/*
- Copyright (C) 2014-2018 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2019 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
#include "ffmpeg_image_proxy.h"
#include "image.h"
#include "config.h"
+#include "digester.h"
+#include "frame_interval_checker.h"
#include <dcp/dcp.h>
#include <dcp/cpl.h>
#include <dcp/reel.h>
#include <dcp/sound_frame.h>
#include <dcp/sound_asset_reader.h>
#include <dcp/subtitle_image.h>
+#include <dcp/decrypted_kdm.h>
#include <boost/foreach.hpp>
#include <iostream>
using std::list;
using std::cout;
+using std::string;
using boost::shared_ptr;
using boost::dynamic_pointer_cast;
using boost::optional;
+using namespace dcpomatic;
-DCPDecoder::DCPDecoder (shared_ptr<const Film> film, shared_ptr<const DCPContent> c, bool fast)
- : DCP (c)
+DCPDecoder::DCPDecoder (shared_ptr<const Film> film, shared_ptr<const DCPContent> c, bool fast, bool tolerant, shared_ptr<DCPDecoder> old)
+ : DCP (c, tolerant)
, Decoder (film)
, _decode_referenced (false)
{
}
}
- list<shared_ptr<dcp::CPL> > cpl_list = cpls ();
+ /* We try to avoid re-scanning the DCP's files every time we make a new DCPDecoder; we do this
+ by re-using the _reels list. Before we do this we need to check that nothing too serious
+ has changed in the DCPContent.
- if (cpl_list.empty()) {
- throw DCPError (_("No CPLs found in DCP."));
- }
+ We do this by storing a digest of the important bits of the DCPContent and then checking that's
+ the same before we re-use _reels.
+ */
+
+ _lazy_digest = calculate_lazy_digest (c);
+
+ if (old && old->lazy_digest() == _lazy_digest) {
+ _reels = old->_reels;
+ } else {
- shared_ptr<dcp::CPL> cpl;
- BOOST_FOREACH (shared_ptr<dcp::CPL> i, cpl_list) {
- if (_dcp_content->cpl() && i->id() == _dcp_content->cpl().get()) {
- cpl = i;
+ list<shared_ptr<dcp::CPL> > cpl_list = cpls ();
+
+ if (cpl_list.empty()) {
+ throw DCPError (_("No CPLs found in DCP."));
}
- }
- if (!cpl) {
- /* No CPL found; probably an old file that doesn't specify it;
- just use the first one.
- */
- cpl = cpls().front ();
+ shared_ptr<dcp::CPL> cpl;
+ BOOST_FOREACH (shared_ptr<dcp::CPL> i, cpl_list) {
+ if (_dcp_content->cpl() && i->id() == _dcp_content->cpl().get()) {
+ cpl = i;
+ }
+ }
+
+ if (!cpl) {
+ /* No CPL found; probably an old file that doesn't specify it;
+ just use the first one.
+ */
+ cpl = cpls().front ();
+ }
+
+ _reels = cpl->reels ();
}
set_decode_referenced (false);
- _reels = cpl->reels ();
-
_reel = _reels.begin ();
_offset = 0;
get_readers ();
bool
DCPDecoder::pass ()
{
- if (_reel == _reels.end () || !_dcp_content->can_be_played ()) {
+ if (!_dcp_content->can_be_played()) {
+ return true;
+ }
+
+ if (_reel == _reels.end()) {
+ if (audio) {
+ audio->flush ();
+ }
return true;
}
pass_texts (_next, picture_asset->size());
if ((_mono_reader || _stereo_reader) && (_decode_referenced || !_dcp_content->reference_video())) {
- int64_t const entry_point = (*_reel)->main_picture()->entry_point ();
+ int64_t const entry_point = (*_reel)->main_picture()->entry_point().get_value_or(0);
if (_mono_reader) {
video->emit (
film(),
}
if (_sound_reader && (_decode_referenced || !_dcp_content->reference_audio())) {
- int64_t const entry_point = (*_reel)->main_sound()->entry_point ();
+ int64_t const entry_point = (*_reel)->main_sound()->entry_point().get_value_or(0);
shared_ptr<const dcp::SoundFrame> sf = _sound_reader->get_frame (entry_point + frame);
uint8_t const * from = sf->data ();
DCPDecoder::pass_texts (ContentTime next, dcp::Size size)
{
list<shared_ptr<TextDecoder> >::const_iterator decoder = text.begin ();
+ if (decoder == text.end()) {
+ /* It's possible that there is now a main subtitle but no TextDecoders, for example if
+ the CPL has just changed but the TextContent's texts have not been recreated yet.
+ */
+ return;
+ }
+
if ((*_reel)->main_subtitle()) {
- DCPOMATIC_ASSERT (decoder != text.end ());
pass_texts (
next,
(*_reel)->main_subtitle()->asset(),
_dcp_content->reference_text(TEXT_OPEN_SUBTITLE),
- (*_reel)->main_subtitle()->entry_point(),
+ (*_reel)->main_subtitle()->entry_point().get_value_or(0),
*decoder,
size
);
++decoder;
}
+
BOOST_FOREACH (shared_ptr<dcp::ReelClosedCaptionAsset> i, (*_reel)->closed_captions()) {
- DCPOMATIC_ASSERT (decoder != text.end ());
pass_texts (
- next, i->asset(), _dcp_content->reference_text(TEXT_CLOSED_CAPTION), i->entry_point(), *decoder, size
+ next, i->asset(), _dcp_content->reference_text(TEXT_CLOSED_CAPTION), i->entry_point().get_value_or(0), *decoder, size
);
++decoder;
}
void
DCPDecoder::next_reel ()
{
- _offset += (*_reel)->main_picture()->duration();
+ _offset += (*_reel)->main_picture()->actual_duration();
++_reel;
get_readers ();
}
/* Seek to pre-roll position */
- while (_reel != _reels.end() && pre >= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate(film()))) {
- ContentTime rd = ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate(film()));
+ while (
+ _reel != _reels.end() &&
+ pre >= ContentTime::from_frames ((*_reel)->main_picture()->actual_duration(), _dcp_content->active_video_frame_rate(film()))
+ ) {
+
+ ContentTime rd = ContentTime::from_frames ((*_reel)->main_picture()->actual_duration(), _dcp_content->active_video_frame_rate(film()));
pre -= rd;
t -= rd;
next_reel ();
/* Seek to correct position */
- while (_reel != _reels.end() && t >= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate(film()))) {
- t -= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate(film()));
+ while (
+ _reel != _reels.end() &&
+ t >= ContentTime::from_frames ((*_reel)->main_picture()->actual_duration(), _dcp_content->active_video_frame_rate(film()))
+ ) {
+
+ t -= ContentTime::from_frames ((*_reel)->main_picture()->actual_duration(), _dcp_content->active_video_frame_rate(film()));
next_reel ();
}
{
_forced_reduction = reduction;
}
+
+string
+DCPDecoder::calculate_lazy_digest (shared_ptr<const DCPContent> c) const
+{
+ Digester d;
+ BOOST_FOREACH (boost::filesystem::path i, c->paths()) {
+ d.add (i.string());
+ }
+ if (_dcp_content->kdm()) {
+ d.add(_dcp_content->kdm()->id());
+ }
+ d.add (static_cast<bool>(c->cpl()));
+ if (c->cpl()) {
+ d.add (c->cpl().get());
+ }
+ return d.get ();
+}
+
+ContentTime
+DCPDecoder::position () const
+{
+ return ContentTime::from_frames(_offset, _dcp_content->active_video_frame_rate(film())) + _next;
+}
projects / dcpomatic.git / blobdiff