cinelerra-5.1/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 "clip.h"
  26 #include "condition.h"
  27 #include "datatype.h"
  28 #include "edits.h"
  29 #include "edl.h"
  30 #include "edlsession.h"
  31 #include "file.h"
  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, input_position, use_brender);
 144         if(debug) printf("VRender::process_buffer %d use_vconsole=%d\n", __LINE__, use_vconsole);
 145
 146 // Negotiate color model
 147         colormodel = get_colormodel(playable_edit, use_vconsole, use_brender);
 148         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 149
 150
 151 // Get output buffer from device
 152         if(renderengine->command->realtime && !renderengine->is_nested)
 153         {
 154                 renderengine->video->new_output_buffer(&video_out, colormodel);
 155         }
 156
 157         if(debug) printf("VRender::process_buffer %d video_out=%p\n", __LINE__, video_out);
 158
 159 // printf("VRender::process_buffer use_vconsole=%d colormodel=%d video_out=%p\n",
 160 // use_vconsole,
 161 // colormodel,
 162 // video_out);
 163 // Read directly from file to video_out
 164         if(!use_vconsole)
 165         {
 166
 167                 if(use_brender)
 168                 {
 169                         Asset *asset = renderengine->preferences->brender_asset;
 170                         File *file = renderengine->get_vcache()->check_out(asset,
 171                                 renderengine->get_edl());
 172
 173                         if(file)
 174                         {
 175                                 int64_t corrected_position = current_position;
 176                                 if(renderengine->command->get_direction() == PLAY_REVERSE)
 177                                         corrected_position--;
 178
 179 // Cache single frames only
 180                                 if(use_asynchronous)
 181                                         file->start_video_decode_thread();
 182                                 else
 183                                         file->stop_video_thread();
 184                                 if(use_cache) file->set_cache_frames(1);
 185                                 int64_t normalized_position = (int64_t)(corrected_position *
 186                                         asset->frame_rate /
 187                                         renderengine->get_edl()->session->frame_rate);
 188
 189                                 file->set_video_position(normalized_position,
 190                                         0);
 191                                 file->read_frame(video_out);
 192
 193
 194                                 if(use_cache) file->set_cache_frames(0);
 195                                 renderengine->get_vcache()->check_in(asset);
 196                         }
 197
 198                 }
 199                 else
 200                 if(playable_edit)
 201                 {
 202                         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 203                         result = ((VEdit*)playable_edit)->read_frame(video_out,
 204                                 current_position,
 205                                 renderengine->command->get_direction(),
 206                                 renderengine->get_vcache(),
 207                                 1,
 208                                 use_cache,
 209                                 use_asynchronous);
 210                         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 211                 }
 212
 213
 214
 215                 video_out->set_opengl_state(VFrame::RAM);
 216         }
 217         else
 218 // Read into virtual console
 219         {
 220
 221 // process this buffer now in the virtual console
 222                 result = ((VirtualVConsole*)vconsole)->process_buffer(input_position,
 223                         use_opengl);
 224         }
 225
 226         return result;
 227 }
 228
 229 // Determine if virtual console is needed
 230 int VRender::get_use_vconsole(VEdit **playable_edit,
 231         int64_t position, int &use_brender)
 232 {
 233         *playable_edit = 0;
 234
 235 // Background rendering completed
 236         if((use_brender = renderengine->brender_available(position,
 237                 renderengine->command->get_direction())) != 0)
 238                 return 0;
 239
 240 // Descend into EDL nest
 241         return renderengine->get_edl()->get_use_vconsole(playable_edit,
 242                 position, renderengine->command->get_direction(),
 243                 vconsole->playable_tracks);
 244 }
 245
 246
 247 int VRender::get_colormodel(VEdit *playable_edit,
 248         int use_vconsole, int use_brender)
 249 {
 250         int colormodel = renderengine->get_edl()->session->color_model;
 251
 252         if(!use_vconsole && !renderengine->command->single_frame())
 253         {
 254 // Get best colormodel supported by the file
 255                 int driver = renderengine->config->vconfig->driver;
 256                 File *file;
 257                 Asset *asset;
 258
 259                 if(use_brender)
 260                 {
 261                         asset = renderengine->preferences->brender_asset;
 262                 }
 263                 else
 264                 {
 265                         int64_t source_position = 0;
 266                         asset = playable_edit->get_nested_asset(&source_position,
 267                                 current_position,
 268                                 renderengine->command->get_direction());
 269                 }
 270 // ffmpeg files are side effected by color_model, affects colorspace,color_range
 271                 if( asset && asset->format != FILE_FFMPEG )
 272                 {
 273                         file = renderengine->get_vcache()->check_out(asset,
 274                                 renderengine->get_edl());
 275
 276                         if(file)
 277                         {
 278                                 colormodel = file->get_best_colormodel(driver);
 279                                 renderengine->get_vcache()->check_in(asset);
 280                         }
 281                 }
 282         }
 283
 284         return colormodel;
 285 }
 286
 287
 288
 289
 290
 291
 292
 293 void VRender::run()
 294 {
 295         int reconfigure;
 296         const int debug = 0;
 297
 298 // Want to know how many samples rendering each frame takes.
