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 "canvas.h"
  26 #include "clip.h"
  27 #include "condition.h"
  28 #include "datatype.h"
  29 #include "edits.h"
  30 #include "edl.h"
  31 #include "edlsession.h"
  32 #include "file.h"
  33 #include "localsession.h"
  34 #include "mainsession.h"
  35 #include "mwindow.h"
  36 #include "overlayframe.h"
  37 #include "playabletracks.h"
  38 #include "playbackengine.h"
  39 #include "preferences.h"
  40 #include "preferencesthread.h"
  41 #include "renderengine.h"
  42 #include "strategies.inc"
  43 #include "tracks.h"
  44 #include "transportque.h"
  45 #include "units.h"
  46 #include "vedit.h"
  47 #include "vframe.h"
  48 #include "videoconfig.h"
  49 #include "videodevice.h"
  50 #include "virtualconsole.h"
  51 #include "virtualvconsole.h"
  52 #include "vmodule.h"
  53 #include "vrender.h"
  54 #include "vtrack.h"
  55
  56
  57
  58
  59
  60 VRender::VRender(RenderEngine *renderengine)
  61  : CommonRender(renderengine)
  62 {
  63         data_type = TRACK_VIDEO;
  64         transition_temp = 0;
  65         overlayer = new OverlayFrame(renderengine->preferences->project_smp);
  66         input_temp = 0;
  67         vmodule_render_fragment = 0;
  68         playback_buffer = 0;
  69         session_frame = 0;
  70         asynchronous = 0;     // render 1 frame at a time
  71         framerate_counter = 0;
  72         video_out = 0;
  73         render_strategy = -1;
  74 }
  75
  76 VRender::~VRender()
  77 {
  78         renderengine->wait_done();
  79         delete overlayer;
  80         delete input_temp;
  81         delete transition_temp;
  82 }
  83
  84
  85 VirtualConsole* VRender::new_vconsole_object()
  86 {
  87         return new VirtualVConsole(renderengine, this);
  88 }
  89
  90 int VRender::get_total_tracks()
  91 {
  92         return renderengine->get_edl()->tracks->total_video_tracks();
  93 }
  94
  95 Module* VRender::new_module(Track *track)
  96 {
  97         return new VModule(renderengine, this, 0, track);
  98 }
  99
 100 int VRender::flash_output()
 101 {
 102         if( !video_out ) return 0;
 103         renderengine->update_scope(video_out);
 104         return renderengine->video->write_buffer(video_out, renderengine->get_edl());
 105 }
 106
 107 int VRender::process_buffer(VFrame *video_out,
 108         int64_t input_position,
 109         int use_opengl)
 110 {
 111 // process buffer for non realtime
 112         int64_t render_len = 1;
 113         int reconfigure = 0;
 114
 115
 116         this->video_out = video_out;
 117
 118         current_position = input_position;
 119
 120         reconfigure = vconsole->test_reconfigure(input_position,
 121                 render_len);
 122
 123         if(reconfigure) restart_playback();
 124         return process_buffer(input_position, use_opengl);
 125 }
 126
 127
 128 int VRender::process_buffer(int64_t input_position,
 129         int use_opengl)
 130 {
 131         VEdit *playable_edit = 0;
 132         int colormodel;
 133         int use_vconsole = 1;
 134         int use_brender = 0;
 135         int result = 0;
 136         int use_cache = renderengine->command->single_frame() ? 1 :
 137                 renderengine->command->get_direction() == PLAY_REVERSE ? -1 : 0;
 138 //      int use_asynchronous =
 139 //              renderengine->command->realtime &&
 140 //              renderengine->get_edl()->session->video_every_frame &&
 141 //              renderengine->get_edl()->session->video_asynchronous;
 142         const int debug = 0;
 143
 144 // Determine the rendering strategy for this frame.
