/*
- Copyright (C) 2014-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2018 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
#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 <dcp/dcp.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 <boost/foreach.hpp>
#include <iostream>
+#include "i18n.h"
+
using std::list;
using std::cout;
using boost::shared_ptr;
using boost::dynamic_pointer_cast;
+using boost::optional;
-DCPDecoder::DCPDecoder (shared_ptr<const DCPContent> c, shared_ptr<Log> log)
+DCPDecoder::DCPDecoder (shared_ptr<const Film> film, shared_ptr<const DCPContent> c, bool fast)
: DCP (c)
+ , Decoder (film)
, _decode_referenced (false)
{
- video.reset (new VideoDecoder (this, c, log));
- audio.reset (new AudioDecoder (this, c->audio, log));
+ 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())));
+ }
+ }
- subtitle.reset (new SubtitleDecoder (this, c->subtitle, log));
+ 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, cpls ()) {
+ BOOST_FOREACH (shared_ptr<dcp::CPL> i, cpl_list) {
if (_dcp_content->cpl() && i->id() == _dcp_content->cpl().get()) {
cpl = i;
}
cpl = cpls().front ();
}
+ set_decode_referenced (false);
+
_reels = cpl->reels ();
_reel = _reels.begin ();
get_readers ();
}
-void
+
+bool
DCPDecoder::pass ()
{
- if (_reel == _reels.end () || !_dcp_content->can_be_played ()) {
- return;
+ 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 ();
if (_mono_reader) {
video->emit (
+ film(),
shared_ptr<ImageProxy> (
- new J2KImageProxy (_mono_reader->get_frame (entry_point + frame), asset->size(), AV_PIX_FMT_XYZ12LE)
+ new J2KImageProxy (
+ _mono_reader->get_frame (entry_point + frame),
+ picture_asset->size(),
+ AV_PIX_FMT_XYZ12LE,
+ _forced_reduction
+ )
),
_offset + frame
);
} else {
video->emit (
+ film(),
shared_ptr<ImageProxy> (
- new J2KImageProxy (_stereo_reader->get_frame (entry_point + frame), asset->size(), dcp::EYE_LEFT, AV_PIX_FMT_XYZ12LE)),
+ new J2KImageProxy (
+ _stereo_reader->get_frame (entry_point + frame),
+ picture_asset->size(),
+ dcp::EYE_LEFT,
+ AV_PIX_FMT_XYZ12LE,
+ _forced_reduction
+ )
+ ),
_offset + frame
);
video->emit (
+ film(),
shared_ptr<ImageProxy> (
- new J2KImageProxy (_stereo_reader->get_frame (entry_point + frame), asset->size(), dcp::EYE_RIGHT, AV_PIX_FMT_XYZ12LE)),
+ new J2KImageProxy (
+ _stereo_reader->get_frame (entry_point + frame),
+ picture_asset->size(),
+ dcp::EYE_RIGHT,
+ AV_PIX_FMT_XYZ12LE,
+ _forced_reduction
+ )
+ ),
_offset + frame
);
}
}
}
- 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);
+ }
+
+ _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(),
+ *decoder,
+ size
+ );
+ ++decoder;
}
- 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 (
+ 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(), *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 */
- subtitle->emit_text (
+ 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
);
- }
- }
-
- _next += ContentTime::from_frames (1, vfr);
-
- if ((*_reel)->main_picture ()) {
- if (_next.frames_round (vfr) >= (*_reel)->main_picture()->duration()) {
- next_reel ();
- _next = ContentTime ();
+ strings.clear ();
}
}
}
}
void
-DCPDecoder::seek (ContentTime t, bool)
+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()->duration(), _dcp_content->active_video_frame_rate(film()))) {
+ ContentTime rd = ContentTime::from_frames ((*_reel)->main_picture()->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()->duration(), _dcp_content->active_video_frame_rate(film()))) {
+ t -= ContentTime::from_frames ((*_reel)->main_picture()->duration(), _dcp_content->active_video_frame_rate(film()));
next_reel ();
}
}
void
-DCPDecoder::set_decode_referenced ()
+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;
+}
+
+ContentTime
+DCPDecoder::position () const
{
- _decode_referenced = true;
+ return ContentTime::from_frames(_offset, _dcp_content->active_video_frame_rate(film())) + _next;
}
projects / dcpomatic.git / blobdiff