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 #if BOOST_VERSION >= 106100
  57 using namespace boost::placeholders;
  58 #endif
  59
  60 static VideoContentScale
  61 index_to_scale (int n)
  62 {
  63         vector<VideoContentScale> scales = VideoContentScale::all ();
  64         DCPOMATIC_ASSERT (n >= 0);
  65         DCPOMATIC_ASSERT (n < int (scales.size ()));
  66         return scales[n];
  67 }
  68
  69 static int
  70 scale_to_index (VideoContentScale scale)
  71 {
  72         vector<VideoContentScale> scales = VideoContentScale::all ();
  73         for (size_t i = 0; i < scales.size(); ++i) {
  74                 if (scales[i] == scale) {
  75                         return i;
  76                 }
  77         }
  78
  79         DCPOMATIC_ASSERT (false);
  80 }
  81
  82 VideoPanel::VideoPanel (ContentPanel* p)
  83         : ContentSubPanel (p, _("Video"))
  84 {
  85         _reference = new CheckBox (this, _("Use this DCP's video as OV and make VF"));
  86         _reference_note = new StaticText (this, wxT(""));
  87         _reference_note->Wrap (200);
  88         wxFont font = _reference_note->GetFont();
  89         font.SetStyle(wxFONTSTYLE_ITALIC);
  90         font.SetPointSize(font.GetPointSize() - 1);
  91         _reference_note->SetFont(font);
  92
  93         _type_label = create_label (this, _("Type"), true);
  94         _frame_type = new ContentChoice<VideoContent, VideoFrameType> (
  95                 this,
  96                 new wxChoice (this, wxID_ANY),
  97                 VideoContentProperty::FRAME_TYPE,
  98                 &Content::video,
  99                 boost::mem_fn (&VideoContent::frame_type),
 100                 boost::mem_fn (&VideoContent::set_frame_type),
 101                 &caster<int, VideoFrameType>,
 102                 &caster<VideoFrameType, int>
 103                 );
 104
 105         _crop_label = create_label (this, _("Crop"), true);
 106
 107 #ifdef __WXGTK3__
 108         int const crop_width = 128;
 109 #else
 110         int const crop_width = 56;
 111 #endif
 112
 113         _left_crop_label = create_label (this, _("Left"), true);
 114         _left_crop = new ContentSpinCtrl<VideoContent> (
 115                 this,
 116                 new wxSpinCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize (crop_width, -1)),
 117                 VideoContentProperty::CROP,
 118                 &Content::video,
 119                 boost::mem_fn (&VideoContent::left_crop),
 120                 boost::mem_fn (&VideoContent::set_left_crop)
 121                 );
 122
 123         _right_crop_label = create_label (this, _("Right"), true);
 124         _right_crop = new ContentSpinCtrl<VideoContent> (
 125                 this,
 126                 new wxSpinCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize (crop_width, -1)),
 127                 VideoContentProperty::CROP,
 128                 &Content::video,
 129                 boost::mem_fn (&VideoContent::right_crop),
 130                 boost::mem_fn (&VideoContent::set_right_crop)
 131                 );
 132
 133         _top_crop_label = create_label (this, _("Top"), true);
 134         _top_crop = new ContentSpinCtrl<VideoContent> (
 135                 this,
 136                 new wxSpinCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize (crop_width, -1)),
 137                 VideoContentProperty::CROP,
 138                 &Content::video,
 139                 boost::mem_fn (&VideoContent::top_crop),
 140                 boost::mem_fn (&VideoContent::set_top_crop)
 141                 );
 142
 143         _bottom_crop_label = create_label (this, _("Bottom"), true);
 144         _bottom_crop = new ContentSpinCtrl<VideoContent> (
 145                 this,
 146                 new wxSpinCtrl (this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize (crop_width, -1)),