 145         use_vconsole = get_use_vconsole(&playable_edit, input_position, 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 // Get output buffer from device
 154         if(renderengine->command->realtime && !renderengine->is_nested)
 155         {
 156                 renderengine->video->new_output_buffer(&video_out,
 157                         colormodel,
 158                         renderengine->get_edl());
 159         }
 160
 161         if(debug) printf("VRender::process_buffer %d video_out=%p\n", __LINE__, video_out);
 162
 163 // printf("VRender::process_buffer use_vconsole=%d colormodel=%d video_out=%p\n",
 164 // use_vconsole,
 165 // colormodel,
 166 // video_out);
 167 // Read directly from file to video_out
 168         if(!use_vconsole)
 169         {
 170
 171                 if(use_brender)
 172                 {
 173                         Asset *asset = renderengine->preferences->brender_asset;
 174                         File *file = renderengine->get_vcache()->check_out(asset,
 175                                 renderengine->get_edl());
 176
 177                         if(file)
 178                         {
 179                                 int64_t corrected_position = current_position;
 180                                 if(renderengine->command->get_direction() == PLAY_REVERSE)
 181                                         corrected_position--;
 182
 183 // Cache single frames only
 184 //                              if(use_asynchronous)
 185 //                                      file->start_video_decode_thread();
 186 //                              else
 187                                         file->stop_video_thread();
 188                                 if(use_cache) file->set_cache_frames(1);
 189                                 int64_t normalized_position = (int64_t)(corrected_position *
 190                                         asset->frame_rate /
 191                                         renderengine->get_edl()->session->frame_rate);
 192
 193                                 file->set_video_position(normalized_position,
 194                                         0);
 195                                 file->read_frame(video_out);
 196
 197
 198                                 if(use_cache) file->set_cache_frames(0);
 199                                 renderengine->get_vcache()->check_in(asset);
 200                         }
 201
 202                 }
 203                 else
 204                 if(playable_edit)
 205                 {
 206                         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 207                         result = ((VEdit*)playable_edit)->read_frame(video_out,
 208                                 current_position,
 209                                 renderengine->command->get_direction(),
 210                                 renderengine->get_vcache(),
 211                                 1,
 212                                 use_cache,
 213                                 0);
 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, renderengine->command->get_direction(),
 248                 vconsole->playable_tracks);
 249 }
 250
 251
 252 int VRender::get_colormodel(VEdit *playable_edit, int use_vconsole, int use_brender)
 253 {
 254         EDL *edl = renderengine->get_edl();
 255         int colormodel = renderengine->get_edl()->session->color_model;
 256         VideoOutConfig *vconfig = renderengine->config->vconfig;
 257 // check for playback: no plugins, not single frame
 258         if( !use_vconsole && !renderengine->command->single_frame() ) {
 259 // Get best colormodel supported by the file
 260 // colormodel yuv/rgb affects mpeg/jpeg color range,
 261 // dont mix them or loose color acccuracy
 262                 int64_t source_position = 0;
 263                 Asset *asset = use_brender ?
 264                         renderengine->preferences->brender_asset :
 265                         playable_edit->get_nested_asset(&source_position, current_position,
 266                                 renderengine->command->get_direction());
 267                 if( asset ) {
 268                         File *file = renderengine->get_vcache()->check_out(asset, edl);
 269                         if( file ) {
 270 // damn the color range, full speed ahead
 271                                 if( vconfig->driver == PLAYBACK_X11 && vconfig->use_direct_x11 &&
 272                                     file->colormodel_supported(BC_BGR8888) == BC_BGR8888 )
 273                                         colormodel = BC_BGR8888;
 274                                 else {
 275 // file favorite colormodel may mismatch rgb/yuv
 276                                         int vstream = playable_edit ? playable_edit->channel : -1;
 277                                         int best_colormodel = file->get_best_colormodel(vconfig->driver, vstream);
 278                                         if( BC_CModels::is_yuv(best_colormodel) == BC_CModels::is_yuv(colormodel) )
 279                                                 colormodel = best_colormodel;
 280                                 }
 281                                 renderengine->get_vcache()->check_in(asset);
 282                         }
 283                 }
 284         }
 285
 286         return colormodel;
 287 }
 288
 289
 290 void VRender::run()
 291 {
 292         int reconfigure = 1;
 293         const int debug = 0;
 294
 295 // Want to know how many samples rendering each frame takes.
 296 // Then use this number to predict the next frame that should be rendered.
 297 // Be suspicious of frames that render late so have a countdown
 298 // before we start dropping.
