src/wx/video_panel.cc

   1 /*
   2     Copyright (C) 2012-2018 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic 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     DCP-o-matic 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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #include "filter_dialog.h"
  22 #include "video_panel.h"
  23 #include "wx_util.h"
  24 #include "content_colour_conversion_dialog.h"
  25 #include "content_widget.h"
  26 #include "content_panel.h"
  27 #include "static_text.h"
  28 #include "check_box.h"
  29 #include "dcpomatic_button.h"
  30 #include "lib/filter.h"
  31 #include "lib/ffmpeg_content.h"
  32 #include "lib/colour_conversion.h"
  33 #include "lib/config.h"
  34 #include "lib/util.h"
  35 #include "lib/ratio.h"
  36 #include "lib/frame_rate_change.h"
  37 #include "lib/dcp_content.h"
  38 #include "lib/video_content.h"
  39 #include <wx/spinctrl.h>
  40 #include <boost/foreach.hpp>
  41 #include <boost/unordered_set.hpp>
  42 #include <boost/functional/hash.hpp>
  43 #include <set>
  44 #include <iostream>
  45
  46 using std::vector;
  47 using std::string;
  48 using std::pair;
  49 using std::cout;
  50 using std::list;
  51 using std::set;
  52 using boost::shared_ptr;
  53 using boost::dynamic_pointer_cast;
  54 using boost::bind;
  55 using boost::optional;
  56
  57 static VideoContentScale
  58 index_to_scale (int n)
  59 {
  60         vector<VideoContentScale> scales = VideoContentScale::all ();
  61         DCPOMATIC_ASSERT (n >= 0);
  62         DCPOMATIC_ASSERT (n < int (scales.size ()));
  63         return scales[n];
  64 }
  65
  66 static int
  67 scale_to_index (VideoContentScale scale)
  68 {
  69         vector<VideoContentScale> scales = VideoContentScale::all ();
  70         for (size_t i = 0; i < scales.size(); ++i) {
  71                 if (scales[i] == scale) {
  72                         return i;
  73                 }
  74         }
  75
  76         DCPOMATIC_ASSERT (false);
  77 }
  78
  79 VideoPanel::VideoPanel (ContentPanel* p)
  80         : ContentSubPanel (p, _("Video"))
  81 {
  82         _reference = new CheckBox (this, _("Use this DCP's video as OV and make VF"));
  83         _reference_note = new StaticText (this, wxT(""));
  84         _reference_note->Wrap (200);
  85         wxFont font = _reference_note->GetFont();
  86         font.SetStyle(wxFONTSTYLE_ITALIC);
  87         font.SetPointSize(font.GetPointSize() - 1);
  88         _reference_note->SetFont(font);
  89
  90         _type_label = create_label (this, _("Type"), true);
  91         _frame_type = new ContentChoice<VideoContent, VideoFrameType> (
  92                 this,
  93                 new wxChoice (this, wxID_ANY),
  94                 VideoContentProperty::FRAME_TYPE,
  95                 &Content::video,
  96                 boost::mem_fn (&VideoContent::frame_type),
  97                 boost::mem_fn (&VideoContent::set_frame_type),
  98                 &caster<int, VideoFrameType>,
  99                 &caster<VideoFrameType, int>
 100                 );
 101
 102         _left_crop_label = create_label (this, _("Left crop"), true);
 103         _left_crop = new ContentSpinCtrl<VideoContent> (
 104                 this,
 105                 new wxSpinCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize (64, -1)),
 106                 VideoContentProperty::CROP,
 107                 &Content::video,
 108                 boost::mem_fn (&VideoContent::left_crop),
 109                 boost::mem_fn (&VideoContent::set_left_crop)
 110                 );
 111
 112         _right_crop_label = create_label (this, _("Right crop"), true);
 113         _right_crop = new ContentSpinCtrl<VideoContent> (
 114                 this,
 115                 new wxSpinCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize (64, -1)),
 116                 VideoContentProperty::CROP,
 117                 &Content::video,
 118                 boost::mem_fn (&VideoContent::right_crop),
