fix up escaping of strings in TOC files (suggested by andreas ruge)
[ardour.git] / libs / ardour / audio_playlist.cc
index e120ebb5ab15cf097bcffe078965cd9186d3e84d..56f2c4fe83bf3a0cd0c76eda6d1be3da3d427b30 100644 (file)
@@ -27,6 +27,7 @@
 #include "ardour/audioplaylist.h"
 #include "ardour/audioregion.h"
 #include "ardour/crossfade.h"
+#include "ardour/region_sorters.h"
 #include "ardour/session.h"
 #include "pbd/enumwriter.h"
 
@@ -53,7 +54,7 @@ CrossfadeListProperty::CrossfadeListProperty (AudioPlaylist& pl)
         : SequenceProperty<std::list<boost::shared_ptr<Crossfade> > > (Properties::crossfades.property_id, boost::bind (&AudioPlaylist::update, &pl, _1))
         , _playlist (pl)
 {
-       
+
 }
 
 CrossfadeListProperty::CrossfadeListProperty (CrossfadeListProperty const & p)
@@ -108,8 +109,12 @@ AudioPlaylist::AudioPlaylist (Session& session, const XMLNode& node, bool hidden
        add_property (_crossfades);
 
        in_set_state++;
-       set_state (node, Stateful::loading_state_version);
+       if (set_state (node, Stateful::loading_state_version)) {
+               throw failed_constructor();
+       }
        in_set_state--;
+
+       relayer ();
 }
 
 AudioPlaylist::AudioPlaylist (Session& session, string name, bool hidden)
@@ -124,7 +129,7 @@ AudioPlaylist::AudioPlaylist (boost::shared_ptr<const AudioPlaylist> other, stri
        , _crossfades (*this)
 {
        add_property (_crossfades);
-       
+
        RegionList::const_iterator in_o  = other->regions.begin();
        RegionList::iterator in_n = regions.begin();
 
@@ -169,7 +174,7 @@ AudioPlaylist::AudioPlaylist (boost::shared_ptr<const AudioPlaylist> other, fram
 {
        RegionLock rlock2 (const_cast<AudioPlaylist*> (other.get()));
        in_set_state++;
-       
+
        add_property (_crossfades);
 
        framepos_t const end = start + cnt - 1;
@@ -187,9 +192,6 @@ AudioPlaylist::AudioPlaylist (boost::shared_ptr<const AudioPlaylist> other, fram
 
                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:
@@ -209,29 +211,22 @@ AudioPlaylist::AudioPlaylist (boost::shared_ptr<const AudioPlaylist> other, fram
                }
 
                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;
 
+               case OverlapEnd: {
                        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;
@@ -268,6 +263,9 @@ AudioPlaylist::read (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, fr
 {
        framecnt_t ret = cnt;
 
+       DEBUG_TRACE (DEBUG::AudioPlayback, string_compose ("Playlist %1 read @ %2 for %3, channel %4, regions %5 xfades %6\n",
+                                                          name(), start, cnt, chan_n, regions.size(), _crossfades.size()));
+
        /* optimizing this memset() away involves a lot of conditionals
           that may well cause more of a hit due to cache misses
           and related stuff than just doing this here.
@@ -290,16 +288,10 @@ AudioPlaylist::read (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, fr
        Glib::RecMutex::Lock rm (region_lock);
 
        framepos_t const end = start + cnt - 1;
-       framecnt_t read_frames = 0;
-       framecnt_t skip_frames = 0;
-       _read_data_count = 0;
-
-       _read_data_count = 0;
 
-       RegionList* rlist = regions_to_read (start, start+cnt);
+       boost::shared_ptr<RegionList> rlist = regions_to_read (start, start+cnt);
 
        if (rlist->empty()) {
-               delete rlist;
                return cnt;
        }
 
@@ -314,9 +306,17 @@ AudioPlaylist::read (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, fr
                 }
        }
 
+       DEBUG_TRACE (DEBUG::AudioPlayback, string_compose ("Checking %1 xfades\n", _crossfades.size()));
+
        for (Crossfades::iterator i = _crossfades.begin(); i != _crossfades.end(); ++i) {
+               DEBUG_TRACE (DEBUG::AudioPlayback, string_compose ("%1 check xfade between %2 and %3 ... [ %4 ... %5 | %6 ... %7]\n",
+                                                                  name(), (*i)->out()->name(), (*i)->in()->name(), 
+                                                                  (*i)->first_frame(), (*i)->last_frame(),
+                                                                  start, end));
                if ((*i)->coverage (start, end) != OverlapNone) {
                        relevant_xfades[(*i)->upper_layer()].push_back (*i);
+                       DEBUG_TRACE (DEBUG::AudioPlayback, string_compose ("\t\txfade is relevant (coverage = %2), place on layer %1\n",
+                                                                          (*i)->upper_layer(), enum_2_string ((*i)->coverage (start, end))));
                }
        }
 
