Extract VideoEncoder as a parent of J2KEncoder.

1 files changed, 69 insertions, 0 deletions

diff --git a/src/lib/video_encoder.h b/src/lib/video_encoder.h
new file mode 100644
index 000000000..8cc33ef8a
--- /dev/null
+++ b/src/lib/video_encoder.h
@@ -0,0 +1,69 @@
+/*
+    Copyright (C) 2024 Carl Hetherington <cth@carlh.net>
+
+    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.
+
+    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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#ifndef DCPOMATIC_VIDEO_ENCODER_H
+#define DCPOMATIC_VIDEO_ENCODER_H
+
+
+#include "dcpomatic_time.h"
+#include "event_history.h"
+#include "film.h"
+#include "player_video.h"
+
+
+class Writer;
+
+
+class VideoEncoder
+{
+public:
+	VideoEncoder(std::shared_ptr<const Film> film, Writer& writer);
+	virtual ~VideoEncoder() {}
+
+	VideoEncoder(VideoEncoder const&) = delete;
+	VideoEncoder& operator=(VideoEncoder const&) = delete;
+
+	/** Called to indicate that a processing run is about to begin */
+	virtual void begin() {}
+
+	/** Called to pass a bit of video to be encoded as the next DCP frame */
+	virtual void encode(std::shared_ptr<PlayerVideo> pv, dcpomatic::DCPTime time);
+
+	virtual void pause() = 0;
+	virtual void resume() = 0;
+
+	/** Called when a processing run has finished */
+	virtual void end() = 0;
+
+	int video_frames_enqueued() const;
+	boost::optional<float> current_encoding_rate() const;
+
+protected:
+	/** Film that we are encoding */
+	std::shared_ptr<const Film> _film;
+	Writer& _writer;
+	EventHistory _history;
+	boost::optional<dcpomatic::DCPTime> _last_player_video_time;
+};
+
+
+#endif
+