Mercurial > hg > svcore
view data/model/AlignmentModel.cpp @ 1008:d9e0e59a1581
When using an aggregate model to pass data to a transform, zero-pad the shorter input to the duration of the longer rather than truncating the longer. (This is better behaviour for e.g. MATCH, and in any case the code was previously truncating incorrectly and ending up with garbage data at the end.)
author | Chris Cannam |
---|---|
date | Fri, 14 Nov 2014 13:51:33 +0000 |
parents | cd42620e3f40 |
children | 13f53ecc8bb5 |
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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 2007 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 "AlignmentModel.h" #include "SparseTimeValueModel.h" //#define DEBUG_ALIGNMENT_MODEL 1 AlignmentModel::AlignmentModel(Model *reference, Model *aligned, Model *inputModel, SparseTimeValueModel *path) : m_reference(reference), m_aligned(aligned), m_inputModel(inputModel), m_rawPath(path), m_path(0), m_reversePath(0), m_pathBegun(false), m_pathComplete(false) { if (m_rawPath) { connect(m_rawPath, SIGNAL(modelChanged()), this, SLOT(pathChanged())); connect(m_rawPath, SIGNAL(modelChangedWithin(int, int)), this, SLOT(pathChangedWithin(int, int))); connect(m_rawPath, SIGNAL(completionChanged()), this, SLOT(pathCompletionChanged())); constructPath(); constructReversePath(); } if (m_rawPath && m_rawPath->isReady()) { pathCompletionChanged(); } } AlignmentModel::~AlignmentModel() { if (m_inputModel) m_inputModel->aboutToDelete(); delete m_inputModel; if (m_rawPath) m_rawPath->aboutToDelete(); delete m_rawPath; if (m_path) m_path->aboutToDelete(); delete m_path; if (m_reversePath) m_reversePath->aboutToDelete(); delete m_reversePath; } bool AlignmentModel::isOK() const { if (m_rawPath) return m_rawPath->isOK(); else return true; } int AlignmentModel::getStartFrame() const { int a = m_reference->getStartFrame(); int b = m_aligned->getStartFrame(); return std::min(a, b); } int AlignmentModel::getEndFrame() const { int a = m_reference->getEndFrame(); int b = m_aligned->getEndFrame(); return std::max(a, b); } int AlignmentModel::getSampleRate() const { return m_reference->getSampleRate(); } Model * AlignmentModel::clone() const { return new AlignmentModel (m_reference, m_aligned, m_inputModel ? m_inputModel->clone() : 0, m_rawPath ? static_cast<SparseTimeValueModel *>(m_rawPath->clone()) : 0); } bool AlignmentModel::isReady(int *completion) const { if (!m_pathBegun && m_rawPath) { if (completion) *completion = 0; return false; } if (m_pathComplete || !m_rawPath) { if (completion) *completion = 100; return true; } return m_rawPath->isReady(completion); } const ZoomConstraint * AlignmentModel::getZoomConstraint() const { return 0; } const Model * AlignmentModel::getReferenceModel() const { return m_reference; } const Model * AlignmentModel::getAlignedModel() const { return m_aligned; } int AlignmentModel::toReference(int frame) const { #ifdef DEBUG_ALIGNMENT_MODEL SVDEBUG << "AlignmentModel::toReference(" << frame << ")" << endl; #endif if (!m_path) { if (!m_rawPath) return frame; constructPath(); } return align(m_path, frame); } int AlignmentModel::fromReference(int frame) const { #ifdef DEBUG_ALIGNMENT_MODEL SVDEBUG << "AlignmentModel::fromReference(" << frame << ")" << endl; #endif if (!m_reversePath) { if (!m_rawPath) return frame; constructReversePath(); } return align(m_reversePath, frame); } void AlignmentModel::pathChanged() { if (m_pathComplete) { cerr << "AlignmentModel: deleting raw path model" << endl; if (m_rawPath) m_rawPath->aboutToDelete(); delete m_rawPath; m_rawPath = 0; } } void AlignmentModel::pathChangedWithin(int, int) { if (!m_pathComplete) return; constructPath(); constructReversePath(); } void AlignmentModel::pathCompletionChanged() { if (!m_rawPath) return; m_pathBegun = true; if (!m_pathComplete) { int completion = 0; m_rawPath->isReady(&completion); #ifdef DEBUG_ALIGNMENT_MODEL SVDEBUG << "AlignmentModel::pathCompletionChanged: completion = " << completion << endl; #endif m_pathComplete = (completion == 100); if (m_pathComplete) { constructPath(); constructReversePath(); if (m_inputModel) m_inputModel->aboutToDelete(); delete m_inputModel; m_inputModel = 0; } } emit completionChanged(); } void