README: add better alternative

OvenMediaEngine

See merge request nounous/ghostream!8

.gitignore

@@ -17,3 +17,9 @@ pkged.go
 # Profiler and test files
 *.prof
 *.test
+
+# Javascript tools
+.eslintrc.js
+node_modules
+package.json
+package-lock.json

.gitlab-ci.yml

@@ -2,8 +2,18 @@ stages:
   - test
   - quality-assurance
 
+.go-cache:
+  variables:
+    GOPATH: $CI_PROJECT_DIR/.go
+  before_script:
+    - mkdir -p .go
+  cache:
+    paths:
+      - .go/pkg/mod/
+
 unit_tests:
   image: golang:1.15-alpine
+  extends: .go-cache
   stage: test
   before_script:
     - apk add --no-cache -X http://dl-cdn.alpinelinux.org/alpine/edge/community build-base ffmpeg gcc libsrt-dev
@@ -18,6 +28,7 @@ unit_tests:
 
 linters:
   image: golang:1.15-alpine
+  extends: .go-cache
   stage: quality-assurance
   script:
     - go get -u golang.org/x/lint/golint

Dockerfile

@@ -12,6 +12,6 @@ FROM alpine:3.12
 RUN apk add --no-cache -X https://dl-cdn.alpinelinux.org/alpine/edge/community/ ffmpeg libsrt
 COPY --from=build_base /code/out/ghostream /app/ghostream
 WORKDIR /app
-# 2112 for monitoring, 8023 for Telnet, 8080 for Web, 9710 for SRT, 10000-10005 (UDP) for WebRTC
-EXPOSE 2112 8023 8080 9710/udp 10000-10005/udp
+# 2112 for monitoring, 8023 for Telnet, 8080 for Web, 9710 for SRT, 10000-11000 (UDP) for WebRTC
+EXPOSE 2112 8023 8080 9710/udp 10000-11000/udp
 CMD ["/app/ghostream"]

README.md

@@ -11,6 +11,13 @@
 
 This project was developped at [Cr@ns](https://crans.org/) to stream events.
 
+> **Note**
+> *This project is no longer maintained!*
+>
+> As an alternative, you should try [Galène](https://galene.org/) which supports [WebRTC-HTTP ingestion protocol (WHIP)](https://datatracker.ietf.org/doc/draft-ietf-wish-whip/) for low-latency streaming.
+> OBS Studio introduced WHIP output in version 30.0.
+> Galène supports WHIP since Galène 0.8.
+
 Features:
 
 -   WebRTC playback with a lightweight web interface.

auth/auth.go

@@ -20,7 +20,7 @@ type Options struct {
 
 // Backend to log user in
 type Backend interface {
-	Login(string, string) (bool, error)
+	Login(string, string) (bool, string, error)
 	Close()
 }
 

auth/basic/basic.go

@@ -23,15 +23,15 @@ type Basic struct {
 
 // Login hashs password and compare
 // Returns (true, nil) if success
-func (a Basic) Login(username string, password string) (bool, error) {
+func (a Basic) Login(username string, password string) (bool, string, error) {
 	hash, ok := a.Cfg.Credentials[username]
 	if !ok {
-		return false, errors.New("user not found in credentials")
+		return false, "", errors.New("user not found in credentials")
 	}
 	err := bcrypt.CompareHashAndPassword([]byte(hash), []byte(password))
 
 	// Login succeeded if no error
-	return err == nil, err
+	return err == nil, username, err
 }
 
 // Close has no connection to close

auth/basic/basic_test.go

@@ -6,23 +6,23 @@ import (
 
 func TestBasicLogin(t *testing.T) {
 	basicCredentials := make(map[string]string)
-	basicCredentials["demo"] = "$2b$15$LRnG3eIHFlYIguTxZOLH7eHwbQC/vqjnLq6nDFiHSUDKIU.f5/1H6"
+	basicCredentials["demo"] = "$2b$10$xuU7XFwmRX2CMgdSaA8rM.4Y8.BtRNzhUedwN0G8tCegDRNUERTCS"
 
 	// Test good credentials
 	backend, _ := New(&Options{Credentials: basicCredentials})
-	ok, err := backend.Login("demo", "demo")
+	ok, _, err := backend.Login("demo", "demo")
 	if !ok {
 		t.Error("Error while logging with the basic authentication:", err)
 	}
 
 	// Test bad username
-	ok, err = backend.Login("baduser", "demo")
+	ok, _, err = backend.Login("baduser", "demo")
 	if ok {
 		t.Error("Authentification failed to fail:", err)
 	}
 
 	// Test bad password
-	ok, err = backend.Login("demo", "badpass")
+	ok, _, err = backend.Login("demo", "badpass")
 	if ok {
 		t.Error("Authentification failed to fail:", err)
 	}

auth/ldap/ldap.go

@@ -3,12 +3,15 @@ package ldap
 
 import (
 	"github.com/go-ldap/ldap/v3"
+	"log"
+	"strings"
 )
 
 // Options holds package configuration
 type Options struct {
-	URI    string
-	UserDn string
+	Aliases map[string]map[string]string
+	URI     string
+	UserDn  string
 }
 
 // LDAP authentification backend
@@ -19,13 +22,37 @@ type LDAP struct {
 
 // Login tries to bind to LDAP
 // Returns (true, nil) if success
-func (a LDAP) Login(username string, password string) (bool, error) {
-	// Try to bind as user
-	bindDn := "cn=" + username + "," + a.Cfg.UserDn
-	err := a.Conn.Bind(bindDn, password)
+func (a LDAP) Login(username string, password string) (bool, string, error) {
+	aliasSplit := strings.SplitN(username, "__", 2)
+	potentialUsernames := []string{username}
 
-	// Login succeeded if no error
-	return err == nil, err
+	if len(aliasSplit) == 2 {
+		alias := aliasSplit[0]
+		trueUsername := aliasSplit[1]
+		// Resolve stream alias if necessary
+		if aliases, ok := a.Cfg.Aliases[alias]; ok {
+			if _, ok := aliases[trueUsername]; ok {
+				log.Printf("[LDAP] Use stream alias %s for username %s", alias, trueUsername)
+				potentialUsernames = append(potentialUsernames, trueUsername)
+			}
+		}
+	}
+
+	var err error = nil
+	for _, username := range potentialUsernames {
+		// Try to bind as user
+		bindDn := "cn=" + username + "," + a.Cfg.UserDn
+		log.Printf("[LDAP] Logging to %s...", bindDn)
+		err = a.Conn.Bind(bindDn, password)
+		if err == nil {
+			// Login succeeded if no error
+			return true, aliasSplit[0], nil
+		}
+	}
+
+	log.Printf("[LDAP] Logging failed: %s", err)
+	// Unable to log in
+	return err == nil, "", err
 }
 
 // Close LDAP connection

docs/Server-docker.xml

@@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+
+<Server version="7">
+    <Name>OvenMediaEngine</Name>
+    <Type>origin</Type>
+    <IP>*</IP>
+
+    <Bind>
+        <Providers>
+            <RTMP>
+                <Port>1915</Port>
+            </RTMP>
+        </Providers>
+        <Publishers>
+            <WebRTC>
+                <Signalling>
+                    <Port>3333</Port>
+                </Signalling>
+                <IceCandidates>
+                    <IceCandidate>*:10006-10010/udp</IceCandidate>
+                </IceCandidates>
+            </WebRTC>
+            <HLS>
+              <Port>80</Port>
+            </HLS>
+            <DASH>
+                <Port>80</Port>
+            </DASH>
+        </Publishers>
+    </Bind>
+
+    <VirtualHosts>
+        <VirtualHost>
+            <Name>default</Name>
+            <Domain>
+                <Names>
+                    <Name>*</Name>
+                </Names>
+            </Domain>
+            <Applications>
+                <Application>
+                    <Name>play</Name>
+                    <Type>live</Type>
+                    <Encodes>
+                        <Encode>
+                            <Name>opus_only</Name>
+                            <Audio>
+                                <Codec>opus</Codec>
+                                <Bitrate>128000</Bitrate>
+                                <Samplerate>48000</Samplerate>
+                                <Channel>2</Channel>
+                            </Audio>
+                            <Video>
+                                <Bypass>true</Bypass>
+                            </Video>
+                        </Encode>
+                        <Encode>
+                            <Name>bypass</Name>
+                            <Audio>
+                                <Bypass>true</Bypass>
+                            </Audio>
+                            <Video>
+                                <Bypass>true</Bypass>
+                            </Video>
+                        </Encode>
+
+                    </Encodes>
+                    <Streams>
+                        <Stream>
+                            <Name>${OriginStreamName}</Name>
+                            <Profiles>
+                                <Profile>opus_only</Profile>
+                            </Profiles>
+                        </Stream>
+                        <Stream>
+                            <Name>${OriginStreamName}_bypass</Name>
+                            <Profiles>
+                                <Profile>bypass</Profile>
+                            </Profiles>
+                        </Stream>
+
+                    </Streams>
+                    <Providers>
+                        <RTMP>
+                            <BlockDuplicateStreamName>true</BlockDuplicateStreamName>
+                        </RTMP>
+                    </Providers>
+                    <Publishers>
+                        <ThreadCount>2</ThreadCount>
+                        <WebRTC>
+                            <Timeout>30000</Timeout>
+                        </WebRTC>
+                        <HLS>
+                            <SegmentDuration>2</SegmentDuration>
+                            <SegmentCount>2</SegmentCount>
+                            <CrossDomain>
+                                <Url>*</Url>
+                            </CrossDomain>
+                        </HLS>
+                        <DASH>
+                            <SegmentDuration>2</SegmentDuration>
+                            <SegmentCount>2</SegmentCount>
+                            <CrossDomain>
+                                <Url>*</Url>
+                            </CrossDomain>
+                        </DASH>
+                        <LLDASH>
+                            <SegmentDuration>2</SegmentDuration>
+                            <CrossDomain>
+                                <Url>*</Url>
+                            </CrossDomain>
+                        </LLDASH>
+                    </Publishers>
+                </Application>
+            </Applications>
+        </VirtualHost>
+    </VirtualHosts>
+</Server>

docs/docker-compose.yml

@@ -26,11 +26,10 @@ services:
       - "--certificatesResolvers.mytlschallenge.acme.httpChallenge.entryPoint=web"
 
   ghostream:
-    build: ..
+    build: https://gitlab.crans.org/nounous/ghostream.git
     restart: always
     ports:
       - 9710:9710/udp
-      - 10000-10005:10000-10005/udp
     volumes:
       - ./ghostream_data:/etc/ghostream:ro
     labels:
@@ -40,3 +39,30 @@ services:
       - "traefik.http.routers.ghostream.tls.certresolver=mytlschallenge"
       - "traefik.http.routers.ghostream.service=ghostream"
       - "traefik.http.services.ghostream.loadbalancer.server.port=8080"
+
+  ovenmediaengine:
+    image: airensoft/ovenmediaengine:0.10.8
+    restart: always
+    ports:
+      # WebRTC ICE
+      - 10006-10010:10006-10010/udp
+    volumes:
+      - ./ovenmediaengine_data/conf/Server-docker.xml:/opt/ovenmediaengine/bin/origin_conf/Server.xml:ro
+    labels:
+      - "traefik.http.middlewares.sslheader.headers.customrequestheaders.X-Forwarded-Proto=https"
+
+      - "traefik.http.routers.ovenmediaengine.rule=Host(`stream.example.com`) && PathPrefix(`/play/`)"
+      - "traefik.http.routers.ovenmediaengine.priority=101"
+      - "traefik.http.routers.ovenmediaengine.entrypoints=websecure"
+      - "traefik.http.routers.ovenmediaengine.tls.certresolver=mytlschallenge"
+      - "traefik.http.services.ovenmediaengine.loadbalancer.server.port=3333"
+      - "traefik.http.routers.ovenmediaengine.service=ovenmediaengine"
+      - "traefik.http.routers.ovenmediaengine.middlewares=sslheader"
+
+      - "traefik.http.routers.ovenmediaengine-hls.rule=Host(`stream.example.com`) && Path(`/play/{app_name:.*}/{filename:.*}.{ext:(m3u8|mpd|ts)}`)"
+      - "traefik.http.routers.ovenmediaengine-hls.priority=102"
+      - "traefik.http.routers.ovenmediaengine-hls.entrypoints=websecure"
+      - "traefik.http.routers.ovenmediaengine-hls.tls.certresolver=mytlschallenge"
+      - "traefik.http.services.ovenmediaengine-hls.loadbalancer.server.port=80"
+      - "traefik.http.routers.ovenmediaengine-hls.service=ovenmediaengine-hls"
+      - "traefik.http.routers.ovenmediaengine-hls.middlewares=sslheader"

docs/ghostream.example.yml

@@ -22,29 +22,40 @@ auth:
 
   # Basic backend configuration
   # To generate bcrypt hashed password from Python, use:
-  # python3 -c 'import bcrypt; print(bcrypt.hashpw(b"PASSWORD", bcrypt.gensalt(rounds=15)).decode("ascii"))'
+  # python3 -c 'import bcrypt; print(bcrypt.hashpw(b"PASSWORD", bcrypt.gensalt(rounds=12)).decode("ascii"))'
   #
   #basic:
   #  credentials:
   #    # Demo user with password "demo"
-  #    demo: $2b$15$LRnG3eIHFlYIguTxZOLH7eHwbQC/vqjnLq6nDFiHSUDKIU.f5/1H6
+  #    demo: $2b$10$xuU7XFwmRX2CMgdSaA8rM.4Y8.BtRNzhUedwN0G8tCegDRNUERTCS
 
   # LDAP backend configuration
   #
   #ldap:
   #  uri: ldap://127.0.0.1:389
   #  userdn: cn=users,dc=example,dc=com
+  #
+  #  # You can define aliases, to stream on stream.example.com/example with the credentials of the demo account.
+  #  # You will have to use the streamid example__demo:password
+  #  aliases:
+  #    example:
+  #      demo: ignored
+  #
 
 ## Stream forwarding ##
 # Forward an incoming stream to other servers
 # The URL can be anything FFMpeg can accept as an stream output
+# If a file is specified, the name may contains %Y, %m, %d, %H, %M or %S
+# that will be replaced by the current date information.
 forwarding:
   # By default nothing is forwarded.
   #
   # This example forwards a stream named "demo" to Twitch and YouTube,
+  # and save the record in a timestamped-file,
   #demo:
   #  - rtmp://live-cdg.twitch.tv/app/STREAM_KEY
   #  - rtmp://a.rtmp.youtube.com/live2/STREAM_KEY
+  #  - /home/ghostream/lives/%name/live-%Y-%m-%d-%H-%M-%S.flv
 
 ## Prometheus monitoring ##
 # Expose a monitoring endpoint for Prometheus
@@ -57,6 +68,19 @@ monitoring:
   # To limit access to only localhost, use 127.0.0.1:2112
   #listenAddress: :2112
 
+## OvenMediaEngine ##
+# Send the stream data to OvenMediaEngine to handle properly the web client
+ome:
+  # If you disable OME module, the laggy webrtc client will be used.
+  #
+  #enabled: true
+  #
+  # The URL where OME listens RTMP, without the prefix.
+  #url: ovenmediaengine:1915
+  #
+  # The OME app where OME is waiting for the data of Ghostream.
+  #app: play
+
 ## SRT server ##
 # The SRT server receive incoming stream and can also serve video to clients.
 srt:
@@ -156,17 +180,29 @@ web:
   #
   #widgetURL: ""
 
+  # IMPORTANT, CHANGE THIS
+  # You need to declare which entity you are and to specify an address to claim some content.
+  legalMentionsEntity: "l'association Crans"
+  legalMentionsAddress: "61 Avenue du Président Wilson, 94235 Cachan Cedex, France"
+  legalMentionsFullAddress:
+    - Association Cr@ns - ENS Paris-Saclay
+    - Notification de Contenus Illicites
+    - 4, avenue des Sciences
+    - 91190 Gif-sur-Yvette
+    - France
+  legalMentionsEmail: "bureau[at]crans.org"
+
 ## WebRTC server ##
 webrtc:
   # If you disable webrtc module, the web client won't be able to play streams.
   #
-  #enabled: true
+  #enabled: false
 
   # UDP port range used to stream
   # This range must be opened in your firewall.
   #
   #minPortUDP: 10000
-  #maxPortUDP: 10005
+  #maxPortUDP: 11000
 
