[FFmpeg-trac] #11585(ffmpeg:new): Error converting 10bit to 8bit and vice-versa (Operation not supported)

[FFmpeg]

#11585: Error converting 10bit to 8bit and vice-versa (Operation not supported)
-------------------------------------+-------------------------------------
             Reporter:  Paul         |                     Type:  defect
  Pacifico                           |
               Status:  new          |                 Priority:  important
            Component:  ffmpeg       |                  Version:  git-
                                     |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 **Summary of the bug:**

 I can't convert between colorspaces with the latest ffmpeg git version.

 **10bit source file to 8bit x264:**
 [swscaler @ 0x1316c0000] Unsupported input (Operation not supported):
 fmt:yuv422p10le csp:bt709 prim:bt709 trc:(null) -> fmt:yuv420p csp:bt709
 prim:bt709 trc:(null)

 **8bit source file to 10bit prores:**
 [swscaler @ 0x151cd8000] Unsupported input (Operation not supported):
 fmt:yuv420p csp:bt709 prim:reserved trc:reserved -> fmt:yuv422p10le
 csp:bt709 prim:reserved trc:reserved

 How to reproduce:
 {{{
 % ffmpeg -i 10bit-source-file.mov -c:v libx264 -an -pix_fmt yuv420p
 output.mp4
 ffmpeg version N-119450-g244ad944e9
 built on Mac OS 15.0 ARM
 }}}

 Paul.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11585>
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