X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Fwx%2Ffilm_viewer.cc;h=d521e5385a2559ceef808faff659bb41f15c2e8e;hb=c76b1fd7fe41a7e371ae1fe1dad21c87a19839f1;hp=311ec734c45734aff0a5dab1295a8fc5e3178a9c;hpb=ae15eeca8588c6928d7671894db98c2e289fa601;p=dcpomatic.git diff --git a/src/wx/film_viewer.cc b/src/wx/film_viewer.cc index 311ec734c..9dbb0091a 100644 --- a/src/wx/film_viewer.cc +++ b/src/wx/film_viewer.cc @@ -1,19 +1,20 @@ /* - Copyright (C) 2012-2014 Carl Hetherington + Copyright (C) 2012-2019 Carl Hetherington - This program is free software; you can redistribute it and/or modify + This file is part of DCP-o-matic. + + DCP-o-matic is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. - This program is distributed in the hope that it will be useful, + DCP-o-matic is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + along with DCP-o-matic. If not, see . */ @@ -21,6 +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" @@ -34,9 +42,14 @@ #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 +} #include #include #include @@ -54,243 +67,295 @@ using std::exception; using boost::shared_ptr; 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"))) - , _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"))) - , _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) + , _dropped (0) + , _closed_captions_dialog (new ClosedCaptionsDialog(p, this)) + , _outline_content (false) + , _eyes (EYES_LEFT) + , _pad_black (false) +#ifdef DCPOMATIC_VARIANT_SWAROOP + , _background_image (false) #endif - - _panel->SetBackgroundStyle (wxBG_STYLE_PAINT); - - _v_sizer = new wxBoxSizer (wxVERTICAL); - SetSizer (_v_sizer); - - _v_sizer->Add (_panel, 1, wxEXPAND); - - _v_sizer->Add (_outline_content, 0, wxALL, DCPOMATIC_SIZER_GAP); + , _state_timer ("viewer") + , _gets (0) + , _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; + } - wxBoxSizer* h_sizer = new wxBoxSizer (wxHORIZONTAL); + _video_view->Sized.connect (boost::bind(&FilmViewer::video_view_sized, this)); - wxBoxSizer* time_sizer = new wxBoxSizer (wxVERTICAL); - time_sizer->Add (_frame_number, 0, wxEXPAND); - time_sizer->Add (_timecode, 0, wxEXPAND); + set_film (shared_ptr ()); - 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); + _config_changed_connection = Config::instance()->Changed.connect (bind (&FilmViewer::config_changed, this, _1)); + config_changed (Config::SOUND_OUTPUT); +} - _v_sizer->Add (h_sizer, 0, wxEXPAND | wxALL, 6); +FilmViewer::~FilmViewer () +{ + stop (); +} - _frame_number->SetMinSize (wxSize (84, -1)); - _back_button->SetMinSize (wxSize (32, -1)); - _forward_button->SetMinSize (wxSize (32, -1)); +/** Ask for ::get() to be called next time we are idle */ +void +FilmViewer::request_idle_get () +{ + if (_idle_get) { + return; + } - _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)); - _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)); + _idle_get = true; + DCPOMATIC_ASSERT (signal_manager); + signal_manager->when_idle (boost::bind(&FilmViewer::idle_handler, this)); +} - set_film (shared_ptr ()); - - JobManager::instance()->ActiveJobsChanged.connect ( - bind (&FilmViewer::active_jobs_changed, this, _1) - ); +void +FilmViewer::idle_handler () +{ + if (!_idle_get) { + return; + } - setup_sensitivity (); + if (get(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 -FilmViewer::set_film (shared_ptr f) +FilmViewer::set_film (shared_ptr film) { - if (_film == f) { + if (_film == film) { return; } - _film = f; + _film = film; + _video_position = DCPTime (); + _player_video.first.reset (); + _player_video.second = DCPTime (); + + _video_view->set_image (shared_ptr()); + _closed_captions_dialog->clear (); - _frame.reset (); - - _slider->SetValue (0); - set_position_text (); - if (!