/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2017 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_ENCODER_H
-#define DVDOMATIC_ENCODER_H
-
-/** @file src/encoder.h
- * @brief Parent class for classes which can encode video and audio frames.
- */
+#ifndef DCPOMATIC_ENCODER_H
+#define DCPOMATIC_ENCODER_H
-#include <boost/shared_ptr.hpp>
-#include <boost/thread/mutex.hpp>
-#include <list>
-#include <stdint.h>
-extern "C" {
-#include <libavutil/samplefmt.h>
-}
+#include "types.h"
+#include "player_subtitles.h"
+#include <boost/weak_ptr.hpp>
-class Options;
-class Image;
-class Subtitle;
-class AudioBuffers;
class Film;
+class Encoder;
+class Player;
+class Job;
+class PlayerVideo;
+class AudioBuffers;
-/** @class Encoder
- * @brief Parent class for classes which can encode video and audio frames.
- *
- * Video is supplied to process_video as YUV frames, and audio
- * is supplied as uncompressed PCM in blocks of various sizes.
- *
- * The subclass is expected to encode the video and/or audio in
- * some way and write it to disk.
- */
-
-class Encoder
+/** @class Encoder */
+class Encoder : public boost::noncopyable
{
public:
- Encoder (boost::shared_ptr<const Film> f, boost::shared_ptr<const Options> o);
+ Encoder (boost::shared_ptr<const Film> film, boost::weak_ptr<Job> job);
+ virtual ~Encoder () {}
- /** Called to indicate that a processing run is about to begin */
- virtual void process_begin (int64_t audio_channel_layout) = 0;
+ virtual void go () = 0;
- /** Called with a frame of video.
- * @param i Video frame image.
- * @param f Frame number within the film.
- * @param s A subtitle that should be on this frame, or 0.
- */
- virtual void process_video (boost::shared_ptr<Image> i, int f, boost::shared_ptr<Subtitle> s) = 0;
-
- /** Called with some audio data.
- * @param d Array of pointers to floating point sample data for each channel.
- * @param s Number of frames (ie number of samples in each channel)
- */
- virtual void process_audio (boost::shared_ptr<const AudioBuffers>) = 0;
-
- /** Called when a processing run has finished */
- virtual void process_end () = 0;
-
- float current_frames_per_second () const;
- bool skipping () const;
- int last_frame () const;
+ /** @return the current frame rate over the last short while */
+ virtual float current_rate () const = 0;
+ /** @return the number of frames that are done */
+ virtual Frame frames_done () const = 0;
+ virtual bool finishing () const = 0;
protected:
- void frame_done (int n);
- void frame_skipped ();
-
- /** Film that we are encoding */
- boost::shared_ptr<const Film> _film;
- /** Options */
- boost::shared_ptr<const Options> _opt;
+ virtual void video (boost::shared_ptr<PlayerVideo>, DCPTime) = 0;
+ virtual void audio (boost::shared_ptr<AudioBuffers>, DCPTime) = 0;
+ virtual void subtitle (PlayerSubtitles, DCPTimePeriod) = 0;
- /** Mutex for _time_history, _just_skipped and _last_frame */
- mutable boost::mutex _history_mutex;
- /** List of the times of completion of the last _history_size frames;
- first is the most recently completed.
- */
- std::list<struct timeval> _time_history;
- /** Number of frames that we should keep history for */
- static int const _history_size;
- /** true if the last frame we processed was skipped (because it was already done) */
- bool _just_skipped;
- /** Index of the last frame to be processed */
- int _last_frame;
+ boost::shared_ptr<const Film> _film;
+ boost::weak_ptr<Job> _job;
+ boost::shared_ptr<Player> _player;
};
#endif
projects / dcpomatic.git / blobdiff