annotate data/model/WaveFileModel.cpp @ 1001:51bf067de517

Add fill-ends option to CSV writer (and test it)
author Chris Cannam
date Wed, 15 Oct 2014 10:18:13 +0100
parents 9869ea3a93b7
children 36f79bc5c3d7
rev   line source
Chris@147 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@147 2
Chris@147 3 /*
Chris@147 4 Sonic Visualiser
Chris@147 5 An audio file viewer and annotation editor.
Chris@147 6 Centre for Digital Music, Queen Mary, University of London.
Chris@202 7 This file copyright 2006 Chris Cannam and QMUL.
Chris@147 8
Chris@147 9 This program is free software; you can redistribute it and/or
Chris@147 10 modify it under the terms of the GNU General Public License as
Chris@147 11 published by the Free Software Foundation; either version 2 of the
Chris@147 12 License, or (at your option) any later version. See the file
Chris@147 13 COPYING included with this distribution for more information.
Chris@147 14 */
Chris@147 15
Chris@150 16 #include "WaveFileModel.h"
Chris@147 17
Chris@147 18 #include "fileio/AudioFileReader.h"
Chris@147 19 #include "fileio/AudioFileReaderFactory.h"
Chris@147 20
Chris@150 21 #include "system/System.h"
Chris@147 22
Chris@921 23 #include "base/Preferences.h"
Chris@921 24
Chris@147 25 #include <QFileInfo>
Chris@314 26 #include <QTextStream>
Chris@147 27
Chris@147 28 #include <iostream>
Chris@147 29 #include <unistd.h>
Chris@572 30 #include <cmath>
Chris@147 31 #include <sndfile.h>
Chris@147 32
Chris@147 33 #include <cassert>
Chris@147 34
Chris@236 35 //#define DEBUG_WAVE_FILE_MODEL 1
Chris@236 36
Chris@179 37 PowerOfSqrtTwoZoomConstraint
Chris@179 38 WaveFileModel::m_zoomConstraint;
Chris@179 39
Chris@929 40 WaveFileModel::WaveFileModel(FileSource source, int targetRate) :
Chris@316 41 m_source(source),
Chris@316 42 m_path(source.getLocation()),
Chris@971 43 m_reader(0),
Chris@175 44 m_myReader(true),
Chris@300 45 m_startFrame(0),
Chris@147 46 m_fillThread(0),
Chris@147 47 m_updateTimer(0),
Chris@147 48 m_lastFillExtent(0),
Chris@752 49 m_exiting(false),
Chris@752 50 m_lastDirectReadStart(0),
Chris@752 51 m_lastDirectReadCount(0)
Chris@147 52 {
Chris@316 53 m_source.waitForData();
Chris@316 54 if (m_source.isOK()) {
Chris@921 55 bool normalise = Preferences::getInstance()->getNormaliseAudio();
Chris@327 56 m_reader = AudioFileReaderFactory::createThreadingReader
Chris@921 57 (m_source, targetRate, normalise);
Chris@316 58 if (m_reader) {
Chris@690 59 SVDEBUG << "WaveFileModel::WaveFileModel: reader rate: "
Chris@687 60 << m_reader->getSampleRate() << endl;
Chris@316 61 }
Chris@316 62 }
Chris@292 63 if (m_reader) setObjectName(m_reader->getTitle());
Chris@316 64 if (objectName() == "") setObjectName(QFileInfo(m_path).fileName());
Chris@175 65 if (isOK()) fillCache();
Chris@175 66 }
Chris@175 67
Chris@317 68 WaveFileModel::WaveFileModel(FileSource source, AudioFileReader *reader) :
Chris@316 69 m_source(source),
Chris@316 70 m_path(source.getLocation()),
Chris@971 71 m_reader(0),
Chris@175 72 m_myReader(false),
Chris@300 73 m_startFrame(0),
Chris@175 74 m_fillThread(0),
Chris@175 75 m_updateTimer(0),
Chris@175 76 m_lastFillExtent(0),
Chris@175 77 m_exiting(false)
Chris@175 78 {
Chris@175 79 m_reader = reader;
Chris@292 80 if (m_reader) setObjectName(m_reader->getTitle());
Chris@316 81 if (objectName() == "") setObjectName(QFileInfo(m_path).fileName());
Chris@187 82 fillCache();
Chris@147 83 }
Chris@147 84
Chris@147 85 WaveFileModel::~WaveFileModel()
Chris@147 86 {
Chris@147 87 m_exiting = true;
Chris@147 88 if (m_fillThread) m_fillThread->wait();