AlignmentModel::constructPath() const { if (!m_path) { if (!m_rawPath) { cerr << "ERROR: AlignmentModel::constructPath: " << "No raw path available" << endl; return; } m_path = new PathModel (m_rawPath->getSampleRate(), m_rawPath->getResolution(), false); } else { if (!m_rawPath) return; } m_path->clear(); SparseTimeValueModel::PointList points = m_rawPath->getPoints(); for (SparseTimeValueModel::PointList::const_iterator i = points.begin(); i != points.end(); ++i) { long frame = i->frame; float value = i->value; long rframe = lrintf(value * m_aligned->getSampleRate()); m_path->addPoint(PathPoint(frame, rframe)); } #ifdef DEBUG_ALIGNMENT_MODEL SVDEBUG << "AlignmentModel::constructPath: " << m_path->getPointCount() << " points, at least " << (2 * m_path->getPointCount() * (3 * sizeof(void *) + sizeof(int) + sizeof(PathPoint))) << " bytes" << endl; #endif } void AlignmentModel::constructReversePath() const { if (!m_reversePath) { if (!m_path) { cerr << "ERROR: AlignmentModel::constructReversePath: " << "No forward path available" << endl; return; } m_reversePath = new PathModel (m_path->getSampleRate(), m_path->getResolution(), false); } else { if (!m_path) return; } m_reversePath->clear(); PathModel::PointList points = m_path->getPoints(); for (PathModel::PointList::const_iterator i = points.begin(); i != points.end(); ++i) { long frame = i->frame; long rframe = i->mapframe; m_reversePath->addPoint(PathPoint(rframe, frame)); } #ifdef DEBUG_ALIGNMENT_MODEL SVDEBUG << "AlignmentModel::constructReversePath: " << m_reversePath->getPointCount() << " points, at least " << (2 * m_reversePath->getPointCount() * (3 * sizeof(void *) + sizeof(int) + sizeof(PathPoint))) << " bytes" << endl; #endif } int AlignmentModel::align(PathModel *path, int frame) const { if (!path) return frame; // The path consists of a series of points, each with frame equal // to the frame on the source model and mapframe equal to the // frame on the target model. Both should be monotonically // increasing. const PathModel::PointList &points = path->getPoints(); if (points.empty()) { #ifdef DEBUG_ALIGNMENT_MODEL SVDEBUG << "AlignmentModel::align: No points" << endl; #endif return frame; } #ifdef DEBUG_ALIGNMENT_MODEL SVDEBUG << "AlignmentModel::align: frame " << frame << " requested" << endl; #endif PathModel::Point point(frame); PathModel::PointList::const_iterator i = points.lower_bound(point); if (i == points.end()) { #ifdef DEBUG_ALIGNMENT_MODEL cerr << "Note: i == points.end()" << endl; #endif --i; } while (i != points.begin() && i->frame > long(frame)) --i; long foundFrame = i->frame; long foundMapFrame = i->mapframe; long followingFrame = foundFrame; long followingMapFrame = foundMapFrame; if (++i != points.end()) { #ifdef DEBUG_ALIGNMENT_MODEL cerr << "another point available" << endl; #endif followingFrame = i->frame; followingMapFrame = i->mapframe; } else { #ifdef DEBUG_ALIGNMENT_MODEL cerr << "no other point available" << endl; #endif } if (foundMapFrame < 0) return 0; int resultFrame = foundMapFrame; if (followingFrame != foundFrame && long(frame) > foundFrame) { float interp = float(frame - foundFrame) / float(followingFrame - foundFrame); resultFrame += lrintf((followingMapFrame - foundMapFrame) * interp); } #ifdef DEBUG_ALIGNMENT_MODEL SVDEBUG << "AlignmentModel::align: resultFrame = " << resultFrame << endl; #endif return resultFrame; } void AlignmentModel::setPath(PathModel *path) { if (m_path) m_path->aboutToDelete(); delete m_path; m_path = path; #ifdef DEBUG_ALIGNMENT_MODEL SVDEBUG << "AlignmentModel::setPath: path = " << m_path << endl; #endif constructReversePath(); #ifdef DEBUG_ALIGNMENT_MODEL SVDEBUG << "AlignmentModel::setPath: after construction path = " << m_path << ", rpath = " << m_reversePath << endl; #endif } void AlignmentModel::toXml(QTextStream &stream, QString indent, QString extraAttributes) const { if (!m_path) { SVDEBUG << "AlignmentModel::toXml: no path" << endl; return; } m_path->toXml(stream, indent, ""); Model::toXml(stream, indent, QString("type=\"alignment\" reference=\"%1\" aligned=\"%2\" path=\"%3\" %4") .arg(getObjectExportId(m_reference)) .arg(getObjectExportId(m_aligned)) .arg(getObjectExportId(m_path)) .arg(extraAttributes)); }