/*
- Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2017 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 "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"
+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;
-FilmViewer::FilmViewer (wxWindow* p)
+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, bool outline_content, bool jump_to_selected)
: wxPanel (p)
, _panel (new wxPanel (this))
- , _outline_content (new wxCheckBox (this, wxID_ANY, _("Outline content")))
+ , _outline_content (0)
+ , _left_eye (new wxRadioButton (this, wxID_ANY, _("Left eye"), wxDefaultPosition, wxDefaultSize, wxRB_GROUP))
+ , _right_eye (new wxRadioButton (this, wxID_ANY, _("Right eye")))
+ , _jump_to_selected (0)
, _slider (new wxSlider (this, wxID_ANY, 0, 0, 4096))
+ , _rewind_button (new wxButton (this, wxID_ANY, wxT("|<")))
, _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)
+ , _coalesce_player_changes (false)
+ , _pending_player_change (false)
+ , _audio (DCPOMATIC_RTAUDIO_API)
+ , _audio_channels (0)
+ , _audio_block_size (1024)
+ , _playing (false)
+ , _latency_history_count (0)
+ , _dropped (0)
{
#ifndef __WXOSX__
_panel->SetDoubleBuffered (true);
_v_sizer->Add (_panel, 1, wxEXPAND);
- _v_sizer->Add (_outline_content, 0, wxALL, DCPOMATIC_SIZER_GAP);
+ wxBoxSizer* view_options = new wxBoxSizer (wxHORIZONTAL);
+ if (outline_content) {
+ _outline_content = new wxCheckBox (this, wxID_ANY, _("Outline content"));
+ 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);
+ if (jump_to_selected) {
+ _jump_to_selected = new wxCheckBox (this, wxID_ANY, _("Jump to selected content"));
+ view_options->Add (_jump_to_selected, 0, wxLEFT | wxRIGHT, DCPOMATIC_SIZER_GAP);
+ }
+ _v_sizer->Add (view_options, 0, wxALL, DCPOMATIC_SIZER_GAP);
wxBoxSizer* h_sizer = new wxBoxSizer (wxHORIZONTAL);
time_sizer->Add (_frame_number, 0, wxEXPAND);
time_sizer->Add (_timecode, 0, wxEXPAND);
+ h_sizer->Add (_rewind_button, 0, wxALL, 2);
h_sizer->Add (_back_button, 0, wxALL, 2);
h_sizer->Add (time_sizer, 0, wxEXPAND);
h_sizer->Add (_forward_button, 0, wxALL, 2);
_v_sizer->Add (h_sizer, 0, wxEXPAND | wxALL, 6);
_frame_number->SetMinSize (wxSize (84, -1));
+ _rewind_button->SetMinSize (wxSize (32, -1));
_back_button->SetMinSize (wxSize (32, -1));
_forward_button->SetMinSize (wxSize (32, -1));
- _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));
+ _panel->Bind (wxEVT_PAINT, boost::bind (&FilmViewer::paint_panel, this));
+ _panel->Bind (wxEVT_SIZE, boost::bind (&FilmViewer::panel_sized, this, _1));
+ if (_outline_content) {
+ _outline_content->Bind (wxEVT_CHECKBOX, boost::bind (&FilmViewer::refresh_panel, this));
+ }
+ _left_eye->Bind (wxEVT_RADIOBUTTON, boost::bind (&FilmViewer::refresh, this));
+ _right_eye->Bind (wxEVT_RADIOBUTTON, boost::bind (&FilmViewer::refresh, this));
+ _slider->Bind (wxEVT_SCROLL_THUMBTRACK, boost::bind (&FilmViewer::slider_moved, this, false));
+ _slider->Bind (wxEVT_SCROLL_PAGEUP, boost::bind (&FilmViewer::slider_moved, this, false));
+ _slider->Bind (wxEVT_SCROLL_PAGEDOWN, boost::bind (&FilmViewer::slider_moved, this, false));
+ _slider->Bind (wxEVT_SCROLL_CHANGED, boost::bind (&FilmViewer::slider_moved, this, true));
+ _play_button->Bind (wxEVT_TOGGLEBUTTON, boost::bind (&FilmViewer::play_clicked, this));
+ _timer.Bind (wxEVT_TIMER, boost::bind (&FilmViewer::timer, this));
+ _rewind_button->Bind (wxEVT_LEFT_DOWN, boost::bind (&FilmViewer::rewind_clicked, this, _1));
+ _back_button->Bind (wxEVT_LEFT_DOWN, boost::bind (&FilmViewer::back_clicked, this, _1));
