### Install ktlint with curl

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/rtp/README.md

Installs the ktlint command-line utility using curl. Ensure you have execute permissions and move the binary to a system-wide location.

```bash
curl -sSLO https://github.com/pinterest/ktlint/releases/download/0.34.2/ktlint && chmod a+x ktlint && sudo mv ktlint /usr/local/bin/
```

--------------------------------

### Example curl command with jq

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Demonstrates how to fetch debug information and parse it using `jq`.

```bash
curl http://localhost:8080/debug | jq .
```

--------------------------------

### Install ktlint with curl

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/jitsi-media-transform/README.md

Install the ktlint command-line utility using curl. This command downloads the utility, makes it executable, and moves it to a system-wide location.

```bash
curl -sSLO https://github.com/pinterest/ktlint/releases/download/0.39.0/ktlint && chmod a+x ktlint && sudo mv ktlint /usr/local/bin/
```

--------------------------------

### Install ktlint with Homebrew

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/jitsi-media-transform/README.md

Install the ktlint command-line utility on macOS using Homebrew. This is a convenient alternative for users who manage their development tools with Homebrew.

```bash
brew install ktlint
```

--------------------------------

### Example Advertised Colibri WebSocket URL

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/web-sockets.md

An example of the Colibri WebSocket URL that should be advertised to clients, visible in the JavaScript console logs under 'session-initiate'. Verify this URL is correct and routes to the appropriate Jitsi Videobridge instance.

```xml
<web-socket xmlns="http://jitsi.org/protocol/colibri" url="wss://meet-jit-si-eu-west-2b-s5-jvb-51.jitsi.net:443/colibri-ws/default-id/4f9cb343985d4779/c814b6a6?pwd=23btmrjol5i83thk1t9s78bnkk"/>
```

--------------------------------

### Stage View Example 2: Multiple Sources with High Definition

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/allocation.md

Sets up a stage view where 'A-v0' is in high definition, 'B-v0', 'C-v0', and 'D-v0' are in 180p, and all other sources are disabled. This uses explicit constraints for each specified source and a default constraint of 0 maxHeight.

```json
{
  "colibriClass": "ReceiverVideoConstraints",
  "onStageSources": ["A-v0"],
  "defaultConstraints": { "maxHeight":  0 },
  "constraints": {
    "A-v0": { "maxHeight": 720 },
    "B-v0": { "maxHeight": 180 },
    "C-v0": { "maxHeight": 180 },
    "D-v0": { "maxHeight": 180 }
  }
}
```

--------------------------------

### Legacy Endpoint ID Format Example

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/allocation.md

Example of the old message format using endpoint IDs instead of source names. Supports `selectedEndpoints` and `onStageEndpoints`.

```json
{
  "colibriClass": "ReceiverVideoConstraints",
  "lastN": 2,
  "selectedEndpoints": ["A", "B"],
  "onStageEndpoints": ["C", "D"],
  "defaultConstraints": { "maxHeight":  180 },
  "constraints": {
    "A": { "maxHeight": 720 },
    "B": { "maxHeight": 360 }
  }
}
```

--------------------------------

### Stage View Example 1: High Definition on Stage

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/allocation.md

Configures stage view with source 'A-v0' in high definition and all other sources limited to 180p. This is achieved by setting specific constraints for 'A-v0' and a default constraint for others.

```json
{
  "colibriClass": "ReceiverVideoConstraints",
  "onStageSources": ["A-v0"],
  "defaultConstraints": { "maxHeight":  180 },
  "constraints": {
    "A-v0": { "maxHeight": 720 }
  }
}
```

--------------------------------

### Install ktlint Git pre-commit hook

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/jitsi-media-transform/README.md

Set up a Git pre-commit hook to automatically run ktlint checks before each commit. This ensures code style consistency across the project.

```bash
ktlint --install-git-pre-commit-hook
```

--------------------------------

### Nginx Proxy Configuration for Secure-Octo Relay WebSockets

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/web-sockets.md

Example Nginx configuration to proxy secure-octo relay WebSocket connections for two Jitsi Videobridge instances (jvb1 and jvb2).

```nginx
   # colibri secure-octo relay websockets for jvb1
   location ~ ^/colibri-relay-ws/jvb1/(.*) {
       proxy_pass http://127.0.0.1:9090/colibri-relay-ws/jvb1/$1$is_args$args;
       proxy_http_version 1.1;
       proxy_set_header Upgrade $http_upgrade;
       proxy_set_header Connection "upgrade";
       tcp_nodelay on;
   }
   location ~ ^/colibri-relay-ws/jvb2/(.*) {
       proxy_pass http://127.0.0.1:9091/colibri-relay-ws/jvb2/$1$is_args$args;
       proxy_http_version 1.1;
       proxy_set_header Upgrade $http_upgrade;
       proxy_set_header Connection "upgrade";
       proxy_set_header Host alpha.jitsi.net;
       tcp_nodelay on;
   }
```

--------------------------------

### List XMPP Client Connections

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest-muc-client.md

Lists the IDs of all previously added XMPP client connections using a GET request to the /colibri/muc-client/list endpoint.

```APIDOC
## GET /colibri/muc-client/list

### Description
Retrieves a list of IDs for all configured XMPP client connections.

### Method
GET

### Endpoint
/colibri/muc-client/list

### Response
#### Success Response (200)
Returns a list of strings, where each string is the ID of an XMPP client connection.
```

