[FFmpeg-trac] #5783(avformat:new): Regression: circular buffer overrun on UDP stream under Windows.

[FFmpeg]

#5783: Regression: circular buffer overrun on UDP stream under Windows.
-------------------------------------+-------------------------------------
             Reporter:  mbat         |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avformat     |                  Version:  git-
             Keywords:  udp windows  |  master
  circular buffer overrun            |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 How to reproduce:
 {{{
 Open any existing udp-mpegts stream with the following command line:
 ffmpeg -i udp://127.0.0.1:1800 -c copy -t 10 -f mpegts - > NUL
 }}}

 Before commit '9b7a8bd' (25/05/2016) everything works fine.
 After that commint, ffmpeg takes a lot to quit (about 17-18 seconds) and
 exits with the following 'fake' error message:

 {{{
 [udp @ 006af240] Circular buffer overrun. To avoid, increase fifo_size URL
 option. To survive in such case, use overrun_nonfatal option
 }}}

 It looks that issue happens only on Windows machines.
 My test configuration was Windows 7 64 bit.
 I'm using Zeranoe builds of 2016-08-17 (bba6a03) and stream source is
 always the same.
 Issue happens both with 32 and 64 bit builds.

 Thanks,
 MB

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Ticket URL: <https://trac.ffmpeg.org/ticket/5783>
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