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                                                 int layers = 1, count = output_size[local_buffer];
 281                                                 VFrame ***frames = video_buffer[local_buffer];
 282                                                 if( compressed ) {
 283                                                         layers = file->asset->layers;
 284                                                         for( j=0; j<layers && !result; ++j )
 285                                                                 for( i=0; i<count && !result; ++i )
 286                                                                         result = file->write_compressed_frame(frames[j][i]);
 287                                                 }
 288                                                 else
 289                                                         result = file->write_frames(frames, count);
 290                                                 if( !result ) {
 291                                                         for( j=0; j<layers && !result; ++j )
 292                                                                 for( i=0; i<count && !result; ++i )
 293                                                                         file->write_frame_done(frames[j][i]->get_number());
 294                                                 }
 295                                         }
 296
 297                                         file_lock->unlock();
 298                                         return_value = result;
 299                                 }
 300                                 else
 301                                         return_value = 0;
 302
 303                                 output_size[local_buffer] = 0;
 304                         }
 305                         else
 306                                 done = 1;
 307
 308                         input_lock[local_buffer]->unlock();
 309                         local_buffer++;
 310                         if(local_buffer >= ring_buffers) local_buffer = 0;
 311                 }
 312         }
 313 }
 314
 315
 316
 317 int FileThread::stop_writing()
 318 {
 319         if(is_writing)
 320         {
 321                 int i, buffer, layer, frame;
 322
 323                 swap_buffer();
 324                 input_lock[current_buffer]->lock("FileThread::stop_writing 1");
 325
 326                 last_buffer[current_buffer] = 1;
 327
 328                 for(i = 0; i < ring_buffers; i++)
 329                         output_lock[i]->unlock();
 330
 331                 swap_buffer();
 332
 333 // wait for thread to finish
 334                 Thread::join();
 335
 336 // delete buffers
 337                 file_lock->lock("FileThread::stop_writing 2");
 338                 if(do_audio)
 339                 {
 340                         for(buffer = 0; buffer < ring_buffers; buffer++)
 341                         {
 342                                 for(i = 0; i < file->asset->channels; i++)
 343                                         delete audio_buffer[buffer][i];
 344                                 delete [] audio_buffer[buffer];
 345                         }
 346                         delete [] audio_buffer;
 347                         audio_buffer = 0;
 348                 }
 349
 350 // printf("FileThread::stop_writing %d %d %d %d\n",
 351 // do_video,
 352 // ring_buffers,
 353 // file->asset->layers,
 354 // buffer_size);
 355                 if(do_video)
 356                 {
 357                         for(buffer = 0; buffer < ring_buffers; buffer++)
 358                         {
 359                                 for(layer = 0; layer < file->asset->layers; layer++)
 360                                 {
 361                                         for(frame = 0; frame < buffer_size; frame++)
 362                                         {
 363                                                 delete video_buffer[buffer][layer][frame];
 364                                         }
 365                                         delete [] video_buffer[buffer][layer];
 366                                 }
 367                                 delete [] video_buffer[buffer];
 368                         }
 369                         delete [] video_buffer;
 370                         video_buffer = 0;
 371                 }
 372
 373                 file_lock->unlock();
 374         }
 375         return 0;
 376 }
 377
 378 int FileThread::start_writing(long buffer_size,
 379                 int color_model,
 380                 int ring_buffers,
 381                 int compressed)
 382 {
 383 // allocate buffers
 384         int buffer, layer, frame;
 385
 386         this->ring_buffers = ring_buffers;
 387         this->buffer_size = buffer_size;
 388         this->color_model = color_model;
 389         this->compressed = compressed;
 390         this->current_buffer = ring_buffers - 1;
 391         return_value = 0;
 392         local_buffer = 0;
 393
 394         file_lock->lock("FileThread::start_writing 1");
 395
 396
 397
 398
 399 // Buffer is swapped before first get
 400         last_buffer = new int[ring_buffers];
 401         output_size = new long[ring_buffers];
 402
 403
 404         output_lock = new Condition*[ring_buffers];
 405         input_lock = new Condition*[ring_buffers];
 406         for(int i = 0; i < ring_buffers; i++)
 407         {
 408                 output_lock[i] = new Condition(0, "FileThread::output_lock");
 409                 input_lock[i] = new Condition(1, "FileThread::input_lock");
 410                 last_buffer[i] = 0;
 411                 output_size[i] = 0;
 412         }
 413
 414
 415
 416         if(do_audio)
 417         {
 418                 audio_buffer = new Samples**[ring_buffers];
 419                 for(buffer = 0; buffer < ring_buffers; buffer++)
 420                 {
 421                         audio_buffer[buffer] = new Samples*[file->asset->channels];
