2 Copyright (C) 2013-2017 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/>.
23 #include "audio_buffers.h"
24 #include "content_audio.h"
25 #include "dcp_content.h"
28 #include "raw_image_proxy.h"
31 #include "render_subtitles.h"
33 #include "content_video.h"
34 #include "player_video.h"
35 #include "frame_rate_change.h"
36 #include "audio_processor.h"
38 #include "referenced_reel_asset.h"
39 #include "decoder_factory.h"
41 #include "video_decoder.h"
42 #include "audio_decoder.h"
43 #include "subtitle_content.h"
44 #include "subtitle_decoder.h"
45 #include "ffmpeg_content.h"
46 #include "audio_content.h"
47 #include "content_subtitle.h"
48 #include "dcp_decoder.h"
49 #include "image_decoder.h"
50 #include "resampler.h"
51 #include "compose.hpp"
53 #include <dcp/reel_sound_asset.h>
54 #include <dcp/reel_subtitle_asset.h>
55 #include <dcp/reel_picture_asset.h>
56 #include <boost/foreach.hpp>
63 #define LOG_GENERAL(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
75 using boost::shared_ptr;
76 using boost::weak_ptr;
77 using boost::dynamic_pointer_cast;
78 using boost::optional;
79 using boost::scoped_ptr;
81 Player::Player (shared_ptr<const Film> film, shared_ptr<const Playlist> playlist)
83 , _playlist (playlist)
84 , _have_valid_pieces (false)
85 , _ignore_video (false)
86 , _ignore_audio (false)
87 , _always_burn_subtitles (false)
89 , _play_referenced (false)
90 , _audio_merger (_film->audio_channels(), _film->audio_frame_rate())
92 _film_changed_connection = _film->Changed.connect (bind (&Player::film_changed, this, _1));
93 _playlist_changed_connection = _playlist->Changed.connect (bind (&Player::playlist_changed, this));
94 _playlist_content_changed_connection = _playlist->ContentChanged.connect (bind (&Player::playlist_content_changed, this, _1, _2, _3));
95 set_video_container_size (_film->frame_size ());
97 film_changed (Film::AUDIO_PROCESSOR);
99 seek (DCPTime (), true);
103 Player::setup_pieces ()
107 BOOST_FOREACH (shared_ptr<Content> i, _playlist->content ()) {
109 if (!i->paths_valid ()) {
113 shared_ptr<Decoder> decoder = decoder_factory (i, _film->log());
114 FrameRateChange frc (i->active_video_frame_rate(), _film->video_frame_rate());
117 /* Not something that we can decode; e.g. Atmos content */
121 if (decoder->video && _ignore_video) {
122 decoder->video->set_ignore ();
125 if (decoder->audio && _ignore_audio) {
126 decoder->audio->set_ignore ();
129 shared_ptr<DCPDecoder> dcp = dynamic_pointer_cast<DCPDecoder> (decoder);
130 if (dcp && _play_referenced) {
131 dcp->set_decode_referenced ();
134 shared_ptr<Piece> piece (new Piece (i, decoder, frc));
135 _pieces.push_back (piece);
137 if (decoder->video) {
138 decoder->video->Data.connect (bind (&Player::video, this, weak_ptr<Piece> (piece), _1));
141 if (decoder->audio) {
142 decoder->audio->Data.connect (bind (&Player::audio, this, weak_ptr<Piece> (piece), _1, _2));
145 if (decoder->subtitle) {
146 decoder->subtitle->ImageData.connect (bind (&Player::image_subtitle, this, weak_ptr<Piece> (piece), _1));
147 decoder->subtitle->TextData.connect (bind (&Player::text_subtitle, this, weak_ptr<Piece> (piece), _1));
151 BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
152 if (i->content->audio) {
153 BOOST_FOREACH (AudioStreamPtr j, i->content->audio->streams()) {
154 _stream_states[j] = StreamState (i, i->content->position ());
159 _have_valid_pieces = true;
163 Player::playlist_content_changed (weak_ptr<Content> w, int property, bool frequent)
165 shared_ptr<Content> c = w.lock ();
171 property == ContentProperty::POSITION ||
172 property == ContentProperty::LENGTH ||
173 property == ContentProperty::TRIM_START ||
174 property == ContentProperty::TRIM_END ||
175 property == ContentProperty::PATH ||
176 property == VideoContentProperty::FRAME_TYPE ||
177 property == DCPContentProperty::NEEDS_ASSETS ||
178 property == DCPContentProperty::NEEDS_KDM ||
179 property == SubtitleContentProperty::COLOUR ||
