Hi! I want to help! Please see my XS interface for Perl that I've been developing: https://github.com/revmischa/av-streamer
Sounds like we want the same thing: a slightly higher-level interface, comprised of a lot of the code in ffmpeg.c/avconv.c in a reusable form. On Wed, Nov 30, 2011 at 4:30 PM, Nathan <[email protected]> wrote: > Hi, I'm the (new) maintainer of AVbin, a project setting out to > provide a stable ABI for the Pyglet project (and any other project > that finds it useful) to decode audio/video by thinly wrapping FFmpeg > and providing binary releases for various platforms. The project was > abandoned in 2008, but I volunteered to try to revive it several weeks > ago. The project home page is at http://avbin.github.com and the > repository is at https://github.com/avbin/avbin > > > I'll admit up front, I'm not (yet) an expert at debugging C code > compilation and linking problems, but I'm learning fast! I've tried > to get some help specifically with the linking problems we're > experiencing from the FFmpeg mailing lists, but so far the response > from those on the FFmpeg lists has not been encouraging. > > I only recently learned of the Libav fork, and the code we're > currently trying to put out is pre-fork (from last December), so I > thought that perhaps this would be a good place to turn in the hopes > of a warmer response. > > The FFmpeg version I'm dealing with is r25864 from the old subversion > repository at svn://svn.mplayerhq.hu/ffmpeg/trunk (that revision is > from 2010-12-03). > > > (Disclaimer: The rest of this email is a copy of what I sent to the > FFmpeg libav-user mailing list.) > > THE PROBLEM > > I'm trying to produce new binary releases for AVbin ( > http://avbin.github.com ), but I'm running into a linking error when I > try to link FFmpeg's libraries into the avbin library on an up-to-date > version of Ubuntu 11.10 amd64 in a VMware VM: > > ld -shared -soname libavbin.so.8 -o dist/linux-x86-64/libavbin.so.8 > build/avbin.o -whole-archive ffmpeg/libavformat/libavformat.a > ffmpeg/libavcodec/libavcodec.a ffmpeg/libavutil/libavutil.a > ffmpeg/libswscale/libswscale.a -no-whole-archive -R /usr/local/lib -R > . > ld: dist/linux-x86-64/libavbin.so.8: version node not found for symbol > av_dup_packet@LIBAVFORMAT_52 > ld: failed to set dynamic section sizes: Bad value > make: *** [dist/linux-x86-64/libavbin.so.8] Error 1 > > I've spent several hours googling, but even after reading ".symver" > man pages and every post I can find relating to the error, I still > don't really understand what a "version node" is, why it is needed, > what is wrong with it in this particular case, or how to fix it. > > > EASY STEPS TO DUPLICATE > > git clone git://github.com/AVbin/AVbin.git > cd AVbin > git checkout origin/merge-micah > ./build.sh linux-x86-64 > > (Note: The actual commit on the merge-micah branch at the time of this > writing is 35bc9c97) > > > MORE RELEVANT INFORMATION > > Environment (Inside a VMware VM): > > $ uname -a > Linux nathan-ubuntu11 3.0.0-13-generic #22-Ubuntu SMP Wed Nov 2 > 13:27:26 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux > > $ gcc --version > gcc (Ubuntu/Linaro 4.6.1-9ubuntu3) 4.6.1 > > FFmpeg configure options: > > --disable-ffmpeg > --disable-ffserver > --disable-ffplay > --disable-debug > --disable-encoders > --disable-muxers > --disable-protocols > --enable-protocol=file > --disable-devices > --disable-network > --disable-zlib > --enable-shared > --enable-static > --disable-mmx > --arch=x86_64 > --enable-pthreads > --disable-bzlib > > > Any ideas? > > ~ Nathan > _______________________________________________ > libav-api mailing list > [email protected] > https://lists.libav.org/mailman/listinfo/libav-api _______________________________________________ libav-api mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-api
