From 783f137e371a8487a3f9256f4e0b36b9be465c9c Mon Sep 17 00:00:00 2001 From: Bent Bisballe Nyeng Date: Mon, 8 Sep 2014 20:55:30 +0200 Subject: Moved dgedit to it's own project at http://git.drumgizmo.org/dgedit.git --- dgedit/audioextractor.cc | 283 ----------------------------------------------- 1 file changed, 283 deletions(-) delete mode 100644 dgedit/audioextractor.cc (limited to 'dgedit/audioextractor.cc') diff --git a/dgedit/audioextractor.cc b/dgedit/audioextractor.cc deleted file mode 100644 index 71e0b2a..0000000 --- a/dgedit/audioextractor.cc +++ /dev/null @@ -1,283 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/*************************************************************************** - * audioextractor.cc - * - * Sat Nov 21 13:09:35 CET 2009 - * Copyright 2009 Bent Bisballe Nyeng - * deva@aasimon.org - ****************************************************************************/ - -/* - * This file is part of DrumGizmo. - * - * DrumGizmo 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. - * - * DrumGizmo is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with DrumGizmo; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ -#include "audioextractor.h" - -#include -#include -#include -#include - -#include - -#define INSTRUMENT_VERSION "2.0" - -typedef struct { - SNDFILE *fh; - float *data; -} audiodata_t; - -AudioExtractor::AudioExtractor(Selections &s, QObject *parent) - : QObject(parent), selections(s) -{ -} - -void AudioExtractor::exportSelections() -{ - emit setMaximumProgress(selections.ids().size() + 1/* for xml writing*/); - int progress = 0; - emit progressUpdate(progress++); - qApp->processEvents(); - - // Open all input audio files: - audiodata_t audiodata[audiofiles.size()]; - - int idx = 0; - AudioFileList::iterator j = audiofiles.begin(); - while(j != audiofiles.end()) { - QString file = j->first; - - SF_INFO sf_info; - audiodata[idx].fh = sf_open(file.toStdString().c_str(), SFM_READ, &sf_info); - if(!audiodata[idx].fh) { - printf("Load error '%s'\n", file.toStdString().c_str()); - return; - } - - audiodata[idx].data = NULL; - - j++; - idx++; - } - - idx = 1; - QVector sels = selections.ids(); - - // Sort selections by velocity - for(int v1 = 0; v1 < sels.size(); v1++) { - for(int v2 = 0; v2 < sels.size(); v2++) { - - Selection sel1 = selections.get(sels[v1]); - Selection sel2 = selections.get(sels[v2]); - - if(sel1.energy < sel2.energy) { - sel_id_t vtmp = sels[v1]; - sels[v1] = sels[v2]; - sels[v2] = vtmp; - } - } - } - - // Iterate and write audio files - QVector::iterator si = sels.begin(); - while(si != sels.end()) { - Selection sel = selections.get(*si); - size_t offset = sel.from; - size_t size = sel.to - sel.from; - size_t fadein = sel.fadein; - size_t fadeout = sel.fadeout; - - - // Read all input audio file chunks: - for(int i = 0; i < audiofiles.size(); i++) { - - // Clear out old buffer (if one exists) - if(audiodata[i].data) { - delete audiodata[i].data; - audiodata[i].data = NULL; - } - - SNDFILE *fh = audiodata[i].fh; - - sf_seek(fh, offset, SEEK_SET); - - float *data = new float[size]; - sf_read_float(fh, data, size); - - // Apply linear fadein - for(size_t fi = 0; fi < fadein; fi++) { - float val = ((float)fi / (float)fadein); - if(fi < size) data[fi] *= val; - } - - // Apply fadeout - for(size_t fo = 0; fo < fadeout; fo++) { - float val = 1.0 - ((float)fo / (float)fadeout); - if( (((size - fadeout) + fo) < size) && - (((size - fadeout) + fo) >= 0) ) { - data[(size - fadeout) + fo] *= val; - } - } - - audiodata[i].data = data; - } - - // Create output path: - QString path = exportpath + "/" + prefix + "/samples"; - QDir d; - d.mkpath(path); - - // Write all sample chunks to single output file: - QString file = path + "/" + QString::number(idx) + "-" + prefix + ".wav"; - - SF_INFO sf_info; - sf_info.format = SF_FORMAT_WAV | SF_FORMAT_FLOAT; - sf_info.samplerate = 44100; - sf_info.channels = audiofiles.size(); - - SNDFILE *ofh = sf_open(file.toStdString().c_str(), SFM_WRITE, &sf_info); - if(!ofh) { - printf("Open for write error...