*/
/** @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/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"
-
-using namespace std;
-using namespace boost;
-
-class ThumbPanel : public wxPanel
+#include "wx_util.h"
+#include "video_decoder.h"
+
+using std::string;
+using std::pair;
+using std::max;
+using std::cout;
+using std::list;
+using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
+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))
+ , _play_button (new wxToggleButton (this, wxID_ANY, _("Play")))
+ , _display_frame_x (0)
+ , _got_frame (false)
+ , _clear_required (false)
{
-public:
- ThumbPanel (wxPanel* parent, Film* film)
- : wxPanel (parent)
- , _film (film)
- , _image (0)
- , _bitmap (0)
- {
- }
+ _panel->SetDoubleBuffered (true);
+#if wxMAJOR_VERSION == 2 && wxMINOR_VERSION >= 9
+ _panel->SetBackgroundStyle (wxBG_STYLE_PAINT);
+#endif
+
+ _v_sizer = new wxBoxSizer (wxVERTICAL);
+ SetSizer (_v_sizer);
- void paint_event (wxPaintEvent& ev)
- {
- if (!_bitmap) {
- return;
- }
+ _v_sizer->Add (_panel, 1, wxEXPAND);
- wxPaintDC dc (this);
- dc.DrawBitmap (*_bitmap, 0, 0, false);
- }
+ wxBoxSizer* h_sizer = new wxBoxSizer (wxHORIZONTAL);
+ h_sizer->Add (_play_button, 0, wxEXPAND);
+ h_sizer->Add (_slider, 1, wxEXPAND);
- void size_event (wxSizeEvent &)
- {
- if (!_image) {
- return;
- }
+ _v_sizer->Add (h_sizer, 0, wxEXPAND | wxALL, 6);
- int vw, vh;
- GetSize (&vw, &vh);
+ _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);
- float const target = _film->format()->ratio_as_float ();
+ set_film (f);
- delete _bitmap;
- if ((float (vw) / vh) > target) {
- /* view is longer (horizontally) than the ratio; fit height */
- _bitmap = new wxBitmap (_image->Scale (vh * target, vh));
- } else {
- /* view is shorter (horizontally) than the ratio; fit width */
- _bitmap = new wxBitmap (_image->Scale (vw, vw / target));
- }
- }
+ JobManager::instance()->ActiveJobsChanged.connect (
+ bind (&FilmViewer::active_jobs_changed, this, _1)
+ );
+}
- void load (string f)
+void
+FilmViewer::film_changed (Film::Property p)
+{
+ switch (p) {
+ case Film::FORMAT:
+ calculate_sizes ();
+ update_from_raw ();
+ break;
+ case Film::CONTENT:
{
- clear ();
- _image = new wxImage (wxString (f.c_str(), wxConvUTF8));
- _bitmap = new wxBitmap (_image->Scale (512, 512));
+ calculate_sizes ();
+ get_frame ();
+ _panel->Refresh ();
+ _v_sizer->Layout ();
+ break;
}
-
- void clear ()
- {
- delete _bitmap;
- _bitmap = 0;
- delete _image;
- _image = 0;
+ case Film::WITH_SUBTITLES:
+ case Film::SUBTITLE_OFFSET:
+ case Film::SUBTITLE_SCALE:
+ raw_to_display ();
+ _panel->Refresh ();
+ _panel->Update ();
+ break;
+ case Film::SCALER:
+ case Film::FILTERS:
+ case Film::CROP:
+ update_from_decoder ();
+ break;
+ default:
+ break;
}
+}
- DECLARE_EVENT_TABLE ();
-
-private:
- Film* _film;
- wxImage* _image;
- wxBitmap* _bitmap;
-};
+void
+FilmViewer::set_film (shared_ptr<Film> f)
+{
+ if (_film == f) {
+ return;
+ }
-BEGIN_EVENT_TABLE (ThumbPanel, wxPanel)
-EVT_PAINT (ThumbPanel::paint_event)
-EVT_SIZE (ThumbPanel::size_event)
-END_EVENT_TABLE ()
+ _film = f;
-FilmViewer::FilmViewer (Film* f, wxWindow* p)
- : wxPanel (p)
- , _film (f)
-{
- _sizer = new wxBoxSizer (wxVERTICAL);
- SetSizer (_sizer);
-
- _thumb_panel = new ThumbPanel (this, f);
- _thumb_panel->Show (true);
- _sizer->Add (_thumb_panel, 1, wxEXPAND);
+ if (!_film) {
+ return;
+ }
-#if 0
- _scroller.add (_image);
+ _player = f->player ();
+ _player->disable_audio ();
+ _player->disable_video_sync ();
+ /* Don't disable subtitles here as we may need them, and it's nice to be able to turn them
+ on and off without needing obtain a new Player.
