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Sourcecode: ardour version File versions

editor_audio_import.cc

/*
    Copyright (C) 2000-2006 Paul Davis 

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <unistd.h>

#include <pbd/pthread_utils.h>
#include <pbd/basename.h>
#include <pbd/shortpath.h>

#include <gtkmm2ext/choice.h>
#include <gtkmm2ext/window_title.h>

#include <ardour/session.h>
#include <ardour/audioplaylist.h>
#include <ardour/audioregion.h>
#include <ardour/audio_diskstream.h>
#include <ardour/utils.h>
#include <ardour/audio_track.h>
#include <ardour/audioplaylist.h>
#include <ardour/audiofilesource.h>
#include <ardour/region_factory.h>
#include <ardour/source_factory.h>
#include <pbd/memento_command.h>

#include "ardour_ui.h"
#include "editor.h"
#include "sfdb_ui.h"
#include "editing.h"
#include "audio_time_axis.h"
#include "utils.h"

#include "i18n.h"

using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace sigc;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace Editing;
using Glib::ustring;

/* Functions supporting the incorporation of external (non-captured) audio material into ardour */

void
Editor::add_external_audio_action (ImportMode mode)
{
      nframes_t& pos = edit_cursor->current_frame;
      AudioTrack* track = 0;

      if (!selection->tracks.empty()) {
            AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*>(selection->tracks.front());
            if (atv) {
                  track = atv->audio_track();
            }
      }

      bring_in_external_audio (mode, track, pos, false);
}

void
Editor::bring_in_external_audio (ImportMode mode, AudioTrack* track, nframes_t& pos, bool prompt)
{
      if (session == 0) {
            MessageDialog msg (0, _("You can't import or embed an audiofile until you have a session loaded."));
            msg.run ();
            return;
      }

      SoundFileOmega sfdb (_("Add existing audio to session"), session);
      sfdb.set_mode (mode);

      switch (sfdb.run()) {
      case SoundFileOmega::ResponseImport:
            do_import (sfdb.get_paths(), sfdb.get_split(), sfdb.get_mode(), track, pos, prompt);
            break;
            
      case SoundFileOmega::ResponseEmbed:
            do_embed (sfdb.get_paths(), sfdb.get_split(), sfdb.get_mode(), track, pos, prompt);
            break;

      default:
            break;
      }
}

void
Editor::do_import (vector<ustring> paths, bool split, ImportMode mode, AudioTrack* track, nframes_t& pos, bool prompt)
{
      /* SFDB sets "multichan" to true to indicate "split channels"
         so reverse the setting to match the way libardour
         interprets it.
      */
      
      import_status.multichan = !split;

      if (interthread_progress_window == 0) {
            build_interthread_progress_window ();
      }

      vector<ustring> to_import;

      for (vector<ustring>::iterator a = paths.begin(); a != paths.end(); ++a) {

            to_import.clear ();
            to_import.push_back (*a);

            import_sndfile (to_import, mode, track, pos);
      }

      interthread_progress_window->hide_all ();
}

void
Editor::do_embed (vector<ustring> paths, bool split, ImportMode mode, AudioTrack* track, nframes_t& pos, bool prompt)
{
      bool multiple_files = paths.size() > 1;
      bool check_sample_rate = true;
      vector<ustring>::iterator a;

      for (a = paths.begin(); a != paths.end(); ) {

            cerr << "Considering embed of " << (*a) << endl;
      
            Glib::ustring path = *a;
            Glib::ustring pair_base;
            vector<ustring> to_embed;

            to_embed.push_back (path);
            a = paths.erase (a);

            if (path_is_paired (path, pair_base)) {

                  ustring::size_type len = pair_base.length();

                  for (vector<Glib::ustring>::iterator b = paths.begin(); b != paths.end(); ) {

                        if (((*b).substr (0, len) == pair_base) && ((*b).length() == path.length())) {

                              to_embed.push_back (*b);
                                    
                              /* don't process this one again */

                              b = paths.erase (b);
                              break;

                        } else {
                              ++b;
                        }
                  }
            }

            if (to_embed.size() > 1) {

                  vector<string> choices;

                  choices.push_back (string_compose (_("Import as a %1 region"),
                                             to_embed.size() > 2 ? _("multichannel") : _("stereo")));
                  choices.push_back (_("Import as multiple regions"));
                  
                  Choice chooser (string_compose (_("Paired files detected (%1, %2 ...).\nDo you want to:"),
                                                   to_embed[0],
                                                   to_embed[1]),
                                       choices);
                  
                  if (chooser.run () == 0) {
                        
                        /* keep them paired */

                        if (embed_sndfile (to_embed, split, multiple_files, check_sample_rate, mode, track, pos, prompt) < -1) {
                              break;
                        }

                  } else {

                        /* one thing per file */

                        vector<ustring> foo;

                        for (vector<ustring>::iterator x = to_embed.begin(); x != to_embed.end(); ++x) {

                              foo.clear ();
                              foo.push_back (*x);

