if (!_current && !_tracks.empty()) {
/* We have no current one: get another */
shared_ptr<Butler> butler = _butler.lock ();
- DCPOMATIC_ASSERT (butler);
DCPOMATIC_ASSERT (_track->GetSelection() >= 0);
DCPOMATIC_ASSERT (_track->GetSelection() < int(_tracks.size()));
DCPTextTrack track = _tracks[_track->GetSelection()];
- while (true) {
- optional<TextRingBuffers::Data> d = butler->get_closed_caption ();
- if (!d) {
- break;
- }
- if (d->track == track) {
- _current = d;
- break;
+ if (butler) {
+ while (true) {
+ optional<TextRingBuffers::Data> d = butler->get_closed_caption ();
+ if (!d) {
+ break;
+ }
+ if (d->track == track) {
+ _current = d;
+ break;
+ }
}
- }
- _current_in_lines = false;
+ _current_in_lines = false;
+ }
}
if (_current && _current->period.contains(time)) {