+ */
- Gtk::HBox* controls = manage (new Gtk::HBox);
- controls->set_spacing (6);
- controls->pack_start (_position_slider);
+ _player->Video.connect (bind (&FilmViewer::process_video, this, _1, _2, _3));
- _vbox.pack_start (_scroller, true, true);
- _vbox.pack_start (*controls, false, false);
- _vbox.set_border_width (12);
-
- _position_slider.set_digits (0);
- _position_slider.signal_format_value().connect (sigc::mem_fun (*this, &FilmViewer::format_position_slider_value));
- _position_slider.signal_value_changed().connect (sigc::mem_fun (*this, &FilmViewer::position_slider_changed));
+ _film->Changed.connect (boost::bind (&FilmViewer::film_changed, this, _1));
- _scroller.signal_size_allocate().connect (sigc::mem_fun (*this, &FilmViewer::scroller_size_allocate));
-#endif
+ film_changed (Film::CONTENT);
+ film_changed (Film::FORMAT);
+ film_changed (Film::WITH_SUBTITLES);
+ film_changed (Film::SUBTITLE_OFFSET);
+ film_changed (Film::SUBTITLE_SCALE);
+}
- set_film (_film);
+void
+FilmViewer::update_from_decoder ()
+{
+ if (!_player || _player->seek_to_last ()) {
+ return;
+ }
- load_thumbnail (42);//XXX
+ get_frame ();
+ _panel->Refresh ();
+ _panel->Update ();
}
void
-FilmViewer::load_thumbnail (int n)
+FilmViewer::timer (wxTimerEvent &)
{
- if (_film == 0 || _film->num_thumbs() <= n) {
+ if (!_player) {
return;
}
+
+ _panel->Refresh ();
+ _panel->Update ();
+
+ get_frame ();
+
+ if (_film->video_length()) {
+ int const new_slider_position = 4096 * _player->last_video_time() / (_film->video_length() / _film->video_frame_rate());
+ if (new_slider_position != _slider->GetValue()) {
+ _slider->SetValue (new_slider_position);
+ }
+ }
+}
+
+
+void
+FilmViewer::paint_panel (wxPaintEvent &)
+{
+ wxPaintDC dc (_panel);
+
+ if (_clear_required) {
+ dc.Clear ();
+ _clear_required = false;
+ }
- int const left = _film->left_crop ();
- int const right = _film->right_crop ();
- int const top = _film->top_crop ();
- int const bottom = _film->bottom_crop ();
+ if (!_display_frame || !_film || !_out_size.width || !_out_size.height) {
+ dc.Clear ();
+ return;
+ }
- _thumb_panel->load (_film->thumb_file(n));
+ if (_display_frame_x) {
+ dc.SetPen(*wxBLACK_PEN);
+ dc.SetBrush(*wxBLACK_BRUSH);
+ dc.DrawRectangle (0, 0, _display_frame_x, _film_size.height);
+ dc.DrawRectangle (_display_frame_x + _film_size.width, 0, _display_frame_x, _film_size.height);
+ }
-// _pixbuf = Gdk::Pixbuf::create_from_file (_film->thumb_file (n));
+ wxImage frame (_film_size.width, _film_size.height, _display_frame->data()[0], true);
+ wxBitmap frame_bitmap (frame);
+ dc.DrawBitmap (frame_bitmap, _display_frame_x, 0);
-// int const cw = _film->size().width - left - right;
-// int const ch = _film->size().height - top - bottom;
-// _cropped_pixbuf = Gdk::Pixbuf::create_subpixbuf (_pixbuf, left, top, cw, ch);
-// update_scaled_pixbuf ();
-// _image.set (_scaled_pixbuf);
+ if (_film->with_subtitles() && _display_sub) {
+ wxImage sub (_display_sub->size().width, _display_sub->size().height, _display_sub->data()[0], _display_sub->alpha(), true);
+ wxBitmap sub_bitmap (sub);
+ dc.DrawBitmap (sub_bitmap, _display_sub_position.x, _display_sub_position.y);
+ }
}
+
void
-FilmViewer::reload_current_thumbnail ()
+FilmViewer::slider_moved (wxScrollEvent &)
{
- load_thumbnail (42);//_position_slider.get_value ());
+ if (!_film || !_player) {
+ return;
+ }
+
+ if (_player->seek (_slider->GetValue() * _film->video_length() / (4096 * _film->video_frame_rate()))) {
+ return;
+ }
+
+ get_frame ();
+ _panel->Refresh ();
+ _panel->Update ();
}
void
-FilmViewer::position_slider_changed ()
+FilmViewer::panel_sized (wxSizeEvent& ev)
{
- reload_current_thumbnail ();
+ _panel_size.width = ev.GetSize().GetWidth();
+ _panel_size.height = ev.GetSize().GetHeight();
+ calculate_sizes ();
+ update_from_raw ();
}
-string
-FilmViewer::format_position_slider_value (double v) const
+void
+FilmViewer::update_from_raw ()
{
-#if 0
- stringstream s;
-
- if (_film && int (v) < _film->num_thumbs ()) {
- int const f = _film->thumb_frame (int (v));
- s << f << " " << seconds_to_hms (f / _film->frames_per_second ());
- } else {
- s << "-";
+ if (!_raw_frame) {
+ return;
}
+
+ raw_to_display ();
- return s.str ();
-#endif
+ _panel->Refresh ();
+ _panel->Update ();
}
void
-FilmViewer::film_changed (Film::Property p)
+FilmViewer::raw_to_display ()
{
-#if 0
- if (p == Film::LEFT_CROP || p == Film::RIGHT_CROP || p == Film::TOP_CROP || p == Film::BOTTOM_CROP) {
- reload_current_thumbnail ();
- } else if (p == Film::THUMBS) {
- if (_film && _film->num_thumbs() > 1) {
- _position_slider.set_range (0, _film->num_thumbs () - 1);
- } else {
- _image.clear ();
- _position_slider.set_range (0, 1);
- }
-
- _position_slider.set_value (0);
- reload_current_thumbnail ();
- } else if (p == Film::FORMAT) {
- reload_current_thumbnail ();
- } else if (p == Film::CONTENT) {
- setup_visibility ();
- _film->examine_content ();
- update_thumbs ();
+ if (!_raw_frame || _out_size.width < 64 || _out_size.height < 64 || !_film) {
+ return;
}
-#endif
-}
-void
-FilmViewer::set_film (Film* f)
-{
- _film = f;
+ libdcp::Size old_size;
+ if (_display_frame) {
+ old_size = _display_frame->size();
+ }
- if (!_film) {
- _thumb_panel->clear ();
- return;
+ shared_ptr<Image> input = _raw_frame;
+
+ pair<string, string> const s = Filter::ffmpeg_strings (_film->filters());
+ if (!s.second.empty ()) {
+ input = input->post_process (s.second, true);
+ }
+
+ /* Get a compacted image as we have to feed it to wxWidgets */
+ _display_frame = input->scale_and_convert_to_rgb (_film_size, 0, _film->scaler(), false);
+
+ if (old_size != _display_frame->size()) {
+ _clear_required = true;
}
-// _film->Changed.connect (sigc::mem_fun (*this, &FilmViewer::film_changed));
+ if (_raw_sub) {
- film_changed (Film::THUMBS);
-}
+ /* Our output is already cropped by the decoder, so we need to account for that
+ when working out the scale that we are applying.
