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);
 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 = new VFrame(0,
 218                                                 -1,
 219                                                 file->asset->width,
 220                                                 file->asset->height,
 221                                                 supported_colormodel,
 222                                                 -1);
 223                                 }
 224
 225 // Read it
 226 // printf("FileThread::run %d w=%d h=%d supported_colormodel=%d\n",
 227 // __LINE__,
 228 // local_frame->frame->get_w(),
 229 // local_frame->frame->get_h(),
 230 // local_frame->frame->get_color_model());
 231                                 if(debug)
 232                                 {
 233                                         PRINT_TRACE
 234                                         printf("file=%p local_frame->frame=%p\n", file, local_frame->frame);
 235                                 }
 236                                 file->read_frame(local_frame->frame, 1);
 237                                 if(debug) PRINT_TRACE
 238                                 local_frame->position = local_position;
 239                                 local_frame->layer = local_layer;
 240
 241 // Put frame in last position but since the last position now may be
 242 // lower than it was when we got the frame, swap the current
 243 // last position with the previous last position.
 244                                 frame_lock->lock("FileThread::run 3");
 245                                 FileThreadFrame *old_frame = read_frames[total_frames];
 246                                 read_frames[local_total_frames] = old_frame;
 247                                 read_frames[total_frames++] = local_frame;
 248                                 local_frame->valid = 1;
 249                                 if(debug) PRINT_TRACE
 250                                 frame_lock->unlock();
 251
 252 // Que the user
 253                                 user_wait_lock->unlock();
 254                                 if(debug) PRINT_TRACE
 255                         }
 256                 }
 257         }
 258         else
 259         {
 260                 while(!done)
 261                 {
 262                         output_lock[local_buffer]->lock("FileThread::run 1");
 263                         return_value = 0;
 264
 265
 266 // Timer timer;
 267 // timer.update();
 268                         if(!last_buffer[local_buffer])
 269                         {
 270                                 if(output_size[local_buffer])
 271                                 {
 272                                         int result = 0;
 273                                         file_lock->lock("FileThread::run 2");
 274                                         if(do_audio)
 275                                         {
 276                                                 result = file->write_samples(
 277                                                         audio_buffer[local_buffer],
 278                                                         output_size[local_buffer]);
 279                                         }
 280                                         else
 281                                         if(do_video)
 282                                         {
 283                                                 if(compressed)
 284                                                 {
 285                                                         for(j = 0; j < file->asset->layers && !result; j++)
 286                                                                 for(i = 0; i < output_size[local_buffer] && !result; i++)
 287                                                                         result = file->write_compressed_frame(video_buffer[local_buffer][j][i]);
 288                                                 }
 289                                                 else
 290                                                 {
 291                                                         result = file->write_frames(video_buffer[local_buffer],
 292                                                                 output_size[local_buffer]);
 293                                                 }
 294                                         }
 295
 296                                         file_lock->unlock();
 297                                         return_value = result;
 298                                 }
 299                                 else
 300                                         return_value = 0;
 301
 302                                 output_size[local_buffer] = 0;
 303                         }
 304                         else
 305                                 done = 1;
 306
 307                         input_lock[local_buffer]->unlock();
 308                         local_buffer++;
 309                         if(local_buffer >= ring_buffers) local_buffer = 0;
 310                 }
 311         }
 312 }
 313
 314
 315
 316 int FileThread::stop_writing()
 317 {
 318         if(is_writing)
 319         {
 320                 int i, buffer, layer, frame;
 321
 322                 swap_buffer();
 323                 input_lock[current_buffer]->lock("FileThread::stop_writing 1");
 324
 325                 last_buffer[current_buffer] = 1;
 326
 327                 for(i = 0; i < ring_buffers; i++)
 328                         output_lock[i]->unlock();
 329
 330                 swap_buffer();
 331
 332 // wait for thread to finish
 333                 Thread::join();
 334
 335 // delete buffers
 336                 file_lock->lock("FileThread::stop_writing 2");
 337                 if(do_audio)
 338                 {
 339                         for(buffer = 0; buffer < ring_buffers; buffer++)
 340                         {
 341                                 for(i = 0; i < file->asset->channels; i++)
 342                                         delete audio_buffer[buffer][i];
 343                                 delete [] audio_buffer[buffer];
 344                         }
 345                         delete [] audio_buffer;