_film) { + _player.reset (); + recreate_butler (); + refresh_view (); return; } try { - _player = f->make_player (); - } catch (bad_alloc) { - error_dialog (this, _("There is not enough free memory to do that.")); + _player.reset (new Player (_film, _film->playlist ())); + _player->set_fast (); + 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; } - - _film_connection = _film->Changed.connect (boost::bind (&FilmViewer::film_changed, this, _1)); - _player_connection = _player->Changed.connect (boost::bind (&FilmViewer::player_changed, this, _1)); + _player->set_always_burn_open_subtitles (); + _player->set_play_referenced (); - calculate_sizes (); - get (_position, _last_get_accurate); + _film->Change.connect (boost::bind (&FilmViewer::film_change, this, _1, _2)); + _player->Change.connect (boost::bind (&FilmViewer::player_change, this, _1, _2, _3)); - setup_sensitivity (); -} + /* Keep about 1 second's worth of history samples */ + _latency_history_count = _film->audio_frame_rate() / _audio_block_size; -void -FilmViewer::refresh_panel () -{ - _panel->Refresh (); - _panel->Update (); + recreate_butler (); + + calculate_sizes (); + slow_refresh (); } void -FilmViewer::get (DCPTime p, bool accurate) +FilmViewer::recreate_butler () { - if (!_player) { + suspend (); + _butler.reset (); + + if (!_film) { + resume (); return; } - list > pvf; - try { - pvf = _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 (!pvf.empty ()) { - try { - _frame = pvf.front()->image (PIX_FMT_RGB24, true, boost::bind (&Log::dcp_log, _film->log().get(), _1, _2)); + _butler.reset( + new Butler( + _player, + Config::instance()->audio_mapping(_audio_channels), + _audio_channels, + bind(&PlayerVideo::force, _1, AV_PIX_FMT_RGB24), + false, + true + ) + ); - dcp::YUVToRGB yuv_to_rgb = dcp::YUV_TO_RGB_REC601; - if (pvf.front()->colour_conversion()) { - yuv_to_rgb = pvf.front()->colour_conversion().get().yuv_to_rgb(); - } - - _frame = _frame->scale (_frame->size(), yuv_to_rgb, PIX_FMT_RGB24, false); - _position = pvf.front()->time (); - _inter_position = pvf.front()->inter_position (); - _inter_size = pvf.front()->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 (); } - set_position_text (); - refresh_panel (); + _closed_captions_dialog->set_film_and_butler (_film, _butler); - _last_get_accurate = accurate; + resume (); } void -FilmViewer::timer () +FilmViewer::refresh_view () { - get (_position + DCPTime::from_frames (1, _film->video_frame_rate ()), true); - - DCPTime const len = _film->length (); + _state_timer.set ("update-view"); + _video_view->update (); + _state_timer.unset (); +} - if (len.get ()) { - int const new_slider_position = 4096 * _position.get() / len.get(); - if (new_slider_position != _slider->GetValue()) { - _slider->SetValue (new_slider_position); +/** Try to get a frame from the butler and display it. + * @param lazy true to return false quickly if no video is available quickly (i.e. we are waiting for the butler). + * false to ask the butler to block until it has video (unless it is suspended). + * @return true on success, false if we did nothing because it would have taken too long. + */ +bool +FilmViewer::get (bool lazy) +{ + DCPOMATIC_ASSERT (_butler); + ++_gets; + + do { + Butler::Error e; + _player_video = _butler->get_video (!lazy, &e); + if (!_player_video.first && e == Butler::AGAIN) { + if (lazy) { + /* No video available; return saying we failed */ + return false; + } else { + /* Player was suspended; come back later */ + signal_manager->when_idle (boost::bind(&FilmViewer::get, this, false)); + return false; + } } + } while ( + _player_video.first && + _film->three_d() && + _eyes != _player_video.first->eyes() && + _player_video.first->eyes() != EYES_BOTH + ); + + try { + _butler->rethrow (); + } catch (DecodeError& e) { + error_dialog (_video_view->get(), e.what()); } -} + display_player_video (); + PositionChanged (); + + return true; +} void -FilmViewer::paint_panel () +FilmViewer::display_player_video () { - wxPaintDC dc (_panel); + if (!_player_video.first) { + _video_view->set_image (shared_ptr()); + refresh_view (); + return; + } - if (!