[FFmpeg-trac] #5981(avformat:new): avformat_open_input() crashed in ios pad

[FFmpeg]

#5981: avformat_open_input() crashed in ios pad
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             Reporter:               |                    Owner:
  shamessss2012                      |                   Status:  new
                 Type:  defect       |                Component:  avformat
             Priority:  normal       |               Resolution:
              Version:  git-master   |               Blocked By:
             Keywords:  crash        |  Reproduced by developer:  0
  regression                         |
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by shamessss2012):

 Replying to [comment:1 cehoyos]:
 > Please test current FFmpeg git head and provide a backtrace.
 > Or find out which commit introduced the regression you see.

 Actually I am using the latest ffmpeg release. I can't provide the
 backtrace for the function av_opt_set_defaults（）can't be stepped in even
 if I re-compile it many times with debug info open.

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Ticket URL: <https://trac.ffmpeg.org/ticket/5981#comment:4>
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