[Octave-bug-tracker] [bug #64452] [octave forge] (struct) Fix cleaning of files in src/Makefile.in

[Rafael Laboissière]

URL:
  <https://savannah.gnu.org/bugs/?64452>

                 Summary: [octave forge] (struct) Fix cleaning of files in
src/Makefile.in
                   Group: GNU Octave
               Submitter: rlaboiss
               Submitted: Thu 20 Jul 2023 02:50:16 PM UTC
                Category: Octave Forge Package
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: other
         Discussion Lock: Any
        Operating System: GNU/Linux
           Fixed Release: None
         Planned Release: None


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Follow-up Comments:


-------------------------------------------------------
Date: Thu 20 Jul 2023 02:50:16 PM UTC By: Rafael Laboissière <rlaboiss>
This is probably a resurrection of bug #58451. The ppc64el autobuilder for the
Debian package octave-video (version 2.1.1) choked on the BIST in
VideoWriter.m that writes/reads rainbow.mp4. The full log can be seen
[https://buildd.debian.org/status/fetch.php?pkg=octave-video&arch=ppc64el&ver=2.1.1-1&stamp=1689797515&raw=0
here] and this is the relevant part:


***** test
 fn = fullfile (tempdir(), "rainbow.mp4");
 width = 200;
 height = 150;
 nframes = 120;
 p = permute (rainbow (width), [3 1 2]);
 raw_video = zeros (height, width, 3, nframes);
 w = VideoWriter (fn);
 for k=1:nframes
   ps = circshift (p, k * 6);
   img = uint8 (255 * repmat (ps, height, 1));
   raw_video (:, :, :, k) = img;
   writeVideo (w, img);
 endfor
 close (w)
 ## read video and compare
 clear -x raw_video fn
 r = VideoReader (fn);
 for k=1:size (raw_video, 4)
   img = readFrame (r);
   d = double (img) - raw_video(:,:,:,k);
   # FIXME: This write/read roundtrip check doesn't work well due to
compression artifacts
   #        see also bug #58451 (https://savannah.gnu.org/bugs/?58451)
   #        what would be a better way?
   rel_err = sum (abs(d(:)))/numel(d)/255;
   warn_thres = 0.025;
   if (rel_err > warn_thres)
     warning ("The realtive deviation exceeds the given threshold (%.3f >
%.3f).\n\
     Please inspect '%s' manually. You should see a horizontal rainbow running
from left to right.", rel_err, warn_thres, fn);
   endif
   assert (rel_err < 2 * warn_thres)
 endfor
 close (r);
[swscaler @ 0x100115a7840] ALTIVEC: Color Space BGR24
warning: The realtive deviation exceeds the given threshold (0.148 > 0.025).
     Please inspect '/tmp/rainbow.mp4' manually. You should see a horizontal
rainbow running from left to right.
warning: called from
    __test__ at line 29 column 6
    test at line 682 column 11
    /tmp/tmp.U4KNDwlVn4 at line 14 column 31

!!!!! test failed
assert (rel_err < 2 * warn_thres) failed









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