libs/ardour/source_factory.cc

   1 /*
   2     Copyright (C) 2000-2006 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     $Id$
  19 */
  20
  21 #ifdef WAF_BUILD
  22 #include "libardour-config.h"
  23 #endif
  24
  25 #include "pbd/boost_debug.h"
  26 #include "pbd/error.h"
  27 #include "pbd/convert.h"
  28 #include "pbd/pthread_utils.h"
  29 #include "pbd/stacktrace.h"
  30
  31 #include "ardour/audioplaylist.h"
  32 #include "ardour/audio_playlist_source.h"
  33 #include "ardour/midi_playlist.h"
  34 #include "ardour/midi_playlist_source.h"
  35 #include "ardour/source_factory.h"
  36 #include "ardour/sndfilesource.h"
  37 #include "ardour/silentfilesource.h"
  38 #include "ardour/rc_configuration.h"
  39 #include "ardour/smf_source.h"
  40 #include "ardour/session.h"
  41
  42 #ifdef  HAVE_COREAUDIO
  43 #define USE_COREAUDIO_FOR_FILES
  44 #endif
  45
  46 #ifdef USE_COREAUDIO_FOR_FILES
  47 #include "ardour/coreaudiosource.h"
  48 #endif
  49
  50
  51 #include "i18n.h"
  52
  53 using namespace ARDOUR;
  54 using namespace std;
  55 using namespace PBD;
  56
  57 PBD::Signal1<void,boost::shared_ptr<Source> > SourceFactory::SourceCreated;
  58 Glib::Cond* SourceFactory::PeaksToBuild;
  59 Glib::StaticMutex SourceFactory::peak_building_lock = GLIBMM_STATIC_MUTEX_INIT;
  60 std::list<boost::weak_ptr<AudioSource> > SourceFactory::files_with_peaks;
  61
  62 static void
  63 peak_thread_work ()
  64 {
  65         SessionEvent::create_per_thread_pool (X_("PeakFile Builder "), 64);
  66
  67         while (true) {
  68
  69                 SourceFactory::peak_building_lock.lock ();
  70
  71           wait:
  72                 if (SourceFactory::files_with_peaks.empty()) {
  73                         SourceFactory::PeaksToBuild->wait (SourceFactory::peak_building_lock);
  74                 }
  75
  76                 if (SourceFactory::files_with_peaks.empty()) {
  77                         goto wait;
  78                 }
  79
  80                 boost::shared_ptr<AudioSource> as (SourceFactory::files_with_peaks.front().lock());
  81                 SourceFactory::files_with_peaks.pop_front ();
  82                 SourceFactory::peak_building_lock.unlock ();
  83
  84                 if (!as) {
  85                         continue;
  86                 }
  87
  88                 as->setup_peakfile ();
  89         }
  90 }
  91
  92 void
  93 SourceFactory::init ()
  94 {
  95         PeaksToBuild = new Glib::Cond();
  96
  97         for (int n = 0; n < 2; ++n) {
  98                 Glib::Thread::create (sigc::ptr_fun (::peak_thread_work), false);
  99         }
 100 }
 101
 102 int
 103 SourceFactory::setup_peakfile (boost::shared_ptr<Source> s, bool async)
 104 {
 105         boost::shared_ptr<AudioSource> as (boost::dynamic_pointer_cast<AudioSource> (s));
 106
 107         if (as) {
 108
 109                 if (async) {
 110
 111                         Glib::Mutex::Lock lm (peak_building_lock);
 112                         files_with_peaks.push_back (boost::weak_ptr<AudioSource> (as));
 113                         PeaksToBuild->broadcast ();
 114
 115                 } else {
 116
 117                         if (as->setup_peakfile ()) {
 118                                 error << string_compose("SourceFactory: could not set up peakfile for %1", as->name()) << endmsg;
 119                                 return -1;
 120                         }
 121                 }
 122         }
 123
 124         return 0;
 125 }
 126
 127 boost::shared_ptr<Source>
 128 SourceFactory::createSilent (Session& s, const XMLNode& node, framecnt_t nframes, float sr)
 129 {
 130         Source* src = new SilentFileSource (s, node, nframes, sr);
 131 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 132         // boost_debug_shared_ptr_mark_interesting (src, "Source");
 133 #endif
 134         boost::shared_ptr<Source> ret (src);
 135         // no analysis data - the file is non-existent
 136         SourceCreated (ret);
 137         return ret;
 138 }
 139
 140 boost::shared_ptr<Source>
 141 SourceFactory::create (Session& s, const XMLNode& node, bool defer_peaks)
 142 {
 143         DataType type = DataType::AUDIO;
 144         const XMLProperty* prop = node.property("type");
 145
 146         if (prop) {
 147                 type = DataType (prop->value());
 148         }
 149
 150         if (type == DataType::AUDIO) {
 151
 152                 /* it could be nested */
 153
 154                 if (node.property ("playlist") != 0) {
 155
 156                         try {
 157                                 boost::shared_ptr<AudioPlaylistSource> ap (new AudioPlaylistSource (s, node));
 158
 159                                 if (setup_peakfile (ap, true)) {
 160                                         return boost::shared_ptr<Source>();
 161                                 }
 162
 163                                 ap->check_for_analysis_data_on_disk ();
 164
