libs/ardour/audio_region_importer.cc

   1 /*
   2     Copyright (C) 2008 Paul Davis
   3     Author: Sakari Bergen
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18
  19 */
  20
  21 #include "ardour/audio_region_importer.h"
  22
  23 #include <sstream>
  24
  25 #include "pbd/failed_constructor.h"
  26 #include "pbd/compose.h"
  27 #include "pbd/error.h"
  28
  29 #include "ardour/session.h"
  30 #include "ardour/region.h"
  31 #include "ardour/source_factory.h"
  32 #include "ardour/region_factory.h"
  33 #include "ardour/session_directory.h"
  34
  35 #include "i18n.h"
  36
  37 using namespace std;
  38 using namespace PBD;
  39 using namespace ARDOUR;
  40
  41 /**** Handler ***/
  42 AudioRegionImportHandler::AudioRegionImportHandler (XMLTree const & source, Session & session) :
  43   ElementImportHandler (source, session)
  44 {
  45         XMLNode const * root = source.root();
  46         XMLNode const * regions;
  47
  48         if (!(regions = root->child (X_("Regions")))) {
  49                 throw failed_constructor();
  50         }
  51
  52         create_regions_from_children (*regions, elements);
  53 }
  54
  55 void
  56 AudioRegionImportHandler::create_regions_from_children (XMLNode const & node, ElementList & list)
  57 {
  58         XMLNodeList const & children = node.children();
  59         for (XMLNodeList::const_iterator it = children.begin(); it != children.end(); ++it) {
  60                 XMLProperty const * type = (*it)->property("type");
  61                 if (!(*it)->name().compare ("Region") && (!type || type->value() == "audio") ) {
  62                         try {
  63                                 list.push_back (ElementPtr ( new AudioRegionImporter (source, session, *this, **it)));
  64                         } catch (failed_constructor err) {
  65                                 set_dirty();
  66                         }
  67                 }
  68         }
  69 }
  70
  71 string
  72 AudioRegionImportHandler::get_info () const
  73 {
  74         return _("Audio Regions");
  75 }
  76
  77 bool
  78 AudioRegionImportHandler::check_source (string const & filename) const
  79 {
  80         return (sources.find (filename) != sources.end());
  81 }
  82
  83 void
  84 AudioRegionImportHandler::add_source (string const & filename, boost::shared_ptr<Source> const & source)
  85 {
  86         sources.insert (SourcePair (filename, source));
  87 }
  88
  89 boost::shared_ptr<Source> const &
  90 AudioRegionImportHandler::get_source (string const & filename) const
  91 {
  92         return (sources.find (filename))->second;
  93 }
  94
  95 void
  96 AudioRegionImportHandler::register_id (PBD::ID & old_id, PBD::ID & new_id)
  97 {
  98         id_map.insert (IdPair (old_id, new_id));
  99 }
 100
 101 PBD::ID const &
 102 AudioRegionImportHandler::get_new_id (PBD::ID & old_id) const
 103 {
 104         return (id_map.find (old_id))->second;
 105 }
 106
 107 /*** AudioRegionImporter ***/
 108 AudioRegionImporter::AudioRegionImporter (XMLTree const & source, Session & session, AudioRegionImportHandler & handler, XMLNode const & node) :
 109   ElementImporter (source, session),
 110   xml_region (node),
 111   handler (handler),
 112   old_id ("0"),
 113   region_prepared (false),
 114   sources_prepared (false)
 115 {
 116         if (!parse_xml_region () || !parse_source_xml ()) {
 117                 throw failed_constructor();
 118         }
 119         handler.register_id (old_id, id);
 120 }
 121
 122 AudioRegionImporter::~AudioRegionImporter ()
 123 {
 124 }
 125
 126 string
 127 AudioRegionImporter::get_info () const
 128 {
 129         nframes_t length, position;
 130         Timecode::Time length_time, position_time;
 131         std::ostringstream oss;
 132
 133         // Get sample positions
 134         std::istringstream iss_length(xml_region.property ("length")->value());
 135         iss_length >> length;
 136         std::istringstream iss_position(xml_region.property ("position")->value());
 137         iss_position >> position;
 138
 139         // Convert to timecode
 140         session.sample_to_timecode(length, length_time, true, false);
 141         session.sample_to_timecode(position, position_time, true, false);
 142
 143         // return info
 144         oss << _("Length: ") <<
 145           timecode_to_string(length_time) <<
 146           _("\nPosition: ") <<
 147           timecode_to_string(position_time) <<
 148           _("\nChannels: ") <<
 149           xml_region.property ("channels")->value();
 150
 151
 152         return oss.str();
 153 }
 154
 155 bool
 156 AudioRegionImporter::_prepare_move ()
 157 {
 158         return true;
 159 }
 160
