/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "lib/examine_content_job.h"
#include "lib/filter.h"
#include "lib/player.h"
+#include "lib/player_video_frame.h"
#include "lib/video_content.h"
-#include "lib/ffmpeg_content.h"
-#include "lib/imagemagick_content.h"
+#include "lib/video_decoder.h"
+#include "lib/timer.h"
#include "film_viewer.h"
#include "wx_util.h"
-#include "video_decoder.h"
using std::string;
using std::pair;
using std::max;
using std::cout;
using std::list;
+using std::bad_alloc;
using std::make_pair;
using boost::shared_ptr;
using boost::dynamic_pointer_cast;
using boost::weak_ptr;
-using libdcp::Size;
+using dcp::Size;
FilmViewer::FilmViewer (shared_ptr<Film> f, wxWindow* p)
: wxPanel (p)
, _frame_number (new wxStaticText (this, wxID_ANY, wxT("")))
, _timecode (new wxStaticText (this, wxID_ANY, wxT("")))
, _play_button (new wxToggleButton (this, wxID_ANY, _("Play")))
- , _got_frame (false)
+ , _last_get_accurate (true)
{
#ifndef __WXOSX__
_panel->SetDoubleBuffered (true);
_back_button->SetMinSize (wxSize (32, -1));
_forward_button->SetMinSize (wxSize (32, -1));
- _panel->Connect (wxID_ANY, wxEVT_PAINT, wxPaintEventHandler (FilmViewer::paint_panel), 0, this);
- _panel->Connect (wxID_ANY, wxEVT_SIZE, wxSizeEventHandler (FilmViewer::panel_sized), 0, this);
- _slider->Connect (wxID_ANY, wxEVT_SCROLL_THUMBTRACK, wxScrollEventHandler (FilmViewer::slider_moved), 0, this);
- _slider->Connect (wxID_ANY, wxEVT_SCROLL_PAGEUP, wxScrollEventHandler (FilmViewer::slider_moved), 0, this);
- _slider->Connect (wxID_ANY, wxEVT_SCROLL_PAGEDOWN, wxScrollEventHandler (FilmViewer::slider_moved), 0, this);
- _play_button->Connect (wxID_ANY, wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler (FilmViewer::play_clicked), 0, this);
- _timer.Connect (wxID_ANY, wxEVT_TIMER, wxTimerEventHandler (FilmViewer::timer), 0, this);
- _back_button->Connect (wxID_ANY, wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler (FilmViewer::back_clicked), 0, this);
- _forward_button->Connect (wxID_ANY, wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler (FilmViewer::forward_clicked), 0, this);
+ _panel->Bind (wxEVT_PAINT, boost::bind (&FilmViewer::paint_panel, this));
+ _panel->Bind (wxEVT_SIZE, boost::bind (&FilmViewer::panel_sized, this, _1));
+ _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));
set_film (f);
_film = f;
_frame.reset ();
- _queue.clear ();
-
+
+ _slider->SetValue (0);
+ set_position_text ();
+
if (!_film) {
return;
}
- _player = f->player ();
- _player->disable_audio ();
- _player->Video.connect (boost::bind (&FilmViewer::process_video, this, _1, _3));
+ try {
+ _player = f->make_player ();
+ } catch (bad_alloc) {
+ error_dialog (this, _("There is not enough free memory to do that."));
+ _film.reset ();
+ return;
+ }
+
+ _player->set_approximate_size ();
_player->Changed.connect (boost::bind (&FilmViewer::player_changed, this, _1));
calculate_sizes ();
- fetch_current_frame_again ();
+ get (_position, _last_get_accurate);
}
void
-FilmViewer::fetch_current_frame_again ()
+FilmViewer::get (DCPTime p, bool accurate)
{
if (!_player) {
return;
}
- /* Player::video_position is the time after the last frame that we received.
- We want to see it again, so seek back one frame.
