[FFmpeg-trac] #7686(avfilter:new): Wrong decision of pixel format in filtergraph

[FFmpeg]

#7686: Wrong decision of pixel format in filtergraph
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             Reporter:  mfcc64    |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  avfilter  |                  Version:  git-master
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
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 Summary of the bug:
 How to reproduce:
 {{{
 % ffmpeg -loglevel verbose -filter_complex "allrgb=d=0.1, lutyuv,
 format=yuv444p12be" -f null -

 [Parsed_allrgb_0 @ 0x1b29f40] size:4096x4096 rate:25/1 duration:0.100000
 sar:1/1
 [auto_scaler_0 @ 0x1bad300] w:iw h:ih flags:'bilinear' interl:0
 [Parsed_lutyuv_1 @ 0x1b2ab40] auto-inserting filter 'auto_scaler_0'
 between the filter 'Parsed_allrgb_0' and the filter 'Parsed_lutyuv_1'
 [auto_scaler_1 @ 0x1bae9c0] w:iw h:ih flags:'bilinear' interl:0
 [Parsed_format_2 @ 0x1b2a840] auto-inserting filter 'auto_scaler_1'
 between the filter 'Parsed_lutyuv_1' and the filter 'Parsed_format_2'
 [auto_scaler_0 @ 0x1bad300] w:4096 h:4096 fmt:rgb24 sar:1/1 -> w:4096
 h:4096 fmt:yuv444p sar:1/1 flags:0x2
 [auto_scaler_1 @ 0x1bae9c0] w:4096 h:4096 fmt:yuv444p sar:1/1 -> w:4096
 h:4096 fmt:yuv444p12be sar:1/1 flags:0x2

 }}}

 Note that the conversion is: rgb24 => yuv444p => yuv444p12be.
 I guess the correct conversion is: rgb24 => yuv444p12le => yuv444p12be
 (lutyuv supports yuv444p12le).

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Ticket URL: <https://trac.ffmpeg.org/ticket/7686>
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