libs/ardour/import.cc

   1 /*
   2     Copyright (C) 2000 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20
  21 #ifdef WAF_BUILD
  22 #include "libardour-config.h"
  23 #endif
  24
  25 #include <cstdio>
  26 #include <cstdlib>
  27 #include <string>
  28 #include <climits>
  29 #include <cerrno>
  30 #include <unistd.h>
  31 #include <sys/stat.h>
  32 #include <time.h>
  33 #include <stdint.h>
  34
  35 #include <sndfile.h>
  36 #include <samplerate.h>
  37
  38 #include <glibmm.h>
  39
  40 #include <boost/scoped_array.hpp>
  41 #include <boost/shared_array.hpp>
  42
  43 #include "pbd/basename.h"
  44 #include "pbd/convert.h"
  45
  46 #include "evoral/SMF.hpp"
  47
  48 #include "ardour/ardour.h"
  49 #include "ardour/session.h"
  50 #include "ardour/session_directory.h"
  51 #include "ardour/audio_diskstream.h"
  52 #include "ardour/audioengine.h"
  53 #include "ardour/sndfilesource.h"
  54 #include "ardour/sndfile_helpers.h"
  55 #include "ardour/audioregion.h"
  56 #include "ardour/region_factory.h"
  57 #include "ardour/source_factory.h"
  58 #include "ardour/resampled_source.h"
  59 #include "ardour/sndfileimportable.h"
  60 #include "ardour/analyser.h"
  61 #include "ardour/smf_source.h"
  62 #include "ardour/tempo.h"
  63
  64 #ifdef HAVE_COREAUDIO
  65 #ifdef USE_COREAUDIO_FOR_FILE_IO
  66 #include "ardour/caimportable.h"
  67 #endif
  68 #endif
  69
  70 #include "i18n.h"
  71
  72 using namespace std;
  73 using namespace ARDOUR;
  74 using namespace PBD;
  75
  76 static boost::shared_ptr<ImportableSource>
  77 open_importable_source (const string& path, nframes_t samplerate, ARDOUR::SrcQuality quality)
  78 {
  79 #ifdef HAVE_COREAUDIO
  80 #ifdef USE_COREAUDIO_FOR_FILE_IO
  81
  82         /* see if we can use CoreAudio to handle the IO */
  83
  84         try {
  85                 CAImportableSource* src = new CAImportableSource(path);
  86                 boost::shared_ptr<CAImportableSource> source (src);
  87
  88                 if (source->samplerate() == samplerate) {
  89                         return source;
  90                 }
  91
  92                 /* rewrap as a resampled source */
  93
  94                 return boost::shared_ptr<ImportableSource>(new ResampledImportableSource(source, samplerate, quality));
  95         }
  96
  97         catch (...) {
  98
  99                 /* fall back to SndFile */
 100 #endif
 101 #endif
 102
 103                 try {
 104                         boost::shared_ptr<SndFileImportableSource> source(new SndFileImportableSource(path));
 105
 106                         if (source->samplerate() == samplerate) {
 107                                 return source;
 108                         }
 109
 110                         /* rewrap as a resampled source */
 111
 112                         return boost::shared_ptr<ImportableSource>(new ResampledImportableSource(source, samplerate, quality));
 113                 }
 114
 115                 catch (...) {
 116                         throw; // rethrow
 117                 }
 118
 119 #ifdef HAVE_COREAUDIO
 120 #ifdef USE_COREAUDIO_FOR_FILE_IO
 121         }
 122 #endif
 123 #endif
 124 }
 125
 126 static std::string
 127 get_non_existent_filename (DataType type, const bool allow_replacing, const std::string destdir, const std::string& basename, uint channel, uint channels)
 128 {
 129         char buf[PATH_MAX+1];
 130         bool goodfile = false;
 131         string base(basename);
 132         const char* ext = (type == DataType::AUDIO) ? "wav" : "mid";
 133
 134         do {
 135
 136                 if (type == DataType::AUDIO && channels == 2) {
 137                         if (channel == 0) {
 138                                 snprintf (buf, sizeof(buf), "%s-L.wav", base.c_str());
 139                         } else {
 140                                 snprintf (buf, sizeof(buf), "%s-R.wav", base.c_str());
 141                         }
 142                 } else if (channels > 1) {
 143                         snprintf (buf, sizeof(buf), "%s-c%d.%s", base.c_str(), channel, ext);
 144                 } else {
 145                         snprintf (buf, sizeof(buf), "%s.%s", base.c_str(), ext);
 146                 }
 147
 148
 149                 string tempname = destdir + "/" + buf;
 150                 if (!allow_replacing && Glib::file_test (tempname, Glib::FILE_TEST_EXISTS)) {
 151
 152                         /* if the file already exists, we must come up with
 153                          *  a new name for it.  for now we just keep appending
 154                          *  _ to basename
 155                          */
 156
 157                         base += "_";
 158
 159                 } else {
 160
 161                         goodfile = true;
 162                 }
 163
 164         } while ( !goodfile);
 165
 166         return buf;
