linux如何编译ffmpeg,Linux编译ffmpeg

编译:(更多参数见./configure --help)：最终编译完成后位于/usr/local/ffmpeg下

cd ffmpeg

#可选参数 --disable-static --enable-shared :默认配置是生成静态链接库so,添加此配置即生成动态库

./configure --prefix=/usr/local/ffmpeg --enable-debug=3

make -j 4

make install

编译出现的错误:

gcc is unable to create an executable file.

If gcc is a cross-compiler, use the --enable-cross-compile option.

Only do this if you know what cross compiling means.

C compiler test failed.

//未安装gcc：

sudo apt-get install gcc

nasm/yasm not found or too old. Use --disable-x86asm for a crippled build.

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

[email protected] mailing list or IRC #ffmpeg on irc.freenode.net.

Include the log file "ffbuild/config.log" produced by configure as this will help

solve the problem.

//yasm是汇编编译器，ffmpeg为了提高效率使用了汇编指令，如MMX和SSE等。所以系统中未安装yasm

sudo apt install yasm

缺少make:

sudo apt install make

在home或者etc目录下的.profile文件中进行环境配置:

配置path:

export PATH=$PATH:/usr/local/ffmpeg/bin

配置pkg_config_path：

export PKG_CONFIG_PATH=/usr/local/ffmpeg/lib/pkgconfig

配置完成后要source .profile生效配置：具体可以通过echo $PATH查看是否生效，pkg同理。

make install完成后就会在指定目录生成编译后资源(/usr/local/ffmpeg)

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