 299 // Then use this number to predict the next frame that should be rendered.
 300 // Be suspicious of frames that render late so have a countdown
 301 // before we start dropping.
 302         int64_t current_sample, start_sample, end_sample; // Absolute counts.
 303         int64_t skip_countdown = VRENDER_THRESHOLD;    // frames remaining until drop
 304         int64_t delay_countdown = VRENDER_THRESHOLD;  // Frames remaining until delay
 305 // Number of frames before next reconfigure
 306         int64_t current_input_length;
 307 // Number of frames to skip.
 308         int64_t frame_step = 1;
 309         int use_opengl = (renderengine->video &&
 310                 renderengine->video->out_config->driver == PLAYBACK_X11_GL);
 311
 312         first_frame = 1;
 313
 314 // Number of frames since start of rendering
 315         session_frame = 0;
 316         framerate_counter = 0;
 317         framerate_timer.update();
 318
 319         start_lock->unlock();
 320         if(debug) printf("VRender::run %d\n", __LINE__);
 321
 322
 323         while(!done && !interrupt )
 324         {
 325 // Perform the most time consuming part of frame decompression now.
 326 // Want the condition before, since only 1 frame is rendered
 327 // and the number of frames skipped after this frame varies.
 328                 current_input_length = 1;
 329
 330                 reconfigure = vconsole->test_reconfigure(current_position,
 331                         current_input_length);
 332
 333
 334                 if(debug) printf("VRender::run %d\n", __LINE__);
 335                 if(reconfigure) restart_playback();
 336
 337                 if(debug) printf("VRender::run %d\n", __LINE__);
 338                 process_buffer(current_position, use_opengl);
 339
 340
 341                 if(debug) printf("VRender::run %d\n", __LINE__);
 342
 343                 if(renderengine->command->single_frame())
 344                 {
 345                         if(debug) printf("VRender::run %d\n", __LINE__);
 346                         flash_output();
 347                         frame_step = 1;
 348                         done = 1;
 349                 }
 350                 else
 351 // Perform synchronization
 352                 {
 353 // Determine the delay until the frame needs to be shown.
 354                         current_sample = (int64_t)(renderengine->sync_position() *
 355                                 renderengine->command->get_speed());
 356 // latest sample at which the frame can be shown.
 357                         end_sample = Units::tosamples(session_frame,
 358                                 renderengine->get_edl()->session->sample_rate,
 359                                 renderengine->get_edl()->session->frame_rate);
 360 // earliest sample by which the frame needs to be shown.
 361                         start_sample = Units::tosamples(session_frame - 1,
 362                                 renderengine->get_edl()->session->sample_rate,
 363                                 renderengine->get_edl()->session->frame_rate);
 364
 365                         if(first_frame || end_sample < current_sample)
 366                         {
 367 // Frame rendered late or this is the first frame.  Flash it now.
 368 //printf("VRender::run %d\n", __LINE__);
 369                                 flash_output();
 370
 371                                 if(renderengine->get_edl()->session->video_every_frame)
 372                                 {
 373 // User wants every frame.
 374                                         frame_step = 1;
 375                                 }
 376                                 else
 377                                 if(skip_countdown > 0)
 378                                 {
 379 // Maybe just a freak.
 380                                         frame_step = 1;
 381                                         skip_countdown--;
 382                                 }
 383                                 else
 384                                 {
 385 // Get the frames to skip.
 386                                         delay_countdown = VRENDER_THRESHOLD;
 387                                         frame_step = 1;
 388                                         frame_step += (int64_t)Units::toframes(current_sample,
 389                                                         renderengine->get_edl()->session->sample_rate,
 390                                                         renderengine->get_edl()->session->frame_rate);
 391                                         frame_step -= (int64_t)Units::toframes(end_sample,
 392                                                                 renderengine->get_edl()->session->sample_rate,
 393                                                                 renderengine->get_edl()->session->frame_rate);
 394                                 }
 395                         }
 396                         else
 397                         {
 398 // Frame rendered early or just in time.
