[FFmpeg-trac] #764(avcodec:new): Increasing robustness of runlength decoding for scantable access in mpeg12.c

[FFmpeg]

#764: Increasing robustness of runlength decoding for scantable access in
mpeg12.c
-------------------------------------+-------------------------------------
             Reporter:  erik         |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  unspecified  |               Resolution:
             Keywords:  mpeg         |               Blocked By:
  robustness                         |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by reimar):

 Don't you think it would have helped a lot if you had mentioned you used
 the "fast" flag?
 While its effect for decoding may not be fully documented the point if
 "fast" is to decode as fast as possible. It is not intended to be used for
 corrupted streams. As long as it is not exploitable crashing is perfectly
 acceptable if it allows for faster code, and error concealment is unlikely
 to work.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/764#comment:13>
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