/*
- Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2016 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "player.h"
#include "film.h"
-#include "ffmpeg_decoder.h"
#include "audio_buffers.h"
-#include "ffmpeg_content.h"
-#include "image_decoder.h"
-#include "image_content.h"
-#include "sndfile_decoder.h"
-#include "sndfile_content.h"
-#include "subtitle_content.h"
-#include "subrip_decoder.h"
-#include "subrip_content.h"
+#include "content_audio.h"
#include "dcp_content.h"
#include "job.h"
#include "image.h"
#include "content_video.h"
#include "player_video.h"
#include "frame_rate_change.h"
-#include "dcp_content.h"
-#include "dcp_decoder.h"
-#include "dcp_subtitle_content.h"
-#include "dcp_subtitle_decoder.h"
#include "audio_processor.h"
#include "playlist.h"
+#include "referenced_reel_asset.h"
+#include "decoder_factory.h"
+#include "decoder.h"
+#include "video_decoder.h"
+#include "audio_decoder.h"
+#include "subtitle_content.h"
+#include "subtitle_decoder.h"
+#include "ffmpeg_content.h"
+#include "audio_content.h"
+#include "content_subtitle.h"
+#include "dcp_decoder.h"
+#include "image_decoder.h"
+#include <dcp/reel.h>
+#include <dcp/reel_sound_asset.h>
+#include <dcp/reel_subtitle_asset.h>
+#include <dcp/reel_picture_asset.h>
#include <boost/foreach.hpp>
#include <stdint.h>
#include <algorithm>
+#include <iostream>
#include "i18n.h"
-#define LOG_GENERAL(...) _film->log()->log (String::compose (__VA_ARGS__), Log::TYPE_GENERAL);
+#define LOG_GENERAL(...) _film->log()->log (String::compose (__VA_ARGS__), LogEntry::TYPE_GENERAL);
using std::list;
using std::cout;
using boost::weak_ptr;
using boost::dynamic_pointer_cast;
using boost::optional;
+using boost::scoped_ptr;
Player::Player (shared_ptr<const Film> film, shared_ptr<const Playlist> playlist)
: _film (film)
, _playlist (playlist)
, _have_valid_pieces (false)
, _ignore_video (false)
+ , _ignore_audio (false)
, _always_burn_subtitles (false)
+ , _fast (false)
+ , _play_referenced (false)
+ , _audio_merger (_film->audio_channels(), _film->audio_frame_rate())
{
_film_changed_connection = _film->Changed.connect (bind (&Player::film_changed, this, _1));
_playlist_changed_connection = _playlist->Changed.connect (bind (&Player::playlist_changed, this));
void
Player::setup_pieces ()
{
- list<shared_ptr<Piece> > old_pieces = _pieces;
_pieces.clear ();
BOOST_FOREACH (shared_ptr<Content> i, _playlist->content ()) {
continue;
}
- shared_ptr<Decoder> decoder;
- optional<FrameRateChange> frc;
-
- /* Work out a FrameRateChange for the best overlap video for this content, in case we need it below */
- DCPTime best_overlap_t;
- shared_ptr<VideoContent> best_overlap;
- BOOST_FOREACH (shared_ptr<Content> j, _playlist->content ()) {
- shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (j);
- if (!vc) {
- continue;
- }
+ shared_ptr<Decoder> decoder = decoder_factory (i, _film->log());
+ FrameRateChange frc (i->active_video_frame_rate(), _film->video_frame_rate());
- DCPTime const overlap = max (vc->position(), i->position()) - min (vc->end(), i->end());
- if (overlap > best_overlap_t) {
- best_overlap = vc;
- best_overlap_t = overlap;
- }
+ if (!decoder) {
+ /* Not something that we can decode; e.g. Atmos content */
+ continue;
}
- optional<FrameRateChange> best_overlap_frc;
- if (best_overlap) {
- best_overlap_frc = FrameRateChange (best_overlap->video_frame_rate(), _film->video_frame_rate ());
- } else {
- /* No video overlap; e.g. if the DCP is just audio */
- best_overlap_frc = FrameRateChange (_film->video_frame_rate(), _film->video_frame_rate ());
+ if (decoder->video && _ignore_video) {
+ decoder->video->set_ignore ();
}
- /* FFmpeg */
- shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (i);
- if (fc) {
- decoder.reset (new FFmpegDecoder (fc, _film->log()));
- frc = FrameRateChange (fc->video_frame_rate(), _film->video_frame_rate());
+ if (decoder->audio && _ignore_audio) {
+ decoder->audio->set_ignore ();
}
- shared_ptr<const DCPContent> dc = dynamic_pointer_cast<const DCPContent> (i);
- if (dc) {
- decoder.reset (new DCPDecoder (dc));
- frc = FrameRateChange (dc->video_frame_rate(), _film->video_frame_rate());
+ if (decoder->audio && _fast) {
+ decoder->audio->set_fast ();
}
- /* ImageContent */
- shared_ptr<const ImageContent> ic = dynamic_pointer_cast<const ImageContent> (i);