@@ -333,6 +333,8 @@ AudioPlaylist::read (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, fr
 
        for (vector<uint32_t>::iterator l = relevant_layers.begin(); l != relevant_layers.end(); ++l) {
 
+               DEBUG_TRACE (DEBUG::AudioPlayback, string_compose ("read for layer %1\n", *l));
+
                vector<boost::shared_ptr<Region> > r (relevant_regions[*l]);
                vector<boost::shared_ptr<Crossfade> >& x (relevant_xfades[*l]);
 
@@ -341,20 +343,15 @@ AudioPlaylist::read (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, fr
                        boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(*i);
                         DEBUG_TRACE (DEBUG::AudioPlayback, string_compose ("read from region %1\n", ar->name()));
                        assert(ar);
-                       ar->read_at (buf, mixdown_buffer, gain_buffer, start, cnt, chan_n, read_frames, skip_frames);
-                       _read_data_count += ar->read_data_count();
+                       ar->read_at (buf, mixdown_buffer, gain_buffer, start, cnt, chan_n);
                }
 
                for (vector<boost::shared_ptr<Crossfade> >::iterator i = x.begin(); i != x.end(); ++i) {
+                        DEBUG_TRACE (DEBUG::AudioPlayback, string_compose ("read from xfade between %1 & %2\n", (*i)->out()->name(), (*i)->in()->name()));
                        (*i)->read_at (buf, mixdown_buffer, gain_buffer, start, cnt, chan_n);
-
-                       /* don't JACK up _read_data_count, since its the same data as we just
-                          read from the regions, and the OS should handle that for us.
-                       */
                }
        }
 
-       delete rlist;
        return ret;
 }
 
@@ -493,7 +490,7 @@ AudioPlaylist::check_dependents (boost::shared_ptr<Region> r, bool norefresh)
        boost::shared_ptr<AudioRegion> top;
        boost::shared_ptr<AudioRegion> bottom;
        boost::shared_ptr<Crossfade>   xfade;
-       RegionList*  touched_regions = 0;
+       boost::shared_ptr<RegionList> touched_regions;
 
        if (in_set_state || in_partition) {
                return;
@@ -544,8 +541,7 @@ AudioPlaylist::check_dependents (boost::shared_ptr<Region> r, bool norefresh)
 
                OverlapType c = top->coverage (bottom->position(), bottom->last_frame());
 
-               delete touched_regions;
-               touched_regions = 0;
+               touched_regions.reset ();
 
                try {
                        framecnt_t xfade_length;
@@ -576,7 +572,8 @@ AudioPlaylist::check_dependents (boost::shared_ptr<Region> r, bool norefresh)
 
                                if (top_region_at (top->first_frame()) == top) {
 
-                                       xfade = boost::shared_ptr<Crossfade> (new Crossfade (top, bottom, xfade_length, top->first_frame(), StartOfIn));
+                                       xfade = boost::shared_ptr<Crossfade> (new Crossfade (top, bottom, xfade_length, StartOfIn));
+                                       xfade->set_position (top->first_frame());
                                        add_crossfade (xfade);
                                }
 
@@ -587,7 +584,8 @@ AudioPlaylist::check_dependents (boost::shared_ptr<Region> r, bool norefresh)
                                           would cover it).
                                        */
 
-                                       xfade = boost::shared_ptr<Crossfade> (new Crossfade (bottom, top, xfade_length, top->last_frame() - xfade_length, EndOfOut));
+                                       xfade = boost::shared_ptr<Crossfade> (new Crossfade (bottom, top, xfade_length, EndOfOut));
+                                       xfade->set_position (top->last_frame() - xfade_length);
                                        add_crossfade (xfade);
                                }
                                break;
@@ -656,8 +654,6 @@ AudioPlaylist::check_dependents (boost::shared_ptr<Region> r, bool norefresh)
                }
 
        }
-
-       delete touched_regions;
 }
 
 void
@@ -715,7 +711,9 @@ AudioPlaylist::set_state (const XMLNode& node, int version)
 
        in_set_state++;
 
-       Playlist::set_state (node, version);
+       if (Playlist::set_state (node, version)) {
+               return -1;
+       }
 
        freeze ();
 
