cinelerra-5.1/plugins/audioscope/audioscope.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 1997-2011 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 "audioscope.h"
  23 #include "bcdisplayinfo.h"
  24 #include "bcsignals.h"
  25 #include "clip.h"
  26 #include "cursors.h"
  27 #include "bchash.h"
  28 #include "filexml.h"
  29 #include "language.h"
  30 #include "bccolors.h"
  31 #include "samples.h"
  32 #include "theme.h"
  33 #include "transportque.inc"
  34 #include "units.h"
  35 #include "vframe.h"
  36
  37
  38 #include <string.h>
  39
  40
  41
  42 REGISTER_PLUGIN(AudioScope)
  43
  44
  45 AudioScopeConfig::AudioScopeConfig()
  46 {
  47         window_size = MAX_WINDOW;
  48         history_size = 4;
  49         mode = XY_MODE;
  50         trigger_level = 0;
  51 }
  52
  53 int AudioScopeConfig::equivalent(AudioScopeConfig &that)
  54 {
  55         return window_size == that.window_size &&
  56                 history_size == that.history_size &&
  57                 mode == that.mode &&
  58                 EQUIV(trigger_level, that.trigger_level);
  59 }
  60
  61 void AudioScopeConfig::copy_from(AudioScopeConfig &that)
  62 {
  63         window_size = that.window_size;
  64         history_size = that.history_size;
  65         mode = that.mode;
  66         trigger_level = that.trigger_level;
  67 }
  68
  69 void AudioScopeConfig::interpolate(AudioScopeConfig &prev,
  70         AudioScopeConfig &next,
  71         int64_t prev_frame,
  72         int64_t next_frame,
  73         int64_t current_frame)
  74 {
  75         copy_from(prev);
  76
  77         CLAMP(history_size, MIN_HISTORY, MAX_HISTORY - 1);
  78 }
  79
  80
  81
  82 AudioScopeFrame::AudioScopeFrame(int data_size, int channels)
  83 {
  84         this->size = data_size;
  85         this->channels = channels;
  86         for(int i = 0; i < CHANNELS; i++)
  87                 data[i] = new float[data_size];
  88         force = 0;
  89 }
  90
  91 AudioScopeFrame::~AudioScopeFrame()
  92 {
  93         for(int i = 0; i < CHANNELS; i++)
  94                 delete [] data[i];
  95 }
  96
  97
  98
  99
 100
 101
 102
 103 AudioScopeHistory::AudioScopeHistory(AudioScope *plugin,
 104         int x,
 105         int y)
 106  : BC_IPot(x,
 107         y,
 108         plugin->config.history_size,
 109         MIN_HISTORY,
 110         MAX_HISTORY)
 111 {
 112         this->plugin = plugin;
 113 }
 114
 115 int AudioScopeHistory::handle_event()
 116 {
 117         plugin->config.history_size = get_value();
 118         plugin->send_configure_change();
 119         return 1;
 120 }
 121
 122
 123
 124
 125
 126
 127
 128
 129 AudioScopeWindowSize::AudioScopeWindowSize(AudioScope *plugin,
 130         int x,
 131         int y,
 132         char *text)
 133  : BC_PopupMenu(x,
 134         y,
 135         xS(110),
 136         text)
 137 {
 138         this->plugin = plugin;
 139 }
 140
 141 int AudioScopeWindowSize::handle_event()
 142 {
 143         plugin->config.window_size = atoi(get_text());
 144         plugin->send_configure_change();
 145         return 1;
 146 }
 147
 148
 149 AudioScopeWindowSizeTumbler::AudioScopeWindowSizeTumbler(AudioScope *plugin, int x, int y)
 150  : BC_Tumbler(x,
 151         y)
 152 {
 153         this->plugin = plugin;
 154 }
 155
 156 int AudioScopeWindowSizeTumbler::handle_up_event()
 157 {
 158         plugin->config.window_size *= 2;
 159         if(plugin->config.window_size > MAX_WINDOW)
 160                 plugin->config.window_size = MAX_WINDOW;
 161         char string[BCTEXTLEN];
 162         sprintf(string, "%d", plugin->config.window_size);
 163         ((AudioScopeWindow*)plugin->get_thread()->get_window())->window_size->set_text(string);
 164         plugin->send_configure_change();
 165         return 1;
 166 }
 167
 168 int AudioScopeWindowSizeTumbler::handle_down_event()
 169 {
 170         plugin->config.window_size /= 2;
 171         if(plugin->config.window_size < MIN_WINDOW)
 172                 plugin->config.window_size = MIN_WINDOW;
 173         char string[BCTEXTLEN];
 174         sprintf(string, "%d", plugin->config.window_size);
 175         ((AudioScopeWindow*)plugin->get_thread()->get_window())->window_size->set_text(string);
 176         plugin->send_configure_change();
 177         return 1;
 178 }