- if (ic) {
- /* See if we can re-use an old ImageDecoder */
- for (list<shared_ptr<Piece> >::const_iterator j = old_pieces.begin(); j != old_pieces.end(); ++j) {
- shared_ptr<ImageDecoder> imd = dynamic_pointer_cast<ImageDecoder> ((*j)->decoder);
- if (imd && imd->content() == ic) {
- decoder = imd;
- }
- }
-
- if (!decoder) {
- decoder.reset (new ImageDecoder (ic));
- }
-
- frc = FrameRateChange (ic->video_frame_rate(), _film->video_frame_rate());
+ shared_ptr<DCPDecoder> dcp = dynamic_pointer_cast<DCPDecoder> (decoder);
+ if (dcp && _play_referenced) {
+ dcp->set_decode_referenced ();
}
- /* SndfileContent */
- shared_ptr<const SndfileContent> sc = dynamic_pointer_cast<const SndfileContent> (i);
- if (sc) {
- decoder.reset (new SndfileDecoder (sc));
- frc = best_overlap_frc;
- }
+ shared_ptr<Piece> piece (new Piece (i, decoder, frc));
+ _pieces.push_back (piece);
- /* SubRipContent */
- shared_ptr<const SubRipContent> rc = dynamic_pointer_cast<const SubRipContent> (i);
- if (rc) {
- decoder.reset (new SubRipDecoder (rc));
- frc = best_overlap_frc;
+ if (decoder->video) {
+ decoder->video->Data.connect (bind (&Player::video, this, weak_ptr<Piece> (piece), _1));
}
- /* DCPSubtitleContent */
- shared_ptr<const DCPSubtitleContent> dsc = dynamic_pointer_cast<const DCPSubtitleContent> (i);
- if (dsc) {
- decoder.reset (new DCPSubtitleDecoder (dsc));
- frc = best_overlap_frc;
+ if (decoder->audio) {
+ decoder->audio->Data.connect (bind (&Player::audio, this, weak_ptr<Piece> (piece), _1, _2));
}
- shared_ptr<VideoDecoder> vd = dynamic_pointer_cast<VideoDecoder> (decoder);
- if (vd && _ignore_video) {
- vd->set_ignore_video ();
+ if (decoder->subtitle) {
+ decoder->subtitle->ImageData.connect (bind (&Player::image_subtitle, this, weak_ptr<Piece> (piece), _1));
+ decoder->subtitle->TextData.connect (bind (&Player::text_subtitle, this, weak_ptr<Piece> (piece), _1));
}
-
- _pieces.push_back (shared_ptr<Piece> (new Piece (i, decoder, frc.get ())));
}
_have_valid_pieces = true;
property == ContentProperty::TRIM_START ||
property == ContentProperty::TRIM_END ||
property == ContentProperty::PATH ||
- property == VideoContentProperty::VIDEO_FRAME_TYPE ||
- property == DCPContentProperty::CAN_BE_PLAYED
+ property == VideoContentProperty::FRAME_TYPE ||
+ property == DCPContentProperty::NEEDS_ASSETS ||
+ property == DCPContentProperty::NEEDS_KDM ||
+ property == SubtitleContentProperty::COLOUR ||
+ property == SubtitleContentProperty::OUTLINE ||
+ property == SubtitleContentProperty::SHADOW ||
+ property == SubtitleContentProperty::EFFECT_COLOUR ||
+ property == FFmpegContentProperty::SUBTITLE_STREAM ||
+ property == VideoContentProperty::COLOUR_CONVERSION
) {
_have_valid_pieces = false;
Changed (frequent);
} else if (
- property == SubtitleContentProperty::USE_SUBTITLES ||
- property == SubtitleContentProperty::SUBTITLE_X_OFFSET ||
- property == SubtitleContentProperty::SUBTITLE_Y_OFFSET ||
- property == SubtitleContentProperty::SUBTITLE_X_SCALE ||
- property == SubtitleContentProperty::SUBTITLE_Y_SCALE ||
- property == VideoContentProperty::VIDEO_CROP ||
- property == VideoContentProperty::VIDEO_SCALE ||
- property == VideoContentProperty::VIDEO_FRAME_RATE ||
- property == VideoContentProperty::VIDEO_FADE_IN ||
- property == VideoContentProperty::VIDEO_FADE_OUT
+ property == SubtitleContentProperty::LINE_SPACING ||
+ property == SubtitleContentProperty::OUTLINE_WIDTH ||
+ property == SubtitleContentProperty::Y_SCALE ||
+ property == SubtitleContentProperty::FADE_IN ||
+ property == SubtitleContentProperty::FADE_OUT ||
+ property == ContentProperty::VIDEO_FRAME_RATE ||
+ property == SubtitleContentProperty::USE ||
+ property == SubtitleContentProperty::X_OFFSET ||
+ property == SubtitleContentProperty::Y_OFFSET ||
+ property == SubtitleContentProperty::X_SCALE ||
+ property == SubtitleContentProperty::FONTS ||
+ property == VideoContentProperty::CROP ||
+ property == VideoContentProperty::SCALE ||
+ property == VideoContentProperty::FADE_IN ||
+ property == VideoContentProperty::FADE_OUT
) {
Changed (frequent);
{
_video_container_size = s;
- _black_image.reset (new Image (PIX_FMT_RGB24, _video_container_size, true));
+ _black_image.reset (new Image (AV_PIX_FMT_RGB24, _video_container_size, true));
_black_image->make_black ();
}
last time we were run.
