#11448: swscale ignores param0/param1
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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 |
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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
}}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/11448#comment:1>
FFmpeg <https://ffmpeg.org>
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