X-Git-Url: https://main.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=src%2Fwx%2Ffilm_viewer.cc;h=8c1a79113c732d33d2ca054307569eba039b1b90;hp=e0244ce83370f0561177db30b8d21496a4e844cd;hb=b33437685e43427459e7ea752f3cd3d621878573;hpb=3828baf56467224f5d44049bf1e7a7ed11f43a05 diff --git a/src/wx/film_viewer.cc b/src/wx/film_viewer.cc index e0244ce83..17573b438 100644 --- a/src/wx/film_viewer.cc +++ b/src/wx/film_viewer.cc @@ -1,5 +1,5 @@ /* - Copyright (C) 2012-2016 Carl Hetherington + Copyright (C) 2012-2019 Carl Hetherington This file is part of DCP-o-matic. @@ -22,6 +22,13 @@ * @brief A wx widget to view a preview of a Film. */ +#include "film_viewer.h" +#include "playhead_to_timecode_dialog.h" +#include "playhead_to_frame_dialog.h" +#include "wx_util.h" +#include "closed_captions_dialog.h" +#include "gl_video_view.h" +#include "simple_video_view.h" #include "lib/film.h" #include "lib/ratio.h" #include "lib/util.h" @@ -35,9 +42,11 @@ #include "lib/video_content.h" #include "lib/video_decoder.h" #include "lib/timer.h" +#include "lib/butler.h" #include "lib/log.h" -#include "film_viewer.h" -#include "wx_util.h" +#include "lib/config.h" +#include "lib/compose.hpp" +#include "lib/dcpomatic_log.h" extern "C" { #include } @@ -60,78 +69,79 @@ using boost::dynamic_pointer_cast; using boost::weak_ptr; using boost::optional; using dcp::Size; +using namespace dcpomatic; + +static +int +rtaudio_callback (void* out, void *, unsigned int frames, double, RtAudioStreamStatus, void* data) +{ + return reinterpret_cast(data)->audio_callback (out, frames); +} FilmViewer::FilmViewer (wxWindow* p) - : wxPanel (p) - , _panel (new wxPanel (this)) - , _outline_content (new wxCheckBox (this, wxID_ANY, _("Outline content"))) - , _left_eye (new wxRadioButton (this, wxID_ANY, _("Left eye"), wxDefaultPosition, wxDefaultSize, wxRB_GROUP)) - , _right_eye (new wxRadioButton (this, wxID_ANY, _("Right eye"))) - , _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"))) - , _coalesce_player_changes (false) - , _pending_player_change (false) - , _last_get_accurate (true) -{ -#ifndef __WXOSX__ - _panel->SetDoubleBuffered (true); + : _coalesce_player_changes (false) + , _audio (DCPOMATIC_RTAUDIO_API) + , _audio_channels (0) + , _audio_block_size (1024) + , _playing (false) + , _suspended (0) + , _latency_history_count (0) + , _closed_captions_dialog (new ClosedCaptionsDialog(p, this)) + , _outline_content (false) + , _pad_black (false) +#ifdef DCPOMATIC_VARIANT_SWAROOP + , _background_image (false) #endif + , _idle_get (false) +{ + switch (Config::instance()->video_view_type()) { + case Config::VIDEO_VIEW_OPENGL: + _video_view = new GLVideoView (this, p); + break; + case Config::VIDEO_VIEW_SIMPLE: + _video_view = new SimpleVideoView (this, p); + break; + } - _panel->SetBackgroundStyle (wxBG_STYLE_PAINT); - - _v_sizer = new wxBoxSizer (wxVERTICAL); - SetSizer (_v_sizer); - - _v_sizer->Add (_panel, 1, wxEXPAND); - - wxBoxSizer* view_options = new wxBoxSizer (wxHORIZONTAL); - view_options->Add (_outline_content, 0, wxRIGHT, DCPOMATIC_SIZER_GAP); - view_options->Add (_left_eye, 0, wxLEFT | wxRIGHT, DCPOMATIC_SIZER_GAP); - view_options->Add (_right_eye, 0, wxLEFT | wxRIGHT, DCPOMATIC_SIZER_GAP); - _v_sizer->Add (view_options, 0, wxALL, DCPOMATIC_SIZER_GAP); - - wxBoxSizer* h_sizer = new wxBoxSizer (wxHORIZONTAL); - - wxBoxSizer* time_sizer = new wxBoxSizer (wxVERTICAL); - time_sizer->Add (_frame_number, 0, wxEXPAND); - time_sizer->Add (_timecode, 0, wxEXPAND); + _video_view->Sized.connect (boost::bind(&FilmViewer::video_view_sized, this)); - 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); + set_film (shared_ptr ()); - _v_sizer->Add (h_sizer, 0, wxEXPAND | wxALL, 6); + _config_changed_connection = Config::instance()->Changed.connect (bind (&FilmViewer::config_changed, this, _1)); + config_changed (Config::SOUND_OUTPUT); +} - _frame_number->SetMinSize (wxSize (84, -1)); - _back_button->SetMinSize (wxSize (32, -1)); - _forward_button->SetMinSize (wxSize (32, -1)); +FilmViewer::~FilmViewer () +{ + stop (); +} - _panel->Bind (wxEVT_PAINT, boost::bind (&FilmViewer::paint_panel, this)); - _panel->Bind (wxEVT_SIZE, boost::bind (&FilmViewer::panel_sized, this, _1)); - _outline_content->Bind(wxEVT_COMMAND_CHECKBOX_CLICKED, boost::bind (&FilmViewer::refresh_panel, this)); - _left_eye->Bind (wxEVT_COMMAND_RADIOBUTTON_SELECTED, boost::bind (&FilmViewer::refresh, this)); - _right_eye->Bind (wxEVT_COMMAND_RADIOBUTTON_SELECTED, boost::bind (&FilmViewer::refresh, this)); - _slider->Bind (wxEVT_SCROLL_THUMBTRACK, boost::bind (&FilmViewer::slider_moved, this)); - _slider->Bind (wxEVT_SCROLL_PAGEUP, boost::bind (&FilmViewer::slider_moved, this)); - _slider->Bind (wxEVT_SCROLL_PAGEDOWN, boost::bind (&FilmViewer::slider_moved, this)); - _play_button->Bind (wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, boost::bind (&FilmViewer::play_clicked, this)); - _timer.Bind (wxEVT_TIMER, boost::bind (&FilmViewer::timer, this)); - _back_button->Bind (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&FilmViewer::back_clicked, this)); - _forward_button->Bind (wxEVT_COMMAND_BUTTON_CLICKED, boost::bind (&FilmViewer::forward_clicked, this)); +/** Ask for ::get() to be called next time we are idle */ +void +FilmViewer::request_idle_display_next_frame () +{ + if (_idle_get) { + return; + } - set_film (shared_ptr ()); + _idle_get = true; + DCPOMATIC_ASSERT (signal_manager); + signal_manager->when_idle (boost::bind(&FilmViewer::idle_handler, this)); +} - JobManager::instance()->ActiveJobsChanged.connect ( - bind (&FilmViewer::active_jobs_changed, this, _2) - ); +void +FilmViewer::idle_handler () +{ + if (!_idle_get) { + return; + } - setup_sensitivity (); + if (_video_view->display_next_frame(true)) { + _idle_get = false; + } else { + /* get() could not complete quickly so we'll try again later */ + signal_manager->when_idle (boost::bind(&FilmViewer::idle_handler, this)); + } } void @@ -143,198 +153,96 @@ FilmViewer::set_film (shared_ptr film) _film = film; - _frame.reset (); - - update_position_slider (); - update_position_label (); + _video_view->clear (); + _closed_captions_dialog->clear (); if (!_film) { + _player.reset (); + recreate_butler (); + _video_view->update (); return; } try { _player.reset (new Player (_film, _film->playlist ())); _player->set_fast (); - } catch (bad_alloc) { - error_dialog (this, _("There is not enough free memory to do that.")); + if (_dcp_decode_reduction) { + _player->set_dcp_decode_reduction (_dcp_decode_reduction); + } + } catch (bad_alloc &) { + error_dialog (_video_view->get(), _("There is not enough free memory to do that.")); _film.reset (); return; } - /* Always burn in subtitles, even if content is set not to, otherwise we won't see them - in the preview. - */ - _player->set_always_burn_subtitles (true); - _player->set_ignore_audio (); + _player->set_always_burn_open_subtitles (); _player->set_play_referenced (); - _film_connection = _film->Changed.connect (boost::bind (&FilmViewer::film_changed, this, _1)); + _film->Change.connect (boost::bind (&FilmViewer::film_change, this, _1, _2)); + _film->LengthChange.connect (boost::bind(&FilmViewer::film_length_change, this)); + _player->Change.connect (boost::bind (&FilmViewer::player_change, this, _1, _2, _3)); - _player_connection = _player->Changed.connect (boost::bind (&FilmViewer::player_changed, this, _1)); + /* Keep about 1 second's worth of history samples */ + _latency_history_count = _film->audio_frame_rate() / _audio_block_size; - calculate_sizes (); - refresh (); + recreate_butler (); - setup_sensitivity (); + calculate_sizes (); + slow_refresh (); } void -FilmViewer::refresh_panel () +FilmViewer::recreate_butler () { - _panel->Refresh (); - _panel->Update (); -} + suspend (); + _butler.reset (); -void -FilmViewer::get (DCPTime p, bool accurate) -{ - if (!