*/
- if (p == Film::CONTAINER || p == Film::VIDEO_FRAME_RATE) {
+ if (p == Film::CONTAINER) {
+ Changed (false);
+ } else if (p == Film::VIDEO_FRAME_RATE) {
+ /* Pieces contain a FrameRateChange which contains the DCP frame rate,
+ so we need new pieces here.
+ */
+ _have_valid_pieces = false;
Changed (false);
} else if (p == Film::AUDIO_PROCESSOR) {
if (_film->audio_processor ()) {
scaled_size,
dcp::YUV_TO_RGB_REC601,
i->image->pixel_format (),
- true
+ true,
+ _fast
),
Position<int> (
- rint (_video_container_size.width * i->rectangle.x),
- rint (_video_container_size.height * i->rectangle.y)
+ lrint (_video_container_size.width * i->rectangle.x),
+ lrint (_video_container_size.height * i->rectangle.y)
)
)
);
);
}
-/** @return All PlayerVideos at the given time (there may be two frames for 3D) */
-list<shared_ptr<PlayerVideo> >
-Player::get_video (DCPTime time, bool accurate)
+Frame
+Player::dcp_to_content_video (shared_ptr<const Piece> piece, DCPTime t) const
+{
+ DCPTime s = t - piece->content->position ();
+ s = min (piece->content->length_after_trim(), s);
+ s = max (DCPTime(), s + DCPTime (piece->content->trim_start(), piece->frc));
+
+ /* It might seem more logical here to convert s to a ContentTime (using the FrameRateChange)
+ then convert that ContentTime to frames at the content's rate. However this fails for
+ situations like content at 29.9978733fps, DCP at 30fps. The accuracy of the Time type is not
+ enough to distinguish between the two with low values of time (e.g. 3200 in Time units).
+
+ Instead we convert the DCPTime using the DCP video rate then account for any skip/repeat.
+ */
+ return s.frames_floor (piece->frc.dcp) / piece->frc.factor ();
+}
+
+DCPTime
+Player::content_video_to_dcp (shared_ptr<const Piece> piece, Frame f) const
+{
+ /* See comment in dcp_to_content_video */
+ DCPTime const d = DCPTime::from_frames (f * piece->frc.factor(), piece->frc.dcp) - DCPTime (piece->content->trim_start (), piece->frc);
+ return max (DCPTime (), d + piece->content->position ());
+}
+
+Frame
+Player::dcp_to_resampled_audio (shared_ptr<const Piece> piece, DCPTime t) const
+{
+ DCPTime s = t - piece->content->position ();
+ s = min (piece->content->length_after_trim(), s);
+ /* See notes in dcp_to_content_video */
+ return max (DCPTime (), DCPTime (piece->content->trim_start (), piece->frc) + s).frames_floor (_film->audio_frame_rate ());
+}
+
+DCPTime
+Player::resampled_audio_to_dcp (shared_ptr<const Piece> piece, Frame f) const
+{
+ /* See comment in dcp_to_content_video */
+ DCPTime const d = DCPTime::from_frames (f, _film->audio_frame_rate()) - DCPTime (piece->content->trim_start (), piece->frc);
+ return max (DCPTime (), d + piece->content->position ());
+}
+
+ContentTime
+Player::dcp_to_content_time (shared_ptr<const Piece> piece, DCPTime t) const
+{
+ DCPTime s = t - piece->content->position ();
+ s = min (piece->content->length_after_trim(), s);
+ return max (ContentTime (), ContentTime (s, piece->frc) + piece->content->trim_start());
+}
+
+DCPTime
+Player::content_time_to_dcp (shared_ptr<const Piece> piece, ContentTime t) const
+{
+ return max (DCPTime (), DCPTime (t - piece->content->trim_start(), piece->frc) + piece->content->position());
+}
+
+list<shared_ptr<Font> >
+Player::get_subtitle_fonts ()
{
if (!_have_valid_pieces) {
setup_pieces ();
}
- /* Find subtitles for possible burn-in */
+ list<shared_ptr<Font> > fonts;
+ BOOST_FOREACH (shared_ptr<Piece>& p, _pieces) {
+ if (p->content->subtitle) {
+ /* XXX: things may go wrong if there are duplicate font IDs
+ with different font files.
