nUse --bpo (-b).\nExiting with error.\n"); Environment.Exit(1); } Console.Write("Bands per octave [{0:f3}]: ", bandsperoctave); gf = GlobalMembersUtil.GetFloat(); if (gf != 0) { bandsperoctave = gf; } unset++; set_bpo = 1; } if (unset < 3 && set_max == 0) { i = 0; do { i++; f = basefreq * Math.Pow(GlobalMembersDsp.LOGBASE, (i / bandsperoctave)); }while (f < 0.5); ma = basefreq * Math.Pow(GlobalMembersDsp.LOGBASE, ((i - 2) / bandsperoctave)) * samplerate; // max allowed frequency if (maxfreq > ma) { if (GlobalMembersUtil.FMod(ma, 1.0) == 0.0) { maxfreq = ma; // replaces the "Upper frequency limit above Nyquist frequency" warning } else { maxfreq = ma - GlobalMembersUtil.FMod(ma, 1.0); } } if (mode == 0) // if we're in Analysis mode { if (GlobalMembersUtil.quiet) { Console.Error.WriteLine("Please define a maximum frequency.\nUse --max-freq (-max).\nExiting with error.\n"); Environment.Exit(1); } Console.Write("Max. frequency (Hz) (up to {0:f3}) [{1:f3}]: ", ma, maxfreq); gf = GlobalMembersUtil.GetFloat(); if (gf != 0) { maxfreq = gf; } if (maxfreq > ma) { if (GlobalMembersUtil.FMod(ma, 1.0) == 0.0) { maxfreq = ma; // replaces the "Upper frequency limit above Nyquist frequency" warning } else { maxfreq = ma - GlobalMembersUtil.FMod(ma, 1.0); } } } unset++; set_max = 1; } if (set_min == 0) { basefreq = Math.Pow(GlobalMembersDsp.LOGBASE, (bands - 1) / bandsperoctave) * maxfreq; // calculate the lower frequency in Hz Console.Write("Min. frequency : {0:f3} Hz\n", basefreq); basefreq /= samplerate; } if (set_max == 0) { maxfreq = Math.Pow(GlobalMembersDsp.LOGBASE, (bands - 1) / bandsperoctave) * (basefreq * samplerate); // calculate the upper frequency in Hz Console.Write("Max. frequency : {0:f3} Hz\n", maxfreq); } if (set_y == 0) { bands = 1 + (int)GlobalMembersUtil.RoundOff(bandsperoctave * (GlobalMembersUtil.Log(maxfreq) - GlobalMembersUtil.Log(basefreq * samplerate))); Console.Write("Bands : {0:D}\n", bands); } if (set_bpo == 0) { if (GlobalMembersDsp.LOGBASE == 1.0) { bandsperoctave = maxfreq / samplerate; } else { bandsperoctave = (bands - 1) / (GlobalMembersUtil.Log(maxfreq) - GlobalMembersUtil.Log(basefreq * samplerate)); } Console.Write("Bands per octave : {0:f3}\n", bandsperoctave); } if (set_x == 1 && mode == 0) // If we're in Analysis mode and that X is set (by the user) { pixpersec = (double)Xsize * (double)samplerate / (double)samplecount; // calculate pixpersec Console.Write("Pixels per second : {0:f3}\n", pixpersec); } if ((mode == 0 && set_x == 0 && set_pps == 0) || (mode == 1 && set_pps == 0)) // If in Analysis mode none are set or pixpersec isn't set in Synthesis mode { if (GlobalMembersUtil.quiet) { Console.Error.WriteLine("Please define a pixels per second setting.\nUse --pps (-p).\nExiting with error.\n"); Environment.Exit(1); } Console.Write("Pixels per second [{0:f3}]: ", pixpersec); gf = GlobalMembersUtil.GetFloat(); if (gf != 0) { pixpersec = gf; } } basefreq *= samplerate; // turn back to Hz just for the sake of writing to the file TextWriter freqcfgOut = new StreamWriter(configFileName); // saving settings to a file if (freqcfgOut == null) { Console.Error.WriteLine("Cannot write to configuration file"); Environment.Exit(1); } freqcfgOut.WriteLine(basefreq); freqcfgOut.WriteLine(maxfreq); freqcfgOut.WriteLine(bandsperoctave); freqcfgOut.WriteLine(pixpersec); freqcfgOut.Close(); basefreq /= samplerate; // basefreq is now in fraction of the sampling rate instead of Hz pixpersec /= samplerate; // pixpersec is now in fraction of the sampling rate instead of Hz }