_player) { + if (!_film) { + resume (); return; } - list > all_pv; - try { - all_pv = _player->get_video (p, accurate); - } catch (exception& e) { - error_dialog (this, wxString::Format (_("Could not get video for view (%s)"), std_to_wx(e.what()).data())); - } - - if (!all_pv.empty ()) { - try { - shared_ptr pv; - if (all_pv.size() == 2) { - /* We have 3D; choose the correct eye */ - if (_left_eye->GetValue()) { - if (all_pv.front()->eyes() == EYES_LEFT) { - pv = all_pv.front(); - } else { - pv = all_pv.back(); - } - } else { - if (all_pv.front()->eyes() == EYES_RIGHT) { - pv = all_pv.front(); - } else { - pv = all_pv.back(); - } - } - } else { - /* 2D; no choice to make */ - pv = all_pv.front (); - } - - _frame = pv->image ( - bind (&Log::dcp_log, _film->log().get(), _1, _2), bind (&PlayerVideo::always_rgb, _1), false, true - ); + _butler.reset( + new Butler( + _player, + Config::instance()->audio_mapping(_audio_channels), + _audio_channels, + bind(&PlayerVideo::force, _1, AV_PIX_FMT_RGB24), + false, + true + ) + ); - ImageChanged (pv); - - _position = pv->time (); - _inter_position = pv->inter_position (); - _inter_size = pv->inter_size (); - } catch (dcp::DCPReadError& e) { - /* This can happen on the following sequence of events: - * - load encrypted DCP - * - add KDM - * - DCP is examined again, which sets its "playable" flag to 1 - * - as a side effect of the exam, the viewer is updated using the old pieces - * - the DCPDecoder in the old piece gives us an encrypted frame - * - then, the pieces are re-made (but too late). - * - * I hope there's a better way to handle this ... - */ - _frame.reset (); - _position = p; - } - } else { - _frame.reset (); - _position = p; + if (!Config::instance()->sound() && !_audio.isStreamOpen()) { + _butler->disable_audio (); } - refresh_panel (); - - _last_get_accurate = accurate; -} - -void -FilmViewer::timer () -{ - DCPTime const frame = DCPTime::from_frames (1, _film->video_frame_rate ()); - - if ((_position + frame) >= _film->length ()) { - _play_button->SetValue (false); - check_play_state (); - } else { - get (_position + frame, true); - } + _closed_captions_dialog->set_film_and_butler (_film, _butler); - update_position_label (); - update_position_slider (); + resume (); } void -FilmViewer::paint_panel () +FilmViewer::set_outline_content (bool o) { - wxPaintDC dc (_panel); - - if (!_frame || !_film || !_out_size.width || !_out_size.height) { - dc.Clear (); - return; - } - - wxImage frame (_out_size.width, _out_size.height, _frame->data()[0], true); - wxBitmap frame_bitmap (frame); - dc.DrawBitmap (frame_bitmap, 0, 0); - - 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); - } - - 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); - } - - if (_outline_content->GetValue ()) { - wxPen p (wxColour (255, 0, 0), 2); - dc.SetPen (p); - dc.SetBrush (*wxTRANSPARENT_BRUSH); - dc.DrawRectangle (_inter_position.x, _inter_position.y, _inter_size.width, _inter_size.height); - } + _outline_content = o; + _video_view->update (); } void -FilmViewer::slider_moved () +FilmViewer::set_eyes (Eyes e) { - if (!