[FFmpeg-trac] #3247(avcodec:open): Transparent subtitle outlines (IDX/SUB) upon conversion to XSUB become solid, and colors become b&w

[FFmpeg]

#3247: Transparent subtitle outlines (IDX/SUB) upon conversion to XSUB become
solid, and colors become b&w
-------------------------------------+-----------------------------------
             Reporter:  userid99     |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  xsub         |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-----------------------------------

Comment (by richardpl):

 xsub, with tag DXSB does not support alpha. It knows only about background
 which is always transparent and foreground which is not transparent.
 DXSA on other hand have support for alpha, but xsub encoder does not
 support it.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3247#comment:5>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker