cinelerra-5.1/cinelerra/filethread.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 "condition.h"
  25 #include "file.h"
  26 #include "filethread.h"
  27 #include "mutex.h"
  28 #include "samples.h"
  29 #include "vframe.h"
  30 #include "videodevice.inc"
  31
  32 #include <string.h>
  33 #include <unistd.h>
  34
  35
  36 FileThreadFrame::FileThreadFrame()
  37 {
  38         position = 0;
  39         frame = 0;
  40 }
  41
  42 FileThreadFrame::~FileThreadFrame()
  43 {
  44         if(frame) delete frame;
  45 }
  46
  47
  48
  49 FileThread::FileThread(File *file, int do_audio, int do_video)
  50  : Thread(1, 0, 0)
  51 {
  52         reset();
  53         create_objects(file,
  54                 do_audio,
  55                 do_video);
  56 }
  57
  58 FileThread::~FileThread()
  59 {
  60         delete_objects();
  61
  62
  63 }
  64
  65 void FileThread::reset()
  66 {
  67         audio_buffer = 0;
  68         video_buffer = 0;
  69         output_size = 0;
  70         input_lock = 0;
  71         output_lock = 0;
  72         last_buffer = 0;
  73         is_writing = 0;
  74         is_reading = 0;
  75         file_lock = 0;
  76
  77         read_wait_lock = 0;
  78         user_wait_lock = 0;
  79         frame_lock = 0;
  80         total_frames = 0;
  81         done = 0;
  82         disable_read = 1;
  83         start_position = -1;
  84         layer = -1;
  85         read_position = 0;
  86         bzero(read_frames, sizeof(FileThreadFrame*) * MAX_READ_FRAMES);
  87 }
  88
  89
  90 void FileThread::create_objects(File *file,
  91                 int do_audio,
  92                 int do_video)
  93 {
  94         this->file = file;
  95         this->do_audio = do_audio;
  96         this->do_video = do_video;
  97         file_lock = new Mutex("FileThread::file_lock");
  98         read_wait_lock = new Condition(0, "FileThread::read_wait_lock");
  99         user_wait_lock = new Condition(0, "FileThread::user_wait_lock");
 100         frame_lock = new Mutex("FileThread::frame_lock");
 101         for(int i = 0; i < MAX_READ_FRAMES; i++)
 102                 read_frames[i] = new FileThreadFrame;
 103 }
 104
 105
 106 void FileThread::delete_objects()
 107 {
 108         for(int i = 0; i < MAX_READ_FRAMES; i++)
 109                 delete read_frames[i];
 110
 111         if(output_lock)
 112         {
 113                 for(int i = 0; i < ring_buffers; i++)
 114                 {
 115                         delete output_lock[i];
 116                 }
 117                 delete [] output_lock;
 118         }
 119
 120         if(input_lock)
 121         {
 122                 for(int i = 0; i < ring_buffers; i++)
 123                 {
 124                         delete input_lock[i];
 125                 }
 126                 delete [] input_lock;
 127         }
 128
 129
 130         if(last_buffer)
 131                 delete [] last_buffer;
 132
 133
 134         delete [] output_size;
 135
 136         delete file_lock;
 137
 138
 139         delete read_wait_lock;
 140         delete user_wait_lock;
 141         delete frame_lock;
 142
 143         reset();
 144 }
 145
 146 void FileThread::run()
 147 {
 148         int i, j;
 149         int debug = 0;
 150         if(debug) PRINT_TRACE
 151
 152         if(is_reading)
 153         {
 154                 if(debug) PRINT_TRACE
 155
 156                 while(!done && !disable_read)
 157                 {
 158                         if(debug) PRINT_TRACE
 159                         frame_lock->lock("FileThread::run 1");
 160                         int local_total_frames = total_frames;
 161                         frame_lock->unlock();
 162
 163                         if(local_total_frames >= MAX_READ_FRAMES)
 164                         {
 165                                 read_wait_lock->lock("FileThread::run");
 166                                 continue;
 167                         }
 168
 169                         if(debug) PRINT_TRACE
 170                         if(done || disable_read) break;
 171
 172 // Make local copes of the locked parameters
 173                         FileThreadFrame *local_frame = 0;
 174                         int64_t local_position = 0;
 175                         int local_layer;
 176                         if(debug) PRINT_TRACE
 177
 178                         frame_lock->lock("FileThread::run 2");
 179 // Get position of next frame to read
 180                         if(total_frames)
 181                                 local_position = read_frames[total_frames - 1]->position + 1;
 182                         else
 183                                 local_position = start_position;
 184 //printf("FileThread::run 1 %d %jd\n", total_frames, local_position);
 185
 186 // Get first available frame
 187                         local_total_frames = total_frames;
 188                         local_frame = read_frames[local_total_frames];
 189                         local_layer = layer;
 190                         local_frame->valid = 0;
 191                         frame_lock->unlock();
 192
 193 // Read frame
 194                         if(local_frame)
 195                         {
 196                                 if(debug) PRINT_TRACE
 197                                 file->set_layer(local_layer, 1);
 198                                 file->set_video_position(local_position, 1);