   # STUN servers, you should host your own Coturn instance
   #

go.mod

@@ -3,13 +3,14 @@ module gitlab.crans.org/nounous/ghostream
 go 1.13
 
 require (
-	github.com/3d0c/gmf v0.0.0-20200614092945-e58d8d5a6035
 	github.com/go-ldap/ldap/v3 v3.2.3
-	github.com/haivision/srtgo v0.0.0-20200731151239-e00427ae473a
+	github.com/gorilla/websocket v1.4.0
+	github.com/haivision/srtgo v0.0.0-20201025191851-67964e8f497a
 	github.com/markbates/pkger v0.17.1
-	github.com/pion/rtp v1.6.0
-	github.com/pion/webrtc/v3 v3.0.0-beta.5
+	github.com/pion/rtp v1.6.1
+	github.com/pion/webrtc/v3 v3.0.0-beta.10
+	github.com/pkg/profile v1.5.0
 	github.com/prometheus/client_golang v1.7.1
 	github.com/sherifabdlnaby/configuro v0.0.2
-	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
+	golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a
 )

go.sum

@@ -7,8 +7,6 @@ dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBr
 dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
 dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
 git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
-github.com/3d0c/gmf v0.0.0-20200614092945-e58d8d5a6035 h1:QZb1aMKxiYdGGieyIDmXuw9I9YcGWGViTrpQ6vcZX7Q=
-github.com/3d0c/gmf v0.0.0-20200614092945-e58d8d5a6035/go.mod h1:0QMRcUq2JsDECeAq7bj4h79k7XbhtTsrPUQf6G7qfPs=
 github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c h1:/IBSNwUN8+eKzUzbJPqhK839ygXJ82sde8x3ogr6R28=
 github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c/go.mod h1:chxPXzSsl7ZWRAuOIE23GDNzjWuZquvFlgA8xmpunjU=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
@@ -115,14 +113,15 @@ github.com/googleapis/gax-go v2.0.0+incompatible/go.mod h1:SFVmujtThgffbyetf+mdk
 github.com/googleapis/gax-go/v2 v2.0.3/go.mod h1:LLvjysVCY1JZeum8Z6l8qUty8fiNwE08qbEPm1M08qg=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
+github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
 github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
 github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
 github.com/grpc-ecosystem/grpc-gateway v1.5.0/go.mod h1:RSKVYQBd5MCa4OVpNdGskqpgL2+G+NZTnrVHpWWfpdw=
 github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
-github.com/haivision/srtgo v0.0.0-20200731151239-e00427ae473a h1:JliMkv/mAqM5+QzG6Hkw1XcVl1crU8yIQGnhppMv7s0=
-github.com/haivision/srtgo v0.0.0-20200731151239-e00427ae473a/go.mod h1:yVZ4oACfcnUAcxrh+0b6IuIWfkHLK3IAQ99tuuhRx54=
+github.com/haivision/srtgo v0.0.0-20201025191851-67964e8f497a h1:54abJQezjMoiP+xMQ3ZQbcDXFjqytAYm/n0EVqrYeXg=
+github.com/haivision/srtgo v0.0.0-20201025191851-67964e8f497a/go.mod h1:7izzTiCO3zc9ZIVTFMjxUiYL+kgryFP9rl3bsweqdmc=
 github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
@@ -193,29 +192,30 @@ github.com/pelletier/go-toml v1.2.0 h1:T5zMGML61Wp+FlcbWjRDT7yAxhJNAiPPLOFECq181
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/pion/datachannel v1.4.21 h1:3ZvhNyfmxsAqltQrApLPQMhSFNA+aT87RqyCq4OXmf0=
 github.com/pion/datachannel v1.4.21/go.mod h1:oiNyP4gHx2DIwRzX/MFyH0Rz/Gz05OgBlayAI2hAWjg=
-github.com/pion/dtls/v2 v2.0.2 h1:FHCHTiM182Y8e15aFTiORroiATUI16ryHiQh8AIOJ1E=
-github.com/pion/dtls/v2 v2.0.2/go.mod h1:27PEO3MDdaCfo21heT59/vsdmZc0zMt9wQPcSlLu/1I=
-github.com/pion/ice/v2 v2.0.6 h1:7Jf3AX6VIjgO2tGRyT0RGGxkDYOF4m5I5DQzf34IN1Y=
-github.com/pion/ice/v2 v2.0.6/go.mod h1:xOXvVRlQC/B7FPJeJYKY6IepFRAKb3t1un1K9boYaaQ=
+github.com/pion/dtls/v2 v2.0.3 h1:3qQ0s4+TXD00rsllL8g8KQcxAs+Y/Z6oz618RXX6p14=
+github.com/pion/dtls/v2 v2.0.3/go.mod h1:TUjyL8bf8LH95h81Xj7kATmzMRt29F/4lxpIPj2Xe4Y=
+github.com/pion/ice/v2 v2.0.9 h1:oHbiN6Q9tgb8Gfu3I4cbr5mHRE1uqiuFABQ8CbWjIyk=
+github.com/pion/ice/v2 v2.0.9/go.mod h1:NK+o39ynb+N1YSj9fPgWs3vjVcrsWw0KCr/311MqVq8=
 github.com/pion/logging v0.2.2 h1:M9+AIj/+pxNsDfAT64+MAVgJO0rsyLnoJKCqf//DoeY=
 github.com/pion/logging v0.2.2/go.mod h1:k0/tDVsRCX2Mb2ZEmTqNa7CWsQPc+YYCB7Q+5pahoms=
 github.com/pion/mdns v0.0.4 h1:O4vvVqr4DGX63vzmO6Fw9vpy3lfztVWHGCQfyw0ZLSY=
 github.com/pion/mdns v0.0.4/go.mod h1:R1sL0p50l42S5lJs91oNdUL58nm0QHrhxnSegr++qC0=
 github.com/pion/quic v0.1.4 h1:bNz9sCJjlM3GqMdq7Fne57FiWfdyiJ++yHVbuqeoD3Y=
 github.com/pion/quic v0.1.4/go.mod h1:dBhNvkLoQqRwfi6h3Vqj3IcPLgiW7rkZxBbRdp7Vzvk=
-github.com/pion/randutil v0.0.0/go.mod h1:XcJrSMMbbMRhASFVOlj/5hQial/Y8oH/HVo7TBZq+j8=
 github.com/pion/randutil v0.1.0 h1:CFG1UdESneORglEsnimhUjf33Rwjubwj6xfiOXBa3mA=
 github.com/pion/randutil v0.1.0/go.mod h1:XcJrSMMbbMRhASFVOlj/5hQial/Y8oH/HVo7TBZq+j8=
-github.com/pion/rtcp v1.2.3 h1:2wrhKnqgSz91Q5nzYTO07mQXztYPtxL8a0XOss4rJqA=
-github.com/pion/rtcp v1.2.3/go.mod h1:zGhIv0RPRF0Z1Wiij22pUt5W/c9fevqSzT4jje/oK7I=
-github.com/pion/rtp v1.6.0 h1:4Ssnl/T5W2LzxHj9ssYpGVEQh3YYhQFNVmSWO88MMwk=
-github.com/pion/rtp v1.6.0/go.mod h1:QgfogHsMBVE/RFNno467U/KBqfUywEH+HK+0rtnwsdI=
+github.com/pion/rtcp v1.2.4 h1:NT3H5LkUGgaEapvp0HGik+a+CpflRF7KTD7H+o7OWIM=
+github.com/pion/rtcp v1.2.4/go.mod h1:52rMNPWFsjr39z9B9MhnkqhPLoeHTv1aN63o/42bWE0=
+github.com/pion/rtp v1.6.1 h1:2Y2elcVBrahYnHKN2X7rMHX/r1R4TEBMP1LaVu/wNhk=
+github.com/pion/rtp v1.6.1/go.mod h1:bDb5n+BFZxXx0Ea7E5qe+klMuqiBrP+w8XSjiWtCUko=
 github.com/pion/sctp v1.7.10 h1:o3p3/hZB5Cx12RMGyWmItevJtZ6o2cpuxaw6GOS4x+8=
 github.com/pion/sctp v1.7.10/go.mod h1:EhpTUQu1/lcK3xI+eriS6/96fWetHGCvBi9MSsnaBN0=
-github.com/pion/sdp/v3 v3.0.1 h1:we4OyeTT6s+6sxrAKy/LVywskx1dzUQlh4xu3b+iAs0=
-github.com/pion/sdp/v3 v3.0.1/go.mod h1:bNiSknmJE0HYBprTHXKPQ3+JjacTv5uap92ueJZKsRk=
-github.com/pion/srtp v1.5.1 h1:9Q3jAfslYZBt+C69SI/ZcONJh9049JUHZWYRRf5KEKw=
-github.com/pion/srtp v1.5.1/go.mod h1:B+QgX5xPeQTNc1CJStJPHzOlHK66ViMDWTT0HZTCkcA=
+github.com/pion/sctp v1.7.11 h1:UCnj7MsobLKLuP/Hh+JMiI/6W5Bs/VF45lWKgHFjSIE=
+github.com/pion/sctp v1.7.11/go.mod h1:EhpTUQu1/lcK3xI+eriS6/96fWetHGCvBi9MSsnaBN0=
+github.com/pion/sdp/v3 v3.0.2 h1:UNnSPVaMM+Pdu/mR9UvAyyo6zkdYbKeuOooCwZvTl/g=
+github.com/pion/sdp/v3 v3.0.2/go.mod h1:bNiSknmJE0HYBprTHXKPQ3+JjacTv5uap92ueJZKsRk=
+github.com/pion/srtp v1.5.2 h1:25DmvH+fqKZDqvX64vTwnycVwL9ooJxHF/gkX16bDBY=
+github.com/pion/srtp v1.5.2/go.mod h1:NiBff/MSxUwMUwx/fRNyD/xGE+dVvf8BOCeXhjCXZ9U=
 github.com/pion/stun v0.3.5 h1:uLUCBCkQby4S1cf6CGuR9QrVOKcvUwFeemaC865QHDg=
 github.com/pion/stun v0.3.5/go.mod h1:gDMim+47EeEtfWogA37n6qXZS88L5V6LqFcf+DZA2UA=
 github.com/pion/transport v0.8.10/go.mod h1:tBmha/UCjpum5hqTWhfAEs3CO4/tHSg0MYRhSzR+CZ8=
@@ -226,12 +226,14 @@ github.com/pion/turn/v2 v2.0.4 h1:oDguhEv2L/4rxwbL9clGLgtzQPjtuZwCdoM7Te8vQVk=
 github.com/pion/turn/v2 v2.0.4/go.mod h1:1812p4DcGVbYVBTiraUmP50XoKye++AMkbfp+N27mog=
 github.com/pion/udp v0.1.0 h1:uGxQsNyrqG3GLINv36Ff60covYmfrLoxzwnCsIYspXI=
 github.com/pion/udp v0.1.0/go.mod h1:BPELIjbwE9PRbd/zxI/KYBnbo7B6+oA6YuEaNE8lths=
-github.com/pion/webrtc/v3 v3.0.0-beta.5 h1:A1hApeo77Kp2sHWwd53rIHZZm5W9JXEn//5jHj9+fdc=
-github.com/pion/webrtc/v3 v3.0.0-beta.5/go.mod h1:HjQaNPq5SdNazGlwiim6/lWBkZD97mPPyDttr7byNA4=
+github.com/pion/webrtc/v3 v3.0.0-beta.10 h1:1aBn9jv/oe4v2Uf47HutWIjg2i2ZP/O7HqpgKPqSuhE=
+github.com/pion/webrtc/v3 v3.0.0-beta.10/go.mod h1:GlriYYHJ5KkNsCunm3oFDPql4TDTrrNoI9iSWWSnafA=
 github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pkg/profile v1.5.0 h1:042Buzk+NhDI+DeSAA62RwJL8VAuZUMQZUjCsRz1Mug=
+github.com/pkg/profile v1.5.0/go.mod h1:qBsxPvzyUincmltOk6iyRVxHYg4adc0OFOv72ZdLa18=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_golang v0.8.0/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
@@ -350,6 +352,8 @@ golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9 h1:vEg9joUBmeBcK9iSJftGNf
 golang.org/x/crypto v0.0.0-20200604202706-70a84ac30bf9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a h1:vclmkQCjlDX5OydZ9wv8rBCcS0QyQY66Mpf/7BZbInM=
+golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -385,6 +389,8 @@ golang.org/x/net v0.0.0-20200625001655-4c5254603344/go.mod h1:/O7V0waA8r7cgGh81R
 golang.org/x/net v0.0.0-20200707034311-ab3426394381/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202 h1:VvcQYSHwXgi7W+TpUR6A9g6Up98WAHf3f/ulnJ62IyA=
 golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81Ro3o1hOxt32SMVPicZroKQ2sZA=
+golang.org/x/net v0.0.0-20201002202402-0a1ea396d57c h1:dk0ukUIHmGHqASjP0iue2261isepFCC6XRCSd1nHgDw=
+golang.org/x/net v0.0.0-20201002202402-0a1ea396d57c/go.mod h1:iQL9McJNjoIa5mjH6nYTCTZXUN6RP+XW3eib7Ya3XcI=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -417,6 +423,10 @@ golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200610111108-226ff32320da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1 h1:ogLJMz+qpzav7lGMh10LMvAkM/fAoGlaiiHYiFYdm80=
 golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200926100807-9d91bd62050c h1:38q6VNPWR010vN82/SB121GujZNIfAUb4YttE2rhGuc=
+golang.org/x/sys v0.0.0-20200926100807-9d91bd62050c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f h1:+Nyd8tzPX9R7BWHguqsrbFdRx3WQ/1ib8I44HXV5yTA=
+golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -446,6 +456,8 @@ golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8T
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/api v0.0.0-20180910000450-7ca32eb868bf/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
 google.golang.org/api v0.0.0-20181030000543-1d582fd0359e/go.mod h1:4mhQ8q/RsB7i+udVvVy5NUi08OU8ZlA0gRVgrF7VFY0=
 google.golang.org/api v0.1.0/go.mod h1:UGEZY7KEX120AnNLIHFMKIo4obdJhkp2tPbaPlQx13Y=

internal/config/config.go

@@ -2,7 +2,7 @@
 package config
 
 import (
-	"gitlab.crans.org/nounous/ghostream/transcoder/audio"
+	"gitlab.crans.org/nounous/ghostream/stream/ovenmediaengine"
 	"net"
 
 	"github.com/sherifabdlnaby/configuro"
@@ -24,6 +24,7 @@ type Config struct {
 	Auth       auth.Options
 	Forwarding forwarding.Options
 	Monitoring monitoring.Options
+	OME        ovenmediaengine.Options
 	Srt        srt.Options
 	Telnet     telnet.Options
 	Transcoder transcoder.Options
@@ -41,8 +42,9 @@ func New() *Config {
 				Credentials: make(map[string]string),
 			},
 			LDAP: ldap.Options{
-				URI:    "ldap://127.0.0.1:389",
-				UserDn: "cn=users,dc=example,dc=com",
+				Aliases: make(map[string]map[string]string),
+				URI:     "ldap://127.0.0.1:389",
+				UserDn:  "cn=users,dc=example,dc=com",
 			},
 		},
 		Forwarding: make(map[string][]string),
@@ -50,6 +52,11 @@ func New() *Config {
 			Enabled:       true,
 			ListenAddress: ":2112",
 		},
+		OME: ovenmediaengine.Options{
+			Enabled: true,
+			URL:     "ovenmediaengine:1915",
+			App:     "play",
+		},
 		Srt: srt.Options{
 			Enabled:       true,
 			ListenAddress: ":9710",
@@ -60,10 +67,6 @@ func New() *Config {
 			ListenAddress: ":8023",
 		},
 		Transcoder: transcoder.Options{
-			Audio: audio.Options{
-				Enabled: true,
-				Bitrate: 160,
-			},
 			Text: text.Options{
 				Enabled:   false,
 				Width:     80,
@@ -80,10 +83,15 @@ func New() *Config {
 			MapDomainToStream:           make(map[string]string),
 			PlayerPoster:                "/static/img/no_stream.svg",
 			ViewersCounterRefreshPeriod: 20000,
+			LegalMentionsEntity:         "l'association Crans",
+			LegalMentionsAddress:        "61 Avenue du Président Wilson, 94235 Cachan Cedex, France",
+			LegalMentionsFullAddress: []string{"Association Cr@ns - ENS Paris-Saclay",
+				"Notification de Contenus Illicites", "4, avenue des Sciences", "91190 Gif-sur-Yvette", "France"},
+			LegalMentionsEmail: "bureau[at]crans.org",
 		},
 		WebRTC: webrtc.Options{
-			Enabled:     true,
-			MaxPortUDP:  10005,
+			Enabled:     false,
+			MaxPortUDP:  11000,
 			MinPortUDP:  10000,
 			STUNServers: []string{"stun:stun.l.google.com:19302"},
 		},
@@ -122,7 +130,7 @@ func Load() (*Config, error) {
 
 	// If no credentials register, add demo account with password "demo"
 	if len(cfg.Auth.Basic.Credentials) < 1 {
-		cfg.Auth.Basic.Credentials["demo"] = "$2b$15$LRnG3eIHFlYIguTxZOLH7eHwbQC/vqjnLq6nDFiHSUDKIU.f5/1H6"
+		cfg.Auth.Basic.Credentials["demo"] = "$2b$10$xuU7XFwmRX2CMgdSaA8rM.4Y8.BtRNzhUedwN0G8tCegDRNUERTCS"
 	}
 
 	return cfg, nil

main.go

@@ -5,12 +5,14 @@
 package main
 
 import (
+	"gitlab.crans.org/nounous/ghostream/stream/ovenmediaengine"
 	"log"
 
+	"github.com/pkg/profile"
 	"gitlab.crans.org/nounous/ghostream/auth"
 	"gitlab.crans.org/nounous/ghostream/internal/config"
 	"gitlab.crans.org/nounous/ghostream/internal/monitoring"
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 	"gitlab.crans.org/nounous/ghostream/stream/forwarding"
 	"gitlab.crans.org/nounous/ghostream/stream/srt"
 	"gitlab.crans.org/nounous/ghostream/stream/telnet"
@@ -20,6 +22,9 @@ import (
 )
 
 func main() {
+	// TODO Don't always profile if not needed
+	defer profile.Start().Stop()
+
 	// Configure logger
 	log.SetFlags(log.Ldate | log.Ltime | log.Lshortfile)
 
