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->project_smp);
  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         renderengine->wait_done();
  78         delete overlayer;
  79         delete input_temp;
  80         delete transition_temp;
  81 }
  82
  83
  84 VirtualConsole* VRender::new_vconsole_object()
  85 {
  86         return new VirtualVConsole(renderengine, this);
  87 }
  88
  89 int VRender::get_total_tracks()
  90 {
  91         return renderengine->get_edl()->tracks->total_video_tracks();
  92 }
  93
  94 Module* VRender::new_module(Track *track)
  95 {
  96         return new VModule(renderengine, this, 0, track);
  97 }
  98
  99 int VRender::flash_output()
 100 {
 101         if(video_out)
 102                 return renderengine->video->write_buffer(video_out, renderengine->get_edl());
 103         else
 104                 return 0;
 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();
 137 //      int use_asynchronous =
 138 //              renderengine->command->realtime &&
 139 //              renderengine->get_edl()->session->video_every_frame &&
 140 //              renderengine->get_edl()->session->video_asynchronous;
 141         const int debug = 0;
 142
 143 // Determine the rendering strategy for this frame.
 144         use_vconsole = get_use_vconsole(&playable_edit, input_position, use_brender);
 145         if(debug) printf("VRender::process_buffer %d use_vconsole=%d\n", __LINE__, use_vconsole);
 146
 147 // Negotiate color model
 148         colormodel = get_colormodel(playable_edit, use_vconsole, use_brender);
 149         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 150
 151
 152 // Get output buffer from device
 153         if(renderengine->command->realtime && !renderengine->is_nested)
 154         {
 155                 renderengine->video->new_output_buffer(&video_out,
 156                         colormodel,
 157                         renderengine->get_edl());
 158         }
 159
 160         if(debug) printf("VRender::process_buffer %d video_out=%p\n", __LINE__, video_out);
 161
 162 // printf("VRender::process_buffer use_vconsole=%d colormodel=%d video_out=%p\n",
 163 // use_vconsole,
 164 // colormodel,
 165 // video_out);
 166 // Read directly from file to video_out
 167         if(!use_vconsole)
 168         {
 169
 170                 if(use_brender)
 171                 {
 172                         Asset *asset = renderengine->preferences->brender_asset;
 173                         File *file = renderengine->get_vcache()->check_out(asset,
 174                                 renderengine->get_edl());
 175
 176                         if(file)
 177                         {
 178                                 int64_t corrected_position = current_position;
 179                                 if(renderengine->command->get_direction() == PLAY_REVERSE)
 180                                         corrected_position--;
 181
 182 // Cache single frames only
 183 //                              if(use_asynchronous)
 184 //                                      file->start_video_decode_thread();
 185 //                              else
 186                                         file->stop_video_thread();
 187                                 if(use_cache) file->set_cache_frames(1);
 188                                 int64_t normalized_position = (int64_t)(corrected_position *
 189                                         asset->frame_rate /
 190                                         renderengine->get_edl()->session->frame_rate);
 191
 192                                 file->set_video_position(normalized_position,
 193                                         0);
 194                                 file->read_frame(video_out);
 195
 196
 197                                 if(use_cache) file->set_cache_frames(0);
 198                                 renderengine->get_vcache()->check_in(asset);
 199                         }
 200
 201                 }
 202                 else
 203                 if(playable_edit)
 204                 {
 205                         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 206                         result = ((VEdit*)playable_edit)->read_frame(video_out,
 207                                 current_position,
 208                                 renderengine->command->get_direction(),
 209                                 renderengine->get_vcache(),
 210                                 1,
 211                                 use_cache,
 212                                 0);
 213 //                              use_asynchronous);
 214                         if(debug) printf("VRender::process_buffer %d\n", __LINE__);
 215                 }
 216
 217
 218
 219                 video_out->set_opengl_state(VFrame::RAM);
 220         }
 221         else
 222 // Read into virtual console
 223         {
 224
 225 // process this buffer now in the virtual console
 226                 result = ((VirtualVConsole*)vconsole)->process_buffer(input_position,
 227                         use_opengl);
 228         }
 229
 230         return result;
 231 }
 232
 233 // Determine if virtual console is needed
 234 int VRender::get_use_vconsole(VEdit **playable_edit,
 235         int64_t position, int &use_brender)
 236 {
 237         *playable_edit = 0;
 238
 239 // Background rendering completed
 240         if((use_brender = renderengine->brender_available(position,
 241                 renderengine->command->get_direction())) != 0)
 242                 return 0;
 243
 244 // Descend into EDL nest
 245         return renderengine->get_edl()->get_use_vconsole(playable_edit,
 246                 position, renderengine->command->get_direction(),
 247                 vconsole->playable_tracks);
 248 }
 249
 250
 251 int VRender::get_colormodel(VEdit *playable_edit, int use_vconsole, int use_brender)
 252 {
 253         EDL *edl = renderengine->get_edl();
 254         int colormodel = renderengine->get_edl()->session->color_model;
 255         VideoOutConfig *vconfig = renderengine->config->vconfig;
 256 // check for playback: no plugins, not single frame
 257         if( !use_vconsole && !renderengine->command->single_frame() ) {
 258 // Get best colormodel supported by the file
 259 // colormodel yuv/rgb affects mpeg/jpeg color range,
 260 // dont mix them or loose color acccuracy
 261                 int64_t source_position = 0;
