Mercurial > hg > svcore
view data/fileio/AudioFileReaderFactory.cpp @ 330:6e9dcf09b7fe
* Another incremental update (this class not yet used)
author | Chris Cannam |
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date | Tue, 06 Nov 2007 17:15:00 +0000 |
parents | 1d656dcda8ef |
children | e6d11871e4c9 |
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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 "AudioFileReaderFactory.h" #include "WavFileReader.h" #include "ResamplingWavFileReader.h" #include "OggVorbisFileReader.h" #include "MP3FileReader.h" #include "QuickTimeFileReader.h" #include <QString> #include <QFileInfo> #include <iostream> QString AudioFileReaderFactory::getKnownExtensions() { std::set<QString> extensions; WavFileReader::getSupportedExtensions(extensions); #ifdef HAVE_MAD MP3FileReader::getSupportedExtensions(extensions); #endif #ifdef HAVE_OGGZ #ifdef HAVE_FISHSOUND OggVorbisFileReader::getSupportedExtensions(extensions); #endif #endif #ifdef HAVE_QUICKTIME QuickTimeFileReader::getSupportedExtensions(extensions); #endif QString rv; for (std::set<QString>::const_iterator i = extensions.begin(); i != extensions.end(); ++i) { if (i != extensions.begin()) rv += " "; rv += "*." + *i; } return rv; } AudioFileReader * AudioFileReaderFactory::createReader(FileSource source, size_t targetRate) { return create(source, targetRate, false); } AudioFileReader * AudioFileReaderFactory::createThreadingReader(FileSource source, size_t targetRate) { return create(source, targetRate, true); } AudioFileReader * AudioFileReaderFactory::create(FileSource source, size_t targetRate, bool threading) { QString err; // std::cerr << "AudioFileReaderFactory::createReader(\"" << source.getLocation().toStdString() << "\"): Requested rate: " << targetRate << std::endl; if (!source.isOK() || !source.isAvailable()) { std::cerr << "AudioFileReaderFactory::createReader(\"" << source.getLocation().toStdString() << "\": Source unavailable" << std::endl; return 0; } AudioFileReader *reader = 0; // Try to construct a preferred reader based on the extension or // MIME type. if (WavFileReader::supports(source)) { reader = new WavFileReader(source); if (targetRate != 0 && reader->isOK() && reader->getSampleRate() != targetRate) { std::cerr << "AudioFileReaderFactory::createReader: WAV file rate: " << reader->getSampleRate() << ", creating resampling reader" << std::endl; delete reader; reader = new ResamplingWavFileReader (source, threading ? ResamplingWavFileReader::ResampleThreaded : ResamplingWavFileReader::ResampleAtOnce, ResamplingWavFileReader::CacheInTemporaryFile, targetRate); } } #ifdef HAVE_OGGZ #ifdef HAVE_FISHSOUND if (!reader) { if (OggVorbisFileReader::supports(source)) { reader = new OggVorbisFileReader (source, threading ? OggVorbisFileReader::DecodeThreaded : OggVorbisFileReader::DecodeAtOnce, OggVorbisFileReader::CacheInTemporaryFile, targetRate); } } #endif #endif #ifdef HAVE_MAD if (!reader) { if (MP3FileReader::supports(source)) { reader = new MP3FileReader (source, threading ? MP3FileReader::DecodeThreaded : MP3FileReader::DecodeAtOnce, MP3FileReader::CacheInTemporaryFile, targetRate); } } #endif #ifdef HAVE_QUICKTIME if (!reader) { if (QuickTimeFileReader::supports(source)) { reader = new QuickTimeFileReader (source, threading ? QuickTimeFileReader::DecodeThreaded : QuickTimeFileReader::DecodeAtOnce, QuickTimeFileReader::CacheInTemporaryFile, targetRate); } } #endif if (reader) { if (reader->isOK()) { // std::cerr << "AudioFileReaderFactory: Reader is OK" << std::endl; return reader; } std::cerr << "AudioFileReaderFactory: Preferred reader for " << "url \"" << source.getLocation().toStdString() << "\" (content type \"" << source.getContentType().toStdString() << "\") failed"; if (reader->getError() != "") { std::cerr << ": \"" << reader->getError().toStdString() << "\""; } std::cerr << std::endl; delete reader; reader = 0; } std::cerr << "AudioFileReaderFactory: No reader" << std::endl; return reader; }