[FFmpeg-trac] #9898(ffmpeg:new): Different result using FFmpeg 5.1 and 5.0.1 with -color_trc log / log_sqrt

FFmpeg trac at avcodec.org
Wed Aug 31 12:51:53 EEST 2022


#9898: Different result using FFmpeg 5.1 and 5.0.1 with -color_trc log / log_sqrt
-------------------------------------+-------------------------------------
             Reporter:  gabriele_ls  |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:  ffmpeg       |                  Version:
                                     |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I'm using FFmpeg to convert some video files shot in Slog3 with a Sony A7S
 III camera. I just discovered that I get different results using the
 command below on FFmpeg versions 5.1 and 5.0.1.

 This is the command I'm using:

 {{{
 % ffmpeg -i input -map 0:0 -map 0:1 -c:a aac -ab 320k -c:v libx264 -crf 15
 -s 960x540 -pix_fmt yuv422p10le -profile:v high422 -preset fast -g 1
 -color_trc log_sqrt -color_range jpeg -o output
 }}}

 I'm on Windows 10, and I'm using the builds coming from CODEX FFMPEG
 (https://www.gyan.dev/ffmpeg/builds/).

 You can see an animated comparison of the results I'm getting here:
 https://dsc.cloud/3c482e/animated_comparison.gif.

 You can download sample input and output files here:
 https://we.tl/t-phTLinUeSh
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9898>
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