+ _forward_button->Bind (wxEVT_LEFT_DOWN, boost::bind (&FilmViewer::forward_clicked, this, _1));
+ _frame_number->Bind (wxEVT_LEFT_DOWN, boost::bind (&FilmViewer::frame_number_clicked, this));
+ _timecode->Bind (wxEVT_LEFT_DOWN, boost::bind (&FilmViewer::timecode_clicked, this));
+ if (_jump_to_selected) {
+ _jump_to_selected->Bind (wxEVT_CHECKBOX, boost::bind (&FilmViewer::jump_to_selected_clicked, this));
+ _jump_to_selected->SetValue (Config::instance()->jump_to_selected ());
+ }
set_film (shared_ptr<Film> ());
JobManager::instance()->ActiveJobsChanged.connect (
- bind (&FilmViewer::active_jobs_changed, this, _1)
+ bind (&FilmViewer::active_jobs_changed, this, _2)
);
setup_sensitivity ();
+
+ _config_changed_connection = Config::instance()->Changed.connect (bind (&FilmViewer::config_changed, this, _1));
+ config_changed (Config::SOUND_OUTPUT);
+}
+
+FilmViewer::~FilmViewer ()
+{
+ stop ();
}
void
update_position_label ();
if (!_film) {
+ _player.reset ();
+ recreate_butler ();
+ _frame.reset ();
+ refresh_panel ();
return;
}
try {
- _player.reset (new Player (_film));
+ _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 (this, _("There is not enough free memory to do that."));
_film.reset ();
in the preview.
*/
_player->set_always_burn_subtitles (true);
+ _player->set_play_referenced ();
+
+ _film->Changed.connect (boost::bind (&FilmViewer::film_changed, this, _1));
+ _player->Changed.connect (boost::bind (&FilmViewer::player_changed, this, _1));
- _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);
+ refresh ();
setup_sensitivity ();
}
+void
+FilmViewer::recreate_butler ()
+{
+ bool const was_running = stop ();
+ _butler.reset ();
+
+ if (!_film) {
+ return;
+ }
+
+ AudioMapping map = AudioMapping (_film->audio_channels(), _audio_channels);
+
+ if (_audio_channels != 2 || _film->audio_channels() < 3) {
+ for (int i = 0; i < min (_film->audio_channels(), _audio_channels); ++i) {
+ map.set (i, i, 1);
+ }
+ } else {
+ /* Special case: stereo output, at least 3 channel input, map L+R to L/R and
+ C to both, all 3dB down.
+ */
+ map.set (0, 0, 1 / sqrt(2)); // L -> L
+ map.set (1, 1, 1 / sqrt(2)); // R -> R
+ map.set (2, 0, 1 / sqrt(2)); // C -> L
+ map.set (2, 1, 1 / sqrt(2)); // C -> R
+ }
+
+ _butler.reset (new Butler (_player, _film->log(), map, _audio_channels));
+ if (!Config::instance()->sound() && !_audio.isStreamOpen()) {
+ _butler->disable_audio ();
+ }
+
+ if (was_running) {
+ start ();
+ }
+}
+
void
FilmViewer::refresh_panel ()
{
}
void
-FilmViewer::get (DCPTime p, bool accurate)
+FilmViewer::get ()
{
- if (!_player) {
+ DCPOMATIC_ASSERT (_butler);
+
+ pair<shared_ptr<PlayerVideo>, DCPTime> video;
+ do {
+ video = _butler->get_video ();
+ } while (
+ _film->three_d() &&
+ ((_left_eye->GetValue() && video.first->eyes() == EYES_RIGHT) || (_right_eye->GetValue() && video.first->eyes() == EYES_LEFT))
+ );
+
+ _butler->rethrow ();
+
+ if (!video.first) {
+ _frame.reset ();
+ refresh_panel ();
return;
}
- 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()));
+ if (_playing && (time() - 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 = video.second;
+ ++_dropped;
+ return;
}
- if (!pvf.empty ()) {
- try {
- _frame = pvf.front()->image (PIX_FMT_RGB24, boost::bind (&Log::dcp_log, _film->log().get(), _1, _2));
+ /* 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::always_rgb) will take the source
+ * image and convert it (from whatever the user has said it is) to RGB.
