/*
- Copyright (C) 2014-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2020 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
+#include "atmos_decoder.h"
#include "dcp_decoder.h"
#include "dcp_content.h"
#include "audio_content.h"
#include "video_decoder.h"
#include "audio_decoder.h"
#include "j2k_image_proxy.h"
-#include "subtitle_decoder.h"
+#include "text_decoder.h"
+#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/reel_picture_asset.h>
#include <dcp/reel_sound_asset.h>
#include <dcp/reel_subtitle_asset.h>
+#include <dcp/reel_closed_caption_asset.h>
#include <dcp/mono_picture_frame.h>
#include <dcp/stereo_picture_frame.h>
#include <dcp/sound_frame.h>
#include <dcp/sound_asset_reader.h>
-#include <boost/foreach.hpp>
+#include <dcp/subtitle_image.h>
+#include <dcp/decrypted_kdm.h>
+#include <dcp/reel_atmos_asset.h>
#include <iostream>
+#include "i18n.h"
+
using std::list;
using std::cout;
-using boost::shared_ptr;
-using boost::dynamic_pointer_cast;
+using std::map;
+using std::string;
+using std::vector;
+using std::shared_ptr;
+using std::dynamic_pointer_cast;
+using std::make_shared;
using boost::optional;
+using namespace dcpomatic;
-DCPDecoder::DCPDecoder (shared_ptr<const DCPContent> c, shared_ptr<Log> log, bool fast)
- : DCP (c)
- , _decode_referenced (false)
+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)
{
- video.reset (new VideoDecoder (this, c, log));
- if (c->audio) {
- audio.reset (new AudioDecoder (this, c->audio, log, fast));
- }
- if (c->subtitle) {
- subtitle.reset (new SubtitleDecoder (this, c->subtitle, log));
+ if (c->can_be_played()) {
+ if (c->video) {
+ video = make_shared<VideoDecoder>(this, c);
+ }
+ if (c->audio) {
+ audio = make_shared<AudioDecoder>(this, c->audio, fast);
+ }
+ for (auto i: c->text) {
+ /* XXX: this time here should be the time of the first subtitle, not 0 */
+ text.push_back (make_shared<TextDecoder>(this, i, ContentTime()));
+ }
+ if (c->atmos) {
+ atmos = make_shared<AtmosDecoder>(this, c);
+ }
}
- shared_ptr<dcp::CPL> cpl;
- BOOST_FOREACH (shared_ptr<dcp::CPL> i, cpls ()) {
- if (_dcp_content->cpl() && i->id() == _dcp_content->cpl().get()) {
- cpl = i;
+ /* 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.
+
+ 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 {
+
+ auto 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;
+ for (auto 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 ();
}
- _reels = cpl->reels ();
+ set_decode_referenced (false);
_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;
}
- double const vfr = _dcp_content->active_video_frame_rate ();
+ if (_reel == _reels.end()) {
+ if (audio) {
+ audio->flush ();
+ }
+ return true;
+ }
+
+ double const vfr = _dcp_content->active_video_frame_rate (film());
/* Frame within the (played part of the) reel that is coming up next */
int64_t const frame = _next.frames_round (vfr);
+ shared_ptr<dcp::PictureAsset> picture_asset = (*_reel)->main_picture()->asset();
+ DCPOMATIC_ASSERT (picture_asset);
+
+ /* We must emit texts first as when we emit the video for this frame
+ it will expect already to have the texts.