--------------------------------

### Nginx Proxy Configuration for Colibri WebSockets

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/web-sockets.md

Example Nginx configuration to proxy WebSocket connections for two Jitsi Videobridge instances (jvb1 and jvb2) running on different ports without TLS.

```nginx
   # colibri (JVB) websockets for jvb1
   location ~ ^/colibri-ws/jvb1/(.*) {
       proxy_pass http://127.0.0.1:9090/colibri-ws/jvb1/$1$is_args$args;
       proxy_http_version 1.1;
       proxy_set_header Upgrade $http_upgrade;
       proxy_set_header Connection "upgrade";
       tcp_nodelay on;
   }
   location ~ ^/colibri-ws/jvb2/(.*) {
       proxy_pass http://127.0.0.1:9091/colibri-ws/jvb2/$1$is_args$args;
       proxy_http_version 1.1;
       proxy_set_header Upgrade $http_upgrade;
       proxy_set_header Connection "upgrade";
       proxy_set_header Host alpha.jitsi.net;
       tcp_nodelay on;
   }
```

--------------------------------

### Update Endpoint with Transport and Sources Request Body

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest-colibri2.md

This example shows how to update an endpoint with its transport details and associated media sources. It includes ICE candidates, web socket information, and fingerprints for secure communication.

```json
{
  "endpoints": [
    {
      "id":"79f0273e",
      "transport": {
        "transport": {
          "candidates": [
            {
              "generation": "0",
              "rel-port": "9",
              "component": "1",
              "protocol": "udp",
              "port": "10000",
              "ip": "129.80.210.199",
              "foundation": "2",
              "id": "653aa1ba295b62480ffffffffdc52c0d9",
              "rel-addr": "0.0.0.0",
              "priority": "1694498815",
              "type": "srflx",
              "network": "0"
            }
          ],
          "xmlns": "urn:xmpp:jingle:transports:ice-udp:1",
          "ufrag": "2ivqh1fvtf0l3h",
          "rtcp-mux": true,
          "pwd": "1a5ejbent91k6io6a3fauikg22",
          "web-sockets": [
            "wss://beta-us-ashburn-1-global-2808-jvb-83-102-26.jitsi.net:443/colibri-ws/default-id/3d937bbdf97a23e0/79f0273e?pwd=1a5ejbent91k6io6a3fauikg22"
          ],
          "fingerprints": [
            {
              "fingerprint": "2E:CC:85:71:32:5B:B5:60:64:C8:F6:7B:6D:45:D4:34:2B:51:A0:06:B5:EA:2F:84:BC:7B:64:1F:A3:0A:69:23",
              "setup": "actpass",
              "hash": "sha-256",
              "cryptex": true
            }
          ]
        }
      }
    }
  ],
  "sources": [
    {
      "type": "audio",
      "id": "jvb-a0",
      "sources": [
        { "ssrc":411312308, "name": "jvb-a0", "parameters": { "msid": "mixedmslabel mixedlabelaudio0" } }
      ]
    },
    {
      "type": "video",
      "id": "jvb-v0",
      "sources": [
        { "ssrc":3929652146, "name": "jvb-v0", "parameters": { "msid": "mixedmslabel mixedlabelvideo0" } }
      ]
    }
  ]
}
```

--------------------------------

### List XMPP Client Connection IDs

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest-muc-client.md

Retrieve a list of IDs for all previously added XMPP client connections by making a GET request to the /colibri/muc-client/list endpoint.

--------------------------------

### Colibri2 JSON Structure Example

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest-colibri2.md

This JSON structure represents conference data, including transport details, web sockets, and fingerprints. It is used in Colibri2 API requests.

```json
{
    "conference": {
        "id": "79f0273d",
        "participants": [
            {
                "id": "79f0273e",
                "colibriClass": "participant",
                "state": "active",
                "lastN": 80,
                "channels": [
                    {
                        "id": "79f0273d",
                        "colibriClass": "channel",
                        "state": "active",
                        "content": "audio",
                        "transport": {
                            "transport": {
                                "candidates": [
                                    {
                                        "generation": "0",
                                        "rel-port": "10000",
                                        "component": "1",
                                        "protocol": "udp",
                                        "port": "10000",
                                        "ip": "152.58.154.133",
                                        "foundation": "2",
                                        "id": "c6ac5101f870f0ffffffffcb50fcba",
                                        "rel-addr": "172.18.0.4",
                                        "priority": "1694498815",
                                        "type": "srflx",
                                        "network": "0"
                                    },
                                    {
                                        "generation": "0",
                                        "rel-port": "10000",
                                        "component": "1",
                                        "protocol": "udp",
                                        "port": "10000",
                                        "ip": "152.58.154.133",
                                        "foundation": "2",
                                        "id": "c6ac5101f870f0ffffffffcb50fcba",
                                        "rel-addr": "172.18.0.4",
                                        "priority": "1694498815",
                                        "type": "srflx",
                                        "network": "0"
                                    }
                                ],
                                "xmlns": "urn:xmpp:jingle:transports:ice-udp:1",
                                "ufrag": "26ant1ioqu7qnr",
                                "rtcp-mux": true,
                                "pwd": "9q8uj7tg6j4rc4i6ulc1pmsq9",
                                "web-sockets": [
                                    "wss://localhost:8443/colibri-ws/172.18.0.4/7e441eda3701676e/79f0273d?pwd=9q8uj7tg6j4rc4i6ulc1pmsq9"
                                ],
                                "fingerprints": [
                                    {
                                        "fingerprint": "F1:05:72:F8:F3:F4:B4:65:5B:9A:FC:81:24:11:23:78:D5:42:54:B1:F2:66:2F:82:CC:2B:01:1C:DB:98:BE:C0",
                                        "setup": "actpass",
                                        "hash": "sha-256"
                                    }
                                ]
                            }
                        }
                    }
                ],
                "sources": [
                    {
                        "sources": [
                            {
                                "ssrc": 3191927963,
                                "name": "jvb-a0"
                            }
                        ],
                        "id": "jvb-a0",
                        "type": "audio"
                    },
                    {
                        "sources": [
                            {
                                "ssrc": 1863439907,
                                "name": "jvb-v0"
                            }
                        ],
                        "id": "jvb-v0",
                        "type": "video"
                    }
                ]
            }
        ]
    }
}
```

--------------------------------

### Get Full Conference State via Jicofo Debug Interface

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/relay.md

Retrieve the complete state of a specific conference by providing its ID to the Jicofo debug interface. Remember to escape the '@' symbol in the conference ID.

```bash
curl "http://localhost:8888/debug/conference/test\@conference.example.com" | jq .
```

--------------------------------

### Tile View: 180p and 15fps

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/allocation.md

Configure tile view for all sources to be in 180p resolution and 15 frames per second.

```json
{
  "colibriClass": "ReceiverVideoConstraints",
  "defaultConstraints": { "maxHeight":  180, "maxFrameRate": 15 }
}
```

--------------------------------

### Build the entire Jitsi Videobridge project

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

Use this command to build the complete project using Maven. It compiles all modules and runs tests.

```bash
mvn install
```

--------------------------------

### Get Dominant Speaker Endpoint

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Fetches the dominant speaker identification for a given meeting.

```http
GET /colibri/v2/conferences/{meetingId}/dominant-speaker-identification
```

--------------------------------

### Tile View: 360p

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/allocation.md

Configure tile view for all sources to be in 360p resolution.

```json
{
  "colibriClass": "ReceiverVideoConstraints",
  "defaultConstraints": { "maxHeight":  360 }
}
```

--------------------------------

### Get Endpoint State

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves the full state of a specific endpoint within a specific conference.

```APIDOC
## GET /debug/CONFERENCE_ID/ENDPOINT_ID

### Description
This includes the full state of a specific endpoint in a specific conference.

### Method
GET

### Endpoint
/debug/CONFERENCE_ID/ENDPOINT_ID

### Parameters
#### Path Parameters
- **CONFERENCE_ID** (string) - Required - The ID of the conference.
- **ENDPOINT_ID** (string) - Required - The ID of the endpoint.
```

--------------------------------

### Multi-Stage View: Two On-Stage Sources

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/allocation.md

Configure multi-stage view with two on-stage sources in high definition and up to 4 other sources in 180p.

```json
{
  "colibriClass": "ReceiverVideoConstraints",
  "onStageSources": ["A-v0", "B-v0"],
  "lastN": 6,
  "defaultConstraints": { "maxHeight":  180 },
  "constraints": {
    "A-v0": { "maxHeight":  720 },
    "B-v0": { "maxHeight":  720 }
  }
}
```

--------------------------------

### Tile View: Selective Enabling

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/allocation.md

Configure tile view to disable all sources by default and then selectively enable specific sources at 180p.

```json
{
  "colibriClass": "ReceiverVideoConstraints",
  "defaultConstraints": { "maxHeight":  0 },
  "constraints": {
    "A-v0": { "maxHeight":  180 },
    "B-v0": { "maxHeight":  180 },
    "C-v0": { "maxHeight":  180 }
  }
}
```

--------------------------------

### Get Full State for Specific Endpoint

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves the complete state for a specific endpoint within a specific conference.

```http
GET /debug/CONFERENCE_ID/ENDPOINT_ID
```

--------------------------------

### Get Statistics via REST API

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/statistics.md

Access statistics in JSON format from the /colibri/stats endpoint. A cached version is returned, configurable by videobridge.stats.interval.

```json
{
  "key": "value"
}
```

--------------------------------

### Run all tests in Jitsi Videobridge

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

Execute all unit and integration tests for the Jitsi Videobridge project using Maven.

```bash
mvn test
```

--------------------------------

### Build Jitsi Videobridge package

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

This Maven command creates an archive (zip file) of the Jitsi Videobridge application, typically found in the 'jvb/target/' directory.

```bash
mvn install
# Output: jvb/target/jitsi-videobridge-2.3-SNAPSHOT-archive.zip
```

--------------------------------

### Configure Public HTTP Server (With TLS)

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/web-sockets.md

Configure the publicly-accessible HTTP server with TLS on port 443, specifying keystore path and password.

```java
videobridge {
    http-servers {
        public {
            tls-port = 443
            key-store-path=/etc/jitsi/videobridge/ssl.store
            key-store-password=KEY_STORE_PASSWORD
        }
    }
}
```