 422
 423                         for(int channel = 0; channel < file->asset->channels; channel++)
 424                         {
 425                                 audio_buffer[buffer][channel] = new Samples(buffer_size);
 426                         }
 427                 }
 428         }
 429
 430         if(do_video)
 431         {
 432                 this->color_model = color_model;
 433                 //long bytes_per_frame = VFrame::calculate_data_size(file->asset->width,
 434                 //      file->asset->height, -1, color_model);
 435
 436                 video_buffer = new VFrame***[ring_buffers];
 437 // printf("FileThread::start_writing 1 %d %d %d %p\n",
 438 // ring_buffers,
 439 // file->asset->layers,
 440 // buffer_size,
 441 // video_buffer);
 442                 for(buffer = 0; buffer < ring_buffers; buffer++)
 443                 {
 444                         video_buffer[buffer] = new VFrame**[file->asset->layers];
 445                         for(layer = 0; layer < file->asset->layers; layer++)
 446                         {
 447                                 video_buffer[buffer][layer] = new VFrame*[buffer_size];
 448                                 for(frame = 0; frame < buffer_size; frame++)
 449                                 {
 450                                         if(compressed)
 451                                         {
 452                                                 video_buffer[buffer][layer][frame] = new VFrame;
 453 //printf("FileThread::start_writing %d %d\n", __LINE__);
 454                                         }
 455                                         else
 456                                         {
 457                                                 video_buffer[buffer][layer][frame] =
 458                                                         new VFrame( file->asset->width, file->asset->height,
 459                                                                 color_model, -1);
 460 // printf("FileThread::start_writing %d %d %d %d %p\n",
 461 // __LINE__,
 462 // buffer,
 463 // layer,
 464 // frame,
 465 // video_buffer[buffer][layer]);
 466                                         }
 467                                 }
 468                         }
 469                 }
 470         }
 471         file_lock->unlock();
 472
 473         for(int i = 0; i < ring_buffers; i++)
 474         {
 475                 last_buffer[i] = 0;
 476         }
 477
 478         is_writing = 1;
 479         done = 0;
 480         Thread::start();
 481         return 0;
 482 }
 483
 484 int FileThread::start_reading()
 485 {
 486         if(!is_reading)
 487         {
 488                 is_reading = 1;
 489                 disable_read = 1;
 490                 done = 0;
 491         }
 492         return 0;
 493 }
 494
 495 int FileThread::stop_reading()
 496 {
 497         if(is_reading && Thread::running())
 498         {
 499                 done = 1;
 500                 read_wait_lock->unlock();
 501                 Thread::join();
 502         }
 503         return 0;
 504 }
 505
 506 int FileThread::set_video_position(int64_t position)
 507 {
 508 // If the new position can't be added to the buffer without restarting,
 509 // disable reading.
 510         if((position < this->start_position ||
 511                 position >= this->start_position + MAX_READ_FRAMES) &&
 512                 !disable_read)
 513         {
 514                 disable_read = 1;
 515                 read_wait_lock->unlock();
 516                 Thread::join();
 517
 518                 total_frames = 0;
 519                 for(int i = 0; i < MAX_READ_FRAMES; i++)
 520                         read_frames[i]->valid = 0;
 521                 this->start_position = position;
 522         }
 523         else
 524 // If a sequential read, enable reading
 525         if(this->start_position + 1 == position && disable_read)
 526         {
 527                 this->start_position = position;
 528                 disable_read = 0;
 529                 Thread::start();
 530         }
 531         else
 532         if(disable_read)
 533         {
 534                 this->start_position = position;
 535         }
 536
 537         this->read_position = position;
 538         return 0;
 539 }
 540
 541 int FileThread::set_layer(int layer)
 542 {
 543         if(layer != this->layer)
 544         {
 545                 disable_read = 1;
 546                 read_wait_lock->unlock();
 547                 Thread::join();
 548                 total_frames = 0;
 549         }
 550         this->layer = layer;
 551         return 0;
 552 }
 553
 554 int FileThread::read_frame(VFrame *frame)
 555 {
 556         FileThreadFrame *local_frame = 0;
 557         int got_it = 0;
 558         int number = 0;
 559
 560 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 561
 562 // Search thread for frame
 563         while(!got_it && !disable_read)
 564         {
 565                 frame_lock->lock("FileThread::read_frame 1");
 566 // printf("FileThread::read_frame: 1 read_position=%jd ", read_position);
 567 // for(int i = 0; i < total_frames; i++)
 568 // printf("%jd ", read_frames[i]->position);
 569 // printf("\n");
 570                 for(int i = 0; i < total_frames; i++)
 571                 {
 572                         local_frame = read_frames[i];
 573                         if(local_frame->position == read_position &&
 574                                 local_frame->layer == layer &&
 575                                 local_frame->frame &&
 576                                 local_frame->frame->equal_stacks(frame) &&
 577                                 local_frame->valid)
 578                         {
 579                                 got_it = 1;
 580                                 number = i;
 581                                 break;
 582                         }
 583                 }
 584                 frame_lock->unlock();
 585