 299         int64_t current_sample, start_sample, end_sample; // Absolute counts.
 300         int64_t skip_countdown = VRENDER_THRESHOLD;    // frames remaining until drop
 301         int64_t delay_countdown = 0;  // Frames remaining until delay
 302 // Number of frames before next reconfigure
 303         int64_t current_input_length;
 304 // Number of frames to skip.
 305         int64_t frame_step = 1;
 306         int use_opengl = (renderengine->video &&
 307                 renderengine->video->out_config->driver == PLAYBACK_X11_GL);
 308
 309         first_frame = 1;
 310
 311 // Number of frames since start of rendering
 312         session_frame = 0;
 313         framerate_counter = 0;
 314         framerate_timer.update();
 315
 316         start_lock->unlock();
 317         if(debug) printf("VRender::run %d\n", __LINE__);
 318
 319
 320         while(!done && !interrupt )
 321         {
 322 // Perform the most time consuming part of frame decompression now.
 323 // Want the condition before, since only 1 frame is rendered
 324 // and the number of frames skipped after this frame varies.
 325                 current_input_length = 1;
 326                 if( !reconfigure ) reconfigure =
 327                         vconsole->test_reconfigure(current_position, current_input_length);
 328                 if(debug) printf("VRender::run %d\n", __LINE__);
 329                 if( reconfigure ) {
 330                         restart_playback();
 331                         reconfigure = 0;
 332                 }
 333
 334                 if(debug) printf("VRender::run %d\n", __LINE__);
 335                 process_buffer(current_position, use_opengl);
 336
 337
 338                 if(debug) printf("VRender::run %d\n", __LINE__);
 339
 340                 if(renderengine->command->single_frame())
 341                 {
 342                         if(debug) printf("VRender::run %d\n", __LINE__);
 343                         flash_output();
 344                         frame_step = 1;
 345                         done = 1;
 346                 }
 347                 else
 348 // Perform synchronization
 349                 {
 350 // Determine the delay until the frame needs to be shown.
 351                         current_sample = (int64_t)(renderengine->sync_position() *
 352                                 renderengine->command->get_speed());
 353 // latest sample at which the frame can be shown.
 354                         end_sample = Units::tosamples(session_frame + 1,
 355                                 renderengine->get_edl()->session->sample_rate,
 356                                 renderengine->get_edl()->session->frame_rate);
 357 // earliest sample by which the frame needs to be shown.
 358                         start_sample = Units::tosamples(session_frame,
 359                                 renderengine->get_edl()->session->sample_rate,
 360                                 renderengine->get_edl()->session->frame_rate);
 361
 362                         if(first_frame || end_sample < current_sample)
 363                         {
 364 // Frame rendered late or this is the first frame.  Flash it now.
 365 //printf("VRender::run %d\n", __LINE__);
 366                                 flash_output();
 367
 368                                 if(renderengine->get_edl()->session->video_every_frame)
 369                                 {
 370 // User wants every frame.
 371                                         frame_step = 1;
 372                                 }
 373                                 else
 374                                 if(skip_countdown > 0)
 375                                 {
 376 // Maybe just a freak.
 377                                         frame_step = 1;
 378                                         skip_countdown--;
 379                                 }
 380                                 else
 381                                 {
 382 // Get the frames to skip.
 383                                         delay_countdown = VRENDER_THRESHOLD;
 384                                         frame_step = 1;
 385                                         frame_step += (int64_t)Units::toframes(current_sample,
 386                                                         renderengine->get_edl()->session->sample_rate,
 387                                                         renderengine->get_edl()->session->frame_rate);
 388                                         frame_step -= (int64_t)Units::toframes(end_sample,
 389                                                                 renderengine->get_edl()->session->sample_rate,
 390                                                                 renderengine->get_edl()->session->frame_rate);
 391                                 }
 392                         }
 393                         else
 394                         {
 395 // Frame rendered early or just in time.