 167 }
 168
 169 static vector<string>
 170 get_paths_for_new_sources (const bool allow_replacing, const string& import_file_path, const string& session_dir, uint channels)
 171 {
 172         vector<string> new_paths;
 173         const string basename = basename_nosuffix (import_file_path);
 174
 175         SessionDirectory sdir(session_dir);
 176
 177         for (uint n = 0; n < channels; ++n) {
 178
 179                 const DataType type = (import_file_path.rfind(".mid") != string::npos)
 180                                 ? DataType::MIDI : DataType::AUDIO;
 181
 182                 std::string filepath = (type == DataType::MIDI)
 183                                 ? sdir.midi_path().to_string() : sdir.sound_path().to_string();
 184
 185                 filepath += '/';
 186                 filepath += get_non_existent_filename (type, allow_replacing, filepath, basename, n, channels);
 187                 new_paths.push_back (filepath);
 188         }
 189
 190         return new_paths;
 191 }
 192
 193 static bool
 194 map_existing_mono_sources (const vector<string>& new_paths, Session& sess,
 195                            uint samplerate, vector<boost::shared_ptr<Source> >& newfiles, Session *session)
 196 {
 197         for (vector<string>::const_iterator i = new_paths.begin();
 198                         i != new_paths.end(); ++i)
 199         {
 200                 boost::shared_ptr<Source> source = session->source_by_path_and_channel(*i, 0);
 201
 202                 if (source == 0) {
 203                         error << string_compose(_("Could not find a source for %1 even though we are updating this file!"), (*i)) << endl;
 204                         return false;
 205                 }
 206
 207                 newfiles.push_back(boost::dynamic_pointer_cast<Source>(source));
 208         }
 209         return true;
 210 }
 211
 212 static bool
 213 create_mono_sources_for_writing (const vector<string>& new_paths, Session& sess,
 214                 uint samplerate, vector<boost::shared_ptr<Source> >& newfiles)
 215 {
 216         for (vector<string>::const_iterator i = new_paths.begin();
 217                         i != new_paths.end(); ++i)
 218         {
 219                 boost::shared_ptr<Source> source;
 220
 221                 try
 222                 {
 223                         const DataType type = ((*i).rfind(".mid") != string::npos)
 224                                 ? DataType::MIDI : DataType::AUDIO;
 225
 226                         source = SourceFactory::createWritable (type, sess,
 227                                         i->c_str(), true,
 228                                         false, // destructive
 229                                         samplerate);
 230                 }
 231                 catch (const failed_constructor& err)
 232                 {
 233                         error << string_compose (_("Unable to create file %1 during import"), *i) << endmsg;
 234                         return false;
 235                 }
 236
 237                 newfiles.push_back(boost::dynamic_pointer_cast<Source>(source));
 238         }
 239         return true;
 240 }
 241
 242 static Glib::ustring
 243 compose_status_message (const string& path,
 244                         uint file_samplerate,
 245                         uint session_samplerate,
 246                         uint current_file,
 247                         uint total_files)
 248 {
 249         if (file_samplerate != session_samplerate) {
 250                 return string_compose (_("converting %1\n(resample from %2KHz to %3KHz)\n(%4 of %5)"),
 251                                        Glib::path_get_basename (path),
 252                                        file_samplerate/1000.0f,
 253                                        session_samplerate/1000.0f,
 254                                        current_file, total_files);
 255         }
 256
 257         return  string_compose (_("converting %1\n(%2 of %3)"),
 258                                 Glib::path_get_basename (path),
 259                                 current_file, total_files);
 260 }
 261
 262 static void
 263 write_audio_data_to_new_files (ImportableSource* source, Session::ImportStatus& status,
 264                                vector<boost::shared_ptr<Source> >& newfiles)
 265 {
 266         const nframes_t nframes = ResampledImportableSource::blocksize;
 267         boost::shared_ptr<AudioFileSource> afs;
 268         uint channels = source->channels();
 269
 270         boost::scoped_array<float> data(new float[nframes * channels]);
 271         vector<boost::shared_array<Sample> > channel_data;
 272
 273         for (uint n = 0; n < channels; ++n) {
 274                 channel_data.push_back(boost::shared_array<Sample>(new Sample[nframes]));
 275         }
 276
 277         uint read_count = 0;
