Kodi: вывожу видео с камеры на TV при звонке в дверь

В первом видео я упомянул об отображении потока с камеры на экране телевизора при звонке в дверь. Сегодня я продолжу эту тему и расскажу о настройке.

Для просмотра контента на телевизоре я использую медиа-центр Kodi, работающий на Raspberry Pi 3 с дистрибутивом LibreELEC.

Перед настройкой дополнений в Kodi необходимо включить опцию для возможности их установки из сторонних источников.

А также изменить режим отображения настроек на Экспертный.

Для вывода изображения с камеры, я установил плагин Surveillance Room, предварительно загрузив архив на Raspberry Pi.

Следом поставил плагин JSON-CEC для возможности управления телевизором через HDMI, чтобы иметь возможность переключения на Kodi с других источников
сигнала. Главное, убедиться, что в настройках телевизора включена технология HDMI-CEC, потому что производителями она преподносится под разными торговыми названиями.

В настройках дополнения включаю новую камеру, ввожу название и адреса
основного видеопотока с камеры, MJPEG-потока для окна предпросмотра, и одиночного снимка.

Теперь перехожу к настройке сценария в Node-RED.

Я добавил новый блок с нодами, в которых происходит вызов различных действий в Kodi.

Перед этим я предварительно настроил интеграцию медиа-плеера с Home Assistant и подключил его в качестве платформы для уведомлений согласно документации на сайте.

В первой ноде проверяется состояние медиа-плеера, проигрывается ли что-то
на нём в данный момент или нет.

Если да, то через платформу уведомлений в Kodi создается всплывающее сообщение со следующим содержимым, где displaytime – это время отображения
в мс.

Одновременно с этим на 30 секунд всплывает окно предпросмотра видеопотока
с камеры, которое вызывается следующим запросом к плагину.

Далее следует задержка, где дополнительные 4 секунды отведены на запуск и остановку трансляции, после которой отдельным вызовом имитируется нажатие кнопки Назад, чтобы вернуться в исходную точку на экране, т. к. плагин сам этого почему-то не делает.

В случае, когда на медиа-плеере ничего не запущено, то также создается всплывающее уведомление с текстом, и запускается уже полноэкранная
трансляция видео с камеры, вызов которой отличается строкой с параметрами обращения к плагину.

А после задержки дополнительно происходит остановка трансляции.

Чтобы не создавать лишнюю активность в Kodi, когда телевизор выключен, я добавил дополнительную проверку. Она основана на состоянии бинарного сенсора, показывающего включен или выключен телевизор:

- platform: template
  sensors:
    livingroom_tv_state:
      friendly_name: "Livingroom TV State"
      value_template: "{{ states('media_player.cast_livingroom') != 'unknown' and not(is_state('media_player.cast_livingroom', 'unavailable')) }}"

Сам сенсор является шаблоном, который смотрит на статус подключенного к телевизору Chromecast’а. Если Chromecast подключен к сети и доступен для воспроизведения контента, то телевизор считается включенным, потому что Chromecast воткнут в USB-порт телевизора, питание на котором появляется только при его включении. Сам Chromecast добавлен в Home Assistant через меню интеграций.

Полученный сценарий можно расширить, добавив большее количество медиа-центров Kodi, если таковые имеются. При этом, усложняется и схема.
Для этого некоторые ноды размещаются друг за другом, где последовательно происходит считывание состояния каждого устройства.

В двух блоках (TV status) состояние записывается в отдельную переменную.
Далее проверяется состояние Kodi. И также, если проигрывается, создаётся новая переменная (Kodi status) со значением playing, если не проигрывается, то со значением, которое имеется на данный момент.
С Chromecast’ом та же история (Cast status): если проигрывается — записывается playing, если не проигрывается — записывается текущее состояние.

В ноде Function (data) есть небольшой скрипт, который, в зависимости от состояния устройств, выполняет то или иное действие. Здесь есть несколько переменных, в которых указывается имя нотификатора, имя медиа-плеера Kodi и выключатель, который переключает источник сигнала на телевизоре на Kodi:

switch.yaml:

- platform: template
  switches:
    livingroom_tv_kodi:
      friendly_name: Livingroom TV Kodi
      value_template: "{{ is_state('switch.livingroom_tv_kodi', 'on') }}"
      icon_template: mdi:kodi
      turn_on:
        - service: script.kodi_livingroom_turn_on_action
        - service: switch.turn_off
          entity_id: switch.livingroom_tv_kodi
      turn_off:
        delay:
          seconds: 0

scripts.yaml:

kodi_livingroom_turn_on_action:
  alias: Turn ON Livingroom TV HDMI to Kodi
  sequence:
  - data:
      addonid: script.json-cec
      entity_id: media_player.kodi_livingroom
      method: Addons.ExecuteAddon
      params:
        command: activate
    service: kodi.call_method

Например, если в Kodi в данный момент что-то проигрывается, то скрипт идёт по первому пути, где вызывается всплывающее уведомление. Параллельно с этим воспроизведение ставится на паузу, и также параллельно с этим вызывается предпросмотр с камеры через плагин.

