Merge master; fix crash on new film.
[dcpomatic.git] / src / wx / film_viewer.cc
index 4f2985a061db3677ebfb6d0ed5c89bf2fd25c9f8..e9a1a574be01477b884e34a5eeb05e30684edbcc 100644 (file)
 #include "lib/format.h"
 #include "lib/util.h"
 #include "lib/job_manager.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"
@@ -45,6 +48,8 @@ using std::max;
 using std::cout;
 using std::list;
 using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
+using boost::weak_ptr;
 using libdcp::Size;
 
 FilmViewer::FilmViewer (shared_ptr<Film> f, wxWindow* p)
@@ -114,43 +119,22 @@ FilmViewer::film_changed (Film::Property p)
                break;
        case Film::CONTENT:
        {
-               DecodeOptions o;
-               o.decode_audio = false;
-               o.decode_subtitles = true;
-               o.video_sync = false;
-
-               try {
-                       _decoders = decoder_factory (_film, o);
-               } catch (StringError& e) {
-                       error_dialog (this, wxString::Format (_("Could not open content file (%s)"), std_to_wx(e.what()).data()));
-                       return;
-               }
-               
-               if (_decoders.video == 0) {
-                       break;
-               }
-               _decoders.video->Video.connect (bind (&FilmViewer::process_video, this, _1, _2, _3, _4));
-               _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 ();
+               wxScrollEvent ev;
+               slider_moved (ev);
                break;
        }
        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:
-               update_from_raw ();
-               break;
-       case Film::SUBTITLE_STREAM:
-               if (_decoders.video) {
-                       _decoders.video->set_subtitle_stream (_film->subtitle_stream ());
-               }
+       case Film::CROP:
+               update_from_decoder ();
                break;
        default:
                break;
@@ -163,7 +147,7 @@ FilmViewer::set_film (shared_ptr<Film> f)
        if (_film == f) {
                return;
        }
-       
+
        _film = f;
 
        _raw_frame.reset ();
@@ -175,20 +159,28 @@ FilmViewer::set_film (shared_ptr<Film> f)
                return;
        }
 
+       _player = f->player ();
+       _player->disable_audio ();
+       /* 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.
+       */
+       
+       _player->Video.connect (bind (&FilmViewer::process_video, this, _1, _2, _3, _4));
+       
        _film->Changed.connect (boost::bind (&FilmViewer::film_changed, this, _1));
+       _film->ContentChanged.connect (boost::bind (&FilmViewer::film_content_changed, this, _1, _2));
 
        film_changed (Film::CONTENT);
        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 ()
+FilmViewer::update_from_decoder ()
 {
-       if (_decoders.video == 0 || _decoders.video->seek_to_last ()) {
+       if (!_player || _player->seek (_player->last_video_time ())) {
                return;
        }
 
@@ -200,7 +192,7 @@ FilmViewer::decoder_changed ()
 void
 FilmViewer::timer (wxTimerEvent &)
 {
-       if (!_film || !_decoders.video) {
+       if (!_player) {
                return;
        }
        
@@ -209,8 +201,8 @@ FilmViewer::timer (wxTimerEvent &)
 
        get_frame ();
 
-       if (_film->length()) {
-               int const new_slider_position = 4096 * _decoders.video->last_source_time() / (_film->length().get() / _film->source_frame_rate());
+       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);
                }
@@ -266,11 +258,11 @@ FilmViewer::paint_panel (wxPaintEvent &)
 void
 FilmViewer::slider_moved (wxScrollEvent &)
 {
-       if (!_film || !_film->length() || !_decoders.video) {
+       if (!_film || !_player) {
                return;
        }
-       
-       if (_decoders.video->seek (_slider->GetValue() * _film->length().get() / (4096 * _film->source_frame_rate()))) {
+
+       if (_player->seek (_slider->GetValue() * _film->video_length() / (4096 * _film->video_frame_rate()))) {
                return;
        }
        
@@ -308,7 +300,7 @@ FilmViewer::raw_to_display ()
                return;
        }
 
-       boost::shared_ptr<const Image> input = _raw_frame;
+       shared_ptr<const Image> input = _raw_frame;
 
        pair<string, string> const s = Filter::ffmpeg_strings (_film->filters());
        if (!s.second.empty ()) {
@@ -324,7 +316,7 @@ FilmViewer::raw_to_display ()
                   when working out the scale that we are applying.
                */
 
-               Size const cropped_size = _film->cropped_size (_film->size ());
+               Size const cropped_size = _film->cropped_size (_film->video_size ());
 
                Rect tx = subtitle_transformed_area (
                        float (_film_size.width) / cropped_size.width,
@@ -343,7 +335,7 @@ FilmViewer::raw_to_display ()
 void
 FilmViewer::calculate_sizes ()
 {
-       if (!_film) {
+       if (!_film || !_player) {
                return;
        }
 
@@ -393,7 +385,7 @@ FilmViewer::check_play_state ()
        }
        
        if (_play_button->GetValue()) {
-               _timer.Start (1000 / _film->source_frame_rate());
+               _timer.Start (1000 / _film->video_frame_rate());
        } else {
                _timer.Stop ();
        }
@@ -409,7 +401,7 @@ FilmViewer::process_video (shared_ptr<const Image> image, bool, shared_ptr<Subti
 
        _got_frame = true;
 
-       double const fps = _decoders.video->frames_per_second ();
+       double const fps = _film->video_frame_rate ();
        _frame->SetLabel (wxString::Format (wxT("%d"), int (rint (t * fps))));
 
        double w = t;
@@ -423,21 +415,24 @@ FilmViewer::process_video (shared_ptr<const Image> image, bool, shared_ptr<Subti
        _timecode->SetLabel (wxString::Format (wxT("%02d:%02d:%02d:%02d"), h, m, s, f));
 }
 
+/** Get a new _raw_frame from the decoder and then do
+ *  raw_to_display ().
+ */
 void
 FilmViewer::get_frame ()
 {
        /* Clear our raw frame in case we don't get a new one */
        _raw_frame.reset ();
 
-       if (_decoders.video == 0) {
+       if (!_player) {
                _display_frame.reset ();
                return;
        }
-       
+
        try {
                _got_frame = false;
                while (!_got_frame) {
-                       if (_decoders.video->pass ()) {
+                       if (_player->pass ()) {
                                /* We didn't get a frame before the decoder gave up,
                                   so clear our display frame.
                                */
@@ -472,14 +467,24 @@ FilmViewer::active_jobs_changed (bool a)
        _play_button->Enable (!a);
 }
 
+void
+FilmViewer::film_content_changed (weak_ptr<Content>, int p)
+{
+       if (p == VideoContentProperty::VIDEO_LENGTH) {
+               /* Force an update to our frame */
+               wxScrollEvent ev;
+               slider_moved (ev);
+       }
+}
+
 void
 FilmViewer::back_clicked (wxCommandEvent &)
 {
-       if (!_decoders.video) {
+       if (!_player) {
                return;
        }
        
-       _decoders.video->seek_back ();
+       _player->seek_back ();
        get_frame ();
        _panel->Refresh ();
        _panel->Update ();
@@ -488,11 +493,11 @@ FilmViewer::back_clicked (wxCommandEvent &)
 void
 FilmViewer::forward_clicked (wxCommandEvent &)
 {
-       if (!_decoders.video) {
+       if (!_player) {
                return;
        }
 
-       _decoders.video->seek_forward ();
+       _player->seek_forward ();
        get_frame ();
        _panel->Refresh ();
        _panel->Update ();