77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
/*
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* Copyright (C) 2013 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <boost/gil/image.hpp>
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#include <boost/gil/typedefs.hpp>
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#include <boost/gil/extension/io/jpeg_io.hpp>
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#include <boost/gil/extension/numeric/sampler.hpp>
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#include <boost/gil/extension/numeric/resample.hpp>
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#include <boost/gil/extension/io_new/jpeg_all.hpp>
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#include "logger/Logger.hpp"
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#include "CoverArt.hpp"
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namespace CoverArt {
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bool
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CoverArt::scale(std::size_t size)
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{
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bool res = false;
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if (!size)
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return false;
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try {
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boost::gil::rgb8_image_t source;
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boost::gil::rgb8_image_t dest(size, size);
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// Read source
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{
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std::istringstream iss( std::string(_data.begin(), _data.end()));
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boost::gil::read_image(iss, source, boost::gil::jpeg_tag());
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}
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// Resize
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boost::gil::resize_view(boost::gil::const_view(source),
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boost::gil::view(dest),
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boost::gil::bilinear_sampler());
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// Output to dest
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{
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std::ostringstream oss;
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boost::gil::write_view(oss, boost::gil::const_view(dest), boost::gil::jpeg_tag());
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std::string output = oss.str();
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_data.assign(output.begin(), output.end());
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}
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res = true;
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}
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catch(std::exception& e)
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{
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LMS_LOG(MOD_COVER, SEV_ERROR) << "Caught exception: " << e.what();
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}
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return res;
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}
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} // namespace CoverArt
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