+ */
+ list<shared_ptr<Font> > f = p->content->subtitle->fonts ();
+ copy (f.begin(), f.end(), back_inserter (fonts));
+ }
+ }
- PlayerSubtitles ps = get_subtitles (time, DCPTime::from_frames (1, _film->video_frame_rate ()), false, true);
+ return fonts;
+}
- list<PositionImage> sub_images;
+/** Set this player never to produce any video data */
+void
+Player::set_ignore_video ()
+{
+ _ignore_video = true;
+}
- /* Image subtitles */
- list<PositionImage> c = transform_image_subtitles (ps.image);
- copy (c.begin(), c.end(), back_inserter (sub_images));
+/** Set this player never to produce any audio data */
+void
+Player::set_ignore_audio ()
+{
+ _ignore_audio = true;
+}
- /* Text subtitles (rendered to an image) */
- if (!ps.text.empty ()) {
- list<PositionImage> s = render_subtitles (ps.text, _video_container_size);
- copy (s.begin (), s.end (), back_inserter (sub_images));
- }
+/** Set whether or not this player should always burn text subtitles into the image,
+ * regardless of the content settings.
+ * @param burn true to always burn subtitles, false to obey content settings.
+ */
+void
+Player::set_always_burn_subtitles (bool burn)
+{
+ _always_burn_subtitles = burn;
+}
- optional<PositionImage> subtitles;
- if (!sub_images.empty ()) {
- subtitles = merge (sub_images);
- }
+void
+Player::set_fast ()
+{
+ _fast = true;
+ _have_valid_pieces = false;
+}
- /* Find video */
+void
+Player::set_play_referenced ()
+{
+ _play_referenced = true;
+ _have_valid_pieces = false;
+}
- list<shared_ptr<Piece> > ov = overlaps<VideoContent> (
- time,
- time + DCPTime::from_frames (1, _film->video_frame_rate ()) - DCPTime::delta()
- );
+list<ReferencedReelAsset>
+Player::get_reel_assets ()
+{
+ list<ReferencedReelAsset> a;
+
+ BOOST_FOREACH (shared_ptr<Content> i, _playlist->content ()) {
+ shared_ptr<DCPContent> j = dynamic_pointer_cast<DCPContent> (i);
+ if (!j) {
+ continue;
+ }
- list<shared_ptr<PlayerVideo> > pvf;
+ scoped_ptr<DCPDecoder> decoder;
+ try {
+ decoder.reset (new DCPDecoder (j, _film->log()));
+ } catch (...) {
+ return a;
+ }
- if (ov.empty ()) {
- /* No video content at this time */
- pvf.push_back (black_player_video_frame (time));
- } else {
- /* Decide which pieces of content to use */
- list<shared_ptr<Piece> > ov_to_use;
-
- /* Always use the last one */
- list<shared_ptr<Piece> >::reverse_iterator i = ov.rbegin ();
- ov_to_use.push_back (*i);
- VideoFrameType const first_type = dynamic_pointer_cast<VideoContent> ((*i)->content)->video_frame_type ();
-
- ++i;
- if (i != ov.rend ()) {
- shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> ((*i)->content);
- /* Use the second to last if it's the other part of a 3D content pair */
- if (
- (first_type == VIDEO_FRAME_TYPE_3D_LEFT && vc->video_frame_type() == VIDEO_FRAME_TYPE_3D_RIGHT) ||
- (first_type == VIDEO_FRAME_TYPE_3D_RIGHT && vc->video_frame_type() == VIDEO_FRAME_TYPE_3D_LEFT)
- ) {
- /* Other part of a pair of 3D content */
- ov_to_use.push_back (*i);
+ int64_t offset = 0;
+ BOOST_FOREACH (shared_ptr<dcp::Reel> k, decoder->reels()) {
+
+ DCPOMATIC_ASSERT (j->video_frame_rate ());
+ double const cfr = j->video_frame_rate().get();
+ Frame const trim_start = j->trim_start().frames_round (cfr);
+ Frame const trim_end = j->trim_end().frames_round (cfr);
+ int const ffr = _film->video_frame_rate ();
+
+ DCPTime const from = i->position() + DCPTime::from_frames (offset, _film->video_frame_rate());
+ if (j->reference_video ()) {
+ shared_ptr<dcp::ReelAsset> ra = k->main_picture ();
+ DCPOMATIC_ASSERT (ra);
+ ra->set_entry_point (ra->entry_point() + trim_start);
+ ra->set_duration (ra->duration() - trim_start - trim_end);
+ a.push_back (
+ ReferencedReelAsset (ra, DCPTimePeriod (from, from + DCPTime::from_frames (ra->duration(), ffr)))
+ );
}
- }
- BOOST_FOREACH (shared_ptr<Piece> piece, ov_to_use) {