 119                 boost::mem_fn (&VideoContent::set_right_crop)
 120                 );
 121
 122         _top_crop_label = create_label (this, _("Top crop"), true);
 123         _top_crop = new ContentSpinCtrl<VideoContent> (
 124                 this,
 125                 new wxSpinCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize (64, -1)),
 126                 VideoContentProperty::CROP,
 127                 &Content::video,
 128                 boost::mem_fn (&VideoContent::top_crop),
 129                 boost::mem_fn (&VideoContent::set_top_crop)
 130                 );
 131
 132         _bottom_crop_label = create_label (this, _("Bottom crop"), true);
 133         _bottom_crop = new ContentSpinCtrl<VideoContent> (
 134                 this,
 135                 new wxSpinCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize (64, -1)),
 136                 VideoContentProperty::CROP,
 137                 &Content::video,
 138                 boost::mem_fn (&VideoContent::bottom_crop),
 139                 boost::mem_fn (&VideoContent::set_bottom_crop)
 140                 );
 141
 142         _fade_in_label = create_label (this, _("Fade in"), true);
 143         _fade_in = new Timecode<ContentTime> (this);
 144
 145         _fade_out_label = create_label (this, _("Fade out"), true);
 146         _fade_out = new Timecode<ContentTime> (this);
 147
 148         _scale_to_label = create_label (this, _("Scale to"), true);
 149         _scale = new ContentChoice<VideoContent, VideoContentScale> (
 150                 this,
 151                 new wxChoice (this, wxID_ANY),
 152                 VideoContentProperty::SCALE,
 153                 &Content::video,
 154                 boost::mem_fn (&VideoContent::scale),
 155                 boost::mem_fn (&VideoContent::set_scale),
 156                 &index_to_scale,
 157                 &scale_to_index
 158                 );
 159
 160         wxClientDC dc (this);
 161         wxSize size = dc.GetTextExtent (wxT ("A quite long name"));
 162         size.SetHeight (-1);
 163
 164         _filters_label = create_label (this, _("Filters"), true);
 165         _filters = new StaticText (this, _("None"), wxDefaultPosition, size);
 166         _filters_button = new Button (this, _("Edit..."));
 167
 168         _colour_conversion_label = create_label (this, _("Colour conversion"), true);
 169         _colour_conversion = new wxChoice (this, wxID_ANY, wxDefaultPosition, size);
 170         _colour_conversion->Append (_("None"));
 171         BOOST_FOREACH (PresetColourConversion const & i, PresetColourConversion::all()) {
 172                 _colour_conversion->Append (std_to_wx (i.name));
 173         }
 174
 175         /// TRANSLATORS: translate the word "Custom" here; do not include the "Colour|" prefix
 176         _colour_conversion->Append (S_("Colour|Custom"));
 177         _edit_colour_conversion_button = new Button (this, _("Edit..."));
 178
 179         _description = new StaticText (this, wxT ("\n \n \n \n \n"), wxDefaultPosition, wxDefaultSize);
 180         _description->SetFont(font);
 181
 182         _left_crop->wrapped()->SetRange (0, 4096);
 183         _top_crop->wrapped()->SetRange (0, 4096);
 184         _right_crop->wrapped()->SetRange (0, 4096);
 185         _bottom_crop->wrapped()->SetRange (0, 4096);
 186
 187         _scale->wrapped()->Clear ();
 188         BOOST_FOREACH (VideoContentScale const & i, VideoContentScale::all ()) {
 189                 _scale->wrapped()->Append (std_to_wx (i.name ()));
 190         }
 191
 192         _frame_type->wrapped()->Append (_("2D"));
 193         _frame_type->wrapped()->Append (_("3D"));
 194         _frame_type->wrapped()->Append (_("3D left/right"));
 195         _frame_type->wrapped()->Append (_("3D top/bottom"));
 196         _frame_type->wrapped()->Append (_("3D alternate"));
 197         _frame_type->wrapped()->Append (_("3D left only"));
