2 Copyright (C) 2014-2020 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 /** @file src/lib/dcp_examiner.h
23 * @brief DCPExaminer class.
27 #include "audio_examiner.h"
28 #include "dcp_text_track.h"
29 #include "dcpomatic_assert.h"
30 #include "font_id_allocator.h"
31 #include "video_examiner.h"
32 #include <dcp/dcp_time.h>
33 #include <dcp/rating.h>
39 class DCPExaminer : public VideoExaminer, public AudioExaminer
42 DCPExaminer(std::shared_ptr<const DCPContent>, bool tolerant);
44 bool has_video () const override {
48 boost::optional<double> video_frame_rate () const override {
49 return _video_frame_rate;
52 dcp::Size video_size () const override {
53 DCPOMATIC_ASSERT (_has_video);
54 DCPOMATIC_ASSERT (_video_size);
58 Frame video_length () const override {
62 bool yuv () const override {
66 VideoRange range () const override {
67 return VideoRange::FULL;
70 PixelQuanta pixel_quanta () const override {
74 std::string name () const {
78 bool encrypted () const {
82 bool needs_assets () const {
86 bool has_audio () const override {
90 int audio_channels () const override {
91 return _audio_channels.get_value_or (0);
94 int active_audio_channels() const {
95 return _active_audio_channels.get_value_or(0);
98 Frame audio_length () const override {
102 int audio_frame_rate () const override {
103 return _audio_frame_rate.get_value_or (48000);
106 boost::optional<dcp::LanguageTag> audio_language () const {
107 return _audio_language;
110 /** @param type TEXT_OPEN_SUBTITLE or TEXT_CLOSED_CAPTION.
111 * @return the number of "streams" of this type in the DCP.
112 * Reels do not affect the return value of this method: if a DCP
113 * has any subtitles, type=TEXT_OPEN_SUBTITLE will return 1.
115 int text_count (TextType type) const {
116 return _text_count[type];
119 boost::optional<dcp::LanguageTag> open_subtitle_language () const {
120 return _open_subtitle_language;
123 DCPTextTrack dcp_text_track (int i) const {
124 DCPOMATIC_ASSERT (i >= 0 && i < static_cast<int>(_dcp_text_tracks.size()));
125 return _dcp_text_tracks[i];
128 bool kdm_valid () const {
132 boost::optional<dcp::Standard> standard () const {
136 bool three_d () const {
140 dcp::ContentKind content_kind () const {
141 DCPOMATIC_ASSERT(_content_kind);
142 return *_content_kind;
145 std::string cpl () const {
149 std::list<int64_t> reel_lengths () const {
150 return _reel_lengths;
153 std::map<dcp::Marker, dcp::Time> markers () const {
157 std::vector<dcp::Rating> ratings () const {
161 std::vector<std::string> content_versions () const {
162 return _content_versions;
165 bool has_atmos () const {
169 Frame atmos_length () const {
170 return _atmos_length;
173 dcp::Fraction atmos_edit_rate () const {
174 return _atmos_edit_rate;
177 void add_fonts(std::shared_ptr<TextContent> content);
180 boost::optional<double> _video_frame_rate;
181 boost::optional<dcp::Size> _video_size;
182 Frame _video_length = 0;
183 boost::optional<int> _audio_channels;
184 boost::optional<int> _active_audio_channels;
185 boost::optional<int> _audio_frame_rate;
186 Frame _audio_length = 0;
188 /** true if this DCP has video content (but false if it has unresolved references to video content) */
189 bool _has_video = false;
190 /** true if this DCP has audio content (but false if it has unresolved references to audio content) */
191 bool _has_audio = false;
192 boost::optional<dcp::LanguageTag> _audio_language;
193 /** number of different assets of each type (OCAP/CCAP) */
194 EnumIndexedVector<int, TextType> _text_count;
195 boost::optional<dcp::LanguageTag> _open_subtitle_language;
196 /** the DCPTextTracks for each of our CCAPs */
197 std::vector<DCPTextTrack> _dcp_text_tracks;
198 bool _encrypted = false;
199 bool _needs_assets = false;
200 bool _kdm_valid = false;
201 boost::optional<dcp::Standard> _standard;
202 bool _three_d = false;
203 boost::optional<dcp::ContentKind> _content_kind;
205 std::list<int64_t> _reel_lengths;
206 std::map<dcp::Marker, dcp::Time> _markers;
207 std::vector<dcp::Rating> _ratings;
208 std::vector<std::string> _content_versions;
209 bool _has_atmos = false;
210 Frame _atmos_length = 0;
211 dcp::Fraction _atmos_edit_rate;
215 Font(int reel_index_, std::string asset_id_, std::shared_ptr<dcpomatic::Font> font_)
216 : reel_index(reel_index_)
217 , asset_id(asset_id_)
222 std::string asset_id;
223 std::shared_ptr<dcpomatic::Font> font;
226 std::vector<Font> _fonts;
227 FontIDAllocator _font_id_allocator;