 147                 VideoContentProperty::CROP,
 148                 &Content::video,
 149                 boost::mem_fn (&VideoContent::bottom_crop),
 150                 boost::mem_fn (&VideoContent::set_bottom_crop)
 151                 );
 152
 153         _fade_in_label = create_label (this, _("Fade in"), true);
 154         _fade_in = new Timecode<ContentTime> (this);
 155
 156         _fade_out_label = create_label (this, _("Fade out"), true);
 157         _fade_out = new Timecode<ContentTime> (this);
 158
 159         _scale_to_label = create_label (this, _("Scale to"), true);
 160         _scale = new ContentChoice<VideoContent, VideoContentScale> (
 161                 this,
 162                 new wxChoice (this, wxID_ANY),
 163                 VideoContentProperty::SCALE,
 164                 &Content::video,
 165                 boost::mem_fn (&VideoContent::scale),
 166                 boost::mem_fn (&VideoContent::set_scale),
 167                 &index_to_scale,
 168                 &scale_to_index
 169                 );
 170
 171         wxClientDC dc (this);
 172         wxSize size = dc.GetTextExtent (wxT ("A quite long name"));
 173 #ifdef __WXGTK3__
 174         size.SetWidth (size.GetWidth() + 64);
 175 #endif
 176         size.SetHeight (-1);
 177
 178         _filters_label = create_label (this, _("Filters"), true);
 179         _filters = new StaticText (this, _("None"), wxDefaultPosition, size);
 180         _filters_button = new Button (this, _("Edit..."));
 181
 182         _colour_conversion_label = create_label (this, _("Colour conversion"), true);
 183         _colour_conversion = new wxChoice (this, wxID_ANY, wxDefaultPosition, size);
 184         _colour_conversion->Append (_("None"));
 185         BOOST_FOREACH (PresetColourConversion const & i, PresetColourConversion::all()) {
 186                 _colour_conversion->Append (std_to_wx (i.name));
 187         }
 188
 189         /// TRANSLATORS: translate the word "Custom" here; do not include the "Colour|" prefix
 190         _colour_conversion->Append (S_("Colour|Custom"));
 191         _edit_colour_conversion_button = new Button (this, _("Edit..."));
 192
 193         _description = new StaticText (this, wxT ("\n \n \n \n \n"), wxDefaultPosition, wxDefaultSize);
 194         _description->SetFont(font);
 195
 196         _left_crop->wrapped()->SetRange (0, 4096);
 197         _top_crop->wrapped()->SetRange (0, 4096);
 198         _right_crop->wrapped()->SetRange (0, 4096);
 199         _bottom_crop->wrapped()->SetRange (0, 4096);
 200
 201         _scale->wrapped()->Clear ();
 202         BOOST_FOREACH (VideoContentScale const & i, VideoContentScale::all ()) {
 203                 _scale->wrapped()->Append (std_to_wx (i.name ()));
 204         }
 205
 206         _frame_type->wrapped()->Append (_("2D"));
 207         _frame_type->wrapped()->Append (_("3D"));
 208         _frame_type->wrapped()->Append (_("3D left/right"));
 209         _frame_type->wrapped()->Append (_("3D top/bottom"));
 210         _frame_type->wrapped()->Append (_("3D alternate"));
 211         _frame_type->wrapped()->Append (_("3D left only"));
 212         _frame_type->wrapped()->Append (_("3D right only"));
 213
 214         content_selection_changed ();
 215
 216         _fade_in->Changed.connect (boost::bind (&VideoPanel::fade_in_changed, this));
 217         _fade_out->Changed.connect (boost::bind (&VideoPanel::fade_out_changed, this));
 218
 219         _reference->Bind                     (wxEVT_CHECKBOX, boost::bind (&VideoPanel::reference_clicked, this));
 220         _filters_button->Bind                (wxEVT_BUTTON,   boost::bind (&VideoPanel::edit_filters_clicked, this));
 221         _colour_conversion->Bind             (wxEVT_CHOICE,   boost::bind (&VideoPanel::colour_conversion_changed, this));
