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
36 * @brief A class to describe one of FFmpeg's video or audio filters.
38 * We don't support FFmpeg's post-processing filters here as they cannot cope with greater than
39 * 8bpp. FFmpeg quantizes e.g. yuv422p10le down to yuv422p before running such filters, which
40 * we don't really want to do.
45 Filter (std::string i, std::string n, std::string c, std::string f);
48 std::string id () const {
52 /** @return user-visible name */
53 std::string name () const {
57 /** @return string for a FFmpeg filter descriptor */
58 std::string ffmpeg () const {
62 std::string category () const {
66 static std::vector<Filter const *> all ();
67 static Filter const * from_id (std::string d);
68 static void setup_filters ();
69 static std::string ffmpeg_string (std::vector<Filter const *> const & filters);
75 /** user-visible name */
77 std::string _category;
78 /** string for a FFmpeg filter descriptor */
81 /** all available filters */
82 static std::vector<Filter> _filters;
83 static void maybe_add (std::string, std::string, std::string, std::string);