forked from platypush/platypush
566 lines
19 KiB
Python
566 lines
19 KiB
Python
import enum
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import functools
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import os
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import queue
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import re
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from typing import Optional, List, Dict, Union
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import requests
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import subprocess
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import tempfile
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import threading
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from platypush.config import Config
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from platypush.context import get_plugin, get_backend
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from platypush.plugins import Plugin, action
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class PlayerState(enum.Enum):
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STOP = 'stop'
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PLAY = 'play'
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PAUSE = 'pause'
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IDLE = 'idle'
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class MediaPlugin(Plugin):
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"""
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Generic plugin to interact with a media player.
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Requires:
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* A media player installed (supported so far: mplayer, vlc, mpv, omxplayer, chromecast)
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* **python-libtorrent** (``pip install python-libtorrent``), optional, for torrent support over native library
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* **youtube-dl** installed on your system (see your distro instructions), optional for YouTube support
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* **requests** (``pip install requests``), optional, for local files over HTTP streaming supporting
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* **ffmpeg**,optional, to get media files metadata
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To start the local media stream service over HTTP you will also need the
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:class:`platypush.backend.http.HttpBackend` backend enabled.
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"""
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# A media plugin can either be local or remote (e.g. control media on
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# another device)
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_is_local = True
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_youtube_fifo = os.path.join(tempfile.gettempdir(), 'youtube_video.sock')
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_NOT_IMPLEMENTED_ERR = NotImplementedError(
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'This method must be implemented in a derived class')
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# Supported audio extensions
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audio_extensions = {
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'3gp', 'aa', 'aac', 'aax', 'act', 'aiff', 'amr', 'ape', 'au',
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'awb', 'dct', 'dss', 'dvf', 'flac', 'gsm', 'iklax', 'ivs',
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'm4a', 'm4b', 'm4p', 'mmf', 'mp3', 'mpc', 'msv', 'nmf', 'nsf',
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'ogg,', 'opus', 'ra,', 'raw', 'sln', 'tta', 'vox', 'wav',
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'wma', 'wv', 'webm', '8svx',
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}
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# Supported video extensions
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video_extensions = {
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'webm', 'mkv', 'flv', 'flv', 'vob', 'ogv', 'ogg', 'drc', 'gif',
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'gifv', 'mng', 'avi', 'mts', 'm2ts', 'mov', 'qt', 'wmv', 'yuv',
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'rm', 'rmvb', 'asf', 'amv', 'mp4', 'm4p', 'm4v', 'mpg', 'mp2',
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'mpeg', 'mpe', 'mpv', 'mpg', 'mpeg', 'm2v', 'm4v', 'svi',
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'3gp', '3g2', 'mxf', 'roq', 'nsv', 'flv', 'f4v', 'f4p', 'f4a',
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'f4b',
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}
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_supported_media_plugins = {'media.mplayer', 'media.omxplayer', 'media.mpv',
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'media.vlc', 'media.chromecast'}
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_supported_media_types = ['file', 'torrent', 'youtube']
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_default_search_timeout = 60 # 60 seconds
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def __init__(self,
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media_dirs: Optional[List[str]] = None,
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download_dir: Optional[str] = None,
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env: Optional[Dict[str, str]] = None,
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volume: Optional[Union[float, int]] = None,
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*args, **kwargs):
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"""
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:param media_dirs: Directories that will be scanned for media files when
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a search is performed (default: none)
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:param download_dir: Directory where external resources/torrents will be
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downloaded (default: ~/Downloads)
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:param env: Environment variables key-values to pass to the
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player executable (e.g. DISPLAY, XDG_VTNR, PULSE_SINK etc.)
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:param volume: Default volume for the player (default: None, maximum volume).