 346                         audio_buffer = 0;
 347                 }
 348
 349 // printf("FileThread::stop_writing %d %d %d %d\n",
 350 // do_video,
 351 // ring_buffers,
 352 // file->asset->layers,
 353 // buffer_size);
 354                 if(do_video)
 355                 {
 356                         for(buffer = 0; buffer < ring_buffers; buffer++)
 357                         {
 358                                 for(layer = 0; layer < file->asset->layers; layer++)
 359                                 {
 360                                         for(frame = 0; frame < buffer_size; frame++)
 361                                         {
 362                                                 delete video_buffer[buffer][layer][frame];
 363                                         }
 364                                         delete [] video_buffer[buffer][layer];
 365                                 }
 366                                 delete [] video_buffer[buffer];
 367                         }
 368                         delete [] video_buffer;
 369                         video_buffer = 0;
 370                 }
 371
 372                 file_lock->unlock();
 373         }
 374         return 0;
 375 }
 376
 377 int FileThread::start_writing(long buffer_size,
 378                 int color_model,
 379                 int ring_buffers,
 380                 int compressed)
 381 {
 382 // allocate buffers
 383         int buffer, layer, frame;
 384
 385         this->ring_buffers = ring_buffers;
 386         this->buffer_size = buffer_size;
 387         this->color_model = color_model;
 388         this->compressed = compressed;
 389         this->current_buffer = ring_buffers - 1;
 390         return_value = 0;
 391         local_buffer = 0;
 392
 393         file_lock->lock("FileThread::start_writing 1");
 394
 395
 396
 397
 398 // Buffer is swapped before first get
 399         last_buffer = new int[ring_buffers];
 400         output_size = new long[ring_buffers];
 401
 402
 403         output_lock = new Condition*[ring_buffers];
 404         input_lock = new Condition*[ring_buffers];
 405         for(int i = 0; i < ring_buffers; i++)
 406         {
 407                 output_lock[i] = new Condition(0, "FileThread::output_lock");
 408                 input_lock[i] = new Condition(1, "FileThread::input_lock");
 409                 last_buffer[i] = 0;
 410                 output_size[i] = 0;
 411         }
 412
 413
 414
 415         if(do_audio)
 416         {
 417                 audio_buffer = new Samples**[ring_buffers];
 418                 for(buffer = 0; buffer < ring_buffers; buffer++)
 419                 {
 420                         audio_buffer[buffer] = new Samples*[file->asset->channels];
 421
 422                         for(int channel = 0; channel < file->asset->channels; channel++)
 423                         {
 424                                 audio_buffer[buffer][channel] = new Samples(buffer_size);
 425                         }
 426                 }
 427         }
 428
 429         if(do_video)
 430         {
 431                 this->color_model = color_model;
 432                 //long bytes_per_frame = VFrame::calculate_data_size(file->asset->width,
 433                 //      file->asset->height, -1, color_model);
 434
 435                 video_buffer = new VFrame***[ring_buffers];
 436 // printf("FileThread::start_writing 1 %d %d %d %p\n",
 437 // ring_buffers,
 438 // file->asset->layers,
 439 // buffer_size,
 440 // video_buffer);
 441                 for(buffer = 0; buffer < ring_buffers; buffer++)
 442                 {
 443                         video_buffer[buffer] = new VFrame**[file->asset->layers];
 444                         for(layer = 0; layer < file->asset->layers; layer++)
 445                         {
 446                                 video_buffer[buffer][layer] = new VFrame*[buffer_size];
 447                                 for(frame = 0; frame < buffer_size; frame++)
 448                                 {
 449                                         if(compressed)
 450                                         {
 451                                                 video_buffer[buffer][layer][frame] = new VFrame;
 452 //printf("FileThread::start_writing %d %d\n", __LINE__);
 453                                         }
 454                                         else
 455                                         {
 456                                                 video_buffer[buffer][layer][frame] =
 457                                                         new VFrame(0,
 458                                                                 -1,
 459                                                                 file->asset->width,
 460                                                                 file->asset->height,
 461                                                                 color_model,
 462                                                                 -1);
 463 // printf("FileThread::start_writing %d %d %d %d %p\n",
 464 // __LINE__,
 465 // buffer,
 466 // layer,
 467 // frame,
 468 // video_buffer[buffer][layer]);
 469                                         }
 470                                 }
 471                         }
 472                 }
 473         }
 474         file_lock->unlock();
 475
 476         for(int i = 0; i < ring_buffers; i++)
 477         {
 478                 last_buffer[i] = 0;
 479         }
 480
 481         is_writing = 1;
 482         done = 0;
 483         Thread::start();
 484         return 0;
 485 }
 486
 487 int FileThread::start_reading()
 488 {
 489         if(!is_reading)
 490         {
 491                 is_reading = 1;
 492                 disable_read = 1;
 493                 done = 0;
 494         }
 495         return 0;
 496 }
 497
 498 int FileThread::stop_reading()
 499 {
 500         if(is_reading && Thread::running())
 501         {
 502                 done = 1;
 503                 read_wait_lock->unlock();
 504         }
 505         Thread::join();
 506         return 0;
 507 }
 508
 509 int FileThread::set_video_position(int64_t position)
 510 {
 511 // If the new position can't be added to the buffer without restarting,
 512 // disable reading.
