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