/*
- Copyright (C) 2014-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2019 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/>.
*/
#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 "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/decrypted_kdm.h>
#include <dcp/cpl.h>
#include <dcp/reel.h>
#include <dcp/mono_picture_asset.h>
+#include <dcp/mono_picture_asset_reader.h>
#include <dcp/stereo_picture_asset.h>
+#include <dcp/stereo_picture_asset_reader.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 <dcp/subtitle_image.h>
+#include <dcp/decrypted_kdm.h>
#include <boost/foreach.hpp>
#include <iostream>
+#include "i18n.h"
+
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 DCPContent> c, shared_ptr<Log> log, bool fast)
- : VideoDecoder (c->video, log)
- , AudioDecoder (c->audio, fast, log)
- , SubtitleDecoder (c->subtitle)
- , _dcp_content (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)
{
- dcp::DCP dcp (c->directory ());
- dcp.read (false, 0, true);
- if (c->kdm ()) {
- dcp.add (dcp::DecryptedKDM (c->kdm().get (), Config::instance()->decryption_chain()->key().get ()));
+ if (c->can_be_played()) {
+ if (c->video) {
+ video.reset (new VideoDecoder (this, c));
+ }
+ if (c->audio) {
+ audio.reset (new AudioDecoder (this, c->audio, fast));
+ }
+ BOOST_FOREACH (shared_ptr<TextContent> i, c->text) {
+ /* XXX: this time here should be the time of the first subtitle, not 0 */
+ text.push_back (shared_ptr<TextDecoder> (new TextDecoder (this, i, ContentTime())));
+ }
}
- DCPOMATIC_ASSERT (dcp.cpls().size() == 1);
- _reels = dcp.cpls().front()->reels ();
+
+ /* 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 {
+
+ list<shared_ptr<dcp::CPL> > cpl_list = cpls ();
+
+ if (cpl_list.empty()) {
+ throw DCPError (_("No CPLs found in DCP."));
+ }
+
+ 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);
+
_reel = _reels.begin ();
+ _offset = 0;
+ get_readers ();
}
+
bool
-DCPDecoder::pass (PassReason reason, bool)
+DCPDecoder::pass ()
{
- if (_reel == _reels.end () || !_dcp_content->can_be_played ()) {
+ if (!_dcp_content->can_be_played()) {
return true;
}
- /* Offset of the start of the current reel from the start of the content in frames */
- int offset = 0;
- list<shared_ptr<dcp::Reel> >::const_iterator i = _reels.begin();
- while (i != _reel) {
- offset += (*i)->main_picture()->duration ();
- ++i;
+ if (_reel == _reels.end()) {
+ if (audio) {
+ audio->flush ();
+ }
+ return true;
}
- double const vfr = _dcp_content->video->video_frame_rate ();
+ 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 ((*_reel)->main_picture () && reason != PASS_REASON_SUBTITLE) {
- shared_ptr<dcp::PictureAsset> asset = (*_reel)->main_picture()->asset ();
- shared_ptr<dcp::MonoPictureAsset> mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (asset);
- shared_ptr<dcp::StereoPictureAsset> stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (asset);
- int64_t const entry_point = (*_reel)->main_picture()->entry_point ();
- if (mono) {
- video (shared_ptr<ImageProxy> (new J2KImageProxy (mono->get_frame (entry_point + frame), asset->size())), offset + frame);
+ 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())) {
+ int64_t const entry_point = (*_reel)->main_picture()->entry_point().get_value_or(0);
+ if (_mono_reader) {
+ video->emit (
+ film(),
+ shared_ptr<ImageProxy> (
+ new J2KImageProxy (
