cinelerra-5.0/cinelerra/vrender.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2009 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 "asset.h"
  23 #include "bcsignals.h"
  24 #include "cache.h"
  25 #include "condition.h"
  26 #include "datatype.h"
  27 #include "edits.h"
  28 #include "edl.h"
  29 #include "edlsession.h"
  30 #include "file.h"
  31 #include "format.inc"
  32 #include "localsession.h"
  33 #include "mainsession.h"
  34 #include "mwindow.h"
  35 #include "overlayframe.h"
  36 #include "playabletracks.h"
  37 #include "playbackengine.h"
  38 #include "preferences.h"
  39 #include "preferencesthread.h"
  40 #include "renderengine.h"
  41 #include "strategies.inc"
  42 #include "tracks.h"
  43 #include "transportque.h"
  44 #include "units.h"
  45 #include "vedit.h"
  46 #include "vframe.h"
  47 #include "videoconfig.h"
  48 #include "videodevice.h"
  49 #include "virtualconsole.h"
  50 #include "virtualvconsole.h"
  51 #include "vmodule.h"
  52 #include "vrender.h"
  53 #include "vtrack.h"
  54
  55
  56
  57
  58
  59 VRender::VRender(RenderEngine *renderengine)
  60  : CommonRender(renderengine)
  61 {
  62         data_type = TRACK_VIDEO;
  63         transition_temp = 0;
  64         overlayer = new OverlayFrame(renderengine->preferences->processors);
  65         input_temp = 0;
  66         vmodule_render_fragment = 0;
  67         playback_buffer = 0;
  68         session_frame = 0;
  69         asynchronous = 0;     // render 1 frame at a time
  70         framerate_counter = 0;
  71         video_out = 0;
  72         render_strategy = -1;
  73 }
  74
  75 VRender::~VRender()
  76 {
  77         if(input_temp) delete input_temp;
  78         if(transition_temp) delete transition_temp;
  79         if(overlayer) delete overlayer;
  80 }
  81
  82
  83 VirtualConsole* VRender::new_vconsole_object()
  84 {
  85         return new VirtualVConsole(renderengine, this);
  86 }
  87
  88 int VRender::get_total_tracks()
  89 {
  90         return renderengine->get_edl()->tracks->total_video_tracks();
  91 }
  92
  93 Module* VRender::new_module(Track *track)
  94 {
  95         return new VModule(renderengine, this, 0, track);
  96 }
  97
  98 int VRender::flash_output()
  99 {
 100         if(video_out)
 101                 return renderengine->video->write_buffer(video_out, renderengine->get_edl());
 102         else
 103                 return 0;
 104 }
 105
 106 int VRender::process_buffer(VFrame *video_out,
 107         int64_t input_position,
 108         int use_opengl)
 109 {
 110 // process buffer for non realtime
 111         int64_t render_len = 1;
 112         int reconfigure = 0;
 113
 114
 115         this->video_out = video_out;
 116
 117         current_position = input_position;
 118
 119         reconfigure = vconsole->test_reconfigure(input_position,
 120                 render_len);
 121
 122         if(reconfigure) restart_playback();
 123         return process_buffer(input_position, use_opengl);
 124 }
 125
 126
 127 int VRender::process_buffer(int64_t input_position,
 128         int use_opengl)
 129 {
 130         VEdit *playable_edit = 0;
 131         int colormodel;
 132         int use_vconsole = 1;
 133         int use_brender = 0;
 134         int result = 0;
 135         int use_cache = renderengine->command->single_frame();
 136         int use_asynchronous =
 137                 renderengine->command->realtime &&
 138                 renderengine->get_edl()->session->video_every_frame &&
 139                 renderengine->get_edl()->session->video_asynchronous;
 140         const int debug = 0;
 141
 142 // Determine the rendering strategy for this frame.