Chris@175 89 if (m_myReader) delete m_reader;
Chris@147 90 m_reader = 0;
Chris@147 91 }
Chris@147 92
Chris@147 93 bool
Chris@147 94 WaveFileModel::isOK() const
Chris@147 95 {
Chris@147 96 return m_reader && m_reader->isOK();
Chris@147 97 }
Chris@147 98
Chris@147 99 bool
Chris@147 100 WaveFileModel::isReady(int *completion) const
Chris@147 101 {
Chris@147 102 bool ready = (isOK() && (m_fillThread == 0));
Chris@147 103 double c = double(m_lastFillExtent) / double(getEndFrame() - getStartFrame());
Chris@266 104 static int prevCompletion = 0;
Chris@265 105 if (completion) {
Chris@265 106 *completion = int(c * 100.0 + 0.01);
Chris@265 107 if (m_reader) {
Chris@265 108 int decodeCompletion = m_reader->getDecodeCompletion();
Chris@266 109 if (decodeCompletion < 90) *completion = decodeCompletion;
Chris@266 110 else *completion = std::min(*completion, decodeCompletion);
Chris@265 111 }
Chris@266 112 if (*completion != 0 &&
Chris@266 113 *completion != 100 &&
Chris@266 114 prevCompletion != 0 &&
Chris@266 115 prevCompletion > *completion) {
Chris@266 116 // just to avoid completion going backwards
Chris@266 117 *completion = prevCompletion;
Chris@266 118 }
Chris@266 119 prevCompletion = *completion;
Chris@265 120 }
Chris@236 121 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@690 122 SVDEBUG << "WaveFileModel::isReady(): ready = " << ready << ", completion = " << (completion ? *completion : -1) << endl;
Chris@236 123 #endif
Chris@147 124 return ready;
Chris@147 125 }
Chris@147 126
Chris@147 127 Model *
Chris@147 128 WaveFileModel::clone() const
Chris@147 129 {
Chris@316 130 WaveFileModel *model = new WaveFileModel(m_source);
Chris@147 131 return model;
Chris@147 132 }
Chris@147 133
Chris@929 134 int
Chris@147 135 WaveFileModel::getFrameCount() const
Chris@147 136 {
Chris@147 137 if (!m_reader) return 0;
Chris@147 138 return m_reader->getFrameCount();
Chris@147 139 }
Chris@147 140
Chris@929 141 int
Chris@147 142 WaveFileModel::getChannelCount() const
Chris@147 143 {
Chris@147 144 if (!m_reader) return 0;
Chris@147 145 return m_reader->getChannelCount();
Chris@147 146 }
Chris@147 147
Chris@929 148 int
Chris@147 149 WaveFileModel::getSampleRate() const
Chris@147 150 {
Chris@147 151 if (!m_reader) return 0;
Chris@147 152 return m_reader->getSampleRate();
Chris@147 153 }
Chris@147 154
Chris@929 155 int
Chris@297 156 WaveFileModel::getNativeRate() const
Chris@297 157 {
Chris@297 158 if (!m_reader) return 0;
Chris@929 159 int rate = m_reader->getNativeRate();
Chris@297 160 if (rate == 0) rate = getSampleRate();
Chris@297 161 return rate;
Chris@297 162 }
Chris@297 163
Chris@333 164 QString
Chris@333 165 WaveFileModel::getTitle() const
Chris@333 166 {
Chris@333 167 QString title;
Chris@333 168 if (m_reader) title = m_reader->getTitle();
Chris@333 169 if (title == "") title = objectName();
Chris@333 170 return title;
Chris@333 171 }
Chris@333 172
Chris@333 173 QString
Chris@333 174 WaveFileModel::getMaker() const
Chris@333 175 {
Chris@333 176 if (m_reader) return m_reader->getMaker();
Chris@333 177 return "";
Chris@333 178 }
Chris@345 179
Chris@345 180 QString
Chris@345 181 WaveFileModel::getLocation() const
Chris@345 182 {
Chris@345 183 if (m_reader) return m_reader->getLocation();
Chris@345 184 return "";
Chris@345 185 }
Chris@333 186
Chris@929 187 int
Chris@929 188 WaveFileModel::getData(int channel, int start, int count,
Chris@300 189 float *buffer) const
Chris@147 190 {
Chris@147 191 // Always read these directly from the file.
Chris@147 192 // This is used for e.g. audio playback.
