frigate/docker/main/rootfs/etc/s6-overlay/s6-rc.d/go2rtc/run

#!/command/with-contenv bash
# shellcheck shell=bash
# Start the go2rtc service

set -o errexit -o nounset -o pipefail

# Logs should be sent to stdout so that s6 can collect them

function get_ip_and_port_from_supervisor() {
    local ip_address
    # Example: 192.168.1.10/24
    local ip_regex='^([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3})/[0-9]{1,2}$'
    if ip_address=$(
        curl -fsSL \
            -H "Authorization: Bearer ${SUPERVISOR_TOKEN}" \
            -H "Content-Type: application/json" \
            http://supervisor/network/interface/default/info |
            jq --exit-status --raw-output '.data.ipv4.address[0]'
    ) && [[ "${ip_address}" =~ ${ip_regex} ]]; then
        ip_address="${BASH_REMATCH[1]}"
        echo "[INFO] Got IP address from supervisor: ${ip_address}"
    else
        echo "[WARN] Failed to get IP address from supervisor"
        return 0
    fi

    local webrtc_port
    local port_regex='^([0-9]{1,5})$'
    if webrtc_port=$(
        curl -fsSL \
            -H "Authorization: Bearer ${SUPERVISOR_TOKEN}" \
            -H "Content-Type: application/json" \
            http://supervisor/addons/self/info |
            jq --exit-status --raw-output '.data.network["8555/tcp"]'
    ) && [[ "${webrtc_port}" =~ ${port_regex} ]]; then
        webrtc_port="${BASH_REMATCH[1]}"
        echo "[INFO] Got WebRTC port from supervisor: ${webrtc_port}"
    else
        echo "[WARN] Failed to get WebRTC port from supervisor"
        return 0
    fi

    export FRIGATE_GO2RTC_WEBRTC_CANDIDATE_INTERNAL="${ip_address}:${webrtc_port}"
}

function set_libva_version() {
    local ffmpeg_path
    ffmpeg_path=$(python3 /usr/local/ffmpeg/get_ffmpeg_path.py)
    LIBAVFORMAT_VERSION_MAJOR=$("$ffmpeg_path" -version | grep -Po "libavformat\W+\K\d+")
    export LIBAVFORMAT_VERSION_MAJOR
}

function migrate_addon_config_dir() {
    if ! mountpoint --quiet /homeassistant_config; then
        # Not running as a Home Assistant add-on
        return 0
    fi

    local new_config_file="/config/config.yml"
    local new_config_file_yaml="${new_config_file//.yml/.yaml}"
    if [[ -f "${new_config_file_yaml}" || -f "${new_config_file}" ]]; then
        # Already migrated
        return 0
    fi
    unset new_config_file new_config_file_yaml

    local old_config_file="/homeassistant_config/frigate.yml"
    local old_config_file_yaml="${old_config_file//.yml/.yaml}"
    local new_config_file="/config/config.yml"
    if [[ -f "${old_config_file_yaml}" ]]; then
        old_config_file="${old_config_file_yaml}"
        new_config_file="/config/config.yaml"
    elif [[ ! -f "${old_config_file}" ]]; then
        # Nothing to migrate
        return 0
    fi
    unset old_config_file_yaml

    local db_path
    db_path=$(yq eval '.database.path' "${old_config_file}")

    if [[ "${db_path}" == "null" ]]; then
        db_path="/config/frigate.db"
    fi

    if [[ "${db_path}" == /config/* ]]; then
        # replace /config/ prefix with /homeassistant_config/
        old_db_path="/homeassistant_config/${db_path:8}"

        if [[ -f "${old_db_path}" ]]; then
            new_db_dir="$(dirname "${db_path}")"
            echo "[INFO] Migrating database from '${old_db_path}' to '${new_db_dir}' dir..."
            mv -vf "${old_db_path}"* "${new_db_dir}"
        fi
    fi

    echo "[INFO] Migrating config from '${old_config_file}' to '${new_config_file}'..."
    mv -vf "${old_config_file}" "${new_config_file}"
}

migrate_addon_config_dir

set_libva_version

if [[ -f "/dev/shm/go2rtc.yaml" ]]; then
    echo "[INFO] Removing stale config from last run..."
    rm /dev/shm/go2rtc.yaml
fi

if [[ ! -f "/dev/shm/go2rtc.yaml" ]]; then
    echo "[INFO] Preparing new go2rtc config..."

    if [[ -n "${SUPERVISOR_TOKEN:-}" ]]; then
        # Running as a Home Assistant add-on, infer the IP address and port
        get_ip_and_port_from_supervisor
    fi

    python3 /usr/local/go2rtc/create_config.py
else
    echo "[WARNING] Unable to remove existing go2rtc config. Changes made to your frigate config file may not be recognized. Please remove the /dev/shm/go2rtc.yaml from your docker host manually."
fi

readonly config_path="/config"

if [[ -x "${config_path}/go2rtc" ]]; then
  readonly binary_path="${config_path}/go2rtc"
  echo "[WARN] Using go2rtc binary from '${binary_path}' instead of the embedded one"
else
  readonly binary_path="/usr/local/go2rtc/bin/go2rtc"
fi

echo "[INFO] Starting go2rtc..."

# Replace the bash process with the go2rtc process, redirecting stderr to stdout
exec 2>&1
exec "${binary_path}" -config=/dev/shm/go2rtc.yaml