2 Copyright (C) 2013-2014 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
24 #include "colour_conversion.h"
29 class VideoContentProperty
32 static int const VIDEO_SIZE;
33 static int const VIDEO_FRAME_RATE;
34 static int const VIDEO_FRAME_TYPE;
35 static int const VIDEO_CROP;
36 static int const VIDEO_SCALE;
37 static int const COLOUR_CONVERSION;
40 class VideoContentScale
44 VideoContentScale (Ratio const *);
45 VideoContentScale (bool);
46 VideoContentScale (boost::shared_ptr<cxml::Node>);
48 libdcp::Size size (boost::shared_ptr<const VideoContent>, libdcp::Size, libdcp::Size) const;
49 std::string id () const;
50 std::string name () const;
51 void as_xml (xmlpp::Node *) const;
53 Ratio const * ratio () const {
61 static void setup_scales ();
62 static std::vector<VideoContentScale> all () {
65 static VideoContentScale from_id (std::string id);
68 /** a ratio to stretch the content to, or 0 for no stretch */
70 /** true if we want to scale the content */
73 static std::vector<VideoContentScale> _scales;
76 bool operator== (VideoContentScale const & a, VideoContentScale const & b);
77 bool operator!= (VideoContentScale const & a, VideoContentScale const & b);
79 class VideoContent : public virtual Content
84 VideoContent (boost::shared_ptr<const Film>);
85 VideoContent (boost::shared_ptr<const Film>, Time, VideoContent::Frame);
86 VideoContent (boost::shared_ptr<const Film>, boost::filesystem::path);
87 VideoContent (boost::shared_ptr<const Film>, boost::shared_ptr<const cxml::Node>, int);
88 VideoContent (boost::shared_ptr<const Film>, std::vector<boost::shared_ptr<Content> >);
90 void as_xml (xmlpp::Node *) const;
91 std::string technical_summary () const;
92 virtual std::string information () const;
93 virtual std::string identifier () const;
95 VideoContent::Frame video_length () const {
96 boost::mutex::scoped_lock lm (_mutex);
100 VideoContent::Frame video_length_after_3d_combine () const {
101 boost::mutex::scoped_lock lm (_mutex);
102 if (_video_frame_type == VIDEO_FRAME_TYPE_3D_ALTERNATE) {
103 return _video_length / 2;
106 return _video_length;
109 libdcp::Size video_size () const {
110 boost::mutex::scoped_lock lm (_mutex);
114 float video_frame_rate () const {
115 boost::mutex::scoped_lock lm (_mutex);
116 return _video_frame_rate;
119 float original_video_frame_rate () const {
120 boost::mutex::scoped_lock lm (_mutex);
121 return _original_video_frame_rate;
124 void set_video_frame_type (VideoFrameType);
125 void set_video_frame_rate (float);
127 void set_left_crop (int);
128 void set_right_crop (int);
129 void set_top_crop (int);
130 void set_bottom_crop (int);
132 void set_scale (VideoContentScale);
133 void set_colour_conversion (ColourConversion);
135 VideoFrameType video_frame_type () const {
136 boost::mutex::scoped_lock lm (_mutex);
137 return _video_frame_type;
141 boost::mutex::scoped_lock lm (_mutex);
145 int left_crop () const {
146 boost::mutex::scoped_lock lm (_mutex);
150 int right_crop () const {
151 boost::mutex::scoped_lock lm (_mutex);
155 int top_crop () const {
156 boost::mutex::scoped_lock lm (_mutex);
160 int bottom_crop () const {
161 boost::mutex::scoped_lock lm (_mutex);
165 /** @return Description of how to scale this content (if indeed it should be scaled) */
166 VideoContentScale scale () const {
167 boost::mutex::scoped_lock lm (_mutex);
171 ColourConversion colour_conversion () const {
172 boost::mutex::scoped_lock lm (_mutex);
173 return _colour_conversion;
176 libdcp::Size video_size_after_3d_split () const;
177 libdcp::Size video_size_after_crop () const;
179 VideoContent::Frame time_to_content_video_frames (Time) const;
181 void scale_and_crop_to_fit_width ();
182 void scale_and_crop_to_fit_height ();
185 void take_from_video_examiner (boost::shared_ptr<VideoExaminer>);
187 VideoContent::Frame _video_length;
188 float _original_video_frame_rate;
189 float _video_frame_rate;
192 friend class ffmpeg_pts_offset_test;
193 friend class best_dcp_frame_rate_test_single;
194 friend class best_dcp_frame_rate_test_double;
195 friend class audio_sampling_rate_test;
197 void setup_default_colour_conversion ();
199 libdcp::Size _video_size;
200 VideoFrameType _video_frame_type;
202 VideoContentScale _scale;
203 ColourConversion _colour_conversion;