_frame || !_film || !_out_size.width || !_out_size.height) { - dc.Clear (); + if (_playing && !_suspended && (time() - _player_video.second) > one_video_frame()) { + /* Too late; just drop this frame before we try to get its image (which will be the time-consuming + part if this frame is J2K). + */ + _video_position = _player_video.second; + ++_dropped; return; } - wxImage frame (_out_size.width, _out_size.height, _frame->data()[0], true); - wxBitmap frame_bitmap (frame); - dc.DrawBitmap (frame_bitmap, 0, 0); + /* In an ideal world, what we would do here is: + * + * 1. convert to XYZ exactly as we do in the DCP creation path. + * 2. convert back to RGB for the preview display, compensating + * for the monitor etc. etc. + * + * but this is inefficient if the source is RGB. Since we don't + * (currently) care too much about the precise accuracy of the preview's + * colour mapping (and we care more about its speed) we try to short- + * circuit this "ideal" situation in some cases. + * + * The content's specified colour conversion indicates the colourspace + * which the content is in (according to the user). + * + * PlayerVideo::image (bound to PlayerVideo::force) will take the source + * image and convert it (from whatever the user has said it is) to RGB. + */ + + _state_timer.set ("get image"); + + _video_view->set_image ( + _player_video.first->image(bind(&PlayerVideo::force, _1, AV_PIX_FMT_RGB24), false, true) + ); - 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); - } + _state_timer.set ("ImageChanged"); + ImageChanged (_player_video.first); + _state_timer.unset (); - 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); - } + _video_position = _player_video.second; + _inter_position = _player_video.first->inter_position (); + _inter_size = _player_video.first->inter_size (); - 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); - } + refresh_view (); + + _closed_captions_dialog->update (time()); } void -FilmViewer::slider_moved () +FilmViewer::set_outline_content (bool o) { - 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); + _outline_content = o; + refresh_view (); } void -FilmViewer::panel_sized (wxSizeEvent& ev) +FilmViewer::set_eyes (Eyes e) { - _panel_size.width = ev.GetSize().GetWidth(); - _panel_size.height = ev.GetSize().GetHeight(); + _eyes = e; + slow_refresh (); +} +void +FilmViewer::video_view_sized () +{ calculate_sizes (); - get (_position, _last_get_accurate); + if (!quick_refresh()) { + slow_refresh (); + } + PositionChanged (); } void @@ -301,18 +366,18 @@ 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.height = rint (_out_size.width / film_ratio); + _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.width = rint (_out_size.height * film_ratio); + _out_size.height = _video_view->get()->GetSize().y; + _out_size.width = lrintf (_out_size.height * film_ratio); } /* Catch silly values */ @@ -323,115 +388,347 @@ FilmViewer::calculate_sizes () } void -FilmViewer::play_clicked () +FilmViewer::suspend () +{ + ++_suspended; + if (_audio.isStreamRunning()) { + _audio.abortStream(); + } +} + +void +FilmViewer::resume () { - check_play_state (); + --_suspended; + if (_playing && !_suspended) { + if (_audio.isStreamOpen()) { + _audio.setStreamTime (_video_position.seconds()); + _audio.startStream (); + } + timer (); + } } void -FilmViewer::check_play_state () +FilmViewer::start () { - if (!_film || _film->video_frame_rate() == 0) { + 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_position.seconds()); + _audio.startStream (); + } + + _playing = true; + _dropped = 0; + _video_view->timer (); + Started (position()); +} + +bool +FilmViewer::stop () +{ + if (_audio.isStreamRunning()) { + /* stop stream and discard any remaining queued samples */ + _audio.abortStream (); + } + + if (!