Mercurial > hg > svcore
view data/model/WaveFileModel.cpp @ 1114:e80abd659922 3.0-integration
Merge from default branch
author | Chris Cannam |
---|---|
date | Tue, 07 Jul 2015 17:39:06 +0100 |
parents | 5cbf71022679 |
children | efea94b04d5a |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This file copyright 2006 Chris Cannam and QMUL. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #include "WaveFileModel.h" #include "fileio/AudioFileReader.h" #include "fileio/AudioFileReaderFactory.h" #include "system/System.h" #include "base/Preferences.h" #include <QFileInfo> #include <QTextStream> #include <iostream> #include <unistd.h> #include <cmath> #include <sndfile.h> #include <cassert> using namespace std; //#define DEBUG_WAVE_FILE_MODEL 1 PowerOfSqrtTwoZoomConstraint WaveFileModel::m_zoomConstraint; WaveFileModel::WaveFileModel(FileSource source, sv_samplerate_t targetRate) : m_source(source), m_path(source.getLocation()), m_reader(0), m_myReader(true), m_startFrame(0), m_fillThread(0), m_updateTimer(0), m_lastFillExtent(0), m_exiting(false), m_lastDirectReadStart(0), m_lastDirectReadCount(0) { m_source.waitForData(); if (m_source.isOK()) { bool normalise = Preferences::getInstance()->getNormaliseAudio(); m_reader = AudioFileReaderFactory::createThreadingReader (m_source, targetRate, normalise); if (m_reader) { SVDEBUG << "WaveFileModel::WaveFileModel: reader rate: " << m_reader->getSampleRate() << endl; } } if (m_reader) setObjectName(m_reader->getTitle()); if (objectName() == "") setObjectName(QFileInfo(m_path).fileName()); if (isOK()) fillCache(); } WaveFileModel::WaveFileModel(FileSource source, AudioFileReader *reader) : m_source(source), m_path(source.getLocation()), m_reader(0), m_myReader(false), m_startFrame(0), m_fillThread(0), m_updateTimer(0), m_lastFillExtent(0), m_exiting(false) { m_reader = reader; if (m_reader) setObjectName(m_reader->getTitle()); if (objectName() == "") setObjectName(QFileInfo(m_path).fileName()); fillCache(); } WaveFileModel::~WaveFileModel() { m_exiting = true; if (m_fillThread) m_fillThread->wait(); if (m_myReader) delete m_reader; m_reader = 0; } bool WaveFileModel::isOK() const { return m_reader && m_reader->isOK(); } bool WaveFileModel::isReady(int *completion) const { bool ready = (isOK() && (m_fillThread == 0)); double c = double(m_lastFillExtent) / double(getEndFrame() - getStartFrame()); static int prevCompletion = 0; if (completion) { *completion = int(c * 100.0 + 0.01); if (m_reader) { int decodeCompletion = m_reader->getDecodeCompletion(); if (decodeCompletion < 90) *completion = decodeCompletion; else *completion = min(*completion, decodeCompletion); } if (*completion != 0 && *completion != 100 && prevCompletion != 0 && prevCompletion > *completion) { // just to avoid completion going backwards *completion = prevCompletion; } prevCompletion = *completion; } #ifdef DEBUG_WAVE_FILE_MODEL SVDEBUG << "WaveFileModel::isReady(): ready = " << ready << ", completion = " << (completion ? *completion : -1) << endl; #endif return ready; } sv_frame_t WaveFileModel::getFrameCount() const { if (!m_reader) return 0; return m_reader->getFrameCount(); } int WaveFileModel::getChannelCount() const { if (!m_reader) return 0; return m_reader->getChannelCount(); } sv_samplerate_t WaveFileModel::getSampleRate() const { if (!m_reader) return 0; return m_reader->getSampleRate(); } sv_samplerate_t WaveFileModel::getNativeRate() const { if (!m_reader) return 0; sv_samplerate_t rate = m_reader->getNativeRate(); if (rate == 0) rate = getSampleRate(); return rate; } QString WaveFileModel::getTitle() const { QString title; if (m_reader) title = m_reader->getTitle(); if (title == "") title = objectName(); return title; } QString WaveFileModel::getMaker() const { if (m_reader) return m_reader->getMaker(); return ""; } QString WaveFileModel::getLocation() const { if (m_reader) return m_reader->getLocation(); return ""; } QString WaveFileModel::getLocalFilename() const { if (m_reader) return m_reader->getLocalFilename(); return ""; } vector<float> WaveFileModel::getData(int channel, sv_frame_t start, sv_frame_t count) const { // Read directly from the file. This is used for e.g. audio // playback or input to transforms. #ifdef DEBUG_WAVE_FILE_MODEL cout << "WaveFileModel::getData[" << this << "]: " << channel << ", " << start << ", " << count << ", " << buffer << endl; #endif int channels = getChannelCount(); if (channel >= channels) { cerr << "ERROR: WaveFileModel::getData: channel (" << channel << ") >= channel count (" << channels << ")" << endl; return {}; } if (!m_reader || !m_reader->isOK() || count == 0) { return {}; } if (start >= m_startFrame) { start -= m_startFrame; } else { if (count <= m_startFrame - start) { return {}; } else { count -= (m_startFrame - start); start = 0; } } vector<float> interleaved = m_reader->getInterleavedFrames(start, count); if (channels == 1) return interleaved; sv_frame_t obtained = interleaved.size() / channels; vector<float> result(obtained, 0.f); if (channel != -1) { // get a single channel for (int i = 0; i < obtained; ++i) { result[i] = interleaved[i * channels + channel]; } } else { // channel == -1, mix down all channels for (int c = 0; c < channels; ++c) { for (int i = 0; i < obtained; ++i) { result[i] += interleaved[i * channels + c]; } } } return result; } vector<vector<float>> WaveFileModel::getMultiChannelData(int fromchannel, int tochannel, sv_frame_t start, sv_frame_t count) const { // Read directly from the file. This is used for e.g. audio // playback or input to transforms. #ifdef DEBUG_WAVE_FILE_MODEL cout << "WaveFileModel::getData[" << this << "]: " << fromchannel << "," << tochannel << ", " << start << ", " << count << ", " << buffer << endl; #endif int channels = getChannelCount(); if (fromchannel > tochannel) { cerr << "ERROR: WaveFileModel::getData: fromchannel (" << fromchannel << ") > tochannel (" << tochannel << ")" << endl; return {}; } if (tochannel >= channels) { cerr << "ERROR: WaveFileModel::getData: tochannel (" << tochannel << ") >= channel count (" << channels << ")" << endl; return {}; } if (!m_reader || !m_reader->isOK() || count == 0) { return {}; } int reqchannels = (tochannel - fromchannel) + 1; if (start >= m_startFrame) { start -= m_startFrame; } else { if (count <= m_startFrame - start) { return {}; } else { count -= (m_startFrame - start); start = 0; } } vector<float> interleaved = m_reader->getInterleavedFrames(start, count); if (channels == 1) return { interleaved }; sv_frame_t obtained = interleaved.size() / channels; vector<vector<float>> result(reqchannels, vector<float>(obtained, 0.f)); for (int c = fromchannel; c <= tochannel; ++c) { int destc = c - fromchannel; for (int i = 0; i < obtained; ++i) { result[destc][i] = interleaved[i * channels + c]; } } return result; } int WaveFileModel::getSummaryBlockSize(int