2 Copyright (C) 2012 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.
21 * @brief A representation of some audio and video content, and details of
22 * how they should be presented in a DCP.
25 #ifndef DCPOMATIC_FILM_H
26 #define DCPOMATIC_FILM_H
31 #include <boost/thread/mutex.hpp>
32 #include <boost/thread.hpp>
33 #include <boost/signals2.hpp>
34 #include <boost/enable_shared_from_this.hpp>
36 #include "dci_metadata.h"
38 #include "ffmpeg_content.h"
46 class ExamineContentJob;
47 class AnalyseAudioJob;
48 class ExternalAudioStream;
53 * @brief A representation of some audio and video content, and details of
54 * how they should be presented in a DCP.
56 class Film : public boost::enable_shared_from_this<Film>
59 Film (std::string d, bool must_exist = true);
62 std::string info_dir () const;
63 std::string j2c_path (int f, bool t) const;
64 std::string info_path (int f) const;
65 std::string internal_video_mxf_dir () const;
66 std::string internal_video_mxf_filename () const;
67 std::string audio_analysis_path () const;
69 void examine_content (boost::shared_ptr<Content>);
70 std::string dcp_video_mxf_filename () const;
71 std::string dcp_audio_mxf_filename () const;
73 void analyse_audio ();
74 void send_dcp_to_tms ();
78 * It is safe to call this from any thread.
80 boost::shared_ptr<Log> log () const {
84 int encoded_frames () const;
86 std::string file (std::string f) const;
87 std::string dir (std::string d) const;
89 void write_metadata () const;
91 std::string dci_name (bool if_created_now) const;
92 std::string dcp_name (bool if_created_now = false) const;
94 /** @return true if our state has changed since we last saved it */
99 bool have_dcp () const;
101 boost::shared_ptr<Player> player () const;
102 boost::shared_ptr<Playlist> playlist () const;
104 OutputAudioFrame dcp_audio_frame_rate () const;
106 OutputAudioFrame time_to_audio_frames (Time) const;
107 OutputVideoFrame time_to_video_frames (Time) const;
108 Time video_frames_to_time (OutputVideoFrame) const;
109 Time audio_frames_to_time (OutputAudioFrame) const;
111 /* Proxies for some Playlist methods */
113 Playlist::ContentList content () const;
115 Time length () const;
116 bool has_subtitles () const;
117 OutputVideoFrame best_dcp_video_frame_rate () const;
122 /** Identifiers for the parts of our state;
123 used for signalling changes.
129 /** The playlist's content list has changed (i.e. content has been added, moved around or removed) */
145 DCP_VIDEO_FRAME_RATE,
151 std::string directory () const {
152 boost::mutex::scoped_lock lm (_directory_mutex);
156 std::string name () const {
157 boost::mutex::scoped_lock lm (_state_mutex);
161 bool use_dci_name () const {
162 boost::mutex::scoped_lock lm (_state_mutex);
163 return _use_dci_name;
166 DCPContentType const * dcp_content_type () const {
167 boost::mutex::scoped_lock lm (_state_mutex);
168 return _dcp_content_type;
171 Container const * container () const {
172 boost::mutex::scoped_lock lm (_state_mutex);
176 std::vector<Filter const *> filters () const {
177 boost::mutex::scoped_lock lm (_state_mutex);
181 Scaler const * scaler () const {
182 boost::mutex::scoped_lock lm (_state_mutex);
187 boost::mutex::scoped_lock lm (_state_mutex);
191 float audio_gain () const {
192 boost::mutex::scoped_lock lm (_state_mutex);
196 int audio_delay () const {
197 boost::mutex::scoped_lock lm (_state_mutex);
201 bool with_subtitles () const {
202 boost::mutex::scoped_lock lm (_state_mutex);
203 return _with_subtitles;
206 int subtitle_offset () const {
207 boost::mutex::scoped_lock lm (_state_mutex);
208 return _subtitle_offset;
211 float subtitle_scale () const {
212 boost::mutex::scoped_lock lm (_state_mutex);
213 return _subtitle_scale;
216 int colour_lut () const {
217 boost::mutex::scoped_lock lm (_state_mutex);
221 int j2k_bandwidth () const {
222 boost::mutex::scoped_lock lm (_state_mutex);