 143         use_vconsole = get_use_vconsole(&playable_edit,
 144                 input_position,
 145                 use_brender);
 146         if(debug) printf("VRender::process_buffer %d use_vconsole=%d\n", __LINE__, use_vconsole);
 147
 148 // Negotiate color model
 149         colormodel = get_colormodel(playable_edit, use_vconsole, use_brender);
 150         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 151
 152
 153
 154
 155 // Get output buffer from device
 156         if(renderengine->command->realtime &&
 157                 !renderengine->is_nested)
 158         {
 159                 renderengine->video->new_output_buffer(&video_out, colormodel);
 160         }
 161
 162         if(debug) printf("VRender::process_buffer %d video_out=%p\n", __LINE__, video_out);
 163
 164 // printf("VRender::process_buffer use_vconsole=%d colormodel=%d video_out=%p\n",
 165 // use_vconsole,
 166 // colormodel,
 167 // video_out);
 168 // Read directly from file to video_out
 169         if(!use_vconsole)
 170         {
 171
 172                 if(use_brender)
 173                 {
 174                         Asset *asset = renderengine->preferences->brender_asset;
 175                         File *file = renderengine->get_vcache()->check_out(asset,
 176                                 renderengine->get_edl());
 177
 178                         if(file)
 179                         {
 180                                 int64_t corrected_position = current_position;
 181                                 if(renderengine->command->get_direction() == PLAY_REVERSE)
 182                                         corrected_position--;
 183
 184 // Cache single frames only
 185                                 if(use_asynchronous)
 186                                         file->start_video_decode_thread();
 187                                 else
 188                                         file->stop_video_thread();
 189                                 if(use_cache) file->set_cache_frames(1);
 190                                 int64_t normalized_position = (int64_t)(corrected_position *
 191                                         asset->frame_rate /
 192                                         renderengine->get_edl()->session->frame_rate);
 193
 194                                 file->set_video_position(normalized_position,
 195                                         0);
 196                                 file->read_frame(video_out);
 197
 198
 199                                 if(use_cache) file->set_cache_frames(0);
 200                                 renderengine->get_vcache()->check_in(asset);
 201                         }
 202
 203                 }
 204                 else
 205                 if(playable_edit)
 206                 {
 207                         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 208                         result = ((VEdit*)playable_edit)->read_frame(video_out,
 209                                 current_position,
 210                                 renderengine->command->get_direction(),
 211                                 renderengine->get_vcache(),
 212                                 1,
 213                                 use_cache,
 214                                 use_asynchronous);
 215                         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 216                 }
 217
 218
 219
 220                 video_out->set_opengl_state(VFrame::RAM);
 221         }
 222         else
 223 // Read into virtual console
 224         {
 225
 226 // process this buffer now in the virtual console
 227                 result = ((VirtualVConsole*)vconsole)->process_buffer(input_position,
 228                         use_opengl);
 229         }
 230
 231         return result;
 232 }
 233
 234 // Determine if virtual console is needed
 235 int VRender::get_use_vconsole(VEdit* *playable_edit,
 236         int64_t position, int &use_brender)
 237 {
 238         *playable_edit = 0;
 239
 240 // Background rendering completed
 241         if((use_brender = renderengine->brender_available(position,
 242                 renderengine->command->get_direction())) != 0)
 243                 return 0;
 244
 245 // Descend into EDL nest
 246         return renderengine->get_edl()->get_use_vconsole(playable_edit,
 247                 position,
 248                 renderengine->command->get_direction(),
 249                 vconsole->playable_tracks);
 250 }
 251
 252 int VRender::get_colormodel(VEdit *playable_edit,
 253         int use_vconsole, int use_brender)
 254 {
 255         int colormodel = renderengine->get_edl()->session->color_model;
 256
 257         if(!use_vconsole && !renderengine->command->single_frame())
 258         {
 259 // Get best colormodel supported by the file
 260                 int driver = renderengine->config->vconfig->driver;
 261                 File *file;
 262                 Asset *asset;
 263
 264                 if(use_brender)
 265                 {
 266                         asset = renderengine->preferences->brender_asset;
 267                 }
 268                 else
 269                 {
 270                         int64_t source_position = 0;
 271                         asset = playable_edit->get_nested_asset(&source_position,
 272                                 current_position,
 273                                 renderengine->command->get_direction());
 274                 }
 275
 276                 if(asset)
 277                 {
 278                         file = renderengine->get_vcache()->check_out(asset,
 279                                 renderengine->get_edl());
 280
 281                         if(file)
 282                         {
 283                                 colormodel = file->get_best_colormodel(driver);
 284                                 renderengine->get_vcache()->check_in(asset);
 285                         }
 286                 }
 287         }
 288
 289         return colormodel;
 290 }
 291
 292
 293
 294
 295
 296
 297
 298 void VRender::run()
 299 {
 300         int reconfigure;
 301         const int debug = 0;
 302
 303 // Want to know how many samples rendering each frame takes.