 513         if((position < this->start_position ||
 514                 position >= this->start_position + MAX_READ_FRAMES) &&
 515                 !disable_read)
 516         {
 517                 disable_read = 1;
 518                 read_wait_lock->unlock();
 519                 Thread::join();
 520
 521                 total_frames = 0;
 522                 for(int i = 0; i < MAX_READ_FRAMES; i++)
 523                         read_frames[i]->valid = 0;
 524                 this->start_position = position;
 525         }
 526         else
 527 // If a sequential read, enable reading
 528         if(this->start_position + 1 == position && disable_read)
 529         {
 530                 this->start_position = position;
 531                 disable_read = 0;
 532                 Thread::start();
 533         }
 534         else
 535         if(disable_read)
 536         {
 537                 this->start_position = position;
 538         }
 539
 540         this->read_position = position;
 541         return 0;
 542 }
 543
 544 int FileThread::set_layer(int layer)
 545 {
 546         if(layer != this->layer)
 547         {
 548                 disable_read = 1;
 549                 read_wait_lock->unlock();
 550                 Thread::join();
 551                 total_frames = 0;
 552         }
 553         this->layer = layer;
 554         return 0;
 555 }
 556
 557 int FileThread::read_frame(VFrame *frame)
 558 {
 559         FileThreadFrame *local_frame = 0;
 560         int got_it = 0;
 561         int number = 0;
 562
 563 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 564
 565 // Search thread for frame
 566         while(!got_it && !disable_read)
 567         {
 568                 frame_lock->lock("FileThread::read_frame 1");
 569 // printf("FileThread::read_frame: 1 read_position=%jd ", read_position);
 570 // for(int i = 0; i < total_frames; i++)
 571 // printf("%jd ", read_frames[i]->position);
 572 // printf("\n");
 573                 for(int i = 0; i < total_frames; i++)
 574                 {
 575                         local_frame = read_frames[i];
 576                         if(local_frame->position == read_position &&
 577                                 local_frame->layer == layer &&
 578                                 local_frame->frame &&
 579                                 local_frame->frame->equal_stacks(frame) &&
 580                                 local_frame->valid)
 581                         {
 582                                 got_it = 1;
 583                                 number = i;
 584                                 break;
 585                         }
 586                 }
 587                 frame_lock->unlock();
 588
 589 // Not decoded yet but thread active
 590                 if(!got_it && !disable_read)
 591                 {
 592                         user_wait_lock->lock("FileThread::read_frame");
 593                 }
 594         }
 595
 596 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 597
 598         if(got_it)
 599         {
 600 // printf("FileThread::read_frame 1 color_model=%d disable_read=%d\n",
 601 // frame->get_color_model(),
 602 // disable_read);
 603 // Copy image
 604                 if(frame->get_color_model() != local_frame->frame->get_color_model() ||
 605                         frame->get_w() != local_frame->frame->get_w() ||
 606                         frame->get_h() != local_frame->frame->get_h())
 607                 {
 608 // printf("FileThread::read_frame %d this=%p out cmodel=%d h=%d in cmodel=%d h=%d\n",
 609 // __LINE__,
 610 // this,
 611 // frame->get_color_model(),
 612 // frame->get_w(),
 613 // local_frame->frame->get_color_model(),
 614 // local_frame->frame->get_w());
 615                         BC_CModels::transfer(frame->get_rows(),
 616                                 local_frame->frame->get_rows(),
 617                                 frame->get_y(),
 618                                 frame->get_u(),
 619                                 frame->get_v(),
 620                                 local_frame->frame->get_y(),
 621                                 local_frame->frame->get_u(),
 622                                 local_frame->frame->get_v(),
 623                                 0,
 624                                 0,
 625                                 local_frame->frame->get_w(),
 626                                 local_frame->frame->get_h(),
 627                                 0,
 628                                 0,
 629                                 frame->get_w(),
 630                                 frame->get_h(),
 631                                 local_frame->frame->get_color_model(),
 632                                 frame->get_color_model(),
 633                                 0,
 634                                 local_frame->frame->get_w(),
 635                                 frame->get_w());
 636 //for(int i = 0; i < 3000 * 1000 * 4; i++)
 637 //((float*)frame->get_rows()[0])[i] = 1;
 638 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 639                 }
 640                 else
 641                 {
 642 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 643                         frame->copy_from(local_frame->frame);
 644 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 645                 }
 646
 647 // Can't copy stacks because the stack is needed by the plugin requestor.