_film) { - return; - } - - DCPTime t (_slider->GetValue() * _film->length().get() / 4096); - /* Ensure that we hit the end of the film at the end of the slider */ - if (t >= _film->length ()) { - t = _film->length() - DCPTime::from_frames (1, _film->video_frame_rate ()); - } - get (t, false); - update_position_label (); + _video_view->set_eyes (e); + slow_refresh (); } void -FilmViewer::panel_sized (wxSizeEvent& ev) +FilmViewer::video_view_sized () { - _panel_size.width = ev.GetSize().GetWidth(); - _panel_size.height = ev.GetSize().GetHeight(); - calculate_sizes (); - refresh (); - update_position_label (); - update_position_slider (); + if (!quick_refresh()) { + slow_refresh (); + } } void @@ -346,16 +254,16 @@ FilmViewer::calculate_sizes () Ratio const * container = _film->container (); - float const panel_ratio = _panel_size.ratio (); + float const view_ratio = float(_video_view->get()->GetSize().x) / _video_view->get()->GetSize().y; float const film_ratio = container ? container->ratio () : 1.78; - if (panel_ratio < film_ratio) { + if (view_ratio < film_ratio) { /* panel is less widscreen than the film; clamp width */ - _out_size.width = _panel_size.width; + _out_size.width = _video_view->get()->GetSize().x; _out_size.height = lrintf (_out_size.width / film_ratio); } else { /* panel is more widescreen than the film; clamp height */ - _out_size.height = _panel_size.height; + _out_size.height = _video_view->get()->GetSize().y; _out_size.width = lrintf (_out_size.height * film_ratio); } @@ -367,162 +275,393 @@ FilmViewer::calculate_sizes () } void -FilmViewer::play_clicked () +FilmViewer::suspend () { - check_play_state (); + ++_suspended; + if (_audio.isStreamRunning()) { + _audio.abortStream(); + } } void -FilmViewer::check_play_state () +FilmViewer::resume () { - if (!_film || _film->video_frame_rate() == 0) { + DCPOMATIC_ASSERT (_suspended > 0); + --_suspended; + if (_playing && !_suspended) { + if (_audio.isStreamOpen()) { + _audio.setStreamTime (_video_view->position().seconds()); + _audio.startStream (); + } + _video_view->start (); + } +} + +void +FilmViewer::start () +{ + if (!_film) { return; } - if (_play_button->GetValue()) { - _timer.Start (1000 / _film->video_frame_rate()); - } else { - _timer.Stop (); + optional v = PlaybackPermitted (); + if (v && !*v) { + /* Computer says no */ + return; + } + + if (_audio.isStreamOpen()) { + _audio.setStreamTime (_video_view->position().seconds()); + _audio.startStream (); } + + _playing = true; + _video_view->start (); + Started (position()); +} + +bool +FilmViewer::stop () +{ + if (_audio.isStreamRunning()) { + /* stop stream and discard any remaining queued samples */ + _audio.abortStream (); + } + + if (!_playing) { + return false; + } + + _playing = false; + _video_view->stop (); + Stopped (position()); + + _video_view->rethrow (); + return true; } void -FilmViewer::update_position_slider () +FilmViewer::player_change (ChangeType type, int property, bool frequent) { - if (!_film) { - _slider->SetValue (0); + if (type != CHANGE_TYPE_DONE || frequent) { return; } - DCPTime const len = _film->length (); + if (_coalesce_player_changes) { + _pending_player_changes.push_back (property); + return; + } - if (len.get ()) { - int const new_slider_position = 4096 * _position.get() / len.get(); - if (new_slider_position != _slider->GetValue()) { - _slider->SetValue (new_slider_position); - } + calculate_sizes (); + bool refreshed = false; + if ( + property == VideoContentProperty::CROP || + property == VideoContentProperty::SCALE || + property == VideoContentProperty::FADE_IN || + property == VideoContentProperty::FADE_OUT || + property == VideoContentProperty::COLOUR_CONVERSION || + property == PlayerProperty::VIDEO_CONTAINER_SIZE || + property == PlayerProperty::FILM_CONTAINER + ) { + refreshed = quick_refresh (); + } + + if (!refreshed) { + slow_refresh (); } } void -FilmViewer::update_position_label () +FilmViewer::film_change (ChangeType type, Film::Property p) { - if (!