git-svn-id: svn://localhost/ardour2/branches/3.0@6701 d708f5d6-7413-0410-9779-e7cbd77b26cf
797 lines
20 KiB
C++
797 lines
20 KiB
C++
/*
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Copyright (C) 2003 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <algorithm>
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#include <cstdlib>
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#include "ardour/types.h"
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#include "ardour/configuration.h"
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#include "ardour/audioplaylist.h"
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#include "ardour/audioregion.h"
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#include "ardour/crossfade.h"
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#include "ardour/crossfade_compare.h"
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#include "ardour/session.h"
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#include "pbd/enumwriter.h"
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#include "i18n.h"
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using namespace ARDOUR;
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using namespace std;
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using namespace PBD;
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AudioPlaylist::AudioPlaylist (Session& session, const XMLNode& node, bool hidden)
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: Playlist (session, node, DataType::AUDIO, hidden)
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{
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const XMLProperty* prop = node.property("type");
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assert(!prop || DataType(prop->value()) == DataType::AUDIO);
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in_set_state++;
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set_state (node, Stateful::loading_state_version);
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in_set_state--;
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}
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AudioPlaylist::AudioPlaylist (Session& session, string name, bool hidden)
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: Playlist (session, name, DataType::AUDIO, hidden)
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{
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}
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AudioPlaylist::AudioPlaylist (boost::shared_ptr<const AudioPlaylist> other, string name, bool hidden)
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: Playlist (other, name, hidden)
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{
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RegionList::const_iterator in_o = other->regions.begin();
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RegionList::iterator in_n = regions.begin();
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while (in_o != other->regions.end()) {
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boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(*in_o);
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// We look only for crossfades which begin with the current region, so we don't get doubles
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for (Crossfades::const_iterator xfades = other->_crossfades.begin(); xfades != other->_crossfades.end(); ++xfades) {
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if ((*xfades)->in() == ar) {
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// We found one! Now copy it!
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RegionList::const_iterator out_o = other->regions.begin();
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RegionList::const_iterator out_n = regions.begin();
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while (out_o != other->regions.end()) {
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boost::shared_ptr<AudioRegion>ar2 = boost::dynamic_pointer_cast<AudioRegion>(*out_o);
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if ((*xfades)->out() == ar2) {
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boost::shared_ptr<AudioRegion>in = boost::dynamic_pointer_cast<AudioRegion>(*in_n);
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boost::shared_ptr<AudioRegion>out = boost::dynamic_pointer_cast<AudioRegion>(*out_n);
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boost::shared_ptr<Crossfade> new_fade = boost::shared_ptr<Crossfade> (new Crossfade (*xfades, in, out));
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add_crossfade(new_fade);
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break;
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}
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out_o++;
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out_n++;
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}
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// cerr << "HUH!? second region in the crossfade not found!" << endl;
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}
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}
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in_o++;
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in_n++;
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}
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}
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AudioPlaylist::AudioPlaylist (boost::shared_ptr<const AudioPlaylist> other, nframes_t start, nframes_t cnt, string name, bool hidden)
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: Playlist (other, start, cnt, name, hidden)
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{
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/* this constructor does NOT notify others (session) */
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}
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AudioPlaylist::~AudioPlaylist ()
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{
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_crossfades.clear ();
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}
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struct RegionSortByLayer {
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bool operator() (boost::shared_ptr<Region> a, boost::shared_ptr<Region> b) {
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return a->layer() < b->layer();
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}
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};
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ARDOUR::nframes_t
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AudioPlaylist::read (Sample *buf, Sample *mixdown_buffer, float *gain_buffer, nframes_t start,
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nframes_t cnt, unsigned chan_n)
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{
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nframes_t ret = cnt;
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nframes_t end;
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nframes_t read_frames;
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nframes_t skip_frames;
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/* optimizing this memset() away involves a lot of conditionals
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that may well cause more of a hit due to cache misses
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and related stuff than just doing this here.
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it would be great if someone could measure this
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at some point.
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one way or another, parts of the requested area
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that are not written to by Region::region_at()
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for all Regions that cover the area need to be
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zeroed.
