编译FFmpeg：找不到libx264 [英] Compiling FFmpeg : libx264 not found
问题描述
这是我的build_android.sh文件：
＃！/ bin / bash
NDK = / home / rango / Desktop / android-ndk-r10e
SYSROOT = $ NDK / platforms / android-19 / arch-arm /
TOOLCHAIN = $ NDK / toolchains / arm-linux-androideabi-4.8 / prebuilt / linux-x86
#ADDI_LDFLAGS = - L / usr / local / lib
#ADDI_CFLAGS = - I / usr / include
函数build_one
{
./configure \
--prefix = $ PREFIX \
--enable-shared \
--enable-static \
--disable-doc \
--disable-ffmpeg \
--disable-ffplay \
- 禁用-ffpr obe \
--disable-ffserver \
--disable-doc \
--disable-symver \
--enable-protocol = concat \
--enable-protocol = file \
--enable-muxer = mp4 \
--enable-demuxer = mpegts \
--enable-memalign-hack \\ \\
--enable-gpl \
--enable-libx264 \
--cross-prefix = $ TOOLCHAIN / bin / arm-linux-androideabi- \
--target-os = linux \
--arch = arm \
--enable-cross-compile \
--sysroot = $ SYSROOT \
- -extra-cflags = - Os -fpic -marm $ ADDI_CFLAGS\
--extra-ldflags =$ ADDI_LDFLAGS\
make clean
make -j4
make install
}
CPU = arm
PREFIX = $（pwd）/ android / $ CPU
build_one
当我执行buid_android.sh脚本没有--enable-libx264 \一切都进展顺利，我可以得到。一个文件在android / arm /文件夹。但是使用此行会失败，并在控制台中显示以下错误：
错误：未找到libx264
如果您认为配置有误，请确保您使用Git的
最新版本。如果最新版本失败，请将
问题报告给ffmpeg-user@ffmpeg.org邮件列表或
irc.freenode.net上的IRC #ffmpeg。包括由
configure生成的日志文件config.log，因为这将有助于
它似乎不能找到库的位置，因为我在config.log文件中收到以下错误：
LIBNAME.h：否这样的文件或目录
newlib.h：没有这样的文件或
目录mingw.h：没有这样的文件或目录
x264.h：没有这样的文件或
目录
这是config.log文件的尾部：
check_mathfunc truncf 1
check_ld cc
check_cc
BEGIN /tmp/ffconf.zGKqGin6.c
1 #include< math.h>
2 float foo（float f，float g）{return truncf（f）; }
3 int main（void）{return（int）foo; }
END /tmp/ffconf.zGKqGin6.c
/home/rango/Desktop/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm -linux-androideabi-gcc --sysroot = / home / rango / Desktop / android-ndk-r10e / platforms / android-19 / arch-arm / -isysroot / home / rango / Desktop / android-ndk-r10e / android-19 / arch-arm / -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS = 64 -D_LARGEFILE_SOURCE -Dstrtod = avpriv_strtod -DPIC -Os -fpic -marm -march = armv5te -std = c99 -fomit-frame-pointer -fPIC -marm -pthread -c -o /tmp/ffconf.8Q9ke3aO.o /tmp/ffconf.zGKqGin6.c
/home/rango/Desktop/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86 / bin / arm-linux-androideabi-gcc --sysroot = / home / rango / Desktop / android-ndk-r10e / platforms / android-19 / arch-arm / -isysroot / home / rango / Desktop / android-ndk- r10e / platforms / android-19 / arch-arm / -Wl， - 需要-o /tmp/ffconf.3sjTkc5z /tmp/ffconf.8Q9ke3aO.o -lm -lz -pthread
check_lib x264.h x264_encoder_encode -lx264
check_header x264.h
check_cpp
B EGIN /tmp/ffconf.zGKqGin6.c
1 #include< x264.h>
2 int x;
END /tmp/ffconf.zGKqGin6.c
/home/rango/Desktop/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm- linux-androideabi-gcc --sysroot = / home / rango / Desktop / android-ndk-r10e / platforms / android-19 / arch-arm / -isysroot / home / rango / Desktop / android-ndk-r10e / platforms / android -19 / arch-arm / -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS = 64 -D_LARGEFILE_SOURCE -Dstrtod = avpriv_strtod -DPIC -Os -fpic -marm -march = armv5te -std = c99 -fomit-frame-pointer -fPIC -marm -pthread -E - o /tmp/ffconf.8Q9ke3aO.o /tmp/ffconf.zGKqGin6.c
/tmp/ffconf.zGKqGin6.c:1:18：致命错误：x264.h：没有这样的文件或目录
#include< x264.h>
^
编译终止。
错误：libx264未找到
理论上使用 libx264 支持 Android 构建 FFmpeg 支持您需要执行以下步骤：
1）为Android 构建 libx264 。现在你没有任何建立的libx264 ，这就是为什么你得到上面的错误。
2）更改你的 buid_android.sh 并添加其他选项到配置（ - extra-cflags 和 - extra-ldflags ）指定路径包含和 lib 目录 libx264 在步骤1。
3）运行修改的 build_android.sh 。
不幸的是，我没有为 Android 构建 libx264 。但我认为有办法做到这一点...