 304 // Then use this number to predict the next frame that should be rendered.
 305 // Be suspicious of frames that render late so have a countdown
 306 // before we start dropping.
 307         int64_t current_sample, start_sample, end_sample; // Absolute counts.
 308         int64_t skip_countdown = VRENDER_THRESHOLD;    // frames remaining until drop
 309         int64_t delay_countdown = VRENDER_THRESHOLD;  // Frames remaining until delay
 310 // Number of frames before next reconfigure
 311         int64_t current_input_length;
 312 // Number of frames to skip.
 313         int64_t frame_step = 1;
 314         int use_opengl = (renderengine->video &&
 315                 renderengine->video->out_config->driver == PLAYBACK_X11_GL);
 316
 317         first_frame = 1;
 318
 319 // Number of frames since start of rendering
 320         session_frame = 0;
 321         framerate_counter = 0;
 322         framerate_timer.update();
 323
 324         start_lock->unlock();
 325         if(debug) printf("VRender::run %d\n", __LINE__);
 326
 327
 328         while(!done && !interrupt )
 329         {
 330 // Perform the most time consuming part of frame decompression now.
 331 // Want the condition before, since only 1 frame is rendered
 332 // and the number of frames skipped after this frame varies.
 333                 current_input_length = 1;
 334
 335                 reconfigure = vconsole->test_reconfigure(current_position,
 336                         current_input_length);
 337
 338
 339                 if(debug) printf("VRender::run %d\n", __LINE__);
 340                 if(reconfigure) restart_playback();
 341
 342                 if(debug) printf("VRender::run %d\n", __LINE__);
 343                 process_buffer(current_position, use_opengl);
 344
 345
 346                 if(debug) printf("VRender::run %d\n", __LINE__);
 347
 348                 if(renderengine->command->single_frame())
 349                 {
 350                         if(debug) printf("VRender::run %d\n", __LINE__);
 351                         flash_output();
 352                         frame_step = 1;
 353                         done = 1;
 354                 }
 355                 else
 356 // Perform synchronization
 357                 {
 358 // Determine the delay until the frame needs to be shown.
 359                         current_sample = (int64_t)(renderengine->sync_position() *
 360                                 renderengine->command->get_speed());
 361 // latest sample at which the frame can be shown.
 362                         end_sample = Units::tosamples(session_frame,
 363                                 renderengine->get_edl()->session->sample_rate,
 364                                 renderengine->get_edl()->session->frame_rate);
 365 // earliest sample by which the frame needs to be shown.
 366                         start_sample = Units::tosamples(session_frame - 1,
 367                                 renderengine->get_edl()->session->sample_rate,
 368                                 renderengine->get_edl()->session->frame_rate);
 369
 370                         if(first_frame || end_sample < current_sample)
 371                         {
 372 // Frame rendered late or this is the first frame.  Flash it now.
 373 //printf("VRender::run %d\n", __LINE__);
 374                                 flash_output();
 375
 376                                 if(renderengine->get_edl()->session->video_every_frame)
 377                                 {
 378 // User wants every frame.
 379                                         frame_step = 1;
 380                                 }
 381                                 else
 382                                 if(skip_countdown > 0)
 383                                 {
 384 // Maybe just a freak.
 385                                         frame_step = 1;
 386                                         skip_countdown--;
 387                                 }
 388                                 else
 389                                 {
 390 // Get the frames to skip.
 391                                         delay_countdown = VRENDER_THRESHOLD;
 392                                         frame_step = 1;
 393                                         frame_step += (int64_t)Units::toframes(current_sample,
 394                                                         renderengine->get_edl()->session->sample_rate,
 395                                                         renderengine->get_edl()->session->frame_rate);
 396                                         frame_step -= (int64_t)Units::toframes(end_sample,
 397                                                                 renderengine->get_edl()->session->sample_rate,
 398                                                                 renderengine->get_edl()->session->frame_rate);
 399                                 }
 400                         }
 401                         else
 402                         {
 403 // Frame rendered early or just in time.
