music-assistant-server

1"""Chromecast Player implementation."""
2
3from __future__ import annotations
4
5import asyncio
6import time
7from collections.abc import Callable
8from typing import TYPE_CHECKING, Any, cast
9from uuid import UUID
10
11if TYPE_CHECKING:
12    from music_assistant_models.config_entries import ConfigEntry
13
14from music_assistant_models.enums import (
15    IdentifierType,
16    MediaType,
17    PlaybackState,
18    PlayerFeature,
19    PlayerType,
20)
21from music_assistant_models.errors import PlayerUnavailableError
22from music_assistant_models.player import PlayerSource
23from pychromecast import IDLE_APP_ID
24from pychromecast.controllers.media import (
25    MEDIA_PLAYER_ERROR_CODES,
26    MEDIA_PLAYER_STATE_BUFFERING,
27    STREAM_TYPE_LIVE,
28)
29from pychromecast.controllers.multizone import MultizoneController
30from pychromecast.socket_client import CONNECTION_STATUS_CONNECTED, CONNECTION_STATUS_DISCONNECTED
31
32from music_assistant.constants import MASS_LOGO_ONLINE, VERBOSE_LOG_LEVEL
33from music_assistant.helpers.util import is_valid_mac_address
34from music_assistant.models.player import DeviceInfo, Player, PlayerMedia
35
36from .constants import (
37    APP_LAUNCH_TIMEOUT,
38    APP_MEDIA_RECEIVER,
39    APP_QUIT_DELAY,
40    CAST_PLAYER_CONFIG_ENTRIES,
41    CONF_ENTRY_SAMPLE_RATES_CAST,
42    CONF_ENTRY_SAMPLE_RATES_CAST_GROUP,
43    CONF_USE_MASS_APP,
44    DASHBOARD_KEEPALIVE_SUFFIXES,
45    MASS_APP_ID,
46    SENDSPIN_CAST_APP_ID,
47)
48from .helpers import CastStatusListener, ChromecastInfo
49
50if TYPE_CHECKING:
51    from pychromecast import Chromecast
52    from pychromecast.controllers.media import MediaStatus
53    from pychromecast.controllers.receiver import CastStatus
54    from pychromecast.socket_client import ConnectionStatus
55
56    from .provider import ChromecastProvider
57
58
59class ChromecastPlayer(Player):
60    """Chromecast Player."""
61
62    active_cast_group: str | None = None
63    # a quit that is already on the wire cannot be recalled, so a receiver that
64    # still reports our app is no longer proof that the session is usable
65    app_quit_sent: bool = False
66
67    def __init__(
68        self,
69        provider: ChromecastProvider,
70        player_id: str,
71        cast_info: ChromecastInfo,
72        chromecast: Chromecast,
73    ) -> None:
74        """Init."""
75        super().__init__(provider, player_id)
76        if cast_info.is_audio_group and cast_info.is_multichannel_group:
77            player_type = PlayerType.STEREO_PAIR
78        elif cast_info.is_audio_group:
79            player_type = PlayerType.GROUP
80        elif self._is_google_device(cast_info):
81            # Google devices (Chromecast, Nest, Google Home) have native Cast support
82            player_type = PlayerType.PLAYER
83        else:
84            # Non-Google devices are generic Chromecast receivers
85            # Will be wrapped in a UniversalPlayer
86            player_type = PlayerType.PROTOCOL
87        self.cc = chromecast
88        self.status_listener: CastStatusListener | None
89        self.cast_info = cast_info
90        self.mz_controller: MultizoneController | None = None
91        self.on_app_status_changed: Callable[[str | None], None] | None = None
92        self.last_poll = 0.0
93        self.last_multichannel_check = 0.0
94        self.flow_meta_checksum: str | None = None
95        self._app_quit_task_id: str = f"cast_quit_app_{player_id}"
96        self._media_error_reported = False
97        # set static variables
98        self._attr_supported_features = {
99            PlayerFeature.PLAY_MEDIA,
100            PlayerFeature.VOLUME_SET,
101            PlayerFeature.VOLUME_MUTE,
102            PlayerFeature.PAUSE,
103            PlayerFeature.NEXT_PREVIOUS,
104            PlayerFeature.ENQUEUE,
105            PlayerFeature.SEEK,
106        }
107        self._attr_name = self.cast_info.friendly_name
108        self._attr_available = False
109        self._attr_needs_poll = True
110        self._attr_type = player_type
111        # Disable TV's by default
112        # (can be enabled manually by the user)
113        enabled_by_default = True
114        for exclude in ("tv", "/12", "PUS", "OLED"):
115            if exclude.lower() in cast_info.friendly_name.lower():
116                enabled_by_default = False
117        self._attr_enabled_by_default = enabled_by_default
118
119        self._attr_device_info = DeviceInfo(
120            model=self.cast_info.model_name,
121            manufacturer=self.cast_info.manufacturer or "",
122        )
