[FFmpeg-user] "ERROR: libx264 not found" Ubuntu 11.10

medi mtirgar+exotic at gmail.com
Mon Feb 20 01:11:15 CET 2012


It seems ffmpeg cannot find libx264, one way to get sure that libx264
is installed is to use the following command :
"whereis libx264.so"
the result should be something like:
libx264: /usr/lib/libx264.so

To install x264, you can do it like this:
sudo apt-get install x264 libx264-dev

you can also build libx264 from source, then it may install library
files in '/usr/local/lib' instead, you should check /etc/ld.so.conf
and add '/usr/local/lib
' if it is not already there, then you should run 'sudo ldconfig' to
refresh library paths.

I'm using a different Linux distribution, but I guess the above
procedure should work on Ubuntu. I hope it goes well. I'm eager to
know the result.

On Sun, Feb 19, 2012 at 10:37 PM, Andreas Grehn <andreas.grehn at gmail.com> wrote:
> I've followed the guide for installing ffmpeg on Ubuntu 11.10 located here:
> http://ubuntuforums.org/showthread.php?t=786095
> When I get to this part all hell breaks loose.
> -----------------------
> root at kameraserver:~/ffmpeg# ./configure --enable-gpl --enable-libfaac
> --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb
> --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree
> --enable-postproc --enable-version3 --enable-x11grab
> ERROR: libx264 not found
> If you think configure made a mistake, make sure you are using the latest
> version from Git.  If the latest version fails, report the problem to the
> ffmpeg-user at ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
> Include the log file "config.log" produced by configure as this will help
> solving the problem.
> -----------------------
> As instructed the complete config.log is available here
> http://pastebin.com/L3jEM3wZ.
> x264 seems to be installed, I guess, I have no experience of checkinstall
> but I can't see any errors.
> The result of checkinstall is at this location http://pastebin.com/mCiZHQ8f.
> With some reading of the configure.log for ffmpeg I tried to put x264.h in
> /usr/include. That resulted in config.log ending with a request to find
> x264_config.h, I promptly copied that aswell and now it ends with the
> following error.
> -----------------------
> check_lib x264.h x264_encoder_encode -lx264
> check_header x264.h
> check_cpp
> BEGIN /tmp/ffconf.4KTJhgCU.c
>    1 #include <x264.h>
>    2 int x;
> END /tmp/ffconf.4KTJhgCU.c
> -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -std=c99 -fomit-frame-pointer
> -pthread -E -o /tmp/ffconf.l7QVcEji.o /tmp/ffconf.4KTJhgCU.c
> In file included from /tmp/ffconf.4KTJhgCU.c:1:0:
> /usr/include/x264.h:36:4: warning: #warning You must include stdint.h or
> inttypes.h before x264.h [-Wcpp]
> check_func x264_encoder_encode -lx264
> check_ld cc -lx264
> check_cc
> BEGIN /tmp/ffconf.4KTJhgCU.c
>    1 extern int x264_encoder_encode();
>    2 int main(void){ x264_encoder_encode(); }
> END /tmp/ffconf.4KTJhgCU.c
> -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -std=c99 -fomit-frame-pointer
> -pthread -c -o /tmp/ffconf.l7QVcEji.o /tmp/ffconf.4KTJhgCU.c
> gcc -Wl,--as-needed -o /tmp/ffconf.QuRwmCOy /tmp/ffconf.l7QVcEji.o -lx264
> -lvorbisenc -lvorbis -logg -ltheoraenc -ltheoradec -logg -lopencore-amrwb
> -lopencore-amrnb -lmp3lame -lfaac -lm -pthread -lz
> /usr/bin/ld: cannot find -lx264
> collect2: ld returned 1 exit status
> ERROR: libx264 not found
> -----------------------
> The warning about stdint.h I have absolutely no clue as to how to solve,
> hence this message.
> I have some Linux knowledge and I have some c/c++ experience but this is
> way out of my comfort zone.
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