 399                                 frame_step = 1;
 400
 401                                 if(delay_countdown > 0)
 402                                 {
 403 // Maybe just a freak
 404                                         delay_countdown--;
 405                                 }
 406                                 else
 407                                 {
 408                                         skip_countdown = VRENDER_THRESHOLD;
 409                                         if(start_sample > current_sample)
 410                                         {
 411                                                 int64_t delay_time = (int64_t)((float)(start_sample - current_sample) *
 412                                                         1000 / renderengine->get_edl()->session->sample_rate);
 413                                                 if( delay_time > 1000 ) delay_time = 1000;
 414                                                 timer.delay(delay_time);
 415                                         }
 416                                         else
 417                                         {
 418 // Came after the earliest sample so keep going
 419                                         }
 420                                 }
 421
 422 // Flash frame now.
 423 //printf("VRender::run %d %jd\n", __LINE__, current_input_length);
 424                                 flash_output();
 425                         }
 426                 }
 427                 if(debug) printf("VRender::run %d\n", __LINE__);
 428
 429 // Trigger audio to start
 430                 if(first_frame)
 431                 {
 432                         renderengine->first_frame_lock->unlock();
 433                         first_frame = 0;
 434                         renderengine->reset_sync_position();
 435                 }
 436                 if(debug) printf("VRender::run %d\n", __LINE__);
 437
 438                 session_frame += frame_step;
 439
 440 // advance position in project
 441                 current_input_length = frame_step;
 442
 443
 444 // Subtract frame_step in a loop to allow looped playback to drain
 445 // printf("VRender::run %d %d %d %d\n",
 446 // __LINE__,
 447 // done,
 448 // frame_step,
 449 // current_input_length);
 450                 while(frame_step && current_input_length)
 451                 {
 452 // trim current_input_length to range
 453                         get_boundaries(current_input_length);
 454 // advance 1 frame
 455                         advance_position(current_input_length);
 456                         frame_step -= current_input_length;
 457                         current_input_length = frame_step;
 458                         if(done) break;
 459 // printf("VRender::run %d %d %d %d\n",
 460 // __LINE__,
 461 // done,
 462 // frame_step,
 463 // current_input_length);
 464                 }
 465
 466                 if(debug) printf("VRender::run %d current_position=%jd done=%d\n",
 467                         __LINE__, current_position, done);
 468
 469 // Update tracking.
 470                 if(renderengine->command->realtime &&
 471                         renderengine->playback_engine &&
 472                         renderengine->command->command != CURRENT_FRAME)
 473                 {
 474                         renderengine->playback_engine->update_tracking(fromunits(current_position));
 475                 }
 476                 if(debug) printf("VRender::run %d\n", __LINE__);
 477
 478 // Calculate the framerate counter
 479                 framerate_counter++;
 480                 if(framerate_counter >= renderengine->get_edl()->session->frame_rate &&
 481                         renderengine->command->realtime)
 482                 {
 483                         renderengine->update_framerate((float)framerate_counter /
 484                                 ((float)framerate_timer.get_difference() / 1000));
 485                         framerate_counter = 0;
 486                         framerate_timer.update();
 487                 }
 488                 if(debug) printf("VRender::run %d done=%d\n", __LINE__, done);
 489                 if( !interrupt )
 490                         interrupt = renderengine->video->interrupt;
 491         }
 492
 493
 494 // In case we were interrupted before the first loop
 495         renderengine->first_frame_lock->unlock();
 496         stop_plugins();
 497         if(debug) printf("VRender::run %d done=%d\n", __LINE__, done);
 498 }
 499
 500 int VRender::start_playback()
 501 {
 502 // start reading input and sending to vrenderthread
 503 // use a thread only if there's a video device
 504         if(renderengine->command->realtime)
 505         {
 506                 start();
 507         }
 508         return 0;
 509 }
 510
 511 int64_t VRender::tounits(double position, int round)
 512 {
 513         if(round)
 514                 return Units::round(position * renderengine->get_edl()->session->frame_rate);
 515         else
 516                 return Units::to_int64(position * renderengine->get_edl()->session->frame_rate);
 517 }
 518
 519 double VRender::fromunits(int64_t position)
 520 {
 521         return (double)position / renderengine->get_edl()->session->frame_rate;
 522 }
 523