desired) const { int cacheType = 0; int power = m_zoomConstraint.getMinCachePower(); int roundedBlockSize = m_zoomConstraint.getNearestBlockSize (desired, cacheType, power, ZoomConstraint::RoundDown); if (cacheType != 0 && cacheType != 1) { // We will be reading directly from file, so can satisfy any // blocksize requirement return desired; } else { return roundedBlockSize; } } void WaveFileModel::getSummaries(int channel, sv_frame_t start, sv_frame_t count, RangeBlock &ranges, int &blockSize) const { ranges.clear(); if (!isOK()) return; ranges.reserve((count / blockSize) + 1); if (start > m_startFrame) start -= m_startFrame; else if (count <= m_startFrame - start) return; else { count -= (m_startFrame - start); start = 0; } int cacheType = 0; int power = m_zoomConstraint.getMinCachePower(); int roundedBlockSize = m_zoomConstraint.getNearestBlockSize (blockSize, cacheType, power, ZoomConstraint::RoundDown); int channels = getChannelCount(); if (cacheType != 0 && cacheType != 1) { // We need to read directly from the file. We haven't got // this cached. Hope the requested area is small. This is // not optimal -- we'll end up reading the same frames twice // for stereo files, in two separate calls to this method. // We could fairly trivially handle this for most cases that // matter by putting a single cache in getInterleavedFrames // for short queries. m_directReadMutex.lock(); if (m_lastDirectReadStart != start || m_lastDirectReadCount != count || m_directRead.empty()) { m_directRead = m_reader->getInterleavedFrames(start, count); m_lastDirectReadStart = start; m_lastDirectReadCount = count; } float max = 0.0, min = 0.0, total = 0.0; sv_frame_t i = 0, got = 0; while (i < count) { sv_frame_t index = i * channels + channel; if (index >= (sv_frame_t)m_directRead.size()) break; float sample = m_directRead[index]; if (sample > max || got == 0) max = sample; if (sample < min || got == 0) min = sample; total += fabsf(sample); ++i; ++got; if (got == blockSize) { ranges.push_back(Range(min, max, total / float(got))); min = max = total = 0.0f; got = 0; } } m_directReadMutex.unlock(); if (got > 0) { ranges.push_back(Range(min, max, total / float(got))); } return; } else { QMutexLocker locker(&m_mutex); const RangeBlock &cache = m_cache[cacheType]; blockSize = roundedBlockSize; sv_frame_t cacheBlock, div; if (cacheType == 0) { cacheBlock = (1 << m_zoomConstraint.getMinCachePower()); div = (1 << power) / cacheBlock; } else { cacheBlock = sv_frame_t((1 << m_zoomConstraint.getMinCachePower()) * sqrt(2.) + 0.01); div = sv_frame_t(((1 << power) * sqrt(2.) + 0.01) / double(cacheBlock)); } sv_frame_t startIndex = start / cacheBlock; sv_frame_t endIndex = (start + count) / cacheBlock; float max = 0.0, min = 0.0, total = 0.0; sv_frame_t i = 0, got = 0; #ifdef DEBUG_WAVE_FILE_MODEL cerr << "blockSize is " << blockSize << ", cacheBlock " << cacheBlock << ", start " << start << ", count " << count << " (frame count " << getFrameCount() << "), power is " << power << ", div is " << div << ", startIndex " << startIndex << ", endIndex " << endIndex << endl; #endif for (i = 0; i <= endIndex - startIndex; ) { sv_frame_t index = (i + startIndex) * channels + channel; if (index >= (sv_frame_t)cache.size()) break; const Range &range = cache[index]; if (range.max() > max || got == 0) max = range.max(); if (range.min() < min || got == 0) min = range.min(); total += range.absmean(); ++i; ++got; if (got == div) { ranges.push_back(Range(min, max, total / float(got))); min = max = total = 0.0f; got = 0; } } if (got > 0) { ranges.push_back(Range(min, max, total / float(got))); } } #ifdef DEBUG_WAVE_FILE_MODEL SVDEBUG << "returning " << ranges.size() << " ranges" << endl; #endif return; } WaveFileModel::Range WaveFileModel::getSummary(int channel, sv_frame_t start, sv_frame_t count) const { Range range; if (!isOK()) return range; if (start > m_startFrame) start -= m_startFrame; else if (count <= m_startFrame - start) return range; else { count -= (m_startFrame - start); start = 0; } int blockSize; for (blockSize = 1; blockSize <= count; blockSize *= 2); if (blockSize > 1) blockSize /= 2; bool first = false; sv_frame_t blockStart = (start / blockSize) * blockSize; sv_frame_t blockEnd = ((start + count) / blockSize) * blockSize; if (blockStart < start) blockStart += blockSize; if (blockEnd > blockStart) { RangeBlock ranges; getSummaries(channel, blockStart, blockEnd - blockStart, ranges, blockSize); for (int i = 0; i < (int)ranges.size(); ++i) { if (first || ranges[i].min() < range.min()) range.setMin(ranges[i].min()); if (first || ranges[i].max() > range.max()) range.setMax(ranges[i].max()); if (first || ranges[i].absmean() < range.absmean()) range.setAbsmean(ranges[i].absmean()); first = false; } } if (blockStart > start) { Range startRange = getSummary(channel, start, blockStart - start); range.setMin(min(range.min(), startRange.min())); range.setMax(max(range.max(), startRange.max())); range.setAbsmean(min(range.absmean(), startRange.absmean())); } if (blockEnd < start + count) { Range endRange = getSummary(channel, blockEnd, start + count - blockEnd); range.setMin(min(range.min(), endRange.min())); range.setMax(max(range.max(), endRange.max())); range.setAbsmean(min(range.absmean(), endRange.absmean())); } return range; } void WaveFileModel::fillCache() { m_mutex.lock(); m_updateTimer = new QTimer(this); connect(m_updateTimer, SIGNAL(timeout()), this, SLOT(fillTimerTimedOut())); m_updateTimer->start(100); m_fillThread = new RangeCacheFillThread(*this); connect(m_fillThread, SIGNAL(finished()), this, SLOT(cacheFilled())); m_mutex.unlock(); m_fillThread->start(); #ifdef DEBUG_WAVE_FILE_MODEL SVDEBUG << "WaveFileModel::fillCache: started fill thread" << endl; #endif } void WaveFileModel::fillTimerTimedOut() { if (m_fillThread) { sv_frame_t fillExtent = m_fillThread->getFillExtent(); #ifdef DEBUG_WAVE_FILE_MODEL SVDEBUG << "WaveFileModel::fillTimerTimedOut: extent = " << fillExtent << endl; #endif if (fillExtent > m_lastFillExtent) { emit modelChangedWithin(m_lastFillExtent, fillExtent); m_lastFillExtent = fillExtent; } } else { #ifdef DEBUG_WAVE_FILE_MODEL SVDEBUG << "WaveFileModel::fillTimerTimedOut: no thread" << endl; #endif emit modelChanged(); } } void WaveFileModel::cacheFilled() { m_mutex.lock(); delete m_fillThread; m_fillThread = 0; delete m_updateTimer; m_updateTimer = 0; m_mutex.unlock(); if (getEndFrame() > m_lastFillExtent) { emit modelChangedWithin(m_lastFillExtent, getEndFrame()); } emit modelChanged(); emit ready(); #ifdef DEBUG_WAVE_FILE_MODEL SVDEBUG << "WaveFileModel::cacheFilled" << endl; #endif } void WaveFileModel::RangeCacheFillThread::run() { int cacheBlockSize[2]; cacheBlockSize[0] = (1 << m_model.m_zoomConstraint.getMinCachePower()); cacheBlockSize[1] = (int((1 << m_model.m_zoomConstraint.getMinCachePower()) * sqrt(2.) + 