cinelerra-5.1/cinelerra/playtransport.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 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 "edl.h"
  23 #include "keys.h"
  24 #include "language.h"
  25 #include "localsession.h"
  26 #include "mwindow.h"
  27 #include "mwindowgui.h"
  28 #include "playbackengine.h"
  29 #include "playtransport.h"
  30 #include "preferences.h"
  31 #include "theme.h"
  32 #include "transportque.h"
  33 #include "vframe.h"
  34
  35
  36
  37 PlayTransport::PlayTransport(MWindow *mwindow,
  38         BC_WindowBase *subwindow,
  39         int x,
  40         int y)
  41 {
  42         this->subwindow = subwindow;
  43         this->mwindow = mwindow;
  44         this->x = x;
  45         this->y = y;
  46         this->engine = 0;
  47         this->status = 0;
  48         this->using_inout = 0;
  49 }
  50
  51
  52 PlayTransport::~PlayTransport()
  53 {
  54         delete forward_play;
  55         delete frame_forward_play;
  56         delete reverse_play;
  57         delete frame_reverse_play;
  58         delete fast_reverse;
  59         delete fast_play;
  60         delete rewind_button;
  61         delete stop_button;
  62         delete end_button;
  63 }
  64
  65 void PlayTransport::set_engine(PlaybackEngine *engine)
  66 {
  67         this->engine = engine;
  68 }
  69
  70 int PlayTransport::get_transport_width(MWindow *mwindow)
  71 {
  72         return mwindow->theme->get_image_set("stop")[0]->get_w() * 7 +
  73                 mwindow->theme->get_image_set("rewind")[0]->get_w() * 2;
  74 }
  75
  76 void PlayTransport::create_objects()
  77 {
  78         int x = this->x, y = this->y;
  79         subwindow->add_subwindow(rewind_button = new RewindButton(mwindow, this, x, y));
  80         x += rewind_button->get_w();
  81         subwindow->add_subwindow(fast_reverse = new FastReverseButton(mwindow, this, x, y));
  82         x += fast_reverse->get_w();
  83         subwindow->add_subwindow(reverse_play = new ReverseButton(mwindow, this, x, y));
  84         x += reverse_play->get_w();
  85         subwindow->add_subwindow(frame_reverse_play = new FrameReverseButton(mwindow, this, x, y));
  86         x += frame_reverse_play->get_w();
  87         subwindow->add_subwindow(stop_button = new StopButton(mwindow, this, x, y));
  88         x += stop_button->get_w();
  89         subwindow->add_subwindow(frame_forward_play = new FramePlayButton(mwindow, this, x, y));
  90         x += frame_forward_play->get_w();
  91         subwindow->add_subwindow(forward_play = new PlayButton(mwindow, this, x, y));
  92         x += forward_play->get_w();
  93         subwindow->add_subwindow(fast_play = new FastPlayButton(mwindow, this, x, y));
  94         x += fast_play->get_w();
  95         subwindow->add_subwindow(end_button = new EndButton(mwindow, this, x, y));
  96         x += end_button->get_w();
  97
  98         reverse = 0;
  99         speed = 0;
 100
 101 }
 102
 103 void PlayTransport::reposition_buttons(int x, int y)
 104 {
 105         this->x = x;
 106         this->y = y;
 107         rewind_button->reposition_window(x, y);
 108         x += rewind_button->get_w();
 109         fast_reverse->reposition_window(x, y);
 110         x += fast_reverse->get_w();
 111         reverse_play->reposition_window(x, y);
 112         x += reverse_play->get_w();
 113         frame_reverse_play->reposition_window(x, y);
 114         x += frame_reverse_play->get_w();
 115         stop_button->reposition_window(x, y);
 116         x += stop_button->get_w();
 117         frame_forward_play->reposition_window(x, y);
 118         x += frame_forward_play->get_w();
 119         forward_play->reposition_window(x, y);
 120         x += forward_play->get_w();
 121         fast_play->reposition_window(x, y);
 122         x += fast_play->get_w();
 123         end_button->reposition_window(x, y);
 124         x += end_button->get_w();
 125 }
 126
 127 int PlayTransport::get_w()
 128 {
 129         return end_button->get_x() + end_button->get_w() - rewind_button->get_x();
 130 }
 131
 132 int PlayTransport::flip_vertical(int vertical, int &x, int &y)
 133 {
 134         if(vertical)
 135         {
 136                 rewind_button->reposition_window(x, y);
 137                 y += rewind_button->get_h();
 138                 fast_reverse->reposition_window(x, y);
 139                 y += fast_reverse->get_h();
 140                 reverse_play->reposition_window(x, y);
 141                 y += reverse_play->get_h();
 142                 frame_reverse_play->reposition_window(x, y);
 143                 y += frame_reverse_play->get_h();
 144                 stop_button->reposition_window(x, y);
 145                 y += stop_button->get_h();
 146                 frame_forward_play->reposition_window(x, y);
 147                 y += frame_forward_play->get_h();
 148                 forward_play->reposition_window(x, y);
 149                 y += forward_play->get_h();
 150                 fast_play->reposition_window(x, y);
