[FFmpeg-trac] #63(undetermined:open): Purple bars appear when scaling a video with ffmpeg for windows

[FFmpeg]

#63: Purple bars appear when scaling a video with ffmpeg for windows
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Reporter:  thebombzen                |       Owner:
    Type:  defect                    |      Status:  open
Priority:  normal                    |   Component:  undetermined
 Version:  git                       |  Resolution:
Keywords:  purple bars scale glitch  |  Blocked By:
Blocking:                            |  Reproduced:  0
Analyzed:  0                         |
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Comment (by vickas54):

 Maybe a good idea not to close this yet...looks like it might be related
 to asm optimizations??

 It doesn't occur in the 32-bit build, (still running on Win7 64-bit of
 course) but it runs alot slower in the 32-bit build (about half as fast).
 Couple with the above statement about --enable-runtime-cpudetect causing
 it, I'm guessing some optimization code doesn't work very well in a 64-bit
 windows environment. I also suspect that the 32-bit build isn't actually
 using optimizations, considering it runs about half as fast. Perhaps this
 is only when running on 64-bit windows...

 At least the 32-bit build gives correct output...

 I'm using hawkeye's windows binaries from hawkeye.arrozcru.org.
 Unfortunately I don't have MinGW installed right now, so I can't try out
 any different compiler flags.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/63#comment:8>
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