/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 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 "player.h"
+#include "player_text.h"
+#include <boost/signals2.hpp>
+
-#include <boost/shared_ptr.hpp>
-#include <boost/thread/mutex.hpp>
-#include <boost/thread/condition.hpp>
-#include <boost/thread.hpp>
-#include <boost/optional.hpp>
-#include <list>
-#include <stdint.h>
-extern "C" {
-#include <libavutil/samplefmt.h>
-}
-#ifdef HAVE_SWRESAMPLE
-extern "C" {
-#include <libswresample/swresample.h>
-}
-#endif
-#include <sndfile.h>
-#include "util.h"
-#include "video_sink.h"
-#include "audio_sink.h"
-
-class EncodeOptions;
-class Image;
-class Subtitle;
-class AudioBuffers;
class Film;
-class ServerDescription;
-class DCPVideoFrame;
+class Encoder;
+class Player;
+class Job;
+class PlayerVideo;
+class AudioBuffers;
+
/** @class Encoder
- * @brief Encoder to J2K and WAV for DCP.
- *
- * Video is supplied to process_video as YUV frames, and audio
- * is supplied as uncompressed PCM in blocks of various sizes.
+ * @brief Parent class for something that can encode a film into some format
*/
-
-class Encoder : public VideoSink, public AudioSink
+class Encoder
{
public:
- Encoder (boost::shared_ptr<const Film> f, boost::shared_ptr<const EncodeOptions> o);
- virtual ~Encoder ();
-
- /** Called to indicate that a processing run is about to begin */
- virtual void process_begin ();
+ Encoder (std::shared_ptr<const Film> film, std::weak_ptr<Job> job);
+ virtual ~Encoder () {}
- /** Call with a frame of video.
- * @param i Video frame image.
- * @param same true if i is the same as the last time we were called.
- * @param s A subtitle that should be on this frame, or 0.
- */
- void process_video (boost::shared_ptr<Image> i, bool same, boost::shared_ptr<Subtitle> s);
+ Encoder (Encoder const&) = delete;
+ Encoder& operator= (Encoder const&) = delete;
- /** Call with some audio data */
- void process_audio (boost::shared_ptr<AudioBuffers>);
+ virtual void go () = 0;
- /** Called when a processing run has finished */
- virtual void process_end ();
+ /** @return the current frame rate over the last short while */
+ virtual boost::optional<float> current_rate () const {
+ return {};
+ }
- float current_frames_per_second () const;
- bool skipping () const;
- SourceFrame video_frame () const;
+ /** @return the number of frames that are done */
+ virtual Frame frames_done () const = 0;
+ virtual bool finishing () const = 0;
protected:
-
- void frame_done ();
- void frame_skipped ();
-
- /** Film that we are encoding */
- boost::shared_ptr<const Film> _film;
- /** Options */
- boost::shared_ptr<const EncodeOptions> _opt;
-
- /** 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;
-
- /** Number of video frames received so far */
- SourceFrame _video_frame;
- /** Number of audio frames received so far */
- int64_t _audio_frame;
-
-private:
- void close_sound_files ();
- void write_audio (boost::shared_ptr<const AudioBuffers> audio);
-
- void encoder_thread (ServerDescription *);
- void terminate_worker_threads ();
- void link (std::string, std::string) const;
-
-#if HAVE_SWRESAMPLE
- SwrContext* _swr_context;
-#endif
-
- /** List of links that we need to create when all frames have been processed;
- * such that we need to call link (first, second) for each member of this list.
- * In other words, `first' is a `real' frame and `second' should be a link to `first'.
- */
- std::list<std::pair<int, int> > _links_required;
-
- std::vector<SNDFILE*> _sound_files;
- int64_t _audio_frames_written;
-
- boost::optional<int> _last_real_frame;
- bool _process_end;
- std::list<boost::shared_ptr<DCPVideoFrame> > _queue;
- std::list<boost::thread *> _worker_threads;
- mutable boost::mutex _worker_mutex;
- boost::condition _worker_condition;
+ std::shared_ptr<const Film> _film;
+ std::weak_ptr<Job> _job;
+ Player _player;
};
+
#endif
projects / dcpomatic.git / blobdiff