+ _writer->start ();
+ _encoder->begin ();
+
+ DCPTime const frame = DCPTime::from_frames (1, _film->video_frame_rate ());
+ DCPTime const length = _film->length ();
+
+ int burnt_subtitles = 0;
+ int non_burnt_subtitles = 0;
+ BOOST_FOREACH (shared_ptr<const Content> c, _film->content ()) {
+ shared_ptr<const SubtitleContent> sc = dynamic_pointer_cast<const SubtitleContent> (c);
+ if (sc && sc->use_subtitles()) {
+ if (sc->burn_subtitles()) {
+ ++burnt_subtitles;
+ } else {
+ ++non_burnt_subtitles;
+ }
+ }
+ }
+
+ if (non_burnt_subtitles) {
+ _writer->write (_player->get_subtitle_fonts ());
+ }
+
+ for (DCPTime t; t < length; t += frame) {
+ list<shared_ptr<PlayerVideo> > v = _player->get_video (t, true);
+ for (list<shared_ptr<PlayerVideo> >::const_iterator i = v.begin(); i != v.end(); ++i) {
+ _encoder->enqueue (*i);
+ }
+
+ shared_ptr<AudioBuffers> audio = _player->get_audio (t, frame, true);
+ if (audio) {
+ _writer->write (audio);
+ }
+
+ if (non_burnt_subtitles) {
+ _writer->write (_player->get_subtitles (t, frame, true, false));
+ }
+ }
+
+ /* XXX: we should be passing through details of positions, at least... */
+ BOOST_FOREACH (shared_ptr<dcp::ReelAsset> i, _player->get_reel_assets ()) {
+ _writer->write (i);
+ }