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,
 155                         colormodel,
 156                         renderengine->get_edl());
 157         }
 158
 159         if(debug) printf("VRender::process_buffer %d video_out=%p\n", __LINE__, video_out);
 160
 161 // printf("VRender::process_buffer use_vconsole=%d colormodel=%d video_out=%p\n",
 162 // use_vconsole,
 163 // colormodel,
 164 // video_out);
 165 // Read directly from file to video_out
 166         if(!use_vconsole)
 167         {
 168
 169                 if(use_brender)
 170                 {
 171                         Asset *asset = renderengine->preferences->brender_asset;
 172                         File *file = renderengine->get_vcache()->check_out(asset,
 173                                 renderengine->get_edl());
 174
 175                         if(file)
 176                         {
 177                                 int64_t corrected_position = current_position;
 178                                 if(renderengine->command->get_direction() == PLAY_REVERSE)
 179                                         corrected_position--;
 180
 181 // Cache single frames only
 182 //                              if(use_asynchronous)
 183 //                                      file->start_video_decode_thread();
 184 //                              else
 185                                         file->stop_video_thread();
 186                                 if(use_cache) file->set_cache_frames(1);
 187                                 int64_t normalized_position = (int64_t)(corrected_position *
 188                                         asset->frame_rate /
 189                                         renderengine->get_edl()->session->frame_rate);
 190
 191                                 file->set_video_position(normalized_position,
 192                                         0);
 193                                 file->read_frame(video_out);
 194
 195
 196                                 if(use_cache) file->set_cache_frames(0);
 197                                 renderengine->get_vcache()->check_in(asset);
 198                         }
 199
 200                 }
 201                 else
 202                 if(playable_edit)
 203                 {
 204                         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 205                         result = ((VEdit*)playable_edit)->read_frame(video_out,
 206                                 current_position,
 207                                 renderengine->command->get_direction(),
 208                                 renderengine->get_vcache(),
 209                                 1,
 210                                 use_cache,
 211                                 0);
 212 //                              use_asynchronous);
 213                         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 214                 }
 215
 216
 217
 218                 video_out->set_opengl_state(VFrame::RAM);
 219         }
 220         else
 221 // Read into virtual console
 222         {
 223
 224 // process this buffer now in the virtual console
 225                 result = ((VirtualVConsole*)vconsole)->process_buffer(input_position,
 226                         use_opengl);
 227         }
 228
 229         return result;
 230 }
 231
 232 // Determine if virtual console is needed
 233 int VRender::get_use_vconsole(VEdit **playable_edit,
 234         int64_t position, int &use_brender)
 235 {
 236         *playable_edit = 0;
 237
 238 // Background rendering completed
 239         if((use_brender = renderengine->brender_available(position,
 240                 renderengine->command->get_direction())) != 0)
 241                 return 0;
 242
 243 // Descend into EDL nest
 244         return renderengine->get_edl()->get_use_vconsole(playable_edit,
 245                 position, renderengine->command->get_direction(),
 246                 vconsole->playable_tracks);
 247 }
 248
 249
 250 int VRender::get_colormodel(VEdit *playable_edit,
 251         int use_vconsole, int use_brender)
 252 {
 253         int colormodel = renderengine->get_edl()->session->color_model;
 254
 255         if(!use_vconsole && !renderengine->command->single_frame())
 256         {
 257 // Get best colormodel supported by the file
 258                 int driver = renderengine->config->vconfig->driver;
 259                 File *file;
 260                 Asset *asset;
 261
 262                 if(use_brender)
 263                 {
 264                         asset = renderengine->preferences->brender_asset;
 265                 }
 266                 else
 267                 {
 268                         int64_t source_position = 0;
 269                         asset = playable_edit->get_nested_asset(&source_position,
 270                                 current_position,
 271                                 renderengine->command->get_direction());
 272                 }
 273                 if( asset )
 274                 {
 275                         file = renderengine->get_vcache()->check_out(asset,
 276                                 renderengine->get_edl());
 277
 278                         if(file)
 279                         {
 280                                 colormodel = file->get_best_colormodel(driver);
 281 //printf("VRender::get_colormodel %d driver=%d colormodel=%d\n", __LINE__, driver, colormodel);
 282                                 renderengine->get_vcache()->check_in(asset);
 283                         }
 284 // ffmpeg files are side effected by color_model, affects colorspace,color_range
 285 //                      if( asset->format == FILE_FFMPEG && !BC_CModels::is_yuv(colormodel) )
 286 //                              colormodel = BC_BGR8888;
 287                 }
 288         }
 289
 290         return colormodel;
 291 }
 292
 293
 294
 295
 296
 297
 298
 299 void VRender::run()
 300 {
 301         int reconfigure;
 302         const int debug = 0;
 303
 304 // Want to know how many samples rendering each frame takes.
