Re: [Vxl-maintainers] vidl1: avifile vs ffmpeg (+libav)

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Matt,

  I am looking at:

http://vxl.svn.sf.net/viewvc/vxl?view=revision&revision=33908

  However it does not include some portion of the current debian patch:

http://anonscm.debian.org/viewvc/debian-med/trunk/packages/vxl/trunk/debian/patches/fix_libav07.patch?view=markup

  Typically I see no difference for
core/vidl/vidl_ffmpeg_istream_v2.txx in 1.14.0 and trunk, while it
clearly does not compile on debian/sid with libav (ffmpeg fork for
debian and derivatives).

1.
This is either an issue with libav/ffmpeg version. I am not sure what
Ubuntu is shipping but you could compile the debian package on your
Ubuntu machine. Eg:

$ dget -u http://ftp.de.debian.org/debian/pool/main/liba/libav/libav_0.7.2-1.dsc
$ cd libav-0.7.2
$ dpkg-buildpackage -rfakeroot -us -uc
$ sudo dpkg -i ../*.deb

dpkg may complains you are missing build dependencies, just install
them manually, eg:

$ sudo apt-get install libschroedinger-dev

If that helps here is what I have on my system:

$ apt-cache policy libavformat-dev
libavformat-dev:
  Installed: 4:0.7.2-1
  Candidate: 4:0.7.2-1+b1
  Version table:
     4:0.7.2-1+b1 0
        500 http://ftp.fr.debian.org/debian/ sid/main amd64 Packages
 *** 4:0.7.2-1 0
        100 /var/lib/dpkg/status

2.
We are not building vxl the same way, here are the options we are
using for debian:

http://anonscm.debian.org/viewvc/debian-med/trunk/packages/vxl/trunk/debian/rules?view=markup

CMAKE_FLAGS = \
  -DCMAKE_INSTALL_PREFIX:PATH=/usr \
  -DCMAKE_SKIP_RPATH:BOOL=ON \
  -DBUILD_SHARED_LIBS:BOOL=ON \
  -DVXL_USING_NATIVE_ZLIB:BOOL=ON \
  -DVXL_USING_NATIVE_JPEG:BOOL=ON \
  -DVXL_USING_NATIVE_MPEG2:BOOL=ON \
  -DVXL_USING_NATIVE_PNG:BOOL=ON \
  -DVXL_USING_NATIVE_TIFF:BOOL=ON \
  -DVXL_USING_NATIVE_SHAPELIB:BOOL=ON \
  -DVXL_USING_NATIVE_GEOTIFF:BOOL=ON \
  -DVXL_USING_NATIVE_EXPAT:BOOL=ON \
  -DBUILD_VGUI:BOOL=ON \
  -DBUILD_BGUI3D:BOOL=ON \
  -DVXL_BUILD_DCMTK:BOOL=ON \
  -DAVIFILE_INCLUDE_DIR:PATH=/usr/include/avifile-0.7 \
  -DBUILD_OXL:BOOL=ON \
  -DBUILD_CORE_GEOMETRY:BOOL=ON \
  -DBUILD_CORE_IMAGING:BOOL=ON \
  -DBUILD_CORE_NUMERICS:BOOL=ON \
  -DBUILD_CORE_PROBABILITY:BOOL=ON \
  -DBUILD_CORE_SERIALISATION:BOOL=ON \
  -DBUILD_CORE_UTILITIES:BOOL=ON \
  -DBUILD_CORE_VIDEO:BOOL=ON \
  -DBUILD_EXAMPLES:BOOL=OFF \
  -DBUILD_TESTING:BOOL=OFF

Thanks again for your help !

On Sun, Dec 18, 2011 at 5:01 AM, Matt Leotta <mat...@ki...> wrote:
> Mathieu,
>
> I've committed a change to VXL that allows the vidl library to compile
> against the ffmpeg package in Ubuntu 11.10.  I just tested it and it
> also seems to compile against the release/0.7 branch of libav.
> However, there is a warning about use of one deprecated API.
>
> --Matt
>
>
> On Sat, Dec 17, 2011 at 1:27 PM, Matt Leotta <mat...@ki...> wrote:
>> Mathieu,
>>
>> You should feel free to remove the avifile dependency from the current
>> vxl release package.  It is only required by the deprecated core/vidl1
>> and a few other old and unmaintained bits of code in contrib.  There
>> should be no problem building with all the AVIFILE CMake variables set
>> to IGNORE or NOT-FOUND.  I've been building this way for years.  In
>> fact, just this week we finally removed the deprecated core/vidl1
>> library, so the next stable vxl release will have no avifile
>> dependency in the core libraries.
>>
>> As for ffmpeg/libav we intend to continue support for that in
>> core/vidl.  I tend to update core/vidl occasionally to build against
>> newer versions of ffmpeg/libav.  I also try to keep the code backward
>> compatible with older versions of ffmpeg/libav.  There is no organized
>> plan for these updates, I usually just patch vxl whenever I update my
>> Ubuntu release and find that the packaged version no longer works.  I
>> have a patch ready now that will fix vidl to work with whatever
>> version of ffmpeg is currently distributed with Ubuntu 11.10, I think
>> it's ffmpeg 0.6.  It seems I forgot to push that upstream to vxl, so
>> I'll do that today.
>>
>> Are you looking to target a particular version of libav?  If you point
>> me at a specific version of libav, or better yet a git commit hash,
>> then I can preemptively add support for it.
>>
>> Thanks for maintaining Debian packages!
>>
>> --Matt
>>
>>
>> On Sat, Dec 17, 2011 at 6:30 AM, Mathieu Malaterre
>> <mat...@gm...> wrote:
>>> Dear all,
>>>
>>>  VXL has been packaged for debian system with avifile binding.
>>> However this library seems dead upstream, and for the next release of
>>> debian this avifile library will be removed [1]. I am tempted to
>>> removed avifile right now (vxl 1.14 release) however the ffmpeg
>>> binding are far from perfect (I wrote them) [2]. So my questions are:
>>>
>>> - are you planning to maintain the avifile binding for the next vxl release ?
>>> - are you planning to update vxl to compile with ffmpeg before/after
>>> the libav transition ?
>>>
>>> Thanks much !
>>>
>>>
>>> [1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=647787
>>> [2] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=638251
>>>
>>> --
>>> Mathieu
>>>
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-- 
Mathieu