cinelerra-5.0/cinelerra/vtracking.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "edl.h"
  23 #include "edlsession.h"
  24 #include "localsession.h"
  25 #include "mainclock.h"
  26 #include "meterpanel.h"
  27 #include "mwindow.h"
  28 #include "vplayback.h"
  29 #include "vtimebar.h"
  30 #include "vtracking.h"
  31 #include "vwindow.h"
  32 #include "vwindowgui.h"
  33
  34
  35 VTracking::VTracking(MWindow *mwindow, VWindow *vwindow)
  36  : Tracking(mwindow)
  37 {
  38         this->vwindow = vwindow;
  39 }
  40
  41 VTracking::~VTracking()
  42 {
  43 }
  44
  45 PlaybackEngine* VTracking::get_playback_engine()
  46 {
  47         return vwindow->playback_engine;
  48 }
  49
  50 void VTracking::update_tracker(double position)
  51 {
  52         vwindow->gui->lock_window("VTracking::update_tracker");
  53         vwindow->get_edl()->local_session->set_selectionstart(position);
  54         vwindow->get_edl()->local_session->set_selectionend(position);
  55
  56         vwindow->gui->clock->update(position);
  57
  58 // This is going to boost the latency but we need to update the timebar
  59         vwindow->gui->timebar->update(1);
  60
  61         vwindow->gui->unlock_window();
  62
  63         update_meters((int64_t)(position * mwindow->edl->session->sample_rate));
  64 }
  65
  66 void VTracking::update_meters(int64_t position)
  67 {
  68         double output_levels[MAXCHANNELS];
  69
  70         int do_audio = get_playback_engine()->get_output_levels(output_levels,
  71                 position);
  72         if(do_audio)
  73         {
  74                 vwindow->gui->lock_window("VTracking::update_meters");
  75                 vwindow->gui->meters->update(output_levels);
  76                 vwindow->gui->unlock_window();
  77         }
  78 }
  79
  80 void VTracking::stop_meters()
  81 {
  82         vwindow->gui->lock_window("VTracking::stop_meters");
  83         vwindow->gui->meters->stop_meters();
  84         vwindow->gui->unlock_window();
  85 }
  86
  87 void VTracking::draw()
  88 {
  89 }