 179
 180
 181
 182
 183
 184 AudioScopeCanvas::AudioScopeCanvas(AudioScope *plugin,
 185         int x,
 186         int y,
 187         int w,
 188         int h)
 189  : BC_SubWindow(x, y, w, h, BLACK)
 190 {
 191         this->plugin = plugin;
 192         current_operation = NONE;
 193 }
 194
 195 int AudioScopeCanvas::button_press_event()
 196 {
 197         if(is_event_win() && cursor_inside())
 198         {
 199                 calculate_point();
 200                 current_operation = DRAG;
 201                 plugin->send_configure_change();
 202                 return 1;
 203         }
 204         return 0;
 205 }
 206
 207 int AudioScopeCanvas::button_release_event()
 208 {
 209         if(current_operation == DRAG)
 210         {
 211                 current_operation = NONE;
 212                 return 1;
 213         }
 214         return 0;
 215 }
 216
 217 int AudioScopeCanvas::cursor_motion_event()
 218 {
 219         if(current_operation == DRAG)
 220         {
 221                 calculate_point();
 222                 return 1;
 223         }
 224         return 0;
 225 }
 226
 227
 228 void AudioScopeCanvas::calculate_point()
 229 {
 230         int x = get_cursor_x();
 231         int y = get_cursor_y();
 232         CLAMP(x, 0, get_w() - 1);
 233         CLAMP(y, 0, get_h() - 1);
 234
 235         ((AudioScopeWindow*)plugin->thread->window)->calculate_probe(x, y, 1);
 236
 237 //printf("AudioScopeCanvas::calculate_point %d %d\n", __LINE__, Freq::tofreq(freq_index));
 238 }
 239
 240
 241
 242
 243
 244
 245
 246 AudioScopeTriggerLevel::AudioScopeTriggerLevel(AudioScope *plugin, int x, int y)
 247  : BC_FPot(x, y, plugin->config.trigger_level, (float)-1.0, (float)1.0)
 248 {
 249         this->plugin = plugin;
 250         set_precision(0.01);
 251 }
 252
 253 int AudioScopeTriggerLevel::handle_event()
 254 {
 255         AudioScopeWindow *window = (AudioScopeWindow*)plugin->thread->window;
 256         window->draw_trigger();
 257         plugin->config.trigger_level = get_value();
 258         plugin->send_configure_change();
 259         window->draw_trigger();
 260         window->canvas->flash();
 261         return 1;
 262 }
 263
 264
 265
 266
 267
 268 AudioScopeMode::AudioScopeMode(AudioScope *plugin,
 269         int x,
 270         int y)
 271  : BC_PopupMenu(x,
 272         y,
 273         xS(180),
 274         mode_to_text(plugin->config.mode))
 275 {
 276         this->plugin = plugin;
 277 }
 278
 279 void AudioScopeMode::create_objects()
 280 {
 281         add_item(new BC_MenuItem(mode_to_text(XY_MODE)));
 282         add_item(new BC_MenuItem(mode_to_text(WAVEFORM_NO_TRIGGER)));
 283         add_item(new BC_MenuItem(mode_to_text(WAVEFORM_RISING_TRIGGER)));
 284         add_item(new BC_MenuItem(mode_to_text(WAVEFORM_FALLING_TRIGGER)));
 285 }
 286
 287 int AudioScopeMode::handle_event()
 288 {
 289         if(plugin->config.mode != text_to_mode(get_text()))
 290         {
 291                 AudioScopeWindow *window = (AudioScopeWindow*)plugin->thread->window;
 292                 window->probe_x = -1;
 293                 window->probe_y = -1;
 294                 plugin->config.mode = text_to_mode(get_text());
 295                 plugin->send_configure_change();
 296
 297                 window->canvas->clear_box(0, 0, window->canvas->get_w(), window->canvas->get_h());
 298                 window->draw_overlay();
 299                 window->canvas->flash();
 300         }
 301         return 1;
 302 }
 303
 304 const char* AudioScopeMode::mode_to_text(int mode)
 305 {
 306         switch(mode)
 307         {
 308                 case XY_MODE:
 309                         return _("XY Mode");
 310                 case WAVEFORM_NO_TRIGGER:
 311                         return _("Waveform");
 312                 case WAVEFORM_RISING_TRIGGER:
 313                         return _("Rising Trigger");
 314                 case WAVEFORM_FALLING_TRIGGER:
 315                 default:
 316                         return _("Falling Trigger");
 317         }
 318 }
 319
 320 int AudioScopeMode::text_to_mode(const char *text)
 321 {
 322         if(!strcmp(mode_to_text(XY_MODE), text)) return XY_MODE;
 323         if(!strcmp(mode_to_text(WAVEFORM_NO_TRIGGER), text)) return WAVEFORM_NO_TRIGGER;
