[FFmpeg-trac] #2394(swscale:open): BGRA downscaling shifts colors (was: BGRA downscaling shift colors)
FFmpeg
trac at avcodec.org
Fri Mar 22 12:55:28 CET 2013
#2394: BGRA downscaling shifts colors
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Reporter: Cigaes | Owner:
Type: defect | Status: open
Priority: normal | Component: swscale
Version: git-master | Resolution:
Keywords: bgra | Blocked By:
Blocking: | Reproduced by developer: 1
Analyzed by developer: 0 |
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Changes (by cehoyos):
* status: new => open
* reproduced: 0 => 1
Comment:
Also reproducible with 0.6 with the following command(s):
$ ffmpeg -lavfi color=c=blue:s=128x128,format=bgra -f rawvideo bgra.raw
$ ffmpeg -lavfi color=c=blue:s=128x128,format=rgba -f rawvideo rgba.raw
$ ffmpeg06 -f rawvideo -pix_fmt bgra -s 128x128 -i bgra.raw -s 8x8 -f
rawvideo - | xxd
$ ffmpeg06 -f rawvideo -pix_fmt rgba -s 128x128 -i rgba.raw -s 8x8 -f
rawvideo - | xxd
Reproducible with --disable-mmxext, not reproducible with --disable-mmx
(once compilation is fixed).
-cpuflags -mmx crashes here
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2394#comment:2>
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