On 03/11/16 20:58, Matteo Naccari wrote:
Hi Sven,
Thanks for your reply! I've also tried with the space between the two -L
command but same as before.
Did you put the path to your boost libraries in there, too? Alternatively can
you also try to set the LIBRARY_PATH and LD_LIBRARY_PATH and LD_RUN_PATH variables.
However, because libturing isn't officially supported by the FFmpeg project
since it's a fork by the BBC Turing project will you have to ask them how their
code works. You may even ask them to send in patches to the FFmpeg project to
make it official, but until then is it not supported.
Cheers
Best regards,
Matteo
--
Matteo Naccari, Ph.D., Senior Research Engineer
BBC R&D, Centre House, London, 56 Wood lane, W12 7SB
Phone: +44 (0)303 0409640 Skype: matteo_naccari
Alternative emails: [email protected], [email protected]
Webpage: http://sites.google.com/site/matteonaccari
________________________________________
From: ffmpeg-user [[email protected]] on behalf of Sven C. Dack
[[email protected]]
Sent: 03 November 2016 20:57
To: FFmpeg user questions
Subject: Re: [FFmpeg-user] Specifying lib path when building ffmpeg
On 03/11/16 18:34, Matteo Naccari wrote:
Dear FFmpeg users,
I'm trying to build a fork of ffmpeg under Linux (Ubuntu 14.04, gcc 4.82) which
then integrates the codec I'm working on (https://github.com/bbc/turingcodec).
This codec uses some boost libraries which ship with the source code. However,
when I build ffmpeg enabling the Turing codec (--enable-libturing) I can see
that the executable of ffmpeg links the system's boost libraries. Is there a
way to link to the libraries associated with the Turing codec? I've tried the
--extra-ldflags option but no joy. The way I configure the build is the
following:
PATH="/path/to/source/code/bin:$PATH" PKG_CONFIG_PATH="$HOME/ffmpeg_build/lib/pkgconfig" ./configure
--prefix="$HOME/ffmpeg_build" --pkg-config-flags="--static" --extra-cflags="-I$HOME/ffmpeg_build/include"
--extra-ldflags="-L$HOME/ffmpeg_build/lib-L/path/to/turing/source/code/build/release/boost" --bindir="$HOME/bin" --enable-gpl
--enable-nonfree --enable-libturing
Many thanks for your help!
Best regards,
Matteo
The line with:
--extra-ldflags="-L$HOME/ffmpeg_build/lib-L/path/to/turing/source/code/build/release/boost"
should say:
--extra-ldflags="-L$HOME/ffmpeg_build/lib
-L/path/to/turing/source/code/build/release/boost"
It's missing a blank between the two -L<path> arguments.
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