@@ -38,24 +43,18 @@ func main() {
 		defer authBackend.Close()
 	}
 
-	// WebRTC session description channels
-	remoteSdpChan := make(chan struct {
-		StreamID          string
-		RemoteDescription webrtc.SessionDescription
-	})
-	localSdpChan := make(chan webrtc.SessionDescription)
-
 	// Init streams messaging
-	streams := make(map[string]*stream.Stream)
+	streams := messaging.New()
 
 	// Start routines
 	go transcoder.Init(streams, &cfg.Transcoder)
 	go forwarding.Serve(streams, cfg.Forwarding)
 	go monitoring.Serve(&cfg.Monitoring)
+	go ovenmediaengine.Serve(streams, &cfg.OME)
 	go srt.Serve(streams, authBackend, &cfg.Srt)
 	go telnet.Serve(streams, &cfg.Telnet)
-	go web.Serve(streams, remoteSdpChan, localSdpChan, &cfg.Web)
-	go webrtc.Serve(streams, remoteSdpChan, localSdpChan, &cfg.WebRTC)
+	go web.Serve(streams, &cfg.Web, &cfg.OME)
+	go webrtc.Serve(streams, &cfg.WebRTC)
 
 	// Wait for routines
 	select {}

messaging/quality.go

@@ -0,0 +1,89 @@
+// Package messaging defines a structure to communication between inputs and outputs
+package messaging
+
+import (
+	"sync"
+
+	"github.com/pion/webrtc/v3"
+)
+
+// Quality holds a specific stream quality.
+// It makes packages able to subscribe to an incoming stream.
+type Quality struct {
+	// Incoming data come from this channel
+	Broadcast chan<- []byte
+
+	// Incoming data will be outputted to all those outputs.
+	// Use a map to be able to delete an item.
+	outputs map[chan []byte]struct{}
+
+	// Mutex to lock outputs map
+	lockOutputs sync.Mutex
+
+	// WebRTC session descriptor exchange.
+	// When new client connects, a SDP arrives on WebRtcRemoteSdp,
+	// then webrtc package answers on WebRtcLocalSdp.
+	WebRtcLocalSdp  chan webrtc.SessionDescription
+	WebRtcRemoteSdp chan webrtc.SessionDescription
+}
+
+func newQuality() (q *Quality) {
+	q = &Quality{}
+	broadcast := make(chan []byte, 1024)
+	q.Broadcast = broadcast
+	q.outputs = make(map[chan []byte]struct{})
+	q.WebRtcLocalSdp = make(chan webrtc.SessionDescription, 1)
+	q.WebRtcRemoteSdp = make(chan webrtc.SessionDescription, 1)
+	go q.run(broadcast)
+	return q
+}
+
+func (q *Quality) run(broadcast <-chan []byte) {
+	for msg := range broadcast {
+		q.lockOutputs.Lock()
+		for output := range q.outputs {
+			select {
+			case output <- msg:
+			default:
+				// If full, do a ring buffer
+				// Check that output is not of size zero
+				if len(output) > 1 {
+					<-output
+				}
+			}
+		}
+		q.lockOutputs.Unlock()
+	}
+
+	// Incoming chan has been closed, close all outputs
+	q.lockOutputs.Lock()
+	for ch := range q.outputs {
+		delete(q.outputs, ch)
+		close(ch)
+	}
+	q.lockOutputs.Unlock()
+}
+
+// Close the incoming chan, this will also delete all outputs.
+func (q *Quality) Close() {
+	close(q.Broadcast)
+}
+
+// Register a new output on a stream.
+func (q *Quality) Register(output chan []byte) {
+	q.lockOutputs.Lock()
+	q.outputs[output] = struct{}{}
+	q.lockOutputs.Unlock()
+}
+
+// Unregister removes an output.
+func (q *Quality) Unregister(output chan []byte) {
+	// Make sure we did not already close this output
+	q.lockOutputs.Lock()
+	_, ok := q.outputs[output]
+	if ok {
+		delete(q.outputs, output)
+		close(output)
+	}
+	defer q.lockOutputs.Unlock()
+}

messaging/stream.go

@@ -0,0 +1,84 @@
+// Package messaging defines a structure to communication between inputs and outputs
+package messaging
+
+import (
+	"errors"
+	"sync"
+)
+
+// Stream makes packages able to subscribe to an incoming stream
+type Stream struct {
+	// Different qualities of this stream
+	qualities map[string]*Quality
+
+	// Mutex to lock outputs map
+	lockQualities sync.Mutex
+
+	// Count clients for statistics
+	nbClients int
+}
+
+func newStream() (s *Stream) {
+	s = &Stream{}
+	s.qualities = make(map[string]*Quality)
+	s.nbClients = 0
+	return s
+}
+
+// Close stream.
+func (s *Stream) Close() {
+	for quality := range s.qualities {
+		s.DeleteQuality(quality)
+	}
+}
+
+// CreateQuality creates a new quality associated with this stream.
+func (s *Stream) CreateQuality(name string) (quality *Quality, err error) {
+	// If quality already exist, fail
+	if _, ok := s.qualities[name]; ok {
+		return nil, errors.New("quality already exists")
+	}
+
+	s.lockQualities.Lock()
+	quality = newQuality()
+	s.qualities[name] = quality
+	s.lockQualities.Unlock()
+	return quality, nil
+}
+
+// DeleteQuality removes a stream quality.
+func (s *Stream) DeleteQuality(name string) {
+	// Make sure we did not already close this output
+	s.lockQualities.Lock()
+	if _, ok := s.qualities[name]; ok {
+		s.qualities[name].Close()
+		delete(s.qualities, name)
+	}
+	s.lockQualities.Unlock()
+}
+
+// GetQuality gets a specific stream quality.
+func (s *Stream) GetQuality(name string) (quality *Quality, err error) {
+	s.lockQualities.Lock()
+	quality, ok := s.qualities[name]
+	s.lockQualities.Unlock()
+	if !ok {
+		return nil, errors.New("quality does not exist")
+	}
+	return quality, nil
+}
+
+// ClientCount returns the number of clients.
+func (s *Stream) ClientCount() int {
+	return s.nbClients
+}
+
+// IncrementClientCount increments the number of clients.
+func (s *Stream) IncrementClientCount() {
+	s.nbClients++
+}
+
+// DecrementClientCount decrements the number of clients.
+func (s *Stream) DecrementClientCount() {
+	s.nbClients--
+}

messaging/streams.go

@@ -0,0 +1,98 @@
+// Package messaging defines a structure to communication between inputs and outputs
+package messaging
+
+import (
+	"errors"
+	"log"
+	"sync"
+)
+
+// Streams hold all application streams.
+type Streams struct {
+	// Associate each stream name to the stream
+	streams map[string]*Stream
+
+	// Mutex to lock streams
+	lockStreams sync.Mutex
+
+	// Subscribers get notified when a new stream is created
+	// Use a map to be able to delete a subscriber
+	eventSubscribers map[chan string]struct{}
+
+	// Mutex to lock eventSubscribers
+	lockSubscribers sync.Mutex
+}
+
+// New creates a new stream list.
+func New() (l *Streams) {
+	l = &Streams{}
+	l.streams = make(map[string]*Stream)
+	l.eventSubscribers = make(map[chan string]struct{})
+	return l
+}
+
+// Subscribe to get notified on new stream.
+func (l *Streams) Subscribe(output chan string) {
+	l.lockSubscribers.Lock()
+	l.eventSubscribers[output] = struct{}{}
+	l.lockSubscribers.Unlock()
+}
+
+// Unsubscribe to no longer get notified on new stream.
+func (l *Streams) Unsubscribe(output chan string) {
+	// Make sure we did not already delete this subscriber
+	l.lockSubscribers.Lock()
+	if _, ok := l.eventSubscribers[output]; ok {
+		delete(l.eventSubscribers, output)
+	}
+	l.lockSubscribers.Unlock()
+}
+
+// Create a new stream.
+func (l *Streams) Create(name string) (s *Stream, err error) {
+	// If stream already exist, fail
+	if _, ok := l.streams[name]; ok {
+		return nil, errors.New("stream already exists")
+	}
+
+	// Create stream
+	s = newStream()
+	l.lockStreams.Lock()
+	l.streams[name] = s
+	l.lockStreams.Unlock()
+
+	// Notify
+	l.lockSubscribers.Lock()
+	for sub := range l.eventSubscribers {
+		select {
+		case sub <- name:
+		default:
+			log.Printf("Failed to announce stream '%s' to subscriber", name)
+		}
+	}
+	l.lockSubscribers.Unlock()
+	return s, nil
+}
+
+// Get a stream.
+func (l *Streams) Get(name string) (s *Stream, err error) {
+	// If stream does exist, return it
+	l.lockStreams.Lock()
+	s, ok := l.streams[name]
+	l.lockStreams.Unlock()
+	if !ok {
+		return nil, errors.New("stream does not exist")
+	}
+	return s, nil
+}
+
+// Delete a stream.
+func (l *Streams) Delete(name string) {
+	// Make sure we did not already delete this stream
+	l.lockStreams.Lock()
+	if _, ok := l.streams[name]; ok {
+		l.streams[name].Close()
+		delete(l.streams, name)
+	}
+	l.lockStreams.Unlock()
+}

messaging/streams_test.go

@@ -0,0 +1,55 @@
+package messaging
+
+import "testing"
+
+func TestWithOneStream(t *testing.T) {
+	streams := New()
+
+	// Subscribe to new streams
+	event := make(chan string, 8)
+	streams.Subscribe(event)
+
+	// Create a stream
+	stream, err := streams.Create("demo")
+	if err != nil {
+		t.Errorf("Failed to create stream")
+	}
+
+	// Check that we receive the creation event
+	e := <-event
+	if e != "demo" {
+		t.Errorf("Message has wrong content: %s != demo", e)
+	}
+
+	// Create a quality
+	quality, err := stream.CreateQuality("source")
+	if err != nil {
+		t.Errorf("Failed to create quality")
+	}
+
+	// Register one output
+	output := make(chan []byte, 64)
+	quality.Register(output)
+	stream.IncrementClientCount()
+
+	// Try to pass one message
+	quality.Broadcast <- []byte("hello world")
+	msg := <-output
+	if string(msg) != "hello world" {
+		t.Errorf("Message has wrong content: %s != hello world", msg)
+	}
+
+	// Check client count
+	if count := stream.ClientCount(); count != 1 {
+		t.Errorf("Client counter returned %d, expected 1", count)
+	}
+
+	// Unregister
+	quality.Unregister(output)
+	stream.DecrementClientCount()
+
+	// Check client count
+	if count := stream.ClientCount(); count != 0 {
+		t.Errorf("Client counter returned %d, expected 0", count)
+	}
+}

stream/forwarding/forwarding.go

@@ -3,11 +3,13 @@ package forwarding
 
 import (
 	"bufio"
+	"fmt"
 	"log"
 	"os/exec"
+	"strings"
 	"time"
 
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 // Options to configure the stream forwarding.
@@ -15,43 +17,66 @@ import (
 type Options map[string][]string
 
 // Serve handles incoming packets from SRT and forward them to other external services
-func Serve(streams map[string]*stream.Stream, cfg Options) {
+func Serve(streams *messaging.Streams, cfg Options) {
 	if len(cfg) < 1 {
 		// No forwarding, ignore
 		return
 	}
 
+	// Subscribe to new stream event
+	event := make(chan string, 8)
+	streams.Subscribe(event)
 	log.Printf("Stream forwarding initialized")
-	for {
-		for name, st := range streams {
-			fwdCfg, ok := cfg[name]
-			if !ok {
-				// Not configured
-				continue
-			}
 
-			// Start forwarding
-			log.Printf("Starting forwarding for '%s'", name)
-			go forward(st, fwdCfg)
+	// For each new stream
+	for name := range event {
+		streamCfg, ok := cfg[name]
+		if !ok {
+			// Not configured
+			continue
 		}
 
-		// Regulary pull stream list,
-		// it may be better to tweak the messaging system
-		// to get an event on a new stream.
-		time.Sleep(time.Second)
+		// Get stream
+		stream, err := streams.Get(name)
+		if err != nil {
+			log.Printf("Failed to get stream '%s'", name)
+			return
+		}
+
+		// Get specific quality
+		// FIXME: make it possible to forward other qualities
+		qualityName := "source"
+		quality, err := stream.GetQuality(qualityName)
+		if err != nil {
+			log.Printf("Failed to get quality '%s'", qualityName)
+		}
+
+		// Start forwarding
+		log.Printf("Starting forwarding for '%s' quality '%s'", name, qualityName)
+		go forward(name, quality, streamCfg)
 	}
 }
 
 // Start a FFMPEG instance and redirect stream output to forwarded streams
-func forward(st *stream.Stream, fwdCfg []string) {
+func forward(streamName string, q *messaging.Quality, fwdCfg []string) {
 	output := make(chan []byte, 1024)
-	st.Register(output)
+	q.Register(output)
 
 	// Launch FFMPEG instance
-	params := []string{"-hide_banner", "-loglevel", "error", "-re", "-i", "pipe:0"}
+	params := []string{"-hide_banner", "-loglevel", "error", "-i", "pipe:0"}
 	for _, url := range fwdCfg {
-		params = append(params, "-f", "flv", "-preset", "ultrafast", "-tune", "zerolatency",
-			"-c", "copy", url)
+		// If the url should be date-formatted, replace special characters with the current time information
+		now := time.Now()
+		formattedURL := strings.ReplaceAll(url, "%Y", fmt.Sprintf("%04d", now.Year()))
+		formattedURL = strings.ReplaceAll(formattedURL, "%m", fmt.Sprintf("%02d", now.Month()))
+		formattedURL = strings.ReplaceAll(formattedURL, "%d", fmt.Sprintf("%02d", now.Day()))
+		formattedURL = strings.ReplaceAll(formattedURL, "%H", fmt.Sprintf("%02d", now.Hour()))
+		formattedURL = strings.ReplaceAll(formattedURL, "%M", fmt.Sprintf("%02d", now.Minute()))
+		formattedURL = strings.ReplaceAll(formattedURL, "%S", fmt.Sprintf("%02d", now.Second()))
+		formattedURL = strings.ReplaceAll(formattedURL, "%name", streamName)
+
+		params = append(params, "-f", "flv",
+			"-c:v", "copy", "-c:a", "aac", "-b:a", "160k", "-ar", "44100", formattedURL)
 	}
 	ffmpeg := exec.Command("ffmpeg", params...)
 
@@ -77,14 +102,14 @@ func forward(st *stream.Stream, fwdCfg []string) {
 		_ = input.Close()
 		_ = errOutput.Close()
 		_ = ffmpeg.Process.Kill()
-		st.Unregister(output)
+		q.Unregister(output)
 	}()
 
 	// Log standard error output
 	go func() {
 		scanner := bufio.NewScanner(errOutput)
 		for scanner.Scan() {
-			log.Printf("[FORWARDING FFMPEG] %s", scanner.Text())
+			log.Printf("[FORWARDING FFMPEG %s] %s", streamName, scanner.Text())
 		}
 	}()
 

stream/forwarding/forwarding_test.go

@@ -6,7 +6,7 @@ import (
 	"testing"
 	"time"
 
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 	"gitlab.crans.org/nounous/ghostream/stream/srt"
 )
 
@@ -35,7 +35,7 @@ func TestForwardStream(t *testing.T) {
 	cfg["demo"] = []string{"rtmp://127.0.0.1:1936/live/app"}
 
 	// Register forwarding stream list
-	streams := make(map[string]*stream.Stream)
+	streams := messaging.New()
 	go Serve(streams, cfg)
 
