X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fplayer.cc;h=a090b7c26f6e0d536537ab1f6a23cefa51b00bc4;hb=9cb73fbc0fa4643612f01665bc6d9fc430656f32;hp=d2ef1a5fffa6a6d61a6b47e187bd743a291a4f7a;hpb=d5066f2051d91b638f39bd22d5f82154accd1af2;p=dcpomatic.git diff --git a/src/lib/player.cc b/src/lib/player.cc index d2ef1a5ff..a7cd0fd94 100644 --- a/src/lib/player.cc +++ b/src/lib/player.cc @@ -1,58 +1,65 @@ /* - Copyright (C) 2013-2015 Carl Hetherington + Copyright (C) 2013-2018 Carl Hetherington - 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 . */ #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 +#include +#include +#include #include #include #include +#include #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; @@ -68,13 +75,25 @@ using boost::shared_ptr; 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 film, shared_ptr 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)); @@ -82,107 +101,92 @@ Player::Player (shared_ptr film, shared_ptr playlist set_video_container_size (_film->frame_size ()); film_changed (Film::AUDIO_PROCESSOR); + + seek (DCPTime (), true); +} + +Player::~Player () +{ + delete _shuffler; } void Player::setup_pieces () { - list > old_pieces = _pieces; _pieces.clear (); + delete _shuffler; + _shuffler = new Shuffler(); + _shuffler->Video.connect(bind(&Player::video, this, _1, _2)); + BOOST_FOREACH (shared_ptr i, _playlist->content ()) { if (!i->paths_valid ()) { continue; } - shared_ptr decoder; - optional 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 best_overlap; - BOOST_FOREACH (shared_ptr j, _playlist->content ()) { - shared_ptr vc = dynamic_pointer_cast (j); - if (!vc) { - continue; - } + shared_ptr 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 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 fc = dynamic_pointer_cast (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 dc = dynamic_pointer_cast (i); - if (dc) { - decoder.reset (new DCPDecoder (dc)); - frc = FrameRateChange (dc->video_frame_rate(), _film->video_frame_rate()); + shared_ptr dcp = dynamic_pointer_cast (decoder); + if (dcp) { + dcp->set_decode_referenced (_play_referenced); + if (_play_referenced) { + dcp->set_forced_reduction (_dcp_decode_reduction); + } } - /* ImageContent */ - shared_ptr ic = dynamic_pointer_cast (i); - if (ic) { - /* See if we can re-use an old ImageDecoder */ - for (list >::const_iterator j = old_pieces.begin(); j != old_pieces.end(); ++j) { - shared_ptr imd = dynamic_pointer_cast ((*j)->decoder); - if (imd && imd->content() == ic) { - decoder = imd; - } - } + shared_ptr 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), _1)); + } else { + decoder->video->Data.connect (bind (&Player::video, this, weak_ptr(piece), _1)); } - - frc = FrameRateChange (ic->video_frame_rate(), _film->video_frame_rate()); - } - - /* SndfileContent */ - shared_ptr sc = dynamic_pointer_cast (i); - if (sc) { - decoder.reset (new SndfileDecoder (sc)); - frc = best_overlap_frc; } - /* SubRipContent */ - shared_ptr rc = dynamic_pointer_cast (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), _1, _2)); } - /* DCPSubtitleContent */ - shared_ptr dsc = dynamic_pointer_cast (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), _1)); + decoder->subtitle->PlainStart.connect (bind (&Player::plain_text_start, this, weak_ptr (piece), _1)); + decoder->subtitle->Stop.connect (bind (&Player::subtitle_stop, this, weak_ptr (piece), _1, _2)); } + } - shared_ptr vd = dynamic_pointer_cast (decoder); - if (vd && _ignore_video) { - vd->set_ignore_video (); + _stream_states.clear (); + BOOST_FOREACH (shared_ptr 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 (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; } @@ -200,46 +204,63 @@ Player::playlist_content_changed (weak_ptr w, int property, bool freque 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 @@ -250,21 +271,29 @@ Player::film_changed (Film::Property p) 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 -Player::transform_image_subtitles (list subs) const +Player::transform_bitmap_texts (list subs) const { list all; - for (list::const_iterator i = subs.begin(); i != subs.end(); ++i) { + for (list::const_iterator i = subs.begin(); i != subs.end(); ++i) { if (!i->image) { continue; } @@ -272,25 +301,14 @@ Player::transform_image_subtitles (list subs) const /* 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 ( lrint (_video_container_size.width * i->rectangle.x), @@ -304,353 +322,790 @@ Player::transform_image_subtitles (list subs) const } shared_ptr -Player::black_player_video_frame (DCPTime time) const +Player::black_player_video_frame (Eyes eyes) const { return shared_ptr ( new PlayerVideo ( shared_ptr (new RawImageProxy (_black_image)), - time, Crop (), optional (), _video_container_size, _video_container_size, - EYES_BOTH, + eyes, PART_WHOLE, - PresetColourConversion::all().front().conversion + PresetColourConversion::all().front().conversion, + boost::weak_ptr(), + boost::optional() ) ); } -/** @return All PlayerVideos at the given time (there may be two frames for 3D) */ -list > -Player::get_video (DCPTime time, bool accurate) +Frame +Player::dcp_to_content_video (shared_ptr 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 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 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 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 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 piece, ContentTime t) const +{ + return max (DCPTime (), DCPTime (t - piece->content->trim_start(), piece->frc) + piece->content->position()); +} + +list > +Player::get_subtitle_fonts () { if (!