--------------------------------

### Get Dominant Speaker Identification

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest-colibri2.md

Retrieves information about dominant speaker identification within a conference, including endpoints by speech activity, dominant endpoint, and endpoints in last N order.

```APIDOC
## GET /colibri/v2/conferences/{meetingId}/dominant-speaker-identification

### Description
Retrieves dominant speaker identification data for a given conference.

### Method
GET

### Endpoint
/colibri/v2/conferences/{meetingId}/dominant-speaker-identification

### Parameters
#### Path Parameters
- **meetingId** (string) - Required - The ID of the conference.

### Response
#### Success Response (200)
- **endpointsBySpeechActivity** (array) - A list of endpoint IDs active in speech.
- **dominantEndpoint** (string) - The ID of the dominant speaker endpoint.
- **endpointsInLastNOrder** (array) - A list of endpoint IDs in the order they were last active.
- **dominantSpeakerIdentification** (object | null) - Detailed dominant speaker identification data, or null if not available.

### Response Example
```json
{
    "endpointsBySpeechActivity": [
        "79f0273d"
    ],
    "dominantSpeakerIdentification": null,
    "endpointsInLastNOrder": [
        "79f0273d"
    ],
    "dominantEndpoint": "null"
}
```
```

--------------------------------

### Configure Jitsi Videobridge JVM Options on Debian

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/README.md

Set Java Virtual Machine (JVM) options for Jitsi Videobridge on Debian-based systems using the `/etc/jitsi/videobridge/config` file. These settings override defaults.

```commandline
# Increase the java heap to 8GB
VIDEOBRIDGE_MAX_MEMORY=8192m
# Change the garbage collector (defaults to G1GC)
VIDEOBRIDGE_GC_TYPE=G1GC
```

--------------------------------

### Run Jitsi Videobridge Locally with Maven

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/README.md

Execute Jitsi Videobridge locally using Maven. Ensure a `~/.jvb/jvb.conf` file is created for configuration. This command sets up necessary Java system properties and library paths.

```sh
JVB_HOME="/path/to/the/cloned/repo"
JVB_CONFIG_DIR_LOCATION="~/
JVB_CONFIG_DIR_NAME=".jvb"
JVB_CONFIG_FILE="$JVB_CONFIG_DIR_LOCATION/$JVB_JVB_CONFIG_DIR_NAME/jvb.conf"

mvn compile exec:exec -Dexec.executable=java -Dexec.args="-cp %classpath org.jitsi.videobridge.MainKt -Djava.library.path=$JVB_HOME/lib/native/linux-64 -Djava.util.logging.config.file=$JVB_HOME/lib/logging.properties -Dnet.java.sip.communicator.SC_HOME_DIR_LOCATION=$JVB_CONFIG_DIR_LOCATION -Dnet.java.sip.communicator.SC_HOME_DIR_NAME=$JVB_CONFIG_DIR_NAME -Dconfig.file=$JVB_CONFIG_FILE"
```

--------------------------------

### Stage View: High Definition and 180p

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/allocation.md

Configure stage view with one source in high definition and others in 180p. Disabled sources are set to 0 height.

```json
{
  "colibriClass": "ReceiverVideoConstraints",
  "onStageSources": ["A-v0"],
  "defaultConstraints": { "maxHeight":  180 },
  "constraints": {
    "A-v0": { "maxHeight": 720 },
    "B-v0": { "maxHeight": 0 },
    "C-v0": { "maxHeight": 0 },
    "D-v0": { "maxHeight": 0 }
  }
}
```

--------------------------------

### Get Dominant Speaker Identification

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest-colibri2.md

Retrieves information about speech activity and dominant speakers in a conference. The response includes lists of endpoints by speech activity, in last N order, and the dominant endpoint if identified.

```json
{
    "endpointsBySpeechActivity": [
        "79f0273d"
    ],
    "dominantSpeakerIdentification": null,
    "endpointsInLastNOrder": [
        "79f0273d"
    ],
    "dominantEndpoint": "null"
}
```

