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Sourcecode: ardour version File versions

editor_export_audio.cc

/*
    Copyright (C) 2001 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 <unistd.h>
#include <climits>

#include <gtkmm/messagedialog.h>

#include "export_session_dialog.h"
#include "export_region_dialog.h"
#include "export_range_markers_dialog.h"
#include "editor.h"
#include "public_editor.h"
#include "selection.h"
#include "time_axis_view.h"
#include "audio_time_axis.h"
#include "audio_region_view.h"

#include <pbd/pthread_utils.h>
#include <ardour/types.h>
#include <ardour/export.h>
#include <ardour/audio_track.h>
#include <ardour/audiofilesource.h>
#include <ardour/audio_diskstream.h>
#include <ardour/audioregion.h>
#include <ardour/audioplaylist.h>
#include <ardour/source_factory.h>
#include <ardour/audiofilesource.h>

#include "i18n.h"

using namespace std;
using namespace ARDOUR;
using namespace PBD;
using namespace Gtk;

void
Editor::export_session()
{
      if (session) {
            export_range (session->current_start_frame(), session->current_end_frame());
      }
}

void
Editor::export_selection ()
{
      if (session) {
            if (selection->time.empty()) {
                  MessageDialog message (*this, _("There is no selection to export.\n\nSelect a selection using the range mouse mode"));
                  message.run ();
                  return;
            }

            export_range (selection->time.front().start, selection->time.front().end);
      }
}

void
Editor::export_range (nframes64_t start, nframes64_t end)
{
      if (session) {
            if (export_dialog == 0) {
                  export_dialog = new ExportSessionDialog (*this);
            }
            
            export_dialog->connect_to_session (session);
            export_dialog->set_range (start, end);
            export_dialog->start_export();
      }
}     

void
Editor::export_region ()
{
      if (clicked_regionview == 0) {
            return;
      }

      ExportDialog* dialog = new ExportRegionDialog (*this, clicked_regionview->region());
            
      dialog->connect_to_session (session);
      dialog->set_range (clicked_regionview->region()->first_frame(), clicked_regionview->region()->last_frame());
      dialog->start_export();
}

void
Editor::export_range_markers ()
{
      if (session) {

            if (session->locations()->num_range_markers() == 0) {
                  MessageDialog message (*this, _("There are no ranges to export.\n\nCreate 1 or more ranges by dragging the mouse in the range bar"));
                  message.run ();
                  return;
            }
            

            if (export_range_markers_dialog == 0) {
                  export_range_markers_dialog = new ExportRangeMarkersDialog(*this);
            }
            
            export_range_markers_dialog->connect_to_session (session);
            export_range_markers_dialog->start_export();
      }
}     

int
Editor::write_region_selection (RegionSelection& regions)
{
      for (RegionSelection::iterator i = regions.begin(); i != regions.end(); ++i) {
            AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
            if (arv)
                  if (write_region ("", arv->audio_region()) == false)
                        return -1;
      }

      return 0;
}

void
Editor::bounce_region_selection ()
{
      for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
            
            boost::shared_ptr<Region> region ((*i)->region());
            RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(&(*i)->get_time_axis_view());
            Track* track = dynamic_cast<Track*>(rtv->route().get());

            InterThreadInfo itt;

            itt.done = false;
            itt.cancel = false;
            itt.progress = 0.0f;

            boost::shared_ptr<Region> r = track->bounce_range (region->position(), region->position() + region->length(), itt);
            cerr << "Result of bounce of "
                 << region->name() << " len = " << region->length()
                 << " was "
                 << r->name() << " len = " << r->length()
                 << endl;
      }
}

bool
Editor::write_region (string path, boost::shared_ptr<AudioRegion> region)
{
      boost::shared_ptr<AudioFileSource> fs;
      const nframes64_t chunk_size = 4096;
      nframes64_t to_read;
      Sample buf[chunk_size];
      gain_t gain_buffer[chunk_size];
      nframes64_t pos;
      char s[PATH_MAX+1];
      uint32_t cnt;
      vector<boost::shared_ptr<AudioFileSource> > sources;
      uint32_t nchans;
      
      nchans = region->n_channels();
      
      /* don't do duplicate of the entire source if that's what is going on here */

      if (region->start() == 0 && region->length() == region->source()->length()) {
            /* XXX should link(2) to create a new inode with "path" */
            return true;
      }

      if (path.length() == 0) {

            for (uint32_t n=0; n < nchans; ++n) {
                  
                  for (cnt = 0; cnt < 999999; ++cnt) {
                        if (nchans == 1) {
                              snprintf (s, sizeof(s), "%s/%s_%" PRIu32 ".wav", session->sound_dir().c_str(),
                                      legalize_for_path(region->name()).c_str(), cnt);
                        }
                        else {
                              snprintf (s, sizeof(s), "%s/%s_%" PRIu32 "-%" PRId32 ".wav", session->sound_dir().c_str(),
                                      legalize_for_path(region->name()).c_str(), cnt, n);
                        }

                        path = s;
                        
                        if (::access (path.c_str(), F_OK) != 0) {
                              break;
                        }
                  }
                  
                  if (cnt == 999999) {
                        error << "" << endmsg;
                        goto error_out;
                  }
                  
            
                  
                  try {
                        fs = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createWritable (*session, path, false, session->frame_rate()));
                  }
                  
                  catch (failed_constructor& err) {
                        goto error_out;
                  }

                  sources.push_back (fs);
            }
      }
      else {
            /* TODO: make filesources based on passed path */

      }
      
      to_read = region->length();
      pos = region->position();

      while (to_read) {
            nframes64_t this_time;

            this_time = min (to_read, chunk_size);

            for (vector<boost::shared_ptr<AudioFileSource> >::iterator src=sources.begin(); src != sources.end(); ++src) {
                  
                  fs = (*src);

                  if (region->read_at (buf, buf, gain_buffer, pos, this_time) != this_time) {
                        break;
                  }
                  
                  if (fs->write (buf, this_time) != this_time) {
                        error << "" << endmsg;
                        goto error_out;
                  }
            }

            to_read -= this_time;
            pos += this_time;
      }

      time_t tnow;
      struct tm* now;
      time (&tnow);
      now = localtime (&tnow);
      
      for (vector<boost::shared_ptr<AudioFileSource> >::iterator src = sources.begin(); src != sources.end(); ++src) {
            (*src)->update_header (0, *now, tnow);
            (*src)->mark_immutable ();
      }

      return true;

error_out:

      for (vector<boost::shared_ptr<AudioFileSource> >::iterator i = sources.begin(); i != sources.end(); ++i) {
            (*i)->mark_for_remove ();
      }

      return 0;
}

int
Editor::write_audio_selection (TimeSelection& ts)
{
      int ret = 0;

      if (selection->tracks.empty()) {
            return 0;
      }

      for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {

            AudioTimeAxisView* atv;

            if ((atv = dynamic_cast<AudioTimeAxisView*>(*i)) == 0) {
                  continue;
            }

            if (atv->is_audio_track()) {

                  boost::shared_ptr<AudioPlaylist> playlist = boost::dynamic_pointer_cast<AudioPlaylist>(atv->get_diskstream()->playlist());
                  
                  if (playlist && write_audio_range (*playlist, atv->get_diskstream()->n_channels(), ts) == 0) {
                        ret = -1;
                        break;
                  }
            }
      }

      return ret;
}

bool
Editor::write_audio_range (AudioPlaylist& playlist, uint32_t channels, list<AudioRange>& range)
{
      boost::shared_ptr<AudioFileSource> fs;
      const nframes64_t chunk_size = 4096;
      nframes64_t nframes;
      Sample buf[chunk_size];
      gain_t gain_buffer[chunk_size];
      nframes64_t pos;
      char s[PATH_MAX+1];
      uint32_t cnt;
      string path;
      vector<boost::shared_ptr<AudioFileSource> > sources;

      for (uint32_t n=0; n < channels; ++n) {
            
            for (cnt = 0; cnt < 999999; ++cnt) {
                  if (channels == 1) {
                        snprintf (s, sizeof(s), "%s/%s_%" PRIu32 ".wav", session->sound_dir().c_str(),
                                legalize_for_path(playlist.name()).c_str(), cnt);
                  }
                  else {
                        snprintf (s, sizeof(s), "%s/%s_%" PRIu32 "-%" PRId32 ".wav", session->sound_dir().c_str(),
                                legalize_for_path(playlist.name()).c_str(), cnt, n);
                  }
                  
                  if (::access (s, F_OK) != 0) {
                        break;
                  }
            }
            
            if (cnt == 999999) {
                  error << "" << endmsg;
                  goto error_out;
            }

            path = s;
            
            try {
                  fs = boost::dynamic_pointer_cast<AudioFileSource> (SourceFactory::createWritable (*session, path, false, session->frame_rate()));
            }
            
            catch (failed_constructor& err) {
                  goto error_out;
            }
            
            sources.push_back (fs);

      }
      

      for (list<AudioRange>::iterator i = range.begin(); i != range.end();) {
      
            nframes = (*i).length();
            pos = (*i).start;
            
            while (nframes) {
                  nframes64_t this_time;
                  
                  this_time = min (nframes, chunk_size);

                  for (uint32_t n=0; n < channels; ++n) {

                        fs = sources[n];
                        
                        if (playlist.read (buf, buf, gain_buffer, pos, this_time, n) != this_time) {
                              break;
                        }
                        
                        if (fs->write (buf, this_time) != this_time) {
                              goto error_out;
                        }
                  }
                  
                  nframes -= this_time;
                  pos += this_time;
            }
            
            list<AudioRange>::iterator tmp = i;
            ++tmp;

            if (tmp != range.end()) {
                  
                  /* fill gaps with silence */
                  
                  nframes = (*tmp).start - (*i).end;

                  while (nframes) {

                        nframes64_t this_time = min (nframes, chunk_size);
                        memset (buf, 0, sizeof (Sample) * this_time);

                        for (uint32_t n=0; n < channels; ++n) {

                              fs = sources[n];
                              if (fs->write (buf, this_time) != this_time) {
                                    goto error_out;
                              }
                        }

                        nframes -= this_time;
                  }
            }

            i = tmp;
      }

      time_t tnow;
      struct tm* now;
      time (&tnow);
      now = localtime (&tnow);

      for (vector<boost::shared_ptr<AudioFileSource> >::iterator s = sources.begin(); s != sources.end(); ++s) {
            (*s)->update_header (0, *now, tnow);
            (*s)->mark_immutable ();
            // do we need to ref it again?
      }
      
      return true;

error_out:
      /* unref created files */

      for (vector<boost::shared_ptr<AudioFileSource> >::iterator i = sources.begin(); i != sources.end(); ++i) {
            (*i)->mark_for_remove ();
      }

      return false;
}

void
Editor::write_selection ()
{
      if (!selection->time.empty()) {
            write_audio_selection (selection->time);
      } else if (!selection->regions.empty()) {
            write_region_selection (selection->regions);
      }
}

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