To Stackposts can working Stable you need follow by this steps to installing FFMPEG
1. wget https://www.ffmpeg.org/releases/ffmpeg-3.3.4.tar.bz2
2. tar xjf ffmpeg-3.3.4.tar.bz2
3. cd ffmpeg-3.3.4
4. Open file: libavformat/rtmpproto.c
nano libavformat/rtmpproto.
And follow by this steps:
1. Click: Ctrl + W
2. Search: ret = ffurl_read(rt->stream, &c, 1);
3. Replace to: ret = AVERROR(EAGAIN);
5. Run command line
export TMPDIR=$HOME/tmp
6. Install libraries needed
1. sudo apt-get install libfontconfig1-dev
2. sudo apt-get install libmp3lame-dev
3. sudo apt-get install speex-dev
4. sudo apt-get install libtheora-dev
5. sudo apt-get install libvorbis-dev
6. sudo apt-get install libssl-dev
7. sudo apt-get install libx264-dev
8. sudo apt-get install libx265-dev
7. Run command line:
./configure --prefix=/usr --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/local/lib --incdir=/usr/include/lib --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-libfontconfig --enable-libfreetype --enable-libmp3lame --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libx265 --enable-libx264 --enable-openssl --enable-nonfree --disable-yasm
8. Run command line:
make && sudo make install
9. Open fine: /etc/ld.so.conf
Add this line and save
/usr/local/lib
10. Run: ldconfig