- source = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createReadable
- (*session, path, n,
- (mode == ImportAsTapeTrack ?
- AudioFileSource::Destructive :
- AudioFileSource::Flag (0))));
+
+ /* check if we have this thing embedded already */
+
+ boost::shared_ptr<Source> s;
+
+ if ((s = session->source_by_path_and_channel (path, n)) == 0) {
+ source = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createReadable
+ (DataType::AUDIO, *session, path, n,
+ (mode == ImportAsTapeTrack ?
+ AudioFileSource::Destructive :
+ AudioFileSource::Flag (0))));
+ } else {
+ source = boost::dynamic_pointer_cast<AudioFileSource> (s);
+ }