 222         _edit_colour_conversion_button->Bind (wxEVT_BUTTON,   boost::bind (&VideoPanel::edit_colour_conversion_clicked, this));
 223
 224         add_to_grid ();
 225 }
 226
 227 void
 228 VideoPanel::add_to_grid ()
 229 {
 230         bool const full = Config::instance()->interface_complexity() == Config::INTERFACE_FULL;
 231
 232         int r = 0;
 233
 234         _reference->Show (full);
 235         _reference_note->Show (full);
 236
 237         if (full) {
 238                 wxBoxSizer* reference_sizer = new wxBoxSizer (wxVERTICAL);
 239                 reference_sizer->Add (_reference, 0);
 240                 reference_sizer->Add (_reference_note, 0);
 241                 _grid->Add (reference_sizer, wxGBPosition(r, 0), wxGBSpan(1, 3));
 242                 ++r;
 243         }
 244
 245         add_label_to_sizer (_grid, _type_label, true, wxGBPosition(r, 0));
 246         _frame_type->add (_grid, wxGBPosition(r, 1), wxGBSpan(1, 2));
 247         ++r;
 248
 249         int cr = 0;
 250         wxGridBagSizer* crop = new wxGridBagSizer (DCPOMATIC_SIZER_X_GAP, DCPOMATIC_SIZER_Y_GAP);
 251         add_label_to_sizer (crop, _left_crop_label, true, wxGBPosition (cr, 0));
 252         _left_crop->add (crop, wxGBPosition (cr, 1));
 253 #ifdef __WXGTK3__
 254         ++cr;
 255         add_label_to_sizer (crop, _right_crop_label, true, wxGBPosition (cr, 0));
 256         _right_crop->add (crop, wxGBPosition (cr, 1));
 257 #else
 258         add_label_to_sizer (crop, _right_crop_label, true, wxGBPosition (cr, 2));
 259         _right_crop->add (crop, wxGBPosition (cr, 3));
 260 #endif
 261         ++cr;
 262         add_label_to_sizer (crop, _top_crop_label, true, wxGBPosition (cr, 0));
 263         _top_crop->add (crop, wxGBPosition (cr, 1));
 264 #ifdef __WXGTK3__
 265         ++cr;
 266         add_label_to_sizer (crop, _bottom_crop_label, true, wxGBPosition (cr, 0));
 267         _bottom_crop->add (crop, wxGBPosition (cr, 1));
 268 #else
 269         add_label_to_sizer (crop, _bottom_crop_label, true, wxGBPosition (cr, 2));
 270         _bottom_crop->add (crop, wxGBPosition (cr, 3));
 271 #endif
 272         add_label_to_sizer (_grid, _crop_label, true, wxGBPosition(r, 0));
 273         _grid->Add (crop, wxGBPosition(r, 1));
 274         ++r;
 275
 276         _scale_to_label->Show (full);
 277         _scale->show (full);
 278         _filters_label->Show (full);
 279         _filters->Show (full);
 280         _filters_button->Show (full);
 281         _colour_conversion_label->Show (full);
 282         _colour_conversion->Show (full);
 283         _edit_colour_conversion_button->Show (full);
 284
 285         add_label_to_sizer (_grid, _fade_in_label, true, wxGBPosition (r, 0));
 286         _grid->Add (_fade_in, wxGBPosition (r, 1), wxGBSpan (1, 3));
 287         ++r;
 288
 289         add_label_to_sizer (_grid, _fade_out_label, true, wxGBPosition (r, 0));
 290         _grid->Add (_fade_out, wxGBPosition (r, 1), wxGBSpan (1, 3));
 291         ++r;
 292
 293         if (full) {
 294                 add_label_to_sizer (_grid, _scale_to_label, true, wxGBPosition (r, 0));
 295                 _scale->add (_grid, wxGBPosition (r, 1), wxGBSpan (1, 2));
 296                 ++r;
 297
 298                 add_label_to_sizer (_grid, _filters_label, true, wxGBPosition (r, 0));
 299                 {
 300                         wxSizer* s = new wxBoxSizer (wxHORIZONTAL);
 301                         s->Add (_filters, 1, wxALIGN_CENTER_VERTICAL | wxTOP | wxBOTTOM | wxRIGHT, 6);
 302                         s->Add (_filters_button, 0, wxALIGN_CENTER_VERTICAL);
 303                         _grid->Add (s, wxGBPosition (r, 1), wxDefaultSpan, wxALIGN_CENTER_VERTICAL);
 304                 }
 305                 ++r;
 306
 307                 add_label_to_sizer (_grid, _colour_conversion_label, true, wxGBPosition(r, 0));
 308                 {
