unsigned channels = new_config.channel_config->get_n_chans();
_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 (parent.timespan->get_length () * config.format->sample_rate () / (double) parent.session.nominal_frame_rate ())));
+ (framecnt_t) ceil (duration * config.format->sample_rate () / (double) sample_rate)));
+ chunker->add_output (analyser);
parent.add_analyser (config.filename->get_path (config.format), analyser);
}
}
}
+void
+ExportGraphBuilder::SFC::set_peak (float gain)
+{
+ if (_analyse) {
+ analyser->set_normalization_gain (gain);
+ }
+}
+
ExportGraphBuilder::FloatSinkPtr
ExportGraphBuilder::SFC::sink ()
{
if (_analyse) {
- return analyser;
+ return chunker;
} else if (data_width == 8 || data_width == 16) {
return short_converter;
} else if (data_width == 24 || data_width == 32) {
void
ExportGraphBuilder::Normalizer::start_post_processing()
{
- normalizer->set_peak (peak_reader->get_peak());
+ const float gain = normalizer->set_peak (peak_reader->get_peak());
+ for (boost::ptr_list<SFC>::iterator i = children.begin(); i != children.end(); ++i) {
+ (*i).set_peak (gain);
+ }
tmp_file->seek (0, SEEK_SET);
tmp_file->add_output (normalizer);
parent.normalizers.push_back (this);