Initial release v0.1.0

Home Assistant custom integration for NVIDIA Shield TV that composes
the Android TV Remote, Jellyfin, smart plug, and receiver entities
into a single unified media player with ADB-based now-playing from
any app. Part of the Media Zone ecosystem.

Entities:
- media_player: power (with smart plug fallback), transport, input,
  volume routed to receiver, rich stream info overlay when Jellyfin
  is active
- sensor: DAG attributes and stream info
- button: Pair ADB

Config:
- Two-step flow: basic setup + optional ADB pairing on the Shield
- Configurable ADB port (default 5555)
- Pick an existing Jellyfin media_player entity — stream info is read
  from the HA Jellyfin integration's own DataUpdateCoordinator, so
  no server URL / API key / extra config needed here
- Privacy mode (adb_store_app_info=False) suppresses non-Jellyfin
  media details, showing only the app name

Ecosystem:
- Exposes media_dag_* attributes for ha-media-zone orchestration
- Exposes media_dag_running_apps and async_bring_to_foreground for
  the Media Zone card's app switcher

Shared ADB code lives in ltomes/ha-adb-common and is vendored at
custom_components/nvidia_shield/ha_adb_common/ for HACS installs.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

custom_components/nvidia_shield/const.py

@@ -0,0 +1,38 @@
+"""Constants for the Nvidia Shield integration."""
+
+# Re-export shared Media DAG constants
+from .ha_adb_common.const import (  # noqa: F401
+    ATTR_MEDIA_DAG_JELLYFIN_ENTITY,
+    ATTR_MEDIA_DAG_NOW_PLAYING,
+    ATTR_MEDIA_DAG_RECEIVER_ENTITY,
+    ATTR_MEDIA_DAG_RECEIVER_INPUT,
+    ATTR_MEDIA_DAG_ROLE,
+    ATTR_MEDIA_DAG_RUNNING_APPS,
+)
+
+DOMAIN = "nvidia_shield"
+
+CONF_ANDROIDTV_ENTITY = "androidtv_entity"
+CONF_JELLYFIN_ENTITY = "jellyfin_entity"
+CONF_RECEIVER_ENTITY = "receiver_entity"
+CONF_RECEIVER_INPUT = "receiver_input"
+CONF_POWER_ENTITY = "power_entity"
+CONF_ADB_ENABLED = "adb_enabled"
+CONF_ADB_STORE_APP_INFO = "adb_store_app_info"
+CONF_ADB_HOST = "adb_host"
+CONF_ADB_PORT = "adb_port"
+
+ADB_POLL_INTERVAL = 10  # seconds
+ADB_RETRY_INTERVAL = 300  # seconds before retrying a failed ADB connection
+DEFAULT_ADB_PORT = 5555
+
+DEFAULT_NAME = "Nvidia Shield"
+
+# Emotiva DAG attribute we read to get available inputs
+ATTR_MEDIA_DAG_INPUT_MAP = "media_dag_input_map"
+
+# Known Jellyfin app package IDs
+JELLYFIN_APP_IDS = [
+    "org.jellyfin.androidtv",
+    "org.jellyfin.mobile",
+]