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*/
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memset (buf, 0, sizeof (Sample) * cnt);
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/* this function is never called from a realtime thread, so
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its OK to block (for short intervals).
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*/
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Glib::RecMutex::Lock rm (region_lock);
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end = start + cnt - 1;
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read_frames = 0;
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skip_frames = 0;
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_read_data_count = 0;
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_read_data_count = 0;
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RegionList* rlist = regions_to_read (start, start+cnt);
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if (rlist->empty()) {
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delete rlist;
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return cnt;
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}
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map<uint32_t,vector<boost::shared_ptr<Region> > > relevant_regions;
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map<uint32_t,vector<boost::shared_ptr<Crossfade> > > relevant_xfades;
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vector<uint32_t> relevant_layers;
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for (RegionList::iterator i = rlist->begin(); i != rlist->end(); ++i) {
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if ((*i)->coverage (start, end) != OverlapNone) {
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relevant_regions[(*i)->layer()].push_back (*i);
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relevant_layers.push_back ((*i)->layer());
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}
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}
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for (Crossfades::iterator i = _crossfades.begin(); i != _crossfades.end(); ++i) {
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if ((*i)->coverage (start, end) != OverlapNone) {
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relevant_xfades[(*i)->upper_layer()].push_back (*i);
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}
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}
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// RegionSortByLayer layer_cmp;
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// relevant_regions.sort (layer_cmp);
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/* XXX this whole per-layer approach is a hack that
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should be removed once Crossfades become
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CrossfadeRegions and we just grab a list of relevant
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regions and call read_at() on all of them.
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*/
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sort (relevant_layers.begin(), relevant_layers.end());
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for (vector<uint32_t>::iterator l = relevant_layers.begin(); l != relevant_layers.end(); ++l) {
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vector<boost::shared_ptr<Region> > r (relevant_regions[*l]);
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vector<boost::shared_ptr<Crossfade> >& x (relevant_xfades[*l]);
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for (vector<boost::shared_ptr<Region> >::iterator i = r.begin(); i != r.end(); ++i) {
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boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(*i);
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assert(ar);
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ar->read_at (buf, mixdown_buffer, gain_buffer, start, cnt, chan_n, read_frames, skip_frames);
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_read_data_count += ar->read_data_count();
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}
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for (vector<boost::shared_ptr<Crossfade> >::iterator i = x.begin(); i != x.end(); ++i) {
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(*i)->read_at (buf, mixdown_buffer, gain_buffer, start, cnt, chan_n);
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/* don't JACK up _read_data_count, since its the same data as we just
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read from the regions, and the OS should handle that for us.
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*/
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}
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}
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delete rlist;
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return ret;
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}
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void
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AudioPlaylist::remove_dependents (boost::shared_ptr<Region> region)
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{
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boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion> (region);
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if (in_set_state) {
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return;
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}
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if (r == 0) {
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fatal << _("programming error: non-audio Region passed to remove_overlap in audio playlist")
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<< endmsg;
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return;
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}
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for (Crossfades::iterator i = _crossfades.begin(); i != _crossfades.end(); ) {
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if ((*i)->involves (r)) {
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i = _crossfades.erase (i);
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} else {
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++i;
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}
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}
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}
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void
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AudioPlaylist::flush_notifications ()
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{
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Playlist::flush_notifications();
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if (in_flush) {
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return;
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}
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in_flush = true;
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Crossfades::iterator a;
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for (a = _pending_xfade_adds.begin(); a != _pending_xfade_adds.end(); ++a) {
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NewCrossfade (*a); /* EMIT SIGNAL */
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}
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_pending_xfade_adds.clear ();
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in_flush = false;
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}
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void
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AudioPlaylist::refresh_dependents (boost::shared_ptr<Region> r)
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{
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boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
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set<boost::shared_ptr<Crossfade> > updated;
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if (ar == 0) {
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return;
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}
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for (Crossfades::iterator x = _crossfades.begin(); x != _crossfades.end();) {
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Crossfades::iterator tmp;
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tmp = x;
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++tmp;
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/* only update them once */
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if ((*x)->involves (ar)) {
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pair<set<boost::shared_ptr<Crossfade> >::iterator, bool> const u = updated.insert (*x);
