/*
- Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2018 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 "raw_image_proxy.h"
#include "ratio.h"
#include "log.h"
-#include "render_subtitles.h"
+#include "render_text.h"
#include "config.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 "text_content.h"
+#include "text_decoder.h"
+#include "ffmpeg_content.h"
+#include "audio_content.h"
+#include "dcp_decoder.h"
+#include "image_decoder.h"
+#include "compose.hpp"
+#include "shuffler.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;
+
+int const PlayerProperty::VIDEO_CONTAINER_SIZE = 700;
+int const PlayerProperty::PLAYLIST = 701;
+int const PlayerProperty::FILM_CONTAINER = 702;
+int const PlayerProperty::FILM_VIDEO_FRAME_RATE = 703;
+int const PlayerProperty::DCP_DECODE_REDUCTION = 704;
Player::Player (shared_ptr<const Film> film, shared_ptr<const Playlist> playlist)
: _film (film)
, _playlist (playlist)
, _have_valid_pieces (false)
, _ignore_video (false)
+ , _ignore_subtitle (false)
, _always_burn_subtitles (false)
+ , _fast (false)
+ , _play_referenced (false)
+ , _audio_merger (_film->audio_frame_rate())
+ , _shuffler (0)
{
_film_changed_connection = _film->Changed.connect (bind (&Player::film_changed, this, _1));
_playlist_changed_connection = _playlist->Changed.connect (bind (&Player::playlist_changed, this));
set_video_container_size (_film->frame_size ());
film_changed (Film::AUDIO_PROCESSOR);
+
+ seek (DCPTime (), true);
+}
+
+Player::~Player ()
+{
+ delete _shuffler;
}
void
Player::setup_pieces ()
{
- list<shared_ptr<Piece> > old_pieces = _pieces;
_pieces.clear ();
+ delete _shuffler;
+ _shuffler = new Shuffler();
+ _shuffler->Video.connect(bind(&Player::video, this, _1, _2));
+
BOOST_FOREACH (shared_ptr<Content> i, _playlist->content ()) {
if (!i->paths_valid ()) {
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(), _fast);
+ 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 (true);
}
- /* 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->subtitle && _ignore_subtitle) {
+ decoder->subtitle->set_ignore (true);
}
- 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());
+ shared_ptr<DCPDecoder> dcp = dynamic_pointer_cast<DCPDecoder> (decoder);
+ if (dcp) {
+ dcp->set_decode_referenced (_play_referenced);
+ if (_play_referenced) {
+ dcp->set_forced_reduction (_dcp_decode_reduction);
+ }
}
- /* 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;
- }
- }
+ shared_ptr<Piece> piece (new Piece (i, decoder, frc));
+ _pieces.push_back (piece);
- if (!decoder) {
- decoder.reset (new ImageDecoder (ic));
+ if (decoder->video) {
+ if (i->video->frame_type() == VIDEO_FRAME_TYPE_3D_LEFT || i->video->frame_type() == VIDEO_FRAME_TYPE_3D_RIGHT) {
+ /* We need a Shuffler to cope with 3D L/R video data arriving out of sequence */
+ decoder->video->Data.connect (bind (&Shuffler::video, _shuffler, weak_ptr<Piece>(piece), _1));
+ } else {
+ decoder->video->Data.connect (bind (&Player::video, this, weak_ptr<Piece>(piece), _1));
}
-
- frc = FrameRateChange (ic->video_frame_rate(), _film->video_frame_rate());
- }
-
- /* SndfileContent */
- shared_ptr<const SndfileContent> sc = dynamic_pointer_cast<const SndfileContent> (i);
- if (sc) {
- decoder.reset (new SndfileDecoder (sc));
- frc = best_overlap_frc;
}
- /* 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->audio) {
+ decoder->audio->Data.connect (bind (&Player::audio, this, weak_ptr<Piece> (piece), _1, _2));
}
- /* 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->subtitle) {
+ decoder->subtitle->BitmapStart.connect (bind (&Player::bitmap_text_start, this, weak_ptr<Piece> (piece), _1));
+ decoder->subtitle->PlainStart.connect (bind (&Player::plain_text_start, this, weak_ptr<Piece> (piece), _1));
+ decoder->subtitle->Stop.connect (bind (&Player::subtitle_stop, this, weak_ptr<Piece> (piece), _1, _2));
}
+ }
- shared_ptr<VideoDecoder> vd = dynamic_pointer_cast<VideoDecoder> (decoder);
- if (vd && _ignore_video) {
- vd->set_ignore_video ();
+ _stream_states.clear ();
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ if (i->content->audio) {
