2 Copyright (C) 2013-2016 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef DCPOMATIC_VIDEO_CONTENT_H
21 #define DCPOMATIC_VIDEO_CONTENT_H
23 #include "colour_conversion.h"
24 #include "video_content_scale.h"
25 #include "dcpomatic_time.h"
26 #include "user_property.h"
28 #include "content_part.h"
29 #include <boost/thread/mutex.hpp>
30 #include <boost/weak_ptr.hpp>
31 #include <boost/enable_shared_from_this.hpp>
38 class VideoContentProperty
41 static int const VIDEO_SIZE;
42 static int const VIDEO_FRAME_RATE;
43 static int const VIDEO_FRAME_TYPE;
44 static int const VIDEO_CROP;
45 static int const VIDEO_SCALE;
46 static int const COLOUR_CONVERSION;
47 static int const VIDEO_FADE_IN;
48 static int const VIDEO_FADE_OUT;
51 class VideoContent : public ContentPart, public boost::enable_shared_from_this<VideoContent>
54 VideoContent (Content* parent, boost::shared_ptr<const Film>);
55 VideoContent (Content* parent, boost::shared_ptr<const Film>, cxml::ConstNodePtr, int);
56 VideoContent (Content* parent, boost::shared_ptr<const Film>, std::vector<boost::shared_ptr<Content> >);
58 void as_xml (xmlpp::Node *) const;
59 std::string technical_summary () const;
60 std::string identifier () const;
62 void set_default_colour_conversion ();
64 Frame video_length () const {
65 boost::mutex::scoped_lock lm (_mutex);
69 Frame video_length_after_3d_combine () const {
70 boost::mutex::scoped_lock lm (_mutex);
71 if (_video_frame_type == VIDEO_FRAME_TYPE_3D_ALTERNATE) {
72 return _video_length / 2;
78 dcp::Size video_size () const {
79 boost::mutex::scoped_lock lm (_mutex);
83 double video_frame_rate () const;
85 /** @return true if this content has a specific video frame rate, false
86 * if it should use the DCP's rate.
88 bool has_own_video_frame_rate () const {
89 boost::mutex::scoped_lock lm (_mutex);
90 return static_cast<bool>(_video_frame_rate);
93 void set_video_frame_type (VideoFrameType);
94 void set_video_frame_rate (double);
96 void set_left_crop (int);
97 void set_right_crop (int);
98 void set_top_crop (int);
99 void set_bottom_crop (int);
101 void set_scale (VideoContentScale);
102 void unset_colour_conversion ();
103 void set_colour_conversion (ColourConversion);
105 void set_fade_in (Frame);
106 void set_fade_out (Frame);
108 VideoFrameType video_frame_type () const {
109 boost::mutex::scoped_lock lm (_mutex);
110 return _video_frame_type;
114 boost::mutex::scoped_lock lm (_mutex);
118 int left_crop () const {
119 boost::mutex::scoped_lock lm (_mutex);
123 int right_crop () const {
124 boost::mutex::scoped_lock lm (_mutex);
128 int top_crop () const {
129 boost::mutex::scoped_lock lm (_mutex);
133 int bottom_crop () const {
134 boost::mutex::scoped_lock lm (_mutex);
138 /** @return Description of how to scale this content (if indeed it should be scaled) */
139 VideoContentScale scale () const {
140 boost::mutex::scoped_lock lm (_mutex);
144 boost::optional<ColourConversion> colour_conversion () const {
145 boost::mutex::scoped_lock lm (_mutex);
146 return _colour_conversion;
149 boost::optional<double> sample_aspect_ratio () const {
150 boost::mutex::scoped_lock lm (_mutex);
151 return _sample_aspect_ratio;
155 boost::mutex::scoped_lock lm (_mutex);
159 Frame fade_in () const {
160 boost::mutex::scoped_lock lm (_mutex);
164 Frame fade_out () const {
165 boost::mutex::scoped_lock lm (_mutex);
169 dcp::Size video_size_after_3d_split () const;
170 dcp::Size video_size_after_crop () const;
172 ContentTime dcp_time_to_content_time (DCPTime) const;
174 boost::optional<double> fade (Frame) const;
176 void scale_and_crop_to_fit_width ();
177 void scale_and_crop_to_fit_height ();
179 std::string processing_description () const;
181 void set_video_length (Frame);
183 void take_from_video_examiner (boost::shared_ptr<VideoExaminer>);
184 void add_properties (std::list<UserProperty> &) const;
189 /** Video frame rate, or not set if this content should use the DCP's frame rate */
190 boost::optional<double> _video_frame_rate;
191 boost::optional<ColourConversion> _colour_conversion;
193 friend struct ffmpeg_pts_offset_test;
194 friend struct best_dcp_frame_rate_test_single;
195 friend struct best_dcp_frame_rate_test_double;
196 friend struct audio_sampling_rate_test;
198 void setup_default_colour_conversion ();
200 dcp::Size _video_size;
201 VideoFrameType _video_frame_type;
203 VideoContentScale _scale;
204 /** Sample aspect ratio obtained from the content file's header,
207 boost::optional<double> _sample_aspect_ratio;