_film) { - _frame_number->SetLabel ("0"); - _timecode->SetLabel ("0:0:0.0"); + if (type != CHANGE_TYPE_DONE) { return; } - double const fps = _film->video_frame_rate (); - /* Count frame number from 1 ... not sure if this is the best idea */ - _frame_number->SetLabel (wxString::Format (wxT("%ld"), lrint (_position.seconds() * fps) + 1)); - _timecode->SetLabel (time_to_timecode (_position, fps)); + if (p == Film::AUDIO_CHANNELS) { + recreate_butler (); + } else if (p == Film::VIDEO_FRAME_RATE) { + _video_view->set_video_frame_rate (_film->video_frame_rate()); + } else if (p == Film::THREE_D) { + _video_view->set_three_d (_film->three_d()); + } } void -FilmViewer::active_jobs_changed (optional j) +FilmViewer::film_length_change () +{ + _video_view->set_length (_film->length()); +} + +/** Re-get the current frame slowly by seeking */ +void +FilmViewer::slow_refresh () +{ + seek (_video_view->position(), true); +} + +/** Try to re-get the current frame quickly by resetting the metadata + * in the PlayerVideo that we used last time. + * @return true if this was possible, false if not. + */ +bool +FilmViewer::quick_refresh () { - /* examine content is the only job which stops the viewer working */ - bool const a = !j || *j != "examine_content"; - _slider->Enable (a); - _play_button->Enable (a); + if (!_video_view || !_film) { + return true; + } + return _video_view->refresh_metadata (_film, _player->video_container_size(), _film->frame_size()); } void -FilmViewer::back_clicked () +FilmViewer::seek (shared_ptr content, ContentTime t, bool accurate) { - DCPTime p = _position - DCPTime::from_frames (1, _film->video_frame_rate ()); - if (p < DCPTime ()) { - p = DCPTime (); + optional dt = _player->content_time_to_dcp (content, t); + if (dt) { + seek (*dt, accurate); } +} + +void +FilmViewer::set_coalesce_player_changes (bool c) +{ + _coalesce_player_changes = c; - get (p, true); - update_position_label (); - update_position_slider (); + if (!c) { + BOOST_FOREACH (int i, _pending_player_changes) { + player_change (CHANGE_TYPE_DONE, i, false); + } + _pending_player_changes.clear (); + } } void -FilmViewer::forward_clicked () +FilmViewer::seek (DCPTime t, bool accurate) { - DCPTime p = _position + DCPTime::from_frames (1, _film->video_frame_rate ()); - if (p >= _film->length ()) { - p = _position; + if (!_butler) { + return; } - get (p, true); - update_position_label (); - update_position_slider (); + if (t < DCPTime ()) { + t = DCPTime (); + } + + if (t >= _film->length ()) { + t = _film->length (); + } + + suspend (); + + _closed_captions_dialog->clear (); + _butler->seek (t, accurate); + + if (!_playing) { + request_idle_display_next_frame (); + } else { + while (!_video_view->display_next_frame(false)) {} + } + + resume (); } void -FilmViewer::player_changed (bool frequent) +FilmViewer::config_changed (Config::Property p) { - if (frequent) { +#ifdef DCPOMATIC_VARIANT_SWAROOP + if (p == Config::PLAYER_BACKGROUND_IMAGE) { + _video_view->update (); return; } +#endif - if (_coalesce_player_changes) { - _pending_player_change = true; + if (p == Config::AUDIO_MAPPING) { + recreate_butler (); return; } - calculate_sizes (); - refresh (); - update_position_label (); - update_position_slider (); + if (p != Config::SOUND && p != Config::SOUND_OUTPUT) { + return; + } + + if (_audio.isStreamOpen ()) { + _audio.closeStream (); + } + + if (Config::instance()->sound() && _audio.getDeviceCount() > 0) { + unsigned int st = 0; + if (Config::instance()->sound_output()) { + while (st < _audio.getDeviceCount()) { + if (_audio.getDeviceInfo(st).name == Config::instance()->sound_output().get()) { + break; + } + ++st; + } + if (st == _audio.getDeviceCount()) { + st = _audio.getDefaultOutputDevice(); + } + } else { + st = _audio.getDefaultOutputDevice(); + } + + _audio_channels = _audio.getDeviceInfo(st).outputChannels; + + RtAudio::StreamParameters sp; + sp.deviceId = st; + sp.nChannels = _audio_channels; + sp.firstChannel = 0; + try { + _audio.openStream (&sp, 0, RTAUDIO_FLOAT32, 48000, &_audio_block_size, &rtaudio_callback, this); +#ifdef DCPOMATIC_USE_RTERROR + } catch (RtError& e) { +#else + } catch (RtAudioError& e) { +#endif + error_dialog ( + _video_view->get(), + _("Could not set up audio output. There will be no audio during the preview."), std_to_wx(e.what()) + ); + } + recreate_butler (); + + } else { + _audio_channels = 0; + recreate_butler (); + } } -void -FilmViewer::setup_sensitivity () +DCPTime +FilmViewer::uncorrected_time () const +{ + if (_audio.isStreamRunning ()) { + return DCPTime::from_seconds (const_cast(&_audio)->getStreamTime()); + } + + return _video_view->position(); +} + +optional +FilmViewer::audio_time () const +{ + if (!