0.01)); sv_frame_t frame = 0; const sv_frame_t readBlockSize = 16384; vector<float> block; if (!m_model.isOK()) return; int channels = m_model.getChannelCount(); bool updating = m_model.m_reader->isUpdating(); if (updating) { while (channels == 0 && !m_model.m_exiting) { // SVDEBUG << "WaveFileModel::fill: Waiting for channels..." << endl; sleep(1); channels = m_model.getChannelCount(); } } Range *range = new Range[2 * channels]; float *means = new float[2 * channels]; int count[2]; count[0] = count[1] = 0; for (int i = 0; i < 2 * channels; ++i) { means[i] = 0.f; } bool first = true; while (first || updating) { updating = m_model.m_reader->isUpdating(); m_frameCount = m_model.getFrameCount(); // SVDEBUG << "WaveFileModel::fill: frame = " << frame << ", count = " << m_frameCount << endl; while (frame < m_frameCount) { // SVDEBUG << "WaveFileModel::fill inner loop: frame = " << frame << ", count = " << m_frameCount << ", blocksize " << readBlockSize << endl; if (updating && (frame + readBlockSize > m_frameCount)) break; block = m_model.m_reader->getInterleavedFrames(frame, readBlockSize); // cerr << "block is " << block.size() << endl; for (sv_frame_t i = 0; i < readBlockSize; ++i) { if (channels * i + channels > (int)block.size()) break; for (int ch = 0; ch < channels; ++ch) { sv_frame_t index = channels * i + ch; float sample = block[index]; for (int cacheType = 0; cacheType < 2; ++cacheType) { // cache type sv_frame_t rangeIndex = ch * 2 + cacheType; range[rangeIndex].sample(sample); means[rangeIndex] += fabsf(sample); } } //!!! this looks like a ludicrous way to do synchronisation QMutexLocker locker(&m_model.m_mutex); for (int cacheType = 0; cacheType < 2; ++cacheType) { if (++count[cacheType] == cacheBlockSize[cacheType]) { for (int ch = 0; ch < int(channels); ++ch) { int rangeIndex = ch * 2 + cacheType; means[rangeIndex] = means[rangeIndex] / float(count[cacheType]); range[rangeIndex].setAbsmean(means[rangeIndex]); m_model.m_cache[cacheType].push_back(range[rangeIndex]); range[rangeIndex] = Range(); means[rangeIndex] = 0.f; } count[cacheType] = 0; } } ++frame; } if (m_model.m_exiting) break; m_fillExtent = frame; } // cerr << "WaveFileModel: inner loop ended" << endl; first = false; if (m_model.m_exiting) break; if (updating) { // cerr << "sleeping..." << endl; sleep(1); } } if (!m_model.m_exiting) { QMutexLocker locker(&m_model.m_mutex); for (int cacheType = 0; cacheType < 2; ++cacheType) { if (count[cacheType] > 0) { for (int ch = 0; ch < int(channels); ++ch) { int rangeIndex = ch * 2 + cacheType; means[rangeIndex] = means[rangeIndex] / float(count[cacheType]); range[rangeIndex].setAbsmean(means[rangeIndex]); m_model.m_cache[cacheType].push_back(range[rangeIndex]); range[rangeIndex] = Range(); means[rangeIndex] = 0.f; } count[cacheType] = 0; } const Range &rr = *m_model.m_cache[cacheType].begin(); MUNLOCK(&rr, m_model.m_cache[cacheType].capacity() * sizeof(Range)); } } delete[] means; delete[] range; m_fillExtent = m_frameCount; #ifdef DEBUG_WAVE_FILE_MODEL for (int cacheType = 0; cacheType < 2; ++cacheType) { cerr << "Cache type " << cacheType << " now contains " << m_model.m_cache[cacheType].size() << " ranges" << endl; } #endif } void WaveFileModel::toXml(QTextStream &out, QString indent, QString extraAttributes) const { Model::toXml(out, indent, QString("type=\"wavefile\" file=\"%1\" %2") .arg(encodeEntities(m_path)).arg(extraAttributes)); }