 309                         wxSizer* s = new wxBoxSizer (wxHORIZONTAL);
 310                         s->Add (_colour_conversion, 1, wxALIGN_CENTER_VERTICAL | wxTOP | wxBOTTOM | wxRIGHT, 6);
 311                         s->Add (_edit_colour_conversion_button, 0, wxALIGN_CENTER_VERTICAL);
 312                         _grid->Add (s, wxGBPosition (r, 1), wxDefaultSpan, wxALIGN_CENTER_VERTICAL);
 313                 }
 314                 ++r;
 315         }
 316
 317         _grid->Add (_description, wxGBPosition (r, 0), wxGBSpan (1, 4), wxEXPAND | wxALIGN_CENTER_VERTICAL, 6);
 318         ++r;
 319 }
 320
 321
 322 void
 323 VideoPanel::film_changed (Film::Property property)
 324 {
 325         switch (property) {
 326         case Film::VIDEO_FRAME_RATE:
 327         case Film::CONTAINER:
 328         case Film::RESOLUTION:
 329                 setup_description ();
 330                 setup_sensitivity ();
 331                 break;
 332         case Film::REEL_TYPE:
 333         case Film::INTEROP:
 334                 setup_sensitivity ();
 335                 break;
 336         default:
 337                 break;
 338         }
 339 }
 340
 341 std::size_t
 342 hash_value (boost::optional<ColourConversion> const & c)
 343 {
 344         boost::hash<string> hasher;
 345         if (!c) {
 346                 return hasher ("none");
 347         }
 348         return hasher (c->identifier());
 349 }
 350
 351
 352 void
 353 VideoPanel::film_content_changed (int property)
 354 {
 355         ContentList vc = _parent->selected_video ();
 356         shared_ptr<Content> vcs;
 357         shared_ptr<FFmpegContent> fcs;
 358         if (!vc.empty ()) {
 359                 vcs = vc.front ();
 360                 fcs = dynamic_pointer_cast<FFmpegContent> (vcs);
 361         }
 362
 363         if (property == ContentProperty::VIDEO_FRAME_RATE ||
 364             property == VideoContentProperty::FRAME_TYPE ||
 365             property == VideoContentProperty::CROP ||
 366             property == VideoContentProperty::SCALE) {
 367                 setup_description ();
 368         } else if (property == VideoContentProperty::COLOUR_CONVERSION) {
 369                 boost::unordered_set<optional<ColourConversion> > check;
 370                 BOOST_FOREACH (shared_ptr<const Content> i, vc) {
 371                         check.insert (i->video->colour_conversion());
 372                 }
 373
 374                 /* Remove any "Many" entry that we might have added previously.  There should
 375                  * be entries for each preset plus one for "None" and one for "Custom".
 376                  */
 377                 vector<PresetColourConversion> cc = PresetColourConversion::all ();
 378                 if (_colour_conversion->GetCount() > cc.size() + 2) {
 379                         _colour_conversion->Delete (_colour_conversion->GetCount() - 1);
 380                 }
 381
 382                 if (check.size() == 1) {
 383                         if (vcs && vcs->video->colour_conversion ()) {
 384                                 optional<size_t> preset = vcs->video->colour_conversion().get().preset ();
 385                                 if (preset) {
 386                                         checked_set (_colour_conversion, preset.get() + 1);
 387                                 } else {
 388                                         checked_set (_colour_conversion, cc.size() + 1);
 389                                 }
 390                         } else {
 391                                 checked_set (_colour_conversion, 0);
 392                         }
 393                 } else if (check.size() > 1) {
 394                         /* Add a "many" entry and select it as an indication that multiple different
 395                          * colour conversions are present in the selection.