В случае, когда на медиа-центре Kodi ничего не воспроизводится, либо включен какой-то другой источник сигнала, то вызывается полноэкранный поток с камеры
и происходит переключение источника сигнала на телевизоре на Kodi.

Здесь ещё также добавлена задержка, которая нужна, чтобы телевизор успел переключиться на Kodi, после чего создаётся всплывающее уведомление
с характерным звуком.

Код всего Node-RED-flow представлен ниже:

[{"id":"fd15b534.04ee48","type":"tab","label":"Flow 2","disabled":false,"info":""},{"id":"9f016b89.edeb18","type":"server-state-changed","z":"fd15b534.04ee48","name":"Звонок в дверь","server":"b9490f48.586ed","version":3,"exposeToHomeAssistant":false,"haConfig":[{"property":"name","value":""},{"property":"icon","value":""}],"entityidfilter":"switch.corridor_doorbell_ding","entityidfiltertype":"substring","outputinitially":false,"state_type":"str","haltifstate":"on","halt_if_type":"str","halt_if_compare":"is","outputs":2,"output_only_on_state_change":false,"for":"","forType":"num","forUnits":"minutes","ignorePrevStateNull":false,"ignorePrevStateUnknown":false,"ignorePrevStateUnavailable":false,"ignoreCurrentStateUnknown":false,"ignoreCurrentStateUnavailable":false,"outputProperties":[{"property":"payload","propertyType":"msg","value":"","valueType":"entityState"},{"property":"data","propertyType":"msg","value":"","valueType":"eventData"},{"property":"topic","propertyType":"msg","value":"","valueType":"triggerId"}],"x":100,"y":160,"wires":[["96fbc9f0.88a2e8"],[]]},{"id":"96fbc9f0.88a2e8","type":"delay","z":"fd15b534.04ee48","name":"","pauseType":"rate","timeout":"5","timeoutUnits":"seconds","rate":"1","nbRateUnits":"120","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":true,"x":320,"y":160,"wires":[["65c28ed9.0a8e6","eed3b3a.5d4555"]]},{"id":"65c28ed9.0a8e6","type":"stoptimer","z":"fd15b534.04ee48","duration":"1","units":"Second","payloadtype":"str","payloadval":"","name":"Timeout","x":560,"y":160,"wires":[["4a1d76bc.4213b8"],[]]},{"id":"6a886333.f832cc","type":"telegram event","z":"fd15b534.04ee48","name":"Еще снимок","bot":"f6e2842.9c49078","event":"callback_query","autoanswer":true,"x":470,"y":120,"wires":[["7d5306e4.b68658"]]},{"id":"7d5306e4.b68658","type":"switch","z":"fd15b534.04ee48","name":"","property":"payload.content","propertyType":"msg","rules":[{"t":"eq","v":"RING MORE PIC","vt":"str"}],"checkall":"true","repair":false,"outputs":1,"x":595,"y":120,"wires":[["4a1d76bc.4213b8"]],"l":false},{"id":"4a1d76bc.4213b8","type":"http request","z":"fd15b534.04ee48","name":"","method":"GET","ret":"bin","paytoqs":"ignore","url":"http://192.168.1.51/ISAPI/Streaming/channels/101/picture?snapShotImageType=JPEG","tls":"","persist":false,"proxy":"","authType":"digest","x":750,"y":140,"wires":[["ff3c4b90.e504a8"]]},{"id":"ff3c4b90.e504a8","type":"switch","z":"fd15b534.04ee48","name":"","property":"payload.chat.id","propertyType":"msg","rules":[{"t":"eq","v":"9999999","vt":"str"},{"t":"null"},{"t":"eq","v":"8888888","vt":"str"}],"checkall":"true","repair":false,"outputs":3,"x":910,"y":140,"wires":[["3edab718.b8c668"],["3edab718.b8c668","4295b732.a42978"],["4295b732.a42978"]],"outputLabels":["Sergey","Empty",null]},{"id":"3edab718.b8c668","type":"change","z":"fd15b534.04ee48","name":"Chat ID","rules":[{"t":"set","p":"chatId","pt":"msg","to":"99999999","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":1060,"y":120,"wires":[["d0a52ed6.209b5"]]},{"id":"d0a52ed6.209b5","type":"function","z":"fd15b534.04ee48","name":"Data","func":"context.global.keyboard = { messageId : msg.payload.messageId };\n\nvar opts = {\n  reply_to_message_id: msg.payload.messageId,\n  reply_markup: JSON.stringify({\n    \"inline_keyboard\": [[\n                {\n                    \"text\": \"📷 Eщё снимок\",\n                    \"callback_data\": \"RING MORE PIC\"\n                }]\n            ]\n  })\n};\n\nmsg.payload = {\n    chatId: msg.chatId,\n    type: \"photo\",\n    content: msg.payload,\n    caption: \"🔔 Звонок в дверь\",\n    options: opts\n};\nreturn msg;\n","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1210,"y":140,"wires":[["9a15c39c.d532"]]},{"id":"9a15c39c.d532","type":"telegram sender","z":"fd15b534.04ee48","name":"","bot":"f6e2842.9c49078","haserroroutput":false,"outputs":1,"x":1390,"y":140,"wires":[[]]},{"id":"4295b732.a42978","type":"change","z":"fd15b534.04ee48","name":"Chat ID","rules":[{"t":"set","p":"chatId","pt":"msg","to":"8888888","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":1060,"y":160,"wires":[["d0a52ed6.209b5"]]},{"id":"eed3b3a.5d4555","type":"api-current-state","z":"fd15b534.04ee48","name":"TV Livingroom","server":"b9490f48.586ed","version":2,"outputs":2,"halt_if":"on","halt_if_type":"str","halt_if_compare":"is","entity_id":"binary_sensor.livingroom_tv_state","state_type":"str","blockInputOverrides":false,"outputProperties":[{"property":"payload","propertyType":"msg","value":"","valueType":"entityState"},{"property":"data","propertyType":"msg","value":"","valueType":"entity"},{"property":"topic","propertyType":"msg","value":"","valueType":"triggerId"}],"x":300,"y":300,"wires":[["9dfd6ea5.6255"],["631679c3.141578"]]},{"id":"9dfd6ea5.6255","type":"change","z":"fd15b534.04ee48","name":"TV status","rules":[{"t":"set","p":"livingroom_tv_status","pt":"msg","to":"on","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":480,"y":280,"wires":[["56da301b.3477a"]]},{"id":"631679c3.141578","type":"change","z":"fd15b534.04ee48","name":"TV status","rules":[{"t":"set","p":"livingroom_tv_status","pt":"msg","to":"off","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":480,"y":320,"wires":[["56da301b.3477a"]]},{"id":"56da301b.3477a","type":"api-current-state","z":"fd15b534.04ee48","name":"Kodi Livingroom","server":"b9490f48.586ed","version":2,"outputs":2,"halt_if":"playing","halt_if_type":"str","halt_if_compare":"is","entity_id":"media_player.kodi_livingroom","state_type":"str","blockInputOverrides":false,"outputProperties":[{"property":"payload","propertyType":"msg","value":"","valueType":"entityState"},{"property":"data","propertyType":"msg","value":"","valueType":"entity"},{"property":"topic","propertyType":"msg","value":"","valueType":"triggerId"}],"x":300,"y":380,"wires":[["3078c290.948d9e"],["3e2fb6b7.4a64ea"]]},{"id":"3078c290.948d9e","type":"change","z":"fd15b534.04ee48","name":"Kodi status","rules":[{"t":"set","p":"livingroom_kodi_status","pt":"msg","to":"playing","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":490,"y":360,"wires":[["b8cd7ae8.3af688"]]},{"id":"3e2fb6b7.4a64ea","type":"change","z":"fd15b534.04ee48","name":"Kodi status","rules":[{"t":"set","p":"livingroom_kodi_status","pt":"msg","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":490,"y":400,"wires":[["b8cd7ae8.3af688"]]},{"id":"b8cd7ae8.3af688","type":"api-current-state","z":"fd15b534.04ee48","name":"Cast Livingroom","server":"b9490f48.586ed","version":2,"outputs":2,"halt_if":"playing","halt_if_type":"str","halt_if_compare":"is","entity_id":"media_player.cast_livingroom","state_type":"str","blockInputOverrides":false,"outputProperties":[{"property":"payload","propertyType":"msg","value":"","valueType":"entityState"},{"property":"data","propertyType":"msg","value":"","valueType":"entity"},{"property":"topic","propertyType":"msg","value":"","valueType":"triggerId"}],"x":300,"y":460,"wires":[["198da4af.354efb"],["872594d2.187c58"]]},{"id":"198da4af.354efb","type":"change","z":"fd15b534.04ee48","name":"Cast