+ */
+ pass_texts (_next, picture_asset->size());
+
if ((_mono_reader || _stereo_reader) && (_decode_referenced || !_dcp_content->reference_video())) {
- shared_ptr<dcp::PictureAsset> asset = (*_reel)->main_picture()->asset ();
- 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 (
- shared_ptr<ImageProxy> (
- new J2KImageProxy (
- _mono_reader->get_frame (entry_point + frame),
- asset->size(),
- AV_PIX_FMT_XYZ12LE,
- _forced_reduction
- )
+ film(),
+ std::make_shared<J2KImageProxy>(
+ _mono_reader->get_frame (entry_point + frame),
+ picture_asset->size(),
+ AV_PIX_FMT_XYZ12LE,
+ _forced_reduction
),
_offset + frame
);
} else {
video->emit (
- shared_ptr<ImageProxy> (
- new J2KImageProxy (
- _stereo_reader->get_frame (entry_point + frame),
- asset->size(),
- dcp::EYE_LEFT,
- AV_PIX_FMT_XYZ12LE,
- _forced_reduction
- )
+ film(),
+ std::make_shared<J2KImageProxy>(
+ _stereo_reader->get_frame (entry_point + frame),
+ picture_asset->size(),
+ dcp::Eye::LEFT,
+ AV_PIX_FMT_XYZ12LE,
+ _forced_reduction
),
_offset + frame
);
video->emit (
- shared_ptr<ImageProxy> (
- new J2KImageProxy (
- _stereo_reader->get_frame (entry_point + frame),
- asset->size(),
- dcp::EYE_RIGHT,
- AV_PIX_FMT_XYZ12LE,
- _forced_reduction
- )
+ film(),
+ std::make_shared<J2KImageProxy>(
+ _stereo_reader->get_frame (entry_point + frame),
+ picture_asset->size(),
+ dcp::Eye::RIGHT,
+ AV_PIX_FMT_XYZ12LE,
+ _forced_reduction
),
_offset + frame
);
}
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 ();
}
}
- audio->emit (_dcp_content->audio->stream(), data, ContentTime::from_frames (_offset, vfr) + _next);
+ audio->emit (film(), _dcp_content->audio->stream(), data, ContentTime::from_frames (_offset, vfr) + _next);
}
- if ((*_reel)->main_subtitle() && (_decode_referenced || !_dcp_content->reference_subtitle())) {
- int64_t const entry_point = (*_reel)->main_subtitle()->entry_point ();
- list<dcp::SubtitleString> subs = (*_reel)->main_subtitle()->asset()->subtitles_during (
- dcp::Time (entry_point + frame, vfr, vfr),
- dcp::Time (entry_point + frame + 1, vfr, vfr),
- true
- );
-
- if (!subs.empty ()) {
- /* XXX: assuming that all `subs' are at the same time; maybe this is ok */
- subtitle->emit_text (
- ContentTimePeriod (
- ContentTime::from_frames (_offset - entry_point, vfr) + ContentTime::from_seconds (subs.front().in().as_seconds ()),
- ContentTime::from_frames (_offset - entry_point, vfr) + ContentTime::from_seconds (subs.front().out().as_seconds ())
- ),
- subs
- );
- }
+ if (_atmos_reader) {
+ DCPOMATIC_ASSERT (_atmos_metadata);
+ int64_t const entry_point = (*_reel)->atmos()->entry_point().get_value_or(0);
+ atmos->emit (film(), _atmos_reader->get_frame(entry_point + frame), _offset + frame, *_atmos_metadata);
}
_next += ContentTime::from_frames (1, vfr);
return false;
}
+void
+DCPDecoder::pass_texts (ContentTime next, dcp::Size size)
+{
+ auto 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()) {
+ pass_texts (
+ next,
+ (*_reel)->main_subtitle()->asset(),
+ _dcp_content->reference_text(TextType::OPEN_SUBTITLE),
+ (*_reel)->main_subtitle()->entry_point().get_value_or(0),
+ *decoder,
+ size
+ );
+ ++decoder;
+ }
+
+ for (auto i: (*_reel)->closed_captions()) {
+ pass_texts (
+ next, i->asset(), _dcp_content->reference_text(TextType::CLOSED_CAPTION), i->entry_point().get_value_or(0), *decoder, size
+ );
+ ++decoder;
+ }
+}
+
+void
+DCPDecoder::pass_texts (
+ ContentTime next, shared_ptr<dcp::SubtitleAsset> asset, bool reference, int64_t entry_point, shared_ptr<TextDecoder> decoder, dcp::Size size
+ )
+{
+ double const vfr = _dcp_content->active_video_frame_rate (film());
+ /* Frame within the (played part of the) reel that is coming up next */
+ int64_t const frame = next.frames_round (vfr);
+
+ if (_decode_referenced || !reference) {
+ auto subs = asset->subtitles_during (
+ dcp::Time (entry_point + frame, vfr, vfr),
+ dcp::Time (entry_point + frame + 1, vfr, vfr),
+ true
+ );
+
+ list<dcp::SubtitleString> strings;
+
+ for (auto i: subs) {
+ auto is = dynamic_pointer_cast<const dcp::SubtitleString>(i);
+ if (is) {
+ if (!strings.empty() && (strings.back().in() != is->in() || strings.back().out() != is->out())) {
+ auto b = strings.back();
+ decoder->emit_plain (
+ ContentTimePeriod (
+ ContentTime::from_frames(_offset - entry_point, vfr) + ContentTime::from_seconds(b.in().as_seconds()),
+ ContentTime::from_frames(_offset - entry_point, vfr) + ContentTime::from_seconds(b.out().as_seconds())
+ ),
+ strings
+ );
+ strings.clear ();
+ }
+
+ strings.push_back (*is);
+ }
+
+ /* XXX: perhaps these image subs should also be collected together like the string ones are;
+ this would need to be done both here and in DCPSubtitleDecoder.