 262                 Asset *asset = use_brender ?
 263                         renderengine->preferences->brender_asset :
 264                         playable_edit->get_nested_asset(&source_position, current_position,
 265                                 renderengine->command->get_direction());
 266                 if( asset ) {
 267                         File *file = renderengine->get_vcache()->check_out(asset, edl);
 268                         if( file ) {
 269 // damn the color range, full speed ahead
 270                                 if( vconfig->driver == PLAYBACK_X11 && vconfig->use_direct_x11 &&
 271                                     file->colormodel_supported(BC_BGR8888) == BC_BGR8888 )
 272                                         colormodel = BC_BGR8888;
 273                                 else {
 274 // file favorite colormodel may mismatch rgb/yuv
 275                                         int vstream = playable_edit ? playable_edit->channel : -1;
 276                                         int best_colormodel = file->get_best_colormodel(vconfig->driver, vstream);
 277                                         if( BC_CModels::is_yuv(best_colormodel) == BC_CModels::is_yuv(colormodel) )
 278                                                 colormodel = best_colormodel;
 279                                 }
 280                                 renderengine->get_vcache()->check_in(asset);
 281                         }
 282                 }
 283         }
 284
 285         return colormodel;
 286 }
 287
 288
 289 void VRender::run()
 290 {
 291         int reconfigure;
 292         const int debug = 0;
 293
 294 // Want to know how many samples rendering each frame takes.
 295 // Then use this number to predict the next frame that should be rendered.
 296 // Be suspicious of frames that render late so have a countdown
 297 // before we start dropping.
 298         int64_t current_sample, start_sample, end_sample; // Absolute counts.
 299         int64_t skip_countdown = VRENDER_THRESHOLD;    // frames remaining until drop
 300         int64_t delay_countdown = 0;  // Frames remaining until delay
 301 // Number of frames before next reconfigure
 302         int64_t current_input_length;
 303 // Number of frames to skip.
 304         int64_t frame_step = 1;
 305         int use_opengl = (renderengine->video &&
 306                 renderengine->video->out_config->driver == PLAYBACK_X11_GL);
 307
 308         first_frame = 1;
 309
 310 // Number of frames since start of rendering
 311         session_frame = 0;
 312         framerate_counter = 0;
 313         framerate_timer.update();
 314
 315         start_lock->unlock();
 316         if(debug) printf("VRender::run %d\n", __LINE__);
 317
 318
 319         while(!done && !interrupt )
 320         {
 321 // Perform the most time consuming part of frame decompression now.
 322 // Want the condition before, since only 1 frame is rendered
 323 // and the number of frames skipped after this frame varies.
 324                 current_input_length = 1;
 325
 326                 reconfigure = vconsole->test_reconfigure(current_position,
 327                         current_input_length);
 328
 329
 330                 if(debug) printf("VRender::run %d\n", __LINE__);
 331                 if(reconfigure) restart_playback();
 332
 333                 if(debug) printf("VRender::run %d\n", __LINE__);
 334                 process_buffer(current_position, use_opengl);
 335
 336
 337                 if(debug) printf("VRender::run %d\n", __LINE__);
 338
 339                 if(renderengine->command->single_frame())
 340                 {
 341                         if(debug) printf("VRender::run %d\n", __LINE__);
 342                         flash_output();
 343                         frame_step = 1;
 344                         done = 1;
 345                 }
 346                 else
 347 // Perform synchronization
 348                 {
 349 // Determine the delay until the frame needs to be shown.
 350                         current_sample = (int64_t)(renderengine->sync_position() *
 351                                 renderengine->command->get_speed());
 352 // latest sample at which the frame can be shown.
 353                         end_sample = Units::tosamples(session_frame + 1,
 354                                 renderengine->get_edl()->session->sample_rate,
 355                                 renderengine->get_edl()->session->frame_rate);
 356 // earliest sample by which the frame needs to be shown.
 357                         start_sample = Units::tosamples(session_frame,
 358                                 renderengine->get_edl()->session->sample_rate,
 359                                 renderengine->get_edl()->session->frame_rate);
 360
 361                         if(first_frame || end_sample < current_sample)
 362                         {
 363 // Frame rendered late or this is the first frame.  Flash it now.
 364 //printf("VRender::run %d\n", __LINE__);
 365                                 flash_output();
 366
 367                                 if(renderengine->get_edl()->session->video_every_frame)
 368                                 {
 369 // User wants every frame.
 370                                         frame_step = 1;
 371                                 }
 372                                 else
 373                                 if(skip_countdown > 0)
 374                                 {
 375 // Maybe just a freak.
 376                                         frame_step = 1;
 377                                         skip_countdown--;
 378                                 }
 379                                 else
 380                                 {
 381 // Get the frames to skip.
