[FFmpeg-devel] [PATCH] Pass "forced" flag to dvdsubenc

Oliver Fromme oliver at fromme.com
Mon May 19 18:23:37 CEST 2014


Just a small addendum ...

Oliver Fromme wrote:
 > [...]
 > Most of the open source DVD software was implemented based on
 > reverse-engineering.  As far as DVD subtitles are concerned,
 > there's a pretty good document here:
 > 
 > http://dvd.sourceforge.net/spu_notes
 > 
 > It is quite terse and incomplete, but it contains most of the
 > information required to handle SPUs (sub-picture units).

There's another document:

http://stnsoft.com/DVD/spu.html

It's written independently from the other, so it calls things
by different names.  This one is from a vendor of DVD authoring
software, so I think it is quite reliable.  To quote from that
page:

    00 - FSTA_DSP - Forced Start Display, no arguments 
    01 - STA_DSP - Start Display, no arguments

I think that's pretty clear.

Best regards
   Oliver


-- 
``We are all but compressed light'' (Albert Einstein)


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