[FFmpeg-devel] [PATCH] Force users to specify memalign_hack in configure

Michael Kostylev mik
Mon Mar 3 23:46:47 CET 2008

At Mon, 3 Mar 2008 12:18:27 -0500,
Ronald S. Bultje wrote:

 > I don't understand the logic here. So the default compilation of ffmpeg on
 > *DOS (and such) should fail to run because you want people to manually
 > enable this memalign hack? Why? Is there ever a case that ffmpeg runs fine
 > on *DOS (and such) without enabling memalign_hack (and no, --disable-mmx is
 > not a sufficient answer here).

No, either crashes with page fault, or (only under win9x) exits with malloc error.

  configuration: --cross-compile --cross-prefix=i386-pc-msdosdjgpp- --target-os=freedos --disable-mmx --disable-network --enable-gpl --enable-pp --enable-swscaler --enable-zlib --enable-libmp3lame --enable-libxvid --enable-libvorbis --enable-libfaac --enable-libtheora --enable-libx264 --prefix=/dev/env/DJDIR
  libavutil version: 49.6.0
  libavcodec version: 51.50.1
  libavformat version: 52.7.0
  libavdevice version: 52.0.0
  built on Mar  3 2008 23:16:23, gcc: 4.2.2
(null): memory allocation error occured


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