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if (u.second) {
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/* x was successfully inserted into the set, so it has not already been updated */
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try {
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(*x)->refresh ();
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}
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catch (Crossfade::NoCrossfadeHere& err) {
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// relax, Invalidated during refresh
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}
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}
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}
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x = tmp;
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}
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}
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void
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AudioPlaylist::finalize_split_region (boost::shared_ptr<Region> o, boost::shared_ptr<Region> l, boost::shared_ptr<Region> r)
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{
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boost::shared_ptr<AudioRegion> orig = boost::dynamic_pointer_cast<AudioRegion>(o);
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boost::shared_ptr<AudioRegion> left = boost::dynamic_pointer_cast<AudioRegion>(l);
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boost::shared_ptr<AudioRegion> right = boost::dynamic_pointer_cast<AudioRegion>(r);
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for (Crossfades::iterator x = _crossfades.begin(); x != _crossfades.end();) {
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Crossfades::iterator tmp;
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tmp = x;
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++tmp;
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boost::shared_ptr<Crossfade> fade;
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if ((*x)->_in == orig) {
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if (! (*x)->covers(right->position())) {
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fade = boost::shared_ptr<Crossfade> (new Crossfade (*x, left, (*x)->_out));
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} else {
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// Overlap, the crossfade is copied on the left side of the right region instead
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fade = boost::shared_ptr<Crossfade> (new Crossfade (*x, right, (*x)->_out));
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}
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}
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if ((*x)->_out == orig) {
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if (! (*x)->covers(right->position())) {
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fade = boost::shared_ptr<Crossfade> (new Crossfade (*x, (*x)->_in, right));
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} else {
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// Overlap, the crossfade is copied on the right side of the left region instead
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fade = boost::shared_ptr<Crossfade> (new Crossfade (*x, (*x)->_in, left));
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}
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}
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if (fade) {
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_crossfades.remove (*x);
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add_crossfade (fade);
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}
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x = tmp;
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}
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}
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void
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AudioPlaylist::check_dependents (boost::shared_ptr<Region> r, bool norefresh)
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{
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boost::shared_ptr<AudioRegion> other;
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boost::shared_ptr<AudioRegion> region;
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boost::shared_ptr<AudioRegion> top;
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boost::shared_ptr<AudioRegion> bottom;
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boost::shared_ptr<Crossfade> xfade;
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RegionList* touched_regions = 0;
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if (in_set_state || in_partition) {
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return;
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}
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if ((region = boost::dynamic_pointer_cast<AudioRegion> (r)) == 0) {
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fatal << _("programming error: non-audio Region tested for overlap in audio playlist")
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<< endmsg;
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return;
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}
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if (!norefresh) {
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refresh_dependents (r);
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}
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if (!_session.config.get_auto_xfade()) {
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return;
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}
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for (RegionList::iterator i = regions.begin(); i != regions.end(); ++i) {
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nframes_t xfade_length;
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other = boost::dynamic_pointer_cast<AudioRegion> (*i);
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if (other == region) {
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continue;
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}
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if (other->muted() || region->muted()) {
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continue;
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}
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if (other->layer() < region->layer()) {
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top = region;
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bottom = other;
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} else {
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top = other;
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bottom = region;
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}
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if (!top->opaque()) {
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continue;
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}
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OverlapType c = top->coverage (bottom->position(), bottom->last_frame());
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delete touched_regions;
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touched_regions = 0;
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try {
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switch (c) {
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case OverlapNone:
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break;
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case OverlapInternal:
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/* {=============== top =============}
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* [ ----- bottom ------- ]
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*/
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break;
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case OverlapExternal:
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/* [ -------- top ------- ]
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* {=========== bottom =============}
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*/
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/* to avoid discontinuities at the region boundaries of an internal
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overlap (this region is completely within another), we create
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two hidden crossfades at each boundary. this is not dependent
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on the auto-xfade option, because we require it as basic
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audio engineering.