+ */
+
+ _frame = video.first->image (
+ bind (&Log::dcp_log, _film->log().get(), _1, _2),
+ bind (&PlayerVideo::always_rgb, _1),
+ 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();
- }
+ ImageChanged (video.first);
- _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;
- }
+ _video_position = video.second;
+ _inter_position = video.first->inter_position ();
+ _inter_size = video.first->inter_size ();
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);
+ if (!_film || !_playing) {
+ return;
}
+ get ();
update_position_label ();
update_position_slider ();
+ DCPTime const next = _video_position + one_video_frame();
+
+ if (next >= _film->length()) {
+ stop ();
+ }
+
+ _timer.Start (max ((next.seconds() - time().seconds()) * 1000, 1.0), wxTIMER_ONE_SHOT);
+
+ if (_butler) {
+ _butler->rethrow ();
+ }
}
void
dc.DrawRectangle (0, _out_size.height, _panel_size.width, _panel_size.height - _out_size.height);
}
- if (_outline_content->GetValue ()) {
+ if (_outline_content && _outline_content->GetValue ()) {
wxPen p (wxColour (255, 0, 0), 2);
dc.SetPen (p);
dc.SetBrush (*wxTRANSPARENT_BRUSH);
}
void
-FilmViewer::slider_moved ()
+FilmViewer::slider_moved (bool update_slider)
{
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 ());
+ t = _film->length() - one_video_frame();
}
- get (t, false);
+ seek (t, false);
update_position_label ();
+ if (update_slider) {
+ update_position_slider ();
+ }
}
void
_panel_size.height = ev.GetSize().GetHeight();
calculate_sizes ();
- get (_position, _last_get_accurate);
+ refresh ();
update_position_label ();
update_position_slider ();
}
void
FilmViewer::calculate_sizes ()
{
- if (!_film || !_player) {
+ if (!_film) {
return;
}
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);
+ _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.width = lrintf (_out_size.height * film_ratio);
}
/* Catch silly values */
}
if (_play_button->GetValue()) {
- _timer.Start (1000 / _film->video_frame_rate());
+ start ();
} else {
- _timer.Stop ();
+ stop ();
+ }
+}
+
+void
+FilmViewer::start ()
+{
+ if (_audio.isStreamOpen()) {
+ _audio.setStreamTime (_video_position.seconds());
+ _audio.startStream ();
+ }
+
+ _playing = true;
+ _dropped = 0;
+ timer ();
+ _play_button->SetValue (true);
+}
+
+bool
+FilmViewer::stop ()
+{
+ if (_audio.isStreamRunning()) {
+ /* stop stream and discard any remaining queued samples */
+ _audio.abortStream ();
+ }
+
+ if (!_playing) {
+ return false;
}
+
+ _playing = false;
+ _play_button->SetValue (false);
+ return true;
}
void
DCPTime const len = _film->length ();
if (len.get ()) {
- int const new_slider_position = 4096 * _position.get() / len.get();
+ int const new_slider_position = 4096 * _video_position.get() / len.get();
if (new_slider_position != _slider->GetValue()) {
_slider->SetValue (new_slider_position);
}
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));
+ _frame_number->SetLabel (wxString::Format (wxT("%ld"), lrint (_video_position.seconds() * fps) + 1));
+ _timecode->SetLabel (time_to_timecode (_video_position, fps));
}
void
-FilmViewer::active_jobs_changed (bool a)
+FilmViewer::active_jobs_changed (optional<string> j)
{
- 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;
- }
+ /* 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 (i == jobs.end() || (*i)->finished()) {
- /* no examine content job running, so we're ok to use the viewer */
- a = false;
- }
+DCPTime
+FilmViewer::nudge_amount (wxMouseEvent& ev)
+{
+ DCPTime amount = one_video_frame ();
+
+ if (ev.ShiftDown() && !ev.ControlDown()) {
+ amount = DCPTime::from_seconds (1);
+ } else if (!ev.ShiftDown() && ev.ControlDown()) {
+ amount = DCPTime::from_seconds (10);
+ } else if (ev.ShiftDown() && ev.ControlDown()) {
+ amount = DCPTime::from_seconds (60);
}
- _slider->Enable (!a);
- _play_button->Enable (!a);
+ return amount;
}
void
-FilmViewer::back_clicked ()
+FilmViewer::go_to (DCPTime t)
{
- DCPTime p = _position - DCPTime::from_frames (1, _film->video_frame_rate ());
- if (p < DCPTime ()) {
- p = DCPTime ();
+ if (t < DCPTime ()) {
