Bug#625944: libavcodec52: JPEG produced with Intel JPEG lib loaded upside-down

[Julien BLACHE]

Package: libavcodec52
Version: 4:0.6.2-3
Severity: normal

Hi,

JPEG images produced by the Intel JPEG library are loaded upside-down
and with some corruption.

There is an explicit check for the Intel library in the mjpeg decoder,
as flipping the image was found to be necessary years ago; inhibiting
this fixes the issue.

The images I have here are from version 1.51.12.44 of the library; either
the library has been fixed at some point in time, or some other way to
determine whether the image needs to be flipped is needed.

Test images available on request.

JB.

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.37-2-amd64 (SMP w/2 CPU cores)
Locale: LANG=C, LC_CTYPE=fr_FR at euro (charmap=ISO-8859-15)
Shell: /bin/sh linked to /bin/bash

Versions of packages libavcodec52 depends on:
ii  libavutil50             4:0.6.2-3        Libav utility library
ii  libc6                   2.13-2           Embedded GNU C Library: Shared lib
ii  libdirac-encoder0       1.0.2-3          open and royalty free high quality
ii  libfaad2                2.7-6            freeware Advanced Audio Decoder - 
ii  libgsm1                 1.0.13-3         Shared libraries for GSM speech co
ii  libopenjpeg2            1.3+dfsg-4       JPEG 2000 image compression/decomp
ii  libschroedinger-1.0-0   1.0.10-2         library for encoding/decoding of D
ii  libspeex1               1.2~rc1-1        The Speex codec runtime library
ii  libtheora0              1.1.1+dfsg.1-3   The Theora Video Compression Codec
ii  libva1                  1.0.12-2         Video Acceleration (VA) API for Li
ii  libvorbis0a             1.3.2-1          The Vorbis General Audio Compressi
ii  libvorbisenc2           1.3.2-1          The Vorbis General Audio Compressi
ii  libvpx0                 0.9.6-1          VP8 video codec (shared library)
ii  zlib1g                  1:1.2.3.4.dfsg-3 compression library - runtime

libavcodec52 recommends no packages.

libavcodec52 suggests no packages.

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