 305 // Then use this number to predict the next frame that should be rendered.
 306 // Be suspicious of frames that render late so have a countdown
 307 // before we start dropping.
 308         int64_t current_sample, start_sample, end_sample; // Absolute counts.
 309         int64_t skip_countdown = VRENDER_THRESHOLD;    // frames remaining until drop
 310         int64_t delay_countdown = 0;  // Frames remaining until delay
 311 // Number of frames before next reconfigure
 312         int64_t current_input_length;
 313 // Number of frames to skip.
 314         int64_t frame_step = 1;
 315         int use_opengl = (renderengine->video &&
 316                 renderengine->video->out_config->driver == PLAYBACK_X11_GL);
 317
 318         first_frame = 1;
 319
 320 // Number of frames since start of rendering
 321         session_frame = 0;
 322         framerate_counter = 0;
 323         framerate_timer.update();
 324
 325         start_lock->unlock();
 326         if(debug) printf("VRender::run %d\n", __LINE__);
 327
 328
 329         while(!done && !interrupt )
 330         {
 331 // Perform the most time consuming part of frame decompression now.
 332 // Want the condition before, since only 1 frame is rendered
 333 // and the number of frames skipped after this frame varies.
 334                 current_input_length = 1;
 335
 336                 reconfigure = vconsole->test_reconfigure(current_position,
 337                         current_input_length);
 338
 339
 340                 if(debug) printf("VRender::run %d\n", __LINE__);
 341                 if(reconfigure) restart_playback();
 342
 343                 if(debug) printf("VRender::run %d\n", __LINE__);
 344                 process_buffer(current_position, use_opengl);
 345
 346
 347                 if(debug) printf("VRender::run %d\n", __LINE__);
 348
 349                 if(renderengine->command->single_frame())
 350                 {
 351                         if(debug) printf("VRender::run %d\n", __LINE__);
 352                         flash_output();
 353                         frame_step = 1;
 354                         done = 1;
 355                 }
 356                 else
 357 // Perform synchronization
 358                 {
 359 // Determine the delay until the frame needs to be shown.
 360                         current_sample = (int64_t)(renderengine->sync_position() *
 361                                 renderengine->command->get_speed());
 362 // latest sample at which the frame can be shown.
 363                         end_sample = Units::tosamples(session_frame + 1,
 364                                 renderengine->get_edl()->session->sample_rate,
 365                                 renderengine->get_edl()->session->frame_rate);
 366 // earliest sample by which the frame needs to be shown.
 367                         start_sample = Units::tosamples(session_frame,
 368                                 renderengine->get_edl()->session->sample_rate,
 369                                 renderengine->get_edl()->session->frame_rate);
 370
 371                         if(first_frame || end_sample < current_sample)
 372                         {
 373 // Frame rendered late or this is the first frame.  Flash it now.
 374 //printf("VRender::run %d\n", __LINE__);
 375                                 flash_output();
 376
 377                                 if(renderengine->get_edl()->session->video_every_frame)
 378                                 {
 379 // User wants every frame.
 380                                         frame_step = 1;
 381                                 }
 382                                 else
 383                                 if(skip_countdown > 0)
 384                                 {
 385 // Maybe just a freak.
 386                                         frame_step = 1;
 387                                         skip_countdown--;
 388                                 }
 389                                 else
 390                                 {
 391 // Get the frames to skip.
 392                                         delay_countdown = VRENDER_THRESHOLD;
 393                                         frame_step = 1;
 394                                         frame_step += (int64_t)Units::toframes(current_sample,
 395                                                         renderengine->get_edl()->session->sample_rate,
 396                                                         renderengine->get_edl()->session->frame_rate);
 397                                         frame_step -= (int64_t)Units::toframes(end_sample,
 398                                                                 renderengine->get_edl()->session->sample_rate,
 399                                                                 renderengine->get_edl()->session->frame_rate);
 400                                 }
 401                         }
 402                         else
 403                         {
 404 // Frame rendered early or just in time.