+ */
+
+ auto ii = dynamic_pointer_cast<const dcp::SubtitleImage>(i);
+ if (ii) {
+ emit_subtitle_image (
+ ContentTimePeriod (
+ ContentTime::from_frames (_offset - entry_point, vfr) + ContentTime::from_seconds (i->in().as_seconds ()),
+ ContentTime::from_frames (_offset - entry_point, vfr) + ContentTime::from_seconds (i->out().as_seconds ())
+ ),
+ *ii,
+ size,
+ decoder
+ );
+ }
+ }
+
+ if (!strings.empty()) {
+ auto b = strings.back();
+ decoder->emit_plain (
+ ContentTimePeriod (
+ ContentTime::from_frames(_offset - entry_point, vfr) + ContentTime::from_seconds(b.in().as_seconds()),
+ ContentTime::from_frames(_offset - entry_point, vfr) + ContentTime::from_seconds(b.out().as_seconds())
+ ),
+ strings
+ );
+ strings.clear ();
+ }
+ }
+}
+
void
DCPDecoder::next_reel ()
{
- _offset += (*_reel)->main_picture()->duration();
+ _offset += (*_reel)->main_picture()->actual_duration();
++_reel;
get_readers ();
}
_mono_reader.reset ();
_stereo_reader.reset ();
_sound_reader.reset ();
+ _atmos_reader.reset ();
return;
}
DCPOMATIC_ASSERT (mono || stereo);
if (mono) {
_mono_reader = mono->start_read ();
+ _mono_reader->set_check_hmac (false);
_stereo_reader.reset ();
} else {
_stereo_reader = stereo->start_read ();
+ _stereo_reader->set_check_hmac (false);
_mono_reader.reset ();
}
} else {
if ((*_reel)->main_sound()) {
_sound_reader = (*_reel)->main_sound()->asset()->start_read ();
+ _sound_reader->set_check_hmac (false);
} else {
_sound_reader.reset ();
}
+
+ if ((*_reel)->atmos()) {
+ shared_ptr<dcp::AtmosAsset> asset = (*_reel)->atmos()->asset();
+ _atmos_reader = asset->start_read();
+ _atmos_reader->set_check_hmac (false);
+ _atmos_metadata = AtmosMetadata (asset);
+ } else {
+ _atmos_reader.reset ();
+ _atmos_metadata = boost::none;
+ }
}
void
DCPDecoder::seek (ContentTime t, bool accurate)
{
+ if (!_dcp_content->can_be_played ()) {
+ return;
+ }
+
Decoder::seek (t, accurate);
_reel = _reels.begin ();
_offset = 0;
get_readers ();
- while (_reel != _reels.end() && t >= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate ())) {
- t -= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate ());
+ int const pre_roll_seconds = 2;
+
+ /* Pre-roll for subs */
+
+ ContentTime pre = t - ContentTime::from_seconds (pre_roll_seconds);
+ if (pre < ContentTime()) {
+ pre = ContentTime ();
+ }
+
+ /* Seek to pre-roll position */
+
+ 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 ();
+ }
+
+ /* Pass texts in the pre-roll */
+
+ double const vfr = _dcp_content->active_video_frame_rate (film());
+ for (int i = 0; i < pre_roll_seconds * vfr; ++i) {
+ pass_texts (pre, (*_reel)->main_picture()->asset()->size());
+ pre += ContentTime::from_frames (1, vfr);
+ }
+
+ /* Seek to correct position */
+
+ 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 ();
}
}
void
-DCPDecoder::set_decode_referenced ()
+DCPDecoder::set_decode_referenced (bool r)
{
- _decode_referenced = true;
+ _decode_referenced = r;
+
+ if (video) {
+ video->set_ignore (_dcp_content->reference_video() && !_decode_referenced);
+ }
+ if (audio) {
+ audio->set_ignore (_dcp_content->reference_audio() && !_decode_referenced);
+ }
}
void
{
_forced_reduction = reduction;
}
+
+string
+DCPDecoder::calculate_lazy_digest (shared_ptr<const DCPContent> c) const
+{
+ Digester d;
+ for (auto 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;
+}
+
+
+vector<FontData>
+DCPDecoder::fonts () const
+{
+ vector<FontData> data;
+ for (auto i: _reels) {
+ if (i->main_subtitle() && i->main_subtitle()->asset()) {
+ map<string, dcp::ArrayData> fm = i->main_subtitle()->asset()->font_data();
+ for (map<string, dcp::ArrayData>::const_iterator j = fm.begin(); j != fm.end(); ++j) {
+ data.push_back (FontData(j->first, j->second));
+ }
+ }
+ }
+ return data;
+}
+