[FFmpeg-trac] #3874(avcodec:open): tiff encoder creates broken odd width yuv files

FFmpeg trac at avcodec.org
Mon Oct 13 15:34:51 CEST 2014

#3874: tiff encoder creates broken odd width yuv files
             Reporter:  ami_stuff    |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  tif tiffenc  |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
Changes (by kurosu):

 * keywords:  tif => tif tiffenc


 Replying to [comment:11 ami_stuff]:
 > Applied, but effect is the same - green artefact when viewing output
 tiff with IrfanView.

 Don't test with IrfanView, or Gimp, or XnView. I've just tested, these
 ones have broken output, but libtiff (eg tiff2rgba) and ffmpeg do not. I
 suspect most softwares do not abide by the rule set in libtiff, encode
 extended image data if need be.

 Second, are the softwares you use able to decode YUV with chroma
 subsampling produced by either libtiff or even themselves? Is their output
 decodable by libtiff? By themselves?

 If you do have a file not produced by ffmpeg but that decodes well in both
 libtiff and some software, that would be interesting.

Ticket URL: <https://trac.ffmpeg.org/ticket/3874#comment:12>
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