+ _mono_reader->get_frame (entry_point + frame),
+ picture_asset->size(),
+ AV_PIX_FMT_XYZ12LE,
+ _forced_reduction
+ )
+ ),
+ _offset + frame
+ );
} else {
- video (
- shared_ptr<ImageProxy> (new J2KImageProxy (stereo->get_frame (entry_point + frame), asset->size(), dcp::EYE_LEFT)),
- offset + frame
+ video->emit (
+ film(),
+ shared_ptr<ImageProxy> (
+ new J2KImageProxy (
+ _stereo_reader->get_frame (entry_point + frame),
+ picture_asset->size(),
+ dcp::EYE_LEFT,
+ AV_PIX_FMT_XYZ12LE,
+ _forced_reduction
+ )
+ ),
+ _offset + frame
);
- video (
- shared_ptr<ImageProxy> (new J2KImageProxy (stereo->get_frame (entry_point + frame), asset->size(), dcp::EYE_RIGHT)),
- offset + frame
+ video->emit (
+ film(),
+ shared_ptr<ImageProxy> (
+ new J2KImageProxy (
+ _stereo_reader->get_frame (entry_point + frame),
+ picture_asset->size(),
+ dcp::EYE_RIGHT,
+ AV_PIX_FMT_XYZ12LE,
+ _forced_reduction
+ )
+ ),
+ _offset + frame
);
}
}
- if ((*_reel)->main_sound () && reason != PASS_REASON_SUBTITLE) {
- int64_t const entry_point = (*_reel)->main_sound()->entry_point ();
- shared_ptr<const dcp::SoundFrame> sf = (*_reel)->main_sound()->asset()->get_frame (entry_point + frame);
+ if (_sound_reader && (_decode_referenced || !_dcp_content->reference_audio())) {
+ 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 ();
int const channels = _dcp_content->audio->stream()->channels ();
int const frames = sf->size() / (3 * channels);
shared_ptr<AudioBuffers> data (new AudioBuffers (channels, frames));
+ float** data_data = data->data();
for (int i = 0; i < frames; ++i) {
for (int j = 0; j < channels; ++j) {
- data->data()[j][i] = static_cast<int> ((from[0] << 8) | (from[1] << 16) | (from[2] << 24)) / static_cast<float> (INT_MAX - 256);
+ data_data[j][i] = static_cast<int> ((from[0] << 8) | (from[1] << 16) | (from[2] << 24)) / static_cast<float> (INT_MAX - 256);
from += 3;
}
}
- audio (_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);
+ }
+
+ _next += ContentTime::from_frames (1, vfr);
+
+ if ((*_reel)->main_picture ()) {
+ if (_next.frames_round (vfr) >= (*_reel)->main_picture()->duration()) {
+ next_reel ();
+ _next = ContentTime ();
+ }
+ }
+
+ return false;
+}
+
+void
+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()) {
+ pass_texts (
+ next,
+ (*_reel)->main_subtitle()->asset(),
+ _dcp_content->reference_text(TEXT_OPEN_SUBTITLE),
+ (*_reel)->main_subtitle()->entry_point().get_value_or(0),
+ *decoder,
+ size
+ );
+ ++decoder;
}
- if ((*_reel)->main_subtitle ()) {
- int64_t const entry_point = (*_reel)->main_subtitle()->entry_point ();
- list<dcp::SubtitleString> subs = (*_reel)->main_subtitle()->asset()->subtitles_during (
+ BOOST_FOREACH (shared_ptr<dcp::ReelClosedCaptionAsset> i, (*_reel)->closed_captions()) {
+ pass_texts (
+ next, i->asset(), _dcp_content->reference_text(TEXT_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) {
+ list<shared_ptr<dcp::Subtitle> > subs = 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 */
- text_subtitle (
+ list<dcp::SubtitleString> strings;
+
+ BOOST_FOREACH (shared_ptr<dcp::Subtitle> i, subs) {
+ shared_ptr<dcp::SubtitleString> is = dynamic_pointer_cast<dcp::SubtitleString> (i);
+ if (is) {
+ if (!strings.empty() && (strings.back().in() != is->in() || strings.back().out() != is->out())) {
+ dcp::SubtitleString 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.
