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1 /* Copyright Chris Cannam - All Rights Reserved */
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2
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3 package com.breakfastquay.rubberband;
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4
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5 public class RubberBandStretcher
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6 {
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7 public RubberBandStretcher(int sampleRate, int channels,
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8 int options,
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9 double initialTimeRatio,
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10 double initialPitchScale) {
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11 handle = 0;
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12 initialise(sampleRate, channels, options,
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13 initialTimeRatio, initialPitchScale);
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14 }
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15
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16 public native void dispose();
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17
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18 public native void reset();
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19
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20 public native void setTimeRatio(double ratio);
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21 public native void setPitchScale(double scale);
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22
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23 public native int getChannelCount();
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24 public native double getTimeRatio();
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25 public native double getPitchScale();
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26
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27 public native int getLatency();
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28
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29 public native void setTransientsOption(int options);
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30 public native void setDetectorOption(int options);
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31 public native void setPhaseOption(int options);
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32 public native void setFormantOption(int options);
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33 public native void setPitchOption(int options);
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34
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35 public native void setExpectedInputDuration(long samples);
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36 public native void setMaxProcessSize(int samples);
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37
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38 public native int getSamplesRequired();
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39
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40 //!!! todo: setKeyFrameMap
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41
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42 public native void study(float[][] input, int offset, int n, boolean finalBlock);
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43 public void study(float[][] input, boolean finalBlock) {
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44 study(input, 0, input[0].length, finalBlock);
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45 }
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46
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47 public native void process(float[][] input, int offset, int n, boolean finalBlock);
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48 public void process(float[][] input, boolean finalBlock) {
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49 process(input, 0, input[0].length, finalBlock);
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50 }
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51
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52 public native int available();
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53
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54 public native int retrieve(float[][] output, int offset, int n);
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55 public int retrieve(float[][] output) {
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56 return retrieve(output, 0, output[0].length);
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57 }
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58
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59 private native void initialise(int sampleRate, int channels, int options,
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60 double initialTimeRatio,
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61 double initialPitchScale);
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62 private long handle;
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63
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64 public static final int OptionProcessOffline = 0x00000000;
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65 public static final int OptionProcessRealTime = 0x00000001;
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66
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67 public static final int OptionStretchElastic = 0x00000000;
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68 public static final int OptionStretchPrecise = 0x00000010;
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69
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70 public static final int OptionTransientsCrisp = 0x00000000;
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71 public static final int OptionTransientsMixed = 0x00000100;
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72 public static final int OptionTransientsSmooth = 0x00000200;
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73
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74 public static final int OptionDetectorCompound = 0x00000000;
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75 public static final int OptionDetectorPercussive = 0x00000400;
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76 public static final int OptionDetectorSoft = 0x00000800;
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77
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78 public static final int OptionPhaseLaminar = 0x00000000;
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79 public static final int OptionPhaseIndependent = 0x00002000;
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80
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81 public static final int OptionThreadingAuto = 0x00000000;
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82 public static final int OptionThreadingNever = 0x00010000;
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83 public static final int OptionThreadingAlways = 0x00020000;
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84
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85 public static final int OptionWindowStandard = 0x00000000;
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86 public static final int OptionWindowShort = 0x00100000;
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87 public static final int OptionWindowLong = 0x00200000;
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88
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89 public static final int OptionSmoothingOff = 0x00000000;
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90 public static final int OptionSmoothingOn = 0x00800000;
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91
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92 public static final int OptionFormantShifted = 0x00000000;
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93 public static final int OptionFormantPreserved = 0x01000000;
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94
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95 public static final int OptionPitchHighSpeed = 0x00000000;
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96 public static final int OptionPitchHighQuality = 0x02000000;
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97 public static final int OptionPitchHighConsistency = 0x04000000;
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98
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99 public static final int OptionChannelsApart = 0x00000000;
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100 public static final int OptionChannelsTogether = 0x10000000;
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101
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102 public static final int DefaultOptions = 0x00000000;
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103 public static final int PercussiveOptions = 0x00102000;
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104
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105 static {
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106 System.loadLibrary("rubberband");
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107 }
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108 };
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109
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