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/*
Copyright (C) 2012-2021 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/>.
*/
/** @file src/filter.h
* @brief A class to describe one of FFmpeg's video or audio filters.
*/
#ifndef DCPOMATIC_FILTER_H
#define DCPOMATIC_FILTER_H
#include <string>
#include <vector>
#include <boost/optional.hpp>
/** @class Filter
* @brief A class to describe one of FFmpeg's video or audio filters.
*
* We don't support FFmpeg's post-processing filters here as they cannot cope with greater than
* 8bpp. FFmpeg quantizes e.g. yuv422p10le down to yuv422p before running such filters, which
* we don't really want to do.
*/
class Filter
{
public:
Filter(std::string id, std::string name, std::string category, std::string ffmpeg_string);
/** @return our id */
std::string id() const {
return _id;
}
/** @return user-visible name */
std::string name() const {
return _name;
}
/** @return string for a FFmpeg filter descriptor */
std::string ffmpeg() const {
return _ffmpeg;
}
std::string category() const {
return _category;
}
static std::vector<Filter> all();
static boost::optional<Filter> from_id(std::string d);
static void setup_filters();
static std::string ffmpeg_string(std::vector<Filter> const& filters);
private:
/** our id */
std::string _id;
/** user-visible name */
std::string _name;
std::string _category;
/** string for a FFmpeg filter descriptor */
std::string _ffmpeg;
/** all available filters */
static std::vector<Filter> _filters;
};
bool operator==(Filter const& a, Filter const& b);
bool operator!=(Filter const& a, Filter const& b);
bool operator<(Filter const& a, Filter const& b);
#endif
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