 198         _frame_type->wrapped()->Append (_("3D right only"));
 199
 200         content_selection_changed ();
 201
 202         _fade_in->Changed.connect (boost::bind (&VideoPanel::fade_in_changed, this));
 203         _fade_out->Changed.connect (boost::bind (&VideoPanel::fade_out_changed, this));
 204
 205         _reference->Bind                     (wxEVT_CHECKBOX, boost::bind (&VideoPanel::reference_clicked, this));
 206         _filters_button->Bind                (wxEVT_BUTTON,   boost::bind (&VideoPanel::edit_filters_clicked, this));
 207         _colour_conversion->Bind             (wxEVT_CHOICE,   boost::bind (&VideoPanel::colour_conversion_changed, this));
 208         _edit_colour_conversion_button->Bind (wxEVT_BUTTON,   boost::bind (&VideoPanel::edit_colour_conversion_clicked, this));
 209
 210         add_to_grid ();
 211 }
 212
 213 void
 214 VideoPanel::add_to_grid ()
 215 {
 216         bool const full = Config::instance()->interface_complexity() == Config::INTERFACE_FULL;
 217
 218         int r = 0;
 219
 220         _reference->Show (full);
 221         _reference_note->Show (full);
 222
 223         if (full) {
 224                 wxBoxSizer* reference_sizer = new wxBoxSizer (wxVERTICAL);
 225                 reference_sizer->Add (_reference, 0);
 226                 reference_sizer->Add (_reference_note, 0);
 227                 _grid->Add (reference_sizer, wxGBPosition(r, 0), wxGBSpan(1, 3));
 228                 ++r;
 229         }
 230
 231         add_label_to_sizer (_grid, _type_label, true, wxGBPosition(r, 0));
 232         _frame_type->add (_grid, wxGBPosition(r, 1), wxGBSpan(1, 2));
 233         ++r;
 234
 235         int cr = 0;
 236         wxGridBagSizer* crop = new wxGridBagSizer (DCPOMATIC_SIZER_X_GAP, DCPOMATIC_SIZER_Y_GAP);
 237         add_label_to_sizer (crop, _left_crop_label, true, wxGBPosition (cr, 0));
 238         _left_crop->add (crop, wxGBPosition (cr, 1));
 239         add_label_to_sizer (crop, _right_crop_label, true, wxGBPosition (cr, 2));
 240         _right_crop->add (crop, wxGBPosition (cr, 3));
 241         ++cr;
 242         add_label_to_sizer (crop, _top_crop_label, true, wxGBPosition (cr, 0));
 243         _top_crop->add (crop, wxGBPosition (cr, 1));
 244         add_label_to_sizer (crop, _bottom_crop_label, true, wxGBPosition (cr, 2));
 245         _bottom_crop->add (crop, wxGBPosition (cr, 3));
 246         _grid->Add (crop, wxGBPosition (r, 0), wxGBSpan (2, 4));
 247         r += 2;
 248
 249         _scale_to_label->Show (full);
 250         _scale->show (full);
 251         _filters_label->Show (full);
 252         _filters->Show (full);
 253         _filters_button->Show (full);
 254         _colour_conversion_label->Show (full);
 255         _colour_conversion->Show (full);
 256         _edit_colour_conversion_button->Show (full);
 257
 258         add_label_to_sizer (_grid, _fade_in_label, true, wxGBPosition (r, 0));
 259         _grid->Add (_fade_in, wxGBPosition (r, 1), wxGBSpan (1, 3));
 260         ++r;
 261
 262         add_label_to_sizer (_grid, _fade_out_label, true, wxGBPosition (r, 0));
 263         _grid->Add (_fade_out, wxGBPosition (r, 1), wxGBSpan (1, 3));
 264         ++r;
 265
 266         if (full) {
 267                 add_label_to_sizer (_grid, _scale_to_label, true, wxGBPosition (r, 0));
 268                 _scale->add (_grid, wxGBPosition (r, 1), wxGBSpan (1, 2));
 269                 ++r;
 270
 271                 add_label_to_sizer (_grid, _filters_label, true, wxGBPosition (r, 0));
 272                 {
 273                         wxSizer* s = new wxBoxSizer (wxHORIZONTAL);
 274                         s->Add (_filters, 1, wxALIGN_CENTER_VERTICAL | wxTOP | wxBOTTOM | wxRIGHT, 6);
 275                         s->Add (_filters_button, 0, wxALIGN_CENTER_VERTICAL);
 276                         _grid->Add (s, wxGBPosition (r, 1), wxDefaultSpan, wxALIGN_CENTER_VERTICAL);
 277                 }
 278                 ++r;
 279
