/*
- Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net>
- 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 <http://www.gnu.org/licenses/>.
*/
* @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"
#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 <libavutil/pixfmt.h>
+}
#include <dcp/exceptions.h>
#include <wx/tglbtn.h>
#include <iostream>
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<FilmViewer*>(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)
+ , _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);
-
- _v_sizer->Add (_outline_content, 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<Film> ());
- _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));
- _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<Film> ());
+ _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, _1)
- );
+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
_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));
- } 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;
}
- /* 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_always_burn_open_subtitles ();
+ _player->set_play_referenced ();
+
+ _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));
- _film_connection = _film->Changed.connect (boost::bind (&FilmViewer::film_changed, this, _1));
+ /* Keep about 1 second's worth of history samples */
+ _latency_history_count = _film->audio_frame_rate() / _audio_block_size;
- _player_connection = _player->Changed.connect (boost::bind (&FilmViewer::player_changed, this, _1));
+ recreate_butler ();
calculate_sizes ();
- get (_position, _last_get_accurate);
+ slow_refresh ();
+}
+
+void
+FilmViewer::recreate_butler ()
+{
+ suspend ();
+ _butler.reset ();
+
+ if (!_film) {
+ resume ();
+ return;
+ }
+
+ _butler.reset(
+ new Butler(
+ _player,
+ Config::instance()->audio_mapping(_audio_channels),
+ _audio_channels,
+ bind(&PlayerVideo::force, _1, AV_PIX_FMT_RGB24),
+ false,
+ true
+ )
+ );
+
+ if (!Config::instance()->sound() && !_audio.isStreamOpen()) {
+ _butler->disable_audio ();
+ }
+
+ _closed_captions_dialog->set_film_and_butler (_film, _butler);
- setup_sensitivity ();
+ resume ();
}
void
-FilmViewer::refresh_panel ()
+FilmViewer::set_outline_content (bool o)
{
- _panel->Refresh ();
- _panel->Update ();
+ _outline_content = o;
+ _video_view->update ();
}
void
-FilmViewer::get (DCPTime p, bool accurate)
+FilmViewer::set_eyes (Eyes e)
{
- if (!_player) {
- return;
+ _video_view->set_eyes (e);
+ slow_refresh ();
+}
+
+void
+FilmViewer::video_view_sized ()
+{
+ calculate_sizes ();
+ if (!quick_refresh()) {
+ slow_refresh ();
}
+}
- list<shared_ptr<PlayerVideo> > 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()));
+void
+FilmViewer::calculate_sizes ()
+{
+ if (!_film || !_player) {
+ return;
}
- if (!pvf.empty ()) {
- try {
- _frame = pvf.front()->image (PIX_FMT_RGB24, boost::bind (&Log::dcp_log, _film->log().get(), _1, _2));
+ Ratio const * container = _film->container ();
- 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();
- }
+ float const view_ratio = float(_video_view->get()->GetSize().x) / _video_view->get()->GetSize().y;
+ float const film_ratio = container ? container->ratio () : 1.78;
- _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;
- }
+ if (view_ratio < film_ratio) {
+ /* panel is less widscreen than the film; clamp width */
+ _out_size.width = _video_view->get()->GetSize().x;
+ _out_size.height = lrintf (_out_size.width / film_ratio);
} else {
- _frame.reset ();
- _position = p;
+ /* panel is more widescreen than the film; clamp height */
+ _out_size.height = _video_view->get()->GetSize().y;
+ _out_size.width = lrintf (_out_size.height * film_ratio);
}
- refresh_panel ();
+ /* Catch silly values */
+ _out_size.width = max (64, _out_size.width);
+ _out_size.height = max (64, _out_size.height);
- _last_get_accurate = accurate;
+ _player->set_video_container_size (_out_size);
}
void
-FilmViewer::timer ()
+FilmViewer::suspend ()
{
- 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);
