[FFmpeg-trac] #4331(avcodec:closed): Wish: Lossless macroblock padding

[FFmpeg]

#4331: Wish: Lossless macroblock padding
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             Reporter:  richfife     |                    Owner:  (none)
                 Type:  enhancement  |                   Status:  closed
             Priority:  wish         |                Component:  avcodec
              Version:  unspecified  |               Resolution:  wontfix
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by James Lin):

 1. Why won't-fix?

 2. Any chance to reconsider?  My use case is that I have 1440x1080
 AVC/h.264 video that should be displayed with a 4:3 aspect ratio (which
 would correspond to square pixels). I'd like to burn it to a Blu-ray disc
 to be playable in Blu-ray players, but my understanding is that Blu-ray
 specifies that 1440x1080 video should be treated as 16:9 (which makes no
 sense to me, but I digress).  I would love to be able to add pillarboxing
 to make the frame size 1920x1080 without lossily re-encoding the existing
 content.
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Ticket URL: <https://trac.ffmpeg.org/ticket/4331#comment:3>
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