X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fplayer.cc;h=035af81feba6215ee61a52eac3fa453f3fa205f8;hb=b52491bd55097c343cd8514612d429a55d878be1;hp=f5d851c96f1b5f47a637384b25b15ed4311d82a6;hpb=1858190cff2f960f3d1f0a5cc02c69da86088f5b;p=dcpomatic.git diff --git a/src/lib/player.cc b/src/lib/player.cc index f5d851c96..035af81fe 100644 --- a/src/lib/player.cc +++ b/src/lib/player.cc @@ -1,34 +1,27 @@ /* - Copyright (C) 2013-2015 Carl Hetherington + Copyright (C) 2013-2017 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" @@ -40,12 +33,26 @@ #include "content_video.h" #include "player_video.h" #include "frame_rate_change.h" -#include "dcp_content.h" -#include "dcp_decoder.h" -#include "dcp_subtitle_content.h" -#include "dcp_subtitle_decoder.h" #include "audio_processor.h" #include "playlist.h" +#include "referenced_reel_asset.h" +#include "decoder_factory.h" +#include "decoder.h" +#include "video_decoder.h" +#include "audio_decoder.h" +#include "subtitle_content.h" +#include "subtitle_decoder.h" +#include "ffmpeg_content.h" +#include "audio_content.h" +#include "content_subtitle.h" +#include "dcp_decoder.h" +#include "image_decoder.h" +#include "resampler.h" +#include "compose.hpp" +#include +#include +#include +#include #include #include #include @@ -53,7 +60,7 @@ #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; @@ -69,6 +76,7 @@ using boost::shared_ptr; using boost::weak_ptr; using boost::dynamic_pointer_cast; using boost::optional; +using boost::scoped_ptr; Player::Player (shared_ptr film, shared_ptr playlist) : _film (film) @@ -78,6 +86,8 @@ Player::Player (shared_ptr film, shared_ptr playlist , _ignore_audio (false) , _always_burn_subtitles (false) , _fast (false) + , _play_referenced (false) + , _audio_merger (_film->audio_frame_rate()) { _film_changed_connection = _film->Changed.connect (bind (&Player::film_changed, this, _1)); _playlist_changed_connection = _playlist->Changed.connect (bind (&Player::playlist_changed, this)); @@ -85,12 +95,13 @@ Player::Player (shared_ptr film, shared_ptr playlist set_video_container_size (_film->frame_size ()); film_changed (Film::AUDIO_PROCESSOR); + + seek (DCPTime (), true); } void Player::setup_pieces () { - list > old_pieces = _pieces; _pieces.clear (); BOOST_FOREACH (shared_ptr i, _playlist->content ()) { @@ -99,96 +110,64 @@ Player::setup_pieces () continue; } - shared_ptr decoder; - optional frc; + shared_ptr decoder = decoder_factory (i, _film->log()); + FrameRateChange frc (i->active_video_frame_rate(), _film->video_frame_rate()); - /* 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; - } - - 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 (); } - /* FFmpeg */ - shared_ptr fc = dynamic_pointer_cast (i); - if (fc) { - decoder.reset (new FFmpegDecoder (fc, _film->log(), _fast)); - frc = FrameRateChange (fc->video_frame_rate(), _film->video_frame_rate()); + if (decoder->audio && _ignore_audio) { + decoder->audio->set_ignore (); } - shared_ptr dc = dynamic_pointer_cast (i); - if (dc) { - decoder.reset (new DCPDecoder (dc, _fast)); - frc = FrameRateChange (dc->video_frame_rate(), _film->video_frame_rate()); + shared_ptr dcp = dynamic_pointer_cast (decoder); + if (dcp && _play_referenced) { + dcp->set_decode_referenced (); } - /* 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; - } - } - - if (!decoder) { - decoder.reset (new ImageDecoder (ic)); - } - - frc = FrameRateChange (ic->video_frame_rate(), _film->video_frame_rate()); - } + shared_ptr piece (new Piece (i, decoder, frc)); + _pieces.push_back (piece); - /* SndfileContent */ - shared_ptr sc = dynamic_pointer_cast (i); - if (sc) { - decoder.reset (new SndfileDecoder (sc, _fast)); - frc = best_overlap_frc; + if (decoder->video) { + decoder->video->Data.connect (bind (&Player::video, this, weak_ptr (piece), _1)); } - /* 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->ImageData.connect (bind (&Player::image_subtitle, this, weak_ptr (piece), _1)); + decoder->subtitle->TextData.connect (bind (&Player::text_subtitle, this, weak_ptr (piece), _1)); } + } - shared_ptr vd = dynamic_pointer_cast (decoder); - if (vd && _ignore_video) { - vd->set_ignore_video (); + 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 ()); + } } + } - shared_ptr ad = dynamic_pointer_cast (decoder); - if (ad && _ignore_audio) { - ad->set_ignore_audio (); + if (!_play_referenced) { + BOOST_FOREACH (shared_ptr i, _pieces) { + shared_ptr dc = dynamic_pointer_cast (i->content); + if (dc) { + if (dc->reference_video()) { + _no_video.push_back (DCPTimePeriod (dc->position(), dc->end())); + } + if (dc->reference_audio()) { + _no_audio.push_back (DCPTimePeriod (dc->position(), dc->end())); + } + } } - - _pieces.push_back (shared_ptr (new Piece (i, decoder, frc.get ()))); } _have_valid_pieces = true; @@ -208,26 +187,36 @@ 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 == DCPContentProperty::NEEDS_ASSETS || + property == DCPContentProperty::NEEDS_KDM || + property == SubtitleContentProperty::COLOUR || + property == SubtitleContentProperty::OUTLINE || + property == SubtitleContentProperty::SHADOW || + property == SubtitleContentProperty::EFFECT_COLOUR || + property == FFmpegContentProperty::SUBTITLE_STREAM || + property == VideoContentProperty::COLOUR_CONVERSION ) { _have_valid_pieces = false; Changed (frequent); } else if ( - property == SubtitleContentProperty::USE_SUBTITLES || - property == SubtitleContentProperty::SUBTITLE_X_OFFSET || - property == SubtitleContentProperty::SUBTITLE_Y_OFFSET || - property == SubtitleContentProperty::SUBTITLE_X_SCALE || - property == SubtitleContentProperty::SUBTITLE_Y_SCALE || + property == SubtitleContentProperty::LINE_SPACING || + property == SubtitleContentProperty::OUTLINE_WIDTH || + property == SubtitleContentProperty::Y_SCALE || + property == SubtitleContentProperty::FADE_IN || + property == SubtitleContentProperty::FADE_OUT || + property == ContentProperty::VIDEO_FRAME_RATE || + property == SubtitleContentProperty::USE || + property == SubtitleContentProperty::X_OFFSET || + property == SubtitleContentProperty::Y_OFFSET || + property == SubtitleContentProperty::X_SCALE || property == SubtitleContentProperty::FONTS || - property == VideoContentProperty::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 == VideoContentProperty::CROP || + property == VideoContentProperty::SCALE || + property == VideoContentProperty::FADE_IN || + property == VideoContentProperty::FADE_OUT ) { Changed (frequent); @@ -239,7 +228,7 @@ Player::set_video_container_size (dcp::Size s) { _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 (); } @@ -258,7 +247,13 @@ Player::film_changed (Film::Property p) last time we were run. */ - if (p == Film::CONTAINER || p == Film::VIDEO_FRAME_RATE) { + if (p == Film::CONTAINER) { + Changed (false); + } else if (p == Film::VIDEO_FRAME_RATE) { + /* Pieces contain a FrameRateChange which contains the DCP frame rate, + so we need new pieces here. + */ + _have_valid_pieces = false; Changed (false); } else if (p == Film::AUDIO_PROCESSOR) { if (_film->audio_processor ()) { @@ -298,7 +293,8 @@ Player::transform_image_subtitles (list subs) const scaled_size, dcp::YUV_TO_RGB_REC601, i->image->pixel_format (), - true + true, + _fast ), Position ( lrint (_video_container_size.width * i->rectangle.x), @@ -312,12 +308,11 @@ Player::transform_image_subtitles (list subs) const } shared_ptr -Player::black_player_video_frame (DCPTime time) const +Player::black_player_video_frame () const { return shared_ptr ( new PlayerVideo ( shared_ptr (new RawImageProxy (_black_image)), - time, Crop (), optional (), _video_container_size, @@ -329,357 +324,623 @@ Player::black_player_video_frame (DCPTime time) const ); } -/** @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 max (DCPTime (), 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 */ + DCPTime const d = DCPTime::from_frames (f, _film->audio_frame_rate()) - DCPTime (piece->content->trim_start (), piece->frc); + return max (DCPTime (), d + piece->content->position ()); +} + +ContentTime +Player::dcp_to_content_time (shared_ptr 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)); + } + } - PlayerSubtitles ps = get_subtitles (time, DCPTime::from_frames (1, _film->video_frame_rate ()), false, true); + return fonts; +} - list sub_images; +/** Set this player never to produce any video data */ +void +Player::set_ignore_video () +{ + _ignore_video = true; +} - /* Image subtitles */ - list c = transform_image_subtitles (ps.image); - copy (c.begin(), c.end(), back_inserter (sub_images)); +/** Set this player never to produce any audio data */ +void +Player::set_ignore_audio () +{ + _ignore_audio = true; +} - /* Text subtitles (rendered to an image) */ - if (!ps.text.empty ()) { - list s = render_subtitles (ps.text, ps.fonts, _video_container_size); - copy (s.begin (), s.end (), back_inserter (sub_images)); - } +/** Set whether or not this player should always burn text subtitles into the image, + * regardless of the content settings. + * @param burn true to always burn subtitles, false to obey content settings. + */ +void +Player::set_always_burn_subtitles (bool burn) +{ + _always_burn_subtitles = burn; +} - optional subtitles; - if (!sub_images.empty ()) { - subtitles = merge (sub_images); - } +void +Player::set_fast () +{ + _fast = true; + _have_valid_pieces = false; +} + +void +Player::set_play_referenced () +{ + _play_referenced = true; + _have_valid_pieces = false; +} - /* Find pieces containing video which is happening now */ +list +Player::get_reel_assets () +{ + list a; - list > ov = overlaps ( - time, - time + DCPTime::from_frames (1, _film->video_frame_rate ()) - DCPTime::delta() - ); + BOOST_FOREACH (shared_ptr i, _playlist->content ()) { + shared_ptr j = dynamic_pointer_cast (i); + if (!j) { + continue; + } - list > pvf; + scoped_ptr decoder; + try { + decoder.reset (new DCPDecoder (j, _film->log())); + } catch (...) { + return a; + } - if (ov.empty ()) { - /* No video content at this time */ - pvf.push_back (black_player_video_frame (time)); - } else { - /* 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); + 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 (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 (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 (); } } - if (subtitles) { - BOOST_FOREACH (shared_ptr p, pvf) { - p->set_subtitle (subtitles.get ()); + return a; +} + +list > +Player::overlaps (DCPTime from, DCPTime to, boost::function valid) +{ + if (!_have_valid_pieces) { + setup_pieces (); + } + + list > overlaps; + BOOST_FOREACH (shared_ptr i, _pieces) { + if (valid (i->content.get ()) && i->content->position() < to && i->content->end() > from) { + overlaps.push_back (i); } } - return pvf; + return overlaps; } -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 ()); + shared_ptr earliest; + DCPTime earliest_content; - shared_ptr audio (new AudioBuffers (_film->audio_channels(), length_frames)); - audio->make_silent (); + BOOST_FOREACH (shared_ptr i, _pieces) { + if (!i->done) { + DCPTime const t = i->content->position() + DCPTime (i->decoder->position(), i->frc); + if (!earliest || t < earliest_content) { + earliest_content = t; + earliest = i; + } + } + } - list > ov = overlaps (time, time + length); - if (ov.empty ()) { - return audio; + if (!earliest) { + /* No more content; fill up with silent black */ + DCPTimePeriod remaining_video (DCPTime(), _playlist->length()); + if (_last_time) { + remaining_video.from = _last_time.get() + one_video_frame(); + } + fill_video (remaining_video); + fill_audio (DCPTimePeriod (_last_audio_time, _playlist->length())); + return true; } - for (list >::iterator i = ov.begin(); i != ov.end(); ++i) { + earliest->done = earliest->decoder->pass (); + if (earliest->done && earliest->content->audio) { + /* Flush the Player audio system for this piece */ + BOOST_FOREACH (AudioStreamPtr i, earliest->content->audio->streams()) { + audio_flush (earliest, i); + } + } - shared_ptr content = dynamic_pointer_cast ((*i)->content); - DCPOMATIC_ASSERT (content); - shared_ptr decoder = dynamic_pointer_cast ((*i)->decoder); - DCPOMATIC_ASSERT (decoder); + /* Emit any audio that is ready */ - /* The time that we should request from the content */ - DCPTime request = time - DCPTime::from_seconds (content->audio_delay() / 1000.0); - Frame request_frames = length_frames; - DCPTime offset; - if (request < DCPTime ()) { - /* We went off the start of the content, so we will need to offset - the stuff we get back. - */ - offset = -request; - request_frames += request.frames_round (_film->audio_frame_rate ()); - if (request_frames < 0) { - request_frames = 0; - } - request = DCPTime (); + DCPTime