 396                          */
 397                         _colour_conversion->Append (_("Many"));
 398                         checked_set (_colour_conversion, _colour_conversion->GetCount() - 1);
 399                 }
 400
 401                 setup_sensitivity ();
 402
 403         } else if (property == FFmpegContentProperty::FILTERS) {
 404                 if (fcs) {
 405                         string p = Filter::ffmpeg_string (fcs->filters ());
 406                         if (p.empty ()) {
 407                                 checked_set (_filters, _("None"));
 408                         } else {
 409                                 if (p.length() > 25) {
 410                                         p = p.substr (0, 25) + "...";
 411                                 }
 412                                 checked_set (_filters, p);
 413                         }
 414                 }
 415         } else if (property == VideoContentProperty::FADE_IN) {
 416                 set<Frame> check;
 417                 BOOST_FOREACH (shared_ptr<const Content> i, vc) {
 418                         check.insert (i->video->fade_in ());
 419                 }
 420
 421                 if (check.size() == 1) {
 422                         _fade_in->set (
 423                                 ContentTime::from_frames (vc.front()->video->fade_in(), vc.front()->active_video_frame_rate(_parent->film())),
 424                                 vc.front()->active_video_frame_rate(_parent->film())
 425                                 );
 426                 } else {
 427                         _fade_in->clear ();
 428                 }
 429         } else if (property == VideoContentProperty::FADE_OUT) {
 430                 set<Frame> check;
 431                 BOOST_FOREACH (shared_ptr<const Content> i, vc) {
 432                         check.insert (i->video->fade_out ());
 433                 }
 434
 435                 if (check.size() == 1) {
 436                         _fade_out->set (
 437                                 ContentTime::from_frames (vc.front()->video->fade_out(), vc.front()->active_video_frame_rate(_parent->film())),
 438                                 vc.front()->active_video_frame_rate(_parent->film())
 439                                 );
 440                 } else {
 441                         _fade_out->clear ();
 442                 }
 443         } else if (property == DCPContentProperty::REFERENCE_VIDEO) {
 444                 if (vc.size() == 1) {
 445                         shared_ptr<DCPContent> dcp = dynamic_pointer_cast<DCPContent> (vc.front ());
 446                         checked_set (_reference, dcp ? dcp->reference_video () : false);
 447                 } else {
 448                         checked_set (_reference, false);
 449                 }
 450
 451                 setup_sensitivity ();
 452         }
 453 }
 454
 455 /** Called when the `Edit filters' button has been clicked */
 456 void
 457 VideoPanel::edit_filters_clicked ()
 458 {
 459         FFmpegContentList c = _parent->selected_ffmpeg ();
 460         if (c.size() != 1) {
 461                 return;
 462         }
 463
 464         FilterDialog* d = new FilterDialog (this, c.front()->filters());
 465         d->ActiveChanged.connect (bind (&FFmpegContent::set_filters, c.front(), _1));
 466         d->ShowModal ();
 467         d->Destroy ();
 468 }
 469
 470 void
 471 VideoPanel::setup_description ()
 472 {
 473         ContentList vc = _parent->selected_video ();
 474         if (vc.empty ()) {
 475                 checked_set (_description, wxT (""));
 476                 return;
 477         } else if (vc.size() > 1) {
 478                 checked_set (_description, _("Multiple content selected"));
 479                 return;
 480         }
 481
 482         string d = vc.front()->video->processing_description (_parent->film());
 483         size_t lines = count (d.begin(), d.end(), '\n');
 484
 485         for (int i = lines; i < 6; ++i) {
 486                 d += "\n ";
 487         }
 488
 489         checked_set (_description, d);
 490         _sizer->Layout ();
 491 }
 492
 493 void
 494 VideoPanel::colour_conversion_changed ()
 495 {
 496         ContentList vc = _parent->selected_video ();
 497
 498         int const s = _colour_conversion->GetSelection ();
 499         vector<PresetColourConversion> all = PresetColourConversion::all ();
 500
 501         if (s == int(all.size() + 1)) {
 502                 edit_colour_conversion_clicked ();
 503         } else {
 504                 BOOST_FOREACH (shared_ptr<Content> i, _parent->selected_video()) {
 505                         if (s == 0) {
 506                                 i->video->unset_colour_conversion ();
 507                         } else if (s != int(all.size() + 2)) {
 508                                 i->video->set_colour_conversion (all[s - 1].conversion);
 509                         }
 510                 }
 511         }
 512 }
 513
 514 void
 515 VideoPanel::edit_colour_conversion_clicked ()
 516 {
 517         ContentList vc = _parent->selected_video ();
 518
 519         ContentColourConversionDialog* d = new ContentColourConversionDialog (this, vc.front()->video->yuv ());
