[FFmpeg-trac] #3496(avformat:open): Support UTF-16 subtitles

[FFmpeg]

#3496: Support UTF-16 subtitles
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             Reporter:  klpu         |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  subtitle     |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by gjdfgh):

 This would be pretty simple to achieve:

 1. add a readline function that can convert utf16 to utf8 on the fly (but
 also can read utf8 alone - based on the function parameter)
 2. in the probe function, try all 3 fundamental encodings: 8 bit
 (codepage/multibyte, ASCII compatible), UTF16be, UTF16le.

 This would be pretty simple, and is the approach used by mplayer. It
 wouldn't need any complicated charset detection and conversion code.

 If nobody objects, I could write a patch.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3496#comment:3>
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