status","rules":[{"t":"set","p":"livingroom_cast_status","pt":"msg","to":"playing","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":490,"y":440,"wires":[["44b931b4.dde44"]]},{"id":"872594d2.187c58","type":"change","z":"fd15b534.04ee48","name":"Cast status","rules":[{"t":"set","p":"livingroom_cast_status","pt":"msg","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"x":490,"y":480,"wires":[["44b931b4.dde44"]]},{"id":"44b931b4.dde44","type":"function","z":"fd15b534.04ee48","name":"data","func":"if (msg.livingroom_tv_status == \"on\") {\n    msg.kodi_service = \"kodi_livingroom_notifier\"\n    msg.kodi_name = \"media_player.kodi_livingroom\"\n    msg.tv_source = \"switch.livingroom_tv_kodi\"\n    if ((msg.livingroom_kodi_status == \"playing\") && (msg.livingroom_cast_status != \"playing\")) {\n        return [msg, null]\n    } else if ((msg.livingroom_kodi_status != \"playing\") && (msg.livingroom_cast_status != \"playing\")) {\n        return [null, msg]\n    }\n}","outputs":2,"noerr":0,"initialize":"","finalize":"","libs":[],"x":710,"y":380,"wires":[["f978d275.ceb4c","c0f778fa.ac9448","177f145e.c9c52c","b3b9bba.5bfe148"],["b9933d4b.f5e5d","177f145e.c9c52c"]]},{"id":"f978d275.ceb4c","type":"function","z":"fd15b534.04ee48","name":"Ding","func":"msg.payload = {\n    service: msg.kodi_service,\n    data: {\n        \"title\": \"Звонок в дверь\",\n        \"message\": \"Звонок в дверь\",\n        \"data\": {\n            \"displaytime\": 10000,\n            \"icon\": \"http://172.16.1.3:8123/local/images/kodi_ding.png\"\n        }\n    }\n}\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":910,"y":300,"wires":[["1b038a66.796fc6"]]},{"id":"c0f778fa.ac9448","type":"function","z":"fd15b534.04ee48","name":"Fullscreen","func":"msg.payload = {\n    data: {\n        \"entity_id\": msg.kodi_name,\n        \"method\": \"Addons.ExecuteAddon\",\n        \"addonid\": \"plugin.video.surveillanceroom\",\n        \"params\": \"action=single_camera_no_controls&camera_number=2\"\n    }\n}\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":930,"y":420,"wires":[["984d1a26.905238","1fb046db.e41fe9"]]},{"id":"177f145e.c9c52c","type":"function","z":"fd15b534.04ee48","name":"Preview","func":"msg.payload = {\n    data: {\n        \"entity_id\": msg.kodi_name,\n        \"method\": \"Addons.ExecuteAddon\",\n        \"addonid\": \"plugin.video.surveillanceroom\",\n        \"params\": \"action=show_preview&camera_number=2\"\n    }\n}\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":920,"y":380,"wires":[["984d1a26.905238","ac428d66.c98c8"]]},{"id":"b3b9bba.5bfe148","type":"function","z":"fd15b534.04ee48","name":"Kodi name","func":"msg.payload = {\n    data: {\n        \"entity_id\": msg.kodi_name\n    }\n}\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":930,"y":340,"wires":[["7c68d79f.b82308"]]},{"id":"b9933d4b.f5e5d","type":"function","z":"fd15b534.04ee48","name":"Source","func":"msg.payload = \n{\n    data: {\n        \"entity_id\": msg.tv_source,\n    }\n}\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":920,"y":460,"wires":[["905a9a46.5470f8","856436ab.16a478"]]},{"id":"905a9a46.5470f8","type":"delay","z":"fd15b534.04ee48","name":"","pauseType":"delay","timeout":"4","timeoutUnits":"seconds","rate":"1","nbRateUnits":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"x":740,"y":300,"wires":[["f978d275.ceb4c"]]},{"id":"1b038a66.796fc6","type":"api-call-service","z":"fd15b534.04ee48","name":"Kodi notify","server":"b9490f48.586ed","version":3,"debugenabled":false,"service_domain":"notify","service":"","entityId":"","data":"{}","dataType":"json","mergecontext":"","mustacheAltTags":false,"outputProperties":[{"property":"payload","propertyType":"msg","value":"","valueType":"data"}],"queue":"none","x":1130,"y":280,"wires":[[]]},{"id":"984d1a26.905238","type":"api-call-service","z":"fd15b534.04ee48","name":"Kodi