/*
- Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2018 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
*/
#include "decoder.h"
+#include "video_decoder.h"
+#include "audio_decoder.h"
+#include "text_decoder.h"
+#include <boost/optional.hpp>
#include <iostream>
using std::cout;
using boost::optional;
+using boost::shared_ptr;
-void
-Decoder::maybe_seek (optional<ContentTime>& position, ContentTime time, bool accurate)
+/** @return Earliest time of content that the next pass() will emit */
+ContentTime
+Decoder::position () const
{
- if (!position) {
- /* A seek has just happened */
- return;
+ optional<ContentTime> pos;
+
+ if (video && !video->ignore() && (!pos || video->position() < *pos)) {
+ pos = video->position();
+ }
+
+ if (audio && !audio->ignore() && (!pos || audio->position() < *pos)) {
+ pos = audio->position();
}
- if (time >= *position && time < (*position + ContentTime::from_seconds(1))) {
- /* No need to seek: caller should just pass() */
- return;
+ BOOST_FOREACH (shared_ptr<TextDecoder> i, text) {
+ if (!i->ignore() && (!pos || i->position() < *pos)) {
+ pos = i->position();
+ }
}
- position.reset ();
- seek (time, accurate);
+ return pos.get_value_or(ContentTime());
+}
+
+void
+Decoder::seek (ContentTime, bool)
+{
+ if (video) {
+ video->seek ();
+ }
+ if (audio) {
+ audio->seek ();
+ }
+ BOOST_FOREACH (shared_ptr<TextDecoder> i, text) {
+ i->seek ();
+ }
+}
+
+shared_ptr<TextDecoder>
+Decoder::only_text () const
+{
+ DCPOMATIC_ASSERT (text.size() < 2);
+ if (text.empty ()) {
+ return shared_ptr<TextDecoder> ();
+ }
+ return text.front ();
}