 	// Serve SRT Server without authentification backend

stream/messaging.go

@@ -1,99 +0,0 @@
-// Package stream defines a structure to communication between inputs and outputs
-package stream
-
-import (
-	"sync"
-)
-
-// Stream makes packages able to subscribe to an incoming stream
-type Stream struct {
-	// Incoming data come from this channel
-	Broadcast chan<- []byte
-
-	// Use a map to be able to delete an item
-	outputs map[chan []byte]struct{}
-
-	// Count clients for statistics
-	nbClients int
-
-	// Mutex to lock outputs map
-	lock sync.Mutex
-}
-
-// New creates a new stream.
-func New() *Stream {
-	s := &Stream{}
-	broadcast := make(chan []byte, 1024)
-	s.Broadcast = broadcast
-	s.outputs = make(map[chan []byte]struct{})
-	s.nbClients = 0
-	go s.run(broadcast)
-	return s
-}
-
-func (s *Stream) run(broadcast <-chan []byte) {
-	for msg := range broadcast {
-		s.lock.Lock()
-		for output := range s.outputs {
-			select {
-			case output <- msg:
-			default:
-				// If full, do a ring buffer
-				// Check that output is not of size zero
-				if len(output) > 1 {
-					<-output
-				}
-			}
-		}
-		s.lock.Unlock()
-	}
-
-	// Incoming chan has been closed, close all outputs
-	s.lock.Lock()
-	for ch := range s.outputs {
-		delete(s.outputs, ch)
-		close(ch)
-	}
-	s.lock.Unlock()
-}
-
-// Close the incoming chan, this will also delete all outputs
-func (s *Stream) Close() {
-	close(s.Broadcast)
-}
-
-// Register a new output on a stream.
-func (s *Stream) Register(output chan []byte) {
-	s.lock.Lock()
-	defer s.lock.Unlock()
-	s.outputs[output] = struct{}{}
-}
-
-// Unregister removes an output.
-// If hidden in true, then do not count this client.
-func (s *Stream) Unregister(output chan []byte) {
-	s.lock.Lock()
-	defer s.lock.Unlock()
-
-	// Make sure we did not already close this output
-	_, ok := s.outputs[output]
-	if ok {
-		delete(s.outputs, output)
-		close(output)
-	}
-}
-
-// ClientCount returns the number of clients
-func (s *Stream) ClientCount() int {
-	return s.nbClients
-}
-
-// IncrementClientCount increments the number of clients
-func (s *Stream) IncrementClientCount() {
-	s.nbClients++
-}
-
-// DecrementClientCount decrements the number of clients
-func (s *Stream) DecrementClientCount() {
-	s.nbClients--
-}

stream/messaging_test.go

@@ -1,42 +0,0 @@
-package stream
-
-import (
-	"testing"
-)
-
-func TestWithoutOutputs(t *testing.T) {
-	stream := New()
-	defer stream.Close()
-	stream.Broadcast <- []byte("hello world")
-}
-
-func TestWithOneOutput(t *testing.T) {
-	stream := New()
-	defer stream.Close()
-
-	// Register one output
-	output := make(chan []byte, 64)
-	stream.Register(output)
-	stream.IncrementClientCount()
-
-	// Try to pass one message
-	stream.Broadcast <- []byte("hello world")
-	msg := <-output
-	if string(msg) != "hello world" {
-		t.Errorf("Message has wrong content: %s != hello world", msg)
-	}
-
-	// Check client count
-	if count := stream.ClientCount(); count != 1 {
-		t.Errorf("Client counter returned %d, expected 1", count)
-	}
-
-	// Unregister
-	stream.Unregister(output)
-	stream.DecrementClientCount()
-
-	// Check client count
-	if count := stream.ClientCount(); count != 0 {
-		t.Errorf("Client counter returned %d, expected 0", count)
-	}
-}

stream/ovenmediaengine/ovenmediaengine.go

@@ -0,0 +1,112 @@
+// Package ovenmediaengine provides the forwarding to an ovenmediaengine server to handle the web client
+package ovenmediaengine
+
+import (
+	"bufio"
+	"fmt"
+	"log"
+	"os/exec"
+
+	"gitlab.crans.org/nounous/ghostream/messaging"
+)
+
+// Options holds ovenmediaengine package configuration
+type Options struct {
+	Enabled bool
+	URL     string
+	App     string
+}
+
+var (
+	cfg *Options
+)
+
+// Serve handles incoming packets from SRT and forward them to OME
+func Serve(streams *messaging.Streams, c *Options) {
+	cfg = c
+
+	if !c.Enabled {
+		return
+	}
+
+	// Subscribe to new stream event
+	event := make(chan string, 8)
+	streams.Subscribe(event)
+	log.Printf("Stream forwarding to OME initialized")
+
+	// For each new stream
+	for name := range event {
+		// Get stream
+		stream, err := streams.Get(name)
+		if err != nil {
+			log.Printf("Failed to get stream '%s'", name)
+			return
+		}
+
+		qualityName := "source"
+		quality, err := stream.GetQuality(qualityName)
+		if err != nil {
+			log.Printf("Failed to get quality '%s'", qualityName)
+		}
+
+		// Start forwarding
+		log.Printf("Starting forwarding to OME for '%s'", name)
+		go forward(name, quality)
+	}
+}
+
+// Start a FFMPEG instance and redirect stream output to OME
+func forward(name string, q *messaging.Quality) {
+	output := make(chan []byte, 1024)
+	q.Register(output)
+
+	// TODO When a new OME version got released with SRT support, directly forward SRT packets, without using unwanted RTMP transport
+	// Launch FFMPEG instance
+	params := []string{"-hide_banner", "-loglevel", "error", "-i", "pipe:0", "-f", "flv", "-c:v", "copy",
+		"-c:a", "aac", "-b:a", "160k", "-ar", "44100",
+		fmt.Sprintf("rtmp://%s/%s/%s", cfg.URL, cfg.App, name)}
+	ffmpeg := exec.Command("ffmpeg", params...)
+
+	// Open pipes
+	input, err := ffmpeg.StdinPipe()
+	if err != nil {
+		log.Printf("Error while opening forwarding ffmpeg input pipe: %s", err)
+		return
+	}
+	errOutput, err := ffmpeg.StderrPipe()
+	if err != nil {
+		log.Printf("Error while opening forwarding ffmpeg output pipe: %s", err)
+		return
+	}
+
+	// Start FFMpeg
+	if err := ffmpeg.Start(); err != nil {
+		log.Printf("Error while starting forwarding ffmpeg instance: %s", err)
+	}
+
+	// Kill FFMPEG when stream is ended
+	defer func() {
+		_ = input.Close()
+		_ = errOutput.Close()
+		_ = ffmpeg.Process.Kill()
+		q.Unregister(output)
+	}()
+
+	// Log standard error output
+	go func() {
+		scanner := bufio.NewScanner(errOutput)
+		for scanner.Scan() {
+			log.Printf("[FORWARDING OME FFMPEG %s] %s", name, scanner.Text())
+		}
+	}()
+
+	// Read stream output and redirect immediately to ffmpeg
+	for data := range output {
+		_, err := input.Write(data)
+
+		if err != nil {
+			log.Printf("Error while writing to forwarded stream: %s", err)
+			break
+		}
+	}
+}

stream/srt/handler.go

@@ -5,21 +5,26 @@ import (
 	"log"
 
 	"github.com/haivision/srtgo"
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
-func handleStreamer(socket *srtgo.SrtSocket, streams map[string]*stream.Stream, name string) {
-	// Check stream does not exist
-	if _, ok := streams[name]; ok {
-		log.Print("Stream already exists, refusing new streamer")
+func handleStreamer(socket *srtgo.SrtSocket, streams *messaging.Streams, name string) {
+	// Create stream
+	stream, err := streams.Create(name)
+	if err != nil {
+		log.Printf("Error on stream creating: %s", err)
 		socket.Close()
 		return
 	}
 
-	// Create stream
-	log.Printf("New SRT streamer for stream %s", name)
-	st := stream.New()
-	streams[name] = st
+	// Create source quality
+	q, err := stream.CreateQuality("source")
+	if err != nil {
+		log.Printf("Error on quality creating: %s", err)
+		socket.Close()
+		return
+	}
+	log.Printf("New SRT streamer for stream '%s' quality 'source'", name)
 
 	// Read RTP packets forever and send them to the WebRTC Client
 	for {
@@ -42,29 +47,38 @@ func handleStreamer(socket *srtgo.SrtSocket, streams map[string]*stream.Stream,
 
 		// Send raw data to other streams
 		buff = buff[:n]
-		st.Broadcast <- buff
+		q.Broadcast <- buff
 	}
 
 	// Close stream
-	st.Close()
+	streams.Delete(name)
 	socket.Close()
-	delete(streams, name)
 }
 
-func handleViewer(s *srtgo.SrtSocket, streams map[string]*stream.Stream, name string) {
-	log.Printf("New SRT viewer for stream %s", name)
-
+func handleViewer(socket *srtgo.SrtSocket, streams *messaging.Streams, name string) {
 	// Get requested stream
-	st, ok := streams[name]
-	if !ok {
-		log.Println("Stream does not exist, refusing new viewer")
+	stream, err := streams.Get(name)
+	if err != nil {
+		log.Printf("Failed to get stream: %s", err)
+		socket.Close()
 		return
 	}
 
+	// Get requested quality
+	// FIXME: make qualities available
+	qualityName := "source"
+	q, err := stream.GetQuality(qualityName)
+	if err != nil {
+		log.Printf("Failed to get quality: %s", err)
+		socket.Close()
+		return
+	}
+	log.Printf("New SRT viewer for stream %s quality %s", name, qualityName)
+
 	// Register new output
 	c := make(chan []byte, 1024)
-	st.Register(c)
-	st.IncrementClientCount()
+	q.Register(c)
+	stream.IncrementClientCount()
 
 	// Receive data and send them
 	for data := range c {
@@ -74,7 +88,7 @@ func handleViewer(s *srtgo.SrtSocket, streams map[string]*stream.Stream, name st
 		}
 
 		// Send data
-		_, err := s.Write(data, 1000)
+		_, err := socket.Write(data, 1000)
 		if err != nil {
 			log.Printf("Remove SRT viewer because of sending error, %s", err)
 			break
@@ -82,7 +96,7 @@ func handleViewer(s *srtgo.SrtSocket, streams map[string]*stream.Stream, name st
 	}
 
 	// Close output
-	st.Unregister(c)
-	st.DecrementClientCount()
-	s.Close()
+	q.Unregister(c)
+	stream.DecrementClientCount()
+	socket.Close()
 }

stream/srt/srt.go

@@ -1,9 +1,6 @@
 // Package srt serves a SRT server
 package srt
 
-// #include <srt/srt.h>
-import "C"
-
 import (
 	"log"
 	"net"
@@ -12,7 +9,7 @@ import (
 
 	"github.com/haivision/srtgo"
 	"gitlab.crans.org/nounous/ghostream/auth"
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 // Options holds web package configuration
@@ -39,7 +36,7 @@ func splitHostPort(hostport string) (string, uint16, error) {
 }
 
 // Serve SRT server
-func Serve(streams map[string]*stream.Stream, authBackend auth.Backend, cfg *Options) {
+func Serve(streams *messaging.Streams, authBackend auth.Backend, cfg *Options) {
 	if !cfg.Enabled {
 		// SRT is not enabled, ignore
 		return
@@ -62,7 +59,7 @@ func Serve(streams map[string]*stream.Stream, authBackend auth.Backend, cfg *Opt
 
 	for {
 		// Wait for new connection
-		s, err := sck.Accept()
+		s, _, err := sck.Accept()
 		if err != nil {
 			// Something wrong happened
 			log.Println(err)
@@ -73,7 +70,7 @@ func Serve(streams map[string]*stream.Stream, authBackend auth.Backend, cfg *Opt
 		// Without this, the SRT buffer might get full before reading it
 
 		// streamid can be "name:password" for streamer or "name" for viewer
-		streamID, err := s.GetSockOptString(C.SRTO_STREAMID)
+		streamID, err := s.GetSockOptString(srtgo.SRTO_STREAMID)
 		if err != nil {
 			log.Print("Failed to get socket streamid")
 			continue
@@ -82,20 +79,22 @@ func Serve(streams map[string]*stream.Stream, authBackend auth.Backend, cfg *Opt
 
 		if len(split) > 1 {
 			// password was provided so it is a streamer
-			name, password := split[0], split[1]
+			name, password := strings.ToLower(split[0]), split[1]
 			if authBackend != nil {
 				// check password
-				if ok, err := authBackend.Login(name, password); !ok || err != nil {
+				ok, username, err := authBackend.Login(name, password)
+				if !ok || err != nil {
 					log.Printf("Failed to authenticate for stream %s", name)
 					s.Close()
 					continue
 				}
+				name = username
 			}
 
 			go handleStreamer(s, streams, name)
 		} else {
 			// password was not provided so it is a viewer
-			name := split[0]
+			name := strings.ToLower(split[0])
 
 			// Send stream
 			go handleViewer(s, streams, name)

stream/srt/srt_test.go

@@ -6,7 +6,7 @@ import (
 	"testing"
 	"time"
 
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 // TestSplitHostPort Try to split a host like 127.0.0.1:1234 in host, port (127.0.0.1, 1234à
@@ -58,7 +58,7 @@ func TestServeSRT(t *testing.T) {
 	}
 
 	// Init streams messaging and SRT server
-	streams := make(map[string]*stream.Stream)
+	streams := messaging.New()
 	go Serve(streams, nil, &Options{Enabled: true, ListenAddress: ":9711", MaxClients: 2})
 
 	ffmpeg := exec.Command("ffmpeg", "-hide_banner", "-loglevel", "error",

stream/telnet/telnet.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 	"time"
 
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 // Options holds telnet package configuration
@@ -17,7 +17,7 @@ type Options struct {
 }
 
 // Serve Telnet server
-func Serve(streams map[string]*stream.Stream, cfg *Options) {
+func Serve(streams *messaging.Streams, cfg *Options) {
 	if !cfg.Enabled {
 		// Telnet is not enabled, ignore
 		return
@@ -32,17 +32,17 @@ func Serve(streams map[string]*stream.Stream, cfg *Options) {
 
 	// Handle each new client
 	for {
-		s, err := listener.Accept()
+		socket, err := listener.Accept()
 		if err != nil {
-			log.Printf("Error while accepting TCP socket: %s", s)
+			log.Printf("Error while accepting TCP socket: %s", err)
 			continue
 		}
 
-		go handleViewer(s, streams, cfg)
+		go handleViewer(socket, streams, cfg)
 	}
 }
 
-func handleViewer(s net.Conn, streams map[string]*stream.Stream, cfg *Options) {
+func handleViewer(s net.Conn, streams *messaging.Streams, cfg *Options) {
 	// Prompt user about stream name
 	if _, err := s.Write([]byte("[GHOSTREAM]\nEnter stream name: ")); err != nil {
 		log.Printf("Error while writing to TCP socket: %s", err)
@@ -56,7 +56,7 @@ func handleViewer(s net.Conn, streams map[string]*stream.Stream, cfg *Options) {
 		s.Close()
 		return
 	}
-	name := strings.TrimSpace(string(buff[:n])) + "@text"
+	name := strings.TrimSpace(string(buff[:n]))
 	if len(name) < 1 {
 		// Too short, exit
 		s.Close()
@@ -67,9 +67,9 @@ func handleViewer(s net.Conn, streams map[string]*stream.Stream, cfg *Options) {
 	time.Sleep(time.Second)
 
 	// Get requested stream
-	st, ok := streams[name]
-	if !ok {
-		log.Println("Stream does not exist, kicking new Telnet viewer")
+	stream, err := streams.Get(name)
+	if err != nil {
+		log.Printf("Kicking new Telnet viewer: %s", err)
 		if _, err := s.Write([]byte("This stream is inactive.\n")); err != nil {
 			log.Printf("Error while writing to TCP socket: %s", err)
 		}
@@ -77,11 +77,23 @@ func handleViewer(s net.Conn, streams map[string]*stream.Stream, cfg *Options) {
 		return
 	}
 
+	// Get requested quality
+	qualityName := "text"
+	q, err := stream.GetQuality(qualityName)
+	if err != nil {
+		log.Printf("Kicking new Telnet viewer: %s", err)
+		if _, err := s.Write([]byte("This stream is not converted to text.\n")); err != nil {
+			log.Printf("Error while writing to TCP socket: %s", err)
+		}
+		s.Close()
+		return
+	}
+	log.Printf("New Telnet viewer for stream %s quality %s", name, qualityName)
+
 	// Register new client
-	log.Printf("New Telnet viewer for stream '%s'", name)
 	c := make(chan []byte, 128)
-	st.Register(c)
-	st.IncrementClientCount()
+	q.Register(c)
+	stream.IncrementClientCount()
 
 	// Hide terminal cursor
 	if _, err = s.Write([]byte("\033[?25l")); err != nil {
@@ -106,7 +118,7 @@ func handleViewer(s net.Conn, streams map[string]*stream.Stream, cfg *Options) {
 	}
 
 	// Close output
-	st.Unregister(c)
-	st.DecrementClientCount()
+	q.Unregister(c)
+	stream.DecrementClientCount()
 	s.Close()
 }

stream/telnet/telnet_test.go

@@ -3,13 +3,13 @@ package telnet
 import (
 	"testing"
 
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 // TestTelnetOutput creates a TCP client that connects to the server and get one image.
 func TestTelnetOutput(t *testing.T) {
 	// Try to start Telnet server while it is disabled
-	streams := make(map[string]*stream.Stream)
+	streams := messaging.New()
 	go Serve(streams, &Options{Enabled: false})
 
 	// FIXME test connect

stream/webrtc/ingest.go

@@ -2,114 +2,88 @@
 package webrtc
 
 import (
-	"github.com/3d0c/gmf"
+	"bufio"
+	"fmt"
+	"log"
+	"math/rand"
+	"net"
+	"os/exec"
+
 	"github.com/pion/rtp"
 	"github.com/pion/webrtc/v3"
-	"gitlab.crans.org/nounous/ghostream/stream"
-	"log"
-	"net"
-	"strings"
-	"time"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
-var (
-	activeStream map[string]struct{}
-)
-
-func autoIngest(streams map[string]*stream.Stream) {
-	// Regulary check existing streams
-	activeStream = make(map[string]struct{})
-	for {
-		for name, st := range streams {
-			if strings.Contains(name, "@") {
-				// Not a source stream, pass
-				continue
-			}
-
-			if _, ok := activeStream[name]; ok {
-				// Stream is already ingested
-				continue
-			}
-
-			// Start ingestion
-			log.Printf("Starting webrtc for '%s'", name)
-			// FIXME Ensure that the audio stream exist, but that's poop code
-			time.Sleep(time.Second)
-			go ingest(name, st, streams[name+"@audio"])
-		}
-
-		// Regulary pull stream list,
-		// it may be better to tweak the messaging system
-		// to get an event on a new stream.
-		time.Sleep(time.Second)
-	}
-}
-
-func ingest(name string, input *stream.Stream, audio *stream.Stream) {
+func ingest(name string, q *messaging.Quality) {
 	// Register to get stream
 	videoInput := make(chan []byte, 1024)
-	input.Register(videoInput)
-	audioInput := make(chan []byte, 1024)
-	audio.Register(audioInput)
-	activeStream[name] = struct{}{}
+	q.Register(videoInput)
 
