[FFmpeg-trac] #5429(undetermined:closed): mov_text subtitles crash "QuickTime Player" and iOS devices

[FFmpeg]

#5429: mov_text subtitles crash "QuickTime Player" and iOS devices
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             Reporter:  julian       |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  mov_text     |               Resolution:  invalid
  sub                                |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by julian):

 note to others that may be hitting this:

  i can just take the movtextenc.c from 2.7.2 in 2.8.6 and 3.0.1 to fix the
 problem ,however when i do the same in current git head, there are no
 subtitles at all

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Ticket URL: <https://trac.ffmpeg.org/ticket/5429#comment:8>
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