123        # add mac/IP identifiers for protocol-matching
124        # (but skip for groups since they don't have a real IP/MAC)
125        if not cast_info.is_audio_group:
126            self._attr_device_info.add_identifier(IdentifierType.IP_ADDRESS, self.cast_info.host)
127            # Only add MAC address if it's valid (not 00:00:00:00:00:00)
128            if is_valid_mac_address(self.cast_info.mac_address):
129                self._attr_device_info.add_identifier(
130                    IdentifierType.MAC_ADDRESS, self.cast_info.mac_address
131                )
132        self._attr_device_info.add_identifier(IdentifierType.UUID, str(self.cast_info.uuid))
133        self._attr_device_info.add_identifier(IdentifierType.CAST_UUID, str(self.cast_info.uuid))
134        assert provider.mz_mgr is not None  # for type checking
135        status_listener = CastStatusListener(self, provider.mz_mgr)
136        self.status_listener = status_listener
137        if player_type == PlayerType.GROUP:
138            mz_controller = MultizoneController(cast_info.uuid)
139            self.cc.register_handler(mz_controller)
140            self.mz_controller = mz_controller
141
142    async def async_setup(self) -> None:
143        """Start the chromecast socket client (must be called after __init__)."""
144        await asyncio.to_thread(self.cc.start)
145
146    async def get_config_entries(self) -> list[ConfigEntry]:
147        """Return all (provider/player specific) Config Entries for the given player (if any)."""
148        if self.type == PlayerType.GROUP:
149            return [
150                *CAST_PLAYER_CONFIG_ENTRIES,
151                CONF_ENTRY_SAMPLE_RATES_CAST_GROUP,
152            ]
153
154        return [
155            *CAST_PLAYER_CONFIG_ENTRIES,
156            CONF_ENTRY_SAMPLE_RATES_CAST,
157        ]
158
159    async def stop(self) -> None:
160        """Send STOP command to given player."""
161        if self.type == PlayerType.GROUP:
162            await asyncio.to_thread(self.cc.media_controller.stop)
163            return
164        if self.cc.app_id not in (MASS_APP_ID, APP_MEDIA_RECEIVER):
165            # another app is casting to the device, release it right away
166            await self._quit_app()
167            return
168        if self.cc.media_controller.status.media_session_id is not None:
169            # a stop is refused by the cast library when nothing was ever loaded
170            await asyncio.to_thread(self.cc.media_controller.stop)
171        self._schedule_app_release()
172
173    def cancel_pending_app_quit(self) -> None:
174        """Cancel a pending release of the receiver app, to keep the device claimed."""
175        self.mass.cancel_timer(self._app_quit_task_id)
176        # a quit that already fired runs as a task under the same id,
177        # which only cancel_task reaches
178        self.mass.cancel_task(self._app_quit_task_id)
179
180    async def play(self) -> None:
181        """Send PLAY command to given player."""
182        await asyncio.to_thread(self.cc.media_controller.play)
183
184    async def pause(self) -> None:
185        """Send PAUSE command to given player."""
186        await asyncio.to_thread(self.cc.media_controller.pause)
187
188    async def next_track(self) -> None:
189        """Handle NEXT TRACK command for given player."""
190        await asyncio.to_thread(self.cc.media_controller.queue_next)
191
192    async def previous_track(self) -> None:
193        """Handle PREVIOUS TRACK command for given player."""
194        await asyncio.to_thread(self.cc.media_controller.queue_prev)
195
196    async def seek(self, position: int) -> None:
197        """Handle SEEK command on the player."""
198        await asyncio.to_thread(self.cc.media_controller.seek, position)
199
200    async def power(self, powered: bool) -> None:
201        """Send POWER command to given player (only for Cast Groups)."""
202        if powered:
203            await self._launch_app()
204            self._attr_active_source = None
205        else:
206            self._attr_active_source = None
207            await self._quit_app()
208        # optimistically update the state
209        self.update_state()
210
211    async def volume_set(self, volume_level: int) -> None:
212        """Send VOLUME_SET command to given player."""
213        # Round to 2 decimal places to avoid floating-point precision issues
214        await asyncio.to_thread(self.cc.set_volume, round(volume_level / 100, 2))
215
216    async def volume_mute(self, muted: bool) -> None:
217        """Send VOLUME MUTE command to given player."""
