"FAILED: 'planes == sizeof(yuvp16) / sizeof(*yuvp16)' at ../src/tests/libav.c:88" on s390x

This is more like a FYI … having a working libplacebo on s390x is not a must.

The build of libplacbo 3.120.3 on Debian's s390x architecture failed with:

11/11 libav.c              FAIL           0.01s (exit status 1)

--- command ---
10:12:26 /<<PKGBUILDDIR>>/obj-s390x-linux-gnu/src/test.libav.c
--- stderr ---
=== FAILED: 'planes == sizeof(yuvp16) / sizeof(*yuvp16)' at ../src/tests/libav.c:88

The full build log is available at https://buildd.debian.org/status/fetch.php?pkg=libplacebo&arch=s390x&ver=3.120.3-1&stamp=1624615949&raw=0.