[FFmpeg-trac] #11448(swscale:new): swscale ignores param0/param1

[FFmpeg]

#11448: swscale ignores param0/param1
-------------------------------------+-----------------------------------
             Reporter:  b7j6abhi3q   |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  swscale
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-----------------------------------
Description changed by b7j6abhi3q:

Old description:

> Summary of the bug: Passing different values of param0 and param1 to the
> scale filter produces identical output when it shouldn't.
> How to reproduce:
> {{{
> % ffmpeg -i input -vf scale=-2:540:flags=bicubic:param0=1:param1=0 -f
> hash -
> SHA256=7083e8d529bc9639a0db1d9aff4253442fa227ac632e19151e863b91611c200d
> % ffmpeg -i input -vf scale=-2:540:flags=bicubic:param0=0:param=0.5 -f
> hash -
> SHA256=7083e8d529bc9639a0db1d9aff4253442fa227ac632e19151e863b91611c200d
>
> ffmpeg version N-118406-g957eb2323a-20250203
> }}}

New description:

 Summary of the bug: Passing different values of param0 and param1 to the
 scale filter produces identical output when it shouldn't.
 How to reproduce:
 {{{
 % ffmpeg -i input -vf scale=-2:540:flags=bicubic:param0=1:param1=0 -f hash
 -
 SHA256=7083e8d529bc9639a0db1d9aff4253442fa227ac632e19151e863b91611c200d
 % ffmpeg -i input -vf scale=-2:540:flags=bicubic:param0=0:param1=0.5 -f
 hash -
 SHA256=7083e8d529bc9639a0db1d9aff4253442fa227ac632e19151e863b91611c200d

 ffmpeg version N-118406-g957eb2323a-20250203
 }}}

--
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11448#comment:1>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker