[FFmpeg-trac] #4596(avcodec:new): Blocks when decoding H.264 containing reference B-Frames encoded by Elemental

[FFmpeg]

#4596: Blocks when decoding H.264 containing reference B-Frames encoded by
Elemental
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             Reporter:  dprestegard  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  avcodec      |                  Version:
             Keywords:               |  unspecified
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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 When using recent Elemental software, enabling reference B-Frames results
 in block artifacts when decoding with ffplay and other software decoders
 using libavcodec like VLC.

 Hardware decoders do not exhibit the issue, and neither does Elecard
 StreamEye.

 elemental_bref_blocking.mp4 uploaded to the FTP for review.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4596>
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