-	inputCtx := gmf.NewCtx()
-	avioInputCtx, _ := gmf.NewAVIOContext(inputCtx, &gmf.AVIOHandlers{ReadPacket: func() ([]byte, int) {
-		data := <-audioInput
-		return data, len(data)
-	}})
-	log.Println("Open input")
-	inputCtx.SetPb(avioInputCtx).OpenInput("")
-	log.Println("Opened")
-	defer inputCtx.CloseInput()
-	defer avioInputCtx.Release()
+	// FIXME Mux into RTP without having multiple UDP listeners
+	firstPort := int(rand.Int31n(63535)) + 2000
 
-	if audioTracks[name] == nil {
-		audioTracks[name] = make([]*webrtc.Track, 0)
+	// Open UDP listeners for RTP Packets
+	audioListener, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: firstPort})
+	if err != nil {
+		log.Printf("Faited to open UDP listener %s", err)
+		return
+	}
+	videoListener, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: firstPort + 1})
+	if err != nil {
+		log.Printf("Faited to open UDP listener %s", err)
+		return
 	}
 
-	udpListener, _ := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 1234})
-
-	outputCtx, _ := gmf.NewOutputCtxWithFormatName("rtp://127.0.0.1:1234", "rtp")
-	avioOutputCtx, _ := gmf.NewAVIOContext(outputCtx, &gmf.AVIOHandlers{WritePacket: func(data []byte) int {
-		n := len(data)
-		log.Printf("Read %d bytes", n)
-
-		return n
-	}})
-	// FIXME DON'T RAN AN UDP LISTENER, PLIZ GET DIRECTLY UDP PACKETS, WHY IS IT SO COMPLICATED????
-	// outputCtx.SetPb(avioOutputCtx)
-	defer outputCtx.CloseOutput()
-	defer avioOutputCtx.Release()
-
-	log.Printf("%d streams", inputCtx.StreamsCnt())
-
-	for i := 0; i < inputCtx.StreamsCnt(); i++ {
-		srcStream, err := inputCtx.GetStream(i)
-		if err != nil {
-			log.Println("GetStream error")
-		}
-
-		outputCtx.AddStreamWithCodeCtx(srcStream.CodecCtx())
-	}
-	outputCtx.Dump()
-
-	if err := outputCtx.WriteHeader(); err != nil {
-		log.Printf("Unable to write RTP header: %s", err)
+	// Start ffmpag to convert videoInput to video and audio UDP
+	ffmpeg, err := startFFmpeg(videoInput, firstPort)
+	if err != nil {
+		log.Printf("Error while starting ffmpeg: %s", err)
+		return
 	}
 
-	// Receive audio data
+	// Receive video
 	go func() {
-		buff := make([]byte, 1500)
+		inboundRTPPacket := make([]byte, 1500) // UDP MTU
 		for {
-			n, _ := udpListener.Read(buff)
-
-			if n == 0 {
-				return
+			n, _, err := videoListener.ReadFromUDP(inboundRTPPacket)
+			if err != nil {
+				log.Printf("Failed to read from UDP: %s", err)
+				break
+			}
+			packet := &rtp.Packet{}
+			if err := packet.Unmarshal(inboundRTPPacket[:n]); err != nil {
+				log.Printf("Failed to unmarshal RTP srtPacket: %s", err)
+				continue
 			}
 
+			if videoTracks[name] == nil {
+				videoTracks[name] = make([]*webrtc.Track, 0)
+			}
+
+			// Write RTP srtPacket to all video tracks
+			// Adapt payload and SSRC to match destination
+			for _, videoTrack := range videoTracks[name] {
+				packet.Header.PayloadType = videoTrack.PayloadType()
+				packet.Header.SSRC = videoTrack.SSRC()
+				if writeErr := videoTrack.WriteRTP(packet); writeErr != nil {
+					log.Printf("Failed to write to video track: %s", err)
+					continue
+				}
+			}
+		}
+	}()
+
+	// Receive audio
+	go func() {
+		inboundRTPPacket := make([]byte, 1500) // UDP MTU
+		for {
+			n, _, err := audioListener.ReadFromUDP(inboundRTPPacket)
+			if err != nil {
+				log.Printf("Failed to read from UDP: %s", err)
+				break
+			}
 			packet := &rtp.Packet{}
-			if err := packet.Unmarshal(buff[:n]); err != nil {
+			if err := packet.Unmarshal(inboundRTPPacket[:n]); err != nil {
 				log.Printf("Failed to unmarshal RTP srtPacket: %s", err)
 				continue
 			}
@@ -124,136 +98,36 @@ func ingest(name string, input *stream.Stream, audio *stream.Stream) {
 				packet.Header.PayloadType = audioTrack.PayloadType()
 				packet.Header.SSRC = audioTrack.SSRC()
 				if writeErr := audioTrack.WriteRTP(packet); writeErr != nil {
-					log.Printf("Failed to write to audio track: %s", writeErr)
+					log.Printf("Failed to write to audio track: %s", err)
 					continue
 				}
 			}
 		}
 	}()
 
-	first := false
-	for packet := range inputCtx.GetNewPackets() {
-		if first { //if read from rtsp ,the first packets is wrong.
-			if err := outputCtx.WritePacketNoBuffer(packet); err != nil {
-				log.Printf("Error while writing packet: %s", err)
-			}
-		}
-
-		first = true
-
-		packet.Free()
+	// Wait for stopped ffmpeg
+	if err = ffmpeg.Wait(); err != nil {
+		log.Printf("Faited to wait for ffmpeg: %s", err)
 	}
 
-	select {}
-
-	// TODO Register to all substreams and make RTP packets. Don't transcode in this package.
-
-	/*	// Open a UDP Listener for RTP Packets on port 5004
-		videoListener, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 5004})
-		if err != nil {
-			log.Printf("Faited to open UDP listener %s", err)
-			return
-		}
-		audioListener, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: 5005})
-		if err != nil {
-			log.Printf("Faited to open UDP listener %s", err)
-			return
-		}
-
-		// Start ffmpag to convert videoInput to video and audio UDP
-		ffmpeg, err := startFFmpeg(videoInput)
-		if err != nil {
-			log.Printf("Error while starting ffmpeg: %s", err)
-			return
-		}
-
-		// Receive video
-		go func() {
-			inboundRTPPacket := make([]byte, 1500) // UDP MTU
-			for {
-				n, _, err := videoListener.ReadFromUDP(inboundRTPPacket)
-				if err != nil {
-					log.Printf("Failed to read from UDP: %s", err)
-					break
-				}
-				packet := &rtp.Packet{}
-				if err := packet.Unmarshal(inboundRTPPacket[:n]); err != nil {
-					log.Printf("Failed to unmarshal RTP srtPacket: %s", err)
-					continue
-				}
-
-				if videoTracks[name] == nil {
-					videoTracks[name] = make([]*webrtc.Track, 0)
-				}
-
-				// Write RTP srtPacket to all video tracks
-				// Adapt payload and SSRC to match destination
-				for _, videoTrack := range videoTracks[name] {
-					packet.Header.PayloadType = videoTrack.PayloadType()
-					packet.Header.SSRC = videoTrack.SSRC()
-					if writeErr := videoTrack.WriteRTP(packet); writeErr != nil {
-						log.Printf("Failed to write to video track: %s", err)
-						continue
-					}
-				}
-			}
-		}()
-
-		// Receive audio
-		go func() {
-			inboundRTPPacket := make([]byte, 1500) // UDP MTU
-			for {
-				n, _, err := audioListener.ReadFromUDP(inboundRTPPacket)
-				if err != nil {
-					log.Printf("Failed to read from UDP: %s", err)
-					break
-				}
-				packet := &rtp.Packet{}
-				if err := packet.Unmarshal(inboundRTPPacket[:n]); err != nil {
-					log.Printf("Failed to unmarshal RTP srtPacket: %s", err)
-					continue
-				}
-
-				if audioTracks[name] == nil {
-					audioTracks[name] = make([]*webrtc.Track, 0)
-				}
-
-				// Write RTP srtPacket to all audio tracks
-				// Adapt payload and SSRC to match destination
-				for _, audioTrack := range audioTracks[name] {
-					packet.Header.PayloadType = audioTrack.PayloadType()
-					packet.Header.SSRC = audioTrack.SSRC()
-					if writeErr := audioTrack.WriteRTP(packet); writeErr != nil {
-						log.Printf("Failed to write to audio track: %s", err)
-						continue
-					}
-				}
-			}
-		}()
-
-		// Wait for stopped ffmpeg
-		if err = ffmpeg.Wait(); err != nil {
-			log.Printf("Faited to wait for ffmpeg: %s", err)
-		}
-
-		// Close UDP listeners
-		if err = videoListener.Close(); err != nil {
-			log.Printf("Faited to close UDP listener: %s", err)
-		}
-		if err = audioListener.Close(); err != nil {
-			log.Printf("Faited to close UDP listener: %s", err)
-		}*/
-	delete(activeStream, name)
+	// Close UDP listeners
+	if err = videoListener.Close(); err != nil {
+		log.Printf("Faited to close UDP listener: %s", err)
+	}
+	if err = audioListener.Close(); err != nil {
+		log.Printf("Faited to close UDP listener: %s", err)
+	}
+	q.Unregister(videoInput)
 }
 
-/* func startFFmpeg(in <-chan []byte) (ffmpeg *exec.Cmd, err error) {
+func startFFmpeg(in <-chan []byte, listeningPort int) (ffmpeg *exec.Cmd, err error) {
 	ffmpegArgs := []string{"-hide_banner", "-loglevel", "error", "-i", "pipe:0",
-		"-an", "-vcodec", "libvpx", "-crf", "10", "-cpu-used", "5", "-b:v", "6000k", "-maxrate", "8000k", "-bufsize", "12000k", // TODO Change bitrate when changing quality
-		"-qmin", "10", "-qmax", "42", "-threads", "4", "-deadline", "1", "-error-resilient", "1",
-		"-auto-alt-ref", "1",
-		"-f", "rtp", "rtp://127.0.0.1:5004",
-		"-vn", "-acodec", "libopus", "-cpu-used", "5", "-deadline", "1", "-qmin", "10", "-qmax", "42", "-error-resilient", "1", "-auto-alt-ref", "1",
-		"-f", "rtp", "rtp://127.0.0.1:5005"}
+		// Audio
+		"-vn", "-c:a", "libopus", "-b:a", "96k",
+		"-f", "rtp", fmt.Sprintf("rtp://127.0.0.1:%d", listeningPort),
+		// Source
+		"-an", "-c:v", "copy",
+		"-f", "rtp", fmt.Sprintf("rtp://127.0.0.1:%d", listeningPort+1)}
 	ffmpeg = exec.Command("ffmpeg", ffmpegArgs...)
 
 	// Handle errors output
@@ -287,4 +161,4 @@ func ingest(name string, input *stream.Stream, audio *stream.Stream) {
 	// Start process
 	err = ffmpeg.Start()
 	return ffmpeg, err
-} */
+}

stream/webrtc/webrtc.go

@@ -8,7 +8,7 @@ import (
 
 	"github.com/pion/webrtc/v3"
 	"gitlab.crans.org/nounous/ghostream/internal/monitoring"
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 // Options holds web package configuration
@@ -45,13 +45,10 @@ func GetNumberConnectedSessions(streamID string) int {
 
 // newPeerHandler is called when server receive a new session description
 // this initiates a WebRTC connection and return server description
-func newPeerHandler(localSdpChan chan webrtc.SessionDescription, remoteSdp struct {
-	StreamID          string
-	RemoteDescription webrtc.SessionDescription
-}, cfg *Options) {
+func newPeerHandler(name string, localSdpChan chan webrtc.SessionDescription, remoteSdp webrtc.SessionDescription, cfg *Options) {
 	// Create media engine using client SDP
 	mediaEngine := webrtc.MediaEngine{}
-	if err := mediaEngine.PopulateFromSDP(remoteSdp.RemoteDescription); err != nil {
+	if err := mediaEngine.PopulateFromSDP(remoteSdp); err != nil {
 		log.Println("Failed to create new media engine", err)
 		localSdpChan <- webrtc.SessionDescription{}
 		return
@@ -78,7 +75,7 @@ func newPeerHandler(localSdpChan chan webrtc.SessionDescription, remoteSdp struc
 	}
 
 	// Create video track
-	codec, payloadType := getPayloadType(mediaEngine, webrtc.RTPCodecTypeVideo, "VP8")
+	codec, payloadType := getPayloadType(mediaEngine, webrtc.RTPCodecTypeVideo, "H264")
 	videoTrack, err := webrtc.NewTrack(payloadType, rand.Uint32(), "video", "pion", codec)
 	if err != nil {
 		log.Println("Failed to create new video track", err)
@@ -106,13 +103,13 @@ func newPeerHandler(localSdpChan chan webrtc.SessionDescription, remoteSdp struc
 	}
 
 	// Set the remote SessionDescription
-	if err = peerConnection.SetRemoteDescription(remoteSdp.RemoteDescription); err != nil {
+	if err = peerConnection.SetRemoteDescription(remoteSdp); err != nil {
 		log.Println("Failed to set remote description", err)
 		localSdpChan <- webrtc.SessionDescription{}
 		return
 	}
 
-	streamID := remoteSdp.StreamID
+	streamID := name
 	split := strings.SplitN(streamID, "@", 2)
 	streamID = split[0]
 	quality := "source"
@@ -182,10 +179,7 @@ func getPayloadType(m webrtc.MediaEngine, codecType webrtc.RTPCodecType, codecNa
 }
 
 // Serve WebRTC media streaming server
-func Serve(streams map[string]*stream.Stream, remoteSdpChan chan struct {
-	StreamID          string
-	RemoteDescription webrtc.SessionDescription
-}, localSdpChan chan webrtc.SessionDescription, cfg *Options) {
+func Serve(streams *messaging.Streams, cfg *Options) {
 	if !cfg.Enabled {
 		// WebRTC is not enabled, ignore
 		return
@@ -193,17 +187,42 @@ func Serve(streams map[string]*stream.Stream, remoteSdpChan chan struct {
 
 	log.Printf("WebRTC server using UDP from port %d to %d", cfg.MinPortUDP, cfg.MaxPortUDP)
 
-	// Allocate memory
+	// WebRTC ingested tracks
 	videoTracks = make(map[string][]*webrtc.Track)
 	audioTracks = make(map[string][]*webrtc.Track)
 
-	// Ingest data
-	go autoIngest(streams)
+	// Subscribe to new stream event
+	event := make(chan string, 8)
+	streams.Subscribe(event)
 
+	// For each new stream
+	for name := range event {
+		// Get stream
+		stream, err := streams.Get(name)
+		if err != nil {
+			log.Printf("Failed to get stream '%s'", name)
+		}
+
+		// Get specific quality
+		// FIXME: make it possible to forward other qualities
+		qualityName := "source"
+		quality, err := stream.GetQuality(qualityName)
+		if err != nil {
+			log.Printf("Failed to get quality '%s'", qualityName)
+		}
+
+		// Start forwarding
+		log.Printf("Starting webrtc for '%s' quality '%s'", name, qualityName)
+		go ingest(name, quality)
+		go listenSdp(name, quality.WebRtcLocalSdp, quality.WebRtcRemoteSdp, cfg)
+	}
+}
+
+func listenSdp(name string, localSdp, remoteSdp chan webrtc.SessionDescription, cfg *Options) {
 	// Handle new connections
 	for {
 		// Wait for incoming session description
 		// then send the local description to browser
-		newPeerHandler(localSdpChan, <-remoteSdpChan, cfg)
+		newPeerHandler(name, localSdp, <-remoteSdp, cfg)
 	}
 }

stream/webrtc/webrtc_test.go

@@ -5,24 +5,19 @@ import (
 	"testing"
 
 	"github.com/pion/webrtc/v3"
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 func TestServe(t *testing.T) {
 	// Init streams messaging and WebRTC server
-	streams := make(map[string]*stream.Stream)
-	remoteSdpChan := make(chan struct {
-		StreamID          string
-		RemoteDescription webrtc.SessionDescription
-	})
-	localSdpChan := make(chan webrtc.SessionDescription)
+	streams := messaging.New()
 	cfg := Options{
 		Enabled:     true,
 		MinPortUDP:  10000,
 		MaxPortUDP:  10005,
 		STUNServers: []string{"stun:stun.l.google.com:19302"},
 	}
-	go Serve(streams, remoteSdpChan, localSdpChan, &cfg)
+	go Serve(streams, &cfg)
 
 	// New client connection
 	mediaEngine := webrtc.MediaEngine{}
@@ -31,7 +26,7 @@ func TestServe(t *testing.T) {
 	peerConnection, _ := api.NewPeerConnection(webrtc.Configuration{})
 