218        await asyncio.to_thread(self.cc.set_volume_muted, muted)
219
220    async def play_media(
221        self,
222        media: PlayerMedia,
223    ) -> None:
224        """Handle PLAY MEDIA on given player."""
225        stream_url = await self.provider.mass.streams.resolve_stream_url(self.player_id, media)
226        queuedata = {
227            "type": "LOAD",
228            "media": self._create_cc_media_item(media, stream_url),
229        }
230        # make sure that our media controller app is launched
231        await self._launch_app()
232        # send queue info to the CC
233        media_controller = self.cc.media_controller
234        await asyncio.to_thread(media_controller.send_message, data=queuedata, inc_session_id=True)
235
236    async def enqueue_next_media(self, media: PlayerMedia) -> None:
237        """Handle enqueuing of the next item on the player."""
238        next_item_id = None
239        status = self.cc.media_controller.status
240        stream_url = await self.provider.mass.streams.resolve_stream_url(self.player_id, media)
241        # lookup position of current track in cast queue
242        cast_current_item_id = getattr(status, "current_item_id", 0)
243        cast_queue_items = getattr(status, "items", [])
244        cur_item_found = False
245        for item in cast_queue_items:
246            if item["itemId"] == cast_current_item_id:
247                cur_item_found = True
248                continue
249            if not cur_item_found:
250                continue
251            next_item_id = item["itemId"]
252            # check if the next queue item isn't already queued
253            if item.get("media", {}).get("customData", {}).get("uri") == stream_url:
254                return
255        queuedata = {
256            "type": "QUEUE_INSERT",
257            "insertBefore": next_item_id,
258            "items": [
259                {
260                    "autoplay": True,
261                    "startTime": 0,
262                    "preloadTime": 0,
263                    "media": self._create_cc_media_item(media, stream_url),
264                }
265            ],
266        }
267        media_controller = self.cc.media_controller
268        queuedata["mediaSessionId"] = media_controller.status.media_session_id
269        await asyncio.to_thread(media_controller.send_message, data=queuedata, inc_session_id=True)
270
271    async def poll(self) -> None:
272        """Poll player for state updates."""
273        # only update status of media controller if media controller is active
274        if not self.cc.media_controller.is_active:
275            return
276        try:
277            now = time.time()
278            if (now - self.last_poll) >= 60:
279                self.last_poll = now
280                await asyncio.to_thread(self.cc.media_controller.update_status)
281        except ConnectionResetError as err:
282            raise PlayerUnavailableError from err
283
284    async def on_unload(self) -> None:
285        """Handle logic when the player is unloaded from the Player controller."""
286        await super().on_unload()
287        self.cancel_pending_app_quit()
288        self.mz_controller = None
289        if self.status_listener is not None:
290            self.status_listener.invalidate()
291        self.status_listener = None
292        self.logger.debug("Disconnecting from chromecast socket %s", self.display_name)
293        if self.mass.closing:
294            # Non-blocking disconnect: close socket, don't wait for thread.
295            # Socket threads are daemon threads and die on process exit.
296            # Blocking disconnect can stall shutdown if threads are slow to exit.
297            self.cc.disconnect(0)
298        else:
299            await asyncio.to_thread(self.cc.disconnect, 10)
300
301    ### Callbacks from Chromecast Statuslistener
302
303    def on_new_cast_status(self, status: CastStatus) -> None:
304        """Handle updated CastStatus (called from pychromecast socket thread)."""
305        if status is None or self.mass.closing:
306            return
307        # Dispatch to event loop for thread-safe attribute mutation
308        self.mass.loop.call_soon_threadsafe(self._handle_cast_status, status)
309
310    def on_new_media_status(self, status: MediaStatus) -> None:
311        """Handle updated MediaStatus (called from pychromecast socket thread)."""
312        if self.mass.closing:
313            return
314        # Dispatch to event loop for thread-safe attribute mutation
315        self.mass.loop.call_soon_threadsafe(self._handle_media_status, status)
316
317    def on_load_media_failed(self, queue_item_id: int, error_code: int) -> None:
318        """Handle a failed media load (called from pychromecast socket thread)."""
319        if self.mass.closing:
320            return
321        self.mass.loop.call_soon_threadsafe(
322            self._handle_load_media_failed, queue_item_id, error_code
323        )
324
325    def on_new_connection_status(self, status: ConnectionStatus) -> None:
326        """Handle updated ConnectionStatus (called from pychromecast socket thread)."""
