2 Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/lib/filter_graph.h
21 * @brief A graph of FFmpeg filters.
24 #ifndef DCPOMATIC_FILTER_GRAPH_H
25 #define DCPOMATIC_FILTER_GRAPH_H
29 #include <libavfilter/buffersink.h>
32 struct AVFilterContext;
37 /** @class FilterGraph
38 * @brief A graph of FFmpeg filters.
40 class FilterGraph : public boost::noncopyable
44 virtual ~FilterGraph ();
46 void setup (std::vector<Filter const *>);
47 AVFilterContext* get (std::string name);
50 virtual std::string src_parameters () const = 0;
51 virtual std::string src_name () const = 0;
52 virtual void* sink_parameters () const = 0;
53 virtual std::string sink_name () const = 0;
55 AVFilterGraph* _graph;
56 /** true if this graph has no filters in, so it just copies stuff straight through */
58 AVFilterContext* _buffer_src_context;
59 AVFilterContext* _buffer_sink_context;