Chris@147 193 // Could be much more efficient (although compiler optimisation will help)
Chris@147 194
Chris@429 195 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@843 196 cout << "WaveFileModel::getData[" << this << "]: " << channel << ", " << start << ", " << count << ", " << buffer << endl;
Chris@429 197 #endif
Chris@429 198
Chris@363 199 if (start >= m_startFrame) {
Chris@300 200 start -= m_startFrame;
Chris@300 201 } else {
Chris@948 202 for (int i = 0; i < count; ++i) {
Chris@948 203 buffer[i] = 0.f;
Chris@948 204 }
Chris@300 205 if (count <= m_startFrame - start) {
Chris@300 206 return 0;
Chris@300 207 } else {
Chris@300 208 count -= (m_startFrame - start);
Chris@300 209 start = 0;
Chris@300 210 }
Chris@147 211 }
Chris@147 212
Chris@300 213 if (!m_reader || !m_reader->isOK() || count == 0) {
Chris@929 214 for (int i = 0; i < count; ++i) buffer[i] = 0.f;
Chris@300 215 return 0;
Chris@300 216 }
Chris@147 217
Chris@236 218 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@690 219 // SVDEBUG << "WaveFileModel::getValues(" << channel << ", "
Chris@687 220 // << start << ", " << end << "): calling reader" << endl;
Chris@236 221 #endif
Chris@175 222
Chris@363 223 int channels = getChannelCount();
Chris@363 224
Chris@363 225 SampleBlock frames(count * channels);
Chris@300 226 m_reader->getInterleavedFrames(start, count, frames);
Chris@147 227
Chris@929 228 int i = 0;
Chris@147 229
Chris@363 230 int ch0 = channel, ch1 = channel;
Chris@147 231 if (channel == -1) {
Chris@147 232 ch0 = 0;
Chris@147 233 ch1 = channels - 1;
Chris@147 234 }
Chris@147 235
Chris@300 236 while (i < count) {
Chris@147 237
Chris@147 238 buffer[i] = 0.0;
Chris@147 239
Chris@147 240 for (int ch = ch0; ch <= ch1; ++ch) {
Chris@147 241
Chris@929 242 int index = i * channels + ch;
Chris@929 243 if (index >= (int)frames.size()) break;
Chris@147 244
Chris@147 245 float sample = frames[index];
Chris@147 246 buffer[i] += sample;
Chris@147 247 }
Chris@147 248
Chris@147 249 ++i;
Chris@147 250 }
Chris@147 251
Chris@147 252 return i;
Chris@147 253 }
Chris@147 254
Chris@929 255 int
Chris@929 256 WaveFileModel::getData(int channel, int start, int count,
Chris@300 257 double *buffer) const
Chris@147 258 {
Chris@429 259 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@843 260 cout << "WaveFileModel::getData(double)[" << this << "]: " << channel << ", " << start << ", " << count << ", " << buffer << endl;
Chris@429 261 #endif
Chris@429 262
Chris@300 263 if (start > m_startFrame) {
Chris@300 264 start -= m_startFrame;
Chris@300 265 } else {
Chris@929 266 for (int i = 0; i < count; ++i) buffer[i] = 0.0;
Chris@300 267 if (count <= m_startFrame - start) {
Chris@300 268 return 0;
Chris@300 269 } else {
Chris@300 270 count -= (m_startFrame - start);
Chris@300 271 start = 0;
Chris@300 272 }
Chris@147 273 }
Chris@147 274
Chris@300 275 if (!m_reader || !m_reader->isOK() || count == 0) {
Chris@929 276 for (int i = 0; i < count; ++i) buffer[i] = 0.0;
Chris@300 277 return 0;
Chris@300 278 }
Chris@147 279
Chris@363 280 int channels = getChannelCount();
Chris@363 281
Chris@363 282 SampleBlock frames(count * channels);
Chris@300 283 m_reader->getInterleavedFrames(start, count, frames);
Chris@147 284
Chris@929 285 int i = 0;
Chris@147 286
Chris@363 287 int ch0 = channel, ch1 = channel;
Chris@147 288 if (channel == -1) {
Chris@147 289 ch0 = 0;
Chris@147 290 ch1 = channels - 1;
Chris@147 291 }
Chris@147 292
Chris@300 293 while (i < count) {
Chris@147 294
Chris@147 295 buffer[i] = 0.0;
Chris@147 296
Chris@147 297 for (int ch = ch0; ch <= ch1; ++ch) {
Chris@147 298
Chris@929 299 int index = i * channels + ch;
Chris@929 300 if (index >= (int)frames.size()) break;
Chris@147 301
Chris@147 302 float sample = frames[index];
Chris@147 303 buffer[i] += sample;
Chris@147 304 }
Chris@147 305
Chris@147 306 ++i;
Chris@147 307 }
Chris@147 308
Chris@147 309 return i;
Chris@147 310 }
Chris@147 311
Chris@929 312 int
Chris@929 313 WaveFileModel::getData(int fromchannel, int tochannel,
Chris@929 314 int start, int count,
Chris@363 315 float **buffer) const
Chris@363 316 {
Chris@429 317 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@843 318 cout << "WaveFileModel::getData[" << this << "]: " << fromchannel << "," << tochannel << ", " << start << ", " << count << ", " << buffer << endl;
Chris@429 319 #endif
Chris@429 320
Chris@929 321 int channels = getChannelCount();
Chris@363 322
Chris@363 323 if (fromchannel > tochannel) {
Chris@843 324 cerr << "ERROR: WaveFileModel::getData: fromchannel ("
Chris@363 325 << fromchannel << ") > tochannel (" << tochannel << ")"
Chris@843 326 << endl;
Chris@363 327 return 0;
Chris@363 328 }
Chris@363 329
Chris@363 330 if (tochannel >= channels) {
Chris@843 331 cerr << "ERROR: WaveFileModel::getData: tochannel ("
Chris@363 332 << tochannel << ") >= channel count (" << channels << ")"
Chris@843 333 << endl;
Chris@363 334 return 0;
Chris@363 335 }
Chris@363 336
Chris@363 337 if (fromchannel == tochannel) {
Chris@363 338 return getData(fromchannel, start, count, buffer[0]);
Chris@363 339 }
Chris@363 340
Chris@929 341 int reqchannels = (tochannel - fromchannel) + 1;
Chris@363 342
Chris@363 343 // Always read these directly from the file.