--------------------------------

### Map Old to New Configuration Properties

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CONFIG.md

This table shows the mapping from old `sip-communicator.properties` or program argument names to the new configuration property names used in `reference.conf` and `application.conf`.

```plaintext
org.jitsi.videobridge.health.INTERVAL | videobridge.health.interval
```

```plaintext
org.jitsi.videobridge.health.TIMEOUT | videobridge.health.timeout
```

```plaintext
org.jitsi.videobridge.health.STICKY_FAILURES | videobridge.health.sticky-failures
```

```plaintext
org.jitsi.videobridge.EndpointConnectionStatus.FIRST_TRANSFER_TIMEOUT | videobridge.ep-connection-status.first-transfer-timeout
```

```plaintext
org.jitsi.videobridge.EndpointConnectionStatus.MAX_INACTIVITY_LIMIT | videobridge.ep-connection-status.max-inactivity-limit
```

```plaintext
org.jitsi.videobridge.BWE_CHANGE_THRESHOLD_PCT | videobridge.cc.bwe-change-threshold-pct
```

```plaintext
org.jitsi.videobridge.THUMBNAIL_MAX_HEIGHT | videobridge.cc.thumbnail-max-height-px
```

```plaintext
org.jitsi.videobridge.ONSTAGE_PREFERRED_HEIGHT | videobridge.cc.onstage-preferred-height-px
```

```plaintext
org.jitsi.videobridge.ONSTAGE_PREFERRED_FRAME_RATE | videobridge.cc.onstage-preferred-framerate
```

```plaintext
org.jitsi.videobridge.ENABLE_ONSTAGE_VIDEO_SUSPEND | videobridge.cc.enable-onstage-video-suspend
```

```plaintext
org.jitsi.videobridge.TRUST_BWE | videobridge.cc.trust-bwe
```

```plaintext
org.jitsi.videobridge.PADDING_PERIOD_MS | videobridge.cc.padding-period
```

```plaintext
org.jitsi.videobridge.DISABLE_RTX_PROBING | n/a
```

```plaintext
org.jitsi.videobridge.rest.COLIBRI_WS_DISABLE | videobridge.websockets.enabled
```

```plaintext
org.jitsi.videobridge.rest.COLIBRI_WS_DOMAIN | videobridge.websockets.domain
```

```plaintext
org.jitsi.videobridge.rest.COLIBRI_WS_TLS | videobridge.websockets.tls
```

```plaintext
org.jitsi.videobridge.rest.COLIBRI_WS_SERVER_ID | videobridge.websockets.server-id
```

```plaintext
org.jitsi.videobridge.SINGLE_PORT_HARVESTER_PORT | videobridge.ice.udp.port
```

```plaintext
org.jitsi.videobridge.ICE_UFRAG_PREFIX | videobridge.ice.ufrag-prefix
```

```plaintext
org.jitsi.videobridge.KEEP_ALIVE_STRATEGY | videobridge.ice.keep-alive-strategy
```

--------------------------------

### Run tests in a specific Jitsi Videobridge module

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

Navigate to a specific module directory (e.g., 'jvb') and then run tests using Maven.

```bash
cd jvb && mvn test
```

--------------------------------

### Tile View: Prioritized and Disabled Sources

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/allocation.md

Configure tile view with specific sources prioritized and others disabled. Sources with maxHeight 0 are disabled.

```json
{
  "colibriClass": "ReceiverVideoConstraints",
  "selectedSources": ["A-v0", "B-v0"],
  "defaultConstraints": { "maxHeight":  180 },
  "constraints": {
    "C-v0": { "maxHeight":  0 },
    "D-v0": { "maxHeight":  0 }
  }
}
```

--------------------------------

### Run Checkstyle for Java code formatting

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

Execute the Checkstyle Maven plugin to verify Java code adheres to formatting and style rules defined in 'jvb/checkstyle.xml'.

```bash
mvn checkstyle:check
```

--------------------------------

### Register XMPP User for Prosody

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/muc.md

Use this command to register a user account on a Prosody XMPP server that will be shared by Jitsi Videobridge instances.

```bash
prosodyctl register jvb $DOMAIN $PASSWORD
```

--------------------------------

### Run Module-Specific Tests with Maven

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

Execute tests for individual modules within the Jitsi Videobridge project using Maven. Ensure you navigate to the respective module directory before running the test command.

```bash
cd jvb && mvn test
```

```bash
cd jitsi-media-transform && mvn test
```

```bash
cd rtp && mvn test
```

--------------------------------

### Configure Jitsi Videobridge Relay Settings

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/relay.md

Enable relay functionality and specify the region and a unique ID for the Jitsi Videobridge instance in its configuration file.

```properties
videobridge {
  relay {
    enabled=true
    region="region1"
    relay-id="unique-id-of-the-jitsi-videobridge-instance"
  }
}
```

--------------------------------

### Version Information

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves the currently running version of the Jitsi Videobridge instance.

```APIDOC
## GET /about/version

### Description
Returns the currently running version.

### Method
GET

### Endpoint
/about/version
```

--------------------------------

### Configure XMPP Client for MUC in Videobridge

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/muc.md

Set up XMPP client configurations within the 'videobridge' config. This includes connecting to XMPP servers, specifying domains, usernames, passwords, MUC JIDs, and unique MUC nicknames for each instance.

```hocon
apis {
  xmpp-client {
    configs {
      # Connect to the first XMPP server
      xmpp-server-1 {
        hostname="example.net"
        domain = "auth.example.net"
        username = "jvb"
        password = "$PASSWORD"
        muc_jids = "JvbBrewery@internal.auth.example.net"
        # The muc_nickname must be unique across all jitsi-videobridge instances
        muc_nickname = "unique-instance-id"
        # disable_certificate_verification = true
      }
      # Connect to a second XMPP server
      xmpp-server-2 {
        hostname="another.example.net"
        domain = "auth.example.net"
        username = "jvb"
        password = "$PASSWORD"
        muc_jids = "JvbBrewery@internal.auth.example.net"
        # The muc_nickname must be unique across all jitsi-videobridge instances
        muc_nickname = "unique-instance-id2"
        # disable_certificate_verification = true
      }
    }
  }
}
```

