[FFmpeg-trac] #9700(ffprobe:new): "451 Unavailable For Legal Reasons" instead of just HTTP_OTHER_4XX error

[FFmpeg]

#9700: "451 Unavailable For Legal Reasons" instead of just HTTP_OTHER_4XX error
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             Reporter:  Owyn         |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  ffprobe      |                  Version:
             Keywords:  451 error    |  unspecified
  4XX                                |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Summary of the bug:

 HTTP error code for 451 is currently missing from FFPROBE so it just
 returns HTTP_OTHER_4XX error for it mixing things up and making it
 impossible to detect when a server is returning 451 for geo-blocked
 content and not the old-fashioned 403 forbidden

 How to reproduce:

 ffprobe a geo-blocked iptv channel ( for example -
 https://strm.yandex.ru/kal/rbc/rbc0.m3u8 )

 Expected result:

 "Server returned 451 Unavailable For Legal Reasons"

 Actual result:

 "Server returned 4XX Client Error, but not one of 40{0,1,3,4}"
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9700>
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