223 return _j2k_bandwidth;
226 DCIMetadata dci_metadata () const {
227 boost::mutex::scoped_lock lm (_state_mutex);
228 return _dci_metadata;
231 /* XXX: -> "video_frame_rate" */
232 int dcp_video_frame_rate () const {
233 boost::mutex::scoped_lock lm (_state_mutex);
234 return _dcp_video_frame_rate;
239 void set_directory (std::string);
240 void set_name (std::string);
241 void set_use_dci_name (bool);
242 void add_content (boost::shared_ptr<Content>);
243 void remove_content (boost::shared_ptr<Content>);
244 void set_dcp_content_type (DCPContentType const *);
245 void set_container (Container const *);
246 void set_filters (std::vector<Filter const *>);
247 void set_scaler (Scaler const *);
249 void set_audio_gain (float);
250 void set_audio_delay (int);
251 void set_with_subtitles (bool);
252 void set_subtitle_offset (int);
253 void set_subtitle_scale (float);
254 void set_colour_lut (int);
255 void set_j2k_bandwidth (int);
256 void set_dci_metadata (DCIMetadata);
257 void set_dcp_video_frame_rate (int);
258 void set_dci_date_today ();
260 /** Emitted when some property has of the Film has changed */
261 mutable boost::signals2::signal<void (Property)> Changed;
263 /** Emitted when some property of our content has changed */
264 mutable boost::signals2::signal<void (boost::weak_ptr<Content>, int)> ContentChanged;
266 boost::signals2::signal<void ()> AudioAnalysisSucceeded;
268 /** Current version number of the state file */
269 static int const state_version;
273 void signal_changed (Property);
274 void analyse_audio_finished ();
275 std::string video_state_identifier () const;
276 void read_metadata ();
277 void playlist_changed ();
278 void playlist_content_changed (boost::weak_ptr<Content>, int);
279 std::string filename_safe_name () const;
281 /** Log to write to */
282 boost::shared_ptr<Log> _log;
283 /** Any running AnalyseAudioJob, or 0 */
284 boost::shared_ptr<AnalyseAudioJob> _analyse_audio_job;
285 boost::shared_ptr<Playlist> _playlist;
287 /** Complete path to directory containing the film metadata;
288 * must not be relative.
290 std::string _directory;
291 /** Mutex for _directory */
292 mutable boost::mutex _directory_mutex;
294 /** Name for DCP-o-matic */
296 /** True if a auto-generated DCI-compliant name should be used for our DCP */
298 /** The type of content that this Film represents (feature, trailer etc.) */
299 DCPContentType const * _dcp_content_type;
300 /** The container to put this Film in (flat, scope, etc.) */
301 Container const * _container;
302 /** Video filters that should be used when generating DCPs */
303 std::vector<Filter const *> _filters;
304 /** Scaler algorithm to use */
305 Scaler const * _scaler;
306 /** true to create an A/B comparison DCP, where the left half of the image
307 is the video without any filters or post-processing, and the right half
308 has the specified filters and post-processing.
311 /** Gain to apply to audio in dB */
313 /** Delay to apply to audio (positive moves audio later) in milliseconds */
315 /** True if subtitles should be shown for this film */
316 bool _with_subtitles;
317 /** y offset for placing subtitles, in source pixels; +ve is further down
318 the frame, -ve is further up.
320 int _subtitle_offset;
321 /** scale factor to apply to subtitles */
322 float _subtitle_scale;
323 /** index of colour LUT to use when converting RGB to XYZ.
328 /** bandwidth for J2K files in bits per second */
330 /** DCI naming stuff */
331 DCIMetadata _dci_metadata;
332 /** Frames per second to run our DCP at */
333 int _dcp_video_frame_rate;
334 /** The date that we should use in a DCI name */
335 boost::gregorian::date _dci_date;
337 /** true if our state has changed since we last saved it */
340 /** Mutex for all state except _directory */
341 mutable boost::mutex _state_mutex;
343 friend class paths_test;
344 friend class film_metadata_test;