\n"); - return; - } - - for(size_t ob = 0; ob < size; ob++) { - float obuf[audiofiles.size()]; - for(int ai = 0; ai < audiofiles.size(); ai++) { - obuf[ai] = audiodata[ai].data[ob]; - } - sf_write_float(ofh, obuf, audiofiles.size()); - } - sf_close(ofh); - - idx++; - si++; - - emit progressUpdate(progress++); - qApp->processEvents(); - } - - // Close all input audio files: - for(int i = 0; i < audiofiles.size(); i++) { - if(audiodata[i].data) { - delete audiodata[i].data; - audiodata[i].data = NULL; - } - - sf_close(audiodata[i].fh); - } - - QDomDocument doc; - QDomProcessingInstruction header = - doc.createProcessingInstruction("xml", "version='1.0' encoding='UTF-8'"); - doc.appendChild(header); - - QDomElement instrument = doc.createElement("instrument"); - instrument.setAttribute("version", INSTRUMENT_VERSION); - instrument.setAttribute("name", prefix); - doc.appendChild(instrument); - - QDomElement samples = doc.createElement("samples"); - instrument.appendChild(samples); - - { - // Do the adding to the xml file one sample at the time. - int index = 0; - QVector::iterator si = sels.begin(); - while(si != sels.end()) { - index++; - - Selection i = selections.get(*si); - i.name = prefix + "-" + QString::number(index); - - QDomElement sample = doc.createElement("sample"); - sample.setAttribute("name", i.name); - sample.setAttribute("power", QString::number(i.energy)); - samples.appendChild(sample); - - selections.update(*si, i); - - int channelnum = 1; // Filechannel numbers are 1-based. - AudioFileList::iterator j = audiofiles.begin(); - while(j != audiofiles.end()) { - - QString file = j->first; - QString name = j->second; - - QDomElement audiofile = doc.createElement("audiofile"); - audiofile.setAttribute("file", "samples/" + - QString::number(index) + "-" + prefix + ".wav"); - audiofile.setAttribute("channel", name); - audiofile.setAttribute("filechannel", QString::number(channelnum)); - sample.appendChild(audiofile); - channelnum++; - j++; - } - - si++; - } - } - - QFile xmlfile(exportpath + "/" + prefix + "/" + prefix + ".xml"); - xmlfile.open(QIODevice::WriteOnly); - xmlfile.write(doc.toByteArray()); - xmlfile.close(); - - emit progressUpdate(progress++); - qApp->processEvents(); -} - -void AudioExtractor::addFile(QString file, QString name) -{ - QPair pair; - pair.first = file; - pair.second = name; - audiofiles.push_back(pair); -} - -void AudioExtractor::removeFile(QString file, QString name) -{ - AudioFileList::iterator j = audiofiles.begin(); - while(j != audiofiles.end()) { - if(file == j->first/* && name == j->second*/) { - audiofiles.erase(j); - return; - } - j++; - } -} - -void AudioExtractor::setOutputPrefix(const QString &p) -{ - prefix = p; -} - -void AudioExtractor::setExportPath(const QString &path) -{ - exportpath = path; -} - -void AudioExtractor::changeName(QString file, QString name) -{ - AudioFileList::iterator j = audiofiles.begin(); - while(j != audiofiles.end()) { - if(file == j->first) { - j->second = name; - return; - } - j++; - } -} -- cgit v1.2.3