Chris@363 344 // This is used for e.g. audio playback.
Chris@363 345 // Could be much more efficient (although compiler optimisation will help)
Chris@363 346
Chris@363 347 if (start >= m_startFrame) {
Chris@363 348 start -= m_startFrame;
Chris@363 349 } else {
Chris@929 350 for (int c = 0; c < reqchannels; ++c) {
Chris@929 351 for (int i = 0; i < count; ++i) buffer[c][i] = 0.f;
Chris@363 352 }
Chris@363 353 if (count <= m_startFrame - start) {
Chris@363 354 return 0;
Chris@363 355 } else {
Chris@363 356 count -= (m_startFrame - start);
Chris@363 357 start = 0;
Chris@363 358 }
Chris@363 359 }
Chris@363 360
Chris@363 361 if (!m_reader || !m_reader->isOK() || count == 0) {
Chris@929 362 for (int c = 0; c < reqchannels; ++c) {
Chris@929 363 for (int i = 0; i < count; ++i) buffer[c][i] = 0.f;
Chris@363 364 }
Chris@363 365 return 0;
Chris@363 366 }
Chris@363 367
Chris@363 368 SampleBlock frames(count * channels);
Chris@363 369 m_reader->getInterleavedFrames(start, count, frames);
Chris@363 370
Chris@929 371 int i = 0;
Chris@363 372
Chris@929 373 int index = 0, available = frames.size();
Chris@363 374
Chris@363 375 while (i < count) {
Chris@363 376
Chris@363 377 if (index >= available) break;
Chris@363 378
Chris@929 379 int destc = 0;
Chris@363 380
Chris@929 381 for (int c = 0; c < channels; ++c) {
Chris@363 382
Chris@363 383 if (c >= fromchannel && c <= tochannel) {
Chris@363 384 buffer[destc][i] = frames[index];
Chris@363 385 ++destc;
Chris@363 386 }
Chris@363 387
Chris@363 388 ++index;
Chris@363 389 }
Chris@363 390
Chris@363 391 ++i;
Chris@363 392 }
Chris@363 393
Chris@363 394 return i;
Chris@363 395 }
Chris@363 396
Chris@929 397 int
Chris@929 398 WaveFileModel::getSummaryBlockSize(int desired) const
Chris@377 399 {
Chris@377 400 int cacheType = 0;
Chris@377 401 int power = m_zoomConstraint.getMinCachePower();
Chris@929 402 int roundedBlockSize = m_zoomConstraint.getNearestBlockSize
Chris@377 403 (desired, cacheType, power, ZoomConstraint::RoundDown);
Chris@377 404 if (cacheType != 0 && cacheType != 1) {
Chris@377 405 // We will be reading directly from file, so can satisfy any
Chris@377 406 // blocksize requirement
Chris@377 407 return desired;
Chris@377 408 } else {
Chris@377 409 return roundedBlockSize;
Chris@377 410 }
Chris@377 411 }
Chris@377 412
Chris@225 413 void
Chris@929 414 WaveFileModel::getSummaries(int channel, int start, int count,
Chris@929 415 RangeBlock &ranges, int &blockSize) const
Chris@147 416 {
Chris@225 417 ranges.clear();
Chris@225 418 if (!isOK()) return;
Chris@377 419 ranges.reserve((count / blockSize) + 1);
Chris@147 420
Chris@300 421 if (start > m_startFrame) start -= m_startFrame;
Chris@300 422 else if (count <= m_startFrame - start) return;
Chris@300 423 else {
Chris@300 424 count -= (m_startFrame - start);
Chris@300 425 start = 0;
Chris@147 426 }
Chris@147 427
Chris@147 428 int cacheType = 0;
Chris@179 429 int power = m_zoomConstraint.getMinCachePower();
Chris@929 430 int roundedBlockSize = m_zoomConstraint.getNearestBlockSize
Chris@377 431 (blockSize, cacheType, power, ZoomConstraint::RoundDown);
Chris@147 432
Chris@929 433 int channels = getChannelCount();
Chris@147 434
Chris@147 435 if (cacheType != 0 && cacheType != 1) {
Chris@147 436
Chris@147 437 // We need to read directly from the file. We haven't got
Chris@147 438 // this cached. Hope the requested area is small. This is
Chris@147 439 // not optimal -- we'll end up reading the same frames twice
Chris@147 440 // for stereo files, in two separate calls to this method.