--------------------------------

### Add XMPP Client Connection Configuration

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest-muc-client.md

Post a JSON object with the new MucClient configuration to the /colibri/muc-client/add endpoint. If a configuration with the same ID exists, it will be updated if hostname, port, domain, and username match; otherwise, the existing client is removed and a new one is added.

```json
{
  "id": "new-client-connection",
  "domain":"xmpp.example.com",
  "hostname":"10.0.0.1",
  "username":"xmpp-username",
  "password":"xmpp-password",
  "muc_jids":"JvbBrewery@conference.xmpp.example.com",
  "muc_nickname":"unique-resource",
  "disable_certificate_verification":"false"
}
```

--------------------------------

### Enable Verbose Logging for ICE Candidates

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/network-configuration.md

Configure logging properties to enable verbose logging for ICE candidate verification. This helps in inspecting the ICE candidates being sent by the Videobridge.

```properties
org.jitsi.videobridge.xmpp.XmppConnection.level=ALL
```

--------------------------------

### Build Jitsi Videobridge project without running tests

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

This Maven command builds the project but skips the execution of all tests, which can speed up the build process.

```bash
mvn install -DskipTests
```

--------------------------------

### Auto-format Kotlin code using ktlint

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

Apply automatic formatting to Kotlin code based on ktlint conventions. This command requires execution from within a submodule directory, like './jvb/'.

```bash
mvn ktlint:format
```

--------------------------------

### Autoformat Code with Maven

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/rtp/README.md

Runs ktlint for autoformatting using Maven. This command applies formatting rules to your project's code.

```bash
mvn antrun:run@ktlint-format
```

--------------------------------

### Configure Public HTTP Interface

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest.md

Configures the public HTTP interface for Jitsi-Videobridge, which is used for Colibri Web Sockets. Uses the same settings as the private interface.

```hocon
videobridge {
    http-servers {
        public {
            // Same values as above
        }
    }
}
```

--------------------------------

### Configure Public HTTP Server (No TLS)

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/web-sockets.md

Configure the publicly-accessible HTTP server on port 9090 without TLS.

```java
videobridge {
    http-servers {
        public {
            port = 9090
        }
    }
}
```

--------------------------------

### Stage View: Prioritized Source

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/allocation.md

Configure stage view with a prioritized source in high definition and others in 180p. Allows specifying selected endpoints for higher priority.

```json
{
  "colibriClass": "ReceiverVideoConstraints",
  "onStageEndpoints": ["A-v0"],
  "selectedEndpoints": ["D-v0"],
  "defaultConstraints": { "maxHeight":  180 },
  "constraints": {
    "A-v0": { "maxHeight": 720 }
  }
}
```

--------------------------------

### Run ktlint for Kotlin code formatting check

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

Use the ktlint Maven plugin to check Kotlin code formatting and style. This command must be run from within a submodule directory, such as './jvb/'.

```bash
mvn ktlint:check
```

--------------------------------

### Enable IPv6 in JVB Configuration

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/network-configuration.md

Add this HOCON configuration to `jvb.conf` to enable IPv6 support in dual-stack environments. Ensure `your-stun-server` and `YOUR_PRIVATE_IPV4`/`YOUR_PUBLIC_IPV4` are replaced with actual values.

```hocon
ice4j {
  harvest {
    use-ipv6 = true
    use-link-local-addresses = false
    mapping {
      stun {
        addresses = [ "your-stun-server:3478" ]
      }
      static-mappings = [
        {
          local-address = "YOUR_PRIVATE_IPV4"
          public-address = "YOUR_PUBLIC_IPV4"
        }
      ]
    }
  }
}
```

--------------------------------

### Autoformat code with ktlint

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/jitsi-media-transform/README.md

Run ktlint with the -F flag to automatically format the code. This command applies the ktlint formatting rules to the project files.

```bash
ktlint -F
```

--------------------------------

### Configure Jicofo for Relay Support

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/relay.md

Enable Octo support and set the bridge selection strategy in Jicofo's configuration. RegionBasedBridgeSelectionStrategy is recommended for production.

```properties
jicofo {
  bridge {
    selection-strategy = RegionBasedBridgeSelectionStrategy
  }
  octo {
    enabled = true
  }
}
```

--------------------------------

### Configure Private HTTP Interface

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest.md

Enables and configures the private HTTP interface for Jitsi-Videobridge. Specify ports, host, and TLS settings.

```hocon
videobridge {
    apis {
        rest {
            enabled = true
        }
    }
    http-servers {
        private {
            // The port for the private HTTP interface (or -1 to disable it).  Defaults to 8080.
            port = <Number>
            // The port for the private HTTP interface if TLS is to be used (or -1 to disable). Defaults to 8443.
            tls-port = <Number>
            // The address on which the server will listen
            host = <String>
            // The file path to the keystore to be used with HTTPS for the private interface.  If this is not specified,
            // HTTPS is disabled for the private interface
            key-store-path = <String (path to key store)>
            // The password to be used by the SslContextFactory when HTTPS is used
            key-store-password = <String>
            // Whether or not client certificate authentication is to be required when
            // HTTPS is used
            need-client-auth: <Boolean>
        }
    }
}
```

--------------------------------

### Run a specific test method in Jitsi Videobridge

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

This Maven command allows you to run a single, specific test method within a test class.

```bash
mvn test -Dtest=ClassName#methodName
```

--------------------------------

### Version Information Endpoint

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves the currently running version of the Jitsi Videobridge.

```http
GET /about/version
```

