*/
/** @file src/film_viewer.cc
- * @brief A wx widget to view `thumbnails' of a Film.
+ * @brief A wx widget to view a preview of a Film.
*/
#include <iostream>
#include <iomanip>
+#include <wx/tglbtn.h>
#include "lib/film.h"
-#include "lib/format.h"
+#include "lib/ratio.h"
#include "lib/util.h"
-#include "lib/thumbs_job.h"
#include "lib/job_manager.h"
-#include "lib/film_state.h"
-#include "lib/options.h"
-#include "lib/subtitle.h"
+#include "lib/image.h"
+#include "lib/scaler.h"
+#include "lib/exceptions.h"
+#include "lib/examine_content_job.h"
+#include "lib/filter.h"
+#include "lib/player.h"
+#include "lib/video_content.h"
+#include "lib/ffmpeg_content.h"
+#include "lib/imagemagick_content.h"
#include "film_viewer.h"
#include "wx_util.h"
+#include "video_decoder.h"
+
+using std::string;
+using std::pair;
+using std::min;
+using std::max;
+using std::cout;
+using std::list;
+using std::make_pair;
+using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
+using boost::weak_ptr;
+using libdcp::Size;
+
+FilmViewer::FilmViewer (shared_ptr<Film> f, wxWindow* p)
+ : wxPanel (p)
+ , _panel (new wxPanel (this))
+ , _slider (new wxSlider (this, wxID_ANY, 0, 0, 4096))
+ , _back_button (new wxButton (this, wxID_ANY, wxT("<")))
+ , _forward_button (new wxButton (this, wxID_ANY, wxT(">")))
+ , _frame_number (new wxStaticText (this, wxID_ANY, wxT("")))
+ , _timecode (new wxStaticText (this, wxID_ANY, wxT("")))
+ , _play_button (new wxToggleButton (this, wxID_ANY, _("Play")))
+ , _got_frame (false)
+{
+#ifndef __WXOSX__
+ _panel->SetDoubleBuffered (true);
+#endif
+
+ _panel->SetBackgroundStyle (wxBG_STYLE_PAINT);
+
+ _v_sizer = new wxBoxSizer (wxVERTICAL);
+ SetSizer (_v_sizer);
-using namespace std;
-using namespace boost;
+ _v_sizer->Add (_panel, 1, wxEXPAND);
-class ThumbPanel : public wxPanel
-{
-public:
- ThumbPanel (wxPanel* parent, Film* film)
- : wxPanel (parent)
- , _film (film)
- , _frame_rebuild_needed (false)
- , _composition_needed (false)
- {}
-
- /** Handle a paint event */
- void paint_event (wxPaintEvent& ev)
- {
- if (!_film || _film->thumbs().size() == 0) {
- wxPaintDC dc (this);
- return;
- }
+ wxBoxSizer* h_sizer = new wxBoxSizer (wxHORIZONTAL);
- if (_frame_rebuild_needed) {
- _image.reset (new wxImage (std_to_wx (_film->thumb_file (_index))));
+ wxBoxSizer* time_sizer = new wxBoxSizer (wxVERTICAL);
+ time_sizer->Add (_frame_number, 0, wxEXPAND);
+ time_sizer->Add (_timecode, 0, wxEXPAND);
- _subtitle.reset ();
- pair<Position, string> s = _film->thumb_subtitle (_index);
- if (!s.second.empty ()) {
- _subtitle.reset (new SubtitleView (s.first, std_to_wx (s.second)));
- }
+ h_sizer->Add (_back_button, 0, wxALL, 2);
+ h_sizer->Add (time_sizer, 0, wxEXPAND);
+ h_sizer->Add (_forward_button, 0, wxALL, 2);
+ h_sizer->Add (_play_button, 0, wxEXPAND);
+ h_sizer->Add (_slider, 1, wxEXPAND);
- _frame_rebuild_needed = false;
- compose ();
- }
