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/*
Copyright (C) 2017-2018 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 <boost/thread.hpp>
#include <map>
struct AVBufferRef;
class Image;
/** Store of shared_ptr<Image> to keep them alive whilst raw pointers into
* their data have been passed to FFmpeg. The second part of the pair is
* a count of how many copies of the same key must be kept.
*/
class ImageStore
{
public:
ImageStore() {}
ImageStore(ImageStore const&) = delete;
ImageStore& operator=(ImageStore const&) = delete;
AVBufferRef* create_buffer(std::shared_ptr<const Image>, int component);
private:
static void buffer_free(void* opaque, uint8_t* data);
void buffer_free2(uint8_t* data);
std::map<uint8_t*, std::pair<std::shared_ptr<const Image>, int>> _images;
boost::mutex _mutex;
};
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