--------------------------------

### Run a specific test class in Jitsi Videobridge

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CLAUDE.md

Use this Maven command to execute tests only for a particular test class.

```bash
mvn test -Dtest=ClassName
```

--------------------------------

### Enable WebSockets on Bridge

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/web-sockets.md

Enable WebSocket support on the Jitsi Videobridge. Ensure 'tls' matches your HTTP server configuration. The 'domain' should be the publicly accessible domain and port. 'server-id' is optional but useful when multiple bridges share a domain.

```java
videobridge {
    websockets {
        enabled = true
        tls = true # or false, depending on your HTTP server config
        # The port here is the 'advertise port' for websockets, which means the publicly-accessible
        # port clients will use.  This may match the public http server port, but could also be different
        # if a proxy is being used.
        domain = "example.com:443"
        # A server ID can optionally be provided.  This is useful when a set of jitsi-videobridge instances
        # are fronted by an HTTP proxy and they advertise the same domain.
        server-id = jvb2
    }
}
```

--------------------------------

### Add XMPP Client Connection

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/rest-muc-client.md

Adds a new XMPP client connection (MucClient) by posting its configuration to the /colibri/muc-client/add endpoint. If a configuration with the same ID exists, it will be updated if the connection details differ.

```APIDOC
## POST /colibri/muc-client/add

### Description
Adds a new XMPP client connection (MucClient) with the provided configuration.

### Method
POST

### Endpoint
/colibri/muc-client/add

### Request Body
- **id** (string) - Required - A unique identifier for the client connection.
- **domain** (string) - Required - The XMPP domain.
- **hostname** (string) - Required - The hostname of the XMPP server.
- **username** (string) - Required - The username for authentication.
- **password** (string) - Required - The password for authentication.
- **muc_jids** (string) - Required - The MUC service JID(s).
- **muc_nickname** (string) - Required - The nickname to use in MUC.
- **disable_certificate_verification** (string) - Optional - Set to "true" to disable certificate verification.

### Request Example
```json
{
  "id": "new-client-connection",
  "domain":"xmpp.example.com",
  "hostname":"10.0.0.1",
  "username":"xmpp-username",
  "password":"xmpp-password",
  "muc_jids":"JvbBrewery@conference.xmpp.example.com",
  "muc_nickname":"unique-resource",
  "disable_certificate_verification":"false"
}
```

### Response
#### Success Response (200)
Indicates the client connection was added or updated successfully.
```

--------------------------------

### Apply ktlint formatting to IntelliJ IDEA

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/jitsi-media-transform/README.md

Configure IntelliJ IDEA to use ktlint formatting rules. This command updates the IDE's formatting settings to match ktlint's standards.

```bash
ktlint --apply-to-idea-project
```

--------------------------------

### Enable Node Tracing

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Enables adding an entry to the stack trace from each Node in the packet processing pipeline. This is useful for detailed debugging.

```http
POST /debug/stats/jvb/node-tracing/true
```

--------------------------------

### Override JVB Configuration Values

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/CONFIG.md

Use an `application.conf` file to override default configuration values for Jitsi Videobridge. Values in this file will take precedence over those in `reference.conf`.

```HOCON
videobridge {
    health {
        // Override the health check interval
        interval=60 seconds
    }
    cc {
        // Override the onstage video suspension setting
        onstage-video-suspension-enabled=true
    }
}
```

--------------------------------

### List All Conferences (Full State)

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves the complete state for all conferences and their endpoints. Be aware that the output can be substantial.

```http
GET /debug?full=true
```

--------------------------------

### Run ktlint checks

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/jitsi-media-transform/README.md

Execute ktlint to perform code style checks. This command verifies that the code adheres to the defined linting rules.

```bash
ktlint
```

--------------------------------

### Enable Packet Queue Statistics

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Enables tracking of dropped packets and exceptions in various packet queues. This is enabled by default.

```http
POST /debug/stats/jvb/queue-stats/true
```

--------------------------------

### Allow Mixed Versions for Testing

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/relay.md

For testing purposes only, set this property to true in jicofo.conf to allow Jicofo to mix Jitsi Videobridge instances with different versions in the same conference.

```properties
jicofo.ocfo.allow-mixed-versions=true
```

--------------------------------

### List Available Bridges via Jicofo Debug Interface

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/relay.md

Use this curl command to query the Jicofo debug interface and list all bridges known to Jicofo, including their versions and regions.

```bash
curl "http://localhost:8888/debug" | jq .bridge_selector
```

--------------------------------

### Enable Pipeline Statistics

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Enables the tracking of processing delay, discarded packets, and packet types per Node in the packet processing pipeline. This has low overhead and is enabled by default.

```http
POST /debug/stats/jvb/node-stats/true
```

--------------------------------

### Enable PCAP Dump for Endpoint

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Enables the saving of RTP and RTCP traffic for a specific endpoint to a PCAP file. Requires `jmt.debug.pcap.enabled=true` to be set in the Jitsi Videobridge configuration.

```APIDOC
## POST /debug/features/endpoint/CONFERENCE_ID/ENDPOINT_ID/pcap-dump/true

### Description
Enables saving RTP/RTCP traffic for a specific endpoint to a PCAP file.

### Method
POST

### Endpoint
/debug/features/endpoint/CONFERENCE_ID/ENDPOINT_ID/pcap-dump/true

### Parameters
#### Path Parameters
- **CONFERENCE_ID** (string) - Required - The ID of the conference.
- **ENDPOINT_ID** (string) - Required - The ID of the endpoint.

### Request Example
POST /debug/features/endpoint/CONFERENCE_ID/ENDPOINT_ID/pcap-dump/true
```