_playing) { + return false; } + + _playing = false; + Stopped (position()); + return true; } void -FilmViewer::set_position_text () +FilmViewer::player_change (ChangeType type, int property, bool frequent) { - if (!_film) { - _frame_number->SetLabel ("0"); - _timecode->SetLabel ("0:0:0.0"); + if (type != CHANGE_TYPE_DONE || frequent) { 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("%d"), int (rint (_position.seconds() * fps)) + 1)); - - double w = _position.seconds (); - 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)); + + if (_coalesce_player_changes) { + _pending_player_changes.push_back (property); + return; + } + + 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 (); + } + PositionChanged (); } void -FilmViewer::active_jobs_changed (bool a) +FilmViewer::film_change (ChangeType type, Film::Property p) { - 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; - } + if (type == CHANGE_TYPE_DONE && p == Film::AUDIO_CHANNELS) { + recreate_butler (); } - - _slider->Enable (!a); - _play_button->Enable (!a); } +/** Re-get the current frame slowly by seeking */ void -FilmViewer::back_clicked () +FilmViewer::slow_refresh () { - DCPTime p = _position - DCPTime::from_frames (1, _film->video_frame_rate ()); - if (p < DCPTime ()) { - p = DCPTime (); + seek (_video_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 () +{ + if (!_player_video.first) { + return false; + } + + if (!_player_video.first->reset_metadata (_film, _player->video_container_size(), _film->frame_size())) { + return false; } - get (p, true); + display_player_video (); + return true; +} + +void +FilmViewer::seek (shared_ptr content, ContentTime t, bool accurate) +{ + optional dt = _player->content_time_to_dcp (content, t); + if (dt) { + seek (*dt, accurate); + } } void -FilmViewer::forward_clicked () +FilmViewer::set_coalesce_player_changes (bool c) { - get (_position + DCPTime::from_frames (1, _film->video_frame_rate ()), true); + _coalesce_player_changes = c; + + if (!c) { + BOOST_FOREACH (int i, _pending_player_changes) { + player_change (CHANGE_TYPE_DONE, i, false); + } + _pending_player_changes.clear (); + } } void -FilmViewer::player_changed (bool frequent) +FilmViewer::seek (DCPTime t, bool accurate) { - if (frequent) { + if (!_butler) { return; } - calculate_sizes (); - get (_position, _last_get_accurate); + 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_get (); + } else { + /* Make sure we get a frame so that _video_position is set up before we resume */ + while (!get(true)) {} + } + + resume (); } void -FilmViewer::setup_sensitivity () +FilmViewer::config_changed (Config::Property p) +{ +#ifdef DCPOMATIC_VARIANT_SWAROOP + if (p == Config::PLAYER_BACKGROUND_IMAGE) { + refresh_view (); + return; + } +#endif + + if (p == Config::AUDIO_MAPPING) { + recreate_butler (); + return; + } + + 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 (); + } +} + +DCPTime +FilmViewer::uncorrected_time () const { - bool const c = _film && !_film->content().empty (); - - _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); + if (_audio.isStreamRunning ()) { + return DCPTime::from_seconds (const_cast(&_audio)->getStreamTime()); + } + + return _video_position; +} + +DCPTime +FilmViewer::time () const +{ + if (_audio.isStreamRunning ()) { + return DCPTime::from_seconds (const_cast(&_audio)->getStreamTime ()) - + DCPTime::from_frames (average_latency(), _film->audio_frame_rate()); + } + + return _video_position; +} + +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 (); + } + } + + 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) { - setup_sensitivity (); + _dcp_decode_reduction = reduction; + if (_player) { + _player->set_dcp_decode_reduction (reduction); } } + +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::show_closed_captions () +{ + _closed_captions_dialog->Show(); +} + +void +FilmViewer::seek_by (DCPTime by, bool accurate) +{ + seek (_video_position + by, accurate); +} + +void +FilmViewer::set_pad_black (bool p) +{ + _pad_black = p; +}