 405                                 frame_step = 1;
 406
 407                                 if(delay_countdown > 0)
 408                                 {
 409 // Maybe just a freak
 410                                         delay_countdown--;
 411                                 }
 412                                 else
 413                                 {
 414                                         skip_countdown = VRENDER_THRESHOLD;
 415                                         if(start_sample > current_sample)
 416                                         {
 417                                                 int64_t delay_time = (int64_t)((float)(start_sample - current_sample) *
 418                                                         1000 / renderengine->get_edl()->session->sample_rate);
 419                                                 if( delay_time > 1000 ) delay_time = 1000;
 420                                                 timer.delay(delay_time);
 421                                         }
 422                                         else
 423                                         {
 424 // Came after the earliest sample so keep going
 425                                         }
 426                                 }
 427
 428 // Flash frame now.
 429 //printf("VRender::run %d %jd\n", __LINE__, current_input_length);
 430                                 flash_output();
 431                         }
 432                 }
 433                 if(debug) printf("VRender::run %d\n", __LINE__);
 434
 435 // Trigger audio to start
 436                 if(first_frame)
 437                 {
 438                         renderengine->first_frame_lock->unlock();
 439                         first_frame = 0;
 440                         renderengine->reset_sync_position();
 441                 }
 442                 if(debug) printf("VRender::run %d\n", __LINE__);
 443
 444                 session_frame += frame_step;
 445
 446 // advance position in project
 447                 current_input_length = frame_step;
 448
 449
 450 // Subtract frame_step in a loop to allow looped playback to drain
 451 // printf("VRender::run %d %d %d %d\n",
 452 // __LINE__,
 453 // done,
 454 // frame_step,
 455 // current_input_length);
 456                 while(frame_step && current_input_length)
 457                 {
 458 // trim current_input_length to range
 459                         get_boundaries(current_input_length);
 460 // advance 1 frame
 461                         advance_position(current_input_length);
 462                         frame_step -= current_input_length;
 463                         current_input_length = frame_step;
 464                         if(done) break;
 465 // printf("VRender::run %d %d %d %d\n",
 466 // __LINE__,
 467 // done,
 468 // frame_step,
 469 // current_input_length);
 470                 }
 471
 472                 if(debug) printf("VRender::run %d current_position=%jd done=%d\n",
 473                         __LINE__, current_position, done);
 474
 475 // Update tracking.
 476                 if(renderengine->command->realtime &&
 477                         renderengine->playback_engine &&
 478                         renderengine->command->command != CURRENT_FRAME)
 479                 {
 480                         renderengine->playback_engine->update_tracking(fromunits(current_position));
 481                 }
 482                 if(debug) printf("VRender::run %d\n", __LINE__);
 483
 484 // Calculate the framerate counter
 485                 framerate_counter++;
 486                 if(framerate_counter >= renderengine->get_edl()->session->frame_rate &&
 487                         renderengine->command->realtime)
 488                 {
 489                         renderengine->update_framerate((float)framerate_counter /
 490                                 ((float)framerate_timer.get_difference() / 1000));
 491                         framerate_counter = 0;
 492                         framerate_timer.update();
 493                 }
 494                 if(debug) printf("VRender::run %d done=%d\n", __LINE__, done);
 495                 if( !interrupt )
 496                         interrupt = renderengine->video->interrupt;
 497         }
 498
 499
 500 // In case we were interrupted before the first loop
 501         renderengine->first_frame_lock->unlock();
 502         stop_plugins();
 503         if(debug) printf("VRender::run %d done=%d\n", __LINE__, done);
 504 }
 505
 506 int VRender::start_playback()
 507 {
 508 // start reading input and sending to vrenderthread
 509 // use a thread only if there's a video device
 510         if(renderengine->command->realtime)
 511         {
 512                 start();
 513         }
 514         return 0;
 515 }
 516
 517 int64_t VRender::tounits(double position, int round)
 518 {
 519         if(round)
 520                 return Units::round(position * renderengine->get_edl()->session->frame_rate);
 521         else
 522                 return Units::to_int64(position * renderengine->get_edl()->session->frame_rate);
 523 }
 524
 525 double VRender::fromunits(int64_t position)
 526 {
 527         return (double)position / renderengine->get_edl()->session->frame_rate;
 528 }
 529