 396                                 frame_step = 1;
 397
 398                                 if(delay_countdown > 0)
 399                                 {
 400 // Maybe just a freak
 401                                         delay_countdown--;
 402                                 }
 403                                 else
 404                                 {
 405                                         skip_countdown = VRENDER_THRESHOLD;
 406                                         if(start_sample > current_sample)
 407                                         {
 408                                                 int64_t delay_time = (int64_t)((float)(start_sample - current_sample) *
 409                                                         1000 / renderengine->get_edl()->session->sample_rate);
 410                                                 if( delay_time > 1000 ) delay_time = 1000;
 411                                                 timer.delay(delay_time);
 412                                         }
 413                                         else
 414                                         {
 415 // Came after the earliest sample so keep going
 416                                         }
 417                                 }
 418
 419 // Flash frame now.
 420 //printf("VRender::run %d %jd\n", __LINE__, current_input_length);
 421                                 flash_output();
 422                         }
 423                 }
 424                 if(debug) printf("VRender::run %d\n", __LINE__);
 425
 426 // Trigger audio to start
 427                 if(first_frame)
 428                 {
 429                         renderengine->first_frame_lock->unlock();
 430                         first_frame = 0;
 431                         renderengine->reset_sync_position();
 432                 }
 433                 if(debug) printf("VRender::run %d\n", __LINE__);
 434
 435                 session_frame += frame_step;
 436
 437 // advance position in project
 438                 current_input_length = frame_step;
 439
 440
 441 // Subtract frame_step in a loop to allow looped playback to drain
 442 // printf("VRender::run %d %d %d %d\n",
 443 // __LINE__,
 444 // done,
 445 // frame_step,
 446 // current_input_length);
 447                 while(frame_step && current_input_length)
 448                 {
 449 // trim current_input_length to range
 450                         get_boundaries(current_input_length);
 451 // advance 1 frame
 452                         advance_position(current_input_length);
 453                         frame_step -= current_input_length;
 454                         current_input_length = frame_step;
 455                         if(done) break;
 456 // printf("VRender::run %d %d %d %d\n",
 457 // __LINE__,
 458 // done,
 459 // frame_step,
 460 // current_input_length);
 461                 }
 462
 463                 if(debug) printf("VRender::run %d current_position=%jd done=%d\n",
 464                         __LINE__, current_position, done);
 465
 466 // Update tracking.
 467                 if(renderengine->command->realtime && renderengine->playback_engine &&
 468                         renderengine->command->command != CURRENT_FRAME &&
 469                         renderengine->command->command != LAST_FRAME)
 470                 {
 471                         renderengine->playback_engine->update_tracking(fromunits(current_position));
 472                 }
 473                 if(debug) printf("VRender::run %d\n", __LINE__);
 474
 475 // Calculate the framerate counter
 476                 framerate_counter++;
 477                 if(framerate_counter >= renderengine->get_edl()->session->frame_rate &&
 478                         renderengine->command->realtime)
 479                 {
 480                         renderengine->update_framerate((float)framerate_counter /
 481                                 ((float)framerate_timer.get_difference() / 1000));
 482                         framerate_counter = 0;
 483                         framerate_timer.update();
 484                 }
 485                 if(debug) printf("VRender::run %d done=%d\n", __LINE__, done);
 486                 if( !interrupt ) interrupt = renderengine->interrupted;
 487                 if( !interrupt ) interrupt = renderengine->video->interrupt;
 488                 if( !interrupt ) interrupt = vconsole->interrupt;
 489         }
 490
 491
 492 // In case we were interrupted before the first loop
 493         renderengine->first_frame_lock->unlock();
 494         stop_plugins();
 495         if(debug) printf("VRender::run %d done=%d\n", __LINE__, done);
 496 }
 497
 498 int VRender::start_playback()
 499 {
 500 // start reading input and sending to vrenderthread
 501 // use a thread only if there's a video device
 502         if(renderengine->command->realtime)
 503         {
 504                 start();
 505         }
 506         return 0;
 507 }
 508
 509 int64_t VRender::tounits(double position, int round)
 510 {
 511         if(round)
 512                 return Units::round(position * renderengine->get_edl()->session->frame_rate);
 513         else
 514                 return Units::to_int64(position * renderengine->get_edl()->session->frame_rate);
 515 }
 516
 517 double VRender::fromunits(int64_t position)
 518 {
 519         return (double)position / renderengine->get_edl()->session->frame_rate;
 520 }
 521