[FFmpeg-user] Unable to compile with libx264

Chao-Chin Yang ccyang at unlv.edu
Thu Jan 4 04:41:08 EET 2018


Hi,

I am trying to compile ffmpeg from source with libx264.  Because I don’t have any super-user privileges, I am building it under my home.

I first installed the latest stable release of x264 from VideoLAN.  Then under the ffmpeg source, I do

./configure --prefix=$HOME --extra-cflags=-I$HOME/include --extra-cxxflags=-I$HOME/include --extra-objcflags=-I$HOME/include --extra-ldflags=-L$HOME/lib --enable-libx264 --enable-gpl

From the output, I do see libx264 showing up in the section of External libraries, and I see h264 and h264_cuvid showing up in Enabled decoders.  However, when I

make

something wrong with the code libavcodec/libx264.c:

CC	libavcodec/libx264.o
libavcodec/libx264.c: In function ‘X264_frame’:
libavcodec/libx264.c:282:9: error: ‘x264_bit_depth’ undeclared (first use in this function); did you mean ‘x264_picture_t’?
     if (x264_bit_depth > 8)
         ^~~~~~~~~~~~~~
         x264_picture_t
libavcodec/libx264.c:282:9: note: each undeclared identifier is reported only once for each function it appears in
libavcodec/libx264.c: In function ‘X264_init_static’:
libavcodec/libx264.c:892:9: error: ‘x264_bit_depth’ undeclared (first use in this function); did you mean ‘x264_picture_t’?
     if (x264_bit_depth == 8)
         ^~~~~~~~~~~~~~
         x264_picture_t
make: *** [libavcodec/libx264.o] Error 1

The problem was that the variable x264_bit_depth is undefined.  I tried to look for this variable in any possible headers, especially x264_config.h and x264.h generated by the x264 installation, but nothing exists.

Am I missing something in all this process?

Sincerely,
C.-C.



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