FFmpeg push Stream, error may occur: Unknown encoder ' libx264 '

When you use the following command to push a stream:

Ffmpeg-re-i a.mp4-vcodec libx264-acodec aac-f flv rtmp://172.31.102.165:1935/myapp

The following error may occur:

Unknown encoder ' libx264 '

That is, the library needs to be installed if the libx264 library is missing:

1. Git clone git://git.videolan.org/x264.git

2. CD x264

3../configure--enable-static--enable-share

4. Make

5. Sudo make install

Need to recompile installation FFmpeg

1. When configuring FFmpeg, add x264, such as:

./configure--ENABLE-GPL--enable-libx264

2. Make clean

3. Make

4. Make install

At this point, an error may occur when you enter FFmpeg:

Ffmpeg:error while loading shared libraries:libavdevice.so.57:cannot open Shared object file:no such file or directory

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Modify the Ld.so.conf file

1. $ sudo vi/etc/ld.so.conf

2. Modify the following

Include ld.so.conf.d/*.conf
/usr/local/ffmpeg/lib///usr/local/ffmpeg Directory is my ffmpeg installation directory, change it according to your installation directory

3. Making it effective

$ sudo ldconfig

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Adding environment variables for Ffmpeg
Vi/etc/profile
Add the following content:
Export path= "/usr/local/ffmpeg/bin: $PATH"

Then save and run Source/etc/profile

FFmpeg push Stream, error may occur: Unknown encoder ' libx264 '