2 Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
22 /** @file src/filter.h
23 * @brief A class to describe one of FFmpeg's video or audio filters.
27 #ifndef DCPOMATIC_FILTER_H
28 #define DCPOMATIC_FILTER_H
31 #include <boost/optional.hpp>
37 * @brief A class to describe one of FFmpeg's video or audio filters.
39 * We don't support FFmpeg's post-processing filters here as they cannot cope with greater than
40 * 8bpp. FFmpeg quantizes e.g. yuv422p10le down to yuv422p before running such filters, which
41 * we don't really want to do.
46 Filter(std::string id, std::string name, std::string category, std::string ffmpeg_string);
49 std::string id () const {
53 /** @return user-visible name */
54 std::string name () const {
58 /** @return string for a FFmpeg filter descriptor */
59 std::string ffmpeg () const {
63 std::string category () const {
67 static std::vector<Filter> all ();
68 static boost::optional<Filter> from_id(std::string d);
69 static void setup_filters ();
70 static std::string ffmpeg_string(std::vector<Filter> const& filters);
76 /** user-visible name */
78 std::string _category;
79 /** string for a FFmpeg filter descriptor */
82 /** all available filters */
83 static std::vector<Filter> _filters;
87 bool operator==(Filter const& a, Filter const& b);
88 bool operator!=(Filter const& a, Filter const& b);
89 bool operator<(Filter const& a, Filter const& b);