/*
- 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 <iostream>
#include <iomanip>
#include <wx/tglbtn.h>
+#include <dcp/exceptions.h>
#include "lib/film.h"
#include "lib/ratio.h"
#include "lib/util.h"
#include "lib/examine_content_job.h"
#include "lib/filter.h"
#include "lib/player.h"
+#include "lib/player_video.h"
#include "lib/video_content.h"
-#include "lib/ffmpeg_content.h"
-#include "lib/still_image_content.h"
#include "lib/video_decoder.h"
+#include "lib/timer.h"
#include "film_viewer.h"
#include "wx_util.h"
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);
_film = f;
_frame.reset ();
- _queue.clear ();
-
+
_slider->SetValue (0);
- set_position_text (0);
+ set_position_text ();
if (!_film) {
return;
}
- _player = f->make_player ();
- _player->disable_audio ();
- _player->Video.connect (boost::bind (&FilmViewer::process_video, this, _1, _2, _5));
+ 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<PlayerVideo> > pvf = _player->get_video (p, accurate);
+ if (!pvf.empty ()) {
+ try {
+ _frame = pvf.front()->image (true);
+ _frame = _frame->scale (_frame->size(), Scaler::from_id ("fastbilinear"), PIX_FMT_RGB24, false);
+ _position = pvf.front()->time ();
+ } 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;
}
- _player->seek (p, true);
- fetch_next_frame ();
+ set_position_text ();
+ _panel->Refresh ();
+ _panel->Update ();
+
+ _last_get_accurate = accurate;
}
void
FilmViewer::timer ()
{
- if (!_player) {
- return;
- }
-
- fetch_next_frame ();
+ get (_position + DCPTime::from_frames (1, _film->video_frame_rate ()), true);
- Time const len = _film->length ();
+ DCPTime const len = _film->length ();
- if (len) {
- int const new_slider_position = 4096 * _player->video_position() / len;
+ if (len.get ()) {
+ int const new_slider_position = 4096 * _position.get() / len.get();
if (new_slider_position != _slider->GetValue()) {
_slider->SetValue (new_slider_position);
}
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 ()
{
- 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::process_video (shared_ptr<const Image> image, Eyes eyes, Time t)
-{
- if (eyes == EYES_RIGHT) {
- return;
- }
-
- if (_got_frame) {
- /* This is an additional frame emitted by a single pass. Store it. */
- _queue.push_front (make_pair (image, t));
- return;
- }
-
- _frame = image;
- _got_frame = true;
-
- set_position_text (t);
-}
-
-void
-FilmViewer::set_position_text (Time t)
+FilmViewer::set_position_text ()
{
if (!_film) {
_frame_number->SetLabel ("0");
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);
_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, EYES_BOTH, _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 ();
-}
-
void
FilmViewer::active_jobs_changed (bool a)
{
void
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.
- */
-
- Time p = _player->video_position() - _film->video_frames_to_time (2);
- if (p < 0) {
- p = 0;
- }
-
- _player->seek (p, true);
- fetch_next_frame ();
+ get (p, true);
}
void
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);
}