                              if (embed_sndfile (foo, split, multiple_files, check_sample_rate, mode, track, pos, prompt) < -1) {
                                    break;
                              }
                        }
                  }

            } else {
                  
                  if (embed_sndfile (to_embed, split, multiple_files, check_sample_rate, mode, track, pos, prompt) < -1) {
                        break;
                  }
            }
      }
      
      if (a == paths.end()) {
            session->save_state ("");
      }
}

int
Editor::import_sndfile (vector<ustring> paths, ImportMode mode, AudioTrack* track, nframes_t& pos)
{
      WindowTitle title = string_compose (_("importing %1"), paths.front());

      interthread_progress_window->set_title (title.get_string());
      interthread_progress_window->set_position (Gtk::WIN_POS_MOUSE);
      interthread_progress_window->show_all ();
      interthread_progress_bar.set_fraction (0.0f);
      interthread_cancel_label.set_text (_("Cancel Import"));
      current_interthread_info = &import_status;

      import_status.paths = paths;
      import_status.done = false;
      import_status.cancel = false;
      import_status.freeze = false;
      import_status.done = 0.0;
      
      interthread_progress_connection = Glib::signal_timeout().connect 
            (bind (mem_fun(*this, &Editor::import_progress_timeout), (gpointer) 0), 100);
      
      track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
      ARDOUR_UI::instance()->flush_pending ();

      /* start import thread for this spec. this will ultimately call Session::import_audiofile()
         and if successful will add the file(s) as a region to the session region list.
      */
      
      pthread_create_and_store ("import", &import_status.thread, 0, _import_thread, this);
      pthread_detach (import_status.thread);
      
      while (!(import_status.done || import_status.cancel)) {
            gtk_main_iteration ();
      }

      interthread_progress_window->hide ();
      
      import_status.done = true;
      interthread_progress_connection.disconnect ();
      
      /* import thread finished - see if we should build a new track */
      
      if (!import_status.new_regions.empty()) {
            boost::shared_ptr<AudioRegion> region (import_status.new_regions.front());
            finish_bringing_in_audio (region, region->n_channels(), region->n_channels(), track, pos, mode);
      }

      track_canvas.get_window()->set_cursor (*current_canvas_cursor);
      return 0;
}

int
Editor::embed_sndfile (vector<Glib::ustring> paths, bool split, bool multiple_files, bool& check_sample_rate, ImportMode mode, 
                   AudioTrack* track, nframes_t& pos, bool prompt)
{
      boost::shared_ptr<AudioFileSource> source;
      SourceList sources;
      boost::shared_ptr<AudioRegion> region;
      string linked_path;
      SoundFileInfo finfo;
      ustring region_name;
      uint32_t input_chan = 0;
      uint32_t output_chan = 0;
      int ret = 0;

      track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
      ARDOUR_UI::instance()->flush_pending ();

      for (vector<Glib::ustring>::iterator p = paths.begin(); p != paths.end(); ++p) {

            ustring path = *p;

            /* lets see if we can link it into the session */
            
            linked_path = session->sound_dir();
            linked_path += '/';
            linked_path += Glib::path_get_basename (path);
            
            if (link (path.c_str(), linked_path.c_str()) == 0) {

                  /* there are many reasons why link(2) might have failed.
                     but if it succeeds, we now have a link in the
                     session sound dir that will protect against
                     unlinking of the original path. nice.
                  */
                  
                  path = linked_path;

            } else {

                  /* one possible reason is that its already linked */

                  if (errno == EEXIST) {
                        struct stat sb;

                        if (stat (linked_path.c_str(), &sb) == 0) {
                              if (sb.st_nlink > 1) { // its a hard link, assume its the one we want
                                    path = linked_path;
                              }
                        }
                  }

            }
            
            /* note that we temporarily truncated _id at the colon */
            
            string error_msg;
            
            if (!AudioFileSource::get_soundfile_info (path, finfo, error_msg)) {
                  error << string_compose(_("Editor: cannot open file \"%1\", (%2)"), selection, error_msg ) << endmsg;
                  goto out;
            }
            
            if (check_sample_rate  && (finfo.samplerate != (int) session->frame_rate())) {
                  vector<string> choices;
                  
                  if (multiple_files) {
                        choices.push_back (_("Cancel entire import"));
                        choices.push_back (_("Don't embed it"));
                        choices.push_back (_("Embed all without questions"));
                  
                        Gtkmm2ext::Choice rate_choice (
                              string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), 
                                          short_path (path, 40)),
                              choices, false);
                        
                        int resx = rate_choice.run ();
                        
                        switch (resx) {
                        case 0: /* stop a multi-file import */
                              ret = -2;
                              goto out;
                        case 1: /* don't embed this one */
                              ret = -1;
                              goto out;
                        case 2: /* do it, and the rest without asking */
                              check_sample_rate = false;
                              break;
                        case 3: /* do it */
                              break;
                        default:
                              ret = -2;
                              goto out;
                        }
                  } else {
                        choices.push_back (_("Cancel"));
                        choices.push_back (_("Embed it anyway"));
                  
