: Playlist (other, start, cnt, name, hidden)
, _crossfades (*this)
{
- add_property (_crossfades);
+ RegionLock rlock2 (const_cast<AudioPlaylist*> (other.get()));
+ in_set_state++;
+ add_property (_crossfades);
+
+ framepos_t const end = start + cnt - 1;
+
+ /* Audio regions that have been created by the Playlist constructor
+ will currently have the same fade in/out as the regions that they
+ were created from. This is wrong, so reset the fades here.
+ */
+
+ RegionList::iterator ours = regions.begin ();
+
+ for (RegionList::const_iterator i = other->regions.begin(); i != other->regions.end(); ++i) {
+ boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (*i);
+ assert (region);
+
+ framecnt_t fade_in = 64;
+ framecnt_t fade_out = 64;
+ framepos_t position;
+ framecnt_t len;
+ frameoffset_t offset;
+
+ switch (region->coverage (start, end)) {
+ case OverlapNone:
+ continue;
+
+ case OverlapInternal:
+ {
+ framecnt_t const offset = start - region->position ();
+ framecnt_t const trim = region->last_frame() - end;
+ if (region->fade_in()->back()->when > offset) {
+ fade_in = region->fade_in()->back()->when - offset;
+ }
+ if (region->fade_out()->back()->when > trim) {
+ fade_out = region->fade_out()->back()->when - trim;
+ }
+ break;
+ }
+
+ case OverlapStart: {
+ position = region->position() - start;
+ len = end - region->position();
+
+ if (end > region->position() + region->fade_in()->back()->when)
+ fade_in = region->fade_in()->back()->when; //end is after fade-in, preserve the fade-in
+ if (end > region->last_frame() - region->fade_out()->back()->when)
+ fade_out = region->fade_out()->back()->when - ( region->last_frame() - end ); //end is inside the fadeout, preserve the fades endpoint
+ break;
+ }
+
+ case OverlapEnd: {
+ position = 0;
+ offset = start - region->position();
+ len = region->length() - offset;
+
+ if (start < region->last_frame() - region->fade_out()->back()->when) //start is before fade-out, preserve the fadeout
+ fade_out = region->fade_out()->back()->when;
+
+ if (start < region->position() + region->fade_in()->back()->when)
+ fade_in = region->fade_in()->back()->when - (start - region->position()); //end is inside the fade-in, preserve the fade-in endpoint
+ break;
+ }
+
+ case OverlapExternal:
+ fade_in = region->fade_in()->back()->when;
+ fade_out = region->fade_out()->back()->when;
+ break;
+ }
+
+ boost::shared_ptr<AudioRegion> our_region = boost::dynamic_pointer_cast<AudioRegion> (*ours);
+ assert (our_region);
+
+ our_region->set_fade_in_length (fade_in);
+ our_region->set_fade_out_length (fade_out);
+ ++ours;
+ }
+
+ in_set_state--;
+
/* this constructor does NOT notify others (session) */
}
continue;
}
+ if (other->position() == r->position() && other->length() == r->length()) {
+ /* precise overlay of two regions - no xfade */
+ continue;
+ }
if (other->layer() < region->layer()) {
top = region;
return *i;
}
+
+struct crossfade_triple {
+ boost::shared_ptr<Region> old_in;
+ boost::shared_ptr<Region> new_in;
+ boost::shared_ptr<Region> new_out;
+};
+
+void
+AudioPlaylist::copy_dependents (const vector<TwoRegions>& old_and_new, boost::shared_ptr<Playlist> other)
+{
+ boost::shared_ptr<AudioPlaylist> other_audio = boost::dynamic_pointer_cast<AudioPlaylist>(other);
+
+ if (!other_audio) {
+ return;
+ }
+
+ /* our argument is a vector of old and new regions. Each old region
+ might be participant in a crossfade that is already present. Each new
+ region is a copy of the old region, present in the other playlist.
+
+ our task is to find all the relevant xfades in our playlist (involving
+ the "old" regions) and place copies of them in the other playlist.
+ */
+
+ typedef map<boost::shared_ptr<Crossfade>,crossfade_triple> CrossfadeInfo;
+ CrossfadeInfo crossfade_info;
+
+ /* build up a record that links crossfades, old regions and new regions
+ */
+
+ for (vector<TwoRegions>::const_iterator on = old_and_new.begin(); on != old_and_new.end(); ++on) {
+
+ for (Crossfades::iterator i = _crossfades.begin(); i != _crossfades.end(); ++i) {
+
+ if ((*i)->in() == on->first) {
+
+ CrossfadeInfo::iterator cf;
+
+ if ((cf = crossfade_info.find (*i)) != crossfade_info.end()) {
+
+ /* already have a record for the old fade-in region,
+ so note the new fade-in region
+ */
+
+ cf->second.new_in = on->second;
+
+ } else {
+
+ /* add a record of this crossfade, keeping an association
+ with the new fade-in region
+ */
+
+ crossfade_triple ct;
+
+ ct.old_in = on->first;
+ ct.new_in = on->second;
+
+ crossfade_info[*i] = ct;
+ }
+
+ } else if ((*i)->out() == on->first) {
+
+ /* this old region is the fade-out region of this crossfade */
+
+ CrossfadeInfo::iterator cf;
+
+ if ((cf = crossfade_info.find (*i)) != crossfade_info.end()) {
+
+ /* already have a record for this crossfade, so just keep
+ an association for the new fade out region
+ */
+
+ cf->second.new_out = on->second;
+
+ } else {
+
+ /* add a record of this crossfade, keeping an association
+ with the new fade-in region
+ */
+
+ crossfade_triple ct;
+
+ ct.old_in = on->first;
+ ct.new_out = on->second;
+
+ crossfade_info[*i] = ct;
+ }
+ }
+ }
+ }
+
+ for (CrossfadeInfo::iterator ci = crossfade_info.begin(); ci != crossfade_info.end(); ++ci) {
+
+ /* for each crossfade that involves at least two of the old regions,
+ create a new identical crossfade with the new regions
+ */
+
+ if (!ci->second.new_in || !ci->second.new_out) {
+ continue;
+ }
+
+ boost::shared_ptr<Crossfade> new_xfade (new Crossfade (ci->first,
+ boost::dynamic_pointer_cast<AudioRegion>(ci->second.new_in),
+ boost::dynamic_pointer_cast<AudioRegion>(ci->second.new_out)));
+
+ /* add it at the right position */
+
+ new_xfade->set_position (new_xfade->position() + (ci->second.new_in->position() - ci->second.old_in->position()), this);
+ cerr << "Add new xfade to new playlist @ " << new_xfade->position() << " len " << new_xfade->length()
+ << " in = " << new_xfade->in()->name() << " out = " << new_xfade->out()->name() << endl;
+ other_audio->add_crossfade (new_xfade);
+ }
+}
projects / ardour.git / blobdiff