316 lines
6.5 KiB
C++
316 lines
6.5 KiB
C++
/*
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Copyright (C) 2000 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 <sys/stat.h>
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#include <unistd.h>
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#include <float.h>
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#include <cerrno>
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#include <ctime>
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#include <cmath>
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#include <iomanip>
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#include <algorithm>
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#include "pbd/gstdio_compat.h"
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#include <glibmm/threads.h>
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#include <glibmm/miscutils.h>
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#include <glibmm/fileutils.h>
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#include "pbd/xml++.h"
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#include "pbd/pthread_utils.h"
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#include "pbd/enumwriter.h"
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#include "ardour/debug.h"
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#include "ardour/profile.h"
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#include "ardour/session.h"
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#include "ardour/source.h"
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#include "ardour/transient_detector.h"
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#include "pbd/i18n.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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Source::Source (Session& s, DataType type, const string& name, Flag flags)
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: SessionObject(s, name)
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, _type(type)
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, _flags(flags)
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, _timeline_position(0)
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, _use_count (0)
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, _level (0)
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{
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_analysed = false;
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_timestamp = 0;
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fix_writable_flags ();
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}
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Source::Source (Session& s, const XMLNode& node)
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: SessionObject(s, "unnamed source")
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, _type(DataType::AUDIO)
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, _flags (Flag (Writable|CanRename))
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, _timeline_position(0)
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, _use_count (0)
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, _level (0)
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{
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_timestamp = 0;
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_analysed = false;
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if (set_state (node, Stateful::loading_state_version) || _type == DataType::NIL) {
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throw failed_constructor();
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}
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fix_writable_flags ();
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}
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Source::~Source ()
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{
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DEBUG_TRACE (DEBUG::Destruction, string_compose ("Source %1 destructor %2\n", _name, this));
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}
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void
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Source::fix_writable_flags ()
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{
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if (!_session.writable()) {
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_flags = Flag (_flags & ~(Writable|Removable|RemovableIfEmpty|RemoveAtDestroy|CanRename));
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}
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}
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XMLNode&
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Source::get_state ()
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{
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XMLNode *node = new XMLNode ("Source");
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char buf[64];
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node->add_property ("name", name());
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node->add_property ("type", _type.to_string());
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node->add_property (X_("flags"), enum_2_string (_flags));
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id().print (buf, sizeof (buf));
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node->add_property ("id", buf);
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if (_timestamp != 0) {
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snprintf (buf, sizeof (buf), "%ld", _timestamp);
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node->add_property ("timestamp", buf);
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}
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return *node;
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}
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int
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Source::set_state (const XMLNode& node, int version)
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{
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XMLProperty const * prop;
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if ((prop = node.property ("name")) != 0) {
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_name = prop->value();
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} else {
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return -1;
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}
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if (!set_id (node)) {
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return -1;
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}
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if ((prop = node.property ("type")) != 0) {
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_type = DataType(prop->value());
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}
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if ((prop = node.property ("timestamp")) != 0) {
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sscanf (prop->value().c_str(), "%ld", &_timestamp);
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}
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if ((prop = node.property (X_("flags"))) != 0) {
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_flags = Flag (string_2_enum (prop->value(), _flags));
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} else {
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_flags = Flag (0);
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}
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/* old style, from the period when we had DestructiveFileSource */
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if ((prop = node.property (X_("destructive"))) != 0) {
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_flags = Flag (_flags | Destructive);
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}
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if (Profile->get_trx() && (_flags & Destructive)) {
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error << string_compose (_("%1: this session uses destructive tracks, which are not supported"), PROGRAM_NAME) << endmsg;
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return -1;
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}
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if (version < 3000) {
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/* a source with an XML node must necessarily already exist,
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and therefore cannot be removable/writable etc. etc.; 2.X
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sometimes marks sources as removable which shouldn't be.
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*/
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if (!(_flags & Destructive)) {
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_flags = Flag (_flags & ~(Writable|Removable|RemovableIfEmpty|RemoveAtDestroy|CanRename));
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}
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}
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return 0;
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}
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bool
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Source::has_been_analysed() const
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{
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Glib::Threads::Mutex::Lock lm (_analysis_lock);
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return _analysed;
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}
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void
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Source::set_been_analysed (bool yn)
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{
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if (yn) {
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if (0 == load_transients (get_transients_path())) {
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yn = false;
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}
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}
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if (yn != _analysed) {
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Glib::Threads::Mutex::Lock lm (_analysis_lock);
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_analysed = yn;
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}
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AnalysisChanged(); // EMIT SIGNAL
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}
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int
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Source::load_transients (const string& path)
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{
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int rv = 0;
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FILE *tf;
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if (! (tf = g_fopen (path.c_str (), "rb"))) {
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return -1;
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}
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transients.clear ();
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while (!feof (tf) && !ferror(tf)) {
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double val;
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if (1 != fscanf (tf, "%lf", &val)) {
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rv = -1;
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break;
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}
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framepos_t frame = (framepos_t) floor (val * _session.frame_rate());
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transients.push_back (frame);
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}
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::fclose (tf);
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return rv;
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}
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string
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Source::get_transients_path () const
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{
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vector<string> parts;
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string s;
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/* old sessions may not have the analysis directory */
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_session.ensure_subdirs ();
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s = _session.analysis_dir ();
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parts.push_back (s);
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s = id().to_s();
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s += '.';
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s += TransientDetector::operational_identifier();
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parts.push_back (s);
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return Glib::build_filename (parts);
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}
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bool
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Source::check_for_analysis_data_on_disk ()
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{
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/* looks to see if the analysis files for this source are on disk.
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if so, mark us already analysed.
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*/
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string path = get_transients_path ();
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bool ok = true;
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if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
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ok = false;
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}
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// XXX add other tests here as appropriate
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set_been_analysed (ok);
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return ok;
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}
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void
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Source::mark_for_remove ()
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{
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// This operation is not allowed for sources for destructive tracks or out-of-session files.
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/* XXX need a way to detect _within_session() condition here - move it from FileSource?
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*/
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if ((_flags & Destructive)) {
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return;
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}
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_flags = Flag (_flags | Removable | RemoveAtDestroy);
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}
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void
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Source::set_timeline_position (framepos_t pos)
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{
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_timeline_position = pos;
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}
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void
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Source::set_allow_remove_if_empty (bool yn)
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{
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if (!writable()) {
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return;
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}
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if (yn) {
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_flags = Flag (_flags | RemovableIfEmpty);
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} else {
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_flags = Flag (_flags & ~RemovableIfEmpty);
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}
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}
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void
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Source::inc_use_count ()
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{
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g_atomic_int_inc (&_use_count);
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}
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void
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Source::dec_use_count ()
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{
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#ifndef NDEBUG
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gint oldval = g_atomic_int_add (&_use_count, -1);
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if (oldval <= 0) {
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cerr << "Bad use dec for " << name() << endl;
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abort ();
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}
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assert (oldval > 0);
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#else
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g_atomic_int_add (&_use_count, -1);
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#endif
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}
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bool
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Source::writable () const
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{
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return (_flags & Writable) && _session.writable();
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}
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