 280                 add_label_to_sizer (_grid, _colour_conversion_label, true, wxGBPosition(r, 0));
 281                 {
 282                         wxSizer* s = new wxBoxSizer (wxHORIZONTAL);
 283                         s->Add (_colour_conversion, 1, wxALIGN_CENTER_VERTICAL | wxTOP | wxBOTTOM | wxRIGHT, 6);
 284                         s->Add (_edit_colour_conversion_button, 0, wxALIGN_CENTER_VERTICAL);
 285                         _grid->Add (s, wxGBPosition (r, 1), wxDefaultSpan, wxALIGN_CENTER_VERTICAL);
 286                 }
 287                 ++r;
 288         }
 289
 290         _grid->Add (_description, wxGBPosition (r, 0), wxGBSpan (1, 4), wxEXPAND | wxALIGN_CENTER_VERTICAL, 6);
 291         ++r;
 292 }
 293
 294
 295 void
 296 VideoPanel::film_changed (Film::Property property)
 297 {
 298         switch (property) {
 299         case Film::VIDEO_FRAME_RATE:
 300         case Film::CONTAINER:
 301         case Film::RESOLUTION:
 302                 setup_description ();
 303                 setup_sensitivity ();
 304                 break;
 305         case Film::REEL_TYPE:
 306         case Film::INTEROP:
 307                 setup_sensitivity ();
 308                 break;
 309         default:
 310                 break;
 311         }
 312 }
 313
 314 std::size_t
 315 hash_value (boost::optional<ColourConversion> const & c)
 316 {
 317         boost::hash<string> hasher;
 318         if (!c) {
 319                 return hasher ("none");
 320         }
 321         return hasher (c->identifier());
 322 }
 323
 324
 325 void
 326 VideoPanel::film_content_changed (int property)
 327 {
 328         ContentList vc = _parent->selected_video ();
 329         shared_ptr<Content> vcs;
 330         shared_ptr<FFmpegContent> fcs;
 331         if (!vc.empty ()) {
 332                 vcs = vc.front ();
 333                 fcs = dynamic_pointer_cast<FFmpegContent> (vcs);
 334         }
 335
 336         if (property == ContentProperty::VIDEO_FRAME_RATE ||
 337             property == VideoContentProperty::FRAME_TYPE ||
 338             property == VideoContentProperty::CROP ||
 339             property == VideoContentProperty::SCALE) {
 340                 setup_description ();
 341         } else if (property == VideoContentProperty::COLOUR_CONVERSION) {
 342                 boost::unordered_set<optional<ColourConversion> > check;
 343                 BOOST_FOREACH (shared_ptr<const Content> i, vc) {
 344                         check.insert (i->video->colour_conversion());
 345                 }
 346
 347                 /* Remove any "Many" entry that we might have added previously.  There should
 348                  * be entries for each preset plus one for "None" and one for "Custom".
 349                  */
 350                 vector<PresetColourConversion> cc = PresetColourConversion::all ();
 351                 if (_colour_conversion->GetCount() > cc.size() + 2) {
 352                         _colour_conversion->Delete (_colour_conversion->GetCount() - 1);
 353                 }
 354
 355                 if (check.size() == 1) {
 356                         if (vcs && vcs->video->colour_conversion ()) {
 357                                 optional<size_t> preset = vcs->video->colour_conversion().get().preset ();
 358                                 if (preset) {
 359                                         checked_set (_colour_conversion, preset.get() + 1);
 360                                 } else {
 361                                         checked_set (_colour_conversion, cc.size() + 1);
 362                                 }
 363                         } else {
 364                                 checked_set (_colour_conversion, 0);
 365                         }
 366                 } else if (check.size() > 1) {
 367                         /* Add a "many" entry and select it as an indication that multiple different
 368                          * colour conversions are present in the selection.