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"""
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super().__init__(**kwargs)
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if media_dirs is None:
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media_dirs = []
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player = None
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player_config = {}
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if self.__class__.__name__ == 'MediaPlugin':
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# Abstract class, initialize with the default configured player
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for plugin in Config.get_plugins().keys():
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if plugin in self._supported_media_plugins:
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player = plugin
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if get_plugin(player).is_local():
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# Local players have priority as default if configured
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break
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else:
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player = self # Derived concrete class
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if not player:
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raise AttributeError('No media plugin configured')
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media_dirs = media_dirs or player_config.get('media_dirs', [])
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if self.__class__.__name__ == 'MediaPlugin':
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# Populate this plugin with the actions of the configured player
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plugin = get_plugin(player)
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for act in plugin.registered_actions:
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setattr(self, act, getattr(plugin, act))
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self.registered_actions.add(act)
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self._env = env or {}
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self.media_dirs = set(
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filter(
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lambda _: os.path.isdir(_),
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map(
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lambda _: os.path.abspath(os.path.expanduser(_)),
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media_dirs
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)
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)
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)
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self.download_dir = os.path.abspath(os.path.expanduser(
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download_dir or player_config.get('download_dir') or
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os.path.join((os.path.expanduser('~') or self._env.get('HOME') or '/'), 'Downloads')))
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if not os.path.isdir(self.download_dir):
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os.makedirs(self.download_dir, exist_ok=True)
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self.media_dirs.add(self.download_dir)
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self.volume = volume
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self._videos_queue = []
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self._youtube_proc = None
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@staticmethod
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def _torrent_event_handler(evt_queue):
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def handler(event):
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# More than 5% of the torrent has been downloaded
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if event.args.get('progress', 0) > 5 and event.args.get('files'):
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evt_queue.put(event.args['files'])
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return handler
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def _get_resource(self, resource):
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"""
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:param resource: Resource to play/parse. Supported types:
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* Local files (format: ``file://<path>/<file>``)
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* Remote videos (format: ``https://<url>/<resource>``)
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* YouTube videos (format: ``https://www.youtube.com/watch?v=<id>``)
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* Torrents (format: Magnet links, Torrent URLs or local Torrent files)
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"""
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if resource.startswith('youtube:') \
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or resource.startswith('https://youtu.be/') \
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or resource.startswith('https://www.youtube.com/watch?v='):
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m = re.match('youtube:video:(.*)', resource)
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if not m:
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m = re.match('https://youtu.be/(.*)', resource)
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if m:
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resource = 'https://www.youtube.com/watch?v={}'.format(m.group(1))
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if self.__class__.__name__ == 'MediaChromecastPlugin':
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# The Chromecast has already its native way to handle YouTube
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return resource
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self.stream_youtube_to_fifo(resource)
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resource = 'file://' + self._youtube_fifo
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elif resource.startswith('magnet:?'):
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self.logger.info('Downloading torrent {} to {}'.format(
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resource, self.download_dir))
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torrents = get_plugin('torrent')
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evt_queue = queue.Queue()
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torrents.download(resource, download_dir=self.download_dir, _async=True, is_media=True,
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event_hndl=self._torrent_event_handler(evt_queue))
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resources = [f for f in evt_queue.get()]
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if resources:
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self._videos_queue = sorted(resources)
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resource = self._videos_queue.pop(0)
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else:
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raise RuntimeError('No media file found in torrent {}'.format(resource))
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return resource
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@staticmethod
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def _stop_torrent():
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torrents = get_plugin('torrent')
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torrents.quit()
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@action
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def play(self, resource, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def pause(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def stop(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def quit(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def voldown(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def volup(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def back(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def forward(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def next(self):
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""" Play the next item in the queue """
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self.stop()
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if self._videos_queue:
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video = self._videos_queue.pop(0)
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return self.play(video)
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@action
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def toggle_subtitles(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def set_subtitles(self, filename, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def remove_subtitles(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def is_playing(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def load(self, resource, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def mute(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def seek(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def set_position(self, *args, **kwargs):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def set_volume(self, volume):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def status(self):
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raise self._NOT_IMPLEMENTED_ERR
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@action
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def search(self, query, types=None, queue_results=False, autoplay=False,
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search_timeout=_default_search_timeout):
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"""
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Perform a video search.
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:param query: Query string, video name or partial name
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:