 278         status.progress = 0.0f;
 279
 280         while (!status.cancel) {
 281
 282                 nframes_t nread, nfread;
 283                 uint x;
 284                 uint chn;
 285
 286                 if ((nread = source->read (data.get(), nframes)) == 0) {
 287                         break;
 288                 }
 289                 nfread = nread / channels;
 290
 291                 /* de-interleave */
 292
 293                 for (chn = 0; chn < channels; ++chn) {
 294
 295                         nframes_t n;
 296                         for (x = chn, n = 0; n < nfread; x += channels, ++n) {
 297                                 channel_data[chn][n] = (Sample) data[x];
 298                         }
 299                 }
 300
 301                 /* flush to disk */
 302
 303                 for (chn = 0; chn < channels; ++chn) {
 304                         if ((afs = boost::dynamic_pointer_cast<AudioFileSource>(newfiles[chn])) != 0) {
 305                                 afs->write (channel_data[chn].get(), nfread);
 306                         }
 307                 }
 308
 309                 read_count += nread;
 310                 status.progress = read_count / (source->ratio () * source->length() * channels);
 311         }
 312 }
 313
 314 static void
 315 write_midi_data_to_new_files (Evoral::SMF* source, Session::ImportStatus& status,
 316                 vector<boost::shared_ptr<Source> >& newfiles)
 317 {
 318         uint32_t buf_size = 4;
 319         uint8_t* buf      = (uint8_t*)malloc(buf_size);
 320
 321         status.progress = 0.0f;
 322
 323         try {
 324
 325         for (unsigned i = 1; i <= source->num_tracks(); ++i) {
 326                 boost::shared_ptr<SMFSource> smfs = boost::dynamic_pointer_cast<SMFSource>(newfiles[i-1]);
 327                 smfs->drop_model();
 328
 329                 source->seek_to_track(i);
 330
 331                 uint64_t t       = 0;
 332                 uint32_t delta_t = 0;
 333                 uint32_t size    = 0;
 334
 335                 while (!status.cancel) {
 336                         size = buf_size;
 337
 338                         int ret = source->read_event(&delta_t, &size, &buf);
 339                         if (size > buf_size)
 340                                 buf_size = size;
 341
 342                         if (ret < 0) { // EOT
 343                                 break;
 344                         }
 345
 346                         t += delta_t;
 347
 348                         if (ret == 0) { // Meta
 349                                 continue;
 350                         }
 351
 352                         smfs->append_event_unlocked_beats(Evoral::Event<double>(0,
 353                                         (double)t / (double)source->ppqn(),
 354                                         size,
 355                                         buf));
 356
 357                         if (status.progress < 0.99)
 358                                 status.progress += 0.01;
 359                 }
 360
 361                 const nframes64_t pos = 0;
 362                 const double length_beats = ceil(t / (double)source->ppqn());
 363                 BeatsFramesConverter converter(smfs->session(), pos);
 364                 smfs->update_length(pos, converter.to(length_beats));
 365                 smfs->end_write();
 366
 367                 if (status.cancel) {
 368                         break;
 369                 }
 370         }
 371
 372         } catch (...) {
 373                 error << "Corrupt MIDI file " << source->file_path() << endl;
 374         }
 375 }
 376
 377 static void
 378 remove_file_source (boost::shared_ptr<Source> source)
 379 {
 380         ::unlink (source->path().c_str());
 381 }
 382
 383 // This function is still unable to cleanly update an existing source, even though
 384 // it is possible to set the ImportStatus flag accordingly. The functinality
 385 // is disabled at the GUI until the Source implementations are able to provide
 386 // the necessary API.
 387 void
 388 Session::import_audiofiles (ImportStatus& status)
 389 {
 390         uint32_t cnt = 1;
 391         typedef vector<boost::shared_ptr<Source> > Sources;
 392         Sources all_new_sources;
 393         boost::shared_ptr<AudioFileSource> afs;
 394         boost::shared_ptr<SMFSource> smfs;
 395         uint channels = 0;
 396
 397         status.sources.clear ();
 398
 399         for (vector<Glib::ustring>::iterator p = status.paths.begin();
 400                         p != status.paths.end() && !status.cancel;
 401                         ++p, ++cnt)
 402         {
 403                 boost::shared_ptr<ImportableSource> source;
 404                 std::auto_ptr<Evoral::SMF>          smf_reader;
 405                 const DataType type = ((*p).rfind(".mid") != string::npos) ?
 406                         DataType::MIDI : DataType::AUDIO;
 407
 408                 if (type == DataType::AUDIO) {
 409                         try {
 410                                 source = open_importable_source (*p, frame_rate(), status.quality);
 411                                 channels = source->channels();
 412                         } catch (const failed_constructor& err) {
 413                                 error << string_compose(_("Import: cannot open input sound file \"%1\""), (*p)) << endmsg;
 414                                 status.done = status.cancel = true;
 415                                 return;
 416                         }
 417
 418                 } else {
 419                         try {
 420                                 smf_reader = std::auto_ptr<Evoral::SMF>(new Evoral::SMF());
 421                                 smf_reader->open(*p);
 422                                 channels = smf_reader->num_tracks();
 423                         } catch (...) {
 424                                 error << _("Import: error opening MIDI file") << endmsg;
 425                                 status.done = status.cancel = true;
 426                                 return;
 427                         }
 428                 }
 429
 430                 vector<string> new_paths = get_paths_for_new_sources (status.replace_existing_source, *p,
 431                                                                       get_best_session_directory_for_new_source (),
 432                                                                       channels);
 433                 Sources newfiles;
 434
 435                 if (status.replace_existing_source) {
 436                         fatal << "THIS IS NOT IMPLEMENTED YET, IT SHOULD NEVER GET CALLED!!! DYING!" << endl;
 437                         status.cancel = !map_existing_mono_sources (new_paths, *this, frame_rate(), newfiles, this);
 438                 } else {
 439                         status.cancel = !create_mono_sources_for_writing (new_paths, *this, frame_rate(), newfiles);
 440                 }
 441
 442                 // copy on cancel/failure so that any files that were created will be removed below
 443                 std::copy (newfiles.begin(), newfiles.end(), std::back_inserter(all_new_sources));
 444
 445                 if (status.cancel) break;
 446
 447                 for (Sources::iterator i = newfiles.begin(); i != newfiles.end(); ++i) {
 448                         if ((afs = boost::dynamic_pointer_cast<AudioFileSource>(*i)) != 0) {
 449                                 afs->prepare_for_peakfile_writes ();
 450                         }
 451                 }
 452
 453                 if (source) { // audio
 454                         status.doing_what = compose_status_message (*p, source->samplerate(),
 455                                                                     frame_rate(), cnt, status.total);
 456                         write_audio_data_to_new_files (source.get(), status, newfiles);
 457                 } else if (smf_reader.get()) { // midi
 458                         status.doing_what = string_compose(_("Loading MIDI file %1"), *p);
 459                         write_midi_data_to_new_files (smf_reader.get(), status, newfiles);
 460                 }
 461         }
 462
 463         if (!status.cancel) {
 464                 struct tm* now;
 465                 time_t xnow;
 466                 time (&xnow);
 467                 now = localtime (&xnow);
 468                 status.freeze = true;
 469
 470                 /* flush the final length(s) to the header(s) */
 471
 472                 for (Sources::iterator x = all_new_sources.begin(); x != all_new_sources.end(); ) {
 473                         if ((afs = boost::dynamic_pointer_cast<AudioFileSource>(*x)) != 0) {
 474                                 afs->update_header(0, *now, xnow);
 475                                 afs->done_with_peakfile_writes ();
 476
 477                                 /* now that there is data there, requeue the file for analysis */
 478
 479                                 if (Config->get_auto_analyse_audio()) {
 480                                         Analyser::queue_source_for_analysis (boost::static_pointer_cast<Source>(*x), false);
 481                                 }
 482                         }
 483
 484                         /* don't create tracks for empty MIDI sources (channels) */
 485
 486                         if ((smfs = boost::dynamic_pointer_cast<SMFSource>(*x)) != 0 && smfs->is_empty()) {
 487                                 x = all_new_sources.erase(x);
 488                         } else {
 489                                 ++x;
 490                         }
 491                 }
 492
 493                 /* save state so that we don't lose these new Sources */
 494
 495                 save_state (_name);
 496
 497                 std::copy (all_new_sources.begin(), all_new_sources.end(), std::back_inserter(status.sources));
 498         } else {
 499                 // this can throw...but it seems very unlikely
 500                 std::for_each (all_new_sources.begin(), all_new_sources.end(), remove_file_source);
 501         }
 502
 503         status.done = true;
 504 }
 505