327        if self.mass.closing:
328            return
329        # Dispatch to event loop for thread-safe attribute mutation
330        self.mass.loop.call_soon_threadsafe(self._handle_connection_status, status)
331
332    def on_player_media_updated(self) -> None:
333        """Handle callback when the current media of the player is updated."""
334        if self.powered is False:
335            return
336        if not self.cc.media_controller.status.player_is_playing:
337            return
338        if self.active_cast_group:
339            return
340        if self._attr_playback_state != PlaybackState.PLAYING:
341            return
342        if not (current_media := self.state.current_media):
343            return
344        if not (
345            (self._attr_current_media and "/flow/" in self._attr_current_media.uri)
346            or current_media.media_type
347            in (
348                MediaType.RADIO,
349                MediaType.AUDIO_SOURCE,
350            )
351        ):
352            # only update metadata for streams without known duration
353            return
354
355        async def update_flow_metadata() -> None:
356            """Update the metadata of a cast player running the flow (or radio) stream."""
357            media_controller = self.cc.media_controller
358            # update metadata of current item chromecast
359            title = current_media.title or "Music Assistant"
360            artist = current_media.artist or ""
361            album = current_media.album or ""
362            image_url = current_media.image_url or MASS_LOGO_ONLINE
363            flow_meta_checksum = f"{current_media.uri}-{album}-{artist}-{title}-{image_url}"
364            if self.flow_meta_checksum != flow_meta_checksum:
365                # only update if something changed
366                self.flow_meta_checksum = flow_meta_checksum
367                queuedata = {
368                    "type": "PLAY",
369                    "mediaSessionId": media_controller.status.media_session_id,
370                    "customData": {
371                        "metadata": {
372                            "metadataType": 3,
373                            "albumName": album,
374                            "songName": title,
375                            "artist": artist,
376                            "title": title,
377                            "images": [{"url": image_url}],
378                        }
379                    },
380                }
381                await asyncio.to_thread(
382                    media_controller.send_message, data=queuedata, inc_session_id=True
383                )
384
385            if len(getattr(media_controller.status, "items", [])) < 2:
386                # In flow mode, all queue tracks are sent to the player as continuous stream.
387                # add a special 'command' item to the queue
388                # this allows for on-player next buttons/commands to still work
389                cmd_next_url = self.mass.streams.get_command_url(self.player_id, "next")
390                msg = {
391                    "type": "QUEUE_INSERT",
392                    "mediaSessionId": media_controller.status.media_session_id,
393                    "items": [
394                        {
395                            "media": {
396                                "contentId": cmd_next_url,
397                                "customData": {
398                                    "uri": cmd_next_url,
399                                    "queue_item_id": cmd_next_url,
400                                },
401                                "contentType": "audio/flac",
402                                "streamType": STREAM_TYPE_LIVE,
403                                "metadata": {},
404                            },
405                            "autoplay": True,
406                            "startTime": 0,
407                            "preloadTime": 0,
408                        }
409                    ],
410                }
411                await asyncio.to_thread(
412                    media_controller.send_message, data=msg, inc_session_id=True
413                )
414
415        self.mass.create_task(update_flow_metadata())
416
417    @staticmethod
418    def _is_google_device(cast_info: ChromecastInfo) -> bool:
419        """
420        Check if a device is a Google device with native Cast support.
421
422        Google devices (Chromecast, Nest, Google Home) have native Cast support
423        and should be exposed as PlayerType.PLAYER. Non-Google devices with Cast
424        support should be exposed as PlayerType.PROTOCOL.
425        """
426        if not cast_info.manufacturer:
427            # If no manufacturer, check model name for Google devices
428            model = cast_info.model_name.lower() if cast_info.model_name else ""
429            return any(google in model for google in ("chromecast", "google", "nest", "home"))
430        return cast_info.manufacturer.lower() in ("google", "google inc.")
431
432    async def _launch_app(self) -> None:
433        """Launch the configured Media Receiver App on a Chromecast."""
434        self.cancel_pending_app_quit()
435        if self.config.get_value(CONF_USE_MASS_APP, True):
436            app_id = MASS_APP_ID
437        else:
438            app_id = APP_MEDIA_RECEIVER
439
440        # compare against the configured app, not any compatible one: otherwise the
441        # use_mass_app setting is ignored for as long as the other app is running.
