/*
- Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
-#include <boost/shared_ptr.hpp>
#include "subtitle_decoder.h"
#include "subtitle_content.h"
+#include <boost/shared_ptr.hpp>
+#include <boost/foreach.hpp>
+#include <iostream>
using std::list;
using std::cout;
}
/** Called by subclasses when an image subtitle is ready.
- * Image may be 0 to say that there is no current subtitle.
+ * @param period Period of the subtitle.
+ * @param image Subtitle image.
+ * @param rect Area expressed as a fraction of the video frame that this subtitle
+ * is for (e.g. a width of 0.5 means the width of the subtitle is half the width
+ * of the video frame)
*/
void
SubtitleDecoder::image_subtitle (ContentTimePeriod period, shared_ptr<Image> image, dcpomatic::Rect<double> rect)
}
void
-SubtitleDecoder::text_subtitle (list<dcp::SubtitleString> s)
+SubtitleDecoder::text_subtitle (ContentTimePeriod period, list<dcp::SubtitleString> s)
{
- _decoded_text_subtitles.push_back (ContentTextSubtitle (s));
+ _decoded_text_subtitles.push_back (ContentTextSubtitle (period, s));
}
+/** @param sp Full periods of subtitles that are showing or starting during the specified period */
template <class T>
list<T>
-SubtitleDecoder::get (list<T> const & subs, ContentTimePeriod period)
+SubtitleDecoder::get (list<T> const & subs, list<ContentTimePeriod> const & sp, ContentTimePeriod period, bool starting, bool accurate)
{
- if (!has_subtitle_during (period)) {
+ if (sp.empty ()) {
+ /* Nothing in this period */
return list<T> ();
}
- if (subs.empty() || period.from < subs.front().period().from || period.to > (subs.back().period().to + ContentTime::from_seconds (10))) {
- /* Either we have no decoded data, or what we do have is a long way from what we want: seek */
- seek (period.from, true);
+ /* Seek if what we want is before what we have, or a more than a little bit after */
+ if (subs.empty() || sp.back().to < subs.front().period().from || sp.front().from > (subs.back().period().to + ContentTime::from_seconds (1))) {
+ seek (sp.front().from, true);
}
/* Now enough pass() calls will either:
* (a) give us what we want, or
* (b) hit the end of the decoder.
*/
- while (!pass() && (subs.empty() || (subs.front().period().from > period.from || period.to < subs.back().period().to))) {}
+ while (!pass(PASS_REASON_SUBTITLE, accurate) && (subs.empty() || (subs.back().period().to < sp.back().to))) {}
/* Now look for what we wanted in the data we have collected */
/* XXX: inefficient */
-
+
list<T> out;
for (typename list<T>::const_iterator i = subs.begin(); i != subs.end(); ++i) {
- if (i->period().overlaps (period)) {
+ if ((starting && period.contains (i->period().from)) || (!starting && period.overlaps (i->period ()))) {
out.push_back (*i);
}
}
+ /* Discard anything in _decoded_image_subtitles that is outside 5 seconds either side of period */
+
+ list<ContentImageSubtitle>::iterator i = _decoded_image_subtitles.begin();
+ while (i != _decoded_image_subtitles.end()) {
+ list<ContentImageSubtitle>::iterator tmp = i;
+ ++tmp;
+
+ if (
+ i->period().to < (period.from - ContentTime::from_seconds (5)) ||
+ i->period().from > (period.to + ContentTime::from_seconds (5))
+ ) {
+ _decoded_image_subtitles.erase (i);
+ }
+
+ i = tmp;
+ }
+
return out;
}
list<ContentTextSubtitle>
-SubtitleDecoder::get_text_subtitles (ContentTimePeriod period)
+SubtitleDecoder::get_text_subtitles (ContentTimePeriod period, bool starting, bool accurate)
{
- return get<ContentTextSubtitle> (_decoded_text_subtitles, period);
+ return get<ContentTextSubtitle> (_decoded_text_subtitles, text_subtitles_during (period, starting), period, starting, accurate);
}
list<ContentImageSubtitle>
-SubtitleDecoder::get_image_subtitles (ContentTimePeriod period)
+SubtitleDecoder::get_image_subtitles (ContentTimePeriod period, bool starting, bool accurate)
{
- return get<ContentImageSubtitle> (_decoded_image_subtitles, period);
+ return get<ContentImageSubtitle> (_decoded_image_subtitles, image_subtitles_during (period, starting), period, starting, accurate);
}
void