集成ffmpeg/x264:ERROR: libx264 not found的问题

集成ffmpeg/x264碰到如下问题：

    ERROR: libx264 not found

察看config.log,详细信息如下：

      check_lib x264.h x264_encoder_encode -lx264

       check_header x264.h

       check_cpp

       BEGIN/tmp/ffconf.isuazGlg.c

          1   #include

          2   int x;

       END/tmp/ffconf.isuazGlg.c

       gcc -D_ISOC99_SOURCE-D_POSIX_C_SOURCE=200112 -D_FILE_OFFSET_BITS=64 -D_LARGEFIL

       E_SOURCE -U__STRICT_ANSI__-I/d/MinGW/msys/1.0/include -std=c99 -fno-common -fom

       it-frame-pointer -E -o/tmp/ffconf.ClhyDYvC.o /tmp/ffconf.isuazGlg.c

      C:/DOCUME~1/ibm/LOCALS~1/Temp/ffconf.isuazGlg.c:1:18:fatal error: x264.h: No su

       ch file or directory^M

       compilationterminated.^M

       ERROR: libx264 notfound:

所以实际原因是x264 make install 的东西ffmpegconfigure没有找到x264.h这个文件。查看我的x264

make install的结果，有：

      install -d /usr/local/bin

      install -d /usr/local/include

      install -d /usr/local/lib

      install -d /usr/local/lib/pkgconfig

      install -m 644 x264.h /usr/local/include

      install -m 644 x264_config.h/usr/local/include

      install -m 644 libx264.a /usr/local/lib

      install -m 644 x264.pc/usr/local/lib/pkgconfig

      install x264.exe /usr/local/bin

      ranlib /usr/local/lib/libx264.a

      install -m 755 libx264-115.dll/usr/local/bin

      install -m 644 libx264.dll.a/usr/local/lib

因此，只要在配制configure时，添加额外的include/link路径应该能够解决问题，即增加开关：

      --extra-cflags=-I/usr/local/include--extra-ldflags=-L/usr/local/lib

这个需要根据你x264编译、安装的实际配制修改。Finally, theconfigure command for ffmpeg is

changed to :

$./configure --enable-memalign-hack --enable-ffserver--enable-network --enable-protocols --enable-muxers --disable-yasm--enable-shared--enable-w32threads --enable-libx264 --enable-gpl--extra-cflags=-I/usr/local/include--extra-ldflags=-L/usr/local/lib

    

 运行，一切无误！