442        # a sent quit clears the reported app id only once the receiver answers, so
443        # skipping the launch then would load into a session that is being torn down
444        if self.cc.app_id == app_id and not self.app_quit_sent:
445            return  # the configured receiver app is already active
446
447        event = asyncio.Event()
448        launched = False
449
450        def launched_callback(success: bool, response: dict[str, Any] | None) -> None:  # noqa: ARG001
451            nonlocal launched
452            launched = success
453            self.mass.loop.call_soon_threadsafe(event.set)
454
455        def launch() -> None:
456            self.logger.debug("Launching App %s.", app_id)
457            self.cc.socket_client.receiver_controller.launch_app(
458                app_id,
459                force_launch=True,
460                callback_function=launched_callback,
461            )
462
463        await self.mass.loop.run_in_executor(None, launch)
464        try:
465            await asyncio.wait_for(event.wait(), timeout=APP_LAUNCH_TIMEOUT)
466        except TimeoutError:
467            # pychromecast resolves the launch callback only on a reply with a matching
468            # request id, so an ignored LAUNCH never completes on its own.
469            self._log_launch_failure(app_id, "the receiver did not respond")
470            raise PlayerUnavailableError(
471                f"Timed out launching app on {self.display_name}",
472                translation_key="app_launch_timeout",
473                translation_owner=self.translation_owner,
474                translation_args=[self.display_name],
475            ) from None
476
477        if not launched:
478            # not via register_launch_error_listener: a registered listener makes
479            # pychromecast skip its retry of a CANCELLED launch
480            failure = self.cc.socket_client.receiver_controller.launch_failure
481            reason = getattr(failure, "reason", None) or "no reason given"
482            self._log_launch_failure(app_id, reason)
483            raise PlayerUnavailableError(
484                f"Launching app on {self.display_name} was refused: {reason}",
485                translation_key="app_launch_refused",
486                translation_owner=self.translation_owner,
487                translation_args=[self.display_name],
488            )
489
490        if self.cc.app_id != app_id:
491            # a receiver can acknowledge the launch without starting the app;
492            # pychromecast applies the status before the callback, so app_id is current
493            self._log_launch_failure(app_id, "the receiver did not start the app")
494            raise PlayerUnavailableError(
495                f"App did not start on {self.display_name}",
496                translation_key="app_launch_refused",
497                translation_owner=self.translation_owner,
498                translation_args=[self.display_name],
499            )
500
501        self.app_quit_sent = False
502
503    def _log_launch_failure(self, app_id: str, reason: str) -> None:
504        """
505        Log a failed receiver app launch and which config option to try instead.
506
507        :param app_id: Cast application id that failed to launch.
508        :param reason: Why the launch failed, as reported by the receiver.
509        """
510        # Cast emulators in TV boxes and phone apps often implement only one of the two
511        # receiver apps, so the opposite setting is the first thing to try.
512        suggestion = "disabling" if app_id == MASS_APP_ID else "enabling"
513        self.logger.warning(
514            "%s did not launch app %s: %s. If this player keeps failing to start "
515            "playback, try %s the 'Use Music Assistant Cast App' option in its settings.",
516            self.display_name,
517            app_id,
518            reason,
519            suggestion,
520        )
521
522    def _schedule_app_release(self) -> None:
523        """
524        Arm the delayed release of the Cast device.
525
526        The device is released a bit later so a follow-up command (such as an
527        announcement, which stops playback first) can reuse the Cast session.
528        Starting a new session makes the device play its 'cast connected' chime.
529        """
530        self.mass.call_later(
531            APP_QUIT_DELAY, self._quit_app_when_unused, task_id=self._app_quit_task_id
532        )
533
534    async def _quit_app_when_unused(self) -> None:
535        """Release the Cast device, unless the receiver app got used again."""
536        if not self.available:
537            return  # the device dropped off in the meantime
538        if self.cc.app_id not in (MASS_APP_ID, APP_MEDIA_RECEIVER):
539            return  # another app took over the device
540        status = self.cc.media_controller.status
541        # a device that ran dry at the end of the flow stream keeps reporting buffering,
542        # which counts as playing. no audio is coming for it, so it is not really in use.
543        ran_dry = (
544            status.player_state == MEDIA_PLAYER_STATE_BUFFERING and self._flow_stream_underrun()
545        )
546        if (status.player_is_playing or status.player_is_paused) and not ran_dry:
547            # something is loaded again, e.g. the keepalive media of a dashboard
548            return
549        await self._quit_app()
550
551    async def _quit_app(self) -> None:
552        """Release the Cast device, so a follow-up launch is not skipped as unnecessary."""
553        # a receiver reports our app as running until it answers the quit, and an
554        # unanswered one leaves it reported for the full request timeout
555        self.app_quit_sent = True
556        await asyncio.to_thread(self.cc.quit_app)
557
558    def _handle_cast_status(self, status: CastStatus) -> None:
559        """Process CastStatus on the event loop thread."""