 161 void
 162 AudioRegionImporter::_cancel_move ()
 163 {
 164 }
 165
 166 void
 167 AudioRegionImporter::_move ()
 168 {
 169         if (!region_prepared) {
 170                 prepare_region();
 171                 if (!region_prepared) {
 172                         return;
 173                 }
 174         }
 175
 176         if (broken()) {
 177                 return;
 178         }
 179 }
 180
 181 bool
 182 AudioRegionImporter::parse_xml_region ()
 183 {
 184         XMLPropertyList const & props = xml_region.properties();
 185         bool id_ok = false;
 186         bool name_ok = false;
 187
 188         for (XMLPropertyList::const_iterator it = props.begin(); it != props.end(); ++it) {
 189                 string prop = (*it)->name();
 190                 if (!prop.compare ("type") || !prop.compare ("stretch") ||
 191                   !prop.compare ("shift") || !prop.compare ("first_edit") ||
 192                   !prop.compare ("layer") || !prop.compare ("flags") ||
 193                   !prop.compare ("scale-gain") || !prop.compare("channels") ||
 194                   !prop.compare ("first-edit") ||
 195                   prop.find ("master-source-") == 0 || prop.find ("source-") == 0) {
 196                         // All ok
 197                 } else if (!prop.compare ("start") || !prop.compare ("length") ||
 198                   !prop.compare ("position") || !prop.compare ("ancestral-start") ||
 199                   !prop.compare ("ancestral-length") || !prop.compare ("sync-position")) {
 200                         // Sample rate conversion
 201                         (*it)->set_value (rate_convert_samples ((*it)->value()));
 202                 } else if (!prop.compare("id")) {
 203                         // get old id and update id
 204                         old_id = (*it)->value();
 205                         (*it)->set_value (id.to_s());
 206                         id_ok = true;
 207                 } else if (!prop.compare("name")) {
 208                         // rename region if necessary
 209                         name = (*it)->value();
 210                         name = RegionFactory::new_region_name (name);
 211                         (*it)->set_value (name);
 212                         name_ok = true;
 213                 } else {
 214                         std::cerr << string_compose (X_("AudioRegionImporter (%1): did not recognise XML-property \"%2\""), name, prop) << endmsg;
 215                 }
 216         }
 217
 218         if (!id_ok) {
 219                 error << string_compose (X_("AudioRegionImporter (%1): did not find necessary XML-property \"id\""), name) << endmsg;
 220                 return false;
 221         }
 222
 223         if (!name_ok) {
 224                 error << X_("AudioRegionImporter: did not find necessary XML-property \"name\"") << endmsg;
 225                 return false;
 226         }
 227
 228         return true;
 229 }
 230
 231 bool
 232 AudioRegionImporter::parse_source_xml ()
 233 {
 234         uint32_t channels;
 235         char buf[128];
 236         PBD::sys::path source_dir = get_sound_dir (source);
 237         PBD::sys::path source_path;
 238         XMLNode * source_node;
 239         XMLProperty *prop;
 240
 241         // Get XML for sources
 242         if (!(source_node = source.root()->child (X_("Sources")))) {
 243                 return false;
 244         }
 245         XMLNodeList const & sources = source_node->children();
 246
 247         // Get source for each channel
 248         if (!(prop = xml_region.property ("channels"))) {
 249                 error << string_compose (X_("AudioRegionImporter (%1): did not find necessary XML-property \"channels\""), name) << endmsg;
 250                 return false;
 251         }
 252
 253         channels = atoi (prop->value().c_str());
 254         for (uint32_t i = 0; i < channels; ++i) {
 255                 bool source_found = false;
 256
 257                 // Get id for source-n
 258                 snprintf (buf, sizeof(buf), X_("source-%d"), i);
 259                 prop = xml_region.property (buf);
 260                 if (!prop) {
 261                         error << string_compose (X_("AudioRegionImporter (%1): did not find necessary XML-property \"%2\""), name, buf) << endmsg;
 262                         return false;
 263                 }
 264                 string source_id = prop->value();
 265
 266                 // Get source
 267                 for (XMLNodeList::const_iterator it = sources.begin(); it != sources.end(); ++it) {
 268                         prop = (*it)->property ("id");
 269                         if (prop && !source_id.compare (prop->value())) {
