[FFmpeg-trac] #9(swscale:new): libswscale MMX2 giving videos a pink lined overlay

[FFmpeg]

#9: libswscale MMX2 giving videos a pink lined overlay
----------------------+----------------------
Reporter:  bizzehdee  |       Owner:  michael
    Type:  defect     |      Status:  new
Priority:  normal     |   Component:  swscale
 Version:  git        |  Resolution:
Keywords:             |  Blocked By:
Blocking:             |  Reproduced:  0
Analyzed:  0          |
----------------------+----------------------

Comment (by bl4ze):

 I am having the same problems with the daily builds.
 [http://c3249862.r62.cf0.rackcdn.com/input-001.mkv]
 [http://c3249862.r62.cf0.rackcdn.com/output.mjpeg]

 FFmpeg downloaded from [http://research.m1stereo.tv/ffmpeg/snapshots/]
 ([http://hawkeye.arrozcru.org/] builds, either 32 or 64 bit give the same
 results])

 {{{
 ffmpeg -i input-001.mkv -vf "crop=1920:803:0:138,scale=1280:544" -vcodec
 mjpeg output.mjpeg
 }}}

 {{{
 ffmpeg version git-N-29397-g075933a, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Apr 27 2011 02:17:27 with gcc 4.5.0 20100414 (Fedora MinGW
 4.5.0-1.fc14)
   configuration: --prefix=/var/www/users/research/ffmpeg/snapshots/build
 --arch=x86 --target-os=mingw32 --cross-prefix=i686-pc-mingw32-
 --cc='ccache i686-pc-mingw32-gcc' --enable-w32threads --enable-memalign-
 hack --enable-runtime-cpudetect --enable-cross-compile --enable-static
 --disable-shared --extra-libs='-lws2_32 -lwinmm' --extra-cflags='--static
 -I/var/www/users/research/ffmpeg/snapshots/build/include' --extra-
 ldflags='-static -L/var/www/users/research/ffmpeg/snapshots/build/lib'
 --enable-bzlib --enable-zlib --enable-gpl --enable-version3 --enable-
 nonfree --enable-libx264 --enable-libspeex --enable-libtheora --enable-
 libvorbis --enable-libfaac --enable-libxvid --enable-libopencore-amrnb
 --enable-libopencore-amrwb --enable-libmp3lame --enable-libvpx --disable-
 decoder=libvpx
   libavutil    51.  0. 0 / 51.  0. 0
   libavcodec   53.  1. 0 / 53.  1. 0
   libavformat  53.  0. 3 / 53.  0. 3
   libavdevice  53.  0. 0 / 53.  0. 0
   libavfilter   2.  0. 0 /  2.  0. 0
   libswscale    0. 13. 0 /  0. 13. 0
 }}}

 Builds before April didn't have any problem. I noticed that MMX2 was used,
 while I never saw that in the Win32/64 autobuilds before.

 Is it possible to force resize filters such as lanczos to use the pure C
 code? -sws_flags lanczos-mmx2 gave the same result.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/9#comment:23>
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