 199                                 int supported_colormodel =
 200                                         file->get_best_colormodel(PLAYBACK_ASYNCHRONOUS, local_layer);
 201                                 if(debug) PRINT_TRACE
 202
 203
 204 // Allocate frame
 205                                 if(local_frame->frame &&
 206                                         !local_frame->frame->params_match(file->asset->width,
 207                                                 file->asset->height,
 208                                                 supported_colormodel))
 209                                 {
 210                                         delete local_frame->frame;
 211                                         local_frame->frame = 0;
 212                                 }
 213
 214 //printf("FileThread::run %d\n", __LINE__);
 215                                 if(!local_frame->frame)
 216                                 {
 217                                         local_frame->frame =
 218                                                 new VFrame(file->asset->width, file->asset->height,
 219                                                         supported_colormodel, 0);
 220                                 }
 221
 222 // Read it
 223 // printf("FileThread::run %d w=%d h=%d supported_colormodel=%d\n",
 224 // __LINE__,
 225 // local_frame->frame->get_w(),
 226 // local_frame->frame->get_h(),
 227 // local_frame->frame->get_color_model());
 228                                 if(debug)
 229                                 {
 230                                         PRINT_TRACE
 231                                         printf("file=%p local_frame->frame=%p\n", file, local_frame->frame);
 232                                 }
 233                                 file->read_frame(local_frame->frame, 1);
 234                                 if(debug) PRINT_TRACE
 235                                 local_frame->position = local_position;
 236                                 local_frame->layer = local_layer;
 237
 238 // Put frame in last position but since the last position now may be
 239 // lower than it was when we got the frame, swap the current
 240 // last position with the previous last position.
 241                                 frame_lock->lock("FileThread::run 3");
 242                                 FileThreadFrame *old_frame = read_frames[total_frames];
 243                                 read_frames[local_total_frames] = old_frame;
 244                                 read_frames[total_frames++] = local_frame;
 245                                 local_frame->valid = 1;
 246                                 if(debug) PRINT_TRACE
 247                                 frame_lock->unlock();
 248
 249 // Que the user
 250                                 user_wait_lock->unlock();
 251                                 if(debug) PRINT_TRACE
 252                         }
 253                 }
 254         }
 255         else
 256         {
 257                 while(!done)
 258                 {
 259                         output_lock[local_buffer]->lock("FileThread::run 1");
 260                         return_value = 0;
 261
 262
 263 // Timer timer;
 264 // timer.update();
 265                         if(!last_buffer[local_buffer])
 266                         {
 267                                 if(output_size[local_buffer])
 268                                 {
 269                                         int result = 0;
 270                                         file_lock->lock("FileThread::run 2");
 271                                         if(do_audio)
 272                                         {
 273                                                 result = file->write_samples(
 274                                                         audio_buffer[local_buffer],
 275                                                         output_size[local_buffer]);
 276                                         }
 277                                         else
 278                                         if(do_video)
 279                                         {
 280                                                 if(compressed)
 281                                                 {
 282                                                         for(j = 0; j < file->asset->layers && !result; j++)
 283                                                                 for(i = 0; i < output_size[local_buffer] && !result; i++)
 284                                                                         result = file->write_compressed_frame(video_buffer[local_buffer][j][i]);
 285                                                 }
 286                                                 else
 287                                                 {
 288                                                         result = file->write_frames(video_buffer[local_buffer],
 289                                                                 output_size[local_buffer]);
 290                                                 }
 291                                         }
 292
 293                                         file_lock->unlock();
 294                                         return_value = result;
 295                                 }
 296                                 else
 297                                         return_value = 0;
 298