- shared_ptr<VideoDecoder> decoder = dynamic_pointer_cast<VideoDecoder> (piece->decoder);
- DCPOMATIC_ASSERT (decoder);
- shared_ptr<VideoContent> video_content = dynamic_pointer_cast<VideoContent> (piece->content);
- DCPOMATIC_ASSERT (video_content);
+ if (j->reference_audio ()) {
+ shared_ptr<dcp::ReelAsset> ra = k->main_sound ();
+ DCPOMATIC_ASSERT (ra);
+ ra->set_entry_point (ra->entry_point() + trim_start);
+ ra->set_duration (ra->duration() - trim_start - trim_end);
+ a.push_back (
+ ReferencedReelAsset (ra, DCPTimePeriod (from, from + DCPTime::from_frames (ra->duration(), ffr)))
+ );
+ }
- list<ContentVideo> content_video = decoder->get_video (dcp_to_content_video (piece, time), accurate);
- if (content_video.empty ()) {
- pvf.push_back (black_player_video_frame (time));
- } else {
- dcp::Size image_size = video_content->scale().size (video_content, _video_container_size, _film->frame_size ());
-
- for (list<ContentVideo>::const_iterator i = content_video.begin(); i != content_video.end(); ++i) {
- pvf.push_back (
- shared_ptr<PlayerVideo> (
- new PlayerVideo (
- i->image,
- content_video_to_dcp (piece, i->frame),
- video_content->crop (),
- video_content->fade (i->frame),
- image_size,
- _video_container_size,
- i->eyes,
- i->part,
- video_content->colour_conversion ()
- )
- )
- );
- }
+ if (j->reference_subtitle ()) {
+ shared_ptr<dcp::ReelAsset> ra = k->main_subtitle ();
+ DCPOMATIC_ASSERT (ra);
+ ra->set_entry_point (ra->entry_point() + trim_start);
+ ra->set_duration (ra->duration() - trim_start - trim_end);
+ a.push_back (
+ ReferencedReelAsset (ra, DCPTimePeriod (from, from + DCPTime::from_frames (ra->duration(), ffr)))
+ );
}
- }
- }
- if (subtitles) {
- BOOST_FOREACH (shared_ptr<PlayerVideo> p, pvf) {
- p->set_subtitle (subtitles.get ());
+ /* Assume that main picture duration is the length of the reel */
+ offset += k->main_picture()->duration ();
}
}
- return pvf;
+ return a;
}
-shared_ptr<AudioBuffers>
-Player::get_audio (DCPTime time, DCPTime length, bool accurate)
+list<shared_ptr<Piece> >
+Player::overlaps (DCPTime from, DCPTime to, boost::function<bool (Content *)> valid)
{
if (!_have_valid_pieces) {
setup_pieces ();
}
- Frame const length_frames = length.frames_round (_film->audio_frame_rate ());
+ list<shared_ptr<Piece> > overlaps;
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ if (valid (i->content.get ()) && i->content->position() < to && i->content->end() > from) {
+ overlaps.push_back (i);
+ }
+ }
- shared_ptr<AudioBuffers> audio (new AudioBuffers (_film->audio_channels(), length_frames));
- audio->make_silent ();
+ return overlaps;
+}
- list<shared_ptr<Piece> > ov = overlaps<AudioContent> (time, time + length);
- if (ov.empty ()) {
- return audio;
+bool
+Player::pass ()
+{
+ if (!_have_valid_pieces) {
+ setup_pieces ();
}
- for (list<shared_ptr<Piece> >::iterator i = ov.begin(); i != ov.end(); ++i) {
+ shared_ptr<Piece> earliest;
+ DCPTime earliest_position;
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ DCPTime const t = i->content->position() + DCPTime (i->decoder->position(), i->frc);
+ if (!earliest || t < earliest_position) {
+ earliest_position = t;
+ earliest = i;
+ }
+ }
- shared_ptr<AudioContent> content = dynamic_pointer_cast<AudioContent> ((*i)->content);
- DCPOMATIC_ASSERT (content);
- shared_ptr<AudioDecoder> decoder = dynamic_pointer_cast<AudioDecoder> ((*i)->decoder);
- DCPOMATIC_ASSERT (decoder);
+ if (!earliest) {
+ return true;
+ }
- /* The time that we should request from the content */
- DCPTime request = time - DCPTime::from_seconds (content->audio_delay() / 1000.0);
- Frame request_frames = length_frames;
- DCPTime offset;
- if (request < DCPTime ()) {
- /* We went off the start of the content, so we will need to offset
- the stuff we get back.
