[FFmpeg-trac] #2847(avfilter:open): 3D_LUT_Filter seems to work incorrect

FFmpeg trac at avcodec.org
Fri Aug 9 16:20:34 CEST 2013

#2847: 3D_LUT_Filter seems to work incorrect
             Reporter:  rainer       |                    Owner:
  fritz                              |                   Status:  open
                 Type:  defect       |                Component:  avfilter
             Priority:  normal       |               Resolution:
              Version:  git-master   |               Blocked By:
             Keywords:  3d lut       |  Reproduced by developer:  1
  conversion                         |
             Blocking:               |
Analyzed by developer:  0            |

Comment (by ubitux):

 That format looks "unsupported": the 3DLUTSIZE directive is not supported
 in the code and likely break the {{{parse_dat()}}} code, because the only
 .dat sample I had had not those (only tuple values per line). Remove the 3
 first lines and it should work.

 Also note that there are tons of weird LUT format out there, without any
 reliable way of probing them. As a result, the parsing, and especially
 probing of those formats, is pretty weak.

Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2847#comment:7>
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