srs/trunk/conf/full.conf

# all config for srs

#############################################################################################
# RTMP sections
#############################################################################################
# the rtmp listen ports, split by space.
listen              1935;
# the pid file
# to ensure only one process can use a pid file
# and provides the current running process id, for script, 
# for example, init.d script to manage the server.
# default: ./objs/srs.pid
pid                 ./objs/srs.pid;
# the default chunk size is 128, max is 65536,
# some client does not support chunk size change,
# however, most clients supports it and it can improve 
# performance about 10%.
# default: 60000
chunk_size          60000;
# the logs dir.
# if enabled ffmpeg, each stracoding stream will create a log file.
# default: ./objs/logs
ff_log_dir          ./objs/logs;
# the log tank, console or file.
# if console, print log to console.
# if file, write log to file. requires srs_log_file if log to file.
# default: file.
srs_log_tank        file;
# the log level, for all log tanks.
# can be: verbose, info, trace, warn, error
# defualt: trace
srs_log_level       trace;
# when srs_log_tank is file, specifies the log file.
# default: ./objs/srs.log
srs_log_file        ./objs/srs.log;
# the max connections.
# if exceed the max connections, server will drop the new connection.
# default: 2000
max_connections     1000;
# whether start as deamon
# default: on
daemon              on;

#############################################################################################
# HTTP sections
#############################################################################################
# api of srs.
# the http api config, export for external program to manage srs.
# user can access http api of srs in browser directly, for instance, to access by:
#       curl http://192.168.1.170:1985/api/v1/reload
# which will reload srs, like cmd killall -1 srs, but the js can also invoke the http api,
# where the cli can only be used in shell/terminate.
http_api {
    # whether http api is enabled.
    # default: off
    enabled         on;
    # the http api port
    # default: 1985
    listen          1985;
}
# embeded http server in srs.
# the http streaming config, for HLS/HDS/DASH/HTTPProgressive
# global config for http streaming, user must config the http section for each vhost.
# the embed http server used to substitute nginx in ./objs/nginx,
# for example, srs runing in arm, can provides RTMP and HTTP service, only with srs installed.
# user can access the http server pages, generally:
#       curl http://192.168.1.170:80/srs.html
# which will show srs version and welcome to srs.
# @remeark, the http embeded stream need to config the vhost, for instance, the __defaultVhost__
# need to open the feature http of vhost.
http_stream {
    # whether http streaming service is enabled.
    # default: off
    enabled         on;
    # the http streaming port
    # @remark, if use lower port, for instance 80, user must start srs by root.
    # default: 8080
    listen          8080;
    # the default dir for http root.
    # default: ./objs/nginx/html
    dir             ./objs/nginx/html;
}

#############################################################################################
# RTMP/HTTP VHOST sections
#############################################################################################
# vhost list, the __defaultVhost__ is the default vhost
# for example, user use ip to access the stream: rtmp://192.168.1.2/live/livestream.
# for which cannot identify the required vhost.
vhost __defaultVhost__ {
}

# vhost for http
vhost http.srs.com {
    # http vhost specified config
    http {
        # whether enable the http streaming service for vhost.
        # default: off
        enabled     on;
        # the virtual directory root for this vhost to mount at
        # for example, if mount to /hls, user access by http://server/hls
        # default: /
        mount       /hls;
        # main dir of vhost,
        # to delivery HTTP stream of this vhost.
        # default: ./objs/nginx/html
        dir         ./objs/nginx/html/hls;
    }
}

# vhost for atc.
vhost atc.srs.com {
    # vhost for atc for hls/hds/rtmp backup.
    # generally, atc default to off, server delivery rtmp stream to client(flash) timestamp from 0.
    # when atc is on, server delivery rtmp stream by absolute time.
    # atc is used, for instance, encoder will copy stream to master and slave server,
    # server use atc to delivery stream to edge/client, where stream time from master/slave server
    # is always the same, client/tools can slice RTMP stream to HLS according to the same time,
    # if the time not the same, the HLS stream cannot slice to support system backup.
    # 
    # @see http://www.adobe.com/cn/devnet/adobe-media-server/articles/varnish-sample-for-failover.html
    # @see http://www.baidu.com/#wd=hds%20hls%20atc
    #
    # default: off
    atc             on;
}

