plugins/parametric/parametric.h

   1 #ifndef PARAMETRIC_H
   2 #define PARAMETRIC_H
   3
   4
   5 #include "bchash.inc"
   6 #include "fourier.h"
   7 #include "guicast.h"
   8 #include "mutex.h"
   9 #include "pluginaclient.h"
  10 #include "vframe.inc"
  11
  12
  13 // This parametric EQ multiplies the data by a gaussian curve in frequency domain.
  14 // It causes significant delay but is useful.
  15
  16
  17 #define BANDS 3
  18 #define WINDOW_SIZE 16384
  19 #define MAXMAGNITUDE 15
  20
  21
  22
  23 class ParametricConfig;
  24 class ParametricThread;
  25 class ParametricFreq;
  26 class ParametricQuality;
  27 class ParametricMagnitude;
  28 class ParametricBandGUI;
  29 class ParametricWindow;
  30 class ParametricFFT;
  31 class ParametricEQ;
  32
  33
  34
  35
  36 class ParametricBand
  37 {
  38 public:
  39         ParametricBand();
  40
  41         int equivalent(ParametricBand &that);
  42         void copy_from(ParametricBand &that);
  43         void interpolate(ParametricBand &prev,
  44                 ParametricBand &next,
  45                 double prev_scale,
  46                 double next_scale);
  47
  48         enum
  49         {
  50                 NONE,
  51                 LOWPASS,
  52                 HIGHPASS,
  53                 BANDPASS
  54         };
  55
  56         int freq;
  57         float quality;
  58         float magnitude;
  59         int mode;
  60 };
  61
  62
  63 class ParametricConfig
  64 {
  65 public:
  66         ParametricConfig();
  67
  68         int equivalent(ParametricConfig &that);
  69         void copy_from(ParametricConfig &that);
  70         void interpolate(ParametricConfig &prev,
  71                 ParametricConfig &next,
  72                 int64_t prev_frame,
  73                 int64_t next_frame,
  74                 int64_t current_frame);
  75
  76         ParametricBand band[BANDS];
  77         float wetness;
  78 };
  79
  80
  81
  82
  83 PLUGIN_THREAD_HEADER(ParametricEQ, ParametricThread, ParametricWindow)
  84
  85
  86 class ParametricFreq : public BC_QPot
  87 {
  88 public:
  89         ParametricFreq(ParametricEQ *plugin, int x, int y, int band);
  90
  91         int handle_event();
  92
  93         int band;
  94         ParametricEQ *plugin;
  95 };
  96
  97
  98 class ParametricQuality : public BC_FPot
  99 {
 100 public:
 101         ParametricQuality(ParametricEQ *plugin, int x, int y, int band);
 102
 103         int handle_event();
 104
 105         int band;
 106         ParametricEQ *plugin;
 107 };
 108
 109
 110 class ParametricMagnitude : public BC_FPot
 111 {
 112 public:
 113         ParametricMagnitude(ParametricEQ *plugin, int x, int y, int band);
 114
 115         int handle_event();
 116
 117         int band;
 118         ParametricEQ *plugin;
 119 };
 120
 121
 122
 123
 124 class ParametricMode : public BC_PopupMenu
 125 {
 126 public:
 127         ParametricMode(ParametricEQ *plugin, int x, int y, int band);
 128
 129         void create_objects();
 130         int handle_event();
 131         static int text_to_mode(char *text);
 132         static char* mode_to_text(int mode);
 133
 134         int band;
 135         ParametricEQ *plugin;
 136 };
 137
 138
 139
 140
 141
 142 class ParametricBandGUI
 143 {
 144 public:
 145         ParametricBandGUI(ParametricEQ *plugin,
 146                 ParametricWindow *window,
 147                 int x,
 148                 int y,
 149                 int band);
 150         ~ParametricBandGUI();
 151
 152         void create_objects();
 153         void update_gui();
 154
 155         int band;
 156         int x, y;
 157         ParametricEQ *plugin;
 158         ParametricWindow *window;
 159         ParametricFreq *freq;
 160         ParametricQuality *quality;
 161         ParametricMagnitude *magnitude;
 162         ParametricMode *mode;
 163 };
 164
 165
 166
 167 class ParametricWetness : public BC_FPot
 168 {
 169 public:
 170         ParametricWetness(ParametricEQ *plugin, int x, int y);
 171         int handle_event();
 172         ParametricEQ *plugin;
 173 };
 174
 175
 176 class ParametricWindow : public BC_Window
 177 {
 178 public:
 179         ParametricWindow(ParametricEQ *plugin, int x, int y);
 180         ~ParametricWindow();
 181
 182         void create_objects();
 183         int close_event();
 184         void update_gui();
 185         void update_canvas();
 186
 187         BC_SubWindow *canvas;
 188         ParametricEQ *plugin;
 189         ParametricBandGUI* bands[BANDS];
 190         ParametricWetness *wetness;
 191 };
 192
 193 class ParametricFFT : public CrossfadeFFT
 194 {
 195 public:
 196         ParametricFFT(ParametricEQ *plugin);
 197         ~ParametricFFT();
 198
 199         int signal_process();
 200         int read_samples(int64_t output_sample,
 201                 int samples,
 202                 double *buffer);
 203
 204         ParametricEQ *plugin;
 205 };
 206
 207
 208 class ParametricEQ : public PluginAClient
 209 {
 210 public:
 211         ParametricEQ(PluginServer *server);
 212         ~ParametricEQ();
 213
 214         int is_realtime();
 215         void read_data(KeyFrame *keyframe);
 216         void save_data(KeyFrame *keyframe);
 217         int process_buffer(int64_t size,
 218                 double *buffer,
 219                 int64_t start_position,
 220                 int sample_rate);
 221
 222         int load_defaults();
 223         int save_defaults();
 224         void reset();
 225         void reconfigure();
 226         void update_gui();
 227
 228         double calculate_envelope();
 229         double gauss(double sigma, double a, double x);
 230
 231         double envelope[WINDOW_SIZE / 2];
 232         int need_reconfigure;
 233         PLUGIN_CLASS_MEMBERS(ParametricConfig, ParametricThread)
 234         ParametricFFT *fft;
 235 };
 236
 237
 238
 239 #endif