 324         if(!strcmp(mode_to_text(WAVEFORM_RISING_TRIGGER), text)) return WAVEFORM_RISING_TRIGGER;
 325         if(!strcmp(mode_to_text(WAVEFORM_FALLING_TRIGGER), text)) return WAVEFORM_FALLING_TRIGGER;
 326         return XY_MODE;
 327 }
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337 AudioScopeWindow::AudioScopeWindow(AudioScope *plugin)
 338  : PluginClientWindow(plugin, plugin->w, plugin->h, xS(320), yS(320), 1)
 339 {
 340         this->plugin = plugin;
 341         probe_x = -1;
 342         probe_y = -1;
 343 }
 344
 345 AudioScopeWindow::~AudioScopeWindow()
 346 {
 347 }
 348
 349 void AudioScopeWindow::create_objects()
 350 {
 351         int x = plugin->get_theme()->widget_border;
 352         int y = 0;
 353         char string[BCTEXTLEN];
 354
 355         add_subwindow(canvas = new AudioScopeCanvas(plugin,
 356                 0,
 357                 0,
 358                 get_w(),
 359                 get_h() -
 360                         plugin->get_theme()->widget_border * 4 -
 361                         BC_Title::calculate_h(this, "X") * 3));
 362         canvas->set_cursor(CROSS_CURSOR, 0, 0);
 363         draw_overlay();
 364
 365         y += canvas->get_h() + plugin->get_theme()->widget_border;
 366
 367         add_subwindow(history_size_title = new BC_Title(x, y, _("History Size:")));
 368         x += history_size_title->get_w() + plugin->get_theme()->widget_border;
 369         add_subwindow(history_size = new AudioScopeHistory(plugin,
 370                 x,
 371                 y));
 372         x += history_size->get_w() + plugin->get_theme()->widget_border;
 373
 374
 375         int x1 = x;
 376         sprintf(string, "%d", plugin->config.window_size);
 377         add_subwindow(window_size_title = new BC_Title(x, y, _("Window Size:")));
 378
 379         x += window_size_title->get_w() + plugin->get_theme()->widget_border;
 380         add_subwindow(window_size = new AudioScopeWindowSize(plugin, x, y, string));
 381         x += window_size->get_w();
 382         add_subwindow(window_size_tumbler = new AudioScopeWindowSizeTumbler(plugin, x, y));
 383
 384         for(int i = MIN_WINDOW; i <= MAX_WINDOW; i *= 2)
 385         {
 386                 sprintf(string, "%d", i);
 387                 window_size->add_item(new BC_MenuItem(string));
 388         }
 389
 390         x += window_size_tumbler->get_w() + plugin->get_theme()->widget_border;
 391
 392         int y1 = y;
 393         x = x1;
 394         y += window_size->get_h() + plugin->get_theme()->widget_border;
 395         add_subwindow(mode_title = new BC_Title(x, y, _("Mode:")));
 396
 397         x += mode_title->get_w() + plugin->get_theme()->widget_border;
 398         add_subwindow(mode = new AudioScopeMode(plugin, x, y));
 399         mode->create_objects();
 400
 401         x += mode->get_w() + plugin->get_theme()->widget_border;
 402         y = y1;
 403         add_subwindow(trigger_level_title = new BC_Title(x, y, _("Trigger level:")));
 404
 405         x += trigger_level_title->get_w() + plugin->get_theme()->widget_border;
 406         add_subwindow(trigger_level = new AudioScopeTriggerLevel(plugin, x, y));
 407
 408
 409         x += trigger_level->get_w() + plugin->get_theme()->widget_border;
 410         y = y1;
 411         add_subwindow(probe_sample = new BC_Title(x, y, _("Sample: 0")));
 412         y += probe_sample->get_h() + plugin->get_theme()->widget_border;
 413         add_subwindow(probe_level0 = new BC_Title(x, y, _("Level 0: 0"), MEDIUMFONT, CHANNEL0_COLOR));
 414         y += probe_level0->get_h() + plugin->get_theme()->widget_border;
 415         add_subwindow(probe_level1 = new BC_Title(x, y, _("Level 1: 0"), MEDIUMFONT, CHANNEL1_COLOR));
 416         y += probe_level1->get_h() + plugin->get_theme()->widget_border;
 417
 418
 419
 420         show_window();
 421 }
 422
 423 int AudioScopeWindow::resize_event(int w, int h)
 424 {
 425         int y_diff = h - get_h();
 426
 427         int canvas_factor = get_h() - canvas->get_h();
 428         canvas->reposition_window(0,
 429                 0,
 430                 w,
 431                 h - canvas_factor);
 432         canvas->clear_box(0, 0, canvas->get_w(), canvas->get_h());
 433         draw_overlay();
 434         canvas->flash(0);
 435
 436
 437 // Remove all columns which may be a different size.
 438         plugin->frame_buffer.remove_all_objects();
 439
 440         window_size_title->reposition_window(window_size_title->get_x(),
 441                 window_size_title->get_y() + y_diff);
 442         window_size->reposition_window(window_size->get_x(),
 443                 window_size->get_y() + y_diff);
 444         window_size_tumbler->reposition_window(window_size_tumbler->get_x(),
 445                 window_size_tumbler->get_y() + y_diff);
 446
 447
 448
 449         history_size_title->reposition_window(history_size_title->get_x(),
 450                 history_size_title->get_y() + y_diff);
 451         history_size->reposition_window(history_size->get_x(),
 452                 history_size->get_y() + y_diff);
 453
 454         mode_title->reposition_window(mode_title->get_x(),
 455                 mode_title->get_y() + y_diff);
 456         mode->reposition_window(mode->get_x(),
 457                 mode->get_y() + y_diff);
 458
 459
 460         trigger_level_title->reposition_window(trigger_level_title->get_x(),
 461                 trigger_level_title->get_y() + y_diff);
 462         trigger_level->reposition_window(trigger_level->get_x(),
 463                 trigger_level->get_y() + y_diff);
 464
 465
 466         probe_sample->reposition_window(probe_sample->get_x(),
 467                 probe_sample->get_y() + y_diff);
 468         probe_level0->reposition_window(probe_level0->get_x(),
 469                 probe_level0->get_y() + y_diff);
 470         probe_level1->reposition_window(probe_level1->get_x(),
 471                 probe_level1->get_y() + y_diff);
 472
 473         flush();
 474
 475         plugin->w = w;
 476         plugin->h = h;
 477         return 0;
 478 }
 479
 480 void AudioScopeWindow::draw_overlay()
 481 {
 482         canvas->set_color(GREEN);
 483
 484         canvas->draw_line(0,
 485                 canvas->get_h() / 2,
 486                 canvas->get_w(),
 487                 canvas->get_h() / 2);
 488         if(plugin->config.mode == XY_MODE)
 489         {
 490                 canvas->draw_line(canvas->get_w() / 2,
 491                         0,
 492                         canvas->get_w() / 2,
 493                         canvas->get_h());
 494         }
 495
 496         draw_trigger();
 497         draw_probe();
 498 //printf("AudioScopeWindow::draw_overlay %d\n", __LINE__);
 499 }
 500
 501 void AudioScopeWindow::draw_trigger()
 502 {
 503         if(plugin->config.mode == WAVEFORM_RISING_TRIGGER ||
 504                 plugin->config.mode == WAVEFORM_FALLING_TRIGGER)
 505         {
 506                 int y = (int)(-plugin->config.trigger_level *
 507                         canvas->get_h() / 2 +
 508                         canvas->get_h() / 2);
 509                 CLAMP(y, 0, canvas->get_h() - 1);
 510                 canvas->set_inverse();
 511                 canvas->set_color(RED);
 512                 canvas->draw_line(0, y, canvas->get_w(), y);
 513                 canvas->set_opaque();
 514         }
 515 }
 516
 517 void AudioScopeWindow::draw_probe()
 518 {
 519         if(probe_x >= 0 || probe_y >= 0)
 520         {
 521                 canvas->set_color(GREEN);
 522                 canvas->set_inverse();
 523
 524                 if(plugin->config.mode == XY_MODE)
 525                 {
 526                         canvas->draw_line(0, probe_y, get_w(), probe_y);
 527                         canvas->draw_line(probe_x, 0, probe_x, get_h());
 528                 }
 529                 else
 530                 {
 531                         canvas->draw_line(probe_x, 0, probe_x, get_h());
 532                 }
 533
 534                 canvas->set_opaque();
 535         }
 536 }
 537
 538
 539
 540
 541 void AudioScopeWindow::calculate_probe(int x, int y, int do_overlay)
 542 {
 543         if(x < 0 && y < 0) return;
 544
 545 // Clear previous overlay
 546         if(do_overlay) draw_probe();
 547
 548 // New probe position
 549         probe_x = x;
 550         probe_y = y;
 551
 552         int sample = 0;
 553         double channel0 = 0;
 554         double channel1 = 0;
 555         if(plugin->config.mode == XY_MODE)
 556         {
 557                 channel0 = (float)(probe_x - canvas->get_w() / 2) / (canvas->get_w() / 2);
 558                 channel1 = (float)(canvas->get_h() / 2 - probe_y) / (canvas->get_h() / 2);
 559         }
 560         else
 561         if(plugin->current_frame)
 562         {
 563                 sample = probe_x * plugin->current_frame->size / canvas->get_w();
 564                 CLAMP(sample, 0, plugin->current_frame->size - 1);
 565                 channel0 = plugin->current_frame->data[0][sample];
 566                 channel1 = plugin->current_frame->data[1][sample];
 567         }
 568
 569
 570         char string[BCTEXTLEN];
 571         sprintf(string, _("Sample: %d"), sample);
 572         probe_sample->update(string);
 573
 574         sprintf(string, _("Level 0: %.2f"), channel0);
 575         probe_level0->update(string);
 576
 577         sprintf(string, _("Level 1: %.2f"), channel1);
 578         probe_level1->update(string);
 579
 580
 581         if(do_overlay)
 582         {
 583                 draw_probe();
 584                 canvas->flash();
 585         }
 586 }
 587
 588
 589
 590
 591
 592 void AudioScopeWindow::update_gui()
 593 {
 594         char string[BCTEXTLEN];
 595         sprintf(string, "%d", plugin->config.window_size);
 596         window_size->set_text(string);
 597         history_size->update(plugin->config.history_size);
 598 }
 599
 600
 601
 602
 603
 604
 605
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 607
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 609
 610
 611
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 621
 622
 623
 624 AudioScope::AudioScope(PluginServer *server)
 625  : PluginAClient(server)
 626 {
 627         reset();
 628         timer = new Timer;
 629         w = xS(640);
 630         h = yS(480);
 631 }
 632
 633 AudioScope::~AudioScope()
 634 {
 635         delete [] data;
 636         for(int i = 0; i < CHANNELS; i++)
 637                 delete audio_buffer[i];
 638         delete timer;
 639         frame_buffer.remove_all_objects();
 640         frame_history.remove_all_objects();
 641 }
 642
 643
 644 void AudioScope::reset()
 645 {
 646         thread = 0;
 647         data = 0;
 648         for(int i = 0; i < CHANNELS; i++)
 649                 audio_buffer[i] = 0;
 650         allocated_data = 0;
 651         total_windows = 0;
 652         buffer_size = 0;
 653         bzero(&header, sizeof(data_header_t));
 654         current_frame = 0;
 655 }
 656
 657
 658 const char* AudioScope::plugin_title() { return N_("AudioScope"); }
 659 int AudioScope::is_realtime() { return 1; }
 660 int AudioScope::is_multichannel() { return 1; }
 661
 662 int AudioScope::process_buffer(int64_t size,
 663                 Samples **buffer,
 664                 int64_t start_position,
 665                 int sample_rate)
 666 {
 667         int channels = MIN(get_total_buffers(), CHANNELS);
 668
 669 // Pass through
 670         for(int i = 0; i < get_total_buffers(); i++)
 671         {
 672                 read_samples(buffer[i],
 673                         i,
 674                         sample_rate,
 675                         start_position,
 676                         size);
 677         }
 678
 679         load_configuration();
 680
 681 // Reset audio buffer
 682         if(window_size != config.window_size)
 683         {
 684                 render_stop();
 685                 window_size = config.window_size;
 686         }
 687
 688         if(!data)
 689         {
 690                 data = new unsigned char[sizeof(data_header_t)];
 691                 allocated_data = 0;
 692         }
 693
 694         if(!audio_buffer[0])
 695         {
 696                 for(int i = 0; i < CHANNELS; i++)
 697                 {
 698                         audio_buffer[i] = new Samples(MAX_WINDOW);
 699                 }
 700         }
 701
 702 // Accumulate audio
 703         int needed = buffer_size + size;
 704         if(audio_buffer[0]->get_allocated() < needed)
 705         {
 706                 for(int i = 0; i < CHANNELS; i++)
 707                 {
 708                         Samples *new_samples = new Samples(needed);
 709                         memcpy(new_samples->get_data(),
 710                                 audio_buffer[i]->get_data(),
 711                                 sizeof(double) * buffer_size);
 712                         delete audio_buffer[i];
 713                         audio_buffer[i] = new_samples;
 714                 }
 715         }
 716
 717         for(int i = 0; i < CHANNELS; i++)
 718         {
 719                 memcpy(audio_buffer[i]->get_data() + buffer_size,
 720                         buffer[MIN(i, channels - 1)]->get_data(),
 721                         sizeof(double) * size);
 722         }
 723         buffer_size += size;
 724
 725
 726 // Append a windows to end of GUI buffer
 727         total_windows = 0;
 728         while(buffer_size >= window_size)
 729         {
 730                 if(allocated_data < (total_windows + 1) * window_size * CHANNELS)
 731                 {
 732                         int new_allocation = (total_windows + 1) *
 733                                 window_size *
 734                                 CHANNELS;
 735                         unsigned char *new_data = new unsigned char[sizeof(data_header_t) +
 736                                 sizeof(float) * new_allocation];
 737                         data_header_t *new_header = (data_header_t*)new_data;
 738                         data_header_t *old_header = (data_header_t*)data;
 739                         memcpy(new_header->samples,
 740                                 old_header->samples,
 741                                 sizeof(float) * allocated_data);
 742                         delete [] data;
 743                         data = new_data;
 744                         allocated_data = new_allocation;
 745                 }
 746
 747 // Search for trigger
 748                 int need_trigger = 0;
 749                 int got_trigger = 0;
 750                 int trigger_sample = 0;
 751 //printf("AudioScope::process_buffer %d\n", __LINE__);
 752                 if(config.mode == WAVEFORM_RISING_TRIGGER)
 753                 {
 754                         need_trigger = 1;
 755                         double *trigger_data = audio_buffer[0]->get_data();
 756                         for(int i = 1; i < buffer_size - window_size; i++)
 757                         {
 758                                 if(trigger_data[i - 1] < config.trigger_level &&
 759                                         trigger_data[i] >= config.trigger_level)
 760                                 {
 761                                         got_trigger = 1;
 762                                         trigger_sample = i;
 763                                         break;
 764                                 }
 765                         }
 766                 }
 767                 else
 768                 if(config.mode == WAVEFORM_FALLING_TRIGGER)
 769                 {
 770                         need_trigger = 1;
 771                         double *trigger_data = audio_buffer[0]->get_data();
 772                         for(int i = 1; i < buffer_size - window_size; i++)
 773                         {
 774                                 if(trigger_data[i - 1] > config.trigger_level &&
 775                                         trigger_data[i] <= config.trigger_level)
 776                                 {
 777                                         got_trigger = 1;
 778                                         trigger_sample = i;
 779                                         break;
 780                                 }
 781                         }
 782                 }
 783
 784 //printf("AudioScope::process_buffer %d\n", __LINE__);
 785 // Flush buffer
 786                 if(need_trigger && !got_trigger)
 787                 {
 788 //printf("AudioScope::process_buffer %d\n", __LINE__);
 789                         for(int j = 0; j < CHANNELS; j++)
 790                         {
 791                                 double *sample_input = audio_buffer[j]->get_data();
 792                                 memcpy(sample_input,
 793                                         sample_input + buffer_size - window_size,
 794                                         sizeof(double) * window_size);
 795                         }
 796
 797                         buffer_size = window_size;
 798                         if(buffer_size == window_size) break;
 799 //printf("AudioScope::process_buffer %d\n", __LINE__);
 800                 }
 801                 else
 802                 {
 803                         data_header_t *header = (data_header_t*)data;
 804 //printf("AudioScope::process_buffer %d\n", __LINE__);
 805                         for(int j = 0; j < CHANNELS; j++)
 806                         {
 807                                 float *sample_output = header->samples +
 808                                         total_windows * CHANNELS * window_size +
 809                                         window_size * j;
 810                                 double *sample_input = audio_buffer[j]->get_data();
 811                                 for(int i = 0; i < window_size; i++)
 812                                 {
 813                                         sample_output[i] = sample_input[i + trigger_sample];
 814                                 }
 815
 816 // Shift accumulation buffer
 817 //printf("AudioScope::process_buffer %d\n", __LINE__);
 818                                 memcpy(sample_input,
 819                                         sample_input + trigger_sample + window_size,
 820                                         sizeof(double) * (buffer_size - trigger_sample - window_size));
 821 //printf("AudioScope::process_buffer %d\n", __LINE__);
 822                         }
 823
 824 //printf("AudioScope::process_buffer %d\n", __LINE__);
 825
 826                         total_windows++;
 827                         buffer_size -= window_size + trigger_sample;
 828 //printf("AudioScope::process_buffer %d\n", __LINE__);
 829                 }
 830         }
 831
 832         data_header_t *header = (data_header_t*)data;
 833         header->window_size = window_size;
 834         header->sample_rate = sample_rate;
 835         header->channels = channels;
 836         header->total_windows = total_windows;
 837
 838         send_render_gui(data,
 839                 sizeof(data_header_t) +
 840                         sizeof(float) * total_windows * window_size * CHANNELS);
 841
 842         return 0;
 843 }
 844
 845 void AudioScope::render_stop()
 846 {
 847         buffer_size = 0;
 848         frame_buffer.remove_all_objects();
 849 }
 850
 851
 852
 853
 854 NEW_WINDOW_MACRO(AudioScope, AudioScopeWindow)
 855
 856 void AudioScope::update_gui()
 857 {
 858         if(thread)
 859         {
 860                 int result = load_configuration();
 861                 AudioScopeWindow *window = (AudioScopeWindow*)thread->get_window();
 862                 window->lock_window("AudioScope::update_gui");
 863                 if(result) window->update_gui();
 864
 865 // Shift in accumulated frames
 866                 if(frame_buffer.size())
 867                 {
 868                         BC_SubWindow *canvas = window->canvas;
 869 // Frames to draw in this iteration
 870                         int total_frames = timer->get_difference() *
 871                                 header.sample_rate /
 872                                 header.window_size /
 873                                 1000;
 874                         if(total_frames) timer->subtract(total_frames *
 875                                 header.window_size *
 876                                 1000 /
 877                                 header.sample_rate);
 878
 879 // Add forced frame drawing
 880                         for(int i = 0; i < frame_buffer.size(); i++)
 881                                 if(frame_buffer.get(i)->force) total_frames++;
 882                         total_frames = MIN(frame_buffer.size(), total_frames);
 883 //printf("AudioScope::update_gui %d %d\n", __LINE__, total_frames);
 884
 885
 886 // expire old history frames
 887                         int new_frames = frame_history.size() + total_frames;
 888                         int expired = new_frames - config.history_size;
 889                         if( expired > 0 )
 890                                 frame_history.remove_object_block(0, expired);
 891 // Shift frames into history
 892                         for(int frame = 0; frame < total_frames; frame++)
 893                                 frame_history.append(frame_buffer.get(frame));
 894                         frame_buffer.remove_block(0, total_frames);
 895
 896 // Point probe data at history
 897                         current_frame = frame_history.get(frame_history.size() - 1);
 898
 899 // Draw frames from history
 900                         canvas->clear_box(0, 0, canvas->get_w(), canvas->get_h());
 901                         for(int frame = 0; frame < frame_history.size(); frame++)
 902                         {
 903                                 AudioScopeFrame *ptr = frame_history.get(frame);
 904
 905                                 int luma = (frame + 1) * 0x80 / frame_history.size();
 906                                 if(frame == frame_history.size() - 1)
 907                                 {
 908                                         canvas->set_color(WHITE);
 909                                         canvas->set_line_width(2);
 910                                 }
 911                                 else
 912                                 {
 913                                         canvas->set_color((luma << 16) |
 914                                                 (luma << 8) |
 915                                                 luma);
 916                                 }
