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Merge pull request #366 from micro-nova/spotifyd
Use Spotifyd instead of vollibrespot to get latest librespot changes
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| """A module for interfacing with an MPRIS MediaPlayer2 over dbus.""" | ||
|
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| from dataclasses import dataclass | ||
| from enum import Enum, auto | ||
| import json | ||
| from multiprocessing import Process | ||
| import time | ||
| from typing import List | ||
| from dasbus.connection import SessionMessageBus | ||
|
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| from amplipi import utils | ||
|
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|
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| METADATA_MAPPINGS = [ | ||
| ('artist', 'xesam:artist'), | ||
| ('title', 'xesam:title'), | ||
| ('art_url', 'mpris:artUrl'), | ||
| ('album', 'xesam:album') | ||
| ] | ||
|
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| METADATA_REFRESH_RATE = 0.5 | ||
| METADATA_FILE_NAME = "metadata.txt" | ||
|
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| class CommandTypes(Enum): | ||
| PLAY = auto() | ||
| PAUSE = auto() | ||
| NEXT = auto() | ||
| PREVIOUS = auto() | ||
|
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| @dataclass | ||
| class Metadata: | ||
| """A data class for storing metadata on a song.""" | ||
| artist: str = '' | ||
| title: str = '' | ||
| art_url: str = '' | ||
| album: str = '' | ||
| state: str = '' | ||
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|
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| class MPRIS: | ||
| """A class for interfacing with an MPRIS MediaPlayer2 over dbus.""" | ||
|
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| def __init__(self, service_suffix, src) -> None: | ||
| self.mpris = SessionMessageBus().get_proxy( | ||
| service_name = f"org.mpris.MediaPlayer2.{service_suffix}", | ||
| object_path = "/org/mpris/MediaPlayer2", | ||
| interface_name = "org.mpris.MediaPlayer2.Player" | ||
| ) | ||
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| self.capabilities: List[CommandTypes] = [] | ||
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| self.service_suffix = service_suffix | ||
| self.src = src | ||
| self.metadata_path = f'{utils.get_folder("config")}/srcs/{self.src}/{METADATA_FILE_NAME}' | ||
|
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| try: | ||
| with open(self.metadata_path, "w", encoding='utf-8') as f: | ||
| m = Metadata() | ||
| m.state = "Stopped" | ||
| json.dump(m.__dict__, f) | ||
| except Exception as e: | ||
| print (f'Exception clearing metadata file: {e}') | ||
|
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| self.metadata_process = Process(target=self._metadata_reader) | ||
| self.metadata_process.start() | ||
|
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| def play(self) -> None: | ||
| """Plays.""" | ||
| self.mpris.Play() | ||
|
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| def pause(self) -> None: | ||
| """Pauses.""" | ||
| self.mpris.Pause() | ||
|
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| def next(self) -> None: | ||
| """Skips song.""" | ||
| self.mpris.Next() | ||
|
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| def previous(self) -> None: | ||
| """Goes back a song.""" | ||
| self.mpris.Previous() | ||
|
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| def play_pause(self) -> None: | ||
| """Plays or pauses depending on current state.""" | ||
| self.mpris.PlayPause() | ||
|
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| def _load_metadata(self): | ||
| try: | ||
| with open(self.metadata_path, 'r', encoding='utf-8') as f: | ||
| metadata_dict = json.load(f) | ||
| metadata_obj = Metadata() | ||
|
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| for k in metadata_dict.keys(): | ||
| metadata_obj.__dict__[k] = metadata_dict[k] | ||
|
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| return metadata_obj | ||
| except Exception as e: | ||
| print(f"mpris loading metadata at {self.metadata_path} failed: {e}") | ||
| return None | ||
|
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||
|
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| def metadata(self) -> Metadata: | ||
| """Returns metadata from MPRIS.""" | ||
| return self._load_metadata() | ||
|
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| def is_playing(self) -> bool: | ||
| """Playing?""" | ||
| return self._load_metadata().state == 'Playing' | ||
|
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| def is_stopped(self) -> bool: | ||
| """Stopped?""" | ||
| return self._load_metadata().state == 'Stopped' | ||
|
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| def get_capabilities(self) -> List[CommandTypes]: | ||
| """Returns a list of supported commands.""" | ||
|
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| if len(self.capabilities) == 0: | ||
|
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| if self.mpris.CanPlay: | ||
| self.capabilities.append(CommandTypes.PLAY) | ||
|
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| if self.mpris.CanPause: | ||
| self.capabilities.append(CommandTypes.PAUSE) | ||
|
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| if self.mpris.CanGoNext: | ||
| self.capabilities.append(CommandTypes.NEXT) | ||
|
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| if self.mpris.CanGoPrevious: | ||
| self.capabilities.append(CommandTypes.PREVIOUS) | ||
|
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| return self.capabilities | ||
|
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| def __del__(self): | ||
| try: | ||
| self.metadata_process.kill() | ||
| except: | ||
| pass | ||
|
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| def _metadata_reader(self): | ||
| """Method run by the metadata process, also handles playing/paused.""" | ||
|
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| mpris = SessionMessageBus().get_proxy( | ||
| service_name = f"org.mpris.MediaPlayer2.{self.service_suffix}", | ||
| object_path = "/org/mpris/MediaPlayer2", | ||
| interface_name = "org.mpris.MediaPlayer2.Player" | ||
| ) | ||
|
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| m = Metadata() | ||
| m.state = 'Stopped' | ||
|
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| last_sent = m.__dict__ | ||
|
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| while True: | ||
| try: | ||
| raw_metadata = mpris.Metadata | ||
| metadata = {} | ||
|
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| for mapping in METADATA_MAPPINGS: | ||
| try: | ||
| metadata[mapping[0]] = str(raw_metadata[mapping[1]]).strip("[]'") | ||
| except KeyError: | ||
| pass | ||
|
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| metadata['state'] = mpris.PlaybackStatus.strip("'") | ||
|
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| if metadata != last_sent: | ||
| last_sent = metadata | ||
| with open(self.metadata_path, 'w', encoding='utf-8') as metadata_file: | ||
| json.dump(metadata, metadata_file) | ||
|
|
||
| except: | ||
| pass | ||
| time.sleep(1.0/METADATA_REFRESH_RATE) |
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