- */
- offset = -request;
- request_frames += request.frames_round (_film->audio_frame_rate ());
- if (request_frames < 0) {
- request_frames = 0;
- }
- request = DCPTime ();
+ cout << "Pass " << earliest->content->path(0) << "\n";
+ earliest->decoder->pass ();
+
+ /* Emit any audio that is ready */
+
+ pair<shared_ptr<AudioBuffers>, DCPTime> audio = _audio_merger.pull (earliest_position);
+ if (audio.first->frames() > 0) {
+ DCPOMATIC_ASSERT (audio.second >= _last_audio_time);
+ DCPTime t = _last_audio_time;
+ while (t < audio.second) {
+ /* Silence up to the time of this new audio */
+ DCPTime block = min (DCPTime::from_seconds (0.5), audio.second - t);
+ shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), block.frames_round(_film->audio_frame_rate())));
+ silence->make_silent ();
+ Audio (silence, t);
+ t += block;
}
- Frame const content_frame = dcp_to_resampled_audio (*i, request);
+ Audio (audio.first, audio.second);
+ _last_audio_time = audio.second;
+ }
- BOOST_FOREACH (AudioStreamPtr j, content->audio_streams ()) {
+ return false;
+}
- if (j->channels() == 0) {
- /* Some content (e.g. DCPs) can have streams with no channels */
- continue;
- }
+void
+Player::video (weak_ptr<Piece> wp, ContentVideo video)
+{
+ shared_ptr<Piece> piece = wp.lock ();
+ if (!piece) {
+ return;
+ }
- /* Audio from this piece's decoder stream (which might be more or less than what we asked for) */
- ContentAudio all = decoder->get_audio (j, content_frame, request_frames, accurate);
+ /* Time and period of the frame we will emit */
+ DCPTime const time = content_video_to_dcp (piece, video.frame.index());
+ DCPTimePeriod const period (time, time + DCPTime::from_frames (1, _film->video_frame_rate()));
- /* Gain */
- if (content->audio_gain() != 0) {
- shared_ptr<AudioBuffers> gain (new AudioBuffers (all.audio));
- gain->apply_gain (content->audio_gain ());
- all.audio = gain;
- }
+ /* Get any subtitles */
- /* Remap channels */
- shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), all.audio->frames()));
- dcp_mapped->make_silent ();
- AudioMapping map = j->mapping ();
- for (int i = 0; i < map.input_channels(); ++i) {
- for (int j = 0; j < _film->audio_channels(); ++j) {
- if (map.get (i, j) > 0) {
- dcp_mapped->accumulate_channel (
- all.audio.get(),
- i,
- j,
- map.get (i, j)
- );
- }
- }
- }
+ optional<PositionImage> subtitles;
- if (_audio_processor) {
- dcp_mapped = _audio_processor->run (dcp_mapped);
- }
+ BOOST_FOREACH (PlayerSubtitles i, _subtitles) {
- all.audio = dcp_mapped;
+ if (!i.period.overlap (period)) {
+ continue;
+ }
+
+ list<PositionImage> sub_images;
+
+ /* Image subtitles */
+ list<PositionImage> c = transform_image_subtitles (i.image);
+ copy (c.begin(), c.end(), back_inserter (sub_images));
- audio->accumulate_frames (
- all.audio.get(),
- content_frame - all.frame,
- offset.frames_round (_film->audio_frame_rate()),
- min (Frame (all.audio->frames()), request_frames)
- );
+ /* Text subtitles (rendered to an image) */
+ if (!i.text.empty ()) {
+ list<PositionImage> s = render_subtitles (i.text, i.fonts, _video_container_size, time);
+ copy (s.begin (), s.end (), back_inserter (sub_images));
+ }
+
+ if (!sub_images.empty ()) {
+ subtitles = merge (sub_images);
}
}
- return audio;
-}
+ /* Fill gaps */
-Frame
-Player::dcp_to_content_video (shared_ptr<const Piece> piece, DCPTime t) const
-{
- shared_ptr<const VideoContent> vc = dynamic_pointer_cast<const VideoContent> (piece->content);
- DCPTime s = t - piece->content->position ();
- s = min (piece->content->length_after_trim(), s);
- /* We're returning a frame index here so we need to floor() the conversion since we want to know the frame
- that contains t, I think
- */
- return max (ContentTime (), ContentTime (s, piece->frc) + piece->content->trim_start ()).frames_floor (vc->video_frame_rate ());
-}
+ if (_last_video_time) {
+ for (DCPTime i = _last_video_time.get(); i < time; i += DCPTime::from_frames (1, _film->video_frame_rate())) {
+ if (_playlist->video_content_at(i) && _last_video) {
+ Video (_last_video->clone (i));
+ } else {
+ Video (black_player_video_frame (i));
+ }
+ }
+ }
-DCPTime
-Player::content_video_to_dcp (shared_ptr<const Piece> piece, Frame f) const
-{
- shared_ptr<const VideoContent> vc = dynamic_pointer_cast<const VideoContent> (piece->content);
- ContentTime const c = ContentTime::from_frames (f, vc->video_frame_rate ()) - piece->content->trim_start ();
- return max (DCPTime (), DCPTime (c, piece->frc) + piece->content->position ());
-}
+ _last_video.reset (
+ new PlayerVideo (
+ video.image,
+ time,
+ piece->content->video->crop (),
+ piece->content->video->fade (video.frame.index()),
+ piece->content->video->scale().size (
+ piece->content->video, _video_container_size, _film->frame_size ()
+ ),
+ _video_container_size,
+ video.frame.eyes(),
+ video.part,
+ piece->content->video->colour_conversion ()
+ )
+ );
-Frame
-Player::dcp_to_resampled_audio (shared_ptr<const Piece> piece, DCPTime t) const
-{
- DCPTime s = t - piece->content->position ();
- s = min (piece->content->length_after_trim(), s);
- /* See notes in dcp_to_content_video */
- return max (DCPTime (), DCPTime (piece->content->trim_start (), piece->frc) + s).frames_floor (_film->audio_frame_rate ());
-}
+ if (subtitles) {
+ _last_video->set_subtitle (subtitles.get ());
+ }
-ContentTime
-Player::dcp_to_content_subtitle (shared_ptr<const Piece> piece, DCPTime t) const
-{
- DCPTime s = t - piece->content->position ();
- s = min (piece->content->length_after_trim(), s);
- return max (ContentTime (), ContentTime (s, piece->frc) + piece->content->trim_start());
-}
+ _last_video_time = time;
-/** @param burnt true to return only subtitles to be burnt, false to return only
- * subtitles that should not be burnt. This parameter will be ignored if
- * _always_burn_subtitles is true; in this case, all subtitles will be returned.
