[FFmpeg-trac] #7124(swscale:new): Unexpected results from YUV-RGB color space conversion optimization on POWER8/LE

FFmpeg trac at avcodec.org
Wed Apr 4 10:46:28 EEST 2018


#7124: Unexpected results from YUV-RGB color space conversion optimization on
POWER8/LE
-------------------------------------+-------------------------------------
             Reporter:  seiko        |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:  swscale      |                  Version:
             Keywords:  Altivec,     |  unspecified
  VSX, ppc64le                       |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 It seems current implantation of Altivec doesn't support little-endian.

 FFmpeg was compiled as:
 ./configure --prefix=/usr --extra-libs="-lpthread -lm" --enable-gpl
 --enable-libvpx --enable-libx264 --enable-nonfree --enable-shared
 --enable-avresample

 Run time options:
 ffmpeg -i ./Sintel.mp4 -filter:v fps=fps=1/60 /tests/before/frames/%0d.png

 A full report about it could be found on an exciting issue at
 https://github.com/opencv/opencv/issues/11034

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Ticket URL: <https://trac.ffmpeg.org/ticket/7124>
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