 586 // Not decoded yet but thread active
 587                 if(!got_it && !disable_read)
 588                 {
 589                         user_wait_lock->lock("FileThread::read_frame");
 590                 }
 591         }
 592
 593 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 594
 595         if(got_it)
 596         {
 597 // printf("FileThread::read_frame 1 color_model=%d disable_read=%d\n",
 598 // frame->get_color_model(),
 599 // disable_read);
 600 // Copy image
 601                 if(frame->get_color_model() != local_frame->frame->get_color_model() ||
 602                         frame->get_w() != local_frame->frame->get_w() ||
 603                         frame->get_h() != local_frame->frame->get_h())
 604                 {
 605 // printf("FileThread::read_frame %d this=%p out cmodel=%d h=%d in cmodel=%d h=%d\n",
 606 // __LINE__,
 607 // this,
 608 // frame->get_color_model(),
 609 // frame->get_w(),
 610 // local_frame->frame->get_color_model(),
 611 // local_frame->frame->get_w());
 612                         BC_CModels::transfer(frame->get_rows(),
 613                                 local_frame->frame->get_rows(),
 614                                 frame->get_y(),
 615                                 frame->get_u(),
 616                                 frame->get_v(),
 617                                 local_frame->frame->get_y(),
 618                                 local_frame->frame->get_u(),
 619                                 local_frame->frame->get_v(),
 620                                 0,
 621                                 0,
 622                                 local_frame->frame->get_w(),
 623                                 local_frame->frame->get_h(),
 624                                 0,
 625                                 0,
 626                                 frame->get_w(),
 627                                 frame->get_h(),
 628                                 local_frame->frame->get_color_model(),
 629                                 frame->get_color_model(),
 630                                 0,
 631                                 local_frame->frame->get_w(),
 632                                 frame->get_w());
 633 //for(int i = 0; i < 3000 * 1000 * 4; i++)
 634 //((float*)frame->get_rows()[0])[i] = 1;
 635 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 636                 }
 637                 else
 638                 {
 639 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 640                         frame->copy_from(local_frame->frame);
 641 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 642                 }
 643
 644 // Can't copy stacks because the stack is needed by the plugin requestor.
 645                 frame->copy_params(local_frame->frame);
 646 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 647
 648 // Recycle all frames before current one but not including current one.
 649 // This handles redrawing of a single frame but because FileThread has no
 650 // notion of a still frame, it has to call read_frame for those.
 651                 frame_lock->lock("FileThread::read_frame 1");
 652                 FileThreadFrame *new_table[MAX_READ_FRAMES];
 653                 int k = 0;
 654                 for(int j = number; j < total_frames; j++, k++)
 655                 {
 656                         new_table[k] = read_frames[j];
 657                 }
 658                 for(int j = 0; j < number; j++, k++)
 659                 {
 660                         new_table[k] = read_frames[j];
 661                 }
 662                 memcpy(read_frames, new_table, sizeof(FileThreadFrame*) * total_frames);
 663 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 664                 total_frames -= number;
 665
 666                 start_position = read_position;
 667                 read_position++;
 668                 frame_lock->unlock();
 669                 read_wait_lock->unlock();
 670                 return 0;
 671         }
 672         else
 673         {
 674 // printf("FileThread::read_frame 2 color_model=%d disable_read=%d\n",
 675 // frame->get_color_model(),
 676 // disable_read);
 677 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 678 // Use traditional read function
 679                 file->set_layer(layer, 1);
 680                 file->set_video_position(read_position, 1);
 681                 read_position++;
 682                 int result = file->read_frame(frame, 1);
 683 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 684                 return result;
 685         }
 686
 687
 688 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 689 }
 690
 691 int64_t FileThread::get_memory_usage()
 692 {
 693         frame_lock->lock("FileThread::get_memory_usage");
 694         int64_t result = 0;
 695         for(int i = 0; i < MAX_READ_FRAMES; i++)
 696                 if(read_frames[i] && read_frames[i]->frame)
 697                         result += read_frames[i]->frame->get_data_size();
 698         frame_lock->unlock();
 699         return result;
 700 }
 701
 702
 703 Samples** FileThread::get_audio_buffer()
 704 {
 705         swap_buffer();
 706
 707         input_lock[current_buffer]->lock("FileThread::get_audio_buffer");
 708         return audio_buffer[current_buffer];
 709 }
 710
 711 VFrame*** FileThread::get_video_buffer()
 712 {
 713         swap_buffer();
 714
 715         input_lock[current_buffer]->lock("FileThread::get_video_buffer");
 716         return video_buffer[current_buffer];
 717 }
 718
 719 VFrame*** FileThread::get_last_video_buffer()
 720 {
 721         return video_buffer[current_buffer];
 722 }
 723
 724 int FileThread::write_buffer(long size)
 725 {
 726         output_size[current_buffer] = size;
 727
 728 // unlock the output lock
 729         output_lock[current_buffer]->unlock();
 730
 731         return return_value;
 732 }
 733
 734 void FileThread::swap_buffer()
 735 {
 736         current_buffer++;
 737         if(current_buffer >= ring_buffers) current_buffer = 0;
 738 }
 739
 740