- */
-
- Time p = _player->video_position() - _film->video_frames_to_time (1);
- if (p < 0) {
- p = 0;
+ list<shared_ptr<PlayerVideoFrame> > pvf = _player->get_video (p, accurate);
+ if (!pvf.empty ()) {
+ _frame = pvf.front()->image ();
+ _frame = _frame->scale (_frame->size(), Scaler::from_id ("fastbilinear"), PIX_FMT_RGB24, false);
+ } else {
+ _frame.reset ();
}
- _player->seek (p, true);
- fetch_next_frame ();
+ _position = p;
+
+ set_position_text ();
+ _panel->Refresh ();
+ _panel->Update ();
+
+ _last_get_accurate = accurate;
}
void
-FilmViewer::timer (wxTimerEvent &)
+FilmViewer::timer ()
{
- if (!_player) {
- return;
- }
-
- fetch_next_frame ();
+ get (_position + DCPTime::from_frames (1, _film->video_frame_rate ()), true);
+
+ DCPTime const len = _film->length ();
- if (_film->length()) {
- int const new_slider_position = 4096 * _player->video_position() / _film->length();
+ if (len.get ()) {
+ int const new_slider_position = 4096 * _position.get() / len.get();
if (new_slider_position != _slider->GetValue()) {
_slider->SetValue (new_slider_position);
}
void
-FilmViewer::paint_panel (wxPaintEvent &)
+FilmViewer::paint_panel ()
{
wxPaintDC dc (_panel);
return;
}
- shared_ptr<Image> packed_frame (new Image (_frame, false));
-
- wxImage frame (_out_size.width, _out_size.height, packed_frame->data()[0], true);
+ wxImage frame (_out_size.width, _out_size.height, _frame->data()[0], true);
wxBitmap frame_bitmap (frame);
dc.DrawBitmap (frame_bitmap, 0, 0);
void
-FilmViewer::slider_moved (wxScrollEvent &)
+FilmViewer::slider_moved ()
{
- if (_film && _player) {
- _player->seek (_slider->GetValue() * _film->length() / 4096, false);
- fetch_next_frame ();
+ 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);
}
void
_panel_size.width = ev.GetSize().GetWidth();
_panel_size.height = ev.GetSize().GetHeight();
calculate_sizes ();
- fetch_current_frame_again ();
+ get (_position, _last_get_accurate);
}
void
Ratio const * container = _film->container ();
- float const panel_ratio = static_cast<float> (_panel_size.width) / _panel_size.height;
+ float const panel_ratio = _panel_size.ratio ();
float const film_ratio = container ? container->ratio () : 1.78;
if (panel_ratio < film_ratio) {
_out_size.width = max (64, _out_size.width);
_out_size.height = max (64, _out_size.height);
+ /* The player will round its image down to the nearest 4 pixels
+ to speed up its scale, so do similar here to avoid black borders
+ around things. This is a bit of a hack.
+ */
+ _out_size.width &= ~3;
+ _out_size.height &= ~3;
+
_player->set_video_container_size (_out_size);
}
void
-FilmViewer::play_clicked (wxCommandEvent &)
+FilmViewer::play_clicked ()
{
check_play_state ();
}
void
FilmViewer::check_play_state ()
{
- if (!_film || _film->dcp_video_frame_rate() == 0) {
+ if (!_film || _film->video_frame_rate() == 0) {
return;
}
if (_play_button->GetValue()) {
- _timer.Start (1000 / _film->dcp_video_frame_rate());
+ _timer.Start (1000 / _film->video_frame_rate());
} else {
_timer.Stop ();
}
}
void
-FilmViewer::process_video (shared_ptr<const Image> image, Time t)
+FilmViewer::set_position_text ()
{
- if (_got_frame) {
- /* This is an additional frame emitted by a single pass. Store it. */
- _queue.push_front (make_pair (image, t));
+ if (!_film) {
+ _frame_number->SetLabel ("0");
+ _timecode->SetLabel ("0:0:0.0");
return;
}
-
- _frame = image;
- _got_frame = true;
-
- double const fps = _film->dcp_video_frame_rate ();
+
+ 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 (t * fps / TIME_HZ)) + 1));
+ _frame_number->SetLabel (wxString::Format (wxT("%d"), int (rint (_position.seconds() * fps)) + 1));
- double w = static_cast<double>(t) / TIME_HZ;
+ double w = _position.seconds ();
int const h = (w / 3600);
w -= h * 3600;
int const m = (w / 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));
-}
-
-/** Ask the player to emit its next frame, then update our display */
-void
-FilmViewer::fetch_next_frame ()
-{
- /* Clear our frame in case we don't get a new one */
- _frame.reset ();
-
- if (!_player) {
- return;
- }
-
- _got_frame = false;
-
- if (!_queue.empty ()) {
- process_video (_queue.back().first, _queue.back().second);
- _queue.pop_back ();
- } else {
- try {
- while (!_got_frame && !_player->pass ()) {}
- } catch (DecodeError& e) {
- _play_button->SetValue (false);
- check_play_state ();
- error_dialog (this, wxString::Format (_("Could not decode video for view (%s)"), std_to_wx(e.what()).data()));
- }
- }
-
- _panel->Refresh ();
- _panel->Update ();
+ _timecode->SetLabel (wxString::Format (wxT("%02d:%02d:%02d.%02d"), h, m, s, f));
}
void
}
void
-FilmViewer::back_clicked (wxCommandEvent &)
+FilmViewer::back_clicked ()
{
- if (!_player) {
- return;
+ DCPTime p = _position - DCPTime::from_frames (1, _film->video_frame_rate ());
+ if (p < DCPTime ()) {
+ p = DCPTime ();
}
- /* Player::video_position is the time after the last frame that we received.
- We want to see the one before it, so we need to go back 2.
- */
-
- _player->seek (_player->video_position() - _film->video_frames_to_time(2), true);
- fetch_next_frame ();
+ get (p, true);
}
void
-FilmViewer::forward_clicked (wxCommandEvent &)
+FilmViewer::forward_clicked ()
{
- if (!_player) {
- return;
- }
-
- fetch_next_frame ();
+ get (_position + DCPTime::from_frames (1, _film->video_frame_rate ()), true);
}
void
if (frequent) {
return;
}
-
+
calculate_sizes ();
- fetch_current_frame_again ();
+ get (_position, _last_get_accurate);
}