Chris@147 441 // We could fairly trivially handle this for most cases that
Chris@147 442 // matter by putting a single cache in getInterleavedFrames
Chris@147 443 // for short queries.
Chris@147 444
Chris@377 445 m_directReadMutex.lock();
Chris@377 446
Chris@377 447 if (m_lastDirectReadStart != start ||
Chris@377 448 m_lastDirectReadCount != count ||
Chris@377 449 m_directRead.empty()) {
Chris@377 450
Chris@377 451 m_reader->getInterleavedFrames(start, count, m_directRead);
Chris@377 452 m_lastDirectReadStart = start;
Chris@377 453 m_lastDirectReadCount = count;
Chris@377 454 }
Chris@377 455
Chris@147 456 float max = 0.0, min = 0.0, total = 0.0;
Chris@929 457 int i = 0, got = 0;
Chris@147 458
Chris@300 459 while (i < count) {
Chris@147 460
Chris@929 461 int index = i * channels + channel;
Chris@929 462 if (index >= (int)m_directRead.size()) break;
Chris@147 463
Chris@377 464 float sample = m_directRead[index];
Chris@300 465 if (sample > max || got == 0) max = sample;
Chris@300 466 if (sample < min || got == 0) min = sample;
Chris@147 467 total += fabsf(sample);
Chris@838 468
Chris@147 469 ++i;
Chris@300 470 ++got;
Chris@147 471
Chris@300 472 if (got == blockSize) {
Chris@300 473 ranges.push_back(Range(min, max, total / got));
Chris@147 474 min = max = total = 0.0f;
Chris@300 475 got = 0;
Chris@147 476 }
Chris@147 477 }
Chris@147 478
Chris@377 479 m_directReadMutex.unlock();
Chris@377 480
Chris@300 481 if (got > 0) {
Chris@300 482 ranges.push_back(Range(min, max, total / got));
Chris@147 483 }
Chris@147 484
Chris@225 485 return;
Chris@147 486
Chris@147 487 } else {
Chris@147 488
Chris@147 489 QMutexLocker locker(&m_mutex);
Chris@147 490
Chris@147 491 const RangeBlock &cache = m_cache[cacheType];
Chris@147 492
Chris@377 493 blockSize = roundedBlockSize;
Chris@377 494
Chris@929 495 int cacheBlock, div;
Chris@147 496
Chris@147 497 if (cacheType == 0) {
Chris@179 498 cacheBlock = (1 << m_zoomConstraint.getMinCachePower());
Chris@147 499 div = (1 << power) / cacheBlock;
Chris@147 500 } else {
Chris@608 501 cacheBlock = ((unsigned int)((1 << m_zoomConstraint.getMinCachePower()) * sqrt(2.) + 0.01));
Chris@608 502 div = ((unsigned int)((1 << power) * sqrt(2.) + 0.01)) / cacheBlock;
Chris@147 503 }
Chris@147 504
Chris@929 505 int startIndex = start / cacheBlock;
Chris@929 506 int endIndex = (start + count) / cacheBlock;
Chris@147 507
Chris@147 508 float max = 0.0, min = 0.0, total = 0.0;
Chris@929 509 int i = 0, got = 0;
Chris@147 510
Chris@236 511 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@300 512 cerr << "blockSize is " << blockSize << ", cacheBlock " << cacheBlock << ", start " << start << ", count " << count << " (frame count " << getFrameCount() << "), power is " << power << ", div is " << div << ", startIndex " << startIndex << ", endIndex " << endIndex << endl;
Chris@236 513 #endif
Chris@147 514
Chris@300 515 for (i = 0; i <= endIndex - startIndex; ) {
Chris@147 516
Chris@929 517 int index = (i + startIndex) * channels + channel;
Chris@929 518 if (index >= (int)cache.size()) break;
Chris@147 519
Chris@147 520 const Range &range = cache[index];
Chris@410 521 if (range.max() > max || got == 0) max = range.max();
Chris@410 522 if (range.min() < min || got == 0) min = range.min();
Chris@410 523 total += range.absmean();
Chris@147 524
Chris@147 525 ++i;
Chris@300 526 ++got;
Chris@147 527
Chris@300 528 if (got == div) {
Chris@300 529 ranges.push_back(Range(min, max, total / got));
Chris@147 530 min = max = total = 0.0f;
Chris@300 531 got = 0;
Chris@147 532 }