+ */
+
+ shared_ptr<dcp::SubtitleImage> ii = dynamic_pointer_cast<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()) {
+ dcp::SubtitleString b = strings.back();
+ decoder->emit_plain (
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 ())
+ 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())
),
- subs
+ strings
);
+ strings.clear ();
}
}
+}
- _next += ContentTime::from_frames (1, vfr);
+void
+DCPDecoder::next_reel ()
+{
+ _offset += (*_reel)->main_picture()->actual_duration();
+ ++_reel;
+ get_readers ();
+}
- if ((*_reel)->main_picture ()) {
- if (_next.frames_round (vfr) >= (*_reel)->main_picture()->duration()) {
- ++_reel;
- _next = ContentTime ();
+void
+DCPDecoder::get_readers ()
+{
+ if (_reel == _reels.end() || !_dcp_content->can_be_played ()) {
+ _mono_reader.reset ();
+ _stereo_reader.reset ();
+ _sound_reader.reset ();
+ return;
+ }
+
+ if ((*_reel)->main_picture()) {
+ shared_ptr<dcp::PictureAsset> asset = (*_reel)->main_picture()->asset ();
+ shared_ptr<dcp::MonoPictureAsset> mono = dynamic_pointer_cast<dcp::MonoPictureAsset> (asset);
+ shared_ptr<dcp::StereoPictureAsset> stereo = dynamic_pointer_cast<dcp::StereoPictureAsset> (asset);
+ DCPOMATIC_ASSERT (mono || stereo);
+ if (mono) {
+ _mono_reader = mono->start_read ();
+ _stereo_reader.reset ();
+ } else {
+ _stereo_reader = stereo->start_read ();
+ _mono_reader.reset ();
}
+ } else {
+ _mono_reader.reset ();
+ _stereo_reader.reset ();
}
- return false;
+ if ((*_reel)->main_sound()) {
+ _sound_reader = (*_reel)->main_sound()->asset()->start_read ();
+ } else {
+ _sound_reader.reset ();
+ }
}
void
DCPDecoder::seek (ContentTime t, bool accurate)
{
- VideoDecoder::seek (t, accurate);
- AudioDecoder::seek (t, accurate);
- SubtitleDecoder::seek (t, accurate);
+ if (!_dcp_content->can_be_played ()) {
+ return;
+ }
+
+ Decoder::seek (t, accurate);
_reel = _reels.begin ();
- while (_reel != _reels.end() && t >= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->video->video_frame_rate ())) {
- t -= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->video->video_frame_rate ());
- ++_reel;
+ _offset = 0;
+ get_readers ();
+
+ int const pre_roll_seconds = 2;
+
+ /* Pre-roll for subs */
+
+ ContentTime pre = t - ContentTime::from_seconds (pre_roll_seconds);
+ if (pre < ContentTime()) {
+ pre = ContentTime ();
}
- _next = t;
-}
+ /* 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()))
+ ) {
-list<ContentTimePeriod>
-DCPDecoder::image_subtitles_during (ContentTimePeriod, bool) const
-{
- return list<ContentTimePeriod> ();
-}
+ ContentTime rd = ContentTime::from_frames ((*_reel)->main_picture()->actual_duration(), _dcp_content->active_video_frame_rate(film()));
+ pre -= rd;
+ t -= rd;
+ next_reel ();
+ }
-list<ContentTimePeriod>
-DCPDecoder::text_subtitles_during (ContentTimePeriod period, bool starting) const
-{
- /* XXX: inefficient */
+ /* Pass texts in the pre-roll */
- list<ContentTimePeriod> ctp;
- double const vfr = _dcp_content->video->video_frame_rate ();
+ 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);
+ }
- BOOST_FOREACH (shared_ptr<dcp::Reel> r, _reels) {
- if (!r->main_subtitle ()) {
- continue;
- }
+ /* Seek to correct position */
- int64_t const entry_point = r->main_subtitle()->entry_point ();
+ while (
+ _reel != _reels.end() &&
+ t >= ContentTime::from_frames ((*_reel)->main_picture()->actual_duration(), _dcp_content->active_video_frame_rate(film()))
+ ) {
- list<dcp::SubtitleString> subs = r->main_subtitle()->asset()->subtitles_during (
- dcp::Time (period.from.seconds(), 1000) - dcp::Time (entry_point, vfr, vfr),
- dcp::Time (period.to.seconds(), 1000) - dcp::Time (entry_point, vfr, vfr),
- starting
- );
+ t -= ContentTime::from_frames ((*_reel)->main_picture()->actual_duration(), _dcp_content->active_video_frame_rate(film()));
+ next_reel ();
+ }
- BOOST_FOREACH (dcp::SubtitleString const & s, subs) {
- ctp.push_back (
- ContentTimePeriod (
- ContentTime::from_seconds (s.in().as_seconds ()),
- ContentTime::from_seconds (s.out().as_seconds ())
- )
- );
- }
+ _next = t;
+}
+
+void
+DCPDecoder::set_decode_referenced (bool r)
+{
+ _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
+DCPDecoder::set_forced_reduction (optional<int> reduction)
+{
+ _forced_reduction = reduction;
+}
- return ctp;
+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