[FFmpeg-trac] #872(avutil:new): av_rescale_q returns wrong 64bits in arm cortex-a8 processor
FFmpeg
trac at avcodec.org
Mon Jan 16 13:57:24 CET 2012
#872: av_rescale_q returns wrong 64bits in arm cortex-a8 processor
--------------------------------------+-----------------------------------
Reporter: kaijun61 | Owner: michael
Type: defect | Status: new
Priority: important | Component: avutil
Version: git-master | Resolution:
Keywords: av_rescale_q | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by cehoyos):
I am not sure I understand: You wrote above that
c6c2dfcf15c1d93b2189adff6f71c5c4b6b05338 works fine but that
e1a86d03855f2fb1bf7961efd6794ddd9226f228 shows the problem you describe.
So you can run:
{{{
$ make distclean
$ git bisect start
$ git bisect good c6c2dfcf15c1d93b2189adff6f71c5c4b6b05338
$ git bisect bad e1a86d03855f2fb1bf7961efd6794ddd9226f228
$ ./configure && make
}}}
Then test if the problem occurs with the resulting binary or not and
repeat the following lines until the responsible commit is found (git
bisect good if the problem does not occur, git bisect bad if you can
reproduce the issue):
{{{
$ make distclean && git bisect good / bad
$ ./configure && make
}}}
When you are finished, run
{{{
$ make distclean && git bisect reset
}}}
to get back to the revision before running the tests.
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/872#comment:12>
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