I hope some one helps me the solve this problems. I was trying to compile FFmpeg 2.2.3 library under ubuntu 12.04LTS for android using android ndk r10e by following this tutorials:
here is my build_android.sh file:
#!/bin/bash
NDK=/home/rango/Desktop/android-ndk-r10e
SYSROOT=$NDK/platforms/android-19/arch-arm/
TOOLCHAIN=$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86
#ADDI_LDFLAGS="-L /usr/local/lib"
#ADDI_CFLAGS="-I /usr/include"
function build_one
{
./configure \
--prefix=$PREFIX \
--enable-shared \
--enable-static \
--disable-doc \
--disable-ffmpeg \
--disable-ffplay \
--disable-ffprobe \
--disable-ffserver \
--disable-doc \
--disable-symver \
--enable-protocol=concat \
--enable-protocol=file \
--enable-muxer=mp4 \
--enable-demuxer=mpegts \
--enable-memalign-hack \
--enable-gpl \
--enable-libx264 \
--cross-prefix=$TOOLCHAIN/bin/arm-linux-androideabi- \
--target-os=linux \
--arch=arm \
--enable-cross-compile \
--sysroot=$SYSROOT \
--extra-cflags="-Os -fpic -marm $ADDI_CFLAGS" \
--extra-ldflags="$ADDI_LDFLAGS" \
make clean
make -j4
make install
}
CPU=arm
PREFIX=$(pwd)/android/$CPU
build_one
when i execute buid_android.sh script without --enable-libx264 \ line everything is going well and i can get .a files on android/arm/ folder. but with this line it fails and show the following error in the console:
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@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net. Include the log file "config.log" produced by configure as this will help
it seems like it can't find where the libraries are, as i get a lot of the following errors in config.log file:
"LIBNAME".h: No such file or directory newlib.h: No such file or directory mingw.h: No such file or directory x264.h: No such file or directory
Here is the tail of config.log file:
check_mathfunc truncf 1
check_ld cc
check_cc
BEGIN /tmp/ffconf.zGKqGin6.c
1 #include <math.h>
2 float foo(float f, float g) { return truncf(f); }
3 int main(void){ return (int) foo; }
END /tmp/ffconf.zGKqGin6.c
/home/rango/Desktop/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --sysroot=/home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -isysroot /home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dstrtod=avpriv_strtod -DPIC -Os -fpic -marm -march=armv5te -std=c99 -fomit-frame-pointer -fPIC -marm -pthread -c -o /tmp/ffconf.8Q9ke3aO.o /tmp/ffconf.zGKqGin6.c
/home/rango/Desktop/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --sysroot=/home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -isysroot /home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -Wl,--as-needed -o /tmp/ffconf.3sjTkc5z /tmp/ffconf.8Q9ke3aO.o -lm -lz -pthread
check_lib x264.h x264_encoder_encode -lx264
check_header x264.h
check_cpp
BEGIN /tmp/ffconf.zGKqGin6.c
1 #include <x264.h>
2 int x;
END /tmp/ffconf.zGKqGin6.c
/home/rango/Desktop/android-ndk-r10e/toolchains/arm-linux-androideabi-4.8/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --sysroot=/home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -isysroot /home/rango/Desktop/android-ndk-r10e/platforms/android-19/arch-arm/ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -Dstrtod=avpriv_strtod -DPIC -Os -fpic -marm -march=armv5te -std=c99 -fomit-frame-pointer -fPIC -marm -pthread -E -o /tmp/ffconf.8Q9ke3aO.o /tmp/ffconf.zGKqGin6.c
/tmp/ffconf.zGKqGin6.c:1:18: fatal error: x264.h: No such file or directory
#include <x264.h>
^
compilation terminated.
ERROR: libx264 not found
Theoretically to build FFmpeg for Android with libx264 support you need to go through these steps:
1) Build libx264 for Android. Now you haven't any built libx264, that's why you get above error.
2) Change your buid_android.sh and add additional options to configure (--extra-cflags and --extra-ldflags) to specify paths to include and lib directories of libx264 which was built on step 1.
3) Run modified build_android.sh.
Unfortunately, I haven't built libx264 for Android. But I assume that there're ways to do it...
这篇关于编译FFmpeg：找不到libx264的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
