/*
- Copyright (C) 2014-2018 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
-#include "dcp_subtitle_decoder.h"
+
#include "dcp_subtitle_content.h"
+#include "dcp_subtitle_decoder.h"
+#include "font.h"
+#include "text_content.h"
#include <dcp/interop_subtitle_asset.h>
-#include <iostream>
+#include <dcp/load_font_node.h>
+
+using std::dynamic_pointer_cast;
using std::list;
-using std::cout;
-using boost::shared_ptr;
-using boost::dynamic_pointer_cast;
-using boost::bind;
+using std::make_shared;
+using std::shared_ptr;
+using std::string;
+using std::vector;
+using boost::optional;
+using namespace dcpomatic;
-DCPSubtitleDecoder::DCPSubtitleDecoder (shared_ptr<const DCPSubtitleContent> content, shared_ptr<Log> log)
+
+DCPSubtitleDecoder::DCPSubtitleDecoder (shared_ptr<const Film> film, shared_ptr<const DCPSubtitleContent> content)
+ : Decoder (film)
{
- shared_ptr<dcp::SubtitleAsset> c (load (content->path (0)));
- _subtitles = c->subtitles ();
+ /* Load the XML or MXF file */
+ auto const asset = load (content->path(0));
+ asset->fix_empty_font_ids ();
+ _subtitles = asset->subtitles ();
_next = _subtitles.begin ();
- ContentTime first;
- if (_next != _subtitles.end()) {
- first = content_time_period(*_next).from;
+ if (dynamic_pointer_cast<dcp::InteropSubtitleAsset>(asset)) {
+ _standard = dcp::Standard::INTEROP;
+ } else {
+ _standard = dcp::Standard::SMPTE;
}
- subtitle.reset (new SubtitleDecoder (this, content->subtitle, log, first));
+
+ text.push_back (make_shared<TextDecoder>(this, content->only_text()));
+ update_position();
}
+
void
DCPSubtitleDecoder::seek (ContentTime time, bool accurate)
{
Decoder::seek (time, accurate);
_next = _subtitles.begin ();
- list<shared_ptr<dcp::Subtitle> >::const_iterator i = _subtitles.begin ();
+ auto i = _subtitles.begin ();
while (i != _subtitles.end() && ContentTime::from_seconds ((*_next)->in().as_seconds()) < time) {
++i;
}
+
+ update_position();
}
+
bool
DCPSubtitleDecoder::pass ()
{
/* Gather all subtitles with the same time period that are next
on the list. We must emit all subtitles for the same time
- period with the same text_subtitle() call otherwise the
- SubtitleDecoder will assume there is nothing else at the
- time of emit the first.
+ period with the same emit*() call otherwise the
+ TextDecoder will assume there is nothing else at the
+ time of emitting the first.
*/
- list<dcp::SubtitleString> s;
- ContentTimePeriod const p = content_time_period (*_next);
+ vector<dcp::SubtitleString> s;
+ vector<dcp::SubtitleImage> i;
+ auto const p = content_time_period (*_next);
while (_next != _subtitles.end () && content_time_period (*_next) == p) {
- shared_ptr<dcp::SubtitleString> ns = dynamic_pointer_cast<dcp::SubtitleString>(*_next);
+ auto ns = dynamic_pointer_cast<const dcp::SubtitleString>(*_next);
if (ns) {
s.push_back (*ns);
++_next;
+ } else {
+ /* 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 DCPDecoder.
+ */
+
+ auto ni = dynamic_pointer_cast<const dcp::SubtitleImage>(*_next);
+ if (ni) {
+ emit_subtitle_image (p, *ni, film()->frame_size(), only_text());
+ ++_next;
+ }
}
-
- /* XXX: image subtitles */
}
- subtitle->emit_text (p, s);
+ only_text()->emit_plain(p, s, _standard);
+
+ update_position();
+
return false;
}
+
ContentTimePeriod
-DCPSubtitleDecoder::content_time_period (shared_ptr<dcp::Subtitle> s) const
+DCPSubtitleDecoder::content_time_period (shared_ptr<const dcp::Subtitle> s) const
{
- return ContentTimePeriod (
- ContentTime::from_seconds (s->in().as_seconds ()),
- ContentTime::from_seconds (s->out().as_seconds ())
- );
+ return {
+ ContentTime::from_seconds(s->in().as_seconds()),
+ ContentTime::from_seconds(s->out().as_seconds())
+ };
}
+
+
+/** @return time of first subtitle, if there is one */
+optional<ContentTime>
+DCPSubtitleDecoder::first () const
+{
+ if (_subtitles.empty()) {
+ return {};
+ }
+
+ return ContentTime::from_seconds(_subtitles[0]->in().as_seconds());
+}
+
+
+void
+DCPSubtitleDecoder::update_position()
+{
+ if (_next != _subtitles.end()) {
+ only_text()->maybe_set_position(
+ ContentTime::from_seconds((*_next)->in().as_seconds())
+ );
+ }
+}
+