+ ++_suspended;
+ if (_audio.isStreamRunning()) {
+ _audio.abortStream();
}
-
- update_position_label ();
- update_position_slider ();
}
void
-FilmViewer::paint_panel ()
+FilmViewer::resume ()
{
- wxPaintDC dc (_panel);
+ DCPOMATIC_ASSERT (_suspended > 0);
+ --_suspended;
+ if (_playing && !_suspended) {
+ if (_audio.isStreamOpen()) {
+ _audio.setStreamTime (_video_view->position().seconds());
+ _audio.startStream ();
+ }
+ _video_view->start ();
+ }
+}
- if (!_frame || !_film || !_out_size.width || !_out_size.height) {
- dc.Clear ();
+void
+FilmViewer::start ()
+{
+ if (!_film) {
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);
+ optional<bool> v = PlaybackPermitted ();
+ if (v && !*v) {
+ /* Computer says no */
+ return;
}
- 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 (_audio.isStreamOpen()) {
+ _audio.setStreamTime (_video_view->position().seconds());
+ _audio.startStream ();
}
- 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);
- }
+ _playing = true;
+ _video_view->start ();
+ Started (position());
}
-void
-FilmViewer::slider_moved ()
+bool
+FilmViewer::stop ()
{
- if (!_film) {
- return;
+ if (_audio.isStreamRunning()) {
+ /* stop stream and discard any remaining queued samples */
+ _audio.abortStream ();
}
- 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 ());
+ if (!_playing) {
+ return false;
}
- get (t, false);
- update_position_label ();
+
+ _playing = false;
+ _video_view->stop ();
+ Stopped (position());
+
+ _video_view->rethrow ();
+ return true;
}
void
-FilmViewer::panel_sized (wxSizeEvent& ev)
+FilmViewer::player_change (ChangeType type, int property, bool frequent)
{
- _panel_size.width = ev.GetSize().GetWidth();
- _panel_size.height = ev.GetSize().GetHeight();
+ if (type != CHANGE_TYPE_DONE || frequent) {
+ return;
+ }
+
+ if (_coalesce_player_changes) {
+ _pending_player_changes.push_back (property);
+ return;
+ }
calculate_sizes ();
- get (_position, _last_get_accurate);
- update_position_label ();
- update_position_slider ();
+ 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::calculate_sizes ()
+FilmViewer::film_change (ChangeType type, Film::Property p)
{
- if (!_film || !_player) {
+ if (type != CHANGE_TYPE_DONE) {
return;
}
- Ratio const * container = _film->container ();
+ 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());
+ }
+}
- float const panel_ratio = _panel_size.ratio ();
- float const film_ratio = container ? container->ratio () : 1.78;
+void
+FilmViewer::film_length_change ()
+{
+ _video_view->set_length (_film->length());
+}
- if (panel_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);
- } 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);
- }
+/** Re-get the current frame slowly by seeking */
+void
+FilmViewer::slow_refresh ()
+{
+ seek (_video_view->position(), true);
+}
- /* Catch silly values */
- _out_size.width = max (64, _out_size.width);
- _out_size.height = max (64, _out_size.height);
+/** 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 (!_video_view || !_film) {
+ return true;
+ }
+ return _video_view->refresh_metadata (_film, _player->video_container_size(), _film->frame_size());
+}
- _player->set_video_container_size (_out_size);
+void
+FilmViewer::seek (shared_ptr<Content> content, ContentTime t, bool accurate)
+{
+ optional<DCPTime> dt = _player->content_time_to_dcp (content, t);
+ if (dt) {
+ seek (*dt, accurate);
+ }
}
void
-FilmViewer::play_clicked ()
+FilmViewer::set_coalesce_player_changes (bool c)
{
- check_play_state ();
+ _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::check_play_state ()
+FilmViewer::seek (DCPTime t, bool accurate)
{
- if (!_film || _film->video_frame_rate() == 0) {
+ if (!_butler) {
return;
}
- if (_play_button->GetValue()) {
- _timer.Start (1000 / _film->video_frame_rate());
+ 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 {
- _timer.Stop ();
+ while (!_video_view->display_next_frame(false)) {}
}
+
+ resume ();
}
void
-FilmViewer::update_position_slider ()