 	// Create video track
-	codec, payloadType := getPayloadType(mediaEngine, webrtc.RTPCodecTypeVideo, "VP8")
+	codec, payloadType := getPayloadType(mediaEngine, webrtc.RTPCodecTypeVideo, "H264")
 	videoTrack, err := webrtc.NewTrack(payloadType, rand.Uint32(), "video", "pion", codec)
 	if err != nil {
 		t.Error("Failed to create new video track", err)
@@ -58,12 +53,6 @@ func TestServe(t *testing.T) {
 	peerConnection.SetLocalDescription(offer)
 	<-gatherComplete
 
-	// Send offer to server
-	remoteSdpChan <- struct {
-		StreamID          string
-		RemoteDescription webrtc.SessionDescription
-	}{"demo", *peerConnection.LocalDescription()}
-	_ = <-localSdpChan
-
+	// FIXME: Send offer to server
 	// FIXME: verify connection did work
 }

transcoder/audio/audio.go

@@ -1,153 +0,0 @@
-// Package audio transcode a stream to filter the audio
-package audio
-
-import (
-	"bufio"
-	"fmt"
-	"github.com/3d0c/gmf"
-	"io"
-	"log"
-	"os/exec"
-	"strings"
-	"time"
-
-	"gitlab.crans.org/nounous/ghostream/stream"
-)
-
-// Options holds audio package configuration
-type Options struct {
-	Enabled bool
-	Bitrate int
-}
-
-// Init text transcoder
-func Init(streams map[string]*stream.Stream, cfg *Options) {
-	if !cfg.Enabled {
-		// Audio transcode is not enabled, ignore
-		return
-	}
-
-	// Regulary check existing streams
-	for {
-		for sourceName, sourceStream := range streams {
-			if strings.Contains(sourceName, "@") {
-				// Not a source stream, pass
-				continue
-			}
-
-			// Check that the transcoded stream does not already exist
-			name := sourceName + "@audio"
-			_, ok := streams[name]
-			if ok {
-				// Stream is already transcoded
-				continue
-			}
-
-			// Start conversion
-			log.Printf("Starting audio transcode '%s'", name)
-			st := stream.New()
-			streams[name] = st
-
-			go transcode(sourceStream, st, cfg)
-		}
-
-		// Regulary pull stream list,
-		// it may be better to tweak the messaging system
-		// to get an event on a new stream.
-		time.Sleep(time.Second)
-	}
-}
-
-// Extract audio from stream
-func transcode(input, output *stream.Stream, cfg *Options) {
-	// Start ffmpeg to transcode video to audio
-	videoInput := make(chan []byte, 1024)
-	input.Register(videoInput)
-	ffmpeg, audio, err := startFFmpeg(videoInput, cfg)
-	if err != nil {
-		log.Printf("Error while starting ffmpeg: %s", err)
-		return
-	}
-
-	dataBuff := make([]byte, gmf.IO_BUFFER_SIZE) // UDP MTU
-	for {
-		n, err := (*audio).Read(dataBuff)
-		if err != nil {
-			log.Printf("An error occurred while reading input: %s", err)
-			break
-		}
-		if n == 0 {
-			// Stream is finished
-			break
-		}
-
-		output.Broadcast <- dataBuff[:n]
-	}
-
-	// Stop transcode
-	_ = ffmpeg.Process.Kill()
-	_ = (*audio).Close()
-}
-
-// Start a ffmpeg instance to convert stream into audio
-func startFFmpeg(in <-chan []byte, cfg *Options) (*exec.Cmd, *io.ReadCloser, error) {
-	// TODO in a future release: remove FFMPEG dependency and transcode directly using the libopus API
-
-	// FIXME It seems impossible to get a RTP Packet from standard output.
-	// We need to find a clean solution, without waiting on UDP listeners.
-	// FIXME We should also not build RTP packets here.
-
-	/*	port := 0
-		var udpListener *net.UDPConn
-		var err error
-		for {
-			port = rand.Intn(65535)
-			udpListener, err = net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP("127.0.0.1"), Port: port})
-			if err != nil {
-				if strings.Contains(fmt.Sprintf("%s", err), "address already in use") {
-					continue
-				}
-				return nil, nil, err
-			}
-			break
-		}*/
-
-	bitrate := fmt.Sprintf("%dk", cfg.Bitrate)
-	// Use copy audio codec, assume for now that libopus is used by the streamer
-	ffmpegArgs := []string{"-hide_banner", "-loglevel", "error", "-i", "pipe:0",
-		"-vn", "-c:a", "copy", "-b:a", bitrate, "-f", "mpegts", "pipe:1"}
-	ffmpeg := exec.Command("ffmpeg", ffmpegArgs...)
-
-	// Handle errors output
-	errOutput, err := ffmpeg.StderrPipe()
-	if err != nil {
-		return nil, nil, err
-	}
-	go func() {
-		scanner := bufio.NewScanner(errOutput)
-		for scanner.Scan() {
-			log.Printf("[AUDIO FFMPEG %s] %s", "demo", scanner.Text())
-		}
-	}()
-
-	// Handle text output
-	output, err := ffmpeg.StdoutPipe()
-	if err != nil {
-		return nil, nil, err
-	}
-
-	// Handle stream input
-	input, err := ffmpeg.StdinPipe()
-	if err != nil {
-		return nil, nil, err
-	}
-	go func() {
-		for data := range in {
-			_, _ = input.Write(data)
-		}
-	}()
-
-	// Start process
-	err = ffmpeg.Start()
-	return ffmpeg, &output, err
-}

transcoder/audio/audio_test.go

@@ -1 +0,0 @@
-package audio

transcoder/text/text.go

@@ -8,10 +8,8 @@ import (
 	"io"
 	"log"
 	"os/exec"
-	"strings"
-	"time"
 
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 // Options holds text package configuration
@@ -23,45 +21,46 @@ type Options struct {
 }
 
 // Init text transcoder
-func Init(streams map[string]*stream.Stream, cfg *Options) {
+func Init(streams *messaging.Streams, cfg *Options) {
 	if !cfg.Enabled {
 		// Text transcode is not enabled, ignore
 		return
 	}
 
-	// Regulary check existing streams
-	for {
-		for sourceName, sourceStream := range streams {
-			if strings.Contains(sourceName, "@") {
-				// Not a source stream, pass
-				continue
-			}
+	// Subscribe to new stream event
+	event := make(chan string, 8)
+	streams.Subscribe(event)
 
-			// Check that the transcoded stream does not already exist
-			name := sourceName + "@text"
-			_, ok := streams[name]
-			if ok {
-				// Stream is already transcoded
-				continue
-			}
-
-			// Start conversion
-			log.Printf("Starting text transcode '%s'", name)
-			st := stream.New()
-			streams[name] = st
-
-			go transcode(sourceStream, st, cfg)
+	// For each new stream
+	for name := range event {
+		// Get stream
+		stream, err := streams.Get(name)
+		if err != nil {
+			log.Printf("Failed to get stream '%s'", name)
 		}
 
-		// Regulary pull stream list,
-		// it may be better to tweak the messaging system
-		// to get an event on a new stream.
-		time.Sleep(time.Second)
+		// Get specific quality
+		// FIXME: make it possible to forward other qualities
+		qualityName := "source"
+		quality, err := stream.GetQuality(qualityName)
+		if err != nil {
+			log.Printf("Failed to get quality '%s'", qualityName)
+		}
+
+		// Create new text quality
+		outputQuality, err := stream.CreateQuality("text")
+		if err != nil {
+			log.Printf("Failed to create quality 'text': %s", err)
+		}
+
+		// Start forwarding
+		log.Printf("Starting text transcoder for '%s' quality '%s'", name, qualityName)
+		go transcode(quality, outputQuality, cfg)
 	}
 }
 
 // Convert video to ANSI text
-func transcode(input, output *stream.Stream, cfg *Options) {
+func transcode(input, output *messaging.Quality, cfg *Options) {
 	// Start ffmpeg to transcode video to rawvideo
 	videoInput := make(chan []byte, 1024)
 	input.Register(videoInput)

transcoder/transcoder.go

@@ -2,19 +2,16 @@
 package transcoder
 
 import (
-	"gitlab.crans.org/nounous/ghostream/stream"
-	"gitlab.crans.org/nounous/ghostream/transcoder/audio"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 	"gitlab.crans.org/nounous/ghostream/transcoder/text"
 )
 
 // Options holds text package configuration
 type Options struct {
-	Text  text.Options
-	Audio audio.Options
+	Text text.Options
 }
 
 // Init all transcoders
-func Init(streams map[string]*stream.Stream, cfg *Options) {
+func Init(streams *messaging.Streams, cfg *Options) {
 	go text.Init(streams, &cfg.Text)
-	go audio.Init(streams, &cfg.Audio)
 }

web/handler.go

@@ -10,74 +10,39 @@ import (
 	"net/http"
 	"regexp"
 	"strings"
+	"sync"
+	"time"
 
 	"github.com/markbates/pkger"
 	"gitlab.crans.org/nounous/ghostream/internal/monitoring"
+	"gitlab.crans.org/nounous/ghostream/stream/ovenmediaengine"
 	"gitlab.crans.org/nounous/ghostream/stream/webrtc"
 )
 
 var (
 	// Precompile regex
-	validPath = regexp.MustCompile("^/[a-z0-9@_-]*$")
+	validPath = regexp.MustCompile("^/[a-zA-Z0-9@_-]*$")
+
+	counterMutex     = new(sync.Mutex)
+	connectedClients = make(map[string]map[string]int64)
 )
 
-// Handle WebRTC session description exchange via POST
-func viewerPostHandler(w http.ResponseWriter, r *http.Request) {
-	// Limit response body to 128KB
-	r.Body = http.MaxBytesReader(w, r.Body, 131072)
-
-	// Get stream ID from URL, or from domain name
-	path := r.URL.Path[1:]
-	host := r.Host
-	if strings.Contains(host, ":") {
-		realHost, _, err := net.SplitHostPort(r.Host)
-		if err != nil {
-			log.Printf("Failed to split host and port from %s", r.Host)
-			return
-		}
-		host = realHost
-	}
-	host = strings.Replace(host, ".", "-", -1)
-	if streamID, ok := cfg.MapDomainToStream[host]; ok {
-		path = streamID
-	}
-
-	// Decode client description
-	dec := json.NewDecoder(r.Body)
-	dec.DisallowUnknownFields()
-	remoteDescription := webrtc.SessionDescription{}
-	if err := dec.Decode(&remoteDescription); err != nil {
-		http.Error(w, "The JSON WebRTC offer is malformed", http.StatusBadRequest)
+// Handle site index and viewer pages
+func viewerHandler(w http.ResponseWriter, r *http.Request) {
+	// Validation on path
+	if validPath.FindStringSubmatch(r.URL.Path) == nil {
+		http.NotFound(w, r)
+		log.Printf("Replied not found on %s", r.URL.Path)
 		return
 	}
 
-	// Exchange session descriptions with WebRTC stream server
-	remoteSdpChan <- struct {
-		StreamID          string
-		RemoteDescription webrtc.SessionDescription
-	}{StreamID: path, RemoteDescription: remoteDescription}
-	localDescription := <-localSdpChan
-
-	// Send server description as JSON
-	jsonDesc, err := json.Marshal(localDescription)
-	if err != nil {
-		http.Error(w, "An error occurred while formating response", http.StatusInternalServerError)
-		log.Println("An error occurred while sending session description", err)
-		return
-	}
-	w.Header().Set("Content-Type", "application/json")
-	_, err = w.Write(jsonDesc)
-	if err != nil {
-		log.Println("An error occurred while sending session description", err)
+	// Check method
+	if r.Method != http.MethodGet {
+		http.Error(w, "Method not allowed.", http.StatusMethodNotAllowed)
 	}
 
-	// Increment monitoring
-	monitoring.WebSessions.Inc()
-}
-
-func viewerGetHandler(w http.ResponseWriter, r *http.Request) {
 	// Get stream ID from URL, or from domain name
-	path := r.URL.Path[1:]
+	path := strings.ToLower(r.URL.Path[1:])
 	host := r.Host
 	if strings.Contains(host, ":") {
 		realHost, _, err := net.SplitHostPort(r.Host)
@@ -93,7 +58,7 @@ func viewerGetHandler(w http.ResponseWriter, r *http.Request) {
 		if path == "about" {
 			path = ""
 		} else {
-			path = streamID
+			path = strings.ToLower(streamID)
 		}
 	}
 
@@ -102,7 +67,8 @@ func viewerGetHandler(w http.ResponseWriter, r *http.Request) {
 		Cfg       *Options
 		Path      string
 		WidgetURL string
-	}{Path: path, Cfg: cfg, WidgetURL: ""}
+		OMECfg    *ovenmediaengine.Options
+	}{Path: path, Cfg: cfg, WidgetURL: "", OMECfg: omeCfg}
 
 	// Load widget is user does not disable it with ?nowidget
 	if _, ok := r.URL.Query()["nowidget"]; !ok {
@@ -122,27 +88,6 @@ func viewerGetHandler(w http.ResponseWriter, r *http.Request) {
 	monitoring.WebViewerServed.Inc()
 }
 
-// Handle site index and viewer pages
-// POST requests are used to exchange WebRTC session descriptions
-func viewerHandler(w http.ResponseWriter, r *http.Request) {
-	// Validation on path
-	if validPath.FindStringSubmatch(r.URL.Path) == nil {
-		http.NotFound(w, r)
-		log.Printf("Replied not found on %s", r.URL.Path)
-		return
-	}
-
-	// Route depending on HTTP method
-	switch r.Method {
-	case http.MethodGet:
-		viewerGetHandler(w, r)
-	case http.MethodPost:
-		viewerPostHandler(w, r)
-	default:
-		http.Error(w, "Sorry, only GET and POST methods are supported.", http.StatusBadRequest)
-	}
-}
-
 func staticHandler() http.Handler {
 	// Set up static files server
 	staticFs := http.FileServer(pkger.Dir("/web/static"))
@@ -150,22 +95,49 @@ func staticHandler() http.Handler {
 }
 
 func statisticsHandler(w http.ResponseWriter, r *http.Request) {
+	// Retrieve stream name from URL
 	name := strings.SplitN(strings.Replace(r.URL.Path[7:], "/", "", -1), "@", 2)[0]
+	name = strings.ToLower(name)
 	userCount := 0
 
-	// Get all substreams
-	for _, outputType := range []string{"", "@720p", "@480p", "@360p", "@240p", "@text"} {
-		// Get requested stream
-		stream, ok := streams[name+outputType]
-		if ok {
-			// Get number of output channels
-			userCount += stream.ClientCount()
+	// Clients have a unique generated identifier per session, that expires in 40 seconds.
+	// Each time the client connects to this page, the identifier is renewed.
+	// Yeah, that's not a good way to have stats, but it works...
+	if connectedClients[name] == nil {
+		counterMutex.Lock()
+		connectedClients[name] = make(map[string]int64)
+		counterMutex.Unlock()
+	}
+	currentTime := time.Now().Unix()
+	if _, ok := r.URL.Query()["uid"]; ok {
+		uid := r.URL.Query()["uid"][0]
+		counterMutex.Lock()
+		connectedClients[name][uid] = currentTime
+		counterMutex.Unlock()
+	}
+	toDelete := make([]string, 0)
+	counterMutex.Lock()
+	for uid, oldTime := range connectedClients[name] {
+		if currentTime-oldTime > 40 {
+			toDelete = append(toDelete, uid)
 		}
 	}
+	for _, uid := range toDelete {
+		delete(connectedClients[name], uid)
+	}
+	counterMutex.Unlock()
+
+	// Get requested stream
+	stream, err := streams.Get(name)
+	if err == nil {
+		userCount = stream.ClientCount()
+		userCount += webrtc.GetNumberConnectedSessions(name)
+		userCount += len(connectedClients[name])
+	}
 
 	// Display connected users statistics
 	enc := json.NewEncoder(w)
-	err := enc.Encode(struct{ ConnectedViewers int }{userCount})
+	err = enc.Encode(struct{ ConnectedViewers int }{userCount})
 	if err != nil {
 		http.Error(w, "Failed to generate JSON.", http.StatusInternalServerError)
 		log.Printf("Failed to generate JSON: %s", err)

web/handler_test.go

@@ -4,6 +4,8 @@ import (
 	"net/http"
 	"net/http/httptest"
 	"testing"
+
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 func TestViewerPageGET(t *testing.T) {
@@ -12,6 +14,9 @@ func TestViewerPageGET(t *testing.T) {
 		t.Errorf("Failed to load templates: %v", err)
 	}
 
+	// Init streams messaging
+	streams = messaging.New()
+
 	cfg = &Options{}
 
 	// Test GET request

web/static/css/player.css

@@ -2,7 +2,7 @@
 video {
   display: block;
   flex-grow: 1;
-  width: 100%;
+  max-width: 100%;
 