 151                 y += fast_play->get_h();
 152                 end_button->reposition_window(x, y);
 153                 y += end_button->get_h();
 154         }
 155         else
 156         {
 157                 rewind_button->reposition_window(x, y - 2);
 158                 x += rewind_button->get_w();
 159                 fast_reverse->reposition_window(x, y - 2);
 160                 x += fast_reverse->get_w();
 161                 reverse_play->reposition_window(x, y - 2);
 162                 x += reverse_play->get_w();
 163                 frame_reverse_play->reposition_window(x, y - 2);
 164                 x += frame_reverse_play->get_w();
 165                 stop_button->reposition_window(x, y - 2);
 166                 x += stop_button->get_w();
 167                 frame_forward_play->reposition_window(x, y - 2);
 168                 x += frame_forward_play->get_w();
 169                 forward_play->reposition_window(x, y - 2);
 170                 x += forward_play->get_w();
 171                 fast_play->reposition_window(x, y - 2);
 172                 x += fast_play->get_w();
 173                 end_button->reposition_window(x, y - 2);
 174                 x += end_button->get_w();
 175         }
 176
 177         return 0;
 178 }
 179
 180 int PlayTransport::keypress_event()
 181 {
 182         int result = 1;
 183         int key = subwindow->get_keypress();
 184 // unqualified keys, still holding lock
 185         switch( key ) {
 186         case HOME:
 187                 goto_start();
 188                 return result;
 189         case END:
 190                 goto_end();
 191                 return result;
 192         }
 193
 194         int toggle_audio = subwindow->shift_down() ? 1 : 0;
 195         int use_inout = subwindow->ctrl_down() ? 1 : 0;
 196         int alt_key = subwindow->alt_down() ? 1 : 0;
 197         int command = -1, prev_command = engine->command->command;
 198         using_inout = use_inout;
 199         subwindow->unlock_window();
 200
 201         result = 0;
 202         switch( key ) {
 203         case KPINS:     command = STOP;                 break;
 204         case KPPLUS:    command = FAST_REWIND;          break;
 205         case KP6:       command = NORMAL_REWIND;        break;
 206         case KP5:       command = SLOW_REWIND;          break;
 207         case KP4:       command = SINGLE_FRAME_REWIND;  break;
 208         case KP1:       command = SINGLE_FRAME_FWD;     break;
 209         case KP2:       command = SLOW_FWD;             break;
 210         case KP3:       command = NORMAL_FWD;           break;
 211         case KPENTER:   command = FAST_FWD;             break;
 212         case ' ':
 213                 switch( prev_command ) {
 214                 case COMMAND_NONE:
 215                 case CURRENT_FRAME:
 216                 case PAUSE:
 217                 case STOP:
 218                         command = NORMAL_FWD;
 219                         break;
 220                 default:
 221                         command = STOP;
 222                         break;
 223                 }
 224                 break;
 225         case 'u': case 'U':
 226                 if( alt_key ) command = SINGLE_FRAME_REWIND;
 227                 break;
 228         case 'i': case 'I':
 229                 if( alt_key ) command = SLOW_REWIND;
 230                 break;
 231         case 'o': case 'O':
 232                 if( alt_key ) command = NORMAL_REWIND;
 233                 break;
 234         case 'p': case 'P':
 235                 if( alt_key ) command = FAST_REWIND;
 236                 break;
 237         case 'j': case 'J':
 238                 if( alt_key ) command = SINGLE_FRAME_FWD;
 239                 break;
 240         case 'k': case 'K':
 241                 if( alt_key ) command = SLOW_FWD;
 242                 break;
 243         case 'l': case 'L':
 244                 if( alt_key ) command = NORMAL_FWD;
 245                 break;
 246         case ':': case ';':
 247                 if( alt_key ) command = FAST_FWD;
 248                 break;
 249         case 'm': case 'M':
 250                 if( alt_key ) command = STOP;
 251                 break;
 252         }
 253         if( command >= 0 ) {
 254                 handle_transport(command, 0, use_inout, 1, toggle_audio);
 255                 result = 1;
 256         }
 257
 258         subwindow->lock_window("PlayTransport::keypress_event 5");
 259         return result;
 260 }
 261
 262
 263 void PlayTransport::goto_start()
 264 {
 265         handle_transport(REWIND, 1, 0);
 266 }
 267
 268 void PlayTransport::goto_end()
 269 {
 270         handle_transport(GOTO_END, 1, 0);
 271 }
 272
 273
 274
 275 void PlayTransport::handle_transport(int command,
 276         int wait_tracking, int use_inout, int update_refresh, int toggle_audio)
 277 {
 278         if( !get_edl() ) return;
 279
 280 // Stop requires transferring the output buffer to a refresh buffer.
