Mercurial > hg > svcore
view data/fileio/AudioFileReaderFactory.cpp @ 1125:2c43f9904068 3.0-integration
Merge from default branch
author | Chris Cannam |
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date | Thu, 20 Aug 2015 13:33:46 +0100 |
parents | cd156ede1395 |
children | 6877f4200912 |
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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 "DecodingWavFileReader.h" #include "OggVorbisFileReader.h" #include "MP3FileReader.h" #include "QuickTimeFileReader.h" #include "CoreAudioFileReader.h" #include "AudioFileSizeEstimator.h" #include "base/StorageAdviser.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, sv_samplerate_t targetRate, bool normalised, ProgressReporter *reporter) { return create(source, targetRate, normalised, false, reporter); } AudioFileReader * AudioFileReaderFactory::createThreadingReader(FileSource source, sv_samplerate_t targetRate, bool normalised, ProgressReporter *reporter) { return create(source, targetRate, normalised, true, reporter); } AudioFileReader * AudioFileReaderFactory::create(FileSource source, sv_samplerate_t targetRate, bool normalised, bool threading, ProgressReporter *reporter) { QString err; SVDEBUG << "AudioFileReaderFactory::createReader(\"" << source.getLocation() << "\"): Requested rate: " << targetRate << endl; if (!source.isOK()) { cerr << "AudioFileReaderFactory::createReader(\"" << source.getLocation() << "\": Failed to retrieve source (transmission error?): " << source.getErrorString() << endl; return 0; } if (!source.isAvailable()) { SVDEBUG << "AudioFileReaderFactory::createReader(\"" << source.getLocation() << "\": Source not found" << endl; return 0; } AudioFileReader *reader = 0; sv_frame_t estimatedSamples = AudioFileSizeEstimator::estimate(source, targetRate); CodedAudioFileReader::CacheMode cacheMode = CodedAudioFileReader::CacheInTemporaryFile; if (estimatedSamples > 0) { size_t kb = (estimatedSamples * sizeof(float)) / 1024; StorageAdviser::Recommendation rec = StorageAdviser::recommend(StorageAdviser::SpeedCritical, kb, kb); if (rec == StorageAdviser::UseMemory || rec == StorageAdviser::PreferMemory) { cacheMode = CodedAudioFileReader::CacheInMemory; } } CodedAudioFileReader::DecodeMode decodeMode = (threading ? CodedAudioFileReader::DecodeThreaded : CodedAudioFileReader::DecodeAtOnce); // Try to construct a preferred reader based on the extension or // MIME type. #define CHECK(reader) if (!reader->isOK()) { delete reader; reader = 0; } if (WavFileReader::supports(source)) { reader = new WavFileReader(source); sv_samplerate_t fileRate = reader->getSampleRate(); if (reader->isOK() && (!reader->isQuicklySeekable() || normalised || (cacheMode == CodedAudioFileReader::CacheInMemory) || (targetRate != 0 && fileRate != targetRate))) { SVDEBUG << "AudioFileReaderFactory::createReader: WAV file rate: " << reader->getSampleRate() << ", normalised " << normalised << ", seekable " << reader->isQuicklySeekable() << ", in memory " << (cacheMode == CodedAudioFileReader::CacheInMemory) << ", creating decoding reader" << endl; delete reader; reader = new DecodingWavFileReader (source, decodeMode, cacheMode, targetRate ? targetRate : fileRate, normalised, reporter); CHECK(reader); } } #ifdef HAVE_OGGZ #ifdef HAVE_FISHSOUND if (!reader && OggVorbisFileReader::supports(source)) { reader = new OggVorbisFileReader (source, decodeMode, cacheMode, targetRate, normalised, reporter); CHECK(reader); } #endif #endif #ifdef HAVE_MAD if (!reader && MP3FileReader::supports(source)) { reader = new MP3FileReader (source, decodeMode, cacheMode, targetRate, normalised, reporter); CHECK(reader); } #endif #ifdef HAVE_QUICKTIME if (!reader && QuickTimeFileReader::supports(source)) { reader = new QuickTimeFileReader (source, decodeMode, cacheMode, targetRate, normalised, reporter); CHECK(reader); } #endif #ifdef HAVE_COREAUDIO if (!reader && CoreAudioFileReader::supports(source)) { reader = new CoreAudioFileReader (source, decodeMode, cacheMode, targetRate, normalised, reporter); CHECK(reader); } #endif if (reader) { // The happy case: a reader recognised the file extension & // succeeded in opening the file return reader; } // 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 reader = new WavFileReader(source); sv_samplerate_t fileRate = reader->getSampleRate(); if (reader->isOK() && (!reader->isQuicklySeekable() || normalised || (cacheMode == CodedAudioFileReader::CacheInMemory) || (targetRate != 0 && fileRate != targetRate))) { SVDEBUG << "AudioFileReaderFactory::createReader: WAV file rate: " << reader->getSampleRate() << ", normalised " << normalised << ", seekable " << reader->isQuicklySeekable() << ", in memory " << (cacheMode == CodedAudioFileReader::CacheInMemory) << ", creating decoding reader" << endl; delete reader; reader = new DecodingWavFileReader (source, decodeMode, cacheMode, targetRate ? targetRate : fileRate, normalised, reporter); } CHECK(reader); #ifdef HAVE_OGGZ #ifdef HAVE_FISHSOUND if (!reader) { reader = new OggVorbisFileReader (source, decodeMode, cacheMode, targetRate, normalised, reporter); CHECK(reader); } #endif #endif #ifdef HAVE_MAD if (!reader) { reader = new MP3FileReader (source, decodeMode, cacheMode, targetRate, normalised, reporter); CHECK(reader); } #endif #ifdef HAVE_QUICKTIME if (!reader) { reader = new QuickTimeFileReader (source, decodeMode, cacheMode, targetRate, normalised, reporter); CHECK(reader); } #endif #ifdef HAVE_COREAUDIO if (!reader) { reader = new CoreAudioFileReader (source, decodeMode, cacheMode, targetRate, normalised, reporter); CHECK(reader); } #endif if (!reader) { cerr << "AudioFileReaderFactory::Failed to create a reader for " << "url \"" << source.getLocation() << "\" (content type \"" << source.getContentType() << "\")" << endl; return nullptr; } return reader; }