180 property == SubtitleContentProperty::OUTLINE ||
181 property == SubtitleContentProperty::SHADOW ||
182 property == SubtitleContentProperty::EFFECT_COLOUR ||
183 property == FFmpegContentProperty::SUBTITLE_STREAM ||
184 property == VideoContentProperty::COLOUR_CONVERSION
187 _have_valid_pieces = false;
191 property == SubtitleContentProperty::LINE_SPACING ||
192 property == SubtitleContentProperty::OUTLINE_WIDTH ||
193 property == SubtitleContentProperty::Y_SCALE ||
194 property == SubtitleContentProperty::FADE_IN ||
195 property == SubtitleContentProperty::FADE_OUT ||
196 property == ContentProperty::VIDEO_FRAME_RATE ||
197 property == SubtitleContentProperty::USE ||
198 property == SubtitleContentProperty::X_OFFSET ||
199 property == SubtitleContentProperty::Y_OFFSET ||
200 property == SubtitleContentProperty::X_SCALE ||
201 property == SubtitleContentProperty::FONTS ||
202 property == VideoContentProperty::CROP ||
203 property == VideoContentProperty::SCALE ||
204 property == VideoContentProperty::FADE_IN ||
205 property == VideoContentProperty::FADE_OUT
213 Player::set_video_container_size (dcp::Size s)
215 _video_container_size = s;
217 _black_image.reset (new Image (AV_PIX_FMT_RGB24, _video_container_size, true));
218 _black_image->make_black ();
222 Player::playlist_changed ()
224 _have_valid_pieces = false;
229 Player::film_changed (Film::Property p)
231 /* Here we should notice Film properties that affect our output, and
232 alert listeners that our output now would be different to how it was
233 last time we were run.
236 if (p == Film::CONTAINER) {
238 } else if (p == Film::VIDEO_FRAME_RATE) {
239 /* Pieces contain a FrameRateChange which contains the DCP frame rate,
240 so we need new pieces here.
242 _have_valid_pieces = false;
244 } else if (p == Film::AUDIO_PROCESSOR) {
245 if (_film->audio_processor ()) {
246 _audio_processor = _film->audio_processor()->clone (_film->audio_frame_rate ());
252 Player::transform_image_subtitles (list<ImageSubtitle> subs) const
254 list<PositionImage> all;
256 for (list<ImageSubtitle>::const_iterator i = subs.begin(); i != subs.end(); ++i) {
261 /* We will scale the subtitle up to fit _video_container_size */
262 dcp::Size scaled_size (i->rectangle.width * _video_container_size.width, i->rectangle.height * _video_container_size.height);
264 /* Then we need a corrective translation, consisting of two parts:
266 * 1. that which is the result of the scaling of the subtitle by _video_container_size; this will be
267 * rect.x * _video_container_size.width and rect.y * _video_container_size.height.
269 * 2. that to shift the origin of the scale by subtitle_scale to the centre of the subtitle; this will be
270 * (width_before_subtitle_scale * (1 - subtitle_x_scale) / 2) and
271 * (height_before_subtitle_scale * (1 - subtitle_y_scale) / 2).
273 * Combining these two translations gives these expressions.
280 dcp::YUV_TO_RGB_REC601,
281 i->image->pixel_format (),
286 lrint (_video_container_size.width * i->rectangle.x),
287 lrint (_video_container_size.height * i->rectangle.y)
296 shared_ptr<PlayerVideo>
297 Player::black_player_video_frame () const
299 return shared_ptr<PlayerVideo> (
301 shared_ptr<const ImageProxy> (new RawImageProxy (_black_image)),
304 _video_container_size,
305 _video_container_size,
308 PresetColourConversion::all().front().conversion
314 Player::dcp_to_content_video (shared_ptr<const Piece> piece, DCPTime t) const
316 DCPTime s = t - piece->content->position ();
317 s = min (piece->content->length_after_trim(), s);
318 s = max (DCPTime(), s + DCPTime (piece->content->trim_start(), piece->frc));
320 /* It might seem more logical here to convert s to a ContentTime (using the FrameRateChange)
321 then convert that ContentTime to frames at the content's rate. However this fails for
322 situations like content at 29.9978733fps, DCP at 30fps. The accuracy of the Time type is not
323 enough to distinguish between the two with low values of time (e.g. 3200 in Time units).
