modules/imgcodecs/src/grfmt_webp.cpp:158:9: error: ignoring return value of function declared with 'nodiscard' attribute [-Werror,-Wunused-result]
  158 |         WebPAnimDecoderOptionsInit(&dec_options);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~
modules/imgcodecs/src/grfmt_webp.cpp:165:9: error: ignoring return value of function declared with 'nodiscard' attribute [-Werror,-Wunused-result]
  165 |         WebPAnimDecoderGetInfo(anim_decoder.get(), &anim_info);
      |         ^~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
modules/imgcodecs/src/grfmt_webp.cpp:219:9: error: ignoring return value of function declared with 'nodiscard' attribute [-Werror,-Wunused-result]
  219 |         WebPAnimDecoderGetNext(anim_decoder.get(), &buf, &timestamp);
      |         ^~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
modules/imgcodecs/src/grfmt_webp.cpp:449:5: error: ignoring return value of function declared with 'nodiscard' attribute [-Werror,-Wunused-result]
  449 |     WebPEncode(&config, &pic);

[ RUN      ] Encode_multi.multi/3, where GetParam() = ".webp"
[ERROR:0@13.871] global loadsave.cpp:1029 imwrite_ imwrite_('test.webp'): can't write data: OpenCV(4.12.0-dev) /home/ci/opencv/modules/imgcodecs/src/grfmt_webp.cpp:453: error: (-3:Internal error) Failed to encode animated WebP frame in function 'writeanimation'
/home/ci/opencv/modules/imgcodecs/perf/perf_decode_encode.cpp:119: Failure
Value of: imwrite("test" + GetParam(), vec)
  Actual: false
Expected: true
[ERROR:0@13.876] global loadsave.cpp:1529 imencode imencode(): can't encode data: OpenCV(4.12.0-dev) /home/ci/opencv/modules/imgcodecs/src/grfmt_webp.cpp:453: error: (-3:Internal error) Failed to encode animated WebP frame in function 'writeanimation'
  Encoded buffer size: 0 bytes, Compression ratio: 0.00%
params    =     ".webp"
termination reason:  reached maximum number of iterations
bytesIn   =          0
bytesOut  =          0
samples   =          1
outliers  =          0
frequency = 1000000000
min       =    4555828 = 4.56ms
median    =    4555828 = 4.56ms
gmean     =    4555828 = 4.56ms
gstddev   = 0.00000000 = 0.00ms for 97% dispersion interval
mean      =    4555828 = 4.56ms
stddev    =          0 = 0.00ms
[  FAILED  ] Encode_multi.multi/3, where GetParam() = ".webp" (59 ms)