560        if self.mass.closing:
561            return
562        self.logger.log(
563            VERBOSE_LOG_LEVEL,
564            "Received cast status for %s - app_id: %s - volume: %s",
565            self.display_name,
566            status.app_id,
567            status.volume_level,
568        )
569        # handle stereo pairs
570        if self.cast_info.is_multichannel_group:
571            self._attr_type = PlayerType.STEREO_PAIR
572            self._attr_group_members.clear()
573        # handle cast groups
574        if self.cast_info.is_audio_group and not self.cast_info.is_multichannel_group:
575            assert self.mz_controller is not None  # for type checking
576            self._attr_type = PlayerType.GROUP
577            self._attr_group_members = [str(UUID(x)) for x in self.mz_controller.members]
578            self._attr_static_group_members = self._attr_group_members.copy()
579            self._attr_supported_features = {
580                PlayerFeature.PLAY_MEDIA,
581                # only cast groups can be powered on/off as a group,
582                # so only add the POWER feature for groups
583                PlayerFeature.POWER,
584                PlayerFeature.VOLUME_SET,
585                PlayerFeature.VOLUME_MUTE,
586                PlayerFeature.PAUSE,
587                PlayerFeature.ENQUEUE,
588            }
589            self._attr_powered = self.cc.app_id is not None and self.cc.app_id != IDLE_APP_ID
590
591        # update player status
592        self._attr_name = self.cast_info.friendly_name
593        self._attr_volume_level = round(status.volume_level * 100)
594        self._attr_volume_muted = status.volume_muted
595        self.update_state()
596        if self.on_app_status_changed is not None:
597            try:
598                self.on_app_status_changed(status.app_id)
599            except Exception:
600                self.logger.exception("Error in app status callback for %s", self.display_name)
601
602    def _handle_media_status(self, status: MediaStatus) -> None:
603        """Process MediaStatus on the event loop thread."""
604        self.logger.log(
605            VERBOSE_LOG_LEVEL,
606            "Received media status for %s update: %s",
607            self.display_name,
608            status.player_state,
609        )
610        # handle player playing from a group
611        group_player: ChromecastPlayer | None = None
612        if self.active_cast_group is not None:
613            player_obj = self.mass.players.get_player(self.active_cast_group)
614            if not isinstance(player_obj, ChromecastPlayer):
615                return
616            group_player = player_obj
617            status = group_player.cc.media_controller.status
618
619        # never surface the receiver's dashboard keepalive as actual playback
620        if status.content_id and status.content_id.endswith(DASHBOARD_KEEPALIVE_SUFFIXES):
621            self._reset_to_idle()
622            return
623
624        self._report_media_error(status, group_player)
625
626        # pychromecast reports BUFFERING as 'playing', so a Cast group that underruns the
627        # LIVE flow stream at EOF never goes idle. Treat that case as idle so the queue
628        # can resume/restart.
629        flow_underrun = (
630            status.player_state == MEDIA_PLAYER_STATE_BUFFERING and self._flow_stream_underrun()
631        )
632        is_playing = status.player_is_playing and not flow_underrun
633        is_idle = status.player_is_idle or flow_underrun
634
635        self._update_playback_state(status, is_playing)
636        self._update_elapsed_time(status, is_playing)
637        self._update_active_source(group_player)
638        self._update_current_media(status, is_idle)
639        self._update_multichannel_group_members()
640        self.update_state()
641
642    def _reset_to_idle(self) -> None:
643        """Drop all playback state and publish the player as idle."""
644        self._attr_playback_state = PlaybackState.IDLE
645        self._attr_current_media = None
646        self._attr_active_source = None
647        self._attr_elapsed_time = 0
648        self._attr_elapsed_time_last_updated = time.time()
649        self.update_state()
650
651    def _report_media_error(
652        self, status: MediaStatus, group_player: ChromecastPlayer | None
653    ) -> None:
654        """
655        Log a media error reported by the receiver, at most once per incident.
656
657        Such an error (e.g. after a failed LOAD) otherwise only shows as a silent
658        return to idle. Any other status ends the incident, so a later error is
659        reported again.
660
661        :param status: Media status as reported by the receiver.
662        :param group_player: Cast group player whose status is being followed, if any.
