+
+/** @return User-visible names of each of our audio channels */
+vector<NamedChannel>
+AudioContent::channel_names () const
+{
+ vector<NamedChannel> n;
+
+ int index = 0;
+ int stream = 1;
+ for (auto i: streams()) {
+ for (int j = 0; j < i->channels(); ++j) {
+ n.push_back (NamedChannel(String::compose ("%1:%2", stream, j + 1), index++));
+ }
+ ++stream;
+ }
+
+ return n;
+}
+
+
+void
+AudioContent::add_properties (shared_ptr<const Film> film, list<UserProperty>& p) const
+{
+ shared_ptr<const AudioStream> stream;
+ if (streams().size() == 1) {
+ stream = streams().front();
+ }
+
+ if (stream) {
+ p.push_back (UserProperty(UserProperty::AUDIO, _("Channels"), stream->channels()));
+ p.push_back (UserProperty(UserProperty::AUDIO, _("Content audio sample rate"), stream->frame_rate(), _("Hz")));
+ }
+
+ FrameRateChange const frc (_parent->active_video_frame_rate(film), film->video_frame_rate());
+ ContentTime const c (_parent->full_length(film), frc);
+
+ p.push_back (
+ UserProperty (UserProperty::LENGTH, _("Full length in video frames at content rate"), c.frames_round(frc.source))
+ );
+
+ if (stream) {
+ p.push_back (
+ UserProperty (
+ UserProperty::LENGTH,
+ _("Full length in audio samples at content rate"),
+ c.frames_round (stream->frame_rate ())
+ )
+ );
+ }
+
+ p.push_back (UserProperty(UserProperty::AUDIO, _("DCP sample rate"), resampled_frame_rate(film), _("Hz")));
+ p.push_back (UserProperty(UserProperty::LENGTH, _("Full length in video frames at DCP rate"), c.frames_round (frc.dcp)));
+
+ if (stream) {
+ p.push_back (
+ UserProperty (
+ UserProperty::LENGTH,
+ _("Full length in audio samples at DCP rate"),
+ c.frames_round(resampled_frame_rate(film))
+ )
+ );
+ }
+}
+
+
+void
+AudioContent::set_streams (vector<AudioStreamPtr> streams)