 917
 918                                 int x1 = 0;
 919                                 int y1 = 0;
 920                                 int w = canvas->get_w();
 921                                 int h = canvas->get_h();
 922                                 float *channel0 = ptr->data[0];
 923                                 float *channel1 = ptr->data[1];
 924
 925                                 if(config.mode == XY_MODE)
 926                                 {
 927
 928                                         int number = 0;
 929                                         for(int point = 0; point < ptr->size; point++)
 930                                         {
 931                                                 int x2 = (int)(channel0[point] * w / 2 + w / 2);
 932                                                 int y2 = (int)(-channel1[point] * h / 2 + h / 2);
 933                                                 CLAMP(x2, 0, w - 1);
 934                                                 CLAMP(y2, 0, h - 1);
 935
 936                                                 if(number)
 937                                                 {
 938                                                         canvas->draw_line(x1, y1, x2, y2);
 939                                                 }
 940                                                 else
 941                                                 {
 942                                                         number++;
 943                                                 }
 944
 945                                                 x1 = x2;
 946                                                 y1 = y2;
 947                                         }
 948                                 }
 949                                 else
 950                                 {
 951                                         for(int channel = ptr->channels - 1; channel >= 0; channel--)
 952                                         {
 953                                                 if(channel > 0)
 954                                                 {
 955                                                         if(frame == frame_history.size() - 1)
 956                                                         {
 957                                                                 canvas->set_color(PINK);
 958                                                                 canvas->set_line_width(2);
 959                                                         }
 960                                                         else
 961                                                                 canvas->set_color(((luma * 0xff / 0xff) << 16) |
 962                                                                         ((luma * 0x80 / 0xff) << 8) |
 963                                                                         ((luma * 0x80 / 0xff)));
 964                                                 }
 965                                                 else
 966                                                 {
 967                                                         if(frame == frame_history.size() - 1)
 968                                                                 canvas->set_color(WHITE);
 969                                                         else
 970                                                                 canvas->set_color((luma << 16) |
 971                                                                         (luma << 8) |
 972                                                                         luma);
 973                                                 }
 974
 975                                                 if(ptr->size < w)
 976                                                 {
 977                                                         for(int point = 0; point < ptr->size; point++)
 978                                                         {
 979                                                                 int x2 = point * w / ptr->size;
 980                                                                 int y2 = (int)(-ptr->data[channel][point] * h / 2 + h / 2);
 981                                                                 CLAMP(y2, 0, h - 1);
 982                                                                 if(point > 0)
 983                                                                 {
 984                                                                         canvas->draw_line(x1, y1, x2, y2);
 985                                                                 }
 986
 987                                                                 x1 = x2;
 988                                                                 y1 = y2;
 989                                                         }
 990                                                 }
 991                                                 else
 992                                                 {
 993                                                         for(int x2 = 0; x2 < w; x2++)
 994                                                         {
 995                                                                 int sample1 = x2 * ptr->size / w;
 996                                                                 int sample2 = (x2 + 1) * ptr->size / w;
 997                                                                 double min = ptr->data[channel][sample1];
 998                                                                 double max = ptr->data[channel][sample1];
 999                                                                 for(int i = sample1 + 1; i < sample2; i++)
1000                                                                 {
1001                                                                         double value = ptr->data[channel][i];
1002                                                                         if(value < min) min = value;
1003                                                                         if(value > max) max = value;