 281         int do_stop = 0;
 282         int resume = 0;
 283 //printf("PlayTransport::handle_transport 1 %d\n", command);
 284         int prev_command = engine->command->command;
 285         int prev_single_frame = engine->command->single_frame();
 286         int prev_audio = engine->command->audio_toggle ?
 287                  !prev_single_frame : prev_single_frame;
 288         int cur_single_frame = TransportCommand::single_frame(command);
 289         int cur_audio = toggle_audio ?
 290                  !cur_single_frame : cur_single_frame;
 291
 292 // Dispatch command
 293         switch(command) {
 294         case FAST_REWIND:       // Commands that play back
 295         case NORMAL_REWIND:
 296         case SLOW_REWIND:
 297         case SINGLE_FRAME_REWIND:
 298         case SINGLE_FRAME_FWD:
 299         case SLOW_FWD:
 300         case NORMAL_FWD:
 301         case FAST_FWD:
 302                 if( !prev_single_frame &&
 303                     prev_command == command &&
 304                     cur_audio == prev_audio ) {
 305 // Same direction pressed twice and no change in audio state,  Stop
 306                         do_stop = 1;
 307                         break;
 308                 }
 309 // Resume or change direction
 310                 switch( prev_command ) {
 311                 default:
 312                         engine->que->send_command(STOP, CHANGE_NONE, 0, 0);
 313                         engine->interrupt_playback(wait_tracking);
 314                         resume = 1;
 315 // fall through
 316                 case STOP:
 317                 case COMMAND_NONE:
 318                 case SINGLE_FRAME_FWD:
 319                 case SINGLE_FRAME_REWIND:
 320 // Start from scratch
 321                         engine->que->send_command(command, CHANGE_NONE, get_edl(),
 322                                 1, resume, use_inout, toggle_audio,
 323                                 mwindow->preferences->forward_render_displacement);
 324                         break;
 325                 }
 326                 break;
 327
 328 // Commands that stop
 329         case STOP:
 330         case REWIND:
 331         case GOTO_END:
 332                 do_stop = 1;
 333                 break;
 334         }
 335
 336         if( do_stop ) {
 337                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0);
 338                 engine->interrupt_playback(wait_tracking);
 339         }
 340 }
 341
 342
 343 EDL* PlayTransport::get_edl()
 344 {
 345         return mwindow->edl;
 346 }
 347
 348 int PlayTransport::pause_transport()
 349 {
 350         if(active_button) active_button->set_mode(PLAY_MODE);
 351         return 0;
 352 }
 353
 354
 355 int PlayTransport::reset_transport()
 356 {
 357         fast_reverse->set_mode(PLAY_MODE);
 358         reverse_play->set_mode(PLAY_MODE);
 359         forward_play->set_mode(PLAY_MODE);
 360         frame_reverse_play->set_mode(PLAY_MODE);
 361         frame_forward_play->set_mode(PLAY_MODE);
 362         fast_play->set_mode(PLAY_MODE);
 363         return 0;
 364 }
 365
 366 PTransportButton::PTransportButton(MWindow *mwindow, PlayTransport *transport, int x, int y, VFrame **data)
 367  : BC_Button(x, y, data)
 368 {
 369         this->mwindow = mwindow;
 370         this->transport = transport;
 371         mode = PLAY_MODE;
 372 }
 373 PTransportButton::~PTransportButton()
 374 {
 375 }
 376
 377 int PTransportButton::set_mode(int mode)
 378 {
 379         this->mode = mode;
 380         return 0;
 381 }
 382
 383
 384 RewindButton::RewindButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 385  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("rewind"))
 386 {
 387         set_tooltip(_("Rewind ( Home )"));
 388 }
 389 int RewindButton::handle_event()
 390 {
 391 //      unlock_window();
 392         transport->goto_start();
 393 //      lock_window();
 394         return 1;
 395 }
 396
 397 FastReverseButton::FastReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 398  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("fastrev"))
 399 {
 400         set_tooltip(_("Fast reverse ( + )"));
 401 }
 402 int FastReverseButton::handle_event()
 403 {
 404         unlock_window();
 405         transport->handle_transport(FAST_REWIND, 0, ctrl_down());
 406         lock_window("FastReverseButton::handle_event");
 407         return 1;
 408 }
 409