Chris@147 533 }
Chris@147 534
Chris@300 535 if (got > 0) {
Chris@300 536 ranges.push_back(Range(min, max, total / got));
Chris@147 537 }
Chris@147 538 }
Chris@147 539
Chris@236 540 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@690 541 SVDEBUG << "returning " << ranges.size() << " ranges" << endl;
Chris@236 542 #endif
Chris@225 543 return;
Chris@147 544 }
Chris@147 545
Chris@147 546 WaveFileModel::Range
Chris@929 547 WaveFileModel::getSummary(int channel, int start, int count) const
Chris@147 548 {
Chris@147 549 Range range;
Chris@147 550 if (!isOK()) return range;
Chris@147 551
Chris@300 552 if (start > m_startFrame) start -= m_startFrame;
Chris@300 553 else if (count <= m_startFrame - start) return range;
Chris@300 554 else {
Chris@300 555 count -= (m_startFrame - start);
Chris@300 556 start = 0;
Chris@147 557 }
Chris@147 558
Chris@929 559 int blockSize;
Chris@300 560 for (blockSize = 1; blockSize <= count; blockSize *= 2);
Chris@300 561 if (blockSize > 1) blockSize /= 2;
Chris@147 562
Chris@147 563 bool first = false;
Chris@147 564
Chris@929 565 int blockStart = (start / blockSize) * blockSize;
Chris@929 566 int blockEnd = ((start + count) / blockSize) * blockSize;
Chris@147 567
Chris@147 568 if (blockStart < start) blockStart += blockSize;
Chris@147 569
Chris@147 570 if (blockEnd > blockStart) {
Chris@225 571 RangeBlock ranges;
Chris@300 572 getSummaries(channel, blockStart, blockEnd - blockStart, ranges, blockSize);
Chris@929 573 for (int i = 0; i < (int)ranges.size(); ++i) {
Chris@410 574 if (first || ranges[i].min() < range.min()) range.setMin(ranges[i].min());
Chris@410 575 if (first || ranges[i].max() > range.max()) range.setMax(ranges[i].max());
Chris@410 576 if (first || ranges[i].absmean() < range.absmean()) range.setAbsmean(ranges[i].absmean());
Chris@147 577 first = false;
Chris@147 578 }
Chris@147 579 }
Chris@147 580
Chris@147 581 if (blockStart > start) {
Chris@300 582 Range startRange = getSummary(channel, start, blockStart - start);
Chris@410 583 range.setMin(std::min(range.min(), startRange.min()));
Chris@410 584 range.setMax(std::max(range.max(), startRange.max()));
Chris@410 585 range.setAbsmean(std::min(range.absmean(), startRange.absmean()));
Chris@147 586 }
Chris@147 587
Chris@300 588 if (blockEnd < start + count) {
Chris@300 589 Range endRange = getSummary(channel, blockEnd, start + count - blockEnd);
Chris@410 590 range.setMin(std::min(range.min(), endRange.min()));
Chris@410 591 range.setMax(std::max(range.max(), endRange.max()));
Chris@410 592 range.setAbsmean(std::min(range.absmean(), endRange.absmean()));
Chris@147 593 }
Chris@147 594
Chris@147 595 return range;
Chris@147 596 }
Chris@147 597
Chris@147 598 void
Chris@147 599 WaveFileModel::fillCache()
Chris@147 600 {
Chris@147 601 m_mutex.lock();
Chris@188 602
Chris@147 603 m_updateTimer = new QTimer(this);
Chris@147 604 connect(m_updateTimer, SIGNAL(timeout()), this, SLOT(fillTimerTimedOut()));
Chris@147 605 m_updateTimer->start(100);
Chris@188 606
Chris@147 607 m_fillThread = new RangeCacheFillThread(*this);
Chris@147 608 connect(m_fillThread, SIGNAL(finished()), this, SLOT(cacheFilled()));
Chris@188 609
Chris@147 610 m_mutex.unlock();
Chris@147 611 m_fillThread->start();
Chris@188 612
Chris@236 613 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@690 614 SVDEBUG << "WaveFileModel::fillCache: started fill thread" << endl;
Chris@236 615 #endif
Chris@147 616 }
Chris@147 617
Chris@147 618 void
Chris@147 619 WaveFileModel::fillTimerTimedOut()
Chris@147 620 {
Chris@147 621 if (m_fillThread) {
