Mercurial > hg > svcore
view data/fileio/AudioFileReaderFactory.cpp @ 758:babed5be1ae7
Better general approach
author | Chris Cannam |
---|---|
date | Fri, 08 Mar 2013 20:05:49 +0000 |
parents | 02390a4c2abe |
children | f0558e69a074 |
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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 "CoreAudioFileReader.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 #ifdef HAVE_COREAUDIO CoreAudioFileReader::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, ProgressReporter *reporter) { return create(source, targetRate, false, reporter); } AudioFileReader * AudioFileReaderFactory::createThreadingReader(FileSource source, size_t targetRate, ProgressReporter *reporter) { return create(source, targetRate, true, reporter); } AudioFileReader * AudioFileReaderFactory::create(FileSource source, size_t targetRate, bool threading, ProgressReporter *reporter) { QString err; SVDEBUG << "AudioFileReaderFactory::createReader(\"" << source.getLocation() << "\"): Requested rate: " << targetRate << endl; if (!source.isOK()) { std::cerr << "AudioFileReaderFactory::createReader(\"" << source.getLocation() << "\": Failed to retrieve source (transmission error?): " << source.getErrorString() << std::endl; return 0; } if (!source.isAvailable()) { SVDEBUG << "AudioFileReaderFactory::createReader(\"" << source.getLocation() << "\": Source not found" << 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) { SVDEBUG << "AudioFileReaderFactory::createReader: WAV file rate: " << reader->getSampleRate() << ", creating resampling reader" << endl; delete reader; reader = new ResamplingWavFileReader (source, threading ? ResamplingWavFileReader::ResampleThreaded : ResamplingWavFileReader::ResampleAtOnce, ResamplingWavFileReader::CacheInTemporaryFile, targetRate, reporter); if (!reader->isOK()) { delete reader; reader = 0; } } } #ifdef HAVE_OGGZ #ifdef HAVE_FISHSOUND if (!reader) { if (OggVorbisFileReader::supports(source)) { reader = new OggVorbisFileReader (source, threading ? OggVorbisFileReader::DecodeThreaded : OggVorbisFileReader::DecodeAtOnce, OggVorbisFileReader::CacheInTemporaryFile, targetRate, reporter); if (!reader->isOK()) { delete reader; reader = 0; } } } #endif #endif #ifdef HAVE_MAD if (!reader) { if (MP3FileReader::supports(source)) { reader = new MP3FileReader (source, threading ? MP3FileReader::DecodeThreaded : MP3FileReader::DecodeAtOnce, MP3FileReader::CacheInTemporaryFile, targetRate, reporter); if (!reader->isOK()) { delete reader; reader = 0; } } } #endif #ifdef HAVE_QUICKTIME if (!reader) { if (QuickTimeFileReader::supports(source)) { reader = new QuickTimeFileReader (source, threading ? QuickTimeFileReader::DecodeThreaded : QuickTimeFileReader::DecodeAtOnce, QuickTimeFileReader::CacheInTemporaryFile, targetRate, reporter); if (!reader->isOK()) { delete reader; reader = 0; } } } #endif #ifdef HAVE_COREAUDIO if (!reader) { if (CoreAudioFileReader::supports(source)) { reader = new CoreAudioFileReader (source, threading ? CoreAudioFileReader::DecodeThreaded : CoreAudioFileReader::DecodeAtOnce, CoreAudioFileReader::CacheInTemporaryFile, targetRate, reporter); if (!reader->isOK()) { delete reader; reader = 0; } } } #endif // If none of the readers claimed to support this file extension, // perhaps the extension is missing or misleading. Try again, // ignoring it. We have to be confident that the reader won't // open just any old text file or whatever and pretend it's // succeeded if (!reader) { reader = new WavFileReader(source); if (targetRate != 0 && reader->isOK() && reader->getSampleRate() != targetRate) { SVDEBUG << "AudioFileReaderFactory::createReader: WAV file rate: " << reader->getSampleRate() << ", creating resampling reader" << endl; delete reader; reader = new ResamplingWavFileReader (source, threading ? ResamplingWavFileReader::ResampleThreaded : ResamplingWavFileReader::ResampleAtOnce, ResamplingWavFileReader::CacheInTemporaryFile, targetRate, reporter); } if (!reader->isOK()) { delete reader; reader = 0; } } #ifdef HAVE_OGGZ #ifdef HAVE_FISHSOUND if (!reader) { reader = new OggVorbisFileReader (source, threading ? OggVorbisFileReader::DecodeThreaded : OggVorbisFileReader::DecodeAtOnce, OggVorbisFileReader::CacheInTemporaryFile, targetRate, reporter); if (!reader->isOK()) { delete reader; reader = 0; } } #endif #endif #ifdef HAVE_MAD if (!reader) { reader = new MP3FileReader (source, threading ? MP3FileReader::DecodeThreaded : MP3FileReader::DecodeAtOnce, MP3FileReader::CacheInTemporaryFile, targetRate, reporter); if (!reader->isOK()) { delete reader; reader = 0; } } #endif #ifdef HAVE_QUICKTIME if (!reader) { reader = new QuickTimeFileReader (source, threading ? QuickTimeFileReader::DecodeThreaded : QuickTimeFileReader::DecodeAtOnce, QuickTimeFileReader::CacheInTemporaryFile, targetRate, reporter); if (!reader->isOK()) { delete reader; reader = 0; } } #endif #ifdef HAVE_COREAUDIO if (!reader) { reader = new CoreAudioFileReader (source, threading ? CoreAudioFileReader::DecodeThreaded : CoreAudioFileReader::DecodeAtOnce, CoreAudioFileReader::CacheInTemporaryFile, targetRate, reporter); if (!reader->isOK()) { delete reader; reader = 0; } } #endif if (reader) { if (reader->isOK()) { SVDEBUG << "AudioFileReaderFactory: Reader is OK" << endl; return reader; } std::cerr << "AudioFileReaderFactory: Preferred reader for " << "url \"" << source.getLocation().toStdString() << "\" (content type \"" << source.getContentType() << "\") failed"; if (reader->getError() != "") { std::cerr << ": \"" << reader->getError() << "\""; } std::cerr << std::endl; delete reader; reader = 0; } std::cerr << "AudioFileReaderFactory: No reader" << std::endl; return reader; }