 369                          */
 370                         _colour_conversion->Append (_("Many"));
 371                         checked_set (_colour_conversion, _colour_conversion->GetCount() - 1);
 372                 }
 373
 374                 setup_sensitivity ();
 375
 376         } else if (property == FFmpegContentProperty::FILTERS) {
 377                 if (fcs) {
 378                         string p = Filter::ffmpeg_string (fcs->filters ());
 379                         if (p.empty ()) {
 380                                 checked_set (_filters, _("None"));
 381                         } else {
 382                                 if (p.length() > 25) {
 383                                         p = p.substr (0, 25) + "...";
 384                                 }
 385                                 checked_set (_filters, p);
 386                         }
 387                 }
 388         } else if (property == VideoContentProperty::FADE_IN) {
 389                 set<Frame> check;
 390                 BOOST_FOREACH (shared_ptr<const Content> i, vc) {
 391                         check.insert (i->video->fade_in ());
 392                 }
 393
 394                 if (check.size() == 1) {
 395                         _fade_in->set (
 396                                 ContentTime::from_frames (vc.front()->video->fade_in(), vc.front()->active_video_frame_rate(_parent->film())),
 397                                 vc.front()->active_video_frame_rate(_parent->film())
 398                                 );
 399                 } else {
 400                         _fade_in->clear ();
 401                 }
 402         } else if (property == VideoContentProperty::FADE_OUT) {
 403                 set<Frame> check;
 404                 BOOST_FOREACH (shared_ptr<const Content> i, vc) {
 405                         check.insert (i->video->fade_out ());
 406                 }
 407
 408                 if (check.size() == 1) {
 409                         _fade_out->set (
 410                                 ContentTime::from_frames (vc.front()->video->fade_out(), vc.front()->active_video_frame_rate(_parent->film())),
 411                                 vc.front()->active_video_frame_rate(_parent->film())
 412                                 );
 413                 } else {
 414                         _fade_out->clear ();
 415                 }
 416         } else if (property == DCPContentProperty::REFERENCE_VIDEO) {
 417                 if (vc.size() == 1) {
 418                         shared_ptr<DCPContent> dcp = dynamic_pointer_cast<DCPContent> (vc.front ());
 419                         checked_set (_reference, dcp ? dcp->reference_video () : false);
 420                 } else {
 421                         checked_set (_reference, false);
 422                 }
 423
 424                 setup_sensitivity ();
 425         }
 426 }
 427
 428 /** Called when the `Edit filters' button has been clicked */
 429 void
 430 VideoPanel::edit_filters_clicked ()
 431 {
 432         FFmpegContentList c = _parent->selected_ffmpeg ();
 433         if (c.size() != 1) {
 434                 return;
 435         }
 436
 437         FilterDialog* d = new FilterDialog (this, c.front()->filters());
 438         d->ActiveChanged.connect (bind (&FFmpegContent::set_filters, c.front(), _1));
 439         d->ShowModal ();
 440         d->Destroy ();
 441 }
 442
 443 void
 444 VideoPanel::setup_description ()
 445 {
 446         ContentList vc = _parent->selected_video ();
 447         if (vc.empty ()) {
 448                 checked_set (_description, wxT (""));
 449                 return;
 450         } else if (vc.size() > 1) {
 451                 checked_set (_description, _("Multiple content selected"));
 452                 return;
 453         }
 454
 455         string d = vc.front()->video->processing_description (_parent->film());
 456         size_t lines = count (d.begin(), d.end(), '\n');
 457
 458         for (int i = lines; i < 6; ++i) {
 459                 d += "\n ";
 460         }
 461
 462         checked_set (_description, d);
 463         _sizer->Layout ();
 464 }
 465
 466 void
 467 VideoPanel::colour_conversion_changed ()
 468 {
 469         ContentList vc = _parent->selected_video ();
 470
 471         int const s = _colour_conversion->GetSelection ();
 472         vector<PresetColourConversion> all = PresetColourConversion::all ();
 473
 474         if (s == int(all.size() + 1)) {
 475                 edit_colour_conversion_clicked ();
 476         } else {
 477                 BOOST_FOREACH (shared_ptr<Content> i, _parent->selected_video()) {
 478                         if (s == 0) {
 479                                 i->video->unset_colour_conversion ();
 480                         } else if (s != int(all.size() + 2)) {
 481                                 i->video->set_colour_conversion (all[s - 1].conversion);
 482                         }
 483                 }
 484         }
 485 }
 486
 487 void
 488 VideoPanel::edit_colour_conversion_clicked ()
 489 {
 490         ContentList vc = _parent->selected_video ();
 491
 492         ContentColourConversionDialog* d = new ContentColourConversionDialog (this, vc.front()->video->yuv ());