 648                 frame->copy_params(local_frame->frame);
 649 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 650
 651 // Recycle all frames before current one but not including current one.
 652 // This handles redrawing of a single frame but because FileThread has no
 653 // notion of a still frame, it has to call read_frame for those.
 654                 frame_lock->lock("FileThread::read_frame 1");
 655                 FileThreadFrame *new_table[MAX_READ_FRAMES];
 656                 int k = 0;
 657                 for(int j = number; j < total_frames; j++, k++)
 658                 {
 659                         new_table[k] = read_frames[j];
 660                 }
 661                 for(int j = 0; j < number; j++, k++)
 662                 {
 663                         new_table[k] = read_frames[j];
 664                 }
 665                 memcpy(read_frames, new_table, sizeof(FileThreadFrame*) * total_frames);
 666 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 667                 total_frames -= number;
 668
 669                 start_position = read_position;
 670                 read_position++;
 671                 frame_lock->unlock();
 672                 read_wait_lock->unlock();
 673                 return 0;
 674         }
 675         else
 676         {
 677 // printf("FileThread::read_frame 2 color_model=%d disable_read=%d\n",
 678 // frame->get_color_model(),
 679 // disable_read);
 680 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 681 // Use traditional read function
 682                 file->set_layer(layer, 1);
 683                 file->set_video_position(read_position, 1);
 684                 read_position++;
 685                 int result = file->read_frame(frame, 1);
 686 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 687                 return result;
 688         }
 689
 690
 691 //printf("FileThread::read_frame %d this=%p\n", __LINE__, this);
 692 }
 693
 694 int64_t FileThread::get_memory_usage()
 695 {
 696         frame_lock->lock("FileThread::get_memory_usage");
 697         int64_t result = 0;
 698         for(int i = 0; i < MAX_READ_FRAMES; i++)
 699                 if(read_frames[i] && read_frames[i]->frame)
 700                         result += read_frames[i]->frame->get_data_size();
 701         frame_lock->unlock();
 702         return result;
 703 }
 704
 705
 706 Samples** FileThread::get_audio_buffer()
 707 {
 708         swap_buffer();
 709
 710         input_lock[current_buffer]->lock("FileThread::get_audio_buffer");
 711         return audio_buffer[current_buffer];
 712 }
 713
 714 VFrame*** FileThread::get_video_buffer()
 715 {
 716         swap_buffer();
 717
 718         input_lock[current_buffer]->lock("FileThread::get_video_buffer");
 719         return video_buffer[current_buffer];
 720 }
 721
 722 VFrame*** FileThread::get_last_video_buffer()
 723 {
 724         return video_buffer[current_buffer];
 725 }
 726
 727 int FileThread::write_buffer(long size)
 728 {
 729         output_size[current_buffer] = size;
 730
 731 // unlock the output lock
 732         output_lock[current_buffer]->unlock();
 733
 734         return return_value;
 735 }
 736
 737 void FileThread::swap_buffer()
 738 {
 739         current_buffer++;
 740         if(current_buffer >= ring_buffers) current_buffer = 0;
 741 }
 742
 743