Install FFMpeg with conda

    echo -e "[+] setup proxy"
    export http_proxy=***
    export https_proxy=***
    echo -e "[+] check proxy"
    env | grep proxy
    wget www.baidu.com
    rm -fr index.html

    # anaconda
    echo -e "[+] init anaconda"
    export PATH="/home/xy3/anaconda2/bin:$PATH"

    echo -e "[+] set mirror: tsinghua"
    conda config --add channels conda-forge
    #conda config --add channels https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
    conda config --remove channels 'https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/'
    #conda config --add channels https://pypi.python.org/pypi
    conda config --remove channels https://pypi.python.org/pypi
    conda config --set show_channel_urls yes
    echo -e "[+] conda config --show channels"
    conda config --show channels

Convert MP4 to H264

$ source anaconda.env-20190430
$ ffmpeg -i ~/yuan/scp/demo1-720p.mp4 -an -vcodec libx264 -crf 23 rfcn.h264