[FFmpeg-trac] #10101(undetermined:new): filter-pixfmts-scale test fails when --enable-swscale but --disable-swscale-alpha

FFmpeg trac at avcodec.org
Fri Dec 9 14:58:26 EET 2022

#10101: filter-pixfmts-scale test fails when --enable-swscale but --disable-
             Reporter:  Atemu        |                     Type:  defect
               Status:  new          |                 Priority:  minor
            Component:               |                  Version:  4.4.3
  undetermined                       |
             Keywords:  swscale      |               Blocked By:
  configuration                      |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
 Repro: Try to build ffmpeg with --enable-swscale and --disable-swscale-

 I'm not sure why you'd want to do that but the options do exist, so they
 should work.

 Additionally, swscale-alpha does not appear in the build configuration
 overview which made it unnecessarily hard to diagnose this issue.
 I stumbled upon this issue while trying to refactor Nixpkgs ffmpeg build.

 Error output for googlability:

 --- ./tests/ref/fate/filter-pixfmts-scale       2022-04-14
 20:13:38.000000000 +0000
 +++ tests/data/fate/filter-pixfmts-scale        2022-12-09
 12:17:13.038344819 +0000
 @@ -19,9 +19,9 @@
  bgra64be            4e6a1b9f9c18b881c27d76611d45f737
  bgra64le            efeee0abcc658ebcff049d5e74d74943
  gbrap               4a100f750ac846b34bfeef0d6893c3de
 -gbrap10be           dc6aea3559ea4fcdda1ccc4f23d2f2fb
 +gbrap10be           50735fbc471a5ac5a6645c85881f3670
  gbrap10le           6e1cba57029fdf0f9d46b5e5cd55112b
 -gbrap12be           dbe3a662c016563529032cd4dfb80262
 +gbrap12be           58170165829484b3db4a3b9165198987
  gbrap12le           24f5ecb32435b73353517e017c165e31
  gbrap16be           31968e6872a46e8174fb57f8920ed10d
  gbrap16le           8c6758f33671b673b6d30969fc05a23d
 TEST    vsynth2-dv-hd
 TEST    vsynth2-dv-fhd
 Test filter-pixfmts-scale failed. Look at tests/data/fate/filter-pixfmts-
 scale.err for details.
 make: *** [tests/Makefile:256: fate-filter-pixfmts-scale] Error 1
 make: *** Waiting for unfinished jobs....

 (Version is actually 4.4.2 but that's not in the list; we're in the
 process of upgrading.)
Ticket URL: <https://trac.ffmpeg.org/ticket/10101>
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