 299                                 output_size[local_buffer] = 0;
 300                         }
 301                         else
 302                                 done = 1;
 303
 304                         input_lock[local_buffer]->unlock();
 305                         local_buffer++;
 306                         if(local_buffer >= ring_buffers) local_buffer = 0;
 307                 }
 308         }
 309 }
 310
 311
 312
 313 int FileThread::stop_writing()
 314 {
 315         if(is_writing)
 316         {
 317                 int i, buffer, layer, frame;
 318
 319                 swap_buffer();
 320                 input_lock[current_buffer]->lock("FileThread::stop_writing 1");
 321
 322                 last_buffer[current_buffer] = 1;
 323
 324                 for(i = 0; i < ring_buffers; i++)
 325                         output_lock[i]->unlock();
 326
 327                 swap_buffer();
 328
 329 // wait for thread to finish
 330                 Thread::join();
 331
 332 // delete buffers
 333                 file_lock->lock("FileThread::stop_writing 2");
 334                 if(do_audio)
 335                 {
 336                         for(buffer = 0; buffer < ring_buffers; buffer++)
 337                         {
 338                                 for(i = 0; i < file->asset->channels; i++)
 339                                         delete audio_buffer[buffer][i];
 340                                 delete [] audio_buffer[buffer];
 341                         }
 342                         delete [] audio_buffer;
 343                         audio_buffer = 0;
 344                 }
 345
 346 // printf("FileThread::stop_writing %d %d %d %d\n",
 347 // do_video,
 348 // ring_buffers,
 349 // file->asset->layers,
 350 // buffer_size);
 351                 if(do_video)
 352                 {
 353                         for(buffer = 0; buffer < ring_buffers; buffer++)
 354                         {
 355                                 for(layer = 0; layer < file->asset->layers; layer++)
 356                                 {
 357                                         for(frame = 0; frame < buffer_size; frame++)
 358                                         {
 359                                                 delete video_buffer[buffer][layer][frame];
 360                                         }
 361                                         delete [] video_buffer[buffer][layer];
 362                                 }
 363                                 delete [] video_buffer[buffer];
 364                         }
 365                         delete [] video_buffer;
 366                         video_buffer = 0;
 367                 }
 368
 369                 file_lock->unlock();
 370         }
 371         return 0;
 372 }
 373
 374 int FileThread::start_writing(long buffer_size,
 375                 int color_model,
 376                 int ring_buffers,
 377                 int compressed)
 378 {
 379 // allocate buffers
 380         int buffer, layer, frame;
 381
 382         this->ring_buffers = ring_buffers;
 383         this->buffer_size = buffer_size;
 384         this->color_model = color_model;
 385         this->compressed = compressed;
 386         this->current_buffer = ring_buffers - 1;
 387         return_value = 0;
 388         local_buffer = 0;
 389
 390         file_lock->lock("FileThread::start_writing 1");
 391
 392
 393
 394
 395 // Buffer is swapped before first get
 396         last_buffer = new int[ring_buffers];
 397         output_size = new long[ring_buffers];
 398
 399
 400         output_lock = new Condition*[ring_buffers];
 401         input_lock = new Condition*[ring_buffers];
 402         for(int i = 0; i < ring_buffers; i++)
 403         {
 404                 output_lock[i] = new Condition(0, "FileThread::output_lock");
 405                 input_lock[i] = new Condition(1, "FileThread::input_lock");
 406                 last_buffer[i] = 0;
 407                 output_size[i] = 0;
 408         }
 409
 410
 411
 412         if(do_audio)
 413         {
 414                 audio_buffer = new Samples**[ring_buffers];
 415                 for(buffer = 0; buffer < ring_buffers; buffer++)
 416                 {
 417                         audio_buffer[buffer] = new Samples*[file->asset->channels];
 418
 419                         for(int channel = 0; channel < file->asset->channels; channel++)
 420                         {
 421                                 audio_buffer[buffer][channel] = new Samples(buffer_size);
 422                         }
 423                 }
 424         }
 425
 426         if(do_video)
 427         {
 428                 this->color_model = color_model;
 429                 //long bytes_per_frame = VFrame::calculate_data_size(file->asset->width,
 430                 //      file->asset->height, -1, color_model);
 431
 432                 video_buffer = new VFrame***[ring_buffers];
 433 // printf("FileThread::start_writing 1 %d %d %d %p\n",
 434 // ring_buffers,
 435 // file->asset->layers,
 436 // buffer_size,
 437 // video_buffer);
 438                 for(buffer = 0; buffer < ring_buffers; buffer++)
 439                 {
 440                         video_buffer[buffer] = new VFrame**[file->asset->layers];
 441                         for(layer = 0; layer < file->asset->layers; layer++)
 442                         {
 443                                 video_buffer[buffer][layer] = new VFrame*[buffer_size];