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*/
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xfade_length = min ((framecnt_t) 720, top->length());
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if (top_region_at (top->first_frame()) == top) {
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xfade = boost::shared_ptr<Crossfade> (new Crossfade (top, bottom, xfade_length, top->first_frame(), StartOfIn));
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add_crossfade (xfade);
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}
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if (top_region_at (top->last_frame() - 1) == top) {
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/*
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only add a fade out if there is no region on top of the end of 'top' (which
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would cover it).
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*/
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xfade = boost::shared_ptr<Crossfade> (new Crossfade (bottom, top, xfade_length, top->last_frame() - xfade_length, EndOfOut));
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add_crossfade (xfade);
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}
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break;
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case OverlapStart:
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/* { ==== top ============ }
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* [---- bottom -------------------]
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*/
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if (_session.config.get_xfade_model() == FullCrossfade) {
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touched_regions = regions_touched (top->first_frame(), bottom->last_frame());
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if (touched_regions->size() <= 2) {
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xfade = boost::shared_ptr<Crossfade> (new Crossfade (region, other, _session.config.get_xfade_model(), _session.config.get_xfades_active()));
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add_crossfade (xfade);
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}
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} else {
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touched_regions = regions_touched (top->first_frame(),
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top->first_frame() + min ((framecnt_t) _session.config.get_short_xfade_seconds() * _session.frame_rate(),
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top->length()));
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if (touched_regions->size() <= 2) {
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xfade = boost::shared_ptr<Crossfade> (new Crossfade (region, other, _session.config.get_xfade_model(), _session.config.get_xfades_active()));
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add_crossfade (xfade);
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}
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}
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break;
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case OverlapEnd:
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/* [---- top ------------------------]
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* { ==== bottom ============ }
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*/
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if (_session.config.get_xfade_model() == FullCrossfade) {
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touched_regions = regions_touched (bottom->first_frame(), top->last_frame());
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if (touched_regions->size() <= 2) {
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xfade = boost::shared_ptr<Crossfade> (new Crossfade (region, other,
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_session.config.get_xfade_model(), _session.config.get_xfades_active()));
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add_crossfade (xfade);
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}
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} else {
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touched_regions = regions_touched (bottom->first_frame(),
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bottom->first_frame() + min ((framecnt_t)_session.config.get_short_xfade_seconds() * _session.frame_rate(),
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bottom->length()));
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if (touched_regions->size() <= 2) {