663        """
664        if not (status.player_is_idle and status.idle_reason == "ERROR"):
665            self._media_error_reported = False
666            return
667        # a group forwards its status to every member, so only the group
668        # player itself reports the error
669        if group_player is not None:
670            return
671        if self._media_error_reported or self._flow_stream_underrun():
672            return
673        self._media_error_reported = True
674        self.logger.warning(
675            "%s reported a media playback error for %s",
676            self.display_name,
677            status.content_id or "the loaded media",
678        )
679
680    def _update_playback_state(self, status: MediaStatus, is_playing: bool) -> None:
681        """
682        Apply the reported playback state, releasing the device once playback ended.
683
684        :param status: Media status as reported by the receiver.
685        :param is_playing: Whether the receiver is really playing audio.
686        """
687        prev_state = self._attr_playback_state
688        if is_playing:
689            self._attr_playback_state = PlaybackState.PLAYING
690            self.set_current_media(uri=status.content_id or "", clear_all=True)
691        elif status.player_is_paused:
692            self._attr_playback_state = PlaybackState.PAUSED
693            # dropped so the metadata update below builds a fresh PlayerMedia instead of
694            # merging the new track into the previous one, which only truthy fields replace
695            self._attr_current_media = None
696        else:
697            self._attr_playback_state = PlaybackState.IDLE
698            self._attr_current_media = None
699            if (
700                prev_state in (PlaybackState.PLAYING, PlaybackState.PAUSED)
701                and self.type != PlayerType.GROUP
702                and self.active_cast_group is None
703            ):
704                # Playback that ends on its own never gets a stop command (the queue ran
705                # out, or an announcement finished), so without this the device would stay
706                # claimed forever. A cast group is left alone: quitting its app is what its
707                # power control does, and a group member follows the group's session.
708                self._schedule_app_release()
709
710    def _update_elapsed_time(self, status: MediaStatus, is_playing: bool) -> None:
711        """
712        Apply the playback position reported by the receiver.
713
714        :param status: Media status as reported by the receiver.
715        :param is_playing: Whether the receiver is really playing audio.
716        """
717        self._attr_elapsed_time_last_updated = time.time()
718        self._attr_elapsed_time = (
719            status.adjusted_current_time if is_playing else status.current_time
720        )
721
722    def _update_active_source(self, group_player: ChromecastPlayer | None) -> None:
723        """
724        Apply the active source, exposing a foreign Cast app as a selectable source.
725
726        :param group_player: Cast group player whose status is being followed, if any.
727        """
728        if group_player:
729            self._attr_active_source = group_player.active_source or group_player.player_id
730        elif self.cc.app_id in (MASS_APP_ID, APP_MEDIA_RECEIVER, SENDSPIN_CAST_APP_ID):
731            self._attr_active_source = None
732        elif self.cc.app_id in (None, IDLE_APP_ID):
733            # a released device sits on its backdrop with no app running, which is
734            # not something the user can select as a source
735            self._attr_active_source = None
736        else:
737            app_name = self.cc.app_display_name or "Unknown App"
738            app_id = app_name.lower().replace(" ", "_")
739            self._attr_active_source = app_id
740            has_controls = app_name in ("Spotify", "Qobuz", "YouTube Music", "Deezer", "Tidal")
741            if not any(source.id == app_id for source in self._attr_source_list):
742                self._attr_source_list.append(
743                    PlayerSource(
744                        id=app_id,
745                        name=app_name,
746                        passive=True,
747                        can_play_pause=has_controls,
748                        can_seek=has_controls,
749                        can_next_previous=has_controls,
750                    )
751                )
752
753    def _update_current_media(self, status: MediaStatus, is_idle: bool) -> None:
754        """
755        Apply the media metadata reported by the receiver.
756
757        :param status: Media status as reported by the receiver.
758        :param is_idle: Whether the receiver has nothing playing.
759        """
760        if status.content_id and not is_idle:
761            self.set_current_media(
762                uri=status.content_id,
763                title=status.title,
764                artist=status.artist,
765                album=status.album_name,
766                image_url=status.images[0].url if status.images else None,
767                duration=int(status.duration) if status.duration is not None else None,
768                media_type=MediaType.TRACK,
769            )
770        else:
771            self._attr_current_media = None
772
773    def _update_multichannel_group_members(self) -> None:
774        """
775        Mirror this group's playback state onto its multichannel members.
776
777        A stereo pair within a cast group receives no updates from the group itself,
778        so its state has to be pushed out manually.
