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/*
Copyright (C) 2015-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "image_proxy.h"
#include <dcp/array_data.h>
#include <dcp/util.h>
#include <boost/thread/mutex.hpp>
namespace dcp {
class MonoJ2KPictureFrame;
class StereoJ2KPictureFrame;
}
class J2KImageProxy : public ImageProxy
{
public:
J2KImageProxy (boost::filesystem::path path, dcp::Size, AVPixelFormat pixel_format);
J2KImageProxy (
std::shared_ptr<const dcp::MonoJ2KPictureFrame> frame,
dcp::Size,
AVPixelFormat pixel_format,
boost::optional<int> forced_reduction
);
J2KImageProxy (
std::shared_ptr<const dcp::StereoJ2KPictureFrame> frame,
dcp::Size,
dcp::Eye,
AVPixelFormat pixel_format,
boost::optional<int> forced_reduction
);
J2KImageProxy (std::shared_ptr<cxml::Node> xml, std::shared_ptr<Socket> socket);
/* For tests */
J2KImageProxy (dcp::ArrayData data, dcp::Size size, AVPixelFormat pixel_format);
Result image (
Image::Alignment alignment,
boost::optional<dcp::Size> size = boost::optional<dcp::Size> ()
) const override;
void add_metadata(xmlpp::Element*) const override;
void write_to_socket (std::shared_ptr<Socket> override) const override;
/** @return true if our image is definitely the same as another, false if it is probably not */
bool same (std::shared_ptr<const ImageProxy>) const override;
int prepare (Image::Alignment alignment, boost::optional<dcp::Size> = boost::optional<dcp::Size>()) const override;
std::shared_ptr<const dcp::Data> j2k () const {
return _data;
}
dcp::Size size () const {
return _size;
}
boost::optional<dcp::Eye> eye () const {
return _eye;
}
size_t memory_used () const override;
private:
std::shared_ptr<const dcp::Data> _data;
dcp::Size _size;
boost::optional<dcp::Eye> _eye;
mutable std::shared_ptr<Image> _image;
mutable boost::optional<dcp::Size> _target_size;
mutable boost::optional<int> _reduce;
AVPixelFormat _pixel_format;
mutable boost::mutex _mutex;
boost::optional<int> _forced_reduction;
/** true if an error occurred while decoding the JPEG2000 data, false if not */
mutable bool _error;
};
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