 444                                 for(frame = 0; frame < buffer_size; frame++)
 445                                 {
 446                                         if(compressed)
 447                                         {
 448                                                 video_buffer[buffer][layer][frame] = new VFrame;
 449 //printf("FileThread::start_writing %d %d\n", __LINE__);
 450                                         }
 451                                         else
 452                                         {
 453                                                 video_buffer[buffer][layer][frame] =
 454                                                         new VFrame( file->asset->width, file->asset->height,
 455                                                                 color_model, -1);
 456 // printf("FileThread::start_writing %d %d %d %d %p\n",
 457 // __LINE__,
 458 // buffer,
 459 // layer,
 460 // frame,
 461 // video_buffer[buffer][layer]);
 462                                         }
 463                                 }
 464                         }
 465                 }
 466         }
 467         file_lock->unlock();
 468
 469         for(int i = 0; i < ring_buffers; i++)
 470         {
 471                 last_buffer[i] = 0;
 472         }
 473
 474         is_writing = 1;
 475         done = 0;
 476         Thread::start();
 477         return 0;
 478 }
 479
 480 int FileThread::start_reading()
 481 {
 482         if(!is_reading)
 483         {
 484                 is_reading = 1;
 485                 disable_read = 1;
 486                 done = 0;
 487         }
 488         return 0;
 489 }
 490
 491 int FileThread::stop_reading()
 492 {
 493         if(is_reading && Thread::running())
 494         {
 495                 done = 1;
 496                 read_wait_lock->unlock();
 497                 Thread::join();
 498         }
 499         return 0;
 500 }
 501
 502 int FileThread::set_video_position(int64_t position)
 503 {
 504 // If the new position can't be added to the buffer without restarting,
 505 // disable reading.
 506         if((position < this->start_position ||
 507                 position >= this->start_position + MAX_READ_FRAMES) &&
 508                 !disable_read)
 509         {
 510                 disable_read = 1;
 511                 read_wait_lock->unlock();
 512                 Thread::join();
 513
 514                 total_frames = 0;
 515                 for(int i = 0; i < MAX_READ_FRAMES; i++)
 516                         read_frames[i]->valid = 0;
 517                 this->start_position = position;
 518         }
 519         else
 520 // If a sequential read, enable reading
 521         if(this->start_position + 1 == position && disable_read)
 522         {
 523                 this->start_position = position;
 524                 disable_read = 0;
 525                 Thread::start();
 526         }
 527         else
 528         if(disable_read)
 529         {
 530                 this->start_position = position;
 531         }
 532
 533         this->read_position = position;
 534         return 0;
 535 }
 536
 537 int FileThread::set_layer(int layer)
 538 {
 539         if(layer != this->layer)
 540         {
 541                 disable_read = 1;
 542                 read_wait_lock->unlock();
 543                 Thread::join();
 544                 total_frames = 0;
 545         }
 546         this->layer = layer;
 547         return 0;
 548 }
 549
 550 int FileThread::read_frame(VFrame *frame)
 551 {
 552         FileThreadFrame *local_frame = 0;
 553         int got_it = 0;
 554         int number = 0;
 555
 556 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 557
 558 // Search thread for frame
 559         while(!got_it && !disable_read)
 560         {
 561                 frame_lock->lock("FileThread::read_frame 1");
 562 // printf("FileThread::read_frame: 1 read_position=%jd ", read_position);
 563 // for(int i = 0; i < total_frames; i++)
 564 // printf("%jd ", read_frames[i]->position);
 565 // printf("\n");
 566                 for(int i = 0; i < total_frames; i++)
 567                 {
 568                         local_frame = read_frames[i];
 569                         if(local_frame->position == read_position &&
 570                                 local_frame->layer == layer &&
 571                                 local_frame->frame &&
 572                                 local_frame->frame->equal_stacks(frame) &&
 573                                 local_frame->valid)
 574                         {
 575                                 got_it = 1;
 576                                 number = i;
 577                                 break;
 578                         }
 579                 }
 580                 frame_lock->unlock();
 581
 582 // Not decoded yet but thread active
 583                 if(!got_it && !disable_read)
 584                 {
 585                         user_wait_lock->lock("FileThread::read_frame");
 586                 }
 587         }
 588
 589 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 590
 591         if(got_it)
 592         {
 593 // printf("FileThread::read_frame 1 color_model=%d disable_read=%d\n",
 594 // frame->get_color_model(),
 595 // disable_read);
 596 // Copy image
 597                 if(frame->get_color_model() != local_frame->frame->get_color_model() ||
