annotate data/fileio/CodedAudioFileReader.cpp @ 1448:8305d442d1f7 streaming-csv-writer

Remove anonymous namespace
author Lucas Thompson <dev@lucas.im>
date Tue, 17 Apr 2018 10:03:50 +0100
parents edee37ae5882
children cee1be4fb8c1
rev   line source
Chris@148 1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
Chris@148 2
Chris@148 3 /*
Chris@148 4 Sonic Visualiser
Chris@148 5 An audio file viewer and annotation editor.
Chris@148 6 Centre for Digital Music, Queen Mary, University of London.
Chris@297 7 This file copyright 2006-2007 Chris Cannam and QMUL.
Chris@148 8
Chris@148 9 This program is free software; you can redistribute it and/or
Chris@148 10 modify it under the terms of the GNU General Public License as
Chris@148 11 published by the Free Software Foundation; either version 2 of the
Chris@148 12 License, or (at your option) any later version. See the file
Chris@148 13 COPYING included with this distribution for more information.
Chris@148 14 */
Chris@148 15
Chris@148 16 #include "CodedAudioFileReader.h"
Chris@148 17
Chris@148 18 #include "WavFileReader.h"
Chris@148 19 #include "base/TempDirectory.h"
Chris@148 20 #include "base/Exceptions.h"
Chris@192 21 #include "base/Profiler.h"
Chris@297 22 #include "base/Serialiser.h"
Chris@1098 23 #include "base/StorageAdviser.h"
Chris@148 24
Chris@1318 25 #include <bqresample/Resampler.h>
Chris@1318 26
Chris@723 27 #include <stdint.h>
Chris@148 28 #include <iostream>
Chris@148 29 #include <QDir>
Chris@263 30 #include <QMutexLocker>
Chris@148 31
Chris@1096 32 using namespace std;
Chris@1096 33
Chris@297 34 CodedAudioFileReader::CodedAudioFileReader(CacheMode cacheMode,
Chris@1040 35 sv_samplerate_t targetRate,
Chris@920 36 bool normalised) :
Chris@148 37 m_cacheMode(cacheMode),
Chris@148 38 m_initialised(false),
Chris@297 39 m_serialiser(0),
Chris@297 40 m_fileRate(0),
Chris@148 41 m_cacheFileWritePtr(0),
Chris@148 42 m_cacheFileReader(0),
Chris@148 43 m_cacheWriteBuffer(0),
Chris@148 44 m_cacheWriteBufferIndex(0),
Chris@1320 45 m_cacheWriteBufferFrames(65536),
Chris@297 46 m_resampler(0),
Chris@757 47 m_resampleBuffer(0),
Chris@1320 48 m_resampleBufferFrames(0),
Chris@920 49 m_fileFrameCount(0),
Chris@920 50 m_normalised(normalised),
Chris@920 51 m_max(0.f),
Chris@1285 52 m_gain(1.f),
Chris@1305 53 m_trimFromStart(0),
Chris@1305 54 m_trimFromEnd(0),
Chris@1285 55 m_clippedCount(0),
Chris@1286 56 m_firstNonzero(0),
Chris@1286 57 m_lastNonzero(0)
Chris@148 58 {
Chris@1279 59 SVDEBUG << "CodedAudioFileReader:: cache mode: " << cacheMode
Chris@1279 60 << " (" << (cacheMode == CacheInTemporaryFile
Chris@1279 61 ? "CacheInTemporaryFile" : "CacheInMemory") << ")"
Chris@1279 62 << ", rate: " << targetRate
Chris@1279 63 << (targetRate == 0 ? " (use source rate)" : "")
Chris@1279 64 << ", normalised: " << normalised << endl;
Chris@297 65
Chris@297 66 m_frameCount = 0;
Chris@297 67 m_sampleRate = targetRate;
Chris@148 68 }
Chris@148 69
Chris@148 70 CodedAudioFileReader::~CodedAudioFileReader()
Chris@148 71 {