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xfade = boost::shared_ptr<Crossfade> (new Crossfade (region, other, _session.config.get_xfade_model(), _session.config.get_xfades_active()));
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add_crossfade (xfade);
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}
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}
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break;
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default:
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xfade = boost::shared_ptr<Crossfade> (new Crossfade (region, other,
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_session.config.get_xfade_model(), _session.config.get_xfades_active()));
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add_crossfade (xfade);
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}
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}
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catch (failed_constructor& err) {
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continue;
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}
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catch (Crossfade::NoCrossfadeHere& err) {
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continue;
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}
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}
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delete touched_regions;
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}
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void
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AudioPlaylist::add_crossfade (boost::shared_ptr<Crossfade> xfade)
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{
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Crossfades::iterator ci;
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for (ci = _crossfades.begin(); ci != _crossfades.end(); ++ci) {
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if (*(*ci) == *xfade) { // Crossfade::operator==()
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break;
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}
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}
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if (ci != _crossfades.end()) {
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// it will just go away
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} else {
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_crossfades.push_back (xfade);
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xfade->Invalidated.connect_same_thread (*this, boost::bind (&AudioPlaylist::crossfade_invalidated, this, _1));
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xfade->PropertyChanged.connect_same_thread (*this, boost::bind (&AudioPlaylist::crossfade_changed, this, _1));
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notify_crossfade_added (xfade);
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}
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}
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void AudioPlaylist::notify_crossfade_added (boost::shared_ptr<Crossfade> x)
|
|
{
|
|
if (g_atomic_int_get(&block_notifications)) {
|
|
_pending_xfade_adds.insert (_pending_xfade_adds.end(), x);
|
|
} else {
|
|
NewCrossfade (x); /* EMIT SIGNAL */
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioPlaylist::crossfade_invalidated (boost::shared_ptr<Region> r)
|
|
{
|
|
Crossfades::iterator i;
|
|
boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
|
|
|
|
xfade->in()->resume_fade_in ();
|
|
xfade->out()->resume_fade_out ();
|
|
|
|
if ((i = find (_crossfades.begin(), _crossfades.end(), xfade)) != _crossfades.end()) {
|
|
_crossfades.erase (i);
|
|
}
|
|
}
|
|
|
|
int
|
|
AudioPlaylist::set_state (const XMLNode& node, int version)
|
|
{
|
|
XMLNode *child;
|
|
XMLNodeList nlist;
|
|
XMLNodeConstIterator niter;
|
|
|
|
in_set_state++;
|
|
|
|
Playlist::set_state (node, version);
|
|
|
|
freeze ();
|
|
|
|
nlist = node.children();
|
|
|
|
for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
|
|
|
|
child = *niter;
|
|
|
|
if (child->name() != "Crossfade") {
|
|
continue;
|
|
}
|
|
|
|
try {
|
|
boost::shared_ptr<Crossfade> xfade = boost::shared_ptr<Crossfade> (new Crossfade (*((const Playlist *)this), *child));
|
|
_crossfades.push_back (xfade);
|
|
xfade->Invalidated.connect_same_thread (*this, boost::bind (&AudioPlaylist::crossfade_invalidated, this, _1));
|
|
xfade->PropertyChanged.connect_same_thread (*this, boost::bind (&AudioPlaylist::crossfade_changed, this, _1));
|
|
NewCrossfade(xfade);
|
|
}
|
|
|
|
catch (failed_constructor& err) {
|
|
// cout << string_compose (_("could not create crossfade object in playlist %1"),
|
|
// _name)
|
|
// << endl;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
thaw ();