+ _v_sizer->Add (h_sizer, 0, wxEXPAND | wxALL, 6);
- if (_composition_needed) {
- compose ();
- }
+ _frame_number->SetMinSize (wxSize (84, -1));
+ _back_button->SetMinSize (wxSize (32, -1));
+ _forward_button->SetMinSize (wxSize (32, -1));
- wxPaintDC dc (this);
- if (_bitmap) {
- dc.DrawBitmap (*_bitmap, 0, 0, false);
- }
+ _panel->Connect (wxID_ANY, wxEVT_PAINT, wxPaintEventHandler (FilmViewer::paint_panel), 0, this);
+ _panel->Connect (wxID_ANY, wxEVT_SIZE, wxSizeEventHandler (FilmViewer::panel_sized), 0, this);
+ _slider->Connect (wxID_ANY, wxEVT_SCROLL_THUMBTRACK, wxScrollEventHandler (FilmViewer::slider_moved), 0, this);
+ _slider->Connect (wxID_ANY, wxEVT_SCROLL_PAGEUP, wxScrollEventHandler (FilmViewer::slider_moved), 0, this);
+ _slider->Connect (wxID_ANY, wxEVT_SCROLL_PAGEDOWN, wxScrollEventHandler (FilmViewer::slider_moved), 0, this);
+ _play_button->Connect (wxID_ANY, wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler (FilmViewer::play_clicked), 0, this);
+ _timer.Connect (wxID_ANY, wxEVT_TIMER, wxTimerEventHandler (FilmViewer::timer), 0, this);
+ _back_button->Connect (wxID_ANY, wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler (FilmViewer::back_clicked), 0, this);
+ _forward_button->Connect (wxID_ANY, wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler (FilmViewer::forward_clicked), 0, this);
- if (_film->with_subtitles() && _subtitle) {
- dc.DrawBitmap (*_subtitle->bitmap, _subtitle->transformed_area.x, _subtitle->transformed_area.y, true);
- }
- }
+ set_film (f);
- /** Handle a size event */
- void size_event (wxSizeEvent &)
- {
- if (!_image) {
- return;
- }
+ JobManager::instance()->ActiveJobsChanged.connect (
+ bind (&FilmViewer::active_jobs_changed, this, _1)
+ );
+}
- recompose ();
+void
+FilmViewer::set_film (shared_ptr<Film> f)
+{
+ if (_film == f) {
+ return;
}
- /** @param n Thumbnail index */
- void set (int n)
- {
- _index = n;
- _frame_rebuild_needed = true;
- Refresh ();
- }
+ _film = f;
- void set_film (Film* f)
- {
- _film = f;
- if (!_film) {
- clear ();
- _frame_rebuild_needed = true;
- Refresh ();
- } else {
- _frame_rebuild_needed = true;
- Refresh ();
- }
+ _frame.reset ();
+ _queue.clear ();
+
+ if (!_film) {
+ return;
}
- /** Clear our thumbnail image */
- void clear ()
- {
- _bitmap.reset ();
- _image.reset ();
- _subtitle.reset ();
+ _player = f->make_player ();
+ _player->disable_audio ();
+ _player->Video.connect (boost::bind (&FilmViewer::process_video, this, _1, _3));
+ _player->Changed.connect (boost::bind (&FilmViewer::player_changed, this, _1));
+
+ calculate_sizes ();
+ fetch_current_frame_again ();
+}
+
+void
+FilmViewer::fetch_current_frame_again ()
+{
+ if (!_player) {
+ return;
}
- void recompose ()
- {
- _composition_needed = true;
- Refresh ();
+ /* Player::video_position is the time after the last frame that we received.
+ We want to see it again, so seek back one frame.
