cinelerra-5.1/plugins/timestretchrt/timestretchrt.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2011 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "bcdisplayinfo.h"
  23 #include "bchash.h"
  24 #include "filexml.h"
  25 #include "language.h"
  26 #include "theme.h"
  27 #include "../timestretch/timestretchengine.h"
  28 #include "timestretchrt.h"
  29 #include "transportque.h"
  30
  31 #include <string.h>
  32
  33
  34
  35
  36
  37
  38
  39 REGISTER_PLUGIN(TimeStretchRT);
  40
  41
  42
  43 TimeStretchRTConfig::TimeStretchRTConfig()
  44 {
  45 //      scale = 1;
  46         num = 1;
  47         denom = 1;
  48         size = 40;
  49 }
  50
  51
  52 int TimeStretchRTConfig::equivalent(TimeStretchRTConfig &src)
  53 {
  54 //      return fabs(scale - src.scale) < 0.0001 && size == src.size;
  55         return fabs(num - src.num) < 0.0001 &&
  56                 fabs(denom - src.denom) < 0.0001 &&
  57                 size == src.size;
  58 }
  59
  60 void TimeStretchRTConfig::copy_from(TimeStretchRTConfig &src)
  61 {
  62         this->num = src.num;
  63         this->denom = src.denom;
  64 //      this->scale = src.scale;
  65         this->size = src.size;
  66 }
  67
  68 void TimeStretchRTConfig::interpolate(TimeStretchRTConfig &prev,
  69         TimeStretchRTConfig &next,
  70         int64_t prev_frame,
  71         int64_t next_frame,
  72         int64_t current_frame)
  73 {
  74         this->num = prev.num;
  75         this->denom = prev.denom;
  76 //      this->scale = prev.scale;
  77         this->size = prev.size;
  78         boundaries();
  79 }
  80
  81 void TimeStretchRTConfig::boundaries()
  82 {
  83         if(num < 0.0001) num = 0.0001;
  84         if(denom < 0.0001) denom = 0.0001;
  85 //      if(fabs(scale) < 0.01) scale = 0.01;
  86 //      if(fabs(scale) > 100) scale = 100;
  87         if(size < 10) size = 10;
  88         if(size > 1000) size = 1000;
  89 }
  90
  91
  92
  93
  94 TimeStretchRTWindow::TimeStretchRTWindow(TimeStretchRT *plugin)
  95  : PluginClientWindow(plugin,
  96         xS(180),
  97         yS(160),
  98         xS(180),
  99         yS(160),
 100         0)
 101 {
 102         this->plugin = plugin;
 103 }
 104
 105 TimeStretchRTWindow::~TimeStretchRTWindow()
 106 {
 107 }
 108
 109 void TimeStretchRTWindow::create_objects()
 110 {
 111         int x = xS(10), y = yS(10);
 112         int margin = plugin->get_theme()->widget_border;
 113
 114         BC_Title *title = 0;
 115         add_subwindow(title = new BC_Title(x, y, _("Input samples:")));
 116         y += title->get_h() + plugin->get_theme()->widget_border;
 117         num = new TimeStretchRTScale(this,
 118                 plugin,
 119                 x,
 120                 y,
 121                 &plugin->config.num);
 122         num->create_objects();
 123         y += num->get_h() + margin;
 124
 125         add_subwindow(title = new BC_Title(x, y, _("Output samples:")));
 126         y += title->get_h() + plugin->get_theme()->widget_border;
 127         denom = new TimeStretchRTScale(this,
 128                 plugin,
 129                 x,
 130                 y,
 131                 &plugin->config.denom);
 132         denom->create_objects();
 133
 134         y += denom->get_h() + margin;
 135         add_subwindow(title = new BC_Title(x, y, _("Window size (ms):")));
 136         y += title->get_h() + margin;
 137         size = new TimeStretchRTSize(this,
 138                 plugin,
 139                 x,
 140                 y);
 141         size->create_objects();
 142
 143         show_window();
 144 }
 145
 146
 147
 148
 149
 150
 151 TimeStretchRTScale::TimeStretchRTScale(TimeStretchRTWindow *window,
 152         TimeStretchRT *plugin,
 153         int x,
 154         int y,
 155         double *value)
 156  : BC_TumbleTextBox(window,
 157         (float)*value,
 158         (float)0.0001,
 159         (float)1000,
 160         x,
 161         y,
 162         100)
 163 {
 164         this->plugin = plugin;
 165         this->value = value;
 166         set_increment(0.01);
 167 }
 168
 169 int TimeStretchRTScale::handle_event()
 170 {
 171         *value = atof(get_text());
 172         plugin->config.boundaries();
 173         plugin->send_configure_change();
 174         return 1;
 175 }
 176
 177
 178
 179
 180 TimeStretchRTSize::TimeStretchRTSize(TimeStretchRTWindow *window,
 181         TimeStretchRT *plugin,
 182         int x,
 183         int y)
 184  : BC_TumbleTextBox(window,
 185         plugin->config.size,
 186         10,
 187         1000,
 188         x,
 189         y,
 190         100)
 191 {
 192         this->plugin = plugin;
 193         set_increment(10);
 194 }
 195
 196 int TimeStretchRTSize::handle_event()
 197 {
 198         plugin->config.size = atoi(get_text());
 199         plugin->send_configure_change();
 200         return 1;
 201 }
 202
 203
 204
 205
 206
 207
 208
 209
 210 TimeStretchRT::TimeStretchRT(PluginServer *server)
 211  : PluginAClient(server)
 212 {
 213         need_reconfigure = 1;
 214         dest_start = -1;
 215         source_start = -1;
 216         engine = 0;
 217 }
 218
 219
 220 TimeStretchRT::~TimeStretchRT()
 221 {
 222         delete engine;
 223 }
 224
 225 const char* TimeStretchRT::plugin_title() { return N_("Time Stretch RT"); }
 226 int TimeStretchRT::is_realtime() { return 1; }
 227 int TimeStretchRT::is_synthesis() { return 1; }
 228
 229
 230 NEW_WINDOW_MACRO(TimeStretchRT, TimeStretchRTWindow)
 231
 232 LOAD_CONFIGURATION_MACRO(TimeStretchRT, TimeStretchRTConfig)
 233
 234
 235 int TimeStretchRT::process_buffer(int64_t size,
 236         Samples *buffer,
 237         int64_t start_position,
 238         int sample_rate)
 239 {
 240         need_reconfigure = load_configuration();
 241
 242         if(!engine) engine = new TimeStretchEngine(config.denom / config.num,
 243                 sample_rate,
 244                 config.size);
 245
 246         if(start_position != dest_start) need_reconfigure = 1;
 247         dest_start = start_position;
 248
 249 // Get start position of the input.
