X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Ffilter_graph.h;h=10298cb74297babfebcb03d0ddc377d77591d482;hb=1679c3dc40262733f46dda9f4151367bf93f2b76;hp=2138943e42b6e3e6ef11ba4967f0c85f0755d618;hpb=3fc3aad8735903ced3dae65f764eb33e3f5b3f11;p=dcpomatic.git

diff --git a/src/lib/filter_graph.h b/src/lib/filter_graph.h
index 2138943e4..10298cb74 100644
--- a/src/lib/filter_graph.h
+++ b/src/lib/filter_graph.h
@@ -1,19 +1,20 @@
 /*
-    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/>.
 
 */
 
@@ -21,52 +22,43 @@
  *  @brief A graph of FFmpeg filters.
  */
 
-#ifndef DVDOMATIC_FILTER_GRAPH_H
-#define DVDOMATIC_FILTER_GRAPH_H
+#ifndef DCPOMATIC_FILTER_GRAPH_H
+#define DCPOMATIC_FILTER_GRAPH_H
 
 #include "util.h"
+extern "C" {
+#include <libavfilter/buffersink.h>
+}
 
+struct AVFilterContext;
+struct AVFrame;
 class Image;
-class VideoFilter;
-class FFmpegDecoder;
-
-class FilterGraph
-{
-public:
-	virtual bool can_process (libdcp::Size, AVPixelFormat) const = 0;
-	virtual std::list<boost::shared_ptr<Image> > process (AVFrame *) = 0;
-};
-
-class EmptyFilterGraph : public FilterGraph
-{
-public:
-	bool can_process (libdcp::Size, AVPixelFormat) const {
-		return true;
-	}
-
-	std::list<boost::shared_ptr<Image> > process (AVFrame *);
-};
+class Filter;
 
-/** @class FFmpegFilterGraph
+/** @class FilterGraph
  *  @brief A graph of FFmpeg filters.
  */
-class FFmpegFilterGraph : public FilterGraph
+class FilterGraph : public boost::noncopyable
 {
 public:
-	FFmpegFilterGraph (boost::shared_ptr<Film> film, FFmpegDecoder* decoder, libdcp::Size s, AVPixelFormat p);
-	~FFmpegFilterGraph ();
+	FilterGraph ();
+	virtual ~FilterGraph ();
+
+	void setup (std::vector<Filter const *>);
+	AVFilterContext* get (std::string name);
 
-	bool can_process (libdcp::Size s, AVPixelFormat p) const;
-	std::list<boost::shared_ptr<Image> > process (AVFrame * 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;
-	libdcp::Size _size; ///< size of the images that this chain can process
-	AVPixelFormat _pixel_format; ///< pixel format of the images that this chain can process
 	AVFrame* _frame;
 };
 
-boost::shared_ptr<FilterGraph> filter_graph_factory (boost::shared_ptr<Film>, FFmpegDecoder *, libdcp::Size, AVPixelFormat);
-
 #endif