Chris@929 622 int fillExtent = m_fillThread->getFillExtent();
Chris@236 623 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@690 624 SVDEBUG << "WaveFileModel::fillTimerTimedOut: extent = " << fillExtent << endl;
Chris@236 625 #endif
Chris@147 626 if (fillExtent > m_lastFillExtent) {
Chris@931 627 emit modelChangedWithin(m_lastFillExtent, fillExtent);
Chris@147 628 m_lastFillExtent = fillExtent;
Chris@147 629 }
Chris@147 630 } else {
Chris@236 631 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@690 632 SVDEBUG << "WaveFileModel::fillTimerTimedOut: no thread" << endl;
Chris@236 633 #endif
Chris@147 634 emit modelChanged();
Chris@147 635 }
Chris@147 636 }
Chris@147 637
Chris@147 638 void
Chris@147 639 WaveFileModel::cacheFilled()
Chris@147 640 {
Chris@147 641 m_mutex.lock();
Chris@147 642 delete m_fillThread;
Chris@147 643 m_fillThread = 0;
Chris@147 644 delete m_updateTimer;
Chris@147 645 m_updateTimer = 0;
Chris@147 646 m_mutex.unlock();
Chris@267 647 if (getEndFrame() > m_lastFillExtent) {
Chris@931 648 emit modelChangedWithin(m_lastFillExtent, getEndFrame());
Chris@267 649 }
Chris@147 650 emit modelChanged();
Chris@411 651 emit ready();
Chris@236 652 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@690 653 SVDEBUG << "WaveFileModel::cacheFilled" << endl;
Chris@236 654 #endif
Chris@175 655 }
Chris@175 656
Chris@175 657 void
Chris@147 658 WaveFileModel::RangeCacheFillThread::run()
Chris@147 659 {
Chris@929 660 int cacheBlockSize[2];
Chris@179 661 cacheBlockSize[0] = (1 << m_model.m_zoomConstraint.getMinCachePower());
Chris@179 662 cacheBlockSize[1] = ((unsigned int)((1 << m_model.m_zoomConstraint.getMinCachePower()) *
Chris@608 663 sqrt(2.) + 0.01));
Chris@147 664
Chris@929 665 int frame = 0;
Chris@411 666 int readBlockSize = 16384;
Chris@290 667 SampleBlock block;
Chris@147 668
Chris@147 669 if (!m_model.isOK()) return;
Chris@147 670
Chris@929 671 int channels = m_model.getChannelCount();
Chris@187 672 bool updating = m_model.m_reader->isUpdating();
Chris@187 673
Chris@187 674 if (updating) {
Chris@187 675 while (channels == 0 && !m_model.m_exiting) {
Chris@690 676 // SVDEBUG << "WaveFileModel::fill: Waiting for channels..." << endl;
Chris@187 677 sleep(1);
Chris@187 678 channels = m_model.getChannelCount();
Chris@187 679 }
Chris@187 680 }
Chris@147 681
Chris@147 682 Range *range = new Range[2 * channels];
Chris@410 683 float *means = new float[2 * channels];
Chris@929 684 int count[2];
Chris@147 685 count[0] = count[1] = 0;
Chris@411 686 for (int i = 0; i < 2 * channels; ++i) {
Chris@411 687 means[i] = 0.f;
Chris@411 688 }
Chris@176 689
Chris@176 690 bool first = true;
Chris@176 691
Chris@176 692 while (first || updating) {
Chris@176 693
Chris@176 694 updating = m_model.m_reader->isUpdating();
Chris@187 695 m_frameCount = m_model.getFrameCount();
Chris@175 696
Chris@690 697 // SVDEBUG << "WaveFileModel::fill: frame = " << frame << ", count = " << m_frameCount << endl;
Chris@147 698
Chris@176 699 while (frame < m_frameCount) {
Chris@147 700
Chris@690 701 // SVDEBUG << "WaveFileModel::fill inner loop: frame = " << frame << ", count = " << m_frameCount << ", blocksize " << readBlockSize << endl;
Chris@265 702
Chris@176 703 if (updating && (frame + readBlockSize > m_frameCount)) break;
Chris@176 704
Chris@176 705 m_model.m_reader->getInterleavedFrames(frame, readBlockSize, block);
Chris@176 706
Chris@843 707 // cerr << "block is " << block.size() << endl;
Chris@265 708
Chris@411 709 for (int i = 0; i < readBlockSize; ++i) {
Chris@147 710
