X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fwx%2Ffilm_viewer.cc;h=7b8f0222006560ad3611cfbde747d25376e032a3;hb=b1873c51b2e8265a01a8f0eced7fc3465f1677dc;hp=a7b8a955004234bf06f5869a08bb42d47e59c73f;hpb=8ee9ec79d8c14f5f23b21a7e7f512a9d8e7a809e;p=dcpomatic.git diff --git a/src/wx/film_viewer.cc b/src/wx/film_viewer.cc index a7b8a9550..7b8f02220 100644 --- a/src/wx/film_viewer.cc +++ b/src/wx/film_viewer.cc @@ -18,258 +18,386 @@ */ /** @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 #include +#include #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 "film_viewer.h" #include "wx_util.h" +#include "video_decoder.h" -using namespace std; -using namespace boost; +using std::string; +using std::pair; +using std::max; +using std::cout; +using std::list; +using boost::shared_ptr; +using libdcp::Size; -class ThumbPanel : public wxPanel +FilmViewer::FilmViewer (shared_ptr 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, wxT ("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 (_current_image != _pending_image) { - delete _image; - _image = new wxImage (std_to_wx (_pending_image)); - _current_image = _pending_image; - setup (); - } + _v_sizer->Add (_panel, 1, wxEXPAND); - if (_current_crop != _pending_crop) { - _current_crop = _pending_crop; - setup (); - } + wxBoxSizer* h_sizer = new wxBoxSizer (wxHORIZONTAL); + h_sizer->Add (_play_button, 0, wxEXPAND); + h_sizer->Add (_slider, 1, wxEXPAND); - wxPaintDC dc (this); - if (_bitmap) { - dc.DrawBitmap (*_bitmap, 0, 0, false); - } - } + _v_sizer->Add (h_sizer, 0, wxEXPAND); - void size_event (wxSizeEvent &) - { - if (!_image) { - return; - } + _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); - setup (); - Refresh (); - } + set_film (f); - void set (string f) - { - _pending_image = f; - Refresh (); - } + JobManager::instance()->ActiveJobsChanged.connect ( + bind (&FilmViewer::active_jobs_changed, this, _1) + ); +} - void set_crop (Crop c) +void +FilmViewer::film_changed (Film::Property p) +{ + switch (p) { + case Film::FORMAT: + calculate_sizes (); + update_from_raw (); + break; + case Film::CONTENT: { - _pending_crop = c; - Refresh (); + DecodeOptions o; + o.decode_audio = false; + o.decode_subtitles = true; + o.video_sync = false; + _decoders = decoder_factory (_film, o, 0); + _decoders.video->Video.connect (bind (&FilmViewer::process_video, this, _1, _2, _3)); + _decoders.video->OutputChanged.connect (boost::bind (&FilmViewer::decoder_changed, this)); + _decoders.video->set_subtitle_stream (_film->subtitle_stream()); + calculate_sizes (); + get_frame (); + _panel->Refresh (); + _slider->Show (_film->content_type() == VIDEO); + _play_button->Show (_film->content_type() == VIDEO); + _v_sizer->Layout (); + break; + } + case Film::WITH_SUBTITLES: + case Film::SUBTITLE_OFFSET: + case Film::SUBTITLE_SCALE: + case Film::SCALER: + update_from_raw (); + break; + case Film::SUBTITLE_STREAM: + _decoders.video->set_subtitle_stream (_film->subtitle_stream ()); + break; + default: + break; } +} - void set_film (Film* f) - { - _film = f; - if (!_film) { - clear (); - Refresh (); - } else { - setup (); - Refresh (); - } +void +FilmViewer::set_film (shared_ptr f) +{ + if (_film == f) { + return; } + + _film = f; - void clear () - { - delete _bitmap; - _bitmap = 0; - delete _image; - _image = 0; + if (!