 598                         frame->get_w() != local_frame->frame->get_w() ||
 599                         frame->get_h() != local_frame->frame->get_h())
 600                 {
 601 // printf("FileThread::read_frame %d this=%p out cmodel=%d h=%d in cmodel=%d h=%d\n",
 602 // __LINE__,
 603 // this,
 604 // frame->get_color_model(),
 605 // frame->get_w(),
 606 // local_frame->frame->get_color_model(),
 607 // local_frame->frame->get_w());
 608                         BC_CModels::transfer(frame->get_rows(),
 609                                 local_frame->frame->get_rows(),
 610                                 frame->get_y(),
 611                                 frame->get_u(),
 612                                 frame->get_v(),
 613                                 local_frame->frame->get_y(),
 614                                 local_frame->frame->get_u(),
 615                                 local_frame->frame->get_v(),
 616                                 0,
 617                                 0,
 618                                 local_frame->frame->get_w(),
 619                                 local_frame->frame->get_h(),
 620                                 0,
 621                                 0,
 622                                 frame->get_w(),
 623                                 frame->get_h(),
 624                                 local_frame->frame->get_color_model(),
 625                                 frame->get_color_model(),
 626                                 0,
 627                                 local_frame->frame->get_w(),
 628                                 frame->get_w());
 629 //for(int i = 0; i < 3000 * 1000 * 4; i++)
 630 //((float*)frame->get_rows()[0])[i] = 1;
 631 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 632                 }
 633                 else
 634                 {
 635 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 636                         frame->copy_from(local_frame->frame);
 637 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 638                 }
 639
 640 // Can't copy stacks because the stack is needed by the plugin requestor.
 641                 frame->copy_params(local_frame->frame);
 642 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 643
 644 // Recycle all frames before current one but not including current one.
 645 // This handles redrawing of a single frame but because FileThread has no
 646 // notion of a still frame, it has to call read_frame for those.
 647                 frame_lock->lock("FileThread::read_frame 1");
 648                 FileThreadFrame *new_table[MAX_READ_FRAMES];
 649                 int k = 0;
 650                 for(int j = number; j < total_frames; j++, k++)
 651                 {
 652                         new_table[k] = read_frames[j];
 653                 }
 654                 for(int j = 0; j < number; j++, k++)
 655                 {
 656                         new_table[k] = read_frames[j];
 657                 }
 658                 memcpy(read_frames, new_table, sizeof(FileThreadFrame*) * total_frames);
 659 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 660                 total_frames -= number;
 661
 662                 start_position = read_position;
 663                 read_position++;
 664                 frame_lock->unlock();
 665                 read_wait_lock->unlock();
 666                 return 0;
 667         }
 668         else
 669         {
 670 // printf("FileThread::read_frame 2 color_model=%d disable_read=%d\n",
 671 // frame->get_color_model(),
 672 // disable_read);
 673 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 674 // Use traditional read function
 675                 file->set_layer(layer, 1);
 676                 file->set_video_position(read_position, 1);
 677                 read_position++;
 678                 int result = file->read_frame(frame, 1);
 679 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 680                 return result;
 681         }
 682
 683
 684 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 685 }
 686
 687 int64_t FileThread::get_memory_usage()
 688 {
 689         frame_lock->lock("FileThread::get_memory_usage");
 690         int64_t result = 0;
 691         for(int i = 0; i < MAX_READ_FRAMES; i++)
 692                 if(read_frames[i] && read_frames[i]->frame)
 693                         result += read_frames[i]->frame->get_data_size();
 694         frame_lock->unlock();
 695         return result;
 696 }
 697
 698
 699 Samples** FileThread::get_audio_buffer()
 700 {
 701         swap_buffer();
 702
 703         input_lock[current_buffer]->lock("FileThread::get_audio_buffer");
 704         return audio_buffer[current_buffer];
 705 }
 706
 707 VFrame*** FileThread::get_video_buffer()
 708 {
 709         swap_buffer();
 710
 711         input_lock[current_buffer]->lock("FileThread::get_video_buffer");
 712         return video_buffer[current_buffer];
 713 }
 714
 715 VFrame*** FileThread::get_last_video_buffer()
 716 {
 717         return video_buffer[current_buffer];
 718 }
 719
 720 int FileThread::write_buffer(long size)
 721 {
 722         output_size[current_buffer] = size;
 723
 724 // unlock the output lock
 725         output_lock[current_buffer]->unlock();
 726
 727         return return_value;
 728 }
 729
 730 void FileThread::swap_buffer()
 731 {
 732         current_buffer++;
 733         if(current_buffer >= ring_buffers) current_buffer = 0;
 734 }
 735
 736