_have_valid_pieces) { setup_pieces (); } - /* Find subtitles for possible burn-in */ + list > fonts; + BOOST_FOREACH (shared_ptr& p, _pieces) { + if (p->content->subtitle) { + /* XXX: things may go wrong if there are duplicate font IDs + with different font files. + */ + list > 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 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 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 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 subtitles; - if (!sub_images.empty ()) { - subtitles = merge (sub_images); - } +list +Player::get_reel_assets () +{ + list a; - /* Find pieces containing video which is happening now */ + BOOST_FOREACH (shared_ptr i, _playlist->content ()) { + shared_ptr j = dynamic_pointer_cast (i); + if (!j) { + continue; + } - list > ov = overlaps ( - time, - time + DCPTime::from_frames (1, _film->video_frame_rate ()) - DCPTime::delta() - ); + scoped_ptr decoder; + try { + decoder.reset (new DCPDecoder (j, _film->log(), false)); + } catch (...) { + return a; + } - list > pvf; + int64_t offset = 0; + BOOST_FOREACH (shared_ptr 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 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 last = *(ov.rbegin ()); - VideoFrameType const last_type = dynamic_pointer_cast (last->content)->video_frame_type (); - - /* Get video from appropriate piece(s) */ - BOOST_FOREACH (shared_ptr piece, ov) { - - shared_ptr decoder = dynamic_pointer_cast (piece->decoder); - DCPOMATIC_ASSERT (decoder); - shared_ptr video_content = dynamic_pointer_cast (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 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::const_iterator i = content_video.begin(); i != content_video.end(); ++i) { - pvf.push_back ( - shared_ptr ( - 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 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 p, pvf) { - p->set_subtitle (subtitles.get ()); + if (j->reference_subtitle ()) { + shared_ptr 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 -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 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 > ov = overlaps (time, time + length); - if (ov.empty ()) { - return audio; - } + shared_ptr earliest_content; + optional earliest_time; - for (list >::iterator i = ov.begin(); i != ov.end(); ++i) { + BOOST_FOREACH (shared_ptr i, _pieces) { + if (i->done) { + continue; + } - shared_ptr content = dynamic_pointer_cast ((*i)->content); - DCPOMATIC_ASSERT (content); - shared_ptr decoder = dynamic_pointer_cast ((*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 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 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::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, DCPTime> > audio = _audio_merger.pull (pull_to); + for (list, 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, 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, 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 piece, DCPTime t) const +optional +Player::subtitles_for_frame (DCPTime time) const { - shared_ptr vc = dynamic_pointer_cast (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 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 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 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 (); + } + + return merge (subtitles); } -DCPTime -Player::content_video_to_dcp (shared_ptr piece, Frame f) const +void +Player::video (weak_ptr wp, ContentVideo video) { - shared_ptr vc = dynamic_pointer_cast (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 = 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 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 piece, DCPTime t) const +void +Player::audio (weak_ptr 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 = wp.lock (); + if (!piece) { + return; + } + + shared_ptr 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, 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 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 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 piece, DCPTime t) const +void +Player::bitmap_text_start (weak_ptr 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 = 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 wp, ContentTextCaption subtitle) { - list > subs = overlaps (time, time + length); + shared_ptr piece = wp.lock (); + if (!piece) { + return; + } - PlayerSubtitles ps (time, length); + PlayerCaption ps; + DCPTime const from (content_time_to_dcp (piece, subtitle.from())); - for (list >::const_iterator j = subs.begin(); j != subs.end(); ++j) { - shared_ptr subtitle_content = dynamic_pointer_cast ((*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 subtitle_decoder = dynamic_pointer_cast ((*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 image = subtitle_decoder->get_image_subtitles (ContentTimePeriod (from, to), starting); - for (list::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 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 = wp.lock (); + if (!piece) { + return; + } - ps.image.push_back (i->sub); - } + DCPTime const dcp_to = content_time_to_dcp (piece, to); - list 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 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 > -Player::get_subtitle_fonts () +void +Player::seek (DCPTime time, bool accurate) { if (!_have_valid_pieces) { setup_pieces (); } - list > fonts; - BOOST_FOREACH (shared_ptr& p, _pieces) { - shared_ptr sc = dynamic_pointer_cast (p->content); - if (sc) { - /* XXX: things may go wrong if there are duplicate font IDs - with different font files. - */ - list > 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 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(); + _last_video_eyes = optional(); + _last_audio_time = optional(); + } + + _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 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, 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 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 subtitles = subtitles_for_frame (time); + if (subtitles) { + pv->set_subtitle (subtitles.get ()); + } + + Video (pv, time); +} + +void +Player::emit_audio (shared_ptr 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 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, DCPTime> +Player::discard_audio (shared_ptr 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(), DCPTime()); + } + shared_ptr 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 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, ContentTime t) +{ + if (_have_valid_pieces) { + setup_pieces (); + } + + BOOST_FOREACH (shared_ptr i, _pieces) { + if (i->content == content) { + return content_time_to_dcp (i, t); + } + } + + DCPOMATIC_ASSERT (false); + return DCPTime (); }