Janus の履歴(No.86)

Janus WebRTC Server[edit]

Build (Rocky Linux 9)[edit]

ツール[edit]

dnf -y install jansson-devel libconfig-devel libmicrohttpd-devel meson ninja-build

meson: cmake みたいなビルド設定ツール
ninja: make みたいなビルドツール

dnf install libnice libnice-devel
dnf install libwebsockets libwebsockets-devel
dnf install usrsctp usrsctp-devel

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libsrtp2 (SRTP: Secure Real-time Transport Protocol)[edit]

#git clone https://github.com/cisco/libsrtp.git  # このままだと libsrtp3 がダウンロードされる
git clone --branch v2.5.0 --depth 1 https://github.com/cisco/libsrtp.git libsrtp
cd libsrtp
./configure --prefix=/usr/local --enable-openssl
make -j"$(nproc)"
make install

↑

Janus[edit]

git clone https://github.com/meetecho/janus-gateway.git
cd janus-gateway
./autogen.sh
./configure --prefix=/usr/local --enable-rest --enable-websockets --enable-data-channels --disable-rabbitmq --disable-mqtt --disable-docs --enable-libsrtp2
make -j"$(nproc)"
make install
make configs

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設定[edit]

↑

設定ファイル[edit]

↑

/usr/local/etc/janus/janus.jcfg[edit]

api_secret = ""        # Janus REST API 用の認証キー
admin_secret = ""      # Janus 管理用 API の認証キー

coturn を使用するなら，以下を追加

nat: {
       stun_server = "janus.jogrid.net"
       stun_port = 3478
       #nice_debug = "nice_debug option is NOT SUPPORTED ANYMORE! Please set NICE_DEBUG and G_MESSAGES_DEBUG env vars when starting Janus"
       #full_trickle = true
       #ice_nomination = "regular"
       #ice_consent_freshness = true
       #ice_keepalive_conncheck = true
       #ice_lite = true
       #ice_tcp = true

↑

/usr/local/etc/janus/janus.transport.http.jcfg (デフォルト)[edit]

http = true
port = 8088      # for REST

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/usr/local/etc/janus/janus.transport.websockets.jcfg (デフォルト)[edit]

ws = true
ws_port = 8188   # for Web Socket

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/usr/local/etc/janus/janus.plugin.audiobridge.jcfg[edit]

general: {
 # 必要に応じて設定（例）
 # string_ids = true
 # rtp_port_range = "50000-60000"
 # local_ip = "1.2.3.4"
 # events = true
}

room-1234: {
 description = "Demo Room"
 is_private = false
 secret = "room-secret"    # ルーム操作用パスワード
 pin = "room-pin"          # 参加時パスワード（必要なら）
 sampling_rate = 48000     # or 16000 
 spatial_audio = true
 audiolevel_ext = true
 audiolevel_event = true
 audio_active_packets = 100
 audio_level_average = 25
 record = false
 # record_dir = "/var/recordings/"
 # record_file = "room-1234.wav"
 # allow_rtp_participants = false
 # rtp_forward_* = ...     # 外部RTP転送を使う場合のみ
}

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Systemd[edit]

↑

janus.service[edit]

[Unit]
Description=Janus WebRTC Server
After=network.target

[Service]
Type=simple
ExecStart=/usr/local/bin/janus -F /usr/local/etc/janus
Restart=on-failure
User=root

[Install]
WantedBy=multi-user.target

↑

REST (8088)[edit]

curl http://localhost:8088/janus/info

↑

WS (8188)[edit]

printf '%s\n' '{"janus":"info","transaction":"t1"}' | websocat -H='Sec-WebSocket-Protocol: janus-protocol' - ws://127.0.0.1:8188/janus

↑

WSS[edit]

printf '%s\n' '{"janus":"info","transaction":"t1"}' | websocat --text -H='Sec-WebSocket-Protocol: janus-protocol' -  wss://janus.jogrid.net/janusws

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Coturn の STUN/TURN 動作確認[edit]

dnf install coturn-utils

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STUN 動作（UDP 3478）[edit]

# turnutils_stunclient -p 3478 janus.jogrid.net
0: (71074): INFO: IPv4. UDP reflexive addr: 202.26.150.72:35841

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TURN 動作（UDP/TCP 3478, TLS 5349）[edit]

turnutils_peer -L 0.0.0.0 -p 5000

TURN（UDP 3478）

TURN/TLS（5349)

↑

Janus + Coturn 経由の WebRTC 動作確認[edit]

↑

Janus の履歴(No.86)

Janus WebRTC Server[edit]

Build (Rocky Linux 9)[edit]

ツール[edit]

libsrtp2 (SRTP: Secure Real-time Transport Protocol)[edit]

最新版[edit]

Janus[edit]

設定[edit]

設定ファイル[edit]

/usr/local/etc/janus/janus.jcfg[edit]

/usr/local/etc/janus/janus.transport.http.jcfg (デフォルト)[edit]

/usr/local/etc/janus/janus.transport.websockets.jcfg (デフォルト)[edit]

/usr/local/etc/janus/janus.plugin.audiobridge.jcfg[edit]

Systemd[edit]

janus.service[edit]

Apache で HTTPS, WSS リバースプロキシ[edit]

仮想ホスト設定（WSS対応）[edit]

STUN/TURN（coturn）[edit]

設定[edit]

TEST[edit]

Janus の単体疎通テスト[edit]

REST (8088)[edit]

WS (8188)[edit]

WSS[edit]

Coturn の STUN/TURN 動作確認[edit]

STUN 動作（UDP 3478）[edit]

TURN 動作（UDP/TCP 3478, TLS 5349）[edit]

Janus + Coturn 経由の WebRTC 動作確認[edit]

ICE 候補の種類を確認（ブラウザ DevTools）[edit]