Chris@263 72 QMutexLocker locker(&m_cacheMutex);
Chris@263 73
Chris@1279 74 if (m_serialiser) endSerialised();
Chris@1098 75
Chris@148 76 if (m_cacheFileWritePtr) sf_close(m_cacheFileWritePtr);
Chris@297 77
Chris@742 78 SVDEBUG << "CodedAudioFileReader::~CodedAudioFileReader: deleting cache file reader" << endl;
Chris@532 79
Chris@297 80 delete m_cacheFileReader;
Chris@297 81 delete[] m_cacheWriteBuffer;
Chris@1279 82
Chris@148 83 if (m_cacheFileName != "") {
Chris@1279 84 SVDEBUG << "CodedAudioFileReader::~CodedAudioFileReader: deleting cache file " << m_cacheFileName << endl;
Chris@290 85 if (!QFile(m_cacheFileName).remove()) {
Chris@1279 86 SVDEBUG << "WARNING: CodedAudioFileReader::~CodedAudioFileReader: Failed to delete cache file \"" << m_cacheFileName << "\"" << endl;
Chris@148 87 }
Chris@148 88 }
Chris@297 89
Chris@297 90 delete m_resampler;
Chris@297 91 delete[] m_resampleBuffer;
Chris@1098 92
Chris@1098 93 if (!m_data.empty()) {
Chris@1098 94 StorageAdviser::notifyDoneAllocation
Chris@1098 95 (StorageAdviser::MemoryAllocation,
Chris@1098 96 (m_data.size() * sizeof(float)) / 1024);
Chris@1098 97 }
Chris@297 98 }
Chris@297 99
Chris@297 100 void
Chris@1307 101 CodedAudioFileReader::setFramesToTrim(sv_frame_t fromStart, sv_frame_t fromEnd)
Chris@1305 102 {
Chris@1305 103 m_trimFromStart = fromStart;
Chris@1305 104 m_trimFromEnd = fromEnd;
Chris@1305 105 }
Chris@1305 106
Chris@1305 107 void
Chris@297 108 CodedAudioFileReader::startSerialised(QString id)
Chris@297 109 {
Chris@1279 110 SVDEBUG << "CodedAudioFileReader(" << this << ")::startSerialised: id = " << id << endl;
Chris@297 111
Chris@297 112 delete m_serialiser;
Chris@297 113 m_serialiser = new Serialiser(id);
Chris@297 114 }
Chris@297 115
Chris@297 116 void
Chris@297 117 CodedAudioFileReader::endSerialised()
Chris@297 118 {
Chris@844 119 SVDEBUG << "CodedAudioFileReader(" << this << ")::endSerialised: id = " << (m_serialiser ? m_serialiser->getId() : "(none)") << endl;
Chris@297 120
Chris@297 121 delete m_serialiser;
Chris@297 122 m_serialiser = 0;
Chris@148 123 }
Chris@148 124
Chris@148 125 void
Chris@148 126 CodedAudioFileReader::initialiseDecodeCache()
Chris@148 127 {
Chris@263 128 QMutexLocker locker(&m_cacheMutex);
Chris@263 129
Chris@742 130 SVDEBUG << "CodedAudioFileReader::initialiseDecodeCache: file rate = " << m_fileRate << endl;
Chris@297 131
Chris@1307 132 if (m_channelCount == 0) {
Chris@1307 133 SVCERR << "CodedAudioFileReader::initialiseDecodeCache: No channel count set!" << endl;
Chris@1307 134 throw std::logic_error("No channel count set");
Chris@1307 135 }
Chris@1307 136
Chris@297 137 if (m_fileRate == 0) {
Chris@1279 138 SVDEBUG << "CodedAudioFileReader::initialiseDecodeCache: ERROR: File sample rate unknown (bug in subclass implementation?)" << endl;
Chris@1354 139 throw FileOperationFailed("(coded file)", "sample rate unknown (bug in subclass implementation?)");
Chris@297 140 }
Chris@297 141 if (m_sampleRate == 0) {
Chris@297 142 m_sampleRate = m_fileRate;
Chris@690 143 SVDEBUG << "CodedAudioFileReader::initialiseDecodeCache: rate (from file) = " << m_fileRate << endl;
Chris@297 144 }
Chris@297 145 if (m_fileRate != m_sampleRate) {
Chris@757 146 SVDEBUG << "CodedAudioFileReader: resampling " << m_fileRate << " -> " << m_sampleRate << endl;
Chris@1329 147
Chris@1329 148 breakfastquay::Resampler::Parameters params;
Chris@1329 149 params.quality = breakfastquay::Resampler::FastestTolerable;
Chris@1329 150 params.maxBufferSize = int(m_cacheWriteBufferFrames);
Chris@1329 151 params.initialSampleRate = m_fileRate;
Chris@1329 152 m_resampler = new breakfastquay::Resampler(params, m_channelCount);
Chris@1329 153
Chris@1040 154 double ratio = m_sampleRate / m_fileRate;
Chris@1320 155 m_resampleBufferFrames = int(ceil(double(m_cacheWriteBufferFrames) *
Chris@1320 156 ratio + 1));
Chris@1320 157 m_resampleBuffer = new float[m_resampleBufferFrames * m_channelCount];
Chris@297 158 }
Chris@297 159
Chris@1320 160 m_cacheWriteBuffer = new float[m_cacheWriteBufferFrames * m_channelCount];
Chris@297 161 m_cacheWriteBufferIndex = 0;
Chris@297 162
Chris@148 163 if (m_cacheMode == CacheInTemporaryFile) {
Chris@148 164
Chris@148 165 try {
Chris@148 166 QDir dir(TempDirectory::getInstance()->getPath());
Chris@1359 167 m_cacheFileName = dir.filePath(QString("decoded_%1.w64")
Chris@290 168 .arg((intptr_t)this));
Chris@148 169
Chris@148 170 SF_INFO fileInfo;
Chris@1040 171 int fileRate = int(round(m_sampleRate));
Chris@1040 172 if (m_sampleRate != sv_samplerate_t(fileRate)) {
Chris@1279 173 SVDEBUG << "CodedAudioFileReader: WARNING: Non-integer sample rate "
Chris@1040 174 << m_sampleRate << " presented for writing, rounding to " << fileRate
Chris@1040 175 << endl;
Chris@1040 176 }
Chris@1040 177 fileInfo.samplerate = fileRate;
Chris@148 178 fileInfo.channels = m_channelCount;
Chris@1161 179
Chris@1161 180 // Previously we were writing SF_FORMAT_PCM_16 and in a
Chris@1161 181 // comment I wrote: "No point in writing 24-bit or float;
Chris@1161 182 // generally this class is used for decoding files that
Chris@1161 183 // have come from a 16 bit source or that decode to only
Chris@1161 184 // 16 bits anyway." That was naive -- we want to preserve
Chris@1161 185 // the original values to the same float precision that we
Chris@1161 186 // use internally. Saving PCM_16 obviously doesn't
Chris@1161 187 // preserve values for sources at bit depths greater than
Chris@1161 188 // 16, but it also doesn't always do so for sources at bit
Chris@1161 189 // depths less than 16.
Chris@1161 190 //
Chris@1161 191 // (This came to light with a bug in libsndfile 1.0.26,
Chris@1161 192 // which always reports every file as non-seekable, so
Chris@1161 193 // that coded readers were being used even for WAV
Chris@1161 194 // files. This changed the values that came from PCM_8 WAV
Chris@1161 195 // sources, breaking Sonic Annotator's output comparison
Chris@1161 196 // tests.)
Chris@1161 197 //
Chris@1161 198 // So: now we write floats.
Chris@1359 199 fileInfo.format = SF_FORMAT_W64 | SF_FORMAT_FLOAT;
Chris@1359 200
Chris@1359 201 #ifdef Q_OS_WIN
Chris@1359 202 m_cacheFileWritePtr = sf_wchar_open
Chris@1361 203 ((LPCWSTR)m_cacheFileName.utf16(), SFM_WRITE, &fileInfo);
Chris@1359 204 #else
Chris@1359 205 m_cacheFileWritePtr = sf_open
Chris@1359 206 (m_cacheFileName.toLocal8Bit(), SFM_WRITE, &fileInfo);
Chris@1359 207 #endif
Chris@148 208
Chris@265 209 if (m_cacheFileWritePtr) {
Chris@265 210
Chris@297 211 // Ideally we would do this now only if we were in a
Chris@297 212 // threaded mode -- creating the reader later if we're
Chris@297 213 // not threaded -- but we don't have access to that
Chris@297 214 // information here
Chris@265 215
Chris@265 216 m_cacheFileReader = new WavFileReader(m_cacheFileName);
Chris@265 217
Chris@265 218 if (!m_cacheFileReader->isOK()) {
Chris@1279 219 SVDEBUG << "ERROR: CodedAudioFileReader::initialiseDecodeCache: Failed to construct WAV file reader for temporary file: " << m_cacheFileReader->getError() << endl;
Chris@265 220 delete m_cacheFileReader;
Chris@265 221 m_cacheFileReader = 0;
Chris@265 222 m_cacheMode = CacheInMemory;
Chris@265 223 sf_close(m_cacheFileWritePtr);
Chris@265 224 }
Chris@297 225
Chris@265 226 } else {
Chris@1279 227 SVDEBUG << "CodedAudioFileReader::initialiseDecodeCache: failed to open cache file \"" << m_cacheFileName << "\" (" << m_channelCount << " channels, sample rate " << m_sampleRate << " for writing, falling back to in-memory cache" << endl;
Chris@148 228 m_cacheMode = CacheInMemory;
Chris@148 229 }
Chris@265 230
Chris@148 231 } catch (DirectoryCreationFailed f) {
Chris@1279 232 SVDEBUG << "CodedAudioFileReader::initialiseDecodeCache: failed to create temporary directory! Falling back to in-memory cache" << endl;
Chris@148 233 m_cacheMode = CacheInMemory;
Chris@148 234 }
Chris@148 235 }
Chris@148 236
Chris@148 237 if (m_cacheMode == CacheInMemory) {
Chris@148 238 m_data.clear();
Chris@148 239 }
Chris@148 240
Chris@1320 241 if (m_trimFromEnd >= (m_cacheWriteBufferFrames * m_channelCount)) {
Chris@1320 242 SVCERR << "WARNING: CodedAudioFileReader::setSamplesToTrim: Can't handle trimming more frames from end (" << m_trimFromEnd << ") than can be stored in cache-write buffer (" << (m_cacheWriteBufferFrames * m_channelCount) << "), won't trim anything from the end after all";
Chris@1307 243 m_trimFromEnd = 0;
Chris@1307 244 }
Chris@1307 245
Chris@148 246 m_initialised = true;
Chris@148 247 }
Chris@148 248
Chris@148 249 void
Chris@1038 250 CodedAudioFileReader::addSamplesToDecodeCache(float **samples, sv_frame_t nframes)
Chris@148 251 {
Chris@263 252 QMutexLocker locker(&m_cacheMutex);
Chris@263 253
Chris@148 254 if (!m_initialised) return;
Chris@148 255
Chris@1038 256 for (sv_frame_t i = 0; i < nframes; ++i) {
Chris@1305 257
Chris@1305 258 if (m_trimFromStart > 0) {
Chris@1305 259 --m_trimFromStart;
Chris@1305 260 continue;