+ BOOST_FOREACH (AudioStreamPtr j, i->content->audio->streams()) {
+ _stream_states[j] = StreamState (i, i->content->position ());
+ }
}
-
- _pieces.push_back (shared_ptr<Piece> (new Piece (i, decoder, frc.get ())));
}
+ _black = Empty (_film->content(), _film->length(), bind(&Content::video, _1));
+ _silent = Empty (_film->content(), _film->length(), bind(&Content::audio, _1));
+
+ _last_video_time = DCPTime ();
+ _last_video_eyes = EYES_BOTH;
+ _last_audio_time = DCPTime ();
_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 == VideoContentProperty::COLOUR_CONVERSION ||
+ property == AudioContentProperty::STREAMS ||
+ property == DCPContentProperty::NEEDS_ASSETS ||
+ property == DCPContentProperty::NEEDS_KDM ||
+ property == TextContentProperty::COLOUR ||
+ property == TextContentProperty::EFFECT ||
+ property == TextContentProperty::EFFECT_COLOUR ||
+ property == FFmpegContentProperty::SUBTITLE_STREAM ||
+ property == FFmpegContentProperty::FILTERS
) {
_have_valid_pieces = false;
- Changed (frequent);
+ Changed (property, 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 == SubtitleContentProperty::FONTS ||
- property == VideoContentProperty::VIDEO_CROP ||
- property == VideoContentProperty::VIDEO_SCALE ||
- property == VideoContentProperty::VIDEO_FRAME_RATE ||
- property == VideoContentProperty::VIDEO_FADE_IN ||
- property == VideoContentProperty::VIDEO_FADE_OUT ||
- property == VideoContentProperty::COLOUR_CONVERSION
+ property == TextContentProperty::LINE_SPACING ||
+ property == TextContentProperty::OUTLINE_WIDTH ||
+ property == TextContentProperty::Y_SCALE ||
+ property == TextContentProperty::FADE_IN ||
+ property == TextContentProperty::FADE_OUT ||
+ property == ContentProperty::VIDEO_FRAME_RATE ||
+ property == TextContentProperty::USE ||
+ property == TextContentProperty::X_OFFSET ||
+ property == TextContentProperty::Y_OFFSET ||
+ property == TextContentProperty::X_SCALE ||
+ property == TextContentProperty::FONTS ||
+ property == VideoContentProperty::CROP ||
+ property == VideoContentProperty::SCALE ||
+ property == VideoContentProperty::FADE_IN ||
+ property == VideoContentProperty::FADE_OUT
) {
- Changed (frequent);
+ Changed (property, frequent);
}
}
void
Player::set_video_container_size (dcp::Size s)
{
+ if (s == _video_container_size) {
+ return;
+ }
+
_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 ();
+
+ Changed (PlayerProperty::VIDEO_CONTAINER_SIZE, false);
}
void
Player::playlist_changed ()
{
_have_valid_pieces = false;
- Changed (false);
+ Changed (PlayerProperty::PLAYLIST, false);
}
void
last time we were run.
*/
- if (p == Film::CONTAINER || p == Film::VIDEO_FRAME_RATE) {
- Changed (false);
+ if (p == Film::CONTAINER) {
+ Changed (PlayerProperty::FILM_CONTAINER, 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 (PlayerProperty::FILM_VIDEO_FRAME_RATE, false);
} else if (p == Film::AUDIO_PROCESSOR) {
if (_film->audio_processor ()) {
_audio_processor = _film->audio_processor()->clone (_film->audio_frame_rate ());
}
+ } else if (p == Film::AUDIO_CHANNELS) {
+ _audio_merger.clear ();
}
}
list<PositionImage>
-Player::transform_image_subtitles (list<ImageSubtitle> subs) const
+Player::transform_bitmap_texts (list<BitmapText> subs) const
{
list<PositionImage> all;
- for (list<ImageSubtitle>::const_iterator i = subs.begin(); i != subs.end(); ++i) {
+ for (list<BitmapText>::const_iterator i = subs.begin(); i != subs.end(); ++i) {
if (!i->image) {
continue;
}
/* We will scale the subtitle up to fit _video_container_size */
dcp::Size scaled_size (i->rectangle.width * _video_container_size.width, i->rectangle.height * _video_container_size.height);
- /* Then we need a corrective translation, consisting of two parts:
- *
- * 1. that which is the result of the scaling of the subtitle by _video_container_size; this will be
- * rect.x * _video_container_size.width and rect.y * _video_container_size.height.
- *
- * 2. that to shift the origin of the scale by subtitle_scale to the centre of the subtitle; this will be
- * (width_before_subtitle_scale * (1 - subtitle_x_scale) / 2) and
- * (height_before_subtitle_scale * (1 - subtitle_y_scale) / 2).