   /* Black borders around video */
   background-color: #000;

web/static/js/modules/viewerCounter.js

@@ -0,0 +1,30 @@
+/**
+ * ViewerCounter show the number of active viewers
+ */
+export class ViewerCounter {
+    /**
+     * @param {HTMLElement} element 
+     * @param {String} streamName 
+     */
+    constructor(element, streamName) {
+        this.element = element;
+        this.url = "/_stats/" + streamName;
+        this.uid = Math.floor(1e19 * Math.random()).toString(16);
+    }
+
+    /**
+     * Regulary update counter
+     * 
+     * @param {Number} updatePeriod 
+     */
+    regularUpdate(updatePeriod) {
+        setInterval(() => this.refreshViewersCounter(), updatePeriod);
+    }
+
+    refreshViewersCounter() {
+        fetch(this.url + "?uid=" + this.uid)
+            .then(response => response.json())
+            .then((data) => this.element.innerText = data.ConnectedViewers)
+            .catch(console.log);
+    }
+}

web/static/js/modules/webrtc.js

@@ -0,0 +1,99 @@
+/**
+ * GsWebRTC to connect to Ghostream
+ */
+export class GsWebRTC {
+    /**
+     * @param {list} stunServers STUN servers
+     * @param {HTMLElement} viewer Video HTML element
+     * @param {HTMLElement} connectionIndicator Connection indicator element
+     */
+    constructor(stunServers, viewer, connectionIndicator) {
+        this.viewer = viewer;
+        this.connectionIndicator = connectionIndicator;
+        this.pc = new RTCPeerConnection({
+            iceServers: [{ urls: stunServers }]
+        });
+
+        // We want to receive audio and video
+        this.pc.addTransceiver("video", { "direction": "sendrecv" });
+        this.pc.addTransceiver("audio", { "direction": "sendrecv" });
+
+        // Configure events
+        this.pc.oniceconnectionstatechange = () => this._onConnectionStateChange();
+        this.pc.ontrack = (e) => this._onTrack(e);
+    }
+
+    /**
+     * On connection change, log it and change indicator.
+     * If connection closed or failed, try to reconnect.
+     */
+    _onConnectionStateChange() {
+        console.log("[WebRTC] ICE connection state changed to " + this.pc.iceConnectionState);
+        switch (this.pc.iceConnectionState) {
+        case "disconnected":
+            this.connectionIndicator.style.fill = "#dc3545";
+            break;
+        case "checking":
+            this.connectionIndicator.style.fill = "#ffc107";
+            break;
+        case "connected":
+            this.connectionIndicator.style.fill = "#28a745";
+            break;
+        case "closed":
+        case "failed":
+            console.log("[WebRTC] Connection closed, restarting...");
+            /*peerConnection.close();
+                    peerConnection = null;
+                    setTimeout(startPeerConnection, 1000);*/
+            break;
+        }
+    }
+
+    /**
+     * On new track, add it to the player
+     * @param {Event} event 
+     */
+    _onTrack(event) {
+        console.log(`[WebRTC] New ${event.track.kind} track`);
+        if (event.track.kind === "video") {
+            this.viewer.srcObject = event.streams[0];
+        }
+    }
+
+    /**
+     * Create an offer and set local description.
+     * After that the browser will fire onicecandidate events.
+     */
+    createOffer() {
+        this.pc.createOffer().then(offer => {
+            this.pc.setLocalDescription(offer);
+            console.log("[WebRTC] WebRTC offer created");
+        }).catch(console.log);
+    }
+
+    /**
+     * Register a function to call to send local descriptions
+     * @param {Function} sendFunction Called with a local description to send.
+     */
+    onICECandidate(sendFunction) {
+        // When candidate is null, ICE layer has run out of potential configurations to suggest
+        // so let's send the offer to the server.
+        // FIXME: Send offers progressively to do Trickle ICE
+        this.pc.onicecandidate = event => {
+            if (event.candidate === null) {
+                // Send offer to server
+                console.log("[WebRTC] Sending session description to server");
+                sendFunction(this.pc.localDescription);
+            }
+        };
+    }
+
+    /**
+     * Set WebRTC remote description
+     * After that, the connection will be established and ontrack will be fired.
+     * @param {RTCSessionDescription} sdp Session description data
+     */
+    setRemoteDescription(sdp) {
+        this.pc.setRemoteDescription(sdp);
+    }
+}

web/static/js/modules/websocket.js

@@ -0,0 +1,62 @@
+/**
+ * GsWebSocket to do Ghostream signalling
+ */
+export class GsWebSocket {
+    constructor() {
+        const protocol = (window.location.protocol === "https:") ? "wss://" : "ws://";
+        this.url = protocol + window.location.host + "/_ws/";
+
+        // Open WebSocket
+        this._open();
+
+        // Configure events
+        this.socket.addEventListener("open", () => {
+            console.log("[WebSocket] Connection established");
+        });
+        this.socket.addEventListener("close", () => {
+            console.log("[WebSocket] Connection closed, retrying connection in 1s...");
+            setTimeout(() => this._open(), 1000);
+        });
+        this.socket.addEventListener("error", () => {
+            console.log("[WebSocket] Connection errored, retrying connection in 1s...");
+            setTimeout(() => this._open(), 1000);
+        });
+    }
+
+    _open() {
+        console.log(`[WebSocket] Connecting to ${this.url}...`);
+        this.socket = new WebSocket(this.url);
+    }
+
+    /**
+     * Send local WebRTC session description to remote.
+     * @param {SessionDescription} localDescription WebRTC local SDP
+     * @param {string} stream Name of the stream
+     * @param {string} quality Requested quality 
+     */
+    sendLocalDescription(localDescription, stream, quality) {
+        if (this.socket.readyState !== 1) {
+            console.log("[WebSocket] Waiting for connection to send data...");
+            setTimeout(() => this.sendLocalDescription(localDescription, stream, quality), 100);
+            return;
+        }
+        console.log(`[WebSocket] Sending WebRTC local session description for stream ${stream} quality ${quality}`);
+        this.socket.send(JSON.stringify({
+            "webRtcSdp": localDescription,
+            "stream": stream,
+            "quality": quality
+        }));
+    }
+
+    /**
+     * Set callback function on new remote session description.
+     * @param {Function} callback Function called when data is received
+     */
+    onRemoteDescription(callback) {
+        this.socket.addEventListener("message", (event) => {
+            console.log("[WebSocket] Received WebRTC remote session description");
+            const sdp = new RTCSessionDescription(JSON.parse(event.data));
+            callback(sdp);
+        });
+    }
+}

web/static/js/ovenplayer.js

@@ -0,0 +1,116 @@
+import { ViewerCounter } from "./modules/viewerCounter.js";
+
+/**
+ * Initialize viewer page
+ *
+ * @param {String} stream
+ * @param {String} omeApp
+ * @param {Number} viewersCounterRefreshPeriod
+ * @param {String} posterUrl
+ */
+export function initViewerPage(stream, omeApp, viewersCounterRefreshPeriod, posterUrl) {
+    // Create viewer counter
+    const viewerCounter = new ViewerCounter(
+        document.getElementById("connected-people"),
+        stream,
+    );
+    viewerCounter.regularUpdate(viewersCounterRefreshPeriod);
+    viewerCounter.refreshViewersCounter();
+
+    // Side widget toggler
+    const sideWidgetToggle = document.getElementById("sideWidgetToggle");
+    const sideWidget = document.getElementById("sideWidget");
+    if (sideWidgetToggle !== null && sideWidget !== null) {
+        // On click, toggle side widget visibility
+        sideWidgetToggle.addEventListener("click", function () {
+            if (sideWidget.style.display === "none") {
+                sideWidget.style.display = "block";
+                sideWidgetToggle.textContent = "»";
+            } else {
+                sideWidget.style.display = "none";
+                sideWidgetToggle.textContent = "«";
+            }
+        });
+    }
+
+    // Create player
+    let player = OvenPlayer.create("viewer", {
+        title: stream,
+        image: posterUrl,
+        autoStart: true,
+        mute: true,
+        expandFullScreenUI: true,
+        sources: [
+            {
+                "file": "wss://" + window.location.host + "/" + omeApp + "/" + stream,
+                "type": "webrtc",
+                "label": " WebRTC - Source"
+            },
+            {
+                "file": "https://" + window.location.host + "/" + omeApp + "/" + stream + "_bypass/playlist.m3u8",
+                "type": "hls",
+                "label": " HLS"
+            },
+            {
+                "file": "https://" + window.location.host + "/" + omeApp + "/" + stream + "_bypass/manifest.mpd",
+                "type": "dash",
+                "label": "DASH"
+            },
+            {
+                "file": "https://" + window.location.host + "/" + omeApp + "/" + stream + "_bypass/manifest_ll.mpd",
+                "type": "dash",
+                "label": "LL-DASH"
+            },
+        ]
+    });
+    player.on("stateChanged", function (data) {
+        if (data.newstate === "loading") {
+            document.getElementById("connectionIndicator").style.fill = '#ffc107'
+        }
+        if (data.newstate === "playing") {
+            document.getElementById("connectionIndicator").style.fill = '#28a745'
+        }
+        if (data.newstate === "idle") {
+            document.getElementById("connectionIndicator").style.fill = '#dc3545'
+        }
+    })
+    player.on("error", function (error) {
+        document.getElementById("connectionIndicator").style.fill = '#dc3545'
+        if (error.code === 501 || error.code === 406) {
+            // Clear messages
+            const errorMsg = document.getElementsByClassName("op-message-text")[0]
+            errorMsg.textContent = ""
+
+            const warningIcon = document.getElementsByClassName("op-message-icon")[0]
+            warningIcon.textContent = ""
+
+            // Reload in 30s
+            setTimeout(function () {
+                player.load()
+            }, 30000)
+        } else {
+            console.log(error);
+        }
+    });
+
+    // Register keyboard events
+    window.addEventListener("keydown", (event) => {
+        switch (event.key) {
+            case "f":
+                // F key put player in fullscreen
+                if (document.fullscreenElement !== null) {
+                    document.exitFullscreen()
+                } else {
+                    document.getElementsByTagName("video")[0].requestFullscreen()
+                }
+                break;
+            case "m":
+            case " ":
+                // M and space key mute player
+                player.setMute(!player.getMute())
+                event.preventDefault()
+                player.play()
+                break;
+        }
+    });
+}

web/static/js/sideWidget.js

@@ -1,12 +0,0 @@
-// Side widget toggler
-const sideWidgetToggle = document.getElementById("sideWidgetToggle")
-sideWidgetToggle.addEventListener("click", function () {
-    const sideWidget = document.getElementById("sideWidget")
-    if (sideWidget.style.display === "none") {
-        sideWidget.style.display = "block"
-        sideWidgetToggle.textContent = "»"
-    } else {
-        sideWidget.style.display = "none"
-        sideWidgetToggle.textContent = "«"
-    }
-})

web/static/js/videoQuality.js

@@ -1,9 +0,0 @@
-document.getElementById("quality").addEventListener("change", (event) => {
-    console.log(`Stream quality changed to ${event.target.value}`)
-
-    // Restart the connection with a new quality
-    peerConnection.close()
-    peerConnection = null
-    streamPath = window.location.href + event.target.value
-    startPeerConnection()
-})

web/static/js/viewer.js

@@ -1,97 +1,87 @@
-let peerConnection
-let streamPath = window.location.href
+import { GsWebSocket } from "./modules/websocket.js";
+import { ViewerCounter } from "./modules/viewerCounter.js";
+import { GsWebRTC } from "./modules/webrtc.js";
 
-startPeerConnection = () => {
-    // Init peer connection
-    peerConnection = new RTCPeerConnection({
-        iceServers: [{ urls: stunServers }]
-    })
+/**
+ * Initialize viewer page
+ * 
+ * @param {String} stream 
+ * @param {List} stunServers 
+ * @param {Number} viewersCounterRefreshPeriod 
+ */
+export function initViewerPage(stream, stunServers, viewersCounterRefreshPeriod) {
+    // Viewer element
+    const viewer = document.getElementById("viewer");
 
-    // On connection change, change indicator color
-    // if connection failed, restart peer connection
-    peerConnection.oniceconnectionstatechange = e => {
-        console.log("ICE connection state changed, " + peerConnection.iceConnectionState)
-        switch (peerConnection.iceConnectionState) {
-            case "disconnected":
-                document.getElementById("connectionIndicator").style.fill = "#dc3545"
-                break
-            case "checking":
-                document.getElementById("connectionIndicator").style.fill = "#ffc107"
-                break
-            case "connected":
-                document.getElementById("connectionIndicator").style.fill = "#28a745"
-                break
-            case "closed":
-            case "failed":
-                console.log("Connection failed, restarting...")
-                peerConnection.close()
-                peerConnection = null
-                setTimeout(startPeerConnection, 1000)
-                break
-        }
-    }
+    // Default quality
+    let quality = "source";
 
-    // We want to receive audio and video
-    peerConnection.addTransceiver('video', { 'direction': 'sendrecv' })
-    peerConnection.addTransceiver('audio', { 'direction': 'sendrecv' })
+    // Create WebSocket and WebRTC
+    const websocket = new GsWebSocket();
+    const webrtc = new GsWebRTC(
+        stunServers,
+        viewer,
+        document.getElementById("connectionIndicator"),
+    );
+    webrtc.createOffer();
+    webrtc.onICECandidate(localDescription => {
+        websocket.sendLocalDescription(localDescription, stream, quality);
+    });
+    websocket.onRemoteDescription(sdp => {
+        webrtc.setRemoteDescription(sdp);
+    });
 
-    // Create offer and set local description
-    peerConnection.createOffer().then(offer => {
-        // After setLocalDescription, the browser will fire onicecandidate events
-        peerConnection.setLocalDescription(offer)
-    }).catch(console.log)
-
-    // When candidate is null, ICE layer has run out of potential configurations to suggest
-    // so let's send the offer to the server
-    peerConnection.onicecandidate = event => {
-        if (event.candidate === null) {
-            // Send offer to server
-            // The server know the stream name from the url
-            // The server replies with its description
-            // After setRemoteDescription, the browser will fire ontrack events
-            console.log("Sending session description to server")
-            fetch(streamPath, {
-                method: 'POST',
-                headers: {
-                    'Accept': 'application/json',
-                    'Content-Type': 'application/json'
-                },
-                body: JSON.stringify(peerConnection.localDescription)
-            })
-                .then(response => response.json())
-                .then((data) => peerConnection.setRemoteDescription(new RTCSessionDescription(data)))
-                .catch(console.log)
-        }
-    }
-
-    // When video track is received, configure player
-    peerConnection.ontrack = function (event) {
-        console.log(`New ${event.track.kind} track`)
-        if (event.track.kind === "video") {
-            const viewer = document.getElementById('viewer')
-            viewer.srcObject = event.streams[0]
-        }
-    }
-}
-
-// Register keyboard events
-let viewer = document.getElementById("viewer")
-window.addEventListener("keydown", (event) => {
-    switch (event.key) {
-        case 'f':
+    // Register keyboard events
+    window.addEventListener("keydown", (event) => {
+        switch (event.key) {
+        case "f":
             // F key put player in fullscreen
             if (document.fullscreenElement !== null) {
-                document.exitFullscreen()
+                document.exitFullscreen();
             } else {
-                viewer.requestFullscreen()
+                viewer.requestFullscreen();
             }
-            break
-        case 'm':
-        case ' ':
+            break;
+        case "m":
+        case " ":
             // M and space key mute player
-            viewer.muted = !viewer.muted
-            event.preventDefault()
-            viewer.play()
-            break
+            viewer.muted = !viewer.muted;
+            event.preventDefault();
+            viewer.play();
+            break;
+        }
+    });
+
+    // Create viewer counter
+    const viewerCounter = new ViewerCounter(
+        document.getElementById("connected-people"),
+        stream,
+    );
+    viewerCounter.regularUpdate(viewersCounterRefreshPeriod);
+    viewerCounter.refreshViewersCounter();
+
+    // Side widget toggler
+    const sideWidgetToggle = document.getElementById("sideWidgetToggle");
+    const sideWidget = document.getElementById("sideWidget");
+    if (sideWidgetToggle !== null && sideWidget !== null) {
+        // On click, toggle side widget visibility
+        sideWidgetToggle.addEventListener("click", function () {
+            if (sideWidget.style.display === "none") {
+                sideWidget.style.display = "block";
+                sideWidgetToggle.textContent = "»";
+            } else {
+                sideWidget.style.display = "none";
+                sideWidgetToggle.textContent = "«";
+            }
+        });
     }
-})
+
+    // Video quality toggler
+    document.getElementById("quality").addEventListener("change", (event) => {
+        quality = event.target.value;
+        console.log(`Stream quality changed to ${quality}`);
+
+        // Restart WebRTC negociation
+        webrtc.createOffer();
+    });
+}

web/static/js/viewersCounter.js

@@ -1,12 +0,0 @@
-// Refresh viewer count by pulling metric from server
-function refreshViewersCounter(streamID, period) {
-    // Distinguish oneDomainPerStream mode
-    fetch("/_stats/" + streamID)
-        .then(response => response.json())
-        .then((data) => document.getElementById("connected-people").innerText = data.ConnectedViewers)
-        .catch(console.log)
-
-    setTimeout(() => {
-        refreshViewersCounter(streamID, period)
-    }, period)
-}

web/static/ovenplayer/ovenplayer.js.LICENSE

@@ -0,0 +1 @@
+/*! OvenPlayerv0.9.0 | (c)2020 AirenSoft Co., Ltd. | MIT license (https://github.com/AirenSoft/OvenPlayerPrivate/blob/master/LICENSE) | Github : https://github.com/AirenSoft/OvenPlayer */

web/static/ovenplayer/ovenplayer.provider.DashProvider-0.9.0.js.LICENSE

@@ -0,0 +1 @@
+/*! OvenPlayerv0.9.0 | (c)2020 AirenSoft Co., Ltd. | MIT license (https://github.com/AirenSoft/OvenPlayerPrivate/blob/master/LICENSE) | Github : https://github.com/AirenSoft/OvenPlayer */

web/static/ovenplayer/ovenplayer.provider.DashProvider~ovenplayer.provider.HlsProvider~ovenplayer.provider.Html5~ovenplaye~2ec193ac-0.9.0.js.LICENSE

