Preface

• centos 7
• Source code compilation and installation ffmpeg

error

compile FFMPEG when , There was a mistake nasm/yasm not found or too old. Use --disable-x86asm for a crippled build..

reason

This is because FFMPEG To improve compilation speed , Assembly instructions are used , Such as MMX and SSE etc. . If there is no yasm If you order , This error will occur .

terms of settlement

install yasm.

install yasm

Windows System installation yasm

If it is Windows System , Download one from the Internet yasm.exe And installed in mingw/bin below , recompile , The error will not occur .

Linux System installation yasm

If it is Linux System , It's simpler , Input directly at the terminal yum install yasm , After installed , Recompile it OK 了 .

Besides using yum install yasm, You can also compile and install , as follows ：
stay http://www.tortall.net/projects/yasm/releases Here's what's right for your platform yasm edition . Then install . Examples are as follows ：

1） download ：wget http://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz

2） decompression ：tar zxvf yasm-1.3.0.tar.gz

3） Switching path ： cd yasm-1.3.0

4） Perform configuration ： ./configure

5） compile ：make

6） install ：make install

Reference resources

https://blog.csdn.net/yzhang6_10/article/details/75635734
https://blog.csdn.net/ranxiedao/article/details/16359183