- *
- * Combining these two translations gives these expressions.
- */
-
all.push_back (
PositionImage (
i->image->scale (
scaled_size,
dcp::YUV_TO_RGB_REC601,
i->image->pixel_format (),
- true
+ true,
+ _fast
),
Position<int> (
lrint (_video_container_size.width * i->rectangle.x),
}
shared_ptr<PlayerVideo>
-Player::black_player_video_frame (DCPTime time) const
+Player::black_player_video_frame (Eyes eyes) const
{
return shared_ptr<PlayerVideo> (
new PlayerVideo (
shared_ptr<const ImageProxy> (new RawImageProxy (_black_image)),
- time,
Crop (),
optional<double> (),
_video_container_size,
_video_container_size,
- EYES_BOTH,
+ eyes,
PART_WHOLE,
- PresetColourConversion::all().front().conversion
+ PresetColourConversion::all().front().conversion,
+ boost::weak_ptr<Content>(),
+ boost::optional<Frame>()
)
);
}
-/** @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 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 */
+ return DCPTime::from_frames (f, _film->audio_frame_rate())
+ - DCPTime (piece->content->trim_start(), piece->frc)
+ + 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));
+ }
+ }
+
+ return fonts;
+}
+
+/** Set this player never to produce any video data */
+void
+Player::set_ignore_video ()
+{
+ _ignore_video = true;
+}
- PlayerSubtitles ps = get_subtitles (time, DCPTime::from_frames (1, _film->video_frame_rate ()), false, true);
+void
+Player::set_ignore_subtitle ()
+{
+ _ignore_subtitle = true;
+}
- list<PositionImage> 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;
+}
- /* Image subtitles */
- list<PositionImage> c = transform_image_subtitles (ps.image);
- copy (c.begin(), c.end(), back_inserter (sub_images));
+/** Sets up the player to be faster, possibly at the expense of quality */
+void
+Player::set_fast ()
+{
+ _fast = true;
+ _have_valid_pieces = false;
+}
- /* Text subtitles (rendered to an image) */
- if (!ps.text.empty ()) {
- list<PositionImage> s = render_subtitles (ps.text, ps.fonts, _video_container_size);
- copy (s.begin (), s.end (), back_inserter (sub_images));
- }
+void
+Player::set_play_referenced ()
+{
+ _play_referenced = true;
+ _have_valid_pieces = false;
+}
- optional<PositionImage> subtitles;
- if (!sub_images.empty ()) {
- subtitles = merge (sub_images);
- }
+list<ReferencedReelAsset>
+Player::get_reel_assets ()
+{
+ list<ReferencedReelAsset> a;
- /* Find pieces containing video which is happening now */
+ BOOST_FOREACH (shared_ptr<Content> i, _playlist->content ()) {
+ shared_ptr<DCPContent> j = dynamic_pointer_cast<DCPContent> (i);
+ if (!j) {
+ continue;
+ }
- list<shared_ptr<Piece> > ov = overlaps<VideoContent> (
- time,
- time + DCPTime::from_frames (1, _film->video_frame_rate ()) - DCPTime::delta()
- );
+ scoped_ptr<DCPDecoder> decoder;
+ try {
+ decoder.reset (new DCPDecoder (j, _film->log(), false));
+ } catch (...) {
+ return a;
+ }
- list<shared_ptr<PlayerVideo> > pvf;
+ 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)))
+ );
+ }
- if (ov.empty ()) {
- /* No video content at this time */
- pvf.push_back (black_player_video_frame (time));
- } else {
- /* Some video content at this time */
- shared_ptr<Piece> last = *(ov.rbegin ());
- VideoFrameType const last_type = dynamic_pointer_cast<VideoContent> (last->content)->video_frame_type ();
-
- /* Get video from appropriate piece(s) */
- BOOST_FOREACH (shared_ptr<Piece> piece, ov) {
-
- 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);
-
- bool const use =
- /* always use the last video */
- piece == last ||
- /* with a corresponding L/R eye if appropriate */
- (last_type == VIDEO_FRAME_TYPE_3D_LEFT && video_content->video_frame_type() == VIDEO_FRAME_TYPE_3D_RIGHT) ||
- (last_type == VIDEO_FRAME_TYPE_3D_RIGHT && video_content->video_frame_type() == VIDEO_FRAME_TYPE_3D_LEFT);
-
- if (use) {
- /* We want to use this piece */
- 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 ()
- )
- )
- );
- }
- }
- } else {
- /* Discard unused video */
- decoder->get_video (dcp_to_content_video (piece, time), accurate);
+ 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)))