325 Instead we convert the DCPTime using the DCP video rate then account for any skip/repeat.
327 return s.frames_floor (piece->frc.dcp) / piece->frc.factor ();
331 Player::content_video_to_dcp (shared_ptr<const Piece> piece, Frame f) const
333 /* See comment in dcp_to_content_video */
334 DCPTime const d = DCPTime::from_frames (f * piece->frc.factor(), piece->frc.dcp) - DCPTime (piece->content->trim_start (), piece->frc);
335 return max (DCPTime (), d + piece->content->position ());
339 Player::dcp_to_resampled_audio (shared_ptr<const Piece> piece, DCPTime t) const
341 DCPTime s = t - piece->content->position ();
342 s = min (piece->content->length_after_trim(), s);
343 /* See notes in dcp_to_content_video */
344 return max (DCPTime (), DCPTime (piece->content->trim_start (), piece->frc) + s).frames_floor (_film->audio_frame_rate ());
348 Player::resampled_audio_to_dcp (shared_ptr<const Piece> piece, Frame f) const
350 /* See comment in dcp_to_content_video */
351 DCPTime const d = DCPTime::from_frames (f, _film->audio_frame_rate()) - DCPTime (piece->content->trim_start (), piece->frc);
352 return max (DCPTime (), d + piece->content->position ());
356 Player::dcp_to_content_time (shared_ptr<const Piece> piece, DCPTime t) const
358 DCPTime s = t - piece->content->position ();
359 s = min (piece->content->length_after_trim(), s);
360 return max (ContentTime (), ContentTime (s, piece->frc) + piece->content->trim_start());
364 Player::content_time_to_dcp (shared_ptr<const Piece> piece, ContentTime t) const
366 return max (DCPTime (), DCPTime (t - piece->content->trim_start(), piece->frc) + piece->content->position());
369 list<shared_ptr<Font> >
370 Player::get_subtitle_fonts ()
372 if (!_have_valid_pieces) {
376 list<shared_ptr<Font> > fonts;
377 BOOST_FOREACH (shared_ptr<Piece>& p, _pieces) {
378 if (p->content->subtitle) {
379 /* XXX: things may go wrong if there are duplicate font IDs
380 with different font files.
382 list<shared_ptr<Font> > f = p->content->subtitle->fonts ();
383 copy (f.begin(), f.end(), back_inserter (fonts));
390 /** Set this player never to produce any video data */
392 Player::set_ignore_video ()
394 _ignore_video = true;
397 /** Set this player never to produce any audio data */
399 Player::set_ignore_audio ()
401 _ignore_audio = true;
404 /** Set whether or not this player should always burn text subtitles into the image,
405 * regardless of the content settings.
406 * @param burn true to always burn subtitles, false to obey content settings.
409 Player::set_always_burn_subtitles (bool burn)
411 _always_burn_subtitles = burn;
418 _have_valid_pieces = false;
422 Player::set_play_referenced ()
424 _play_referenced = true;
425 _have_valid_pieces = false;
428 list<ReferencedReelAsset>
429 Player::get_reel_assets ()
431 list<ReferencedReelAsset> a;
433 BOOST_FOREACH (shared_ptr<Content> i, _playlist->content ()) {
434 shared_ptr<DCPContent> j = dynamic_pointer_cast<DCPContent> (i);
439 scoped_ptr<DCPDecoder> decoder;
441 decoder.reset (new DCPDecoder (j, _film->log()));
447 BOOST_FOREACH (shared_ptr<dcp::Reel> k, decoder->reels()) {
449 DCPOMATIC_ASSERT (j->video_frame_rate ());
450 double const cfr = j->video_frame_rate().get();
451 Frame const trim_start = j->trim_start().frames_round (cfr);
452 Frame const trim_end = j->trim_end().frames_round (cfr);
453 int const ffr = _film->video_frame_rate ();
455 DCPTime const from = i->position() + DCPTime::from_frames (offset, _film->video_frame_rate());
456 if (j->reference_video ()) {
457 shared_ptr<dcp::ReelAsset> ra = k->main_picture ();
458 DCPOMATIC_ASSERT (ra);
459 ra->set_entry_point (ra->entry_point() + trim_start);
460 ra->set_duration (ra->duration() - trim_start - trim_end);
462 ReferencedReelAsset (ra, DCPTimePeriod (from, from + DCPTime::from_frames (ra->duration(), ffr)))