@@ -0,0 +1 @@
+/*! OvenPlayerv0.9.0 | (c)2020 AirenSoft Co., Ltd. | MIT license (https://github.com/AirenSoft/OvenPlayerPrivate/blob/master/LICENSE) | Github : https://github.com/AirenSoft/OvenPlayer */

web/static/ovenplayer/ovenplayer.provider.HlsProvider-0.9.0.js.LICENSE

@@ -0,0 +1 @@
+/*! OvenPlayerv0.9.0 | (c)2020 AirenSoft Co., Ltd. | MIT license (https://github.com/AirenSoft/OvenPlayerPrivate/blob/master/LICENSE) | Github : https://github.com/AirenSoft/OvenPlayer */

web/static/ovenplayer/ovenplayer.provider.Html5-0.9.0.js.LICENSE

@@ -0,0 +1 @@
+/*! OvenPlayerv0.9.0 | (c)2020 AirenSoft Co., Ltd. | MIT license (https://github.com/AirenSoft/OvenPlayerPrivate/blob/master/LICENSE) | Github : https://github.com/AirenSoft/OvenPlayer */

web/static/ovenplayer/ovenplayer.provider.WebRTCProvider-0.9.0.js.LICENSE

@@ -0,0 +1 @@
+/*! OvenPlayerv0.9.0 | (c)2020 AirenSoft Co., Ltd. | MIT license (https://github.com/AirenSoft/OvenPlayerPrivate/blob/master/LICENSE) | Github : https://github.com/AirenSoft/OvenPlayer */

web/static/ovenplayer/ovenplayer.sdk.js.LICENSE

@@ -0,0 +1 @@
+/*! OvenPlayerv0.9.0 | (c)2020 AirenSoft Co., Ltd. | MIT license (https://github.com/AirenSoft/OvenPlayerPrivate/blob/master/LICENSE) | Github : https://github.com/AirenSoft/OvenPlayer */

web/template/_base.html

@@ -4,6 +4,7 @@
 
 <head>
   <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
   <title>{{if .Path}}{{.Path}} - {{end}}{{.Cfg.Name}}</title>
   <link rel="stylesheet" href="static/css/style.css">
   <link rel="stylesheet" href="static/css/player.css">

web/template/index.html

@@ -9,7 +9,11 @@
   </p>
 
   <h2>Comment je diffuse ?</h2>
-  <p>Pour diffuser un contenu vous devez être adhérent Crans.</p>
+  <p>
+    Pour diffuser un contenu vous devez avoir des identifiants valides.
+    Si le service est hébergé par une association, il est probable que
+    vous deviez être membre de cette association.
+  </p>
 
   <h3>Avec Open Broadcaster Software</h3>
   <p>
@@ -21,11 +25,7 @@
   <ul>
     <li>
       <b>Serveur :</b>
-      <code>srt://{{.Cfg.Hostname}}:{{.Cfg.SRTServerPort}}</code>,
-    </li>
-    <li>
-      <b>Clé de stream :</b>
-      <code>IDENTIFIANT:MOT_DE_PASSE</code>
+      <code>srt://{{.Cfg.Hostname}}:{{.Cfg.SRTServerPort}}?streamid=IDENTIFIANT:MOT_DE_PASSE</code>,
       avec <code>IDENTIFIANT</code> et <code>MOT_DE_PASSE</code>
       vos identifiants.
     </li>
@@ -46,29 +46,104 @@
   <p>
     <code>
       {{/* FIXME replace with good SRT params */}}
-      ffmpeg -re -i mavideo.webm -vcodec libx264 -vprofile baseline
+      ffmpeg -re -i mavideo.webm -vcodec libx264
+      -preset:v veryfast -vprofile baseline -tune zerolatency
       -acodec aac -strict -2 -f flv
       srt://{{.Cfg.Hostname}}:{{.Cfg.SRTServerPort}}?streamid=IDENTIFIANT:MOT_DE_PASSE
     </code>
   </p>
 
+  <h2>Comment lire un flux depuis un lecteur externe ?</h2>
+  <p>
+    À l'heure actuelle, la plupart des lecteurs vidéos ne supportent
+    pas le protocole SRT, ou le supportent mal. Un travail est en
+    cours pour les rendre un maximum compatibles. Liste non exhaustive
+    des lecteurs vidéos testés :
+  </p>
+
+  <h3>FFPlay</h3>
+  <p>
+    Si FFMpeg est installé sur votre machine, il est accompagné d'un
+    lecteur vidéo nommé <code>ffplay</code>. Si FFMpeg est compilé
+    avec le support de SRT (c'est le cas sur la plupart des distributions,
+    sauf cas ci-dessous), il vous suffira d'exécuter :
+  </p>
+
+  <p>
+    <code>
+      ffplay -fflags nobuffer srt://{{.Cfg.Hostname}}:{{.Cfg.SRTServerPort}}?streamid=IDENTIFIANT
+    </code>
+  </p>
+
+  <h3>MPV</h3>
+
+  <p>
+    MPV supporte officiellement SRT depuis le 16 octobre 2020.
+    Néanmoins, la version stable de MPV est beaucoup plus vieille.
+    Vous devez alors utiliser une version de développement pour
+    pouvoir lire un flux SRT depuis MPV. L'installation se fait
+    depuis <a href="https://mpv.io/installation/"> cette page</a>.
+    Sous Arch Linux, il vous suffit de récupérer le paquet
+    <code>mpv-git</code> dans l'AUR. Pour lire le flux, il suffit
+    d'exécuter :
+  </p>
+
+  <p>
+    <code>
+      mpv srt://{{.Cfg.Hostname}}:{{.Cfg.SRTServerPort}}?streamid=IDENTIFIANT
+    </code>
+  </p>
+
+  <h3>VLC Media Player</h3>
+
+  <p>
+    Bien que VLC supporte officiellement le protocole SRT,
+    toutes les options ne sont pas encore implémentées,
+    notamment l'option pour choisir son stream.
+    Cette option n'est supportée que dans la version de développement
+    depuis très récemment, grâce à un patch de l'un des développeurs
+    de Ghostream.  Sous Arch Linux, il suffit de récupérer
+    le paquet <code>vlc-git</code> de l'AUR. Avec un VLC à jour,
+    il suffit d'exécuter :
+  </p>
+
+  <p>
+    <code>
+      vlc srt://{{.Cfg.Hostname}}:{{.Cfg.SRTServerPort}}?streamid=IDENTIFIANT
+    </code>
+  </p>
+
+  <p>
+    Ou bien d'aller dans Média -> Ouvrir un flux réseau et d'entrer l'URL
+    <code>srt://{{.Cfg.Hostname}}:{{.Cfg.SRTServerPort}}?streamid=IDENTIFIANT</code>.
+  </p>
+
+  <h3>Le protocole n'existe pas ou n'est pas supporté.</h3>
+  <p>
+    La technologie SRT est très récente et n'est pas supportée par
+    les dépôts stables. Ainsi, si vous avez Ubuntu &le; 20.04 ou
+    Debian &le; Buster, vous ne pourrez pas utiliser de lecteur vidéo
+    ni même diffuser avec votre machine. Vous devrez vous mettre à
+    jour vers Ubuntu 20.10 ou Debian Bullseye.
+  </p>
+
   <h2>Mentions légales</h2>
   <p>
     Le service de diffusion vidéo du Crans est un service d'hébergement
     au sens de l'article 6, I, 2e de la loi 2004-575 du 21 juin 2004.
     Conformément aux dispositions de l'article 6, II du même,
-    l'association Crans conserve les données de nature à permettre
+     conserve les données de nature à permettre
     l'identification des auteurs du contenu diffusé.
-    Ce service est hébergé par l'association Crans, au
-    61 Avenue du Président Wilson, 94235 Cachan Cedex, France.
+    Ce service est hébergé par {{.Cfg.LegalMentionsEntity}}, au
+    {{.Cfg.LegalMentionsAddress}}.
   </p>
   <p>
     <b>En cas de réclamation sur le contenu diffusé</b>,
     la loi vous autorise à contacter directement l'hébergeur à
     l'adresse suivante :
-    <pre>Association Cr@ns - ENS Paris-Saclay<br/>Notification de Contenus Illicites<br/>4, avenue des Sciences<br/>91190 Gif-sur-Yvette<br/>France</pre>
+    <pre>{{range $i, $element := .Cfg.LegalMentionsFullAddress}}{{$element}}<br/>{{end}}</pre>
     Vous pouvez également envoyer directement vos réclamations par
-    courrier électronique à l'adresse <code>bureau[at]crans.org</code>.
+    courrier électronique à l'adresse <code>{{.Cfg.LegalMentionsEmail}}</code>.
   </p>
 </div>
 {{end}}

web/template/player.html

@@ -6,14 +6,14 @@
 
     <!-- Links and settings under video -->
     <div class="controls">
-      <span class="control-quality">
+      <!-- <span class="control-quality">
         <select id="quality">
-          <option value="">Source</option>
-          <option value="@720p">720p</option>
-          <option value="@480p">480p</option>
-          <option value="@240p">240p</option>
+          <option value="source">Source</option>
+          <option value="720p">720p</option>
+          <option value="480p">480p</option>
+          <option value="240p">240p</option>
         </select>  
-      </span>
+      </span> -->
       <code class="control-srt-link">srt://{{.Cfg.Hostname}}:{{.Cfg.SRTServerPort}}?streamid={{.Path}}</code>
       <span class="control-viewers" id="connected-people">0</span>
       <svg class="control-indicator" id="connectionIndicator" fill="#dc3545" width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg">
@@ -34,21 +34,31 @@
   {{end}}
 </div>
 
-{{if .WidgetURL}}<script src="/static/js/sideWidget.js"></script>{{end}}
-<script src="/static/js/videoQuality.js"></script>
-<script src="/static/js/viewer.js"></script>
-<script src="/static/js/viewersCounter.js"></script>
-<script>
+{{if .OMECfg.Enabled}}
+  <script src="https://cdn.jsdelivr.net/npm/hls.js@latest"></script>
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/dashjs/2.9.3/dash.all.min.js"></script>
+  <script src="/static/ovenplayer/ovenplayer.js"></script>
+  <script src="/static/js/ovenplayer.js"></script>
+{{end}}
+<script type="module">
+  {{if .OMECfg.Enabled}}
+    import { initViewerPage } from "/static/js/ovenplayer.js";
+  {{else}}
+    import { initViewerPage } from "/static/js/viewer.js";
+  {{end}}
+
+  // Some variables that need to be fixed by web page
+  const viewersCounterRefreshPeriod = Number("{{.Cfg.ViewersCounterRefreshPeriod}}");
+  const stream = "{{.Path}}";
   const stunServers = [
     {{range $id, $value := .Cfg.STUNServers}}
-    '{{$value}}',
+    "{{$value}}",
     {{end}}
   ]
-  startPeerConnection()
-
-  // Wait a bit before pulling viewers counter for the first time
-  setTimeout(() => {
-      refreshViewersCounter("{{.Path}}", {{.Cfg.ViewersCounterRefreshPeriod}})
-  }, 1000)
+  {{if .OMECfg.Enabled}}
+    initViewerPage(stream, {{.OMECfg.App}}, viewersCounterRefreshPeriod, {{.Cfg.PlayerPoster}})
+  {{else}}
+    initViewerPage(stream, stunServers, viewersCounterRefreshPeriod)
+  {{end}}
 </script>
-{{end}}
+{{end}}

web/web.go

@@ -2,6 +2,7 @@
 package web
 
 import (
+	"gitlab.crans.org/nounous/ghostream/stream/ovenmediaengine"
 	"html/template"
 	"io/ioutil"
 	"log"
@@ -10,8 +11,7 @@ import (
 	"strings"
 
 	"github.com/markbates/pkger"
-	"github.com/pion/webrtc/v3"
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 // Options holds web package configuration
@@ -28,23 +28,22 @@ type Options struct {
 	STUNServers                 []string
 	ViewersCounterRefreshPeriod int
 	WidgetURL                   string
+	LegalMentionsEntity         string
+	LegalMentionsAddress        string
+	LegalMentionsFullAddress    []string
+	LegalMentionsEmail          string
 }
 
 var (
 	cfg *Options
 
-	// WebRTC session description channels
-	remoteSdpChan chan struct {
-		StreamID          string
-		RemoteDescription webrtc.SessionDescription
-	}
-	localSdpChan chan webrtc.SessionDescription
+	omeCfg *ovenmediaengine.Options
 
 	// Preload templates
 	templates *template.Template
 
 	// Streams to get statistics
-	streams map[string]*stream.Stream
+	streams *messaging.Streams
 )
 
 // Load templates with pkger
@@ -78,14 +77,10 @@ func loadTemplates() error {
 }
 
 // Serve HTTP server
-func Serve(s map[string]*stream.Stream, rSdpChan chan struct {
-	StreamID          string
-	RemoteDescription webrtc.SessionDescription
-}, lSdpChan chan webrtc.SessionDescription, c *Options) {
+func Serve(s *messaging.Streams, c *Options, ome *ovenmediaengine.Options) {
 	streams = s
-	remoteSdpChan = rSdpChan
-	localSdpChan = lSdpChan
 	cfg = c
+	omeCfg = ome
 
 	if !cfg.Enabled {
 		// Web server is not enabled, ignore
@@ -101,6 +96,7 @@ func Serve(s map[string]*stream.Stream, rSdpChan chan struct {
 	mux := http.NewServeMux()
 	mux.HandleFunc("/", viewerHandler)
 	mux.Handle("/static/", staticHandler())
+	mux.HandleFunc("/_ws/", websocketHandler)
 	mux.HandleFunc("/_stats/", statisticsHandler)
 	log.Printf("HTTP server listening on %s", cfg.ListenAddress)
 	log.Fatal(http.ListenAndServe(cfg.ListenAddress, mux))

web/web_test.go

@@ -5,16 +5,16 @@ import (
 	"testing"
 	"time"
 
-	"gitlab.crans.org/nounous/ghostream/stream"
+	"gitlab.crans.org/nounous/ghostream/messaging"
 )
 
 // TestHTTPServe tries to serve a real HTTP server and load some pages
 func TestHTTPServe(t *testing.T) {
 	// Init streams messaging
-	streams := make(map[string]*stream.Stream)
+	streams := messaging.New()
 
 	// Create a disabled web server
-	go Serve(streams, nil, nil, &Options{Enabled: false, ListenAddress: "127.0.0.1:8081"})
+	go Serve(streams, &Options{Enabled: false, ListenAddress: "127.0.0.1:8081"})
 
 	// Sleep 500ms to ensure that the web server is running, to avoid fails because the request came too early
 	time.Sleep(500 * time.Millisecond)
@@ -26,7 +26,7 @@ func TestHTTPServe(t *testing.T) {
 	}
 
 	// Now let's really start the web server
-	go Serve(streams, nil, nil, &Options{Enabled: true, ListenAddress: "127.0.0.1:8081"})
+	go Serve(streams, &Options{Enabled: true, ListenAddress: "127.0.0.1:8081"})
 
 	// Sleep 500ms to ensure that the web server is running, to avoid fails because the request came too early
 	time.Sleep(500 * time.Millisecond)

web/websocket_handler.go

@@ -0,0 +1,68 @@
+// Package web serves the JavaScript player and WebRTC negotiation
+package web
+
+import (
+	"log"
+	"net/http"
+
+	"github.com/gorilla/websocket"
+	"gitlab.crans.org/nounous/ghostream/stream/webrtc"
+)
+
+var upgrader = websocket.Upgrader{
+	ReadBufferSize:  1024,
+	WriteBufferSize: 1024,
+}
+
+// clientDescription is sent by new client
+type clientDescription struct {
+	WebRtcSdp webrtc.SessionDescription
+	Stream    string
+	Quality   string
+}
+
+// websocketHandler exchanges WebRTC SDP and viewer count
+func websocketHandler(w http.ResponseWriter, r *http.Request) {
+	// Upgrade client connection to WebSocket
+	conn, err := upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		log.Printf("Failed to upgrade client to websocket: %s", err)
+		return
+	}
+
+	for {
+		// Get client description
+		c := &clientDescription{}
+		err = conn.ReadJSON(c)
+		if err != nil {
+			log.Printf("Failed to receive client description: %s", err)
+			_ = conn.Close()
+			return
+		}
+
+		// Get requested stream
+		stream, err := streams.Get(c.Stream)
+		if err != nil {
+			log.Printf("Stream not found: %s", c.Stream)
+			continue
+		}
+
+		// Get requested quality
+		q, err := stream.GetQuality(c.Quality)
+		if err != nil {
+			log.Printf("Quality not found: %s", c.Quality)
+			continue
+		}
+
+		// Exchange session descriptions with WebRTC stream server
+		// FIXME: Add trickle ICE support
+		q.WebRtcRemoteSdp <- c.WebRtcSdp
+		localDescription := <-q.WebRtcLocalSdp
+
+		// Send new local description
+		if err := conn.WriteJSON(localDescription); err != nil {
+			log.Println(err)
+			continue
+		}
+	}
+}