 270                                 source_path = source_dir;
 271                                 prop = (*it)->property ("name");
 272                                 if (!prop) {
 273                                         error << string_compose (X_("AudioRegionImporter (%1): source %2 has no \"name\" property"), name, source_id) << endmsg;
 274                                         return false;
 275                                 }
 276                                 source_path /= prop->value();
 277                                 filenames.push_back (source_path.to_string());
 278
 279                                 source_found = true;
 280                                 break;
 281                         }
 282                 }
 283
 284                 if (!source_found) {
 285                         error << string_compose (X_("AudioRegionImporter (%1): could not find all necessary sources"), name) << endmsg;
 286                         return false;
 287                 }
 288         }
 289
 290         return true;
 291 }
 292
 293 PBD::sys::path
 294 AudioRegionImporter::get_sound_dir (XMLTree const & tree)
 295 {
 296         PBD::sys::path source_dir = tree.filename();
 297         source_dir = source_dir.branch_path();
 298         SessionDirectory session_dir(source_dir);
 299         source_dir = session_dir.sound_path();
 300
 301         return source_dir;
 302 }
 303
 304 void
 305 AudioRegionImporter::prepare_region ()
 306 {
 307         if (region_prepared) {
 308                 return;
 309         }
 310
 311         SourceList source_list;
 312         prepare_sources();
 313
 314         // Create source list
 315         for (std::list<string>::iterator it = filenames.begin(); it != filenames.end(); ++it) {
 316                 source_list.push_back (handler.get_source (*it));
 317         }
 318
 319         // create region and update XML
 320         region.push_back (RegionFactory::create (source_list, xml_region));
 321         if (*region.begin()) {
 322                 xml_region = (*region.begin())->get_state();
 323         } else {
 324                 error << string_compose (X_("AudioRegionImporter (%1): could not construct Region"), name) << endmsg;
 325                 handler.set_errors();
 326         }
 327
 328         region_prepared = true;
 329 }
 330
 331 void
 332 AudioRegionImporter::prepare_sources ()
 333 {
 334         if (sources_prepared) {
 335                 return;
 336         }
 337
 338         status.total = 0;
 339         status.replace_existing_source = false;
 340         status.done = false;
 341         status.cancel = false;
 342         status.freeze = false;
 343         status.progress = 0.0;
 344         status.quality = SrcBest; // TODO other qualities also
 345
 346         // Get sources that still need to be imported
 347         for (std::list<string>::iterator it = filenames.begin(); it != filenames.end(); ++it) {
 348                 if (!handler.check_source (*it)) {
 349                         status.paths.push_back (*it);
 350                         status.total++;
 351                 }
 352         }
 353
 354         // import files
 355         // TODO: threading & exception handling
 356         session.import_audiofiles (status);
 357
 358         // Add imported sources to handlers map
 359         std::vector<Glib::ustring>::iterator file_it = status.paths.begin();
 360         for (SourceList::iterator source_it = status.sources.begin(); source_it != status.sources.end(); ++source_it) {
 361                 if (*source_it) {
 362                         handler.add_source(*file_it, *source_it);
 363                 } else {
 364                         error << string_compose (X_("AudioRegionImporter (%1): could not import all necessary sources"), name) << endmsg;
 365                         handler.set_errors();
 366                         set_broken();
 367                 }
 368
 369                 ++file_it;
 370         }
 371
 372         sources_prepared = true;
 373 }
 374
 375 void
 376 AudioRegionImporter::add_sources_to_session ()
 377 {
 378         if (!sources_prepared) {
 379                 prepare_sources();
 380         }
 381
 382         if (broken()) {
 383                 return;
 384         }
 385
 386         for (std::list<string>::iterator it = filenames.begin(); it != filenames.end(); ++it) {
 387                 session.add_source (handler.get_source (*it));
 388         }
 389 }
 390
 391 XMLNode const &
 392 AudioRegionImporter::get_xml ()
 393 {
 394         if(!region_prepared) {
 395                 prepare_region();
 396         }
 397
 398         return xml_region;
 399 }