2 Copyright (C) 2012-2017 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
6 DCP-o-matic is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 DCP-o-matic is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
21 /** @file src/film_viewer.h
22 * @brief A wx widget to view `thumbnails' of a Film.
26 #include "lib/config.h"
33 class RGBPlusAlphaImage;
39 * @brief A wx widget to view a preview of a Film.
41 class FilmViewer : public wxPanel
44 FilmViewer (wxWindow *, bool outline_content = true, bool jump_to_selected = true);
47 void set_film (boost::shared_ptr<Film>);
48 boost::shared_ptr<Film> film () const {
52 /** @return our `playhead' position; this may not lie exactly on a frame boundary */
53 DCPTime position () const {
54 return _video_position;
57 void set_position (DCPTime p);
58 void set_coalesce_player_changes (bool c);
59 void set_dcp_decode_reduction (boost::optional<int> reduction);
60 boost::optional<int> dcp_decode_reduction () const;
63 bool quick_refresh ();
65 int dropped () const {
69 int audio_callback (void* out, unsigned int frames);
71 boost::signals2::signal<void (boost::weak_ptr<PlayerVideo>)> ImageChanged;
75 void panel_sized (wxSizeEvent &);
76 void slider_moved (bool page);
77 void slider_released ();
80 void calculate_sizes ();
81 void check_play_state ();
82 void active_jobs_changed (boost::optional<std::string>);
83 void rewind_clicked (wxMouseEvent &);
84 void back_clicked (wxMouseEvent &);
85 void forward_clicked (wxMouseEvent &);
86 void player_changed (int, bool);
87 void update_position_label ();
88 void update_position_slider ();
90 void display_player_video ();
91 void seek (DCPTime t, bool accurate);
92 void refresh_panel ();
93 void setup_sensitivity ();
94 void film_changed (Film::Property);
95 DCPTime nudge_amount (wxMouseEvent &);
96 void timecode_clicked ();
97 void frame_number_clicked ();
98 void go_to (DCPTime t);
99 void jump_to_selected_clicked ();
100 void recreate_butler ();
101 void config_changed (Config::Property);
102 DCPTime time () const;
105 Frame average_latency () const;
106 DCPTime one_video_frame () const;
108 boost::shared_ptr<Film> _film;
109 boost::shared_ptr<Player> _player;
112 /** The area that we put our image in */
114 wxCheckBox* _outline_content;
115 wxRadioButton* _left_eye;
116 wxRadioButton* _right_eye;
117 wxCheckBox* _jump_to_selected;
119 wxButton* _rewind_button;
120 wxButton* _back_button;
121 wxButton* _forward_button;
122 wxStaticText* _frame_number;
123 wxStaticText* _timecode;
124 wxToggleButton* _play_button;
126 bool _coalesce_player_changes;
127 std::list<int> _pending_player_changes;
128 bool _slider_being_moved;
129 bool _was_running_before_slider;
131 std::pair<boost::shared_ptr<PlayerVideo>, DCPTime> _player_video;
132 boost::shared_ptr<const Image> _frame;
133 DCPTime _video_position;
134 Position<int> _inter_position;
135 dcp::Size _inter_size;
137 /** Size of our output (including padding if we have any) */
139 /** Size of the panel that we have available */
140 dcp::Size _panel_size;
144 unsigned int _audio_block_size;
146 boost::shared_ptr<Butler> _butler;
148 std::list<Frame> _latency_history;
149 /** Mutex to protect _latency_history */
150 mutable boost::mutex _latency_history_mutex;
151 int _latency_history_count;
154 boost::optional<int> _dcp_decode_reduction;
156 boost::signals2::scoped_connection _config_changed_connection;