 520         d->set (vc.front()->video->colour_conversion().get_value_or (PresetColourConversion::all().front().conversion));
 521         if (d->ShowModal() == wxID_OK) {
 522                 BOOST_FOREACH (shared_ptr<Content> i, vc) {
 523                         i->video->set_colour_conversion (d->get ());
 524                 }
 525         } else {
 526                 /* Reset the colour conversion choice */
 527                 film_content_changed (VideoContentProperty::COLOUR_CONVERSION);
 528         }
 529         d->Destroy ();
 530 }
 531
 532 void
 533 VideoPanel::content_selection_changed ()
 534 {
 535         ContentList video_sel = _parent->selected_video ();
 536
 537         _frame_type->set_content (video_sel);
 538         _left_crop->set_content (video_sel);
 539         _right_crop->set_content (video_sel);
 540         _top_crop->set_content (video_sel);
 541         _bottom_crop->set_content (video_sel);
 542         _scale->set_content (video_sel);
 543
 544         film_content_changed (ContentProperty::VIDEO_FRAME_RATE);
 545         film_content_changed (VideoContentProperty::CROP);
 546         film_content_changed (VideoContentProperty::COLOUR_CONVERSION);
 547         film_content_changed (VideoContentProperty::FADE_IN);
 548         film_content_changed (VideoContentProperty::FADE_OUT);
 549         film_content_changed (FFmpegContentProperty::FILTERS);
 550         film_content_changed (DCPContentProperty::REFERENCE_VIDEO);
 551
 552         setup_sensitivity ();
 553 }
 554
 555 void
 556 VideoPanel::setup_sensitivity ()
 557 {
 558         ContentList sel = _parent->selected ();
 559
 560         shared_ptr<DCPContent> dcp;
 561         if (sel.size() == 1) {
 562                 dcp = dynamic_pointer_cast<DCPContent> (sel.front ());
 563         }
 564
 565         string why_not;
 566         bool const can_reference = dcp && dcp->can_reference_video (_parent->film(), why_not);
 567         setup_refer_button (_reference, _reference_note, dcp, can_reference, why_not);
 568
 569         if (_reference->GetValue ()) {
 570                 _frame_type->wrapped()->Enable (false);
 571                 _left_crop->wrapped()->Enable (false);
 572                 _right_crop->wrapped()->Enable (false);
 573                 _top_crop->wrapped()->Enable (false);
 574                 _bottom_crop->wrapped()->Enable (false);
 575                 _fade_in->Enable (false);
 576                 _fade_out->Enable (false);
 577                 _scale->wrapped()->Enable (false);
 578                 _description->Enable (false);
 579                 _filters->Enable (false);
 580                 _filters_button->Enable (false);
 581                 _colour_conversion->Enable (false);
 582         } else {
 583                 ContentList video_sel = _parent->selected_video ();
 584                 FFmpegContentList ffmpeg_sel = _parent->selected_ffmpeg ();
 585                 bool const single = video_sel.size() == 1;
 586
 587                 _frame_type->wrapped()->Enable (true);
 588                 _left_crop->wrapped()->Enable (true);
 589                 _right_crop->wrapped()->Enable (true);
 590                 _top_crop->wrapped()->Enable (true);
 591                 _bottom_crop->wrapped()->Enable (true);
 592                 _fade_in->Enable (!video_sel.empty ());
 593                 _fade_out->Enable (!video_sel.empty ());
 594                 _scale->wrapped()->Enable (true);
 595                 _description->Enable (true);
 596                 _filters->Enable (true);
 597                 _filters_button->Enable (single && !ffmpeg_sel.empty ());
 598                 _colour_conversion->Enable (!video_sel.empty());
 599         }
 600
 601         ContentList vc = _parent->selected_video ();
 602         shared_ptr<Content> vcs;
 603         if (!vc.empty ()) {
 604                 vcs = vc.front ();
 605         }
 606
 607         if (vcs && vcs->video->colour_conversion ()) {
 608                 _edit_colour_conversion_button->Enable (!vcs->video->colour_conversion().get().preset());
 609         } else {
 610                 _edit_colour_conversion_button->Enable (false);
 611         }
 612 }
 613
 614 void
 615 VideoPanel::fade_in_changed ()
 616 {
 617         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected_video ()) {
 618                 double const vfr = i->active_video_frame_rate (_parent->film());
 619                 i->video->set_fade_in (_fade_in->get(vfr).frames_round(vfr));
 620         }
 621 }
 622
 623 void
 624 VideoPanel::fade_out_changed ()
 625 {
 626         BOOST_FOREACH (shared_ptr<Content> i, _parent->selected_video ()) {
 627                 double const vfr = i->active_video_frame_rate (_parent->film());
 628                 i->video->set_fade_out (_fade_out->get(vfr).frames_round(vfr));
 629         }
 630 }
 631
 632 void
 633 VideoPanel::reference_clicked ()
 634 {
 635         ContentList c = _parent->selected ();
 636         if (c.size() != 1) {
 637                 return;
 638         }
 639
 640         shared_ptr<DCPContent> d = dynamic_pointer_cast<DCPContent> (c.front ());
 641         if (!d) {
 642                 return;
 643         }
 644
 645         d->set_reference_video (_reference->GetValue ());
 646 }