466 if (j->reference_audio ()) {
467 shared_ptr<dcp::ReelAsset> ra = k->main_sound ();
468 DCPOMATIC_ASSERT (ra);
469 ra->set_entry_point (ra->entry_point() + trim_start);
470 ra->set_duration (ra->duration() - trim_start - trim_end);
472 ReferencedReelAsset (ra, DCPTimePeriod (from, from + DCPTime::from_frames (ra->duration(), ffr)))
476 if (j->reference_subtitle ()) {
477 shared_ptr<dcp::ReelAsset> ra = k->main_subtitle ();
478 DCPOMATIC_ASSERT (ra);
479 ra->set_entry_point (ra->entry_point() + trim_start);
480 ra->set_duration (ra->duration() - trim_start - trim_end);
482 ReferencedReelAsset (ra, DCPTimePeriod (from, from + DCPTime::from_frames (ra->duration(), ffr)))
486 /* Assume that main picture duration is the length of the reel */
487 offset += k->main_picture()->duration ();
494 list<shared_ptr<Piece> >
495 Player::overlaps (DCPTime from, DCPTime to, boost::function<bool (Content *)> valid)
497 if (!_have_valid_pieces) {
501 list<shared_ptr<Piece> > overlaps;
502 BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
503 if (valid (i->content.get ()) && i->content->position() < to && i->content->end() > from) {
504 overlaps.push_back (i);
514 if (!_have_valid_pieces) {
518 shared_ptr<Piece> earliest;
519 DCPTime earliest_content;
521 BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
523 DCPTime const t = i->content->position() + DCPTime (i->decoder->position(), i->frc);
524 if (!earliest || t < earliest_content) {
525 earliest_content = t;
532 /* No more content; fill up to the length of our playlist with silent black */
534 DCPTime const length = _playlist->length ();
536 DCPTime const frame = DCPTime::from_frames (1, _film->video_frame_rate());
539 from = _last_time.get() + frame;
541 for (DCPTime i = from; i < length; i += frame) {
542 Video (black_player_video_frame (), i);
545 DCPTime t = _last_audio_time;
547 DCPTime block = min (DCPTime::from_seconds (0.5), length - t);
548 shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), block.frames_round(_film->audio_frame_rate())));
549 silence->make_silent ();
557 earliest->done = earliest->decoder->pass ();
559 /* Emit any audio that is ready */
561 DCPTime pull_from = _playlist->length ();
562 for (map<AudioStreamPtr, StreamState>::const_iterator i = _stream_states.begin(); i != _stream_states.end(); ++i) {
563 if (!i->second.piece->done && i->second.last_push_end < pull_from) {
564 pull_from = i->second.last_push_end;
568 // cout << "PULL " << to_string(pull_from) << "\n";
569 pair<shared_ptr<AudioBuffers>, DCPTime> audio = _audio_merger.pull (pull_from);
570 if (audio.first->frames() > 0) {
571 DCPOMATIC_ASSERT (audio.second >= _last_audio_time);
572 DCPTime t = _last_audio_time;
573 while (t < audio.second) {
574 /* Silence up to the time of this new audio */
575 DCPTime block = min (DCPTime::from_seconds (0.5), audio.second - t);
576 shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), block.frames_round(_film->audio_frame_rate())));
577 silence->make_silent ();
582 Audio (audio.first, audio.second);
583 _last_audio_time = audio.second + DCPTime::from_frames(audio.first->frames(), _film->audio_frame_rate());
590 Player::video (weak_ptr<Piece> wp, ContentVideo video)
592 shared_ptr<Piece> piece = wp.lock ();
597 /* Time and period of the frame we will emit */
598 DCPTime const time = content_video_to_dcp (piece, video.frame);
599 DCPTimePeriod const period (time, time + DCPTime::from_frames (1, _film->video_frame_rate()));
601 /* Discard if it's outside the content's period */
602 if (time < piece->content->position() || time >= piece->content->end()) {
606 /* Get any subtitles */
608 optional<PositionImage> subtitles;
610 for (list<pair<PlayerSubtitles, DCPTimePeriod> >::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