 250 // Sample 0 is the keyframe position
 251         if(need_reconfigure)
 252         {
 253                 int64_t prev_position = edl_to_local(
 254                         get_prev_keyframe(
 255                                 get_source_position())->position);
 256
 257                 if(prev_position == 0)
 258                 {
 259                         prev_position = get_source_start();
 260                 }
 261
 262                 source_start = (int64_t)((start_position - prev_position) *
 263                         config.num / config.denom) + prev_position;
 264
 265                 engine->reset();
 266                 engine->update(config.denom / config.num, sample_rate, config.size);
 267                 need_reconfigure = 0;
 268 // printf("TimeStretchRT::process_buffer %d start_position=%lld prev_position=%lld scale=%f source_start=%lld\n",
 269 // __LINE__,
 270 // start_position,
 271 // prev_position,
 272 // config.scale,
 273 // source_start);
 274         }
 275
 276 // process buffers until output length is reached
 277         int error = 0;
 278         while(!error && engine->get_output_size() < size)
 279         {
 280
 281 // printf("TimeStretchRT::process_buffer %d buffer=%p size=%lld source_start=%lld\n",
 282 // __LINE__,
 283 // buffer,
 284 // size,
 285 // source_start);
 286                 read_samples(buffer,
 287                         0,
 288                         sample_rate,
 289                         source_start,
 290                         size);
 291
 292
 293                 if(get_direction() == PLAY_FORWARD)
 294                         source_start += size;
 295                 else
 296                         source_start -= size;
 297
 298 //printf("TimeStretchRT::process_buffer %d size=%d\n", __LINE__, size);
 299                 engine->process(buffer, size);
 300 //printf("TimeStretchRT::process_buffer %d\n", __LINE__);
 301
 302         }
 303 //printf("TimeStretchRT::process_buffer %d\n", __LINE__);
 304
 305
 306         engine->read_output(buffer, size);
 307
 308 //printf("TimeStretchRT::process_buffer %d\n", __LINE__);
 309         if(get_direction() == PLAY_FORWARD)
 310                 dest_start += size;
 311         else
 312                 dest_start -= size;
 313
 314         return 0;
 315 }
 316
 317
 318
 319
 320
 321 void TimeStretchRT::save_data(KeyFrame *keyframe)
 322 {
 323         FileXML output;
 324
 325 // cause data to be stored directly in text
 326         output.set_shared_output(keyframe->xbuf);
 327         output.tag.set_title("TIMESTRETCHRT");
 328         output.tag.set_property("NUM", config.num);
 329         output.tag.set_property("DENOM", config.denom);
 330         output.tag.set_property("SIZE", config.size);
 331         output.append_tag();
 332         output.tag.set_title("/TIMESTRETCHRT");
 333         output.append_tag();
 334         output.append_newline();
 335         output.terminate_string();
 336 }
 337
 338 void TimeStretchRT::read_data(KeyFrame *keyframe)
 339 {
 340         FileXML input;
 341
 342         input.set_shared_input(keyframe->xbuf);
 343
 344         while(!input.read_tag())
 345         {
 346                 if(input.tag.title_is("TIMESTRETCHRT"))
 347                 {
 348                         config.num = input.tag.get_property("NUM", config.num);
 349                         config.denom = input.tag.get_property("DENOM", config.denom);
 350                         config.size = input.tag.get_property("SIZE", config.size);
 351                 }
 352         }
 353 }
 354
 355 void TimeStretchRT::update_gui()
 356 {
 357         if(thread)
 358         {
 359                 if(load_configuration())
 360                 {
 361
 362                         thread->window->lock_window("TimeStretchRT::update_gui");
 363                         ((TimeStretchRTWindow*)thread->window)->num->update((float)config.num);
 364                         ((TimeStretchRTWindow*)thread->window)->denom->update((float)config.denom);
 365                         ((TimeStretchRTWindow*)thread->window)->size->update((int64_t)config.size);
 366                         thread->window->unlock_window();
 367                 }
 368         }
 369 }
 370
 371
 372
 373
 374