                        Gtkmm2ext::Choice rate_choice (
                              string_compose (_("%1\nThis audiofile's sample rate doesn't match the session sample rate!"), path),
                              choices, false);
                        
                        int resx = rate_choice.run ();
                        
                        switch (resx) {
                        case 0: /* don't import */
                              ret = -1;
                              goto out;
                        case 1: /* do it */
                              break;
                        default:
                              ret = -2;
                              goto out;
                        }
                  }
            }
            
            track_canvas.get_window()->set_cursor (Gdk::Cursor (Gdk::WATCH));
            ARDOUR_UI::instance()->flush_pending ();
      
            /* make the proper number of channels in the region */
            
            input_chan += finfo.channels;

            for (int n = 0; n < finfo.channels; ++n)
            {
                  try {

                        /* check if we have this thing embedded already */

                        boost::shared_ptr<Source> s;

                        if ((s = session->source_by_path_and_channel (path, n)) == 0) {
                              source = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createReadable 
                                                                         (*session, path,  n,
                                                                        (mode == ImportAsTapeTrack ? 
                                                                         AudioFileSource::Destructive : 
                                                                         AudioFileSource::Flag (0))));
                        } else {
                              source = boost::dynamic_pointer_cast<AudioFileSource> (s);
                        }

                        sources.push_back(source);
                  } 
                  
                  catch (failed_constructor& err) {
                        error << string_compose(_("could not open %1"), path) << endmsg;
                        goto out;
                  }
                  
                  ARDOUR_UI::instance()->flush_pending ();
            }
      }

      if (sources.empty()) {
            goto out;
      }

      if (sources[0]->natural_position() != 0) {
            pos = sources[0]->natural_position();
      } 

      region_name = region_name_from_path (paths.front(), (sources.size() > 1));
      
      region = boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (sources, 0, sources[0]->length(), region_name, 0,
                                                              Region::Flag (Region::DefaultFlags|Region::WholeFile|Region::External)));

      if (Config->get_output_auto_connect() & AutoConnectMaster) {
            output_chan = (session->master_out() ? session->master_out()->n_inputs() : input_chan);
      } else {
            output_chan = input_chan;
      }

      finish_bringing_in_audio (region, input_chan, output_chan, track, pos, mode);
      
  out:
      track_canvas.get_window()->set_cursor (*current_canvas_cursor);
      return ret;
}

int
Editor::finish_bringing_in_audio (boost::shared_ptr<AudioRegion> region, uint32_t in_chans, uint32_t out_chans, AudioTrack* track, nframes_t& pos, ImportMode mode)
{
      switch (mode) {
      case ImportAsRegion:
            /* relax, its been done */
            break;
            
      case ImportToTrack:
            if (track) {
                  boost::shared_ptr<Playlist> playlist = track->diskstream()->playlist();
                  
                  boost::shared_ptr<AudioRegion> copy (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region)));
                  begin_reversible_command (_("insert sndfile"));
                        XMLNode &before = playlist->get_state();
                  playlist->add_region (copy, pos);
                  session->add_command (new MementoCommand<Playlist>(*playlist, &before, &playlist->get_state()));
                  commit_reversible_command ();

                  pos += region->length();
            }
            break;
            
      case ImportAsTrack:
      { 
            list<boost::shared_ptr<AudioTrack> > at (session->new_audio_track (in_chans, out_chans, Normal, 1));
            if (!at.empty()) {
                  boost::shared_ptr<AudioRegion> copy (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region)));
                  at.front()->diskstream()->playlist()->add_region (copy, pos);
            }
            break;
      }

      case ImportAsTapeTrack:
      {
            list<boost::shared_ptr<AudioTrack> > at (session->new_audio_track (in_chans, out_chans, Destructive));
            if (!at.empty()) {
                  boost::shared_ptr<AudioRegion> copy (boost::dynamic_pointer_cast<AudioRegion> (RegionFactory::create (region)));
                  at.front()->diskstream()->playlist()->add_region (copy, pos);
            }
            break;
      }
      }

      return 0;
}

void *
Editor::_import_thread (void *arg)
{
      PBD::ThreadCreated (pthread_self(), X_("Import"));

      Editor *ed = (Editor *) arg;
      return ed->import_thread ();
}

void *
Editor::import_thread ()
{
      session->import_audiofile (import_status);
      pthread_exit_pbd (0);
      /*NOTREACHED*/
      return 0;
}

gint
Editor::import_progress_timeout (void *arg)
{
      interthread_progress_label.set_text (import_status.doing_what);

      if (import_status.freeze) {
            interthread_cancel_button.set_sensitive(false);
      } else {
            interthread_cancel_button.set_sensitive(true);
      }

      if (import_status.doing_what == "building peak files") {
            interthread_progress_bar.pulse ();
            return FALSE;
      } else {
            interthread_progress_bar.set_fraction (import_status.progress);
      }

      return !(import_status.done || import_status.cancel);
}


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