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[Matthew Petroff <798952@xxxxxxxxxxxxxxxxxx>]

This issue is still in the trunk. I ran into it producing test builds
with the new graph-cut seam generator. I had to change
src/vigra_impex/jpeg.cxx line 421 from "info.arith_code = TRUE;" to
"info.arith_code = FALSE;" to get the JPEGs produced to open in most
software.

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https://bugs.launchpad.net/bugs/798952

Title:
  vigra_impex bug creates 'arithmetic coded' JPEG output

Status in Enblend:
  Confirmed

Bug description:
  vigra_impex has a bug which effectively means all JPEG output is
  'arithmetic coded' (rather than huffman coded) if the version of
  libjpeg supports it.

  This is a problem as arithmetic coding isn't very portable, e.g. the
  enblend 4.0 in fedora f15 is creating these JPEGs whenever JPEG is
  selected for output.

  The upstream vigra fix is these two changesets:
  http://www.informatik.uni-hamburg.de/~meine/hg/vigra/rev/e54137017af7
  http://www.informatik.uni-hamburg.de/~meine/hg/vigra/rev/f5e29e0bdfe0

  It probably isn't worth backporting all this to enblend, a simple fix
  is to just comment out src/vigra_impex/jpeg.cxx line 421.

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