On Wed, Feb 23, 2022 at 09:45:53PM +0200, Martin Storsjö wrote:
> The range parameters need to be set up before calling
> sws_init_context (which selects which fastpaths can be used;
> this gets called by sws_getContext); solely passing them via
> sws_setColorspaceDetails isn't enough.
> 
> This fixes producing full range YUV range output when doing
> YUV->YUV conversions between different YUV color spaces.
> 
> Signed-off-by: Martin Storsjö <martin@martin.st>
> ---
>  libswscale/utils.c                | 11 ++++++++---
>  tests/fate/libswscale.mak         | 16 ++++++++++++++++
>  tests/ref/fate/sws-yuv-colorspace |  6 ++++++
>  tests/ref/fate/sws-yuv-range      |  6 ++++++
>  4 files changed, 36 insertions(+), 3 deletions(-)
>  create mode 100644 tests/ref/fate/sws-yuv-colorspace
>  create mode 100644 tests/ref/fate/sws-yuv-range

LGTM

tested on mingw32/64 + wine / linux x86 32/64bit, arm/mips qemu

thx

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Awnsering whenever a program halts or runs forever is
On a turing machine, in general impossible (turings halting problem).
On any real computer, always possible as a real computer has a finite number
of states N, and will either halt in less than N cycles or never halt.