+ );
}
- }
- }
- if (subtitles) {
- BOOST_FOREACH (shared_ptr<PlayerVideo> p, pvf) {
- p->set_subtitle (subtitles.get ());
+ 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)))
+ );
+ }
+
+ /* 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)
+bool
+Player::pass ()
{
if (!_have_valid_pieces) {
setup_pieces ();
}
- Frame const length_frames = length.frames_round (_film->audio_frame_rate ());
+ if (_playlist->length() == DCPTime()) {
+ /* Special case of an empty Film; just give one black frame */
+ emit_video (black_player_video_frame(EYES_BOTH), DCPTime());
+ return true;
+ }
- shared_ptr<AudioBuffers> audio (new AudioBuffers (_film->audio_channels(), length_frames));
- audio->make_silent ();
+ /* Find the decoder or empty which is farthest behind where we are and make it emit some data */
- list<shared_ptr<Piece> > ov = overlaps<AudioContent> (time, time + length);
- if (ov.empty ()) {
- return audio;
- }
+ shared_ptr<Piece> earliest_content;
+ optional<DCPTime> earliest_time;
- for (list<shared_ptr<Piece> >::iterator i = ov.begin(); i != ov.end(); ++i) {
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ if (i->done) {
+ continue;
+ }
- 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);
+ DCPTime const t = content_time_to_dcp (i, max(i->decoder->position(), i->content->trim_start()));
+ if (t > i->content->end()) {
+ i->done = true;
+ } else {
- /* 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.
+ /* Given two choices at the same time, pick the one with a subtitle so we see it before
+ the video.
*/
- offset = -request;
- request_frames += request.frames_round (_film->audio_frame_rate ());
- if (request_frames < 0) {
- request_frames = 0;
+ if (!earliest_time || t < *earliest_time || (t == *earliest_time && i->decoder->subtitle)) {
+ earliest_time = t;
+ earliest_content = i;
}
- request = DCPTime ();
}
+ }
- Frame const content_frame = dcp_to_resampled_audio (*i, request);
+ bool done = false;
- BOOST_FOREACH (AudioStreamPtr j, content->audio_streams ()) {
+ enum {
+ NONE,
+ CONTENT,
+ BLACK,
+ SILENT
+ } which = NONE;
- if (j->channels() == 0) {
- /* Some content (e.g. DCPs) can have streams with no channels */
- continue;
- }
+ if (earliest_content) {
+ which = CONTENT;
+ }
- /* 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);
+ if (!_black.done() && (!earliest_time || _black.position() < *earliest_time)) {
+ earliest_time = _black.position ();
+ which = BLACK;
+ }
- /* Gain */
- if (content->audio_gain() != 0) {
- shared_ptr<AudioBuffers> gain (new AudioBuffers (all.audio));
- gain->apply_gain (content->audio_gain ());
- all.audio = gain;
- }
+ if (!_silent.done() && (!earliest_time || _silent.position() < *earliest_time)) {
+ earliest_time = _silent.position ();
+ which = SILENT;
+ }
- /* 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)
- );
- }
- }
- }
+ switch (which) {
+ case CONTENT:
+ earliest_content->done = earliest_content->decoder->pass ();
+ break;
+ case BLACK:
+ emit_video (black_player_video_frame(EYES_BOTH), _black.position());
+ _black.set_position (_black.position() + one_video_frame());
+ break;
+ case SILENT:
+ {
+ DCPTimePeriod period (_silent.period_at_position());
+ if (_last_audio_time) {
+ /* Sometimes the thing that happened last finishes fractionally before
+ this silence. Bodge the start time of the silence to fix it. I'm
+ not sure if this is the right solution --- maybe the last thing should
+ be padded `forward' rather than this thing padding `back'.
+ */
+ period.from = min(period.from, *_last_audio_time);
+ }
+ if (period.duration() > one_video_frame()) {
+ period.to = period.from + one_video_frame();
+ }
+ fill_audio (period);
+ _silent.set_position (period.to);
+ break;
+ }
+ case NONE:
+ done = true;
+ break;
+ }
- if (_audio_processor) {
- dcp_mapped = _audio_processor->run (dcp_mapped);
+ /* Emit any audio that is ready */
+
+ /* Work out the time before which the audio is definitely all here. This is the earliest last_push_end of one
+ of our streams, or the position of the _silent.
+ */
+ DCPTime pull_to = _film->length ();
+ for (map<AudioStreamPtr, StreamState>::const_iterator i = _stream_states.begin(); i != _stream_states.end(); ++i) {
+ if (!i->second.piece->done && i->second.last_push_end < pull_to) {
+ pull_to = i->second.last_push_end;
+ }
+ }
+ if (!_silent.done() && _silent.position() < pull_to) {
+ pull_to = _silent.position();
+ }
+
+ list<pair<shared_ptr<AudioBuffers>, DCPTime> > audio = _audio_merger.pull (pull_to);
+ for (list<pair<shared_ptr<AudioBuffers>, DCPTime> >::iterator i = audio.begin(); i != audio.end(); ++i) {
+ if (_last_audio_time && i->second < *_last_audio_time) {
+ /* This new data comes before the last we emitted (or the last seek); discard it */
+ pair<shared_ptr<AudioBuffers>, DCPTime> cut = discard_audio (i->first, i->second, *_last_audio_time);
+ if (!cut.first) {
+ continue;
}
+ *i = cut;
+ } else if (_last_audio_time && i->second > *_last_audio_time) {
+ /* There's a gap between this data and the last we emitted; fill with silence */
+ fill_audio (DCPTimePeriod (*_last_audio_time, i->second));
+ }
- all.audio = dcp_mapped;
+ emit_audio (i->first, i->second);
+ }
- audio->accumulate_frames (
- all.audio.get(),
- content_frame - all.frame,
- offset.frames_round (_film->audio_frame_rate()),
- min (Frame (all.audio->frames()), request_frames)
- );
+ if (done) {
+ _shuffler->flush ();
+ for (list<pair<shared_ptr<PlayerVideo>, DCPTime> >::const_iterator i = _delay.begin(); i != _delay.end(); ++i) {
+ do_emit_video(i->first, i->second);
}
}
- return audio;
+ return done;
}
-Frame
-Player::dcp_to_content_video (shared_ptr<const Piece> piece, DCPTime t) const
+optional<PositionImage>
+Player::subtitles_for_frame (DCPTime time) 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 ());
+ list<PositionImage> subtitles;
+
+ int const vfr = _film->video_frame_rate();
+
+ BOOST_FOREACH (PlayerCaption i, _active_text[TEXT_SUBTITLE].get_burnt (DCPTimePeriod(time, time + DCPTime::from_frames(1, vfr)), _always_burn_subtitles)) {
+
+ /* Image subtitles */
+ list<PositionImage> c = transform_bitmap_texts (i.image);
+ copy (c.begin(), c.end(), back_inserter (subtitles));
+
+ /* Text subtitles (rendered to an image) */
+ if (!i.text.empty ()) {
+ list<PositionImage> s = render_text (i.text, i.fonts, _video_container_size, time, vfr);
+ copy (s.begin(), s.end(), back_inserter (subtitles));
+ }
+ }
+
+ if (subtitles.empty ()) {
+ return optional<PositionImage> ();
+ }
+
+ return merge (subtitles);
}
-DCPTime
-Player::content_video_to_dcp (shared_ptr<const Piece> piece, Frame f) const
+void
+Player::video (weak_ptr<Piece> wp, ContentVideo video)
{
- 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 ());
+ shared_ptr<Piece> piece = wp.lock ();
+ if (!piece) {
+ return;
+ }
+
+ FrameRateChange frc(piece->content->active_video_frame_rate(), _film->video_frame_rate());
+ if (frc.skip && (video.frame % 2) == 1) {
+ return;
+ }
+
+ /* Time of the first frame we will emit */
+ DCPTime const time = content_video_to_dcp (piece, video.frame);
+
+ /* Discard if it's before the content's period or the last accurate seek. We can't discard
+ if it's after the content's period here as in that case we still need to fill any gap between
+ `now' and the end of the content's period.
+ */
+ if (time < piece->content->position() || (_last_video_time && time < *_last_video_time)) {
+ return;
+ }
+
+ /* Fill gaps that we discover now that we have some video which needs to be emitted.
+ This is where we need to fill to.