# vhost for bandwidth check
# generally, the bandcheck vhost must be: bandcheck.srs.com,
# or need to modify the vhost of client.
vhost bandcheck.srs.com {
    enabled         on;
    chunk_size      65000;
    # bandwidth check config.
    bandcheck {
        # whether support bandwidth check,
        # default: off.
        enabled         on;
        # the key for server to valid,
        # if invalid key, server disconnect and abort the bandwidth check.
        key             "35c9b402c12a7246868752e2878f7e0e";
        # the interval in seconds for bandwidth check,
        # server donot allow new test request.
        # default: 30
        interval        30;
        # the max available check bandwidth in kbps.
        # to avoid attack of bandwidth check.
        # default: 1000
        limit_kbps      4000;
    }
}

# set the chunk size of vhost.
vhost chunksize.vhost.com {
    # the default chunk size is 128, max is 65536,
    # some client does not support chunk size change,
    # vhost chunk size will override the global value.
    # default: global chunk size.
    chunk_size      128;
}

# the http hook callback vhost, srs will invoke the hooks for specified events.
vhost hooks.callback.vhost.com {
    http_hooks {
        # whether the http hooks enalbe.
        # default off.
        enabled         on;
        # when client connect to vhost/app, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_connect",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "pageUrl": "http://www.test.com/live.html"
        #       }
        # if valid, the hook must return HTTP code 200(Stauts OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_connect http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_connect      http://127.0.0.1:8085/api/v1/clients http://localhost:8085/api/v1/clients;
        # when client close/disconnect to vhost/app/stream, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_close",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live"
        #       }
        # if valid, the hook must return HTTP code 200(Stauts OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_close http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_close        http://127.0.0.1:8085/api/v1/clients http://localhost:8085/api/v1/clients;
        # when client(encoder) publish to vhost/app/stream, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_publish",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "stream": "livestream"
        #       }
        # if valid, the hook must return HTTP code 200(Stauts OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_publish http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_publish      http://127.0.0.1:8085/api/v1/streams http://localhost:8085/api/v1/streams;
        # when client(encoder) stop publish to vhost/app/stream, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_unpublish",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "stream": "livestream"
        #       }
        # if valid, the hook must return HTTP code 200(Stauts OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_unpublish http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_unpublish    http://127.0.0.1:8085/api/v1/streams http://localhost:8085/api/v1/streams;
        # when client start to play vhost/app/stream, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_play",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "stream": "livestream"
        #       }
        # if valid, the hook must return HTTP code 200(Stauts OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_play http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_play         http://127.0.0.1:8085/api/v1/sessions http://localhost:8085/api/v1/sessions;
        # when client stop to play vhost/app/stream, call the hook,
        # the request in the POST data string is a object encode by json:
        #       {
        #           "action": "on_stop",
        #           "client_id": 1985,
        #           "ip": "192.168.1.10", "vhost": "video.test.com", "app": "live",
        #           "stream": "livestream"
        #       }
        # if valid, the hook must return HTTP code 200(Stauts OK) and response
        # an int value specifies the error code(0 corresponding to success):
        #       0
        # support multiple api hooks, format:
        #       on_stop http://xxx/api0 http://xxx/api1 http://xxx/apiN
        on_stop         http://127.0.0.1:8085/api/v1/sessions http://localhost:8085/api/v1/sessions;
    }
}