+ */
+
+ Time p = _player->video_position() - _film->video_frames_to_time (1);
+ if (p < 0) {
+ p = 0;
}
- DECLARE_EVENT_TABLE ();
+ _player->seek (p, true);
+ fetch_next_frame ();
+}
-private:
+void
+FilmViewer::timer (wxTimerEvent &)
+{
+ if (!_player) {
+ return;
+ }
+
+ fetch_next_frame ();
- void compose ()
- {
- _composition_needed = false;
-
- if (!_film || !_image) {
- return;
+ if (_film->length()) {
+ int const new_slider_position = 4096 * _player->video_position() / _film->length();
+ if (new_slider_position != _slider->GetValue()) {
+ _slider->SetValue (new_slider_position);
}
+ }
+}
- /* Size of the view */
- int vw, vh;
- GetSize (&vw, &vh);
-
- Crop const fc = _film->crop ();
-
- /* Cropped rectangle */
- Rect cropped_area (
- fc.left,
- fc.top,
- _image->GetWidth() - (fc.left + fc.right),
- _image->GetHeight() - (fc.top + fc.bottom)
- );
-
- /* Target ratio */
- float const target = _film->format() ? _film->format()->ratio_as_float (_film) : 1.78;
-
- _transformed_image = _image->GetSubImage (wxRect (cropped_area.x, cropped_area.y, cropped_area.width, cropped_area.height));
-
- float x_scale = 1;
- float y_scale = 1;
-
- if ((float (vw) / vh) > target) {
- /* view is longer (horizontally) than the ratio; fit height */
- _transformed_image.Rescale (vh * target, vh, wxIMAGE_QUALITY_HIGH);
- x_scale = vh * target / cropped_area.width;
- y_scale = float (vh) / cropped_area.height;
- } else {
- /* view is shorter (horizontally) than the ratio; fit width */
- _transformed_image.Rescale (vw, vw / target, wxIMAGE_QUALITY_HIGH);
- x_scale = float (vw) / cropped_area.width;
- y_scale = (vw / target) / cropped_area.height;
- }
- _bitmap.reset (new wxBitmap (_transformed_image));
+void
+FilmViewer::paint_panel (wxPaintEvent &)
+{
+ wxPaintDC dc (_panel);
+
+ if (!_frame || !_film || !_out_size.width || !_out_size.height) {
+ dc.Clear ();
+ return;
+ }
- if (_subtitle) {
+ shared_ptr<Image> packed_frame (new Image (_frame, false));
- _subtitle->transformed_area = subtitle_transformed_area (
- x_scale, y_scale, _subtitle->base_area, _film->subtitle_offset(), _film->subtitle_scale()
- );
+ wxImage frame (_out_size.width, _out_size.height, packed_frame->data()[0], true);
+ wxBitmap frame_bitmap (frame);
+ dc.DrawBitmap (frame_bitmap, 0, 0);
- _subtitle->transformed_image = _subtitle->base_image;
- _subtitle->transformed_image.Rescale (_subtitle->transformed_area.width, _subtitle->transformed_area.height, wxIMAGE_QUALITY_HIGH);
- _subtitle->transformed_area.x -= _film->crop().left;
- _subtitle->transformed_area.y -= _film->crop().top;
- _subtitle->bitmap.reset (new wxBitmap (_subtitle->transformed_image));
- }
+ if (_out_size.width < _panel_size.width) {
+ wxPen p (GetBackgroundColour ());
+ wxBrush b (GetBackgroundColour ());
+ dc.SetPen (p);
+ dc.SetBrush (b);
+ dc.DrawRectangle (_out_size.width, 0, _panel_size.width - _out_size.width, _panel_size.height);
}
- Film* _film;
- shared_ptr<wxImage> _image;
- wxImage _transformed_image;
- /** currently-displayed thumbnail index */
- int _index;
- shared_ptr<wxBitmap> _bitmap;
- bool _frame_rebuild_needed;
- bool _composition_needed;
-
- struct SubtitleView
- {
- SubtitleView (Position p, wxString const & i)
- : base_image (i)
- {
- base_area.x = p.x;
- base_area.y = p.y;
- base_area.width = base_image.GetWidth ();
- base_area.height = base_image.GetHeight ();
- }
+ if (_out_size.height < _panel_size.height) {
+ wxPen p (GetBackgroundColour ());