Chris@1305 261 }
Chris@297 262
Chris@929 263 for (int c = 0; c < m_channelCount; ++c) {
Chris@148 264
Chris@297 265 float sample = samples[c][i];
Chris@297 266 m_cacheWriteBuffer[m_cacheWriteBufferIndex++] = sample;
Chris@148 267
Chris@1306 268 }
Chris@297 269
Chris@1306 270 pushCacheWriteBufferMaybe(false);
Chris@297 271 }
Chris@297 272 }
Chris@297 273
Chris@297 274 void
Chris@1038 275 CodedAudioFileReader::addSamplesToDecodeCache(float *samples, sv_frame_t nframes)
Chris@297 276 {
Chris@297 277 QMutexLocker locker(&m_cacheMutex);
Chris@297 278
Chris@297 279 if (!m_initialised) return;
Chris@297 280
Chris@1038 281 for (sv_frame_t i = 0; i < nframes; ++i) {
Chris@1305 282
Chris@1305 283 if (m_trimFromStart > 0) {
Chris@1305 284 --m_trimFromStart;
Chris@1305 285 continue;
Chris@1305 286 }
Chris@297 287
Chris@929 288 for (int c = 0; c < m_channelCount; ++c) {
Chris@297 289
Chris@297 290 float sample = samples[i * m_channelCount + c];
Chris@297 291
Chris@297 292 m_cacheWriteBuffer[m_cacheWriteBufferIndex++] = sample;
Chris@1306 293 }
Chris@297 294
Chris@1306 295 pushCacheWriteBufferMaybe(false);
Chris@297 296 }
Chris@297 297 }
Chris@297 298
Chris@297 299 void
Chris@1326 300 CodedAudioFileReader::addSamplesToDecodeCache(const floatvec_t &samples)
Chris@297 301 {
Chris@297 302 QMutexLocker locker(&m_cacheMutex);
Chris@297 303
Chris@297 304 if (!m_initialised) return;
Chris@297 305
Chris@1038 306 for (float sample: samples) {
Chris@1305 307
Chris@1305 308 if (m_trimFromStart > 0) {
Chris@1305 309 --m_trimFromStart;
Chris@1305 310 continue;
Chris@1305 311 }
Chris@297 312
Chris@148 313 m_cacheWriteBuffer[m_cacheWriteBufferIndex++] = sample;
Chris@148 314
Chris@1306 315 pushCacheWriteBufferMaybe(false);
Chris@148 316 }
Chris@148 317 }
Chris@148 318
Chris@148 319 void
Chris@148 320 CodedAudioFileReader::finishDecodeCache()
Chris@148 321 {
Chris@263 322 QMutexLocker locker(&m_cacheMutex);
Chris@263 323
Chris@1295 324 Profiler profiler("CodedAudioFileReader::finishDecodeCache");
Chris@192 325
Chris@148 326 if (!m_initialised) {
Chris@1279 327 SVDEBUG << "WARNING: CodedAudioFileReader::finishDecodeCache: Cache was never initialised!" << endl;
Chris@148 328 return;
Chris@148 329 }
Chris@148 330
Chris@1306 331 pushCacheWriteBufferMaybe(true);
Chris@297 332
Chris@297 333 delete[] m_cacheWriteBuffer;
Chris@297 334 m_cacheWriteBuffer = 0;
Chris@297 335
Chris@297 336 delete[] m_resampleBuffer;
Chris@297 337 m_resampleBuffer = 0;
Chris@297 338
Chris@297 339 delete m_resampler;
Chris@297 340 m_resampler = 0;
Chris@297 341
Chris@297 342 if (m_cacheMode == CacheInTemporaryFile) {
Chris@1098 343
Chris@297 344 sf_close(m_cacheFileWritePtr);
Chris@297 345 m_cacheFileWritePtr = 0;
Chris@297 346 if (m_cacheFileReader) m_cacheFileReader->updateFrameCount();
Chris@1098 347
Chris@1098 348 } else {
Chris@1098 349 // I know, I know, we already allocated it...
