[Bug 1359] Complex rendering (Indic, Persian languages) support in subtitles

[bugzilla-daemon at bugzilla.mplayerhq.hu]

http://bugzilla.mplayerhq.hu/show_bug.cgi?id=1359





------- Comment #1 from eugeni.stepanov at gmail.com  2008-12-25 20:31 CEST -------
I've been thinking of doing it, but I don't fully understand how much code
around harfbuzz is needed. All these libraries (pango and qt, at least) seem to
be doing a lot of additional work: shapers for different languages, calls to
freebidi2, so on.

It seems harfbuzz already includes some implementation of bidi algorithm. It
also seems to include a set of shapers, probably from QT. Will it be ok to
simply replace charcode to glyph index conversion by a call to HB_ShapeItem?

Another thing I don't understand: how could harfbuzz do bidi, if it can only be
done after line breaking? Harfbuzz does not do line breaking.


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