1004                                                                 }
1005
1006                                                                 int min2 = (int)(-min * h / 2 + h / 2);
1007                                                                 int max2 = (int)(-max * h / 2 + h / 2);
1008                                                                 CLAMP(min2, 0, h - 1);
1009                                                                 CLAMP(max2, 0, h - 1);
1010                                                                 int y2 = (min2 + max2) / 2;
1011                                                                 canvas->draw_line(x2, min2, x2, max2);
1012                                                                 if(x2 > 0)
1013                                                                 {
1014                                                                         canvas->draw_line(x2, y1, x2, y2);
1015                                                                 }
1016
1017                                                                 y1 = y2;
1018                                                         }
1019                                                 }
1020                                         }
1021                                 }
1022
1023                                 canvas->set_line_width(1);
1024                         }
1025
1026 // Recompute probe level
1027                         window->calculate_probe(window->probe_x, window->probe_y, 0);
1028
1029
1030 // Draw overlay
1031                         window->draw_overlay();
1032                         canvas->flash();
1033                 }
1034
1035
1036
1037                 while(frame_buffer.size() > MAX_COLUMNS)
1038                         frame_buffer.remove_object_number(0);
1039
1040                 thread->get_window()->unlock_window();
1041         }
1042 }
1043
1044 void AudioScope::render_gui(void *data, int size)
1045 {
1046         if(thread)
1047         {
1048                 thread->get_window()->lock_window("AudioScope::render_gui");
1049                 data_header_t *header = (data_header_t*)data;
1050                 memcpy(&this->header, header, sizeof(data_header_t));
1051                 //BC_SubWindow *canvas = ((AudioScopeWindow*)thread->get_window())->canvas;
1052                 //int h = canvas->get_h();
1053
1054 // Set all previous frames to draw immediately
1055                 for(int i = 0; i < frame_buffer.size(); i++)
1056                         frame_buffer.get(i)->force = 1;
1057
1058                 for(int current_fragment = 0;
1059                         current_fragment < header->total_windows;
1060                         current_fragment++)
1061                 {
1062                         float *in_frame = header->samples +
1063                                 current_fragment * header->window_size * CHANNELS;
1064                         AudioScopeFrame *out_frame = new AudioScopeFrame(
1065                                 header->window_size,
1066                                 header->channels);
1067
1068 // Copy the window to the frame
1069                         for(int j = 0; j < CHANNELS; j++)
1070                         {
1071                                 for(int i = 0; i < header->window_size; i++)
1072                                 {
1073                                         out_frame->data[j][i] = in_frame[header->window_size * j + i];
1074                                 }
1075                         }
1076
1077                         frame_buffer.append(out_frame);
1078                         total_windows++;
1079                 }
1080
1081                 timer->update();
1082                 thread->get_window()->unlock_window();
1083         }
1084 }
1085
1086
1087
1088
1089
1090
1091
1092
1093 LOAD_CONFIGURATION_MACRO(AudioScope, AudioScopeConfig)
1094
1095 void AudioScope::read_data(KeyFrame *keyframe)
1096 {
1097         FileXML input;
1098         input.set_shared_input(keyframe->xbuf);
1099
1100         int result = 0;
1101         while(!result)
1102         {
1103                 result = input.read_tag();
1104
1105                 if(!result)
1106                 {
1107                         if(input.tag.title_is("AUDIOSCOPE"))
1108                         {
1109                                 if(is_defaults())
1110                                 {
1111                                         w = input.tag.get_property("W", w);
1112                                         h = input.tag.get_property("H", h);
1113                                 }
1114
1115                                 config.history_size = input.tag.get_property("HISTORY_SIZE", config.history_size);
1116                                 config.window_size = input.tag.get_property("WINDOW_SIZE", config.window_size);
1117                                 config.mode = input.tag.get_property("MODE", config.mode);
1118                                 config.trigger_level = input.tag.get_property("TRIGGER_LEVEL", config.trigger_level);
1119                         }
1120                 }
1121         }
1122 }
1123
1124 void AudioScope::save_data(KeyFrame *keyframe)
1125 {
1126         FileXML output;
1127         output.set_shared_output(keyframe->xbuf);
1128
1129 //printf("AudioScope::save_data %d %d %d\n", __LINE__, config.w, config.h);
1130         output.tag.set_title("AUDIOSCOPE");
1131         output.tag.set_property("W", w);
1132         output.tag.set_property("H", h);
1133         output.tag.set_property("HISTORY_SIZE", config.history_size);
1134         output.tag.set_property("WINDOW_SIZE", (int)config.window_size);
1135         output.tag.set_property("MODE", (int)config.mode);
1136         output.tag.set_property("TRIGGER_LEVEL", (float)config.trigger_level);
1137         output.append_tag();
1138         output.tag.set_title("/AUDIOSCOPE");
1139         output.append_tag();
1140         output.append_newline();
1141         output.terminate_string();
1142 }
1143
1144
1145
1146
1147