_film) { + return; } - void refresh () - { - setup (); - Refresh (); + _film->Changed.connect (boost::bind (&FilmViewer::film_changed, this, _1)); + + film_changed (Film::CONTENT); + film_changed (Film::CROP); + film_changed (Film::FORMAT); + film_changed (Film::WITH_SUBTITLES); + film_changed (Film::SUBTITLE_OFFSET); + film_changed (Film::SUBTITLE_SCALE); + film_changed (Film::SUBTITLE_STREAM); +} + +void +FilmViewer::decoder_changed () +{ + if (_decoders.video->seek_to_last ()) { + return; } - DECLARE_EVENT_TABLE (); + get_frame (); + _panel->Refresh (); + _panel->Update (); +} -private: +void +FilmViewer::timer (wxTimerEvent &) +{ + if (!_film) { + return; + } + + _panel->Refresh (); + _panel->Update (); - void setup () - { - if (!_film || !_image) { - return; - } - - int vw, vh; - GetSize (&vw, &vh); - - float const target = _film->format() ? _film->format()->ratio_as_float () : 1.78; - - _cropped_image = _image->GetSubImage ( - wxRect ( - _current_crop.left, - _current_crop.top, - _image->GetWidth() - (_current_crop.left + _current_crop.right), - _image->GetHeight() - (_current_crop.top + _current_crop.bottom) - ) - ); + get_frame (); - if ((float (vw) / vh) > target) { - /* view is longer (horizontally) than the ratio; fit height */ - _cropped_image.Rescale (vh * target, vh, wxIMAGE_QUALITY_HIGH); - } else { - /* view is shorter (horizontally) than the ratio; fit width */ - _cropped_image.Rescale (vw, vw / target, wxIMAGE_QUALITY_HIGH); + if (_film->length()) { + int const new_slider_position = 4096 * _decoders.video->last_source_time() / (_film->length().get() / _film->frames_per_second()); + if (new_slider_position != _slider->GetValue()) { + _slider->SetValue (new_slider_position); } - - delete _bitmap; - _bitmap = new wxBitmap (_cropped_image); } +} - Film* _film; - wxImage* _image; - std::string _current_image; - std::string _pending_image; - wxImage _cropped_image; - wxBitmap* _bitmap; - Crop _current_crop; - Crop _pending_crop; -}; - -BEGIN_EVENT_TABLE (ThumbPanel, wxPanel) -EVT_PAINT (ThumbPanel::paint_event) -EVT_SIZE (ThumbPanel::size_event) -END_EVENT_TABLE () - -FilmViewer::FilmViewer (Film* f, wxWindow* p) - : wxPanel (p) - , _film (f) + +void +FilmViewer::paint_panel (wxPaintEvent &) { - _sizer = new wxBoxSizer (wxVERTICAL); - SetSizer (_sizer); - - _thumb_panel = new ThumbPanel (this, f); - _sizer->Add (_thumb_panel, 1, wxEXPAND); + wxPaintDC dc (_panel); - int const max = f ? f->num_thumbs() - 1 : 0; - _slider = new wxSlider (this, wxID_ANY, 0, 0, max); - _sizer->Add (_slider, 0, wxEXPAND | wxLEFT | wxRIGHT); - set_thumbnail (0); + if (_clear_required) { + dc.Clear (); + _clear_required = false; + } - _slider->Connect (wxID_ANY, wxEVT_COMMAND_SLIDER_UPDATED, wxCommandEventHandler (FilmViewer::slider_changed), 0, this); + if (!_display_frame || !_film || !_out_size.width || !_out_size.height) { + dc.Clear (); + return; + } + + 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 * 2 + _film_size.width, _film_size.height); + } - set_film (_film); + 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); + + 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::set_thumbnail (int n) +FilmViewer::slider_moved (wxScrollEvent &) { - if (_film == 0 || _film->num_thumbs() <= n) { + if (!_film || !_film->length()) { return; } - - _thumb_panel->set (_film->thumb_file(n)); + + if (_decoders.video->seek (_slider->GetValue() * _film->length().get() / (4096 * _film->frames_per_second()))) { + return; + } + + get_frame (); + _panel->Refresh (); + _panel->Update (); } void -FilmViewer::slider_changed (wxCommandEvent &) +FilmViewer::panel_sized (wxSizeEvent& ev) { - set_thumbnail (_slider->GetValue ()); + _panel_size.width = ev.GetSize().GetWidth(); + _panel_size.height = ev.GetSize().GetHeight(); + calculate_sizes (); + update_from_raw (); } void -FilmViewer::film_changed (Film::Property p) +FilmViewer::update_from_raw () { - if (p == Film::CROP) { - _thumb_panel->set_crop (_film->crop ()); - } else if (p == Film::THUMBS) { - if (_film && _film->num_thumbs() > 1) { - _slider->SetRange (0, _film->num_thumbs () - 1); - } else { - _thumb_panel->clear (); - _slider->SetRange (0, 1); - } - - _slider->SetValue (0); - _thumb_panel->refresh (); - } else if (p == Film::FORMAT) { - _thumb_panel->refresh (); - } else if (p == Film::CONTENT) { - setup_visibility (); - _film->examine_content (); - update_thumbs (); + if (!_raw_frame) { + return; } + + raw_to_display (); + + _panel->Refresh (); + _panel->Update (); } void -FilmViewer::set_film (Film* f) +FilmViewer::raw_to_display () { - _film = f; - _thumb_panel->set_film (_film); + if (!_raw_frame || _out_size.width < 64 || _out_size.height < 64 || !_film) { + return; + } + + libdcp::Size old_size; + if (_display_frame) { + old_size = _display_frame->size(); + } + + /* Get a compacted image as we have to feed it to wxWidgets */ + _display_frame = _raw_frame->scale_and_convert_to_rgb (_film_size, 0, _film->scaler(), false); + + if (old_size != _display_frame->size()) { + _clear_required = true; + } + if (_raw_sub) { + Rect tx = subtitle_transformed_area ( + float (_film_size.width) / _film->size().width, + float (_film_size.height) / _film->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 (); + } +} + +void +FilmViewer::calculate_sizes () +{ if (!_film) { return; } - _film->Changed.connect (sigc::mem_fun (*this, &FilmViewer::film_changed)); - film_changed (Film::THUMBS); - _thumb_panel->refresh (); - setup_visibility (); + Format const * format = _film->format (); + + float const panel_ratio = static_cast (_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; + } + + /* 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 (format->dcp_padding (_film)) * _out_size.width / format->dcp_size().width; + } + + _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_thumbs () +FilmViewer::play_clicked (wxCommandEvent &) +{ + check_play_state (); +} + +void +FilmViewer::check_play_state () { if (!_film) { return; } + + if (_play_button->GetValue()) { + _timer.Start (1000 / _film->frames_per_second()); + } else { + _timer.Stop (); + } +} - _film->update_thumbs_pre_gui (); +void +FilmViewer::process_video (shared_ptr image, bool, shared_ptr sub) +{ + _raw_frame = image; + _raw_sub = sub; - shared_ptr s = _film->state_copy (); - shared_ptr 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 j (new ThumbsJob (s, o, _film->log ())); - j->Finished.connect (sigc::mem_fun (_film, &Film::update_thumbs_post_gui)); - JobManager::instance()->add (j); + raw_to_display (); + + _got_frame = true; } void -FilmViewer::setup_visibility () +FilmViewer::get_frame () { - if (!_film) { - return; + /* Clear our raw frame in case we don't get a new one */ + _raw_frame.reset (); + + try { + _got_frame = false; + while (!_got_frame) { + if (_decoders.video->pass ()) { + /* We didn't get a frame before the decoder gave up, + so clear our display frame. + */ + _display_frame.reset (); + break; + } + } + } catch (DecodeError& e) { + error_dialog (this, String::compose ("Could not decode video for view (%1)", e.what())); } +} - ContentType const c = _film->content_type (); - _slider->Show (c == VIDEO); +void +FilmViewer::active_jobs_changed (bool a) +{ + if (a) { + list > jobs = JobManager::instance()->get (); + list >::iterator i = jobs.begin (); + while (i != jobs.end() && boost::dynamic_pointer_cast (*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); } +