# the mirror filter of ffmpeg, @see: http://ffmpeg.org/ffmpeg-filters.html#Filtering-Introduction
vhost mirror.transcode.vhost.com {
    transcode {
        enabled     on;
        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
        engine mirror {
            enabled         on;
            vfilter {
                vf                  'split [main][tmp]; [tmp] crop=iw:ih/2:0:0, vflip [flip]; [main][flip] overlay=0:H/2';
            }
            vcodec          libx264;
            vbitrate        300;
            vfps            20;
            vwidth          768;
            vheight         320;
            vthreads        2;
            vprofile        baseline;
            vpreset         superfast;
            vparams {
            }
            acodec          libaacplus;
            abitrate        45;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
    }
}
# the drawtext filter of ffmpeg, @see: http://ffmpeg.org/ffmpeg-filters.html#drawtext-1
vhost drawtext.transcode.vhost.com {
    transcode {
        enabled     on;
        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
        engine drawtext {
            enabled         on;
            vfilter {
                vf                  'drawtext=text=SimpleRtmpServer(SRS):x=10:y=10:fontcolor=#cccccc:fontfile=./doc/FreeSerifBold.ttf';
            }
            vcodec          libx264;
            vbitrate        300;
            vfps            20;
            vwidth          768;
            vheight         320;
            vthreads        2;
            vprofile        baseline;
            vpreset         superfast;
            vparams {
            }
            acodec          libaacplus;
            abitrate        45;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
    }
}
# the crop filter of ffmpeg, @see: http://ffmpeg.org/ffmpeg-filters.html#crop
vhost crop.transcode.vhost.com {
    transcode {
        enabled     on;
        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
        engine crop {
            enabled         on;
            vfilter {
                vf                  'crop=in_w-20:in_h-160:10:80';
            }
            vcodec          libx264;
            vbitrate        300;
            vfps            20;
            vwidth          768;
            vheight         320;
            vthreads        2;
            vprofile        baseline;
            vpreset         superfast;
            vparams {
            }
            acodec          libaacplus;
            abitrate        45;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
    }
}
# the logo filter of ffmpeg, @see: http://ffmpeg.org/ffmpeg-filters.html#overlay
vhost logo.transcode.vhost.com {
    transcode {
        enabled     on;
        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
        engine logo {
            enabled         on;
            vfilter {
                i               ./doc/ffmpeg-logo.png;
                filter_complex      'overlay=10:10';
            }
            vcodec          libx264;
            vbitrate        300;
            vfps            20;
            vwidth          768;
            vheight         320;
            vthreads        2;
            vprofile        baseline;
            vpreset         superfast;
            vparams {
            }
            acodec          libaacplus;
            abitrate        45;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
    }
}
# audio transcode only.
# for example, FMLE publish audio codec in mp3, and donot support HLS output,
# we can transcode the audio to aac and copy video to the new stream with HLS.
vhost audio.transcode.vhost.com {
    transcode {
        enabled     on;
        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
        engine acodec {
            enabled         on;
            vcodec          copy;
            acodec          libaacplus;
            abitrate        45;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
    }
}
# disable video, transcode/copy audio.
# for example, publish pure audio stream.
vhost vn.transcode.vhost.com {
    transcode {
        enabled     on;
        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
        engine vn {
            enabled         on;
            vcodec          vn;
            acodec          libaacplus;
            abitrate        45;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
    }
}
# ffmpeg-copy(forward implements by ffmpeg).
# copy the video and audio to a new stream.
vhost copy.transcode.vhost.com {
    transcode {
        enabled     on;
        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
        engine copy {
            enabled         on;
            vcodec          copy;
            acodec          copy;
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
    }
}
# transcode all app and stream of vhost
vhost all.transcode.vhost.com {
    # the streaming transcode configs.
    transcode {
        # whether the transcode enabled.
        # if off, donot transcode.
        # default: off.
        enabled     on;
        # the ffmpeg 
        ffmpeg ./objs/ffmpeg/bin/ffmpeg;
        # the transcode engine for matched stream.
        # all matched stream will transcoded to the following stream.
        # the transcode set name(ie. hd) is optional and not used.
        engine ffsuper {
            # whether the engine is enabled
            # default: off.
            enabled         on;
            # ffmpeg filters, follows the main input.
            vfilter {
                # the logo input file.
                i               ./doc/ffmpeg-logo.png;
                # the ffmpeg complex filter.
                # for filters, @see: http://ffmpeg.org/ffmpeg-filters.html
                filter_complex      'overlay=10:10';
            }
            # video encoder name. can be:
            # libx264: use h.264(libx264) video encoder.
            # copy: donot encoder the video stream, copy it.
            # vn: disable video output.