612 if (!i->second.overlap (period)) {
616 list<PositionImage> sub_images;
618 /* Image subtitles */
619 list<PositionImage> c = transform_image_subtitles (i->first.image);
620 copy (c.begin(), c.end(), back_inserter (sub_images));
622 /* Text subtitles (rendered to an image) */
623 if (!i->first.text.empty ()) {
624 list<PositionImage> s = render_subtitles (i->first.text, i->first.fonts, _video_container_size, time);
625 copy (s.begin (), s.end (), back_inserter (sub_images));
628 if (!sub_images.empty ()) {
629 subtitles = merge (sub_images);
636 /* XXX: this may not work for 3D */
637 DCPTime const frame = DCPTime::from_frames (1, _film->video_frame_rate());
638 for (DCPTime i = _last_time.get() + frame; i < time; i += frame) {
639 if (_playlist->video_content_at(i) && _last_video) {
640 Video (shared_ptr<PlayerVideo> (new PlayerVideo (*_last_video)), i);
642 Video (black_player_video_frame (), i);
650 piece->content->video->crop (),
651 piece->content->video->fade (video.frame),
652 piece->content->video->scale().size (
653 piece->content->video, _video_container_size, _film->frame_size ()
655 _video_container_size,
658 piece->content->video->colour_conversion ()
663 _last_video->set_subtitle (subtitles.get ());
668 Video (_last_video, *_last_time);
670 /* Discard any subtitles we no longer need */
672 for (list<pair<PlayerSubtitles, DCPTimePeriod> >::iterator i = _subtitles.begin (); i != _subtitles.end(); ) {
673 list<pair<PlayerSubtitles, DCPTimePeriod> >::iterator tmp = i;
676 if (i->second.to < time) {
677 _subtitles.erase (i);
685 Player::audio (weak_ptr<Piece> wp, AudioStreamPtr stream, ContentAudio content_audio)
687 shared_ptr<Piece> piece = wp.lock ();
692 shared_ptr<AudioContent> content = piece->content->audio;
693 DCPOMATIC_ASSERT (content);
696 if (content->gain() != 0) {
697 shared_ptr<AudioBuffers> gain (new AudioBuffers (content_audio.audio));
698 gain->apply_gain (content->gain ());
699 content_audio.audio = gain;
703 if (stream->frame_rate() != content->resampled_frame_rate()) {
704 shared_ptr<Resampler> r = resampler (content, stream, true);
705 pair<shared_ptr<const AudioBuffers>, Frame> ro = r->run (content_audio.audio, content_audio.frame);
706 content_audio.audio = ro.first;
707 content_audio.frame = ro.second;
710 /* XXX: end-trimming used to be checked here */
712 /* Compute time in the DCP */
713 DCPTime time = resampled_audio_to_dcp (piece, content_audio.frame) + DCPTime::from_seconds (content->delay() / 1000.0);
715 /* Remove anything that comes before the start of the content */
716 if (time < piece->content->position()) {
717 DCPTime const discard_time = piece->content->position() - time;
718 Frame discard_frames = discard_time.frames_round(_film->audio_frame_rate());
719 Frame remaining_frames = content_audio.audio->frames() - discard_frames;
720 if (remaining_frames <= 0) {
721 /* This audio is entirely discarded */
724 shared_ptr<AudioBuffers> cut (new AudioBuffers (content_audio.audio->channels(), remaining_frames));
725 cut->copy_from (content_audio.audio.get(), remaining_frames, discard_frames, 0);
726 content_audio.audio = cut;
727 time += discard_time;
731 shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), content_audio.audio->frames()));
732 dcp_mapped->make_silent ();
734 AudioMapping map = stream->mapping ();
735 for (int i = 0; i < map.input_channels(); ++i) {
736 for (int j = 0; j < dcp_mapped->channels(); ++j) {
737 if (map.get (i, static_cast<dcp::Channel> (j)) > 0) {
738 dcp_mapped->accumulate_channel (
739 content_audio.audio.get(),
741 static_cast<dcp::Channel> (j),
742 map.get (i, static_cast<dcp::Channel> (j))
748 content_audio.audio = dcp_mapped;
750 if (_audio_processor) {
751 content_audio.audio = _audio_processor->run (content_audio.audio, _film->audio_channels ());