+ t = DCPTime ();
+ }
+
+ if (t >= _film->length ()) {
+ t = _film->length ();
}
- get (p, true);
+ seek (t, true);
update_position_label ();
update_position_slider ();
}
void
-FilmViewer::forward_clicked ()
+FilmViewer::rewind_clicked (wxMouseEvent& ev)
{
- get (_position + DCPTime::from_frames (1, _film->video_frame_rate ()), true);
- update_position_label ();
- update_position_slider ();
+ go_to(DCPTime());
+ ev.Skip();
+}
+
+void
+FilmViewer::back_clicked (wxMouseEvent& ev)
+{
+ go_to (_video_position - nudge_amount (ev));
+ ev.Skip ();
+}
+
+void
+FilmViewer::forward_clicked (wxMouseEvent& ev)
+{
+ go_to (_video_position + nudge_amount (ev));
+ ev.Skip ();
}
void
return;
}
+ if (_coalesce_player_changes) {
+ _pending_player_change = true;
+ return;
+ }
+
calculate_sizes ();
- get (_position, _last_get_accurate);
+ refresh ();
update_position_label ();
update_position_slider ();
}
bool const c = _film && !_film->content().empty ();
_slider->Enable (c);
+ _rewind_button->Enable (c);
_back_button->Enable (c);
_forward_button->Enable (c);
_play_button->Enable (c);
- _outline_content->Enable (c);
+ if (_outline_content) {
+ _outline_content->Enable (c);
+ }
_frame_number->Enable (c);
_timecode->Enable (c);
+ if (_jump_to_selected) {
+ _jump_to_selected->Enable (c);
+ }
+
+ _left_eye->Enable (c && _film->three_d ());
+ _right_eye->Enable (c && _film->three_d ());
}
void
FilmViewer::film_changed (Film::Property p)
{
- if (p == Film::CONTENT) {
+ if (p == Film::CONTENT || p == Film::THREE_D) {
setup_sensitivity ();
}
}
+
+/** Re-get the current frame */
+void
+FilmViewer::refresh ()
+{
+ seek (_video_position, true);
+}
+
+void
+FilmViewer::set_position (DCPTime p)
+{
+ _video_position = p;
+ seek (p, true);
+ update_position_label ();
+ update_position_slider ();
+}
+
+void
+FilmViewer::set_coalesce_player_changes (bool c)
+{
+ _coalesce_player_changes = c;
+
+ if (c) {
+ _pending_player_change = false;
+ } else {
+ if (_pending_player_change) {
+ player_changed (false);
+ }
+ }
+}
+
+void
+FilmViewer::timecode_clicked ()
+{
+ PlayheadToTimecodeDialog* dialog = new PlayheadToTimecodeDialog (this, _film->video_frame_rate ());
+ if (dialog->ShowModal() == wxID_OK) {
+ go_to (dialog->get ());
+ }
+ dialog->Destroy ();
+}
+
+void
+FilmViewer::frame_number_clicked ()
+{
+ PlayheadToFrameDialog* dialog = new PlayheadToFrameDialog (this, _film->video_frame_rate ());
+ if (dialog->ShowModal() == wxID_OK) {
+ go_to (dialog->get ());
+ }
+ dialog->Destroy ();
+}
+
+void
+FilmViewer::jump_to_selected_clicked ()
+{
+ Config::instance()->set_jump_to_selected (_jump_to_selected->GetValue ());
+}
+
+void
+FilmViewer::seek (DCPTime t, bool accurate)
+{
+ if (!_butler) {
+ return;
+ }
+
+ bool const was_running = stop ();
+
+ _butler->seek (t, accurate);
+ get ();
+
+ if (was_running) {
+ start ();
+ }
+}
+
+void
+FilmViewer::config_changed (Config::Property p)
+{
+ if (p != Config::SOUND && p != Config::SOUND_OUTPUT) {
+ return;
+ }
+
+ if (_audio.isStreamOpen ()) {
+ _audio.closeStream ();
+ }
+
+ if (Config::instance()->sound()) {
+ 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 (
+ this,
+ _("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::time () const
+{
+ if (_audio.isStreamRunning ()) {
+ return DCPTime::from_seconds (const_cast<RtAudio*>(&_audio)->getStreamTime ()) -
+ DCPTime::from_frames (average_latency(), _film->audio_frame_rate());
+ }
+
+ return _video_position;
+}
+
+int
+FilmViewer::audio_callback (void* out_p, unsigned int frames)
+{
+ _butler->get_audio (reinterpret_cast<float*> (out_p), frames);
+
+ 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::set_dcp_decode_reduction (optional<int> reduction)
+{
+ _dcp_decode_reduction = reduction;
+ if (_player) {
+ _player->set_dcp_decode_reduction (reduction);
+ }
+}
+
+optional<int>
+FilmViewer::dcp_decode_reduction () const
+{
+ return _dcp_decode_reduction;
+}
+
+DCPTime
+FilmViewer::one_video_frame () const
+{
+ return DCPTime::from_frames (1, _film->video_frame_rate());
+}
projects / dcpomatic.git / blobdiff