--------------------------------

### Enable MUC Stats Broadcasting in Videobridge

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/muc.md

Configure the 'videobridge' section to enable broadcasting statistics and presence in a MUC. This requires setting 'enabled' to true and specifying 'muc' as a transport type.

```hocon
stats {
  # Enable broadcasting stats/presence in a MUC
  enabled = true
  transports = [
    { type = "muc" }
  ]
}
```

--------------------------------

### Client-to-Videobridge EndpointMessage Format

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/datachannel-communication.md

This is the format for messages sent by clients to Jitsi Videobridge. The `to` field specifies the recipient endpoint ID, or an empty string for broadcast. `msgPayload` must be a valid JSON string.

```json
{
    colibriClass: "EndpointMessage",  
    to: "<ENDPOINT-ID>",   
    msgPayload: "<PAYLOAD>"
}

```

--------------------------------

### List Running Conferences via Jicofo Debug Interface

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/relay.md

Query the Jicofo debug interface to retrieve a list of all currently running conferences.

```bash
curl "http://localhost:8888/debug" | jq .focus_manager
```

--------------------------------

### Enable Memory Pool Statistics

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Enables the collection of statistics for application memory pools, including current size and allocation rates. This is disabled by default.

```http
POST /debug/stats/jvb/pool-stats/true
```

--------------------------------

### Enable RTP/RTCP PCAP Dumping

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Use this POST request to enable saving RTP and RTCP traffic for a specific endpoint. The bridge must be configured with `jmt.debug.pcap.enabled=true`.

```http
POST /debug/features/endpoint/CONFERENCE_ID/ENDPOINT_ID/pcap-dump/true
```

--------------------------------

### List All Conferences (Basic State)

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves a list of all active conferences and their associated endpoints, without the full state details.

```http
GET /debug
```

--------------------------------

### Videobridge-to-Client EndpointMessage Format

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/datachannel-communication.md

This is the format for messages sent by Jitsi Videobridge to clients. It includes the original `to` and `msgPayload`, with the addition of the `from` field indicating the sender's endpoint ID.

```json
{
    colibriClass: "EndpointMessage",
    to: "<ENDPOINT-ID>",
    from: "<ENDPOINT-ID>",
    msgPayload: <PAYLOAD>
}

```

--------------------------------

### List Conferences (Full State)

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves a comprehensive list of all conferences and their endpoints, including their full state. The output can be substantial.

```APIDOC
## GET /debug?full=true

### Description
This includes the full state of all conferences and their endpoints. The output can be substantial (~25KB per endpoint).

### Method
GET

### Endpoint
/debug?full=true
```

--------------------------------

### Query Task Pool Statistics

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves statistics for the various task pools (CPU, IO, scheduled). This is always enabled.

```APIDOC
## GET /debug/stats/jvb/task-pool-stats

### Description
This keeps track of statistics for the various task pools (CPU, IO, scheduled). It is always enabled.

### Method
GET

### Endpoint
/debug/stats/jvb/task-pool-stats
```

--------------------------------

### Query Prometheus Metrics

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/statistics.md

Retrieve Prometheus metrics from the /metrics endpoint. Different Accept headers can be used to query in openmetrics, 004, or JSON key-value formats. Conference size distribution metrics are available as histograms.

```bash
# Query prometheus metrics in openmetrics format
curl 0:8080/metrics -H 'Accept: application/openmetrics-text'
```

```bash
# Query prometheus metrics in 004 format
curl 0:8080/metrics -H 'Accept: text/plain; version=0.0.4;'
```

```bash
# Query prometheus metrics in a JSON key-value format
curl 0:8080/metrics -H 'Accept: application/json'
```

--------------------------------

### Query Task Pool Statistics

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves statistics for the various task pools (CPU, IO, scheduled). This feature is always enabled.

```http
GET /debug/stats/jvb/task-pool-stats
```

--------------------------------

### Query Memory Pool Statistics

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves statistics for the application memory pools.

```http
GET /debug/stats/jvb/pool-stats
```

--------------------------------

### Colibri WebSocket URL Format

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/web-sockets.md

This is the standard URL format for Colibri WebSocket connections to a Jitsi Videobridge.

```plaintext
wss://example.com/colibri-ws/server-id/conf-id/endpoint-id?pwd=123
```

--------------------------------

### Query XMPP Delay Statistics

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves statistics on the response time for requests received over XMPP.

```APIDOC
## GET /debug/stats/jvb/xmpp-delay-stats

### Description
This keeps track of the response time for requests received over XMPP.

### Method
GET

### Endpoint
/debug/stats/jvb/xmpp-delay-stats
```

--------------------------------

### List Conferences (Basic)

Source: https://github.com/jitsi/jitsi-videobridge/blob/master/doc/debugging.md

Retrieves a list of all active conferences and their associated endpoints, without including the full state.

```APIDOC
## GET /debug

### Description
This includes a list of all conferences and their endpoints, but not the full state.

### Method
GET

### Endpoint
/debug
```