@@ -975,9 +973,9 @@ struct crossfade_triple {
 };
 
 void
-AudioPlaylist::copy_dependents (const vector<TwoRegions>& old_and_new, boost::shared_ptr<Playlist> other)
+AudioPlaylist::copy_dependents (const vector<TwoRegions>& old_and_new, Playlist* other) const
 {
-       boost::shared_ptr<AudioPlaylist> other_audio = boost::dynamic_pointer_cast<AudioPlaylist>(other);
+       AudioPlaylist* other_audio = dynamic_cast<AudioPlaylist*>(other);
 
        if (!other_audio) {
                return;
@@ -999,28 +997,28 @@ AudioPlaylist::copy_dependents (const vector<TwoRegions>& old_and_new, boost::sh
 
        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) {
+               for (Crossfades::const_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, 
+                                       /* 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;
 
@@ -1028,21 +1026,21 @@ AudioPlaylist::copy_dependents (const vector<TwoRegions>& old_and_new, boost::sh
                                }
 
                        } 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
                                        */
@@ -1059,24 +1057,140 @@ AudioPlaylist::copy_dependents (const vector<TwoRegions>& old_and_new, boost::sh
        }
 
        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::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;
+               /* add it at the right position - which must be at the start
+                * of the fade-in region
+                */
+
+               new_xfade->set_position (ci->second.new_in->position());
                other_audio->add_crossfade (new_xfade);
        }
 }
+
+void
+AudioPlaylist::pre_combine (vector<boost::shared_ptr<Region> >& copies)
+{
+       RegionSortByPosition cmp;
+       boost::shared_ptr<AudioRegion> ar;
+
+       sort (copies.begin(), copies.end(), cmp);
+
+       ar = boost::dynamic_pointer_cast<AudioRegion> (copies.front());
+
+       /* disable fade in of the first region */
+
+       if (ar) {
+               ar->set_fade_in_active (false);
+       }
+
+       ar = boost::dynamic_pointer_cast<AudioRegion> (copies.back());
+
+       /* disable fade out of the last region */
+
+       if (ar) {
+               ar->set_fade_out_active (false);
+       }
+}
+
+void
+AudioPlaylist::post_combine (vector<boost::shared_ptr<Region> >& originals, boost::shared_ptr<Region> compound_region)
+{
+       RegionSortByPosition cmp;
+       boost::shared_ptr<AudioRegion> ar;
+       boost::shared_ptr<AudioRegion> cr;
+
+       if ((cr = boost::dynamic_pointer_cast<AudioRegion> (compound_region)) == 0) {
+               return;
+       }
+
+       sort (originals.begin(), originals.end(), cmp);
+
+       ar = boost::dynamic_pointer_cast<AudioRegion> (originals.front());
+
+       /* copy the fade in of the first into the compound region */
+
+       if (ar) {
+               cr->set_fade_in (ar->fade_in());
+       }
+
+       ar = boost::dynamic_pointer_cast<AudioRegion> (originals.back());
+
+       if (ar) {
+               /* copy the fade out of the last into the compound region */
+               cr->set_fade_out (ar->fade_out());
+       }
+}
+
+void
+AudioPlaylist::pre_uncombine (vector<boost::shared_ptr<Region> >& originals, boost::shared_ptr<Region> compound_region)
+{
+       RegionSortByPosition cmp;
+       boost::shared_ptr<AudioRegion> ar;
+       boost::shared_ptr<AudioRegion> cr = boost::dynamic_pointer_cast<AudioRegion>(compound_region);
+
+       if (!cr) {
+               return;
+       }
+
+       sort (originals.begin(), originals.end(), cmp);
+
+       /* no need to call clear_changes() on the originals because that is
+        * done within Playlist::uncombine ()
+        */
+
+       for (vector<boost::shared_ptr<Region> >::iterator i = originals.begin(); i != originals.end(); ++i) {
+
+               if ((ar = boost::dynamic_pointer_cast<AudioRegion> (*i)) == 0) {
+                       continue;
+               }
+
+               /* scale the uncombined regions by any gain setting for the
+                * compound one.
+                */
+
+               ar->set_scale_amplitude (ar->scale_amplitude() * cr->scale_amplitude());
+
+               if (i == originals.begin()) {
+
+                       /* copy the compound region's fade in back into the first
+                          original region.
+                       */
+
+                       if (cr->fade_in()->back()->when <= ar->length()) {
+                               /* don't do this if the fade is longer than the
+                                * region
+                                */
+                               ar->set_fade_in (cr->fade_in());
+                       }
+
+
+               } else if (*i == originals.back()) {
+
+                       /* copy the compound region's fade out back into the last
+                          original region.
+                       */
+
+                       if (cr->fade_out()->back()->when <= ar->length()) {
+                               /* don't do this if the fade is longer than the
+                                * region
+                                */
+                               ar->set_fade_out (cr->fade_out());
+                       }
+
+               }
+
+               _session.add_command (new StatefulDiffCommand (*i));
+       }
+}