#11583: Certain AV1 failed "-c copy" for no keyframe was recognized throughout
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             Reporter:  Nanasaki     |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  ffmpeg
              Version:  git-master   |               Resolution:
             Keywords:  corrupted    |               Blocked By:
  output                             |
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  1            |
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Changes (by MasterQuestionable):

 * cc: MasterQuestionable (added)
 * summary:  ffmpeg with certain files will output getting a 1kB output file
     => Certain AV1 failed "-c copy" for no keyframe was recognized
     throughout

Comment:

 ͏    Such input is likely itself faulty:
 ͏    For the whole ~ 23 min duration had no single keyframe... (and giving
 no apparent visual artifact)
 ͏    Either self mistagged, or misrecognized by the decoder?

 ͏    However the Inter-frame compression be arranged:
 ͏    There must be at least 1 keyframe, for any normally decodable video.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11583#comment:3>
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