pull_from = _playlist->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_from) { + pull_from = i->second.last_push_end; } + } + + list, DCPTime> > audio = _audio_merger.pull (pull_from); + for (list, DCPTime> >::iterator i = audio.begin(); i != audio.end(); ++i) { + DCPOMATIC_ASSERT (i->second >= _last_audio_time); + fill_audio (DCPTimePeriod (_last_audio_time, i->second)); + Audio (i->first, i->second); + _last_audio_time = i->second + DCPTime::from_frames(i->first->frames(), _film->audio_frame_rate()); + } - Frame const content_frame = dcp_to_resampled_audio (*i, request); + return false; +} - BOOST_FOREACH (AudioStreamPtr j, content->audio_streams ()) { +void +Player::video (weak_ptr wp, ContentVideo video) +{ + shared_ptr piece = wp.lock (); + if (!piece) { + return; + } - if (j->channels() == 0) { - /* Some content (e.g. DCPs) can have streams with no channels */ - continue; - } + FrameRateChange frc(piece->content->active_video_frame_rate(), _film->video_frame_rate()); + if (frc.skip && (video.frame % 2) == 1) { + return; + } - /* Audio from this piece's decoder stream (which might be more or less than what we asked for) */ - ContentAudio all = decoder->get_audio (j, content_frame, request_frames, accurate); + /* Time and period of the frame we will emit */ + DCPTime const time = content_video_to_dcp (piece, video.frame); + DCPTimePeriod const period (time, time + one_video_frame()); - /* Gain */ - if (content->audio_gain() != 0) { - shared_ptr gain (new AudioBuffers (all.audio)); - gain->apply_gain (content->audio_gain ()); - all.audio = gain; - } + /* Discard if it's outside the content's period */ + if (time < piece->content->position() || time >= piece->content->end()) { + return; + } - /* 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) - ); - } - } - } + /* Get any subtitles */ - if (_audio_processor) { - dcp_mapped = _audio_processor->run (dcp_mapped, _film->audio_channels ()); - } + optional subtitles; + + for (list >::const_iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) { - all.audio = dcp_mapped; + if (!i->second.overlap (period)) { + continue; + } + + list sub_images; - audio->accumulate_frames ( - all.audio.get(), - content_frame - all.frame, - offset.frames_round (_film->audio_frame_rate()), - min (Frame (all.audio->frames()), request_frames) - ); + /* Image subtitles */ + list c = transform_image_subtitles (i->first.image); + copy (c.begin(), c.end(), back_inserter (sub_images)); + + /* Text subtitles (rendered to an image) */ + if (!i->first.text.empty ()) { + list s = render_subtitles (i->first.text, i->first.fonts, _video_container_size, time); + copy (s.begin (), s.end (), back_inserter (sub_images)); + } + + if (!sub_images.empty ()) { + subtitles = merge (sub_images); } } - return audio; -} + /* Fill gaps */ -Frame -Player::dcp_to_content_video (shared_ptr piece, DCPTime t) const -{ - shared_ptr vc = dynamic_pointer_cast (piece->content); - 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)); + if (_last_time) { + fill_video (DCPTimePeriod (_last_time.get() + one_video_frame(), time)); + } - /* 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). + _last_video.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 () + ) + ); - 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 (); -} + if (subtitles) { + _last_video->set_subtitle (subtitles.get ()); + } -DCPTime -Player::content_video_to_dcp (shared_ptr piece, Frame f) const -{ - shared_ptr vc = dynamic_pointer_cast (piece->content); - /* See comment in dcp_to_content_video */ - DCPTime const d = DCPTime::from_frames (f * piece->frc.factor(), piece->frc.dcp) - DCPTime (piece->content->trim_start (), piece->frc); - return max (DCPTime (), d + piece->content->position ()); + _last_time = time; + + Video (_last_video, *_last_time); + + /* Discard any subtitles we no longer need */ + + for (list >::iterator i = _subtitles.begin (); i != _subtitles.end(); ) { + list >::iterator tmp = i; + ++tmp; + + if (i->second.to < time) { + _subtitles.erase (i); + } + + i = tmp; + } } -Frame -Player::dcp_to_resampled_audio (shared_ptr piece, DCPTime t) const +void +Player::audio_flush (shared_ptr piece, AudioStreamPtr stream) { - 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 ()); + shared_ptr content = piece->content->audio; + DCPOMATIC_ASSERT (content); + + shared_ptr r = resampler (content, stream, false); + if (!r) { + return; + } + + pair, Frame> ro = r->flush (); + ContentAudio content_audio; + content_audio.audio = ro.first; + content_audio.frame = ro.second; + + /* Compute time in the DCP */ + DCPTime time = resampled_audio_to_dcp (piece, content_audio.frame) + DCPTime::from_seconds (content->delay() / 1000.0); + + audio_transform (content, stream, content_audio, time); } -ContentTime -Player::dcp_to_content_subtitle (shared_ptr piece, DCPTime t) const +/** Do our common processing on some audio */ +void +Player::audio_transform (shared_ptr content, AudioStreamPtr stream, ContentAudio content_audio, DCPTime time) { - 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()); + /* Gain */ + + if (content->gain() != 0) { + shared_ptr gain (new AudioBuffers (content_audio.audio)); + gain->apply_gain (content->gain ()); + content_audio.audio = gain; + } + + /* Remap */ + + shared_ptr dcp_mapped (new AudioBuffers (_film->audio_channels(), content_audio.audio->frames())); + dcp_mapped->make_silent (); + + AudioMapping map = stream->mapping (); + for (int i = 0; i < map.input_channels(); ++i) { + for (int j = 0; j < dcp_mapped->channels(); ++j) { + if (map.get (i, static_cast (j)) > 0) { + dcp_mapped->accumulate_channel ( + content_audio.audio.get(), + i, + static_cast (j), + map.get (i, static_cast (j)) + ); + } + } + } + + content_audio.audio = dcp_mapped; + + /* 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()); } -/** @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::audio (weak_ptr wp, AudioStreamPtr stream, ContentAudio content_audio) { - list > subs = overlaps (time, time + length); + shared_ptr piece = wp.lock (); + if (!piece) { + return; + } - PlayerSubtitles ps (time, length); + shared_ptr content = piece->content->audio; + DCPOMATIC_ASSERT (content); - 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; + /* Resample */ + if (stream->frame_rate() != content->resampled_frame_rate()) { + shared_ptr r = resampler (content, stream, true); + pair, Frame> ro = r->run (content_audio.audio, content_audio.frame); + content_audio.audio = ro.first; + content_audio.frame = ro.second; + } + + /* XXX: end-trimming used to be checked here */ + + /* Compute time in the DCP */ + DCPTime time = resampled_audio_to_dcp (piece, content_audio.frame) + DCPTime::from_seconds (content->delay() / 1000.0); + + /* Remove anything that comes before the start of the content */ + if (time < piece->content->position()) { + DCPTime const discard_time = piece->content->position() - time; + Frame discard_frames = discard_time.frames_round(_film->audio_frame_rate()); + Frame remaining_frames = content_audio.audio->frames() - discard_frames; + if (remaining_frames <= 0) { + /* This audio is entirely discarded */ + return; } + shared_ptr cut (new AudioBuffers (content_audio.audio->channels(), remaining_frames)); + cut->copy_from (content_audio.audio.get(), remaining_frames, discard_frames, 0); + content_audio.audio = cut; + time += discard_time; + } + + audio_transform (content, stream, content_audio, time); +} - 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 ()); +void +Player::image_subtitle (weak_ptr wp, ContentImageSubtitle subtitle) +{ + shared_ptr piece = wp.lock (); + if (!piece) { + return; + } - list image = subtitle_decoder->get_image_subtitles (ContentTimePeriod (from, to), starting); - for (list::iterator i = image.begin(); i != image.end(); ++i) { + /* Apply content's subtitle offsets */ + subtitle.sub.rectangle.x += piece->content->subtitle->x_offset (); + subtitle.sub.rectangle.y += piece->content->subtitle->y_offset (); - /* Apply content's subtitle offsets */ - i->sub.rectangle.x += subtitle_content->subtitle_x_offset (); - i->sub.rectangle.y += subtitle_content->subtitle_y_offset (); + /* Apply content's subtitle scale */ + subtitle.sub.rectangle.width *= piece->content->subtitle->x_scale (); + subtitle.sub.rectangle.height *= piece->content->subtitle->y_scale (); - /* Apply content's subtitle scale */ - i->sub.rectangle.width *= subtitle_content->subtitle_x_scale (); - i->sub.rectangle.height *= subtitle_content->subtitle_y_scale (); + /* Apply a corrective translation to keep the subtitle centred after that scale */ + subtitle.sub.rectangle.x -= subtitle.sub.rectangle.width * (piece->content->subtitle->x_scale() - 1); + subtitle.sub.rectangle.y -= subtitle.sub.rectangle.height * (piece->content->subtitle->y_scale() - 1); - /* 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); + PlayerSubtitles ps; + ps.image.push_back (subtitle.sub); + DCPTimePeriod period (content_time_to_dcp (piece, subtitle.period().from), content_time_to_dcp (piece, subtitle.period().to)); - ps.image.push_back (i->sub); + if (piece->content->subtitle->use() && (piece->content->subtitle->burn() || _always_burn_subtitles)) { + _subtitles.push_back (make_pair (ps, period)); + } else { + Subtitle (ps, period); + } +} + +void +Player::text_subtitle (weak_ptr wp, ContentTextSubtitle subtitle) +{ + shared_ptr piece = wp.lock (); + if (!piece) { + return; + } + + PlayerSubtitles ps; + DCPTimePeriod const period (content_time_to_dcp (piece, subtitle.period().from), content_time_to_dcp (piece, subtitle.period().to)); + + 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); - 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 ()); - } + /* Then express aspect ratio changes */ + if (fabs (1.0 - xs / ys) > dcp::ASPECT_ADJUST_EPSILON) { + s.set_aspect_adjust (xs / ys); } + + s.set_in (dcp::Time(period.from.seconds(), 1000)); + s.set_out (dcp::Time(period.to.seconds(), 1000)); + ps.text.push_back (SubtitleString (s, piece->content->subtitle->outline_width())); + ps.add_fonts (piece->content->subtitle->fonts ()); } - return ps; + if (piece->content->subtitle->use() && (piece->content->subtitle->burn() || _always_burn_subtitles)) { + _subtitles.push_back (make_pair (ps, period)); + } else { + Subtitle (ps, period); + } } -list > -Player::get_subtitle_fonts () +void +Player::seek (DCPTime time, bool accurate) { - if (!_have_valid_pieces) { - setup_pieces (); + if (_audio_processor) { + _audio_processor->flush (); } - 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)); + BOOST_FOREACH (shared_ptr i, _pieces) { + if (i->content->position() <= time && time < i->content->end()) { + i->decoder->seek (dcp_to_content_time (i, time), accurate); + i->done = false; } } - return fonts; + if (accurate) { + _last_time = time - one_video_frame (); + } else { + _last_time = optional (); + } } -/** Set this player never to produce any video data */ -void -Player::set_ignore_video () +shared_ptr +Player::resampler (shared_ptr content, AudioStreamPtr stream, bool create) { - _ignore_video = true; + ResamplerMap::const_iterator i = _resamplers.find (make_pair (content, stream)); + if (i != _resamplers.end ()) { + return i->second; + } + + if (!create) { + return shared_ptr (); + } + + LOG_GENERAL ( + "Creating new resampler from %1 to %2 with %3 channels", + stream->frame_rate(), + content->resampled_frame_rate(), + stream->channels() + ); + + shared_ptr r ( + new Resampler (stream->frame_rate(), content->resampled_frame_rate(), stream->channels()) + ); + + _resamplers[make_pair(content, stream)] = r; + return r; } -/** Set this player never to produce any audio data */ void -Player::set_ignore_audio () +Player::fill_video (DCPTimePeriod period) { - _ignore_audio = true; + /* XXX: this may not work for 3D */ + BOOST_FOREACH (DCPTimePeriod i, subtract(period, _no_video)) { + for (DCPTime j = i.from; j < i.to; j += one_video_frame()) { + if (_playlist->video_content_at(j) && _last_video) { + Video (shared_ptr (new PlayerVideo (*_last_video)), j); + } else { + Video (black_player_video_frame(), j); + } + } + } } -/** 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::fill_audio (DCPTimePeriod period) { - _always_burn_subtitles = burn; + BOOST_FOREACH (DCPTimePeriod i, subtract(period, _no_audio)) { + DCPTime t = i.from; + while (t < i.to) { + DCPTime block = min (DCPTime::from_seconds (0.5), i.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 (); + Audio (silence, t); + } + t += block; + } + } } -void -Player::set_fast () +DCPTime +Player::one_video_frame () const { - _fast = true; - _have_valid_pieces = false; + return DCPTime::from_frames (1, _film->video_frame_rate ()); }