Chris@1098 350 StorageAdviser::notifyPlannedAllocation
Chris@1098 351 (StorageAdviser::MemoryAllocation,
Chris@1098 352 (m_data.size() * sizeof(float)) / 1024);
Chris@297 353 }
Chris@1285 354
Chris@1285 355 SVDEBUG << "CodedAudioFileReader: File decodes to " << m_fileFrameCount
Chris@1285 356 << " frames" << endl;
Chris@1285 357 if (m_fileFrameCount != m_frameCount) {
Chris@1285 358 SVDEBUG << "CodedAudioFileReader: Resampled to " << m_frameCount
Chris@1285 359 << " frames" << endl;
Chris@1285 360 }
Chris@1285 361 SVDEBUG << "CodedAudioFileReader: Signal abs max is " << m_max
Chris@1285 362 << ", " << m_clippedCount
Chris@1285 363 << " samples clipped, first non-zero frame is at "
Chris@1286 364 << m_firstNonzero << ", last at " << m_lastNonzero << endl;
Chris@1285 365 if (m_normalised) {
Chris@1285 366 SVDEBUG << "CodedAudioFileReader: Normalising, gain is " << m_gain << endl;
Chris@1285 367 }
Chris@297 368 }
Chris@297 369
Chris@297 370 void
Chris@1306 371 CodedAudioFileReader::pushCacheWriteBufferMaybe(bool final)
Chris@1306 372 {
Chris@1306 373 if (final ||
Chris@1306 374 (m_cacheWriteBufferIndex ==
Chris@1320 375 m_cacheWriteBufferFrames * m_channelCount)) {
Chris@1307 376
Chris@1307 377 if (m_trimFromEnd > 0) {
Chris@1306 378
Chris@1307 379 sv_frame_t framesToPush =
Chris@1307 380 (m_cacheWriteBufferIndex / m_channelCount) - m_trimFromEnd;
Chris@1307 381
Chris@1307 382 if (framesToPush <= 0 && !final) {
Chris@1307 383 // This won't do, the buffer is full so we have to push
Chris@1307 384 // something. Should have checked for this earlier
Chris@1307 385 throw std::logic_error("Buffer full but nothing to push");
Chris@1307 386 }
Chris@1307 387
Chris@1307 388 pushBuffer(m_cacheWriteBuffer, framesToPush, final);
Chris@1307 389
Chris@1307 390 m_cacheWriteBufferIndex -= framesToPush * m_channelCount;
Chris@1307 391
Chris@1307 392 for (sv_frame_t i = 0; i < m_cacheWriteBufferIndex; ++i) {
Chris@1307 393 m_cacheWriteBuffer[i] =
Chris@1307 394 m_cacheWriteBuffer[framesToPush * m_channelCount + i];
Chris@1307 395 }
Chris@1307 396
Chris@1307 397 } else {
Chris@1307 398
Chris@1307 399 pushBuffer(m_cacheWriteBuffer,
Chris@1307 400 m_cacheWriteBufferIndex / m_channelCount,
Chris@1307 401 final);
Chris@1307 402
Chris@1307 403 m_cacheWriteBufferIndex = 0;
Chris@1307 404 }
Chris@1306 405
Chris@1306 406 if (m_cacheFileReader) {
Chris@1306 407 m_cacheFileReader->updateFrameCount();
Chris@1306 408 }
Chris@1306 409 }
Chris@1306 410 }
Chris@1306 411
Chris@1306 412 sv_frame_t
Chris@1038 413 CodedAudioFileReader::pushBuffer(float *buffer, sv_frame_t sz, bool final)
Chris@297 414 {
Chris@757 415 m_fileFrameCount += sz;
Chris@757 416
Chris@1040 417 double ratio = 1.0;
Chris@758 418 if (m_resampler && m_fileRate != 0) {
Chris@1040 419 ratio = m_sampleRate / m_fileRate;
Chris@758 420 }
Chris@758 421
Chris@1040 422 if (ratio != 1.0) {
Chris@758 423 pushBufferResampling(buffer, sz, ratio, final);
Chris@758 424 } else {
Chris@758 425 pushBufferNonResampling(buffer, sz);
Chris@758 426 }
Chris@1306 427
Chris@1306 428 return sz;
Chris@758 429 }
Chris@757 430
Chris@758 431 void
Chris@1038 432 CodedAudioFileReader::pushBufferNonResampling(float *buffer, sv_frame_t sz)