            vcodec          libx264;
            # video bitrate, in kbps
            vbitrate        1500;
            # video framerate.
            vfps            25;
            # video width, must be even numbers.
            vwidth          768;
            # video height, must be even numbers.
            vheight         320;
            # the max threads for ffmpeg to used.
            vthreads        12;
            # x264 profile, @see x264 -help, can be:
            # high,main,baseline
            vprofile        main;
            # x264 preset, @see x264 -help, can be: 
            # ultrafast,superfast,veryfast,faster,fast
            # medium,slow,slower,veryslow,placebo
            vpreset         medium;
            # other x264 or ffmpeg video params
            vparams {
                # ffmpeg options, @see: http://ffmpeg.org/ffmpeg.html
                t               100;
                # 264 params, @see: http://ffmpeg.org/ffmpeg-codecs.html#libx264
                coder           1;
                b_strategy      2;
                bf              3;
                refs            10;
            }
            # audio encoder name. can be:
            # libaacplus: use aac(libaacplus) audio encoder.
            # copy: donot encoder the audio stream, copy it.
            # an: disable audio output.
            acodec          libaacplus;
            # audio bitrate, in kbps. [16, 72] for libaacplus.
            abitrate        70;
            # audio sample rate. for flv/rtmp, it must be:
            # 44100,22050,11025,5512
            asample_rate    44100;
            # audio channel, 1 for mono, 2 for stereo.
            achannels       2;
            # other ffmpeg audio params
            aparams {
                # audio params, @see: http://ffmpeg.org/ffmpeg-codecs.html#Audio-Encoders
                profile:a   aac_low;
            }
            # output stream. variables:
            # [vhost] the input stream vhost.
            # [port] the intput stream port.
            # [app] the input stream app.
            # [stream] the input stream name.
            # [engine] the tanscode engine name.
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
        engine ffhd {
            enabled         on;
            vcodec          libx264;
            vbitrate        1200;
            vfps            25;
            vwidth          1382;
            vheight         576;
            vthreads        6;
            vprofile        main;
            vpreset         medium;
            vparams {
            }
            acodec          libaacplus;
            abitrate        70;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
        engine ffsd {
            enabled         on;
            vcodec          libx264;
            vbitrate        800;
            vfps            25;
            vwidth          1152;
            vheight         480;
            vthreads        4;
            vprofile        main;
            vpreset         fast;
            vparams {
            }
            acodec          libaacplus;
            abitrate        60;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
        engine fffast {
            enabled     on;
            vcodec          libx264;
            vbitrate        300;
            vfps            20;
            vwidth          768;
            vheight         320;
            vthreads        2;
            vprofile        baseline;
            vpreset         superfast;
            vparams {
            }
            acodec          libaacplus;
            abitrate        45;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
        engine vcopy {
            enabled     on;
            vcodec          copy;
            acodec          libaacplus;
            abitrate        45;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
        engine acopy {
            enabled     on;
            vcodec          libx264;
            vbitrate        300;
            vfps            20;
            vwidth          768;
            vheight         320;
            vthreads        2;
            vprofile        baseline;
            vpreset         superfast;
            vparams {
            }
            acodec          copy;
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
        engine copy {
            enabled     on;
            vcodec          copy;
            acodec          copy;
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
    }
}
# transcode all stream using the empty ffmpeg demo, donothing.
vhost ffempty.transcode.vhost.com {
    transcode {
        enabled     on;
        ffmpeg ./objs/research/ffempty;
        engine empty {
            enabled         on;
            vcodec          libx264;
            vbitrate        300;
            vfps            20;
            vwidth          768;
            vheight         320;
            vthreads        2;
            vprofile        baseline;
            vpreset         superfast;
            vparams {
            }
            acodec          libaacplus;
            abitrate        45;
            asample_rate    44100;
            achannels       2;
            aparams {
            }
            output          rtmp://127.0.0.1:[port]/[app]?vhost=[vhost]/[stream]_[engine];
        }
    }
}
# transcode all app and stream of app
vhost app.transcode.vhost.com {
    # the streaming transcode configs.
    # if app specified, transcode all streams of app.
    transcode live {
        enabled     on;
        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
        engine {
            enabled     off;
        }
    }
}
# transcode specified stream.
vhost stream.transcode.vhost.com {
    # the streaming transcode configs.
    # if stream specified, transcode the matched stream.
    transcode live/livestream {
        enabled     on;
        ffmpeg      ./objs/ffmpeg/bin/ffmpeg;
        engine {
            enabled     off;
        }
    }
}

# the vhost which forward publish streams.
vhost same.vhost.forward.vhost.com {
    # forward all publish stream to the specified server.
    # this used to split/forward the current stream for cluster active-standby,
    # active-active for cdn to build high available fault tolerance system.
    # format: {ip}:{port} {ip_N}:{port_N}
    # or specify the vhost by params, @see: change.vhost.forward.vhost.com
    # if vhost not specified, use the request vhost instead.
    forward         127.0.0.1:1936 127.0.0.1:1937;
}
# TODO: FIXME: change the forward schema with vhost.
# [plan] the vhost which forward publish streams to other vhosts.
vhost change.vhost.forward.vhost.com {
    forward         127.0.0.1:1936 127.0.0.1:1937 {
        # specify the vhost to override the vhost in client request.
        vhost       forward2.vhost.com;
        # specify the refer(pageUrl) to override the refer in client request.
        refer       http://srs/index.html;
    }
    forward         127.0.0.1:1938 {
        vhost       forward3.vhost.com;
    }
}

# the vhost disabled.
vhost removed.vhost.com {
    # whether the vhost is enabled.
    # if off, all request access denied.
    # default: on
    enabled         off;
}

# the vhost with hls specified.
vhost with-hls.vhost.com {
    hls {
        # whether the hls is enabled.
        # if off, donot write hls(ts and m3u8) when publish.
        # default: off
        enabled         on;
        # the hls output path.
        # the app dir is auto created under the hls_path.
        # for example, for rtmp stream:
        #   rtmp://127.0.0.1/live/livestream
        #   http://127.0.0.1/live/livestream.m3u8
        # where hls_path is /hls, srs will create the following files:
        #   /hls/live       the app dir for all streams.
        #   /hls/live/livestream.m3u8   the HLS m3u8 file.
        #   /hls/live/livestream-1.ts   the HLS media/ts file.
        # in a word, the hls_path is for vhost.
        # default: ./objs/nginx/html
        hls_path        /data/nginx/html;
        # the hls fragment in seconds, the duration of a piece of ts.
        # default: 10
        hls_fragment    10;
        # the hls window in seconds, the number of ts in m3u8.
        # default: 60
        hls_window      60;
    }
}
# the vhost with hls disabled.
vhost no-hls.vhost.com {
    hls {
        # whether the hls is enabled.
        # if off, donot write hls(ts and m3u8) when publish.
        # default: off
        enabled         off;
    }
}

# the vhost for min delay, donot cache any stream.
vhost min.delay.com {
    # whether cache the last gop.
    # if on, cache the last gop and dispatch to client,
    #   to enable fast startup for client, client play immediately.
    # if off, send the latest media data to client,
    #   client need to wait for the next Iframe to decode and show the video.
    # set to off if requires min delay;
    # set to on if requires client fast startup.
    # default: on
    gop_cache       off;
    # the max live queue length in seconds.
    # if the messages in the queue exceed the max length, 
    # drop the old whole gop.
    # default: 30
    queue_length    10;
}

# the vhost for antisuck.
vhost refer.anti_suck.com {
    # the common refer for play and publish.
    # if the page url of client not in the refer, access denied.
    # if not specified this field, allow all.
    # default: not specified.
    refer           github.com github.io;
    # refer for publish clients specified.
    # the common refer is not overrided by this.
    # if not specified this field, allow all.
    # default: not specified.
    refer_publish   github.com github.io;
    # refer for play clients specified.
    # the common refer is not overrided by this.
    # if not specified this field, allow all.
    # default: not specified.
    refer_play      github.com github.io;
}

# config for the pithy print,
# which always print constant message specified by interval,
# whatever the clients in concurrency.
pithy_print {
    # shared print interval for all publish clients, in milliseconds.
    # if not specified, set to 1100.
    publish         2000;
    # shared print interval for all play clients, in milliseconds.
    # if not specified, set to 1300.
    play            3000;
    # shared print interval for all forwarders, in milliseconds.
    # if not specified, set to 2000.
    forwarder       3000;
    # shared print interval for all encoders, in milliseconds.
    # if not specified, set to 2000.
    encoder        3000;
    # shared print interval for all hls, in milliseconds.
    # if not specified, set to 2000.
    hls            3000;
}