+ _analyse = config.format->analyse();
+ if (_analyse) {
+ framecnt_t sample_rate = parent.session.nominal_frame_rate();
+ framecnt_t sb = config.format->silence_beginning_at (parent.timespan->get_start(), sample_rate);
+ framecnt_t se = config.format->silence_end_at (parent.timespan->get_end(), sample_rate);
+ framecnt_t duration = parent.timespan->get_length () + sb + se;
+ max_frames = min ((framecnt_t) 8192 * channels, max ((framecnt_t) 4096 * channels, max_frames));
+ chunker.reset (new Chunker<Sample> (max_frames));
+ analyser.reset (new Analyser (config.format->sample_rate(), channels, max_frames,
+ (framecnt_t) ceil (duration * config.format->sample_rate () / (double) sample_rate)));
+ chunker->add_output (analyser);
+
+ config.filename->set_channel_config (config.channel_config);
+ parent.add_analyser (config.filename->get_path (config.format), analyser);
+ }