Chris@758 433 {
Chris@920 434 float clip = 1.0;
Chris@1038 435 sv_frame_t count = sz * m_channelCount;
Chris@318 436
Chris@1305 437 // statistics
Chris@1286 438 for (sv_frame_t j = 0; j < sz; ++j) {
Chris@1286 439 for (int c = 0; c < m_channelCount; ++c) {
Chris@1286 440 sv_frame_t i = j * m_channelCount + c;
Chris@1286 441 float v = buffer[i];
Chris@1286 442 if (!m_normalised) {
Chris@1286 443 if (v > clip) {
Chris@1286 444 buffer[i] = clip;
Chris@1286 445 ++m_clippedCount;
Chris@1286 446 } else if (v < -clip) {
Chris@1286 447 buffer[i] = -clip;
Chris@1286 448 ++m_clippedCount;
Chris@1286 449 }
Chris@1285 450 }
Chris@1286 451 v = fabsf(v);
Chris@1286 452 if (v != 0.f) {
Chris@1286 453 if (m_firstNonzero == 0) {
Chris@1286 454 m_firstNonzero = m_frameCount;
Chris@1286 455 }
Chris@1286 456 m_lastNonzero = m_frameCount;
Chris@1286 457 if (v > m_max) {
Chris@1286 458 m_max = v;
Chris@1286 459 }
Chris@920 460 }
Chris@920 461 }
Chris@1286 462 ++m_frameCount;
Chris@297 463 }
Chris@297 464
Chris@1286 465 if (m_max > 0.f) {
Chris@1286 466 m_gain = 1.f / m_max; // used when normalising only
Chris@1286 467 }
Chris@297 468
Chris@148 469 switch (m_cacheMode) {
Chris@148 470
Chris@148 471 case CacheInTemporaryFile:
Chris@1038 472 if (sf_writef_float(m_cacheFileWritePtr, buffer, sz) < sz) {
Chris@544 473 sf_close(m_cacheFileWritePtr);
Chris@544 474 m_cacheFileWritePtr = 0;
Chris@544 475 throw InsufficientDiscSpace(TempDirectory::getInstance()->getPath());
Chris@544 476 }
Chris@148 477 break;
Chris@148 478
Chris@148 479 case CacheInMemory:
Chris@1100 480 m_dataLock.lock();
Chris@1401 481 try {
Chris@1401 482 m_data.insert(m_data.end(), buffer, buffer + count);
Chris@1401 483 } catch (const std::bad_alloc &e) {
Chris@1401 484 m_data.clear();
Chris@1403 485 SVCERR << "CodedAudioFileReader: Caught bad_alloc when trying to add " << count << " elements to buffer" << endl;
Chris@1401 486 m_dataLock.unlock();
Chris@1401 487 throw e;
Chris@1401 488 }
Chris@543 489 m_dataLock.unlock();
Chris@148 490 break;
Chris@148 491 }
Chris@758 492 }
Chris@757 493
Chris@758 494 void
Chris@1038 495 CodedAudioFileReader::pushBufferResampling(float *buffer, sv_frame_t sz,
Chris@1038 496 double ratio, bool final)
Chris@758 497 {
Chris@1306 498 // SVDEBUG << "pushBufferResampling: ratio = " << ratio << ", sz = " << sz << ", final = " << final << endl;
Chris@757 499
Chris@759 500 if (sz > 0) {
Chris@759 501
Chris@1038 502 sv_frame_t out = m_resampler->resampleInterleaved
Chris@1320 503 (m_resampleBuffer,
Chris@1320 504 m_resampleBufferFrames,
Chris@1320 505 buffer,
Chris@1323 506 int(sz),
Chris@759 507 ratio,
Chris@759 508 false);
Chris@759 509
Chris@759 510 pushBufferNonResampling(m_resampleBuffer, out);
Chris@759 511 }
Chris@757 512
Chris@758 513 if (final) {
Chris@758 514
Chris@1038 515 sv_frame_t padFrames = 1;
Chris@1038 516 if (double(m_frameCount) / ratio < double(m_fileFrameCount)) {
Chris@1038 517 padFrames = m_fileFrameCount - sv_frame_t(double(m_frameCount) / ratio) + 1;
Chris@757 518 }
Chris@758 519
Chris@1038 520 sv_frame_t padSamples = padFrames * m_channelCount;
Chris@758 521
