2 Copyright (C) 2013-2021 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/>.
22 #ifndef DCPOMATIC_VIDEO_CONTENT_H
23 #define DCPOMATIC_VIDEO_CONTENT_H
26 #include "colour_conversion.h"
27 #include "content_part.h"
29 #include "dcpomatic_time.h"
30 #include "pixel_quanta.h"
31 #include "user_property.h"
32 #include "video_frame_type.h"
33 #include "video_range.h"
34 #include "video_type.h"
36 #include <dcp/language_tag.h>
37 #include <boost/thread/mutex.hpp>
46 class VideoContentProperty
50 static int const SIZE;
51 static int const FRAME_TYPE;
52 static int const CROP;
53 static int const COLOUR_CONVERSION;
54 static int const FADE_IN;
55 static int const FADE_OUT;
56 static int const RANGE;
57 static int const CUSTOM_RATIO;
58 static int const CUSTOM_SIZE;
59 static int const BURNT_SUBTITLE_LANGUAGE;
60 static int const TYPE;
64 class VideoContent : public ContentPart, public std::enable_shared_from_this<VideoContent>
67 explicit VideoContent (Content* parent);
68 VideoContent (Content* parent, cxml::ConstNodePtr node, int version, VideoRange video_range_hint);
69 VideoContent (Content* parent, std::vector<std::shared_ptr<Content>>);
71 void as_xml (xmlpp::Node *) const;
72 std::string technical_summary () const;
73 std::string identifier () const;
74 void take_settings_from (std::shared_ptr<const VideoContent> c);
76 Frame length () const {
77 boost::mutex::scoped_lock lm (_mutex);
81 Frame length_after_3d_combine () const {
82 boost::mutex::scoped_lock lm (_mutex);
83 if (_frame_type == VideoFrameType::THREE_D_ALTERNATE) {
90 dcp::Size size () const {
91 boost::mutex::scoped_lock lm (_mutex);
95 void set_type(VideoType type);
96 void set_frame_type (VideoFrameType);
98 void set_crop (Crop crop);
99 void set_left_crop (int);
100 void set_right_crop (int);
101 void set_top_crop (int);
102 void set_bottom_crop (int);
104 void set_custom_ratio (boost::optional<float> ratio);
105 void set_custom_size (boost::optional<dcp::Size> size);
107 void unset_colour_conversion ();
108 void set_colour_conversion (ColourConversion);
110 void set_fade_in (Frame);
111 void set_fade_out (Frame);
113 void set_range (VideoRange);
116 void set_burnt_subtitle_language (boost::optional<dcp::LanguageTag> language);
118 VideoType type() const {
119 boost::mutex::scoped_lock lm (_mutex);
123 VideoFrameType frame_type () const {
124 boost::mutex::scoped_lock lm (_mutex);
128 Crop actual_crop () const;
130 Crop requested_crop () const {
131 boost::mutex::scoped_lock lm (_mutex);
135 int requested_left_crop () const {
136 boost::mutex::scoped_lock lm (_mutex);
140 int requested_right_crop () const {
141 boost::mutex::scoped_lock lm (_mutex);
145 int requested_top_crop () const {
146 boost::mutex::scoped_lock lm (_mutex);
150 int requested_bottom_crop () const {
151 boost::mutex::scoped_lock lm (_mutex);
156 boost::optional<float> custom_ratio () const {
157 boost::mutex::scoped_lock lm (_mutex);
158 return _custom_ratio;
162 boost::optional<dcp::Size> custom_size () const {
163 boost::mutex::scoped_lock lm (_mutex);
168 boost::optional<ColourConversion> colour_conversion () const {
169 boost::mutex::scoped_lock lm (_mutex);
170 return _colour_conversion;
173 boost::optional<double> sample_aspect_ratio () const {
174 boost::mutex::scoped_lock lm (_mutex);
175 return _sample_aspect_ratio;
179 boost::mutex::scoped_lock lm (_mutex);
183 Frame fade_in () const {
184 boost::mutex::scoped_lock lm (_mutex);
188 Frame fade_out () const {
189 boost::mutex::scoped_lock lm (_mutex);
193 VideoRange range () const {
194 boost::mutex::scoped_lock lm (_mutex);
198 PixelQuanta pixel_quanta () const {
199 boost::mutex::scoped_lock lm (_mutex);
200 return _pixel_quanta;
204 boost::mutex::scoped_lock lm (_mutex);
208 boost::optional<dcp::LanguageTag> burnt_subtitle_language () const {
209 boost::mutex::scoped_lock lm (_mutex);
210 return _burnt_subtitle_language;
214 /* XXX: names for these? */
215 dcp::Size size_after_3d_split () const;
216 dcp::Size size_after_crop () const;
217 dcp::Size scaled_size (dcp::Size container_size);
219 boost::optional<double> fade(std::shared_ptr<const Film> film, dcpomatic::ContentTime time) const;
221 std::string processing_description (std::shared_ptr<const Film> film);
223 void set_length (Frame);
225 void take_from_examiner(std::shared_ptr<const Film> film, std::shared_ptr<VideoExaminer>);
226 void add_properties (std::list<UserProperty> &) const;
228 void modify_position (std::shared_ptr<const Film> film, dcpomatic::DCPTime& pos) const;
229 void modify_trim_start (dcpomatic::ContentTime& pos) const;
231 static std::shared_ptr<VideoContent> from_xml (Content* parent, cxml::ConstNodePtr node, int version, VideoRange video_range_hint);
235 friend struct ffmpeg_pts_offset_test;
236 friend struct best_dcp_frame_rate_test_single;
237 friend struct best_dcp_frame_rate_test_double;
238 friend struct audio_sampling_rate_test;
239 friend struct scaled_size_test1;
240 friend struct scaled_size_test2;
241 friend struct scaled_size_legacy_test;
243 void setup_default_colour_conversion ();
247 boost::optional<ColourConversion> _colour_conversion;
250 VideoFrameType _frame_type;
252 /** ratio to scale cropped image to (or none to guess); i.e. if set, scale to _custom_ratio:1 */
253 boost::optional<float> _custom_ratio;
254 /** size to scale cropped image to; only used if _custom_ratio is none */
255 boost::optional<dcp::Size> _custom_size;
256 /** ratio obtained from an older metadata file; will be used to set up
257 * _custom_{ratio,size} (or not, if not required) on the first call to
260 boost::optional<float> _legacy_ratio;
261 /** Sample aspect ratio obtained from the content file's header, if there is one */
262 boost::optional<double> _sample_aspect_ratio;
264 /** fade in time in content frames */
266 /** fade out time in content frames */
269 PixelQuanta _pixel_quanta;
270 boost::optional<dcp::LanguageTag> _burnt_subtitle_language;