- */
-PlayerSubtitles
-Player::get_subtitles (DCPTime time, DCPTime length, bool starting, bool burnt)
-{
- list<shared_ptr<Piece> > subs = overlaps<SubtitleContent> (time, time + length);
+ cout << "Video @ " << to_string(_last_video_time.get()) << "\n";
+ Video (_last_video);
- PlayerSubtitles ps (time, length);
+ /* Discard any subtitles we no longer need */
- for (list<shared_ptr<Piece> >::const_iterator j = subs.begin(); j != subs.end(); ++j) {
- shared_ptr<SubtitleContent> subtitle_content = dynamic_pointer_cast<SubtitleContent> ((*j)->content);
- if (!subtitle_content->use_subtitles () || (!_always_burn_subtitles && (burnt != subtitle_content->burn_subtitles ()))) {
- continue;
- }
+ for (list<PlayerSubtitles>::iterator i = _subtitles.begin (); i != _subtitles.end(); ) {
+ list<PlayerSubtitles>::iterator tmp = i;
+ ++tmp;
- shared_ptr<SubtitleDecoder> subtitle_decoder = dynamic_pointer_cast<SubtitleDecoder> ((*j)->decoder);
- ContentTime const from = dcp_to_content_subtitle (*j, time);
- /* XXX: this video_frame_rate() should be the rate that the subtitle content has been prepared for */
- ContentTime const to = from + ContentTime::from_frames (1, _film->video_frame_rate ());
+ if (i->period.to < time) {
+ _subtitles.erase (i);
+ }
- list<ContentImageSubtitle> image = subtitle_decoder->get_image_subtitles (ContentTimePeriod (from, to), starting);
- for (list<ContentImageSubtitle>::iterator i = image.begin(); i != image.end(); ++i) {
+ i = tmp;
+ }
+}
- /* Apply content's subtitle offsets */
- i->sub.rectangle.x += subtitle_content->subtitle_x_offset ();
- i->sub.rectangle.y += subtitle_content->subtitle_y_offset ();
+void
+Player::audio (weak_ptr<Piece> wp, AudioStreamPtr stream, ContentAudio content_audio)
+{
+ shared_ptr<Piece> piece = wp.lock ();
+ if (!piece) {
+ return;
+ }
- /* Apply content's subtitle scale */
- i->sub.rectangle.width *= subtitle_content->subtitle_x_scale ();
- i->sub.rectangle.height *= subtitle_content->subtitle_y_scale ();
+ shared_ptr<AudioContent> content = piece->content->audio;
+ DCPOMATIC_ASSERT (content);
- /* Apply a corrective translation to keep the subtitle centred after that scale */
- i->sub.rectangle.x -= i->sub.rectangle.width * (subtitle_content->subtitle_x_scale() - 1);
- i->sub.rectangle.y -= i->sub.rectangle.height * (subtitle_content->subtitle_y_scale() - 1);
+ shared_ptr<AudioBuffers> audio = content_audio.audio;
- ps.image.push_back (i->sub);
- }
+ /* Gain */
+ if (content->gain() != 0) {
+ shared_ptr<AudioBuffers> gain (new AudioBuffers (audio));
+ gain->apply_gain (content->gain ());
+ audio = gain;
+ }
- list<ContentTextSubtitle> text = subtitle_decoder->get_text_subtitles (ContentTimePeriod (from, to), starting);
- BOOST_FOREACH (ContentTextSubtitle& ts, text) {
- BOOST_FOREACH (dcp::SubtitleString& s, ts.subs) {
- s.set_h_position (s.h_position() + subtitle_content->subtitle_x_offset ());
- s.set_v_position (s.v_position() + subtitle_content->subtitle_y_offset ());
- float const xs = subtitle_content->subtitle_x_scale();
- float const ys = subtitle_content->subtitle_y_scale();
- float const average = s.size() * (xs + ys) / 2;
- s.set_size (average);
- if (fabs (1.0 - xs / ys) > dcp::ASPECT_ADJUST_EPSILON) {
- s.set_aspect_adjust (xs / ys);
- }
- ps.text.push_back (s);
+ /* XXX: end-trimming used to be checked here */
+
+ /* Compute time in the DCP */
+ DCPTime const time = resampled_audio_to_dcp (piece, content_audio.frame) + DCPTime::from_seconds (content->delay() / 1000);
+
+ /* Remap channels */
+ shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), audio->frames()));
+ dcp_mapped->make_silent ();
+
+ AudioMapping map = stream->mapping ();
+ for (int i = 0; i < map.input_channels(); ++i) {
+ for (int j = 0; j < dcp_mapped->channels(); ++j) {
+ if (map.get (i, static_cast<dcp::Channel> (j)) > 0) {
+ dcp_mapped->accumulate_channel (
+ audio.get(),
+ i,
+ static_cast<dcp::Channel> (j),
+ map.get (i, static_cast<dcp::Channel> (j))
+ );
}
}
}
- return ps;
+ audio = dcp_mapped;
+
+ if (_audio_processor) {
+ audio = _audio_processor->run (audio, _film->audio_channels ());
+ }
+
+ _audio_merger.push (audio, time);
}
-list<shared_ptr<Font> >
-Player::get_subtitle_fonts ()
+void
+Player::image_subtitle (weak_ptr<Piece> wp, ContentImageSubtitle subtitle)
{
- if (!_have_valid_pieces) {
- setup_pieces ();
+ shared_ptr<Piece> piece = wp.lock ();
+ if (!piece) {
+ return;
}
- list<shared_ptr<Font> > fonts;
- BOOST_FOREACH (shared_ptr<Piece>& p, _pieces) {
- shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (p->content);
- if (sc) {
- /* XXX: things may go wrong if there are duplicate font IDs
- with different font files.
