参考：

    https://github.com/ossrs/srs/wiki/v2_CN_SampleFFMPEG

git clone https://github.com/ossrs/srs

cd srs/trunk

./configure

make

make install

./objs/srs -c conf/myconf.conf

其中： ./configure --with-ffmpeg && make

如果编译失败就去掉--with-ffmpeg，自己安装ffmpeg

本地推流: ffmpeg -re -i /root/Videos/aaa.mp4 -c copy -f flv rtmp://192.168.2.125:1935/live/aaa

# the config for srs use ffmpeg to transcode

# @see https://github.com/ossrs/srs/wiki/v1_CN_SampleFFMPEG

# @see full.conf for detail config.

listen              1935;

max_connections     1000;

daemon              off;

srs_log_tank        console;

vhost __defaultVhost__ {

    transcode {

        enabled     on;

        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;

        engine ff {

            enabled         on;

            vfilter {

            }

            vcodec          libx264;

            vthreads        4;

            vprofile        main;

            vpreset         medium;

            vparams {

            }

            acodec          libfdk_aac;

            aparams {

            }

            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];

        }

    }

#保存直播为flv

dvr {

        # https://github.com/ossrs/srs/wiki/v2_CN_DVR

        enabled         on;

        dvr_path        ./objs/nginx/html/[app]/[stream].[timestamp].flv;

        dvr_plan        session;

        dvr_duration    30;

        dvr_wait_keyframe       on;

        time_jitter             full;

   }

}

listen              1935;

max_connections     1000;

daemon              off;

srs_log_tank        console;

vhost __defaultVhost__ {

    ingest livestream {

        enabled      on;

        input {

            type    file;

            url     /root/Videos/zzzz.mp4;

        }

        ffmpeg      /usr/local/bin/ffmpeg;

        engine {

            enabled         off;

            output          rtmp://127.0.0.1:1935/live/livestream;

            #rtmp://127.0.0.1:[port]/live?vhost=[vhost]/livestream;

        }

    }

}