Comment 16 for bug 408647

Upstream responds regarding why the subtitles aren't displayed in this case:
"I've tested that file, and the subtitles are very large images, including large
amounts of blank space, so when clipped you just see part of the image, which
happens to be within the transparent border.
A fix could be to look inside the subtitles, trim transparent borders, and
center the rest, but it really should be fixed encoding side, and this goes
into diminishing returns."