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 a piece of video (with sound), including naming,
22 * the source content file, and how it should be presented in a DCP.
25 #ifndef DVDOMATIC_FILM_H
26 #define DVDOMATIC_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 <libavcodec/avcodec.h>
38 #include "dcp_content_type.h"
41 #include "dci_metadata.h"
47 class ExamineContentJob;
48 class ExternalAudioStream;
51 * @brief A representation of a video, maybe with sound.
53 * A representation of a piece of video (maybe with sound), including naming,
54 * the source content file, and how it 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);
63 std::string j2k_dir () const;
65 void examine_content ();
66 void send_dcp_to_tms ();
71 * It is safe to call this from any thread.
77 int encoded_frames () const;
79 std::string file (std::string f) const;
80 std::string dir (std::string d) const;
82 std::string content_path () const;
83 ContentType content_type () const;
85 int target_audio_sample_rate () const;
87 void write_metadata () const;
88 void read_metadata ();
90 libdcp::Size cropped_size (libdcp::Size) const;
91 boost::optional<int> dcp_length () const;
92 std::string dci_name () const;
93 std::string dcp_name () const;
95 /** @return true if our state has changed since we last saved it */
100 int audio_channels () const;
102 void set_dci_date_today ();
104 /** Identifiers for the parts of our state;
105 used for signalling changes.
112 TRUST_CONTENT_HEADER,
121 CONTENT_AUDIO_STREAM,
136 CONTENT_AUDIO_STREAMS,
144 std::string directory () const {
145 boost::mutex::scoped_lock lm (_directory_mutex);
149 std::string name () const {
150 boost::mutex::scoped_lock lm (_state_mutex);
154 bool use_dci_name () const {
155 boost::mutex::scoped_lock lm (_state_mutex);
156 return _use_dci_name;
159 std::string content () const {
160 boost::mutex::scoped_lock lm (_state_mutex);
164 bool trust_content_header () const {
165 boost::mutex::scoped_lock lm (_state_mutex);
166 return _trust_content_header;
169 DCPContentType const * dcp_content_type () const {
170 boost::mutex::scoped_lock lm (_state_mutex);
171 return _dcp_content_type;
174 Format const * format () const {
175 boost::mutex::scoped_lock lm (_state_mutex);
180 boost::mutex::scoped_lock lm (_state_mutex);
184 std::vector<Filter const *> filters () const {
185 boost::mutex::scoped_lock lm (_state_mutex);
189 Scaler const * scaler () const {
190 boost::mutex::scoped_lock lm (_state_mutex);
194 SourceFrame dcp_trim_start () const {
195 boost::mutex::scoped_lock lm (_state_mutex);
196 return _dcp_trim_start;
199 SourceFrame dcp_trim_end () const {
200 boost::mutex::scoped_lock lm (_state_mutex);
201 return _dcp_trim_end;
204 bool dcp_ab () const {
205 boost::mutex::scoped_lock lm (_state_mutex);
209 boost::shared_ptr<AudioStream> content_audio_stream () const {
210 boost::mutex::scoped_lock lm (_state_mutex);
211 return _content_audio_stream;
214 std::vector<std::string> external_audio () const {
215 boost::mutex::scoped_lock lm (_state_mutex);
216 return _external_audio;
219 bool use_content_audio () const {
220 boost::mutex::scoped_lock lm (_state_mutex);
221 return _use_content_audio;
224 float audio_gain () const {
225 boost::mutex::scoped_lock lm (_state_mutex);
229 int audio_delay () const {
230 boost::mutex::scoped_lock lm (_state_mutex);
234 int still_duration () const {
235 boost::mutex::scoped_lock lm (_state_mutex);
236 return _still_duration;
239 boost::shared_ptr<SubtitleStream> subtitle_stream () const {
240 boost::mutex::scoped_lock lm (_state_mutex);
241 return _subtitle_stream;
244 bool with_subtitles () const {
245 boost::mutex::scoped_lock lm (_state_mutex);
246 return _with_subtitles;
249 int subtitle_offset () const {
250 boost::mutex::scoped_lock lm (_state_mutex);
251 return _subtitle_offset;
254 float subtitle_scale () const {
255 boost::mutex::scoped_lock lm (_state_mutex);
256 return _subtitle_scale;
259 int colour_lut () const {
260 boost::mutex::scoped_lock lm (_state_mutex);
264 int j2k_bandwidth () const {
265 boost::mutex::scoped_lock lm (_state_mutex);
266 return _j2k_bandwidth;
269 DCIMetadata dci_metadata () const {
270 boost::mutex::scoped_lock lm (_state_mutex);
271 return _dci_metadata;
274 libdcp::Size size () const {
275 boost::mutex::scoped_lock lm (_state_mutex);
279 boost::optional<SourceFrame> length () const {
280 boost::mutex::scoped_lock lm (_state_mutex);
284 std::string content_digest () const {
285 boost::mutex::scoped_lock lm (_state_mutex);
286 return _content_digest;
289 std::vector<boost::shared_ptr<AudioStream> > content_audio_streams () const {
290 boost::mutex::scoped_lock lm (_state_mutex);
291 return _content_audio_streams;
294 std::vector<boost::shared_ptr<SubtitleStream> > subtitle_streams () const {
295 boost::mutex::scoped_lock lm (_state_mutex);
296 return _subtitle_streams;
299 float frames_per_second () const {
300 boost::mutex::scoped_lock lm (_state_mutex);
301 if (content_type() == STILL) {
305 return _frames_per_second;
308 boost::shared_ptr<AudioStream> audio_stream () const;
313 void set_directory (std::string);
314 void set_name (std::string);
315 void set_use_dci_name (bool);
316 void set_content (std::string);
317 void set_trust_content_header (bool);