Chris@929 711 if (channels * i + channels > (int)block.size()) break;
Chris@232 712
Chris@411 713 for (int ch = 0; ch < channels; ++ch) {
Chris@147 714
Chris@411 715 int index = channels * i + ch;
Chris@176 716 float sample = block[index];
Chris@176 717
Chris@411 718 for (int ct = 0; ct < 2; ++ct) { // cache type
Chris@176 719
Chris@411 720 int rangeIndex = ch * 2 + ct;
Chris@176 721
Chris@410 722 if (sample > range[rangeIndex].max() || count[ct] == 0) {
Chris@410 723 range[rangeIndex].setMax(sample);
Chris@176 724 }
Chris@410 725 if (sample < range[rangeIndex].min() || count[ct] == 0) {
Chris@410 726 range[rangeIndex].setMin(sample);
Chris@176 727 }
Chris@410 728
Chris@410 729 means[rangeIndex] += fabsf(sample);
Chris@176 730 }
Chris@176 731 }
Chris@147 732
Chris@176 733 QMutexLocker locker(&m_model.m_mutex);
Chris@232 734
Chris@929 735 for (int ct = 0; ct < 2; ++ct) {
Chris@232 736
Chris@176 737 if (++count[ct] == cacheBlockSize[ct]) {
Chris@410 738
Chris@929 739 for (int ch = 0; ch < int(channels); ++ch) {
Chris@929 740 int rangeIndex = ch * 2 + ct;
Chris@410 741 means[rangeIndex] /= count[ct];
Chris@410 742 range[rangeIndex].setAbsmean(means[rangeIndex]);
Chris@176 743 m_model.m_cache[ct].push_back(range[rangeIndex]);
Chris@176 744 range[rangeIndex] = Range();
Chris@411 745 means[rangeIndex] = 0.f;
Chris@176 746 }
Chris@232 747
Chris@176 748 count[ct] = 0;
Chris@176 749 }
Chris@176 750 }
Chris@147 751
Chris@176 752 ++frame;
Chris@147 753 }
Chris@147 754
Chris@176 755 if (m_model.m_exiting) break;
Chris@176 756
Chris@176 757 m_fillExtent = frame;
Chris@147 758 }
Chris@147 759
Chris@843 760 // cerr << "WaveFileModel: inner loop ended" << endl;
Chris@265 761
Chris@176 762 first = false;
Chris@177 763 if (m_model.m_exiting) break;
Chris@187 764 if (updating) {
Chris@843 765 // cerr << "sleeping..." << endl;
Chris@187 766 sleep(1);
Chris@187 767 }
Chris@147 768 }
Chris@147 769
Chris@177 770 if (!m_model.m_exiting) {
Chris@177 771
Chris@177 772 QMutexLocker locker(&m_model.m_mutex);
Chris@232 773
Chris@929 774 for (int ct = 0; ct < 2; ++ct) {
Chris@232 775
Chris@177 776 if (count[ct] > 0) {
Chris@232 777
Chris@929 778 for (int ch = 0; ch < int(channels); ++ch) {
Chris@929 779 int rangeIndex = ch * 2 + ct;
Chris@410 780 means[rangeIndex] /= count[ct];
Chris@410 781 range[rangeIndex].setAbsmean(means[rangeIndex]);
Chris@177 782 m_model.m_cache[ct].push_back(range[rangeIndex]);
Chris@177 783 range[rangeIndex] = Range();
Chris@411 784 means[rangeIndex] = 0.f;
Chris@177 785 }
Chris@232 786
Chris@177 787 count[ct] = 0;
Chris@147 788 }
Chris@177 789
Chris@177 790 const Range &rr = *m_model.m_cache[ct].begin();
Chris@177 791 MUNLOCK(&rr, m_model.m_cache[ct].capacity() * sizeof(Range));
Chris@147 792 }
Chris@147 793 }
Chris@147 794
Chris@410 795 delete[] means;
Chris@147 796 delete[] range;
Chris@147 797
Chris@175 798 m_fillExtent = m_frameCount;
Chris@236 799
Chris@236 800 #ifdef DEBUG_WAVE_FILE_MODEL
Chris@929 801 for (int ct = 0; ct < 2; ++ct) {
Chris@236 802 cerr << "Cache type " << ct << " now contains " << m_model.m_cache[ct].size() << " ranges" << endl;
Chris@236 803 }
Chris@236 804 #endif
Chris@147 805 }
Chris@147 806
Chris@163 807 void
Chris@163 808 WaveFileModel::toXml(QTextStream &out,
Chris@163 809 QString indent,
Chris@163 810 QString extraAttributes) const
Chris@163 811 {
Chris@163 812 Model::toXml(out, indent,
Chris@163 813 QString("type=\"wavefile\" file=\"%1\" %2")
Chris@279 814 .arg(encodeEntities(m_path)).arg(extraAttributes));
Chris@163 815 }
Chris@163 816
Chris@147 817