+ */
+ DCPTime fill_to = min (time, piece->content->end());
+
+ if (_last_video_time) {
+ DCPTime fill_from = max (*_last_video_time, piece->content->position());
+ LastVideoMap::const_iterator last = _last_video.find (wp);
+ if (_film->three_d()) {
+ DCPTime j = fill_from;
+ Eyes eyes = _last_video_eyes.get_value_or(EYES_LEFT);
+ if (eyes == EYES_BOTH) {
+ eyes = EYES_LEFT;
+ }
+ while (j < fill_to || eyes != video.eyes) {
+ if (last != _last_video.end()) {
+ shared_ptr<PlayerVideo> copy = last->second->shallow_copy();
+ copy->set_eyes (eyes);
+ emit_video (copy, j);
+ } else {
+ emit_video (black_player_video_frame(eyes), j);
+ }
+ if (eyes == EYES_RIGHT) {
+ j += one_video_frame();
+ }
+ eyes = increment_eyes (eyes);
+ }
+ } else {
+ for (DCPTime j = fill_from; j < fill_to; j += one_video_frame()) {
+ if (last != _last_video.end()) {
+ emit_video (last->second, j);
+ } else {
+ emit_video (black_player_video_frame(EYES_BOTH), j);
+ }
+ }
+ }
+ }
+
+ _last_video[wp].reset (
+ new PlayerVideo (
+ video.image,
+ piece->content->video->crop (),
+ piece->content->video->fade (video.frame),
+ piece->content->video->scale().size (
+ piece->content->video, _video_container_size, _film->frame_size ()
+ ),
+ _video_container_size,
+ video.eyes,
+ video.part,
+ piece->content->video->colour_conversion(),
+ piece->content,
+ video.frame
+ )
+ );
+
+ DCPTime t = time;
+ for (int i = 0; i < frc.repeat; ++i) {
+ if (t < piece->content->end()) {
+ emit_video (_last_video[wp], t);
+ }
+ t += one_video_frame ();
+ }
}
-Frame
-Player::dcp_to_resampled_audio (shared_ptr<const Piece> piece, DCPTime t) const
+void
+Player::audio (weak_ptr<Piece> wp, AudioStreamPtr stream, ContentAudio content_audio)
{
- 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 ());
+ DCPOMATIC_ASSERT (content_audio.audio->frames() > 0);
+
+ shared_ptr<Piece> piece = wp.lock ();
+ if (!piece) {
+ return;
+ }
+
+ shared_ptr<AudioContent> content = piece->content->audio;
+ DCPOMATIC_ASSERT (content);
+
+ /* Compute time in the DCP */
+ DCPTime time = resampled_audio_to_dcp (piece, content_audio.frame);
+ /* And the end of this block in the DCP */
+ DCPTime end = time + DCPTime::from_frames(content_audio.audio->frames(), content->resampled_frame_rate());
+
+ /* Remove anything that comes before the start or after the end of the content */
+ if (time < piece->content->position()) {
+ pair<shared_ptr<AudioBuffers>, DCPTime> cut = discard_audio (content_audio.audio, time, piece->content->position());
+ if (!cut.first) {
+ /* This audio is entirely discarded */
+ return;
+ }
+ content_audio.audio = cut.first;
+ time = cut.second;
+ } else if (time > piece->content->end()) {
+ /* Discard it all */
+ return;
+ } else if (end > piece->content->end()) {
+ Frame const remaining_frames = DCPTime(piece->content->end() - time).frames_round(_film->audio_frame_rate());
+ if (remaining_frames == 0) {
+ return;
+ }
+ shared_ptr<AudioBuffers> cut (new AudioBuffers (content_audio.audio->channels(), remaining_frames));
+ cut->copy_from (content_audio.audio.get(), remaining_frames, 0, 0);
+ content_audio.audio = cut;
+ }
+
+ DCPOMATIC_ASSERT (content_audio.audio->frames() > 0);
+
+ /* Gain */
+
+ if (content->gain() != 0) {
+ shared_ptr<AudioBuffers> gain (new AudioBuffers (content_audio.audio));
+ gain->apply_gain (content->gain ());
+ content_audio.audio = gain;
+ }
+
+ /* Remap */
+
+ content_audio.audio = remap (content_audio.audio, _film->audio_channels(), stream->mapping());
+
+ /* Process */
+
+ if (_audio_processor) {
+ content_audio.audio = _audio_processor->run (content_audio.audio, _film->audio_channels ());
+ }
+
+ /* Push */
+
+ _audio_merger.push (content_audio.audio, time);
+ DCPOMATIC_ASSERT (_stream_states.find (stream) != _stream_states.end ());
+ _stream_states[stream].last_push_end = time + DCPTime::from_frames (content_audio.audio->frames(), _film->audio_frame_rate());
}
-ContentTime
-Player::dcp_to_content_subtitle (shared_ptr<const Piece> piece, DCPTime t) const
+void
+Player::bitmap_text_start (weak_ptr<Piece> wp, ContentBitmapCaption subtitle)
{
- 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());
+ shared_ptr<Piece> piece = wp.lock ();
+ if (!piece) {
+ return;
+ }
+
+ /* Apply content's subtitle offsets */
+ subtitle.sub.rectangle.x += piece->content->subtitle->x_offset ();
+ subtitle.sub.rectangle.y += piece->content->subtitle->y_offset ();
+
+ /* Apply a corrective translation to keep the subtitle centred after the scale that is coming up */