- */
- list<shared_ptr<Font> > f = sc->fonts ();
- copy (f.begin(), f.end(), back_inserter (fonts));
- }
- }
+ /* Apply content's subtitle offsets */
+ subtitle.sub.rectangle.x += piece->content->subtitle->x_offset ();
+ subtitle.sub.rectangle.y += piece->content->subtitle->y_offset ();
- return fonts;
+ /* Apply content's subtitle scale */
+ subtitle.sub.rectangle.width *= piece->content->subtitle->x_scale ();
+ subtitle.sub.rectangle.height *= piece->content->subtitle->y_scale ();
+
+ /* Apply a corrective translation to keep the subtitle centred after that scale */
+ subtitle.sub.rectangle.x -= subtitle.sub.rectangle.width * (piece->content->subtitle->x_scale() - 1);
+ subtitle.sub.rectangle.y -= subtitle.sub.rectangle.height * (piece->content->subtitle->y_scale() - 1);
+
+ PlayerSubtitles ps;
+ ps.image.push_back (subtitle.sub);
+ ps.period = DCPTimePeriod (content_time_to_dcp (piece, subtitle.period().from), content_time_to_dcp (piece, subtitle.period().to));
+
+ if (piece->content->subtitle->use() && (piece->content->subtitle->burn() || _always_burn_subtitles)) {
+ _subtitles.push_back (ps);
+ } else {
+ Subtitle (ps);
+ }
}
-/** Set this player never to produce any video data */
void
-Player::set_ignore_video ()
+Player::text_subtitle (weak_ptr<Piece> wp, ContentTextSubtitle subtitle)
{
- _ignore_video = true;
+ shared_ptr<Piece> piece = wp.lock ();
+ if (!piece) {
+ return;
+ }
+
+ PlayerSubtitles ps;
+
+ BOOST_FOREACH (dcp::SubtitleString s, subtitle.subs) {
+ s.set_h_position (s.h_position() + piece->content->subtitle->x_offset ());
+ s.set_v_position (s.v_position() + piece->content->subtitle->y_offset ());
+ float const xs = piece->content->subtitle->x_scale();
+ float const ys = piece->content->subtitle->y_scale();
+ float size = s.size();
+
+ /* Adjust size to express the common part of the scaling;
+ e.g. if xs = ys = 0.5 we scale size by 2.
+ */
+ if (xs > 1e-5 && ys > 1e-5) {
+ size *= 1 / min (1 / xs, 1 / ys);
+ }
+ s.set_size (size);
+
+ /* Then express aspect ratio changes */
+ if (fabs (1.0 - xs / ys) > dcp::ASPECT_ADJUST_EPSILON) {
+ s.set_aspect_adjust (xs / ys);
+ }
+
+ ps.period = DCPTimePeriod (content_time_to_dcp (piece, subtitle.period().from), content_time_to_dcp (piece, subtitle.period().to));
+
+ s.set_in (dcp::Time(ps.period.from.seconds(), 1000));
+ s.set_out (dcp::Time(ps.period.to.seconds(), 1000));
+ ps.text.push_back (SubtitleString (s, piece->content->subtitle->outline_width()));
+ ps.add_fonts (piece->content->subtitle->fonts ());
+ }
+
+ if (piece->content->subtitle->use() && (piece->content->subtitle->burn() || _always_burn_subtitles)) {
+ _subtitles.push_back (ps);
+ } else {
+ Subtitle (ps);
+ }
}
-/** Set whether or not this player should always burn text subtitles into the image,
- * regardless of the content settings.
- * @param burn true to always burn subtitles, false to obey content settings.
- */
void
-Player::set_always_burn_subtitles (bool burn)
+Player::seek (DCPTime time, bool accurate)
{
- _always_burn_subtitles = burn;
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ if (i->content->position() <= time && time < i->content->end()) {
+ i->decoder->seek (dcp_to_content_time (i, time), accurate);
+ }
+ }
+
+ if (accurate) {
+ _last_video_time = time - DCPTime::from_frames (1, _film->video_frame_rate ());
+ } else {
+ _last_video_time = optional<DCPTime> ();
+ }
}