call","server":"b9490f48.586ed","version":3,"debugenabled":false,"service_domain":"kodi","service":"call_method","entityId":"","data":"{}","dataType":"json","mergecontext":"","mustacheAltTags":false,"outputProperties":[{"property":"payload","propertyType":"msg","value":"","valueType":"data"}],"queue":"none","x":1120,"y":400,"wires":[[]]},{"id":"1fb046db.e41fe9","type":"delay","z":"fd15b534.04ee48","name":"","pauseType":"delay","timeout":"32","timeoutUnits":"seconds","rate":"1","nbRateUnits":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"x":1120,"y":440,"wires":[["df077307.48a3b"]]},{"id":"ac428d66.c98c8","type":"delay","z":"fd15b534.04ee48","name":"","pauseType":"delay","timeout":"36","timeoutUnits":"seconds","rate":"1","nbRateUnits":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"x":1120,"y":360,"wires":[["d9f0be42.1e56e"]]},{"id":"7c68d79f.b82308","type":"api-call-service","z":"fd15b534.04ee48","name":"Media pause","server":"b9490f48.586ed","version":3,"debugenabled":false,"service_domain":"media_player","service":"media_play_pause","entityId":"","data":"{}","dataType":"json","mergecontext":"","mustacheAltTags":false,"outputProperties":[{"property":"payload","propertyType":"msg","value":"","valueType":"data"}],"queue":"none","x":1130,"y":320,"wires":[["b83a0255.369fe"]]},{"id":"856436ab.16a478","type":"api-call-service","z":"fd15b534.04ee48","name":"Set TV source","server":"b9490f48.586ed","version":3,"debugenabled":false,"service_domain":"switch","service":"turn_on","entityId":"","data":"{}","dataType":"json","mergecontext":"","mustacheAltTags":false,"outputProperties":[{"property":"payload","propertyType":"msg","value":"","valueType":"data"}],"queue":"none","x":1140,"y":480,"wires":[[]]},{"id":"d9f0be42.1e56e","type":"function","z":"fd15b534.04ee48","name":"Back","func":"msg.payload = {\n    data: {\n        \"entity_id\": msg.kodi_name,\n        \"method\": \"Input.Back\"\n    }\n}\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1250,"y":360,"wires":[["984d1a26.905238"]]},{"id":"df077307.48a3b","type":"function","z":"fd15b534.04ee48","name":"Name","func":"msg.payload = {\n    entity_id: msg.kodi_name\n}\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","libs":[],"x":1310,"y":440,"wires":[["7d3a4f11.178c3"]]},{"id":"b83a0255.369fe","type":"delay","z":"fd15b534.04ee48","name":"","pauseType":"delay","timeout":"2","timeoutUnits":"minutes","rate":"1","nbRateUnits":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"x":1280,"y":320,"wires":[["67d3df46.400d5"]]},{"id":"7d3a4f11.178c3","type":"api-call-service","z":"fd15b534.04ee48","name":"Camera stop","server":"b9490f48.586ed","version":3,"debugenabled":false,"service_domain":"media_player","service":"media_stop","entityId":"","data":"{}","dataType":"json","mergecontext":"","mustacheAltTags":false,"outputProperties":[{"property":"payload","propertyType":"msg","value":"","valueType":"data"}],"queue":"none","x":1470,"y":440,"wires":[[]]},{"id":"67d3df46.400d5","type":"api-call-service","z":"fd15b534.04ee48","name":"Media play","server":"b9490f48.586ed","version":3,"debugenabled":false,"service_domain":"media_player","service":"media_play","entityId":"","data":"{}","dataType":"json","mergecontext":"","mustacheAltTags":false,"outputProperties":[{"property":"payload","propertyType":"msg","value":"","valueType":"data"}],"queue":"none","x":1430,"y":320,"wires":[[]]}]

Дальше этот сценарий можно расширять в зависимости от потребностей и насколько хватит воображения.

Все конфигурации, описанные в статье, доступны на GitHub.