+ subtitle.sub.rectangle.x -= subtitle.sub.rectangle.width * ((piece->content->subtitle->x_scale() - 1) / 2);
+ subtitle.sub.rectangle.y -= subtitle.sub.rectangle.height * ((piece->content->subtitle->y_scale() - 1) / 2);
+
+ /* Apply content's subtitle scale */
+ subtitle.sub.rectangle.width *= piece->content->subtitle->x_scale ();
+ subtitle.sub.rectangle.height *= piece->content->subtitle->y_scale ();
+
+ PlayerCaption ps;
+ ps.image.push_back (subtitle.sub);
+ DCPTime from (content_time_to_dcp (piece, subtitle.from()));
+
+ _active_text[subtitle.type()].add_from (wp, ps, from);
}
-/** @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)
+void
+Player::plain_text_start (weak_ptr<Piece> wp, ContentTextCaption subtitle)
{
- list<shared_ptr<Piece> > subs = overlaps<SubtitleContent> (time, time + length);
+ shared_ptr<Piece> piece = wp.lock ();
+ if (!piece) {
+ return;
+ }
- PlayerSubtitles ps (time, length);
+ PlayerCaption ps;
+ DCPTime const from (content_time_to_dcp (piece, subtitle.from()));
- 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;
+ if (from > piece->content->end()) {
+ return;
+ }
+
+ 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);
- 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 ());
+ /* Then express aspect ratio changes */
+ if (fabs (1.0 - xs / ys) > dcp::ASPECT_ADJUST_EPSILON) {
+ s.set_aspect_adjust (xs / ys);
+ }
- list<ContentImageSubtitle> image = subtitle_decoder->get_image_subtitles (ContentTimePeriod (from, to), starting);
- for (list<ContentImageSubtitle>::iterator i = image.begin(); i != image.end(); ++i) {
+ s.set_in (dcp::Time(from.seconds(), 1000));
+ ps.text.push_back (TextCaption (s, piece->content->subtitle->outline_width()));
+ ps.add_fonts (piece->content->subtitle->fonts ());
+ }
- /* Apply content's subtitle offsets */
- i->sub.rectangle.x += subtitle_content->subtitle_x_offset ();
- i->sub.rectangle.y += subtitle_content->subtitle_y_offset ();
+ _active_text[subtitle.type()].add_from (wp, ps, from);
+}
- /* Apply content's subtitle scale */
- i->sub.rectangle.width *= subtitle_content->subtitle_x_scale ();
- i->sub.rectangle.height *= subtitle_content->subtitle_y_scale ();
+void
+Player::subtitle_stop (weak_ptr<Piece> wp, ContentTime to, TextType type)
+{
+ if (!_active_text[type].have (wp)) {
+ return;
+ }
- /* 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<Piece> piece = wp.lock ();
+ if (!piece) {
+ return;
+ }
- ps.image.push_back (i->sub);
- }
+ DCPTime const dcp_to = content_time_to_dcp (piece, to);
- 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);
- ps.add_fonts (subtitle_content->fonts ());
- }
- }
+ if (dcp_to > piece->content->end()) {
+ return;
}
- return ps;
+ pair<PlayerCaption, DCPTime> from = _active_text[type].add_to (wp, dcp_to);
+
+ if (piece->content->subtitle->use() && !_always_burn_subtitles && !piece->content->subtitle->burn()) {
+ Text (from.first, type, DCPTimePeriod (from.second, dcp_to));
+ }
}
-list<shared_ptr<Font> >
-Player::get_subtitle_fonts ()
+void
+Player::seek (DCPTime time, bool accurate)
{
if (!_have_valid_pieces) {
setup_pieces ();
}
- 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));
+ if (_shuffler) {
+ _shuffler->clear ();
+ }
+
+ _delay.clear ();
+
+ if (_audio_processor) {
+ _audio_processor->flush ();
+ }
+
+ _audio_merger.clear ();
+ for (int i = 0; i < TEXT_COUNT; ++i) {
+ _active_text[i].clear ();
+ }
+
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ if (time < i->content->position()) {
+ /* Before; seek to the start of the content */
+ i->decoder->seek (dcp_to_content_time (i, i->content->position()), accurate);
+ i->done = false;
+ } else if (i->content->position() <= time && time < i->content->end()) {
+ /* During; seek to position */
+ i->decoder->seek (dcp_to_content_time (i, time), accurate);
+ i->done = false;
+ } else {
+ /* After; this piece is done */
+ i->done = true;
}
}
- return fonts;
+ if (accurate) {
+ _last_video_time = time;
+ _last_video_eyes = EYES_LEFT;
+ _last_audio_time = time;
+ } else {
+ _last_video_time = optional<DCPTime>();
+ _last_video_eyes = optional<Eyes>();
+ _last_audio_time = optional<DCPTime>();
+ }
+
+ _black.set_position (time);
+ _silent.set_position (time);
+
+ _last_video.clear ();
}
-/** Set this player never to produce any video data */
void
-Player::set_ignore_video ()
+Player::emit_video (shared_ptr<PlayerVideo> pv, DCPTime time)
{
- _ignore_video = true;
+ /* We need a delay to give a little wiggle room to ensure that relevent subtitles arrive at the
+ player before the video that requires them.
