X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Ffilter_graph.h;h=10298cb74297babfebcb03d0ddc377d77591d482;hb=372555641062f5c7c6e4a1d5f67cfaf12a2c6799;hp=4ff10dece1a3dfe996076110dc3c41231eec1344;hpb=5161626c3c28ba528511a8b211286a5e81a0f02a;p=dcpomatic.git

diff --git a/src/lib/filter_graph.h b/src/lib/filter_graph.h
index 4ff10dece..10298cb74 100644
--- a/src/lib/filter_graph.h
+++ b/src/lib/filter_graph.h
@@ -1,44 +1,64 @@
 /*
-    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    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.
 
-    This program is distributed in the hope that it will be useful,
+    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 this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
-#ifndef DVDOMATIC_FILTER_GRAPH_H
-#define DVDOMATIC_FILTER_GRAPH_H
+/** @file src/lib/filter_graph.h
+ *  @brief A graph of FFmpeg filters.
+ */
+
+#ifndef DCPOMATIC_FILTER_GRAPH_H
+#define DCPOMATIC_FILTER_GRAPH_H
 
 #include "util.h"
+extern "C" {
+#include <libavfilter/buffersink.h>
+}
 
-class Decoder;
+struct AVFilterContext;
+struct AVFrame;
 class Image;
-class Film;
+class Filter;
 
-class FilterGraph
+/** @class FilterGraph
+ *  @brief A graph of FFmpeg filters.
+ */
+class FilterGraph : public boost::noncopyable
 {
 public:
-	FilterGraph (boost::shared_ptr<Film> film, Decoder* decoder, bool crop, Size s, AVPixelFormat p);
+	FilterGraph ();
+	virtual ~FilterGraph ();
+
+	void setup (std::vector<Filter const *>);
+	AVFilterContext* get (std::string name);
 
-	bool can_process (Size s, AVPixelFormat p) const;
-	std::list<boost::shared_ptr<Image> > process (AVFrame const * frame);
+protected:
+	virtual std::string src_parameters () const = 0;
+	virtual std::string src_name () const = 0;
+	virtual void* sink_parameters () const = 0;
+	virtual std::string sink_name () const = 0;
 
-private:
+	AVFilterGraph* _graph;
+	/** true if this graph has no filters in, so it just copies stuff straight through */
+	bool _copy;
 	AVFilterContext* _buffer_src_context;
 	AVFilterContext* _buffer_sink_context;
-	Size _size;
-	AVPixelFormat _pixel_format;
+	AVFrame* _frame;
 };
 
 #endif