+ wxBrush b (GetBackgroundColour ());
+ dc.SetPen (p);
+ dc.SetBrush (b);
+ dc.DrawRectangle (0, _out_size.height, _panel_size.width, _panel_size.height - _out_size.height);
+ }
+}
- Rect base_area;
- Rect transformed_area;
- wxImage base_image;
- wxImage transformed_image;
- shared_ptr<wxBitmap> bitmap;
- };
- shared_ptr<SubtitleView> _subtitle;
-};
+void
+FilmViewer::slider_moved (wxScrollEvent &)
+{
+ if (_film && _player) {
+ _player->seek (_slider->GetValue() * _film->length() / 4096, false);
+ fetch_next_frame ();
+ }
+}
-BEGIN_EVENT_TABLE (ThumbPanel, wxPanel)
-EVT_PAINT (ThumbPanel::paint_event)
-EVT_SIZE (ThumbPanel::size_event)
-END_EVENT_TABLE ()
+void
+FilmViewer::panel_sized (wxSizeEvent& ev)
+{
+ _panel_size.width = ev.GetSize().GetWidth();
+ _panel_size.height = ev.GetSize().GetHeight();
+ calculate_sizes ();
+ fetch_current_frame_again ();
+}
-FilmViewer::FilmViewer (Film* f, wxWindow* p)
- : wxPanel (p)
- , _film (0)
+void
+FilmViewer::calculate_sizes ()
{
- _sizer = new wxBoxSizer (wxVERTICAL);
- SetSizer (_sizer);
+ if (!_film || !_player) {
+ return;
+ }
+
+ Ratio const * container = _film->container ();
- _thumb_panel = new ThumbPanel (this, f);
- _sizer->Add (_thumb_panel, 1, wxEXPAND);
+ float const panel_ratio = static_cast<float> (_panel_size.width) / _panel_size.height;
+ float const film_ratio = container ? container->ratio () : 1.78;
+
+ if (panel_ratio < film_ratio) {
+ /* panel is less widscreen than the film; clamp width */
+ _out_size.width = _panel_size.width;
+ _out_size.height = _out_size.width / film_ratio;
+ } else {
+ /* panel is more widescreen than the film; clamp height */
+ _out_size.height = _panel_size.height;
+ _out_size.width = _out_size.height * film_ratio;
+ }
- int const m = max ((size_t) 1, f ? f->thumbs().size() - 1 : 0);
- _slider = new wxSlider (this, wxID_ANY, 0, 0, m);
- _sizer->Add (_slider, 0, wxEXPAND | wxLEFT | wxRIGHT);
- set_thumbnail (0);
+ /* Catch silly values */
+ _out_size.width = max (64, _out_size.width);
+ _out_size.height = max (64, _out_size.height);
- _slider->Connect (wxID_ANY, wxEVT_COMMAND_SLIDER_UPDATED, wxCommandEventHandler (FilmViewer::slider_changed), 0, this);
+ _player->set_video_container_size (_out_size);
+}
- set_film (_film);
+void
+FilmViewer::play_clicked (wxCommandEvent &)
+{
+ check_play_state ();
}
void
-FilmViewer::set_thumbnail (int n)
+FilmViewer::check_play_state ()
{
- if (_film == 0 || int (_film->thumbs().size()) <= n) {
+ if (!_film || _film->dcp_video_frame_rate() == 0) {
return;
}
-
- _thumb_panel->set (n);
+
+ if (_play_button->GetValue()) {
+ _timer.Start (1000 / _film->dcp_video_frame_rate());
+ } else {
+ _timer.Stop ();
+ }
}
void
-FilmViewer::slider_changed (wxCommandEvent &)
+FilmViewer::process_video (shared_ptr<const Image> image, Time t)
{
- set_thumbnail (_slider->GetValue ());
+ if (_got_frame) {
+ /* This is an additional frame emitted by a single pass. Store it. */
+ _queue.push_front (make_pair (image, t));
+ return;
+ }
+
+ _frame = image;
+ _got_frame = true;
+
+ double const fps = _film->dcp_video_frame_rate ();
+ /* Count frame number from 1 ... not sure if this is the best idea */
+ _frame_number->SetLabel (wxString::Format (wxT("%d"), int (rint (t * fps / TIME_HZ)) + 1));
+
+ double w = static_cast<double>(t) / TIME_HZ;
+ int const h = (w / 3600);
+ w -= h * 3600;
+ int const m = (w / 60);
+ w -= m * 60;
+ int const s = floor (w);
+ w -= s;
+ int const f = rint (w * fps);
