+ }
+ } else {
+ list<int> mapped;
+ BOOST_FOREACH (shared_ptr<Content> i, content ()) {
+ shared_ptr<const AudioContent> ac = dynamic_pointer_cast<const AudioContent> (i);
+ if (ac) {
+ list<int> c = ac->audio_mapping().mapped_output_channels ();
+ copy (c.begin(), c.end(), back_inserter (mapped));
+ }
+ }
+
+ mapped.sort ();
+ mapped.unique ();
+
+ /* Count them */
+
+ for (list<int>::const_iterator i = mapped.begin(); i != mapped.end(); ++i) {
+ if (*i >= audio_channels()) {
+ /* This channel is mapped but is not included in the DCP */
+ continue;
+ }
+
+ if (static_cast<dcp::Channel> (*i) == dcp::LFE) {
+ ++lfe;
+ } else {
+ ++non_lfe;
+ }