754 // cout << "PUSH " << content_audio.audio->frames() << " @ " << to_string(time) << "\n";
755 _audio_merger.push (content_audio.audio, time);
757 DCPOMATIC_ASSERT (_stream_states.find (stream) != _stream_states.end ());
758 _stream_states[stream].last_push_end = time + DCPTime::from_frames (content_audio.audio->frames(), _film->audio_frame_rate());
762 Player::image_subtitle (weak_ptr<Piece> wp, ContentImageSubtitle subtitle)
764 shared_ptr<Piece> piece = wp.lock ();
769 /* Apply content's subtitle offsets */
770 subtitle.sub.rectangle.x += piece->content->subtitle->x_offset ();
771 subtitle.sub.rectangle.y += piece->content->subtitle->y_offset ();
773 /* Apply content's subtitle scale */
774 subtitle.sub.rectangle.width *= piece->content->subtitle->x_scale ();
775 subtitle.sub.rectangle.height *= piece->content->subtitle->y_scale ();
777 /* Apply a corrective translation to keep the subtitle centred after that scale */
778 subtitle.sub.rectangle.x -= subtitle.sub.rectangle.width * (piece->content->subtitle->x_scale() - 1);
779 subtitle.sub.rectangle.y -= subtitle.sub.rectangle.height * (piece->content->subtitle->y_scale() - 1);
782 ps.image.push_back (subtitle.sub);
783 DCPTimePeriod period (content_time_to_dcp (piece, subtitle.period().from), content_time_to_dcp (piece, subtitle.period().to));
785 if (piece->content->subtitle->use() && (piece->content->subtitle->burn() || _always_burn_subtitles)) {
786 _subtitles.push_back (make_pair (ps, period));
788 Subtitle (ps, period);
793 Player::text_subtitle (weak_ptr<Piece> wp, ContentTextSubtitle subtitle)
795 shared_ptr<Piece> piece = wp.lock ();
801 DCPTimePeriod const period (content_time_to_dcp (piece, subtitle.period().from), content_time_to_dcp (piece, subtitle.period().to));
803 BOOST_FOREACH (dcp::SubtitleString s, subtitle.subs) {
804 s.set_h_position (s.h_position() + piece->content->subtitle->x_offset ());
805 s.set_v_position (s.v_position() + piece->content->subtitle->y_offset ());
806 float const xs = piece->content->subtitle->x_scale();
807 float const ys = piece->content->subtitle->y_scale();
808 float size = s.size();
810 /* Adjust size to express the common part of the scaling;
811 e.g. if xs = ys = 0.5 we scale size by 2.
813 if (xs > 1e-5 && ys > 1e-5) {
814 size *= 1 / min (1 / xs, 1 / ys);
818 /* Then express aspect ratio changes */
819 if (fabs (1.0 - xs / ys) > dcp::ASPECT_ADJUST_EPSILON) {
820 s.set_aspect_adjust (xs / ys);
823 s.set_in (dcp::Time(period.from.seconds(), 1000));
824 s.set_out (dcp::Time(period.to.seconds(), 1000));
825 ps.text.push_back (SubtitleString (s, piece->content->subtitle->outline_width()));
826 ps.add_fonts (piece->content->subtitle->fonts ());
829 if (piece->content->subtitle->use() && (piece->content->subtitle->burn() || _always_burn_subtitles)) {
830 _subtitles.push_back (make_pair (ps, period));
832 Subtitle (ps, period);
837 Player::seek (DCPTime time, bool accurate)
839 BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
840 if (i->content->position() <= time && time < i->content->end()) {
841 i->decoder->seek (dcp_to_content_time (i, time), accurate);
847 _last_time = time - DCPTime::from_frames (1, _film->video_frame_rate ());
849 _last_time = optional<DCPTime> ();
853 shared_ptr<Resampler>
854 Player::resampler (shared_ptr<const AudioContent> content, AudioStreamPtr stream, bool create)
856 ResamplerMap::const_iterator i = _resamplers.find (make_pair (content, stream));
857 if (i != _resamplers.end ()) {
862 return shared_ptr<Resampler> ();
866 "Creating new resampler from %1 to %2 with %3 channels",
867 stream->frame_rate(),
868 content->resampled_frame_rate(),
872 shared_ptr<Resampler> r (
873 new Resampler (stream->frame_rate(), content->resampled_frame_rate(), stream->channels())
876 _resamplers[make_pair(content, stream)] = r;