 493         d->set (vc.front()->video->colour_conversion().get_value_or (PresetColourConversion::all().front().conversion));
 494         if (d->ShowModal() == wxID_OK) {
 495                 BOOST_FOREACH (shared_ptr<Content> i, vc) {
 496                         i->video->set_colour_conversion (d->get ());
 497                 }
 498         } else {
 499                 /* Reset the colour conversion choice */
 500                 film_content_changed (VideoContentProperty::COLOUR_CONVERSION);
 501         }
 502         d->Destroy ();
 503 }
 504
 505 void
 506 VideoPanel::content_selection_changed ()
 507 {
 508         ContentList video_sel = _parent->selected_video ();
 509
 510         _frame_type->set_content (video_sel);
 511         _left_crop->set_content (video_sel);
 512         _right_crop->set_content (video_sel);
 513         _top_crop->set_content (video_sel);
 514         _bottom_crop->set_content (video_sel);
 515         _scale->set_content (video_sel);
 516
 517         film_content_changed (ContentProperty::VIDEO_FRAME_RATE);
 518         film_content_changed (VideoContentProperty::CROP);
 519         film_content_changed (VideoContentProperty::COLOUR_CONVERSION);
 520         film_content_changed (VideoContentProperty::FADE_IN);
 521         film_content_changed (VideoContentProperty::FADE_OUT);
 522         film_content_changed (FFmpegContentProperty::FILTERS);
 523         film_content_changed (DCPContentProperty::REFERENCE_VIDEO);
 524
 525         setup_sensitivity ();
 526 }
 527
 528 void
 529 VideoPanel::setup_sensitivity ()
 530 {
 531         ContentList sel = _parent->selected ();
 532
 533         shared_ptr<DCPContent> dcp;
 534         if (sel.size() == 1) {
 535                 dcp = dynamic_pointer_cast<DCPContent> (sel.front ());
 536         }
 537
 538         string why_not;
 539         bool const can_reference = dcp && dcp->can_reference_video (_parent->film(), why_not);
 540         setup_refer_button (_reference, _reference_note, dcp, can_reference, why_not);
 541
 542         if (_reference->GetValue ()) {
 543                 _frame_type->wrapped()->Enable (false);
 544                 _left_crop->wrapped()->Enable (false);
 545                 _right_crop->wrapped()->Enable (false);
 546                 _top_crop->wrapped()->Enable (false);
 547                 _bottom_crop->wrapped()->Enable (false);
 548                 _fade_in->Enable (false);
 549                 _fade_out->Enable (false);
 550                 _scale->wrapped()->Enable (false);
 551                 _description->Enable (false);
 552                 _filters->Enable (false);
 553                 _filters_button->Enable (false);
 554                 _colour_conversion->Enable (false);
 555         } else {
 556                 ContentList video_sel = _parent->selected_video ();
 557                 FFmpegContentList ffmpeg_sel = _parent->selected_ffmpeg ();
 558                 bool const single = video_sel.size() == 1;
 559
 560                 _frame_type->wrapped()->Enable (true);
 561                 _left_crop->wrapped()->Enable (true);
 562                 _right_crop->wrapped()->Enable (true);
 563                 _top_crop->wrapped()->Enable (true);
 564                 _bottom_crop->wrapped()->Enable (true);
 565                 _fade_in->Enable (!video_sel.empty ());
 566                 _fade_out->Enable (!video_sel.empty ());
 567                 _scale->wrapped()->Enable (true);
 568                 _description->Enable (true);
 569                 _filters->Enable (true);
 570                 _filters_button->Enable (single && !ffmpeg_sel.empty ());
 571                 _colour_conversion->Enable (!video_sel.empty());
 572         }
 573
 574         ContentList vc = _parent->selected_video ();
 575         shared_ptr<Content> vcs;
 576         if (!vc.empty ()) {
 577                 vcs = vc.front ();
 578         }
 579
 580         if (vcs && vcs->video->colour_conversion ()) {
 581                 _edit_colour_conversion_button->Enable (!vcs->video->colour_conversion().get().preset());
 582         } else {
 583                 _edit_colour_conversion_button->Enable (false);
 584         }
 585 }
 586
 587 void
 588 VideoPanel::fade_in_changed ()
 589 {
 590         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected_video ()) {
 591                 double const vfr = i->active_video_frame_rate (_parent->film());
 592                 i->video->set_fade_in (_fade_in->get(vfr).frames_round(vfr));
 593         }
 594 }
 595
 596 void
 597 VideoPanel::fade_out_changed ()
 598 {
 599         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected_video ()) {
 600                 double const vfr = i->active_video_frame_rate (_parent->film());
 601                 i->video->set_fade_out (_fade_out->get(vfr).frames_round(vfr));
 602         }
 603 }
 604
 605 void
 606 VideoPanel::reference_clicked ()
 607 {
 608         ContentList c = _parent->selected ();
 609         if (c.size() != 1) {
 610                 return;
 611         }
 612
 613         shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent> (c.front ());
 614         if (!d) {
 615                 return;
 616         }
 617
 618         d->set_reference_video (_reference->GetValue ());
 619 }