Chris@1307 522 SVDEBUG << "CodedAudioFileReader::pushBufferResampling: frameCount = " << m_frameCount << ", equivFileFrames = " << double(m_frameCount) / ratio << ", m_fileFrameCount = " << m_fileFrameCount << ", padFrames = " << padFrames << ", padSamples = " << padSamples << endl;
Chris@758 523
Chris@758 524 float *padding = new float[padSamples];
Chris@1038 525 for (sv_frame_t i = 0; i < padSamples; ++i) padding[i] = 0.f;
Chris@758 526
Chris@1038 527 sv_frame_t out = m_resampler->resampleInterleaved
Chris@1320 528 (m_resampleBuffer,
Chris@1320 529 m_resampleBufferFrames,
Chris@1320 530 padding,
Chris@1323 531 int(padFrames),
Chris@758 532 ratio,
Chris@758 533 true);
Chris@758 534
Chris@1379 535 SVDEBUG << "CodedAudioFileReader::pushBufferResampling: resampled padFrames to " << out << " frames" << endl;
Chris@1379 536
Chris@1379 537 sv_frame_t expected = sv_frame_t(round(double(m_fileFrameCount) * ratio));
Chris@1379 538 if (m_frameCount + out > expected) {
Chris@1379 539 out = expected - m_frameCount;
Chris@1379 540 SVDEBUG << "CodedAudioFileReader::pushBufferResampling: clipping that to " << out << " to avoid producing more samples than desired" << endl;
Chris@759 541 }
Chris@759 542
Chris@758 543 pushBufferNonResampling(m_resampleBuffer, out);
Chris@758 544 delete[] padding;
Chris@757 545 }
Chris@148 546 }
Chris@148 547
Chris@1326 548 floatvec_t
Chris@1041 549 CodedAudioFileReader::getInterleavedFrames(sv_frame_t start, sv_frame_t count) const
Chris@148 550 {
Chris@543 551 // Lock is only required in CacheInMemory mode (the cache file
Chris@543 552 // reader is expected to be thread safe and manage its own
Chris@543 553 // locking)
Chris@263 554
Chris@265 555 if (!m_initialised) {
Chris@690 556 SVDEBUG << "CodedAudioFileReader::getInterleavedFrames: not initialised" << endl;
Chris@1096 557 return {};
Chris@265 558 }
Chris@148 559
Chris@1326 560 floatvec_t frames;
Chris@1041 561
Chris@148 562 switch (m_cacheMode) {
Chris@148 563
Chris@148 564 case CacheInTemporaryFile:
Chris@148 565 if (m_cacheFileReader) {
Chris@1041 566 frames = m_cacheFileReader->getInterleavedFrames(start, count);
Chris@148 567 }
Chris@148 568 break;
Chris@148 569
Chris@148 570 case CacheInMemory:
Chris@148 571 {
Chris@1096 572 if (!isOK()) return {};
Chris@1096 573 if (count == 0) return {};
Chris@148 574
Chris@1100 575 sv_frame_t ix0 = start * m_channelCount;
Chris@1100 576 sv_frame_t ix1 = ix0 + (count * m_channelCount);
Chris@148 577
Chris@1100 578 // This lock used to be a QReadWriteLock, but it appears that
Chris@1100 579 // its lock mechanism is significantly slower than QMutex so
Chris@1100 580 // it's not a good idea in cases like this where we don't
Chris@1100 581 // really have threads taking a long time to read concurrently
Chris@1100 582 m_dataLock.lock();
Chris@1100 583 sv_frame_t n = sv_frame_t(m_data.size());
Chris@1282 584 if (ix0 > n) ix0 = n;
Chris@1100 585 if (ix1 > n) ix1 = n;
Chris@1326 586 frames = floatvec_t(m_data.begin() + ix0, m_data.begin() + ix1);
Chris@543 587 m_dataLock.unlock();
Chris@1282 588 break;
Chris@148 589 }
Chris@148 590 }
Chris@920 591
Chris@920 592 if (m_normalised) {
Chris@1052 593 for (auto &f: frames) f *= m_gain;
Chris@920 594 }
Chris@1041 595
Chris@1041 596 return frames;
Chris@148 597 }
Chris@148 598