+FilmViewer::config_changed (Config::Property p)
{
- if (!_film) {
- _slider->SetValue (0);
+#ifdef DCPOMATIC_VARIANT_SWAROOP
+ if (p == Config::PLAYER_BACKGROUND_IMAGE) {
+ _video_view->update ();
+ return;
+ }
+#endif
+
+ if (p == Config::AUDIO_MAPPING) {
+ recreate_butler ();
+ return;
+ }
+
+ if (p != Config::SOUND && p != Config::SOUND_OUTPUT) {
return;
}
- DCPTime const len = _film->length ();
+ if (_audio.isStreamOpen ()) {
+ _audio.closeStream ();
+ }
- if (len.get ()) {
- int const new_slider_position = 4096 * _position.get() / len.get();
- if (new_slider_position != _slider->GetValue()) {
- _slider->SetValue (new_slider_position);
+ 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::update_position_label ()
+DCPTime
+FilmViewer::uncorrected_time () const
{
- if (!_film) {
- _frame_number->SetLabel ("0");
- _timecode->SetLabel ("0:0:0.0");
- return;
+ if (_audio.isStreamRunning ()) {
+ return DCPTime::from_seconds (const_cast<RtAudio*>(&_audio)->getStreamTime());
}
- 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));
- _timecode->SetLabel (time_to_timecode (_position, fps));
+ return _video_view->position();
}
-void
-FilmViewer::active_jobs_changed (bool a)
+optional<DCPTime>
+FilmViewer::audio_time () const
{
- 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 (!_audio.isStreamRunning()) {
+ return optional<DCPTime>();
+ }
+
+ return DCPTime::from_seconds (const_cast<RtAudio*>(&_audio)->getStreamTime ()) -
+ DCPTime::from_frames (average_latency(), _film->audio_frame_rate());
+}
+
+DCPTime
+FilmViewer::time () const
+{
+ return audio_time().get_value_or(_video_view->position());
+}
- if (i == jobs.end() || (*i)->finished()) {
- /* no examine content job running, so we're ok to use the viewer */
- a = false;
+int
+FilmViewer::audio_callback (void* out_p, unsigned int frames)
+{
+ while (true) {
+ optional<DCPTime> t = _butler->get_audio (reinterpret_cast<float*> (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. */
}
- _slider->Enable (!a);
- _play_button->Enable (!a);
+ 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<size_t> (_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::back_clicked ()
+FilmViewer::set_dcp_decode_reduction (optional<int> reduction)
{
- DCPTime p = _position - DCPTime::from_frames (1, _film->video_frame_rate ());
- if (p < DCPTime ()) {
- p = DCPTime ();
+ _dcp_decode_reduction = reduction;
+ if (_player) {
+ _player->set_dcp_decode_reduction (reduction);
}
+}
- get (p, true);
- update_position_label ();
- update_position_slider ();
+optional<int>
+FilmViewer::dcp_decode_reduction () const
+{
+ return _dcp_decode_reduction;
}
-void
-FilmViewer::forward_clicked ()
+DCPTime
+FilmViewer::one_video_frame () const
{
- get (_position + DCPTime::from_frames (1, _film->video_frame_rate ()), true);
- update_position_label ();
- update_position_slider ();
+ return DCPTime::from_frames (1, _film ? _film->video_frame_rate() : 24);
}
+/** Open a dialog box showing our film's closed captions */
void
-FilmViewer::player_changed (bool frequent)
+FilmViewer::show_closed_captions ()
{
- if (frequent) {
- return;
- }
+ _closed_captions_dialog->Show();
+}
- calculate_sizes ();
- get (_position, _last_get_accurate);
- update_position_label ();
- update_position_slider ();
+void
+FilmViewer::seek_by (DCPTime by, bool accurate)
+{
+ seek (_video_view->position() + by, accurate);
}
void
-FilmViewer::setup_sensitivity ()
+FilmViewer::set_pad_black (bool p)
{
- bool const c = _film && !_film->content().empty ();
+ _pad_black = p;
+}
- _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);
+/** 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::film_changed (Film::Property p)
+FilmViewer::ui_finished ()
{
- if (p == Film::CONTENT) {
- setup_sensitivity ();
- }
+ stop ();
+ Finished ();
+}
+
+int
+FilmViewer::dropped () const
+{
+ return _video_view->dropped ();
+}
+
+int
+FilmViewer::gets () const
+{
+ return _video_view->gets ();
}
+
+
projects / dcpomatic.git / blobdiff