[FFmpeg-trac] #5874(avcodec:open): tiff LZW compression does not compress enough

FFmpeg trac at avcodec.org
Thu Feb 6 08:29:19 EET 2020


#5874: tiff LZW compression does not compress enough
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             Reporter:  jsteinkamp   |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  tif          |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
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Comment (by Balling):

 Replying to [comment:8 jamrial]:
 > tiffcp from the libtiff package compresses it even more, from ~716k to
 ~691k. In contrast the output generated by libavcodec is ~884k.
 >
 > Our lzw encoder is apparently inefficient, so changing this to an
 enhancement request.

 I think it is a good idea to update this with Photoshop 2020 and latest
 tiffcp...

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Ticket URL: <https://trac.ffmpeg.org/ticket/5874#comment:9>
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