- if (f->audio_stream()) {
- shared_ptr<AudioStream> st = f->audio_stream();
- _matcher.reset (new Matcher (f->log(), st->sample_rate(), f->source_frame_rate()));
- _delay_line.reset (new DelayLine (f->log(), st->channels(), f->audio_delay() * st->sample_rate() / 1000));
- _gain.reset (new Gain (f->log(), f->audio_gain()));
- }
-
- /* Set up the decoder to use the film's set streams */
- _decoders.video->set_subtitle_stream (f->subtitle_stream ());
- if (_decoders.audio) {
- _decoders.audio->set_audio_stream (f->audio_stream ());
- }
-
- if (_matcher) {
- _decoders.video->connect_video (_matcher);
- _matcher->connect_video (_encoder);
- } else {
- _decoders.video->connect_video (_encoder);
- }
-
- if (_matcher && _delay_line && _decoders.audio) {
- _decoders.audio->connect_audio (_delay_line);
- _delay_line->connect_audio (_matcher);
- _matcher->connect_audio (_gain);
- _gain->connect_audio (_encoder);
- }