+ */
+
+ Size const cropped_size = _film->cropped_size (_film->video_size ());
+
+ Rect tx = subtitle_transformed_area (
+ float (_film_size.width) / cropped_size.width,
+ float (_film_size.height) / cropped_size.height,
+ _raw_sub->area(), _film->subtitle_offset(), _film->subtitle_scale()
+ );
+
+ _display_sub.reset (new RGBPlusAlphaImage (_raw_sub->image()->scale (tx.size(), _film->scaler(), false)));
+ _display_sub_position = tx.position();
+ _display_sub_position.x += _display_frame_x;
+ } else {
+ _display_sub.reset ();
+ }
+}
-pair<int, int>
-FilmViewer::scaled_pixbuf_size () const
+void
+FilmViewer::calculate_sizes ()
{
-#if 0
- if (_film == 0) {
- return make_pair (0, 0);
+ if (!_film || !_player) {
+ return;
}
+
+ Format const * format = _film->format ();
- int const cw = _film->size().width - _film->left_crop() - _film->right_crop();
- int const ch = _film->size().height - _film->top_crop() - _film->bottom_crop();
+ float const panel_ratio = static_cast<float> (_panel_size.width) / _panel_size.height;
+ float const film_ratio = format ? format->container_ratio_as_float () : 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;
+ }
- float ratio = 1;
- if (_film->format()) {
- ratio = _film->format()->ratio_as_float() * ch / cw;
+ /* Work out how much padding there is in terms of our display; this will be the x position
+ of our _display_frame.
+ */
+ _display_frame_x = 0;
+ if (format) {
+ _display_frame_x = static_cast<float> (format->dcp_padding (_film)) * _out_size.width / format->dcp_size().width;
}
- Gtk::Allocation const a = _scroller.get_allocation ();
- float const zoom = min (float (a.get_width()) / (cw * ratio), float (a.get_height()) / cw);
- return make_pair (cw * zoom * ratio, ch * zoom);
-#endif
+ _film_size = _out_size;
+ _film_size.width -= _display_frame_x * 2;
+
+ /* Catch silly values */
+ if (_out_size.width < 64) {
+ _out_size.width = 64;
+ }
}
-
+
void
-FilmViewer::update_scaled_pixbuf ()
+FilmViewer::play_clicked (wxCommandEvent &)
{
-#if 0
- pair<int, int> const s = scaled_pixbuf_size ();
-
- if (s.first > 0 && s.second > 0 && _cropped_pixbuf) {
- _scaled_pixbuf = _cropped_pixbuf->scale_simple (s.first, s.second, Gdk::INTERP_HYPER);
- _image.set (_scaled_pixbuf);
- }
-#endif
+ check_play_state ();
}
void
-FilmViewer::update_thumbs ()
+FilmViewer::check_play_state ()
{
-#if 0
if (!_film) {
return;
}
+
+ if (_play_button->GetValue()) {
+ _timer.Start (1000 / _film->video_frame_rate());
+ } else {
+ _timer.Stop ();
+ }
+}
- _film->update_thumbs_pre_gui ();
+void
+FilmViewer::process_video (shared_ptr<Image> image, bool, shared_ptr<Subtitle> sub)
+{
+ _raw_frame = image;
+ _raw_sub = sub;
- shared_ptr<const FilmState> s = _film->state_copy ();
- shared_ptr<Options> o (new Options (s->dir ("thumbs"), ".tiff", ""));
- o->out_size = _film->size ();
- o->apply_crop = false;
- o->decode_audio = false;
- o->decode_video_frequency = 128;
-
- shared_ptr<Job> j (new ThumbsJob (s, o, _film->log ()));
- j->Finished.connect (sigc::mem_fun (_film, &Film::update_thumbs_post_gui));
- JobManager::instance()->add (j);
-#endif
+ raw_to_display ();
+
+ _got_frame = true;
}
+/** Get a new _raw_frame from the decoder and then do
+ * raw_to_display ().
+ */
void
-FilmViewer::setup_visibility ()
+FilmViewer::get_frame ()
{
-#if 0
- if (!_film) {
+ /* Clear our raw frame in case we don't get a new one */
+ _raw_frame.reset ();
+
+ if (!_player) {
+ _display_frame.reset ();
return;
}
- ContentType const c = _film->content_type ();
- _position_slider.property_visible() = (c == VIDEO);
-#endif
+ try {
+ _got_frame = false;
+ while (!_got_frame) {
+ if (_player->pass ()) {
+ /* We didn't get a frame before the decoder gave up,
+ so clear our display frame.
+ */
+ _display_frame.reset ();
+ break;
+ }
+ }
+ } 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()));
+ }
+}
+
+void
+FilmViewer::active_jobs_changed (bool a)
+{
+ 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;
+ }
+ }
+
+ _slider->Enable (!a);
+ _play_button->Enable (!a);
}
+
projects / dcpomatic.git / blobdiff