Source: libwebm Version: 1.0.0.29-1 Tags: sid Severity: important X-Debbugs-CC: debian-s...@lists.debian.org debian-h...@lists.debian.org debian-powe...@lists.debian.org debian-sp...@lists.debian.org vasek.ge...@gmail.com
Hi all, Package libwebm was introduced into Debian in 2021 for .webm support (and to avoid library vendor copies). However, its unit test has been broken on big-endian architectures since very beginning as shown in buildd page at https://buildd.debian.org/status/package.php?p=libwebm (s390x/hppa/powerpc/ ppc64/sparc64 for 1.0.0.30-2 and earlier), causing FTBFS. Currently an convenient copy of libwebm is bundled and embedded in src:aom, and embedded libwebm lacks unit tests. When I am working on src:aom and trying to replace bundled libwebm with the packaged one, current failed unit tests in libwebm will need some handling, or at least in the release archtiecture (s390x, such as https://buildd.debian.org/status/fetch.php?pkg=libwebm&arch=s390x&ver=1.0.0.30-2&stamp=1687373358&raw=0 ): ================================================== ./testing/mkvmuxer_tests.cc:863: Failure Expected equality of these values: muxer_mm.luminance_min() Which is: 30 parser_mm->luminance_min Which is: 0 ./testing/mkvmuxer_tests.cc:864: Failure Expected equality of these values: muxer_mm.luminance_max() Which is: 40 parser_mm->luminance_max Which is: 0 ./testing/mkvmuxer_tests.cc:865: Failure Expected equality of these values: muxer_mm.r()->x() Which is: 0.1 parser_mm->r->x Which is: 0 ./testing/mkvmuxer_tests.cc:866: Failure Expected equality of these values: muxer_mm.r()->y() Which is: 0.2 parser_mm->r->y Which is: 0 ./testing/mkvmuxer_tests.cc:867: Failure Expected equality of these values: muxer_mm.g()->x() Which is: 0.1 parser_mm->g->x Which is: 0 ./testing/mkvmuxer_tests.cc:868: Failure Expected equality of these values: muxer_mm.g()->y() Which is: 0.2 parser_mm->g->y Which is: 0 ./testing/mkvmuxer_tests.cc:869: Failure Expected equality of these values: muxer_mm.b()->x() Which is: 0.1 parser_mm->b->x Which is: 0 ./testing/mkvmuxer_tests.cc:870: Failure Expected equality of these values: muxer_mm.b()->y() Which is: 0.2 parser_mm->b->y Which is: 0 ./testing/mkvmuxer_tests.cc:871: Failure Expected equality of these values: muxer_mm.white_point()->x() Which is: 0.1 parser_mm->white_point->x Which is: 0 ./testing/mkvmuxer_tests.cc:872: Failure Expected equality of these values: muxer_mm.white_point()->y() Which is: 0.2 parser_mm->white_point->y Which is: 0 [ FAILED ] MuxerTest.Colour (0 ms) [ RUN ] MuxerTest.ColourPartial [ OK ] MuxerTest.ColourPartial (0 ms) [ RUN ] MuxerTest.Projection ./testing/mkvmuxer_tests.cc:930: Failure Expected equality of these values: muxer_proj.pose_yaw() Which is: 1 parser_proj->pose_yaw Which is: 0 ./testing/mkvmuxer_tests.cc:931: Failure Expected equality of these values: muxer_proj.pose_pitch() Which is: 2 parser_proj->pose_pitch Which is: 0 ./testing/mkvmuxer_tests.cc:932: Failure Expected equality of these values: muxer_proj.pose_roll() Which is: 3 parser_proj->pose_roll Which is: 0 [ FAILED ] MuxerTest.Projection (0 ms) =================================================== I am looking for help from porters with experience in big-endian architectures on debugging of the test failures. Given the high popcon of reverse dependencies (src:aom, 30000+), I may allow unittest failures for now but still keep this bug report open against src:libwebm. Any help would be appreciated. Best, Boyuan Yang
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