 165                                 SourceCreated (ap);
 166                                 return ap;
 167
 168                         } catch (failed_constructor&) {
 169                                 /* oh well, so much for that then ... */
 170                         }
 171
 172                 } else {
 173
 174
 175                         try {
 176                                 Source* src = new SndFileSource (s, node);
 177 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 178                                 // boost_debug_shared_ptr_mark_interesting (src, "Source");
 179 #endif
 180                                 boost::shared_ptr<Source> ret (src);
 181                                 if (setup_peakfile (ret, defer_peaks)) {
 182                                         return boost::shared_ptr<Source>();
 183                                 }
 184                                 ret->check_for_analysis_data_on_disk ();
 185                                 SourceCreated (ret);
 186                                 return ret;
 187                         }
 188
 189                         catch (failed_constructor& err) {
 190
 191 #ifdef USE_COREAUDIO_FOR_FILES
 192
 193                                 /* this is allowed to throw */
 194
 195                                 Source *src = new CoreAudioSource (s, node);
 196 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 197                                 // boost_debug_shared_ptr_mark_interesting (src, "Source");
 198 #endif
 199                                 boost::shared_ptr<Source> ret (src);
 200
 201                                 if (setup_peakfile (ret, defer_peaks)) {
 202                                         return boost::shared_ptr<Source>();
 203                                 }
 204
 205                                 ret->check_for_analysis_data_on_disk ();
 206                                 SourceCreated (ret);
 207                                 return ret;
 208 #else
 209                                 throw; // rethrow
 210 #endif
 211                         }
 212                 }
 213         } else if (type == DataType::MIDI) {
 214                 boost::shared_ptr<SMFSource> src (new SMFSource (s, node));
 215                 src->load_model (true, true);
 216 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 217                 // boost_debug_shared_ptr_mark_interesting (src, "Source");
 218 #endif
 219                 src->check_for_analysis_data_on_disk ();
 220                 SourceCreated (src);
 221                 return src;
 222         }
 223
 224         return boost::shared_ptr<Source>();
 225 }
 226
 227 boost::shared_ptr<Source>
 228 SourceFactory::createReadable (DataType type, Session& s, const string& path,
 229                                int chn, Source::Flag flags, bool announce, bool defer_peaks)
 230 {
 231         if (type == DataType::AUDIO) {
 232
 233                 if (!(flags & Destructive)) {
 234
 235                         try {
 236
 237                                 Source* src = new SndFileSource (s, path, chn, flags);
 238 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 239                                 // boost_debug_shared_ptr_mark_interesting (src, "Source");
 240 #endif
 241                                 boost::shared_ptr<Source> ret (src);
 242
 243                                 if (setup_peakfile (ret, defer_peaks)) {
 244                                         return boost::shared_ptr<Source>();
 245                                 }
 246
 247                                 ret->check_for_analysis_data_on_disk ();
 248                                 if (announce) {
 249                                         SourceCreated (ret);
 250                                 }
 251                                 return ret;
 252                         }
 253
 254                         catch (failed_constructor& err) {
 255 #ifdef USE_COREAUDIO_FOR_FILES
 256
 257                                 Source* src = new CoreAudioSource (s, path, chn, flags);
 258 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 259                                 // boost_debug_shared_ptr_mark_interesting (src, "Source");
 260 #endif
 261                                 boost::shared_ptr<Source> ret (src);
 262                                 if (setup_peakfile (ret, defer_peaks)) {
 263                                         return boost::shared_ptr<Source>();
 264                                 }
 265                                 ret->check_for_analysis_data_on_disk ();
 266                                 if (announce) {
 267                                         SourceCreated (ret);
 268                                 }
 269                                 return ret;
 270
 271 #else
 272                                 throw; // rethrow
 273 #endif
 274                         }
 275
 276                 } else {
 277                         // eh?
 278                 }
 279
 280         } else if (type == DataType::MIDI) {
 281
 282                 SMFSource* src = new SMFSource (s, path, SMFSource::Flag(0));
 283                 src->load_model (true, true);
 284 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 285                 // boost_debug_shared_ptr_mark_interesting (src, "Source");
 286 #endif
 287                 boost::shared_ptr<Source> ret (src);
 288
 289                 if (announce) {
 290                         SourceCreated (ret);
 291                 }
 292
 293                 return ret;
 294
 295         }
 296
 297         return boost::shared_ptr<Source>();
 298 }
 299
 300 boost::shared_ptr<Source>
 301 SourceFactory::createWritable (DataType type, Session& s, const std::string& path, const std::string& origin,
 302                                bool destructive, framecnt_t rate, bool announce, bool defer_peaks)
 303 {
 304         /* this might throw failed_constructor(), which is OK */
 305
 306         if (type == DataType::AUDIO) {
 307                 Source* src = new SndFileSource (s, path, origin,
 308                                 s.config.get_native_file_data_format(),
 309                                 s.config.get_native_file_header_format(),
 310                                 rate,
 311                                 (destructive
 312                                         ? Source::Flag (SndFileSource::default_writable_flags | Source::Destructive)
 313                                  : SndFileSource::default_writable_flags));
 314 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 315                 // boost_debug_shared_ptr_mark_interesting (src, "Source");
 316 #endif
 317                 boost::shared_ptr<Source> ret (src);
 318
 319                 if (setup_peakfile (ret, defer_peaks)) {
 320                         return boost::shared_ptr<Source>();
 321                 }
 322
 323                 // no analysis data - this is a new file
 324
 325                 if (announce) {
 326                         SourceCreated (ret);
 327                 }
 328                 return ret;
 329
 330         } else if (type == DataType::MIDI) {
 331                 // XXX writable flags should belong to MidiSource too
 332                 boost::shared_ptr<SMFSource> src (new SMFSource (s, path, SndFileSource::default_writable_flags));
 333                 assert (src->writable ());
 334
 335                 src->load_model (true, true);
 336 #ifdef BOOST_SP_ENABLE_DEBUG_HOOKS
 337                 // boost_debug_shared_ptr_mark_interesting (src, "Source");
 338 #endif
 339
 340                 // no analysis data - this is a new file
 341
 342                 if (announce) {
 343                         SourceCreated (src);
 344                 }
 345                 return src;
 346
 347         }
 348
 349         return boost::shared_ptr<Source> ();
 350 }
 351
 352 boost::shared_ptr<Source>
 353 SourceFactory::createFromPlaylist (DataType type, Session& s, boost::shared_ptr<Playlist> p, const ID& orig, const std::string& name,
 354                                    uint32_t chn, frameoffset_t start, framecnt_t len, bool copy, bool defer_peaks)
 355 {
 356         if (type == DataType::AUDIO) {
 357                 try {
 358
 359                         boost::shared_ptr<AudioPlaylist> ap = boost::dynamic_pointer_cast<AudioPlaylist>(p);
 360
 361                         if (ap) {
 362
 363                                 if (copy) {
 364                                         ap.reset (new AudioPlaylist (ap, start, len, name, true));
 365                                         start = 0;
 366                                 }
 367
 368                                 Source* src = new AudioPlaylistSource (s, orig, name, ap, chn, start, len, Source::Flag (0));
 369                                 boost::shared_ptr<Source> ret (src);
 370
 371                                 if (setup_peakfile (ret, defer_peaks)) {
 372                                         return boost::shared_ptr<Source>();
 373                                 }
 374
 375                                 ret->check_for_analysis_data_on_disk ();
 376                                 SourceCreated (ret);
 377                                 return ret;
 378                         }
 379                 }
 380
 381                 catch (failed_constructor& err) {
 382                         /* relax - return at function scope */
 383                 }
 384
 385         } else if (type == DataType::MIDI) {
 386
 387                 try {
 388
 389                         boost::shared_ptr<MidiPlaylist> ap = boost::dynamic_pointer_cast<MidiPlaylist>(p);
 390
 391                         if (ap) {
 392
 393                                 if (copy) {
 394                                         ap.reset (new MidiPlaylist (ap, start, len, name, true));
 395                                         start = 0;
 396                                 }
 397
 398                                 Source* src = new MidiPlaylistSource (s, orig, name, ap, chn, start, len, Source::Flag (0));
 399                                 boost::shared_ptr<Source> ret (src);
 400
 401                                 SourceCreated (ret);
 402                                 return ret;
 403                         }
 404                 }
 405
 406                 catch (failed_constructor& err) {
 407                         /* relax - return at function scope */
 408                 }
 409
 410         }
 411
 412         return boost::shared_ptr<Source>();
 413 }
 414