+ _timecode->SetLabel (wxString::Format (wxT("%02d:%02d:%02d:%02d"), h, m, s, f));
}
+/** Ask the player to emit its next frame, then update our display */
void
-FilmViewer::film_changed (FilmState::Property p)
+FilmViewer::fetch_next_frame ()
{
- switch (p) {
- case FilmState::THUMBS:
- if (_film && _film->thumbs().size() > 1) {
- _slider->SetRange (0, _film->thumbs().size() - 1);
- } else {
- _thumb_panel->clear ();
- _slider->SetRange (0, 1);
+ /* Clear our frame in case we don't get a new one */
+ _frame.reset ();
+
+ if (!_player) {
+ return;
+ }
+
+ _got_frame = false;
+
+ if (!_queue.empty ()) {
+ process_video (_queue.back().first, _queue.back().second);
+ _queue.pop_back ();
+ } else {
+ try {
+ while (!_got_frame && !_player->pass ()) {}
+ } catch (DecodeError& e) {
+ _play_button->SetValue (false);
+ check_play_state ();
+ error_dialog (this, wxString::Format (_("Could not decode video for view (%s)"), std_to_wx(e.what()).data()));
}
-
- _slider->SetValue (0);
- set_thumbnail (0);
- break;
- case FilmState::CONTENT:
- setup_visibility ();
- _film->examine_content ();
- update_thumbs ();
- break;
- case FilmState::CROP:
- case FilmState::FORMAT:
- case FilmState::WITH_SUBTITLES:
- case FilmState::SUBTITLE_OFFSET:
- case FilmState::SUBTITLE_SCALE:
- _thumb_panel->recompose ();
- break;
- default:
- break;
}
+
+ _panel->Refresh ();
+ _panel->Update ();
}
void
-FilmViewer::set_film (Film* f)
+FilmViewer::active_jobs_changed (bool a)
{
- if (_film == f) {
- return;
+ if (a) {
+ list<shared_ptr<Job> > jobs = JobManager::instance()->get ();
+ list<shared_ptr<Job> >::iterator i = jobs.begin ();
+ while (i != jobs.end() && boost::dynamic_pointer_cast<ExamineContentJob> (*i) == 0) {
+ ++i;
+ }
+
+ if (i == jobs.end() || (*i)->finished()) {
+ /* no examine content job running, so we're ok to use the viewer */
+ a = false;
+ }
}
-
- _film = f;
- _thumb_panel->set_film (_film);
+
+ _slider->Enable (!a);
+ _play_button->Enable (!a);
+}
- if (!_film) {
+void
+FilmViewer::back_clicked (wxCommandEvent &)
+{
+ if (!_player) {
return;
}
- _film->Changed.connect (sigc::mem_fun (*this, &FilmViewer::film_changed));
- film_changed (Film::CROP);
- film_changed (Film::THUMBS);
- setup_visibility ();
+ /* Player::video_position is the time after the last frame that we received.
+ We want to see the one before it, so we need to go back 2.
+ */
+
+ _player->seek (_player->video_position() - _film->video_frames_to_time(2), true);
+ fetch_next_frame ();
}
void
-FilmViewer::update_thumbs ()
+FilmViewer::forward_clicked (wxCommandEvent &)
{
- if (!_film) {
+ if (!_player) {
return;
}
- _film->update_thumbs_pre_gui ();
-
- shared_ptr<const FilmState> s = _film->state_copy ();
- shared_ptr<Options> o (new Options (s->dir ("thumbs"), ".png", ""));
- o->out_size = _film->size ();
- o->apply_crop = false;
- o->decode_audio = false;
- o->decode_video_frequency = 128;
- o->decode_subtitles = true;
-
- shared_ptr<Job> j (new ThumbsJob (s, o, _film->log(), shared_ptr<Job> ()));
- j->Finished.connect (sigc::mem_fun (_film, &Film::update_thumbs_post_gui));
- JobManager::instance()->add (j);
+ fetch_next_frame ();
}
void
-FilmViewer::setup_visibility ()
+FilmViewer::player_changed (bool frequent)
{
- if (!_film) {
+ if (frequent) {
return;
}
-
- ContentType const c = _film->content_type ();
- _slider->Show (c == VIDEO);
+
+ calculate_sizes ();
+ fetch_current_frame_again ();
}
projects / dcpomatic.git / blobdiff