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138 lines
4.3 KiB
C++
138 lines
4.3 KiB
C++
/*
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Copyright (c) 2019, Dimitri Diakopoulos All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "AudioDecoder.h"
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#include "WavDecoder.h"
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#include "WavPackDecoder.h"
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#include "FlacDecoder.h"
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#include "VorbisDecoder.h"
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#include "OpusDecoder.h"
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#include "MusepackDecoder.h"
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#include "ModplugDecoder.h"
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using namespace nqr;
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NyquistIO::NyquistIO()
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{
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BuildDecoderTable();
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}
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NyquistIO::~NyquistIO() { }
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void NyquistIO::Load(AudioData * data, const std::string & path)
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{
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if (IsFileSupported(path))
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{
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if (decoderTable.size())
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{
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auto fileExtension = ParsePathForExtension(path);
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auto decoder = GetDecoderForExtension(fileExtension);
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try
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{
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decoder->LoadFromPath(data, path);
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}
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catch (const std::exception & e)
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{
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std::cerr << "Caught internal exception: " << e.what() << std::endl;
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}
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}
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else throw std::runtime_error("No available decoders.");
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}
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else
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{
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throw UnsupportedExtensionEx();
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}
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}
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void NyquistIO::Load(AudioData * data, const std::string & extension, const std::vector<uint8_t> & buffer)
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{
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if (decoderTable.find(extension) == decoderTable.end())
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{
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throw UnsupportedExtensionEx();
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}
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if (decoderTable.size())
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{
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auto decoder = GetDecoderForExtension(extension);
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try
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{
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decoder->LoadFromBuffer(data, buffer);
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}
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catch (const std::exception & e)
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{
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std::cerr << "Caught internal exception: " << e.what() << std::endl;
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}
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}
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else
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{
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throw std::runtime_error("No available decoders.");
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}
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}
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bool NyquistIO::IsFileSupported(const std::string & path) const
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{
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auto fileExtension = ParsePathForExtension(path);
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if (decoderTable.find(fileExtension) == decoderTable.end()) return false;
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else return true;
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}
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std::string NyquistIO::ParsePathForExtension(const std::string & path) const
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{
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if (path.find_last_of(".") != std::string::npos) return path.substr(path.find_last_of(".") + 1);
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return std::string("");
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}
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std::shared_ptr<BaseDecoder> NyquistIO::GetDecoderForExtension(const std::string & ext)
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{
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if (decoderTable.size()) return decoderTable[ext];
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else throw std::runtime_error("No available decoders.");
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return nullptr;
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}
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void NyquistIO::AddDecoderToTable(std::shared_ptr<nqr::BaseDecoder> decoder)
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{
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auto supportedExtensions = decoder->GetSupportedFileExtensions();
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for (const auto ext : supportedExtensions)
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{
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if (decoderTable.count(ext) >= 1) throw std::runtime_error("decoder already exists for extension.");
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decoderTable.insert(DecoderPair(ext, decoder));
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}
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}
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void NyquistIO::BuildDecoderTable()
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{
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AddDecoderToTable(std::make_shared<WavDecoder>());
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AddDecoderToTable(std::make_shared<WavPackDecoder>());
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AddDecoderToTable(std::make_shared<FlacDecoder>());
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AddDecoderToTable(std::make_shared<VorbisDecoder>());
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AddDecoderToTable(std::make_shared<OpusDecoder>());
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AddDecoderToTable(std::make_shared<MusepackDecoder>());
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AddDecoderToTable(std::make_shared<ModplugDecoder>());
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}
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