template <class T>
list<T>
-SubtitleDecoder::get (list<T> const & subs, ContentTimePeriod period)
+SubtitleDecoder::get (list<T> const & subs, ContentTimePeriod period, bool starting)
{
- if (!has_subtitle_during (period)) {
+ /* Get the full periods of the subtitles that are showing or starting during the specified period */
+ list<ContentTimePeriod> sp = subtitles_during (period, starting);
+ 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 more than a reasonable amount after */
+ if (subs.empty() || sp.back().to < subs.front().period().from || sp.front().from > (subs.back().period().to + ContentTime::from_seconds (5))) {
+ 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() && (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);
}
}
}
list<ContentTextSubtitle>
-SubtitleDecoder::get_text_subtitles (ContentTimePeriod period)
+SubtitleDecoder::get_text_subtitles (ContentTimePeriod period, bool starting)
{
- return get<ContentTextSubtitle> (_decoded_text_subtitles, period);
+ return get<ContentTextSubtitle> (_decoded_text_subtitles, period, starting);
}
list<ContentImageSubtitle>
-SubtitleDecoder::get_image_subtitles (ContentTimePeriod period)
+SubtitleDecoder::get_image_subtitles (ContentTimePeriod period, bool starting)
{
- return get<ContentImageSubtitle> (_decoded_image_subtitles, period);
+ return get<ContentImageSubtitle> (_decoded_image_subtitles, period, starting);
}
void