 382                                         delay_countdown = VRENDER_THRESHOLD;
 383                                         frame_step = 1;
 384                                         frame_step += (int64_t)Units::toframes(current_sample,
 385                                                         renderengine->get_edl()->session->sample_rate,
 386                                                         renderengine->get_edl()->session->frame_rate);
 387                                         frame_step -= (int64_t)Units::toframes(end_sample,
 388                                                                 renderengine->get_edl()->session->sample_rate,
 389                                                                 renderengine->get_edl()->session->frame_rate);
 390                                 }
 391                         }
 392                         else
 393                         {
 394 // Frame rendered early or just in time.
 395                                 frame_step = 1;
 396
 397                                 if(delay_countdown > 0)
 398                                 {
 399 // Maybe just a freak
 400                                         delay_countdown--;
 401                                 }
 402                                 else
 403                                 {
 404                                         skip_countdown = VRENDER_THRESHOLD;
 405                                         if(start_sample > current_sample)
 406                                         {
 407                                                 int64_t delay_time = (int64_t)((float)(start_sample - current_sample) *
 408                                                         1000 / renderengine->get_edl()->session->sample_rate);
 409                                                 if( delay_time > 1000 ) delay_time = 1000;
 410                                                 timer.delay(delay_time);
 411                                         }
 412                                         else
 413                                         {
 414 // Came after the earliest sample so keep going
 415                                         }
 416                                 }
 417
 418 // Flash frame now.
 419 //printf("VRender::run %d %jd\n", __LINE__, current_input_length);
 420                                 flash_output();
 421                         }
 422                 }
 423                 if(debug) printf("VRender::run %d\n", __LINE__);
 424
 425 // Trigger audio to start
 426                 if(first_frame)
 427                 {
 428                         renderengine->first_frame_lock->unlock();
 429                         first_frame = 0;
 430                         renderengine->reset_sync_position();
 431                 }
 432                 if(debug) printf("VRender::run %d\n", __LINE__);
 433
 434                 session_frame += frame_step;
 435
 436 // advance position in project
 437                 current_input_length = frame_step;
 438
 439
 440 // Subtract frame_step in a loop to allow looped playback to drain
 441 // printf("VRender::run %d %d %d %d\n",
 442 // __LINE__,
 443 // done,
 444 // frame_step,
 445 // current_input_length);
 446                 while(frame_step && current_input_length)
 447                 {
 448 // trim current_input_length to range
 449                         get_boundaries(current_input_length);
 450 // advance 1 frame
 451                         advance_position(current_input_length);
 452                         frame_step -= current_input_length;
 453                         current_input_length = frame_step;
 454                         if(done) break;
 455 // printf("VRender::run %d %d %d %d\n",
 456 // __LINE__,
 457 // done,
 458 // frame_step,
 459 // current_input_length);
 460                 }
 461
 462                 if(debug) printf("VRender::run %d current_position=%jd done=%d\n",
 463                         __LINE__, current_position, done);
 464
 465 // Update tracking.
 466                 if(renderengine->command->realtime && renderengine->playback_engine &&
 467                         renderengine->command->command != CURRENT_FRAME &&
 468                         renderengine->command->command != LAST_FRAME)
 469                 {
 470                         renderengine->playback_engine->update_tracking(fromunits(current_position));
 471                 }
 472                 if(debug) printf("VRender::run %d\n", __LINE__);
 473
 474 // Calculate the framerate counter
 475                 framerate_counter++;
 476                 if(framerate_counter >= renderengine->get_edl()->session->frame_rate &&
 477                         renderengine->command->realtime)
 478                 {
 479                         renderengine->update_framerate((float)framerate_counter /
 480                                 ((float)framerate_timer.get_difference() / 1000));
 481                         framerate_counter = 0;
 482                         framerate_timer.update();
 483                 }
 484                 if(debug) printf("VRender::run %d done=%d\n", __LINE__, done);
 485                 if( !interrupt ) interrupt = renderengine->interrupted;
 486                 if( !interrupt ) interrupt = renderengine->video->interrupt;
 487                 if( !interrupt ) interrupt = vconsole->interrupt;
 488         }
 489
 490
 491 // In case we were interrupted before the first loop
 492         renderengine->first_frame_lock->unlock();
 493         stop_plugins();
 494         if(debug) printf("VRender::run %d done=%d\n", __LINE__, done);
 495 }
 496
 497 int VRender::start_playback()
 498 {
 499 // start reading input and sending to vrenderthread
 500 // use a thread only if there's a video device
 501         if(renderengine->command->realtime)
 502         {
 503                 start();
 504         }
 505         return 0;
 506 }
 507
 508 int64_t VRender::tounits(double position, int round)
 509 {
 510         if(round)
 511                 return Units::round(position * renderengine->get_edl()->session->frame_rate);
 512         else
 513                 return Units::to_int64(position * renderengine->get_edl()->session->frame_rate);
 514 }
 515
 516 double VRender::fromunits(int64_t position)
 517 {
 518         return (double)position / renderengine->get_edl()->session->frame_rate;
 519 }
 520