318 void set_dcp_content_type (DCPContentType const *);
319 void set_format (Format const *);
320 void set_crop (Crop);
321 void set_left_crop (int);
322 void set_right_crop (int);
323 void set_top_crop (int);
324 void set_bottom_crop (int);
325 void set_filters (std::vector<Filter const *>);
326 void set_scaler (Scaler const *);
327 void set_dcp_trim_start (int);
328 void set_dcp_trim_end (int);
329 void set_dcp_ab (bool);
330 void set_content_audio_stream (boost::shared_ptr<AudioStream>);
331 void set_external_audio (std::vector<std::string>);
332 void set_use_content_audio (bool);
333 void set_audio_gain (float);
334 void set_audio_delay (int);
335 void set_still_duration (int);
336 void set_subtitle_stream (boost::shared_ptr<SubtitleStream>);
337 void set_with_subtitles (bool);
338 void set_subtitle_offset (int);
339 void set_subtitle_scale (float);
340 void set_colour_lut (int);
341 void set_j2k_bandwidth (int);
342 void set_dci_metadata (DCIMetadata);
343 void set_size (libdcp::Size);
344 void set_length (SourceFrame);
345 void unset_length ();
346 void set_content_digest (std::string);
347 void set_content_audio_streams (std::vector<boost::shared_ptr<AudioStream> >);
348 void set_subtitle_streams (std::vector<boost::shared_ptr<SubtitleStream> >);
349 void set_frames_per_second (float);
351 /** Emitted when some property has changed */
352 mutable boost::signals2::signal<void (Property)> Changed;
354 /** Current version number of the state file */
355 static int const state_version;
359 /** Log to write to */
362 /** Any running ExamineContentJob, or 0 */
363 boost::shared_ptr<ExamineContentJob> _examine_content_job;
365 /** The date that we should use in a DCI name */
366 boost::gregorian::date _dci_date;
368 void signal_changed (Property);
369 void examine_content_finished ();
371 /** Complete path to directory containing the film metadata;
372 * must not be relative.
374 std::string _directory;
375 /** Mutex for _directory */
376 mutable boost::mutex _directory_mutex;
378 /** Name for DVD-o-matic */
380 /** True if a auto-generated DCI-compliant name should be used for our DCP */
382 /** File or directory containing content; may be relative to our directory
383 * or an absolute path.
385 std::string _content;
386 /** If this is true, we will believe the length specified by the content
387 * file's header; if false, we will run through the whole content file
388 * the first time we see it in order to obtain the length.
390 bool _trust_content_header;
391 /** The type of content that this Film represents (feature, trailer etc.) */
392 DCPContentType const * _dcp_content_type;
393 /** The format to present this Film in (flat, scope, etc.) */
394 Format const * _format;
395 /** The crop to apply to the source */
397 /** Video filters that should be used when generating DCPs */
398 std::vector<Filter const *> _filters;
399 /** Scaler algorithm to use */
400 Scaler const * _scaler;
401 /** Frames to trim off the start of the DCP */
403 /** Frames to trim off the end of the DCP */
405 /** true to create an A/B comparison DCP, where the left half of the image
406 is the video without any filters or post-processing, and the right half
407 has the specified filters and post-processing.
410 /** The audio stream to use from our content */
411 boost::shared_ptr<AudioStream> _content_audio_stream;
412 /** List of filenames of external audio files, in channel order
413 (L, R, C, Lfe, Ls, Rs)
415 std::vector<std::string> _external_audio;
416 /** true to use audio from our content file; false to use external audio */
417 bool _use_content_audio;
418 /** Gain to apply to audio in dB */
420 /** Delay to apply to audio (positive moves audio later) in milliseconds */
422 /** Duration to make still-sourced films (in seconds) */
424 boost::shared_ptr<SubtitleStream> _subtitle_stream;
425 /** True if subtitles should be shown for this film */
426 bool _with_subtitles;
427 /** y offset for placing subtitles, in source pixels; +ve is further down
428 the frame, -ve is further up.
430 int _subtitle_offset;
431 /** scale factor to apply to subtitles */
432 float _subtitle_scale;
433 /** index of colour LUT to use when converting RGB to XYZ.
438 /** bandwidth for J2K files in bits per second */
441 /** DCI naming stuff */
442 DCIMetadata _dci_metadata;
444 /* Data which are cached to speed things up */
446 /** libdcp::Size, in pixels, of the source (ignoring cropping) */
448 /** The length of the source, in video frames (as far as we know) */
449 boost::optional<SourceFrame> _length;
450 /** MD5 digest of our content file */
451 std::string _content_digest;
452 /** The audio streams in our content */
453 std::vector<boost::shared_ptr<AudioStream> > _content_audio_streams;
454 /** A stream to represent possible external audio (will always exist) */
455 boost::shared_ptr<AudioStream> _external_audio_stream;
456 /** the subtitle streams that we can use */
457 std::vector<boost::shared_ptr<SubtitleStream> > _subtitle_streams;
458 /** Frames per second of the source */
459 float _frames_per_second;
461 /** true if our state has changed since we last saved it */
464 /** Mutex for all state except _directory */
465 mutable boost::mutex _state_mutex;
467 friend class paths_test;