 410 // Reverse playback normal speed
 411
 412 ReverseButton::ReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 413  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("reverse"))
 414 {
 415         set_tooltip(_("Normal reverse ( 6 )"));
 416 }
 417 int ReverseButton::handle_event()
 418 {
 419         unlock_window();
 420         transport->handle_transport(NORMAL_REWIND, 0, ctrl_down());
 421         lock_window("ReverseButton::handle_event");
 422         return 1;
 423 }
 424
 425 // Reverse playback one frame
 426
 427 FrameReverseButton::FrameReverseButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 428  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("framerev"))
 429 {
 430         set_tooltip(_("Frame reverse ( 4 )"));
 431 }
 432 int FrameReverseButton::handle_event()
 433 {
 434         unlock_window();
 435         transport->handle_transport(SINGLE_FRAME_REWIND, 0, ctrl_down());
 436         lock_window("FrameReverseButton::handle_event");
 437         return 1;
 438 }
 439
 440 // forward playback normal speed
 441
 442 PlayButton::PlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 443  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("play"))
 444 {
 445         set_tooltip(_("Normal forward ( 3 )"));
 446 }
 447 int PlayButton::handle_event()
 448 {
 449         unlock_window();
 450         transport->handle_transport(NORMAL_FWD, 0, ctrl_down());
 451         lock_window("PlayButton::handle_event");
 452         return 1;
 453 }
 454
 455
 456
 457 // forward playback one frame
 458
 459 FramePlayButton::FramePlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 460  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("framefwd"))
 461 {
 462         set_tooltip(_("Frame forward ( 1 )"));
 463 }
 464 int FramePlayButton::handle_event()
 465 {
 466         unlock_window();
 467         transport->handle_transport(SINGLE_FRAME_FWD, 0, ctrl_down());
 468         lock_window("FramePlayButton::handle_event");
 469         return 1;
 470 }
 471
 472
 473
 474 FastPlayButton::FastPlayButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 475  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("fastfwd"))
 476 {
 477         set_tooltip(_("Fast forward ( Enter )"));
 478 }
 479 int FastPlayButton::handle_event()
 480 {
 481         unlock_window();
 482         transport->handle_transport(FAST_FWD, 0, ctrl_down());
 483         lock_window("FastPlayButton::handle_event");
 484         return 1;
 485 }
 486
 487 EndButton::EndButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 488  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("end"))
 489 {
 490         set_tooltip(_("Jump to end ( End )"));
 491 }
 492 int EndButton::handle_event()
 493 {
 494 //      unlock_window();
 495         transport->goto_end();
 496 //      lock_window();
 497         return 1;
 498 }
 499
 500 StopButton::StopButton(MWindow *mwindow, PlayTransport *transport, int x, int y)
 501  : PTransportButton(mwindow, transport, x, y, mwindow->theme->get_image_set("stop"))
 502 {
 503         set_tooltip(_("Stop ( 0 )"));
 504 }
 505 int StopButton::handle_event()
 506 {
 507         unlock_window();
 508         transport->handle_transport(STOP, 0, 0);
 509         lock_window("StopButton::handle_event");
 510         return 1;
 511 }
 512
 513
 514
 515 void PlayTransport::change_position(double position)
 516 {
 517         EDL *edl = get_edl();
 518         if( !edl ) return;
 519         int prev_command = engine->command->command;
 520 // stop transport
 521         if( prev_command != STOP && prev_command != COMMAND_NONE &&
 522             prev_command != SINGLE_FRAME_FWD && prev_command != SINGLE_FRAME_REWIND ) {
 523                 engine->que->send_command(STOP, CHANGE_NONE, 0, 0);
 524                 engine->interrupt_playback(0);
 525         }
 526         mwindow->gui->lock_window("PlayTransport::change_position");
 527         mwindow->goto_position(position);
 528         mwindow->gui->unlock_window();
 529 // restart command
 530         switch(prev_command) {
 531         case FAST_REWIND:
 532         case NORMAL_REWIND:
 533         case SLOW_REWIND:
 534         case SLOW_FWD:
 535         case NORMAL_FWD:
 536         case FAST_FWD:
 537                 engine->que->send_command(prev_command, CHANGE_NONE,
 538                                 get_edl(), 1, 1, using_inout, 0);
 539         }
 540 }
 541