_audio.isStreamRunning()) { + return optional(); + } + + return DCPTime::from_seconds (const_cast(&_audio)->getStreamTime ()) - + DCPTime::from_frames (average_latency(), _film->audio_frame_rate()); +} + +DCPTime +FilmViewer::time () const { - bool const c = _film && !_film->content().empty (); + return audio_time().get_value_or(_video_view->position()); +} - _slider->Enable (c); - _back_button->Enable (c); - _forward_button->Enable (c); - _play_button->Enable (c); - _outline_content->Enable (c); - _frame_number->Enable (c); - _timecode->Enable (c); +int +FilmViewer::audio_callback (void* out_p, unsigned int frames) +{ + while (true) { + optional t = _butler->get_audio (reinterpret_cast (out_p), frames); + if (!t || DCPTime(uncorrected_time() - *t) < one_video_frame()) { + /* There was an underrun or this audio is on time; carry on */ + break; + } + /* The audio we just got was (very) late; drop it and get some more. */ + } + + boost::mutex::scoped_lock lm (_latency_history_mutex, boost::try_to_lock); + if (lm) { + _latency_history.push_back (_audio.getStreamLatency ()); + if (_latency_history.size() > static_cast (_latency_history_count)) { + _latency_history.pop_front (); + } + } - _left_eye->Enable (c && _film->three_d ()); - _right_eye->Enable (c && _film->three_d ()); + return 0; +} + +Frame +FilmViewer::average_latency () const +{ + boost::mutex::scoped_lock lm (_latency_history_mutex); + if (_latency_history.empty()) { + return 0; + } + + Frame total = 0; + BOOST_FOREACH (Frame i, _latency_history) { + total += i; + } + + return total / _latency_history.size(); } void -FilmViewer::film_changed (Film::Property p) +FilmViewer::set_dcp_decode_reduction (optional reduction) { - if (p == Film::CONTENT || p == Film::THREE_D) { - setup_sensitivity (); + _dcp_decode_reduction = reduction; + if (_player) { + _player->set_dcp_decode_reduction (reduction); } } -/** Re-get the current frame */ +optional +FilmViewer::dcp_decode_reduction () const +{ + return _dcp_decode_reduction; +} + +DCPTime +FilmViewer::one_video_frame () const +{ + return DCPTime::from_frames (1, _film ? _film->video_frame_rate() : 24); +} + +/** Open a dialog box showing our film's closed captions */ void -FilmViewer::refresh () +FilmViewer::show_closed_captions () { - get (_position, _last_get_accurate); + _closed_captions_dialog->Show(); } void -FilmViewer::set_position (DCPTime p) +FilmViewer::seek_by (DCPTime by, bool accurate) { - _position = p; - get (_position, true); - update_position_label (); - update_position_slider (); + seek (_video_view->position() + by, accurate); } void -FilmViewer::set_coalesce_player_changes (bool c) +FilmViewer::set_pad_black (bool p) { - _coalesce_player_changes = c; + _pad_black = p; +} - if (c) { - _pending_player_change = false; - } else { - if (_pending_player_change) { - player_changed (false); - } - } +/** Called when a player has finished the current film. + * May be called from a non-UI thread. + */ +void +FilmViewer::finished () +{ + emit (boost::bind(&FilmViewer::ui_finished, this)); } + +/** Called by finished() in the UI thread */ +void +FilmViewer::ui_finished () +{ + stop (); + Finished (); +} + +int +FilmViewer::dropped () const +{ + return _video_view->dropped (); +} + +int +FilmViewer::gets () const +{ + return _video_view->gets (); +} + +