 404                                 frame_step = 1;
 405
 406                                 if(delay_countdown > 0)
 407                                 {
 408 // Maybe just a freak
 409                                         delay_countdown--;
 410                                 }
 411                                 else
 412                                 {
 413                                         skip_countdown = VRENDER_THRESHOLD;
 414                                         if(start_sample > current_sample)
 415                                         {
 416                                                 int64_t delay_time = (int64_t)((float)(start_sample - current_sample) *
 417                                                         1000 / renderengine->get_edl()->session->sample_rate);
 418                                                 if( delay_time > 1000 ) delay_time = 1000;
 419                                                 timer.delay(delay_time);
 420                                         }
 421                                         else
 422                                         {
 423 // Came after the earliest sample so keep going
 424                                         }
 425                                 }
 426
 427 // Flash frame now.
 428 //printf("VRender::run %d " _LD "\n", __LINE__, current_input_length);
 429                                 flash_output();
 430                         }
 431                 }
 432                 if(debug) printf("VRender::run %d\n", __LINE__);
 433
 434 // Trigger audio to start
 435                 if(first_frame)
 436                 {
 437                         renderengine->first_frame_lock->unlock();
 438                         first_frame = 0;
 439                         renderengine->reset_sync_position();
 440                 }
 441                 if(debug) printf("VRender::run %d\n", __LINE__);
 442
 443                 session_frame += frame_step;
 444
 445 // advance position in project
 446                 current_input_length = frame_step;
 447
 448
 449 // Subtract frame_step in a loop to allow looped playback to drain
 450 // printf("VRender::run %d %d %d %d\n",
 451 // __LINE__,
 452 // done,
 453 // frame_step,
 454 // current_input_length);
 455                 while(frame_step && current_input_length)
 456                 {
 457 // trim current_input_length to range
 458                         get_boundaries(current_input_length);
 459 // advance 1 frame
 460                         advance_position(current_input_length);
 461                         frame_step -= current_input_length;
 462                         current_input_length = frame_step;
 463                         if(done) break;
 464 // printf("VRender::run %d %d %d %d\n",
 465 // __LINE__,
 466 // done,
 467 // frame_step,
 468 // current_input_length);
 469                 }
 470
 471                 if(debug) printf("VRender::run %d current_position=" _LD " done=%d\n",
 472                         __LINE__, current_position, done);
 473
 474 // Update tracking.
 475                 if(renderengine->command->realtime &&
 476                         renderengine->playback_engine &&
 477                         renderengine->command->command != CURRENT_FRAME)
 478                 {
 479                         renderengine->playback_engine->update_tracking(fromunits(current_position));
 480                 }
 481                 if(debug) printf("VRender::run %d\n", __LINE__);
 482
 483 // Calculate the framerate counter
 484                 framerate_counter++;
 485                 if(framerate_counter >= renderengine->get_edl()->session->frame_rate &&
 486                         renderengine->command->realtime)
 487                 {
 488                         renderengine->update_framerate((float)framerate_counter /
 489                                 ((float)framerate_timer.get_difference() / 1000));
 490                         framerate_counter = 0;
 491                         framerate_timer.update();
 492                 }
 493                 if(debug) printf("VRender::run %d done=%d\n", __LINE__, done);
 494                 if( !interrupt )
 495                         interrupt = renderengine->video->interrupt;
 496         }
 497
 498
 499 // In case we were interrupted before the first loop
 500         renderengine->first_frame_lock->unlock();
 501         stop_plugins();
 502         if(debug) printf("VRender::run %d done=%d\n", __LINE__, done);
 503 }
 504
 505 int VRender::start_playback()
 506 {
 507 // start reading input and sending to vrenderthread
 508 // use a thread only if there's a video device
 509         if(renderengine->command->realtime)
 510         {
 511                 start();
 512         }
 513         return 0;
 514 }
 515
 516 int64_t VRender::tounits(double position, int round)
 517 {
 518         if(round)
 519                 return Units::round(position * renderengine->get_edl()->session->frame_rate);
 520         else
 521                 return Units::to_int64(position * renderengine->get_edl()->session->frame_rate);
 522 }
 523
 524 double VRender::fromunits(int64_t position)
 525 {
 526         return (double)position / renderengine->get_edl()->session->frame_rate;
 527 }
 528
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