+ */
+ _delay.push_back (make_pair (pv, time));
+
+ if (pv->eyes() == EYES_BOTH || pv->eyes() == EYES_RIGHT) {
+ _last_video_time = time + one_video_frame();
+ }
+ _last_video_eyes = increment_eyes (pv->eyes());
+
+ if (_delay.size() < 3) {
+ return;
+ }
+
+ pair<shared_ptr<PlayerVideo>, DCPTime> to_do = _delay.front();
+ _delay.pop_front();
+ do_emit_video (to_do.first, to_do.second);
}
-/** 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::do_emit_video (shared_ptr<PlayerVideo> pv, DCPTime time)
{
- _always_burn_subtitles = burn;
+ if (pv->eyes() == EYES_BOTH || pv->eyes() == EYES_RIGHT) {
+ for (int i = 0; i < TEXT_COUNT; ++i) {
+ _active_text[i].clear_before (time);
+ }
+ }
+
+ optional<PositionImage> subtitles = subtitles_for_frame (time);
+ if (subtitles) {
+ pv->set_subtitle (subtitles.get ());
+ }
+
+ Video (pv, time);
+}
+
+void
+Player::emit_audio (shared_ptr<AudioBuffers> data, DCPTime time)
+{
+ /* Log if the assert below is about to fail */
+ if (_last_audio_time && time != *_last_audio_time) {
+ _film->log()->log(String::compose("Out-of-sequence emit %1 vs %2", to_string(time), to_string(*_last_audio_time)), LogEntry::TYPE_WARNING);
+ }
+
+ /* This audio must follow on from the previous */
+ DCPOMATIC_ASSERT (!_last_audio_time || time == *_last_audio_time);
+ Audio (data, time);
+ _last_audio_time = time + DCPTime::from_frames (data->frames(), _film->audio_frame_rate());
+}
+
+void
+Player::fill_audio (DCPTimePeriod period)
+{
+ if (period.from == period.to) {
+ return;
+ }
+
+ DCPOMATIC_ASSERT (period.from < period.to);
+
+ DCPTime t = period.from;
+ while (t < period.to) {
+ DCPTime block = min (DCPTime::from_seconds (0.5), period.to - t);
+ Frame const samples = block.frames_round(_film->audio_frame_rate());
+ if (samples) {
+ shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), samples));
+ silence->make_silent ();
+ emit_audio (silence, t);
+ }
+ t += block;
+ }
+}
+
+DCPTime
+Player::one_video_frame () const
+{
+ return DCPTime::from_frames (1, _film->video_frame_rate ());
+}
+
+pair<shared_ptr<AudioBuffers>, DCPTime>
+Player::discard_audio (shared_ptr<const AudioBuffers> audio, DCPTime time, DCPTime discard_to) const
+{
+ DCPTime const discard_time = discard_to - time;
+ Frame const discard_frames = discard_time.frames_round(_film->audio_frame_rate());
+ Frame remaining_frames = audio->frames() - discard_frames;
+ if (remaining_frames <= 0) {
+ return make_pair(shared_ptr<AudioBuffers>(), DCPTime());
+ }
+ shared_ptr<AudioBuffers> cut (new AudioBuffers (audio->channels(), remaining_frames));
+ cut->copy_from (audio.get(), remaining_frames, discard_frames, 0);
+ return make_pair(cut, time + discard_time);
+}
+
+void
+Player::set_dcp_decode_reduction (optional<int> reduction)
+{
+ if (reduction == _dcp_decode_reduction) {
+ return;
+ }
+
+ _dcp_decode_reduction = reduction;
+ _have_valid_pieces = false;
+ Changed (PlayerProperty::DCP_DECODE_REDUCTION, false);
+}
+
+DCPTime
+Player::content_time_to_dcp (shared_ptr<Content> content, ContentTime t)
+{
+ if (_have_valid_pieces) {
+ setup_pieces ();
+ }
+
+ BOOST_FOREACH (shared_ptr<Piece> i, _pieces) {
+ if (i->content == content) {
+ return content_time_to_dcp (i, t);
+ }
+ }
+
+ DCPOMATIC_ASSERT (false);
+ return DCPTime ();
}
projects / dcpomatic.git / blobdiff