|
|
in_set_state--;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
AudioPlaylist::clear (bool with_signals)
|
|
{
|
|
_crossfades.clear ();
|
|
Playlist::clear (with_signals);
|
|
}
|
|
|
|
XMLNode&
|
|
AudioPlaylist::state (bool full_state)
|
|
{
|
|
XMLNode& node = Playlist::state (full_state);
|
|
|
|
if (full_state) {
|
|
for (Crossfades::iterator i = _crossfades.begin(); i != _crossfades.end(); ++i) {
|
|
node.add_child_nocopy ((*i)->get_state());
|
|
}
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
void
|
|
AudioPlaylist::dump () const
|
|
{
|
|
boost::shared_ptr<Region>r;
|
|
boost::shared_ptr<Crossfade> x;
|
|
|
|
cerr << "Playlist \"" << _name << "\" " << endl
|
|
<< regions.size() << " regions "
|
|
<< _crossfades.size() << " crossfades"
|
|
<< endl;
|
|
|
|
for (RegionList::const_iterator i = regions.begin(); i != regions.end(); ++i) {
|
|
r = *i;
|
|
cerr << " " << r->name() << " @ " << r << " ["
|
|
<< r->start() << "+" << r->length()
|
|
<< "] at "
|
|
<< r->position()
|
|
<< " on layer "
|
|
<< r->layer ()
|
|
<< endl;
|
|
}
|
|
|
|
for (Crossfades::const_iterator i = _crossfades.begin(); i != _crossfades.end(); ++i) {
|
|
x = *i;
|
|
cerr << " xfade ["
|
|
<< x->out()->name()
|
|
<< ','
|
|
<< x->in()->name()
|
|
<< " @ "
|
|
<< x->position()
|
|
<< " length = "
|
|
<< x->length ()
|
|
<< " active ? "
|
|
<< (x->active() ? "yes" : "no")
|
|
<< endl;
|
|
}
|
|
}
|
|
|
|
bool
|
|
AudioPlaylist::destroy_region (boost::shared_ptr<Region> region)
|
|
{
|
|
boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion> (region);
|
|
bool changed = false;
|
|
Crossfades::iterator c, ctmp;
|
|
set<boost::shared_ptr<Crossfade> > unique_xfades;
|
|
|
|
if (r == 0) {
|
|
fatal << _("programming error: non-audio Region passed to remove_overlap in audio playlist")
|
|
<< endmsg;
|
|
/*NOTREACHED*/
|
|
return false;
|
|
}
|
|
|
|
{
|
|
RegionLock rlock (this);
|
|
|
|
for (RegionList::iterator i = regions.begin(); i != regions.end(); ) {
|
|
|
|
RegionList::iterator tmp = i;
|
|
++tmp;
|
|
|
|
if ((*i) == region) {
|
|
regions.erase (i);
|
|
changed = true;
|
|
}
|
|
|
|
i = tmp;
|
|
}
|
|
|
|
for (set<boost::shared_ptr<Region> >::iterator x = all_regions.begin(); x != all_regions.end(); ) {
|
|
|
|
set<boost::shared_ptr<Region> >::iterator xtmp = x;
|
|
++xtmp;
|
|
|
|
if ((*x) == region) {
|
|
all_regions.erase (x);
|
|
changed = true;
|
|
}
|
|
|
|
x = xtmp;
|
|
}
|
|
|
|
region->set_playlist (boost::shared_ptr<Playlist>());
|
|
}
|
|
|
|
for (c = _crossfades.begin(); c != _crossfades.end(); ) {
|
|
ctmp = c;
|
|
++ctmp;
|
|
|
|
if ((*c)->involves (r)) {
|
|
unique_xfades.insert (*c);
|
|
_crossfades.erase (c);
|
|
}
|
|
|
|
c = ctmp;
|
|
}
|
|
|
|
if (changed) {
|
|
/* overload this, it normally means "removed", not destroyed */
|
|
notify_region_removed (region);
|
|
}
|
|
|
|
return changed;
|
|
}
|
|
|
|
void
|
|
AudioPlaylist::crossfade_changed (const PropertyChange&)
|
|
{
|
|
if (in_flush || in_set_state) {
|
|
return;
|
|
}
|
|
|
|
/* XXX is there a loop here? can an xfade change not happen
|
|
due to a playlist change? well, sure activation would
|
|
be an example. maybe we should check the type of change
|
|
that occured.
|
|
*/
|
|
|
|
notify_contents_changed ();
|
|
}
|
|
|
|
bool
|
|
AudioPlaylist::region_changed (const PropertyChange& what_changed, boost::shared_ptr<Region> region)
|
|
{
|
|
if (in_flush || in_set_state) {
|
|
return false;
|
|
}
|
|
|
|
PropertyChange our_interests;
|
|
|
|
our_interests.add (Properties::fade_in_active);
|
|
our_interests.add (Properties::fade_out_active);
|
|
our_interests.add (Properties::scale_amplitude);
|
|
our_interests.add (Properties::envelope_active);
|
|
our_interests.add (Properties::envelope);
|
|
our_interests.add (Properties::fade_in);
|
|
our_interests.add (Properties::fade_out);
|
|
|
|
bool parent_wants_notify;
|
|
|
|
parent_wants_notify = Playlist::region_changed (what_changed, region);
|
|
|
|
if (parent_wants_notify || (what_changed.contains (our_interests))) {
|
|
notify_contents_changed ();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void
|
|
AudioPlaylist::crossfades_at (nframes_t frame, Crossfades& clist)
|
|
{
|
|
RegionLock rlock (this);
|
|
|
|
for (Crossfades::iterator i = _crossfades.begin(); i != _crossfades.end(); ++i) {
|
|
nframes_t start, end;
|
|
|
|
start = (*i)->position();
|
|
end = start + (*i)->overlap_length(); // not length(), important difference
|
|
|
|
if (frame >= start && frame <= end) {
|
|
clist.push_back (*i);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
AudioPlaylist::foreach_crossfade (boost::function<void (boost::shared_ptr<Crossfade>)> s)
|
|
{
|
|
RegionLock rl (this, false);
|
|
for (Crossfades::iterator i = _crossfades.begin(); i != _crossfades.end(); ++i) {
|
|
s (*i);
|
|
}
|
|
}
|