779        """
780        if self.type != PlayerType.GROUP or not self.powered:
781            return
782        for child_id in self.group_members:
783            if child := self.mass.players.get_player(child_id):
784                assert isinstance(child, ChromecastPlayer)  # for type checking
785                if not child.cast_info.is_multichannel_group:
786                    continue
787                child._attr_playback_state = self._attr_playback_state
788                child._attr_current_media = self._attr_current_media
789                child._attr_elapsed_time = self._attr_elapsed_time
790                child._attr_elapsed_time_last_updated = self._attr_elapsed_time_last_updated
791                child._attr_active_source = self.active_source
792                child.update_state()
793
794    def _handle_load_media_failed(self, queue_item_id: int, error_code: int) -> None:
795        """Process a failed media load on the event loop thread."""
796        self._media_error_reported = True
797        self.logger.warning(
798            "%s failed to load media (queue item %s): error %s (%s)",
799            self.display_name,
800            queue_item_id,
801            error_code,
802            MEDIA_PLAYER_ERROR_CODES.get(error_code, "unknown code"),
803        )
804
805    def _handle_connection_status(self, status: ConnectionStatus) -> None:
806        """Process ConnectionStatus on the event loop thread."""
807        self.logger.log(
808            VERBOSE_LOG_LEVEL,
809            "Received connection status update for %s - status: %s",
810            self.display_name,
811            status.status,
812        )
813
814        if status.status == CONNECTION_STATUS_DISCONNECTED:
815            self._attr_available = False
816            self.update_state()
817            if self.on_app_status_changed is not None:
818                try:
819                    self.on_app_status_changed(None)
820                except Exception:
821                    self.logger.exception("Error in app status callback for %s", self.display_name)
822            return
823
824        new_available = status.status == CONNECTION_STATUS_CONNECTED
825        if new_available != self.available:
826            self.logger.debug(
827                "[%s] Cast device availability changed: %s",
828                self.cast_info.friendly_name,
829                status.status,
830            )
831            self._attr_available = new_available
832            self._attr_device_info.model = self.cast_info.model_name
833            self._attr_device_info.manufacturer = self.cast_info.manufacturer or ""
834            # Groups share a member device's IP/MAC, skip to avoid false protocol matches
835            if not self.cast_info.is_audio_group:
836                self._attr_device_info.add_identifier(
837                    IdentifierType.IP_ADDRESS, self.cast_info.host
838                )
839                if is_valid_mac_address(self.cast_info.mac_address):
840                    self._attr_device_info.add_identifier(
841                        IdentifierType.MAC_ADDRESS, self.cast_info.mac_address
842                    )
843            self._attr_device_info.add_identifier(IdentifierType.UUID, str(self.cast_info.uuid))
844            self._attr_device_info.add_identifier(
845                IdentifierType.CAST_UUID, str(self.cast_info.uuid)
846            )
847            self.update_state()
848
849            if new_available and self.type == PlayerType.PLAYER:
850                # Poll current group status
851                provider = cast("ChromecastProvider", self.provider)
852                mz_mgr = provider.mz_mgr
853                assert mz_mgr is not None  # for type checking
854                for group_uuid in mz_mgr.get_multizone_memberships(self.cast_info.uuid):
855                    group_media_controller = mz_mgr.get_multizone_mediacontroller(UUID(group_uuid))
856                    if not group_media_controller:
857                        continue
858
859    def _create_cc_media_item(self, media: PlayerMedia, stream_url: str) -> dict[str, Any]:
860        """Create CC media item from MA PlayerMedia."""
861        # Always use LIVE stream type because MA streams are real-time encoded by FFmpeg,
862        # so they are not seekable and don't have a known content length.
863        stream_type = STREAM_TYPE_LIVE
864        metadata = {
865            "metadataType": 3,
866            "albumName": media.album or "",
867            "songName": media.title or "",
868            "artist": media.artist or "",
869            "title": media.title or "",
870            "images": [{"url": media.image_url}] if media.image_url else None,
871        }
872        file_ext = stream_url.split("?", maxsplit=1)[0].rsplit(".", maxsplit=1)[-1].lower()
873        return {
874            "contentId": stream_url,
875            "customData": {
876                "uri": media.uri,
877                "queue_item_id": media.queue_item_id or stream_url,
878            },
879            "contentType": f"audio/{file_ext}",
880            "streamType": stream_type,
881            "metadata": metadata,
882            "duration": media.stream_duration or media.duration,
883        }
884
885    def _flow_stream_underrun(self) -> bool:
886        """Return whether the active queue's flow stream has been fully consumed."""
887        # Resolve the queue-owning player: a Cast group child mirrors the group's
888        # status, and a Cast exposed as a protocol player is wrapped by a universal
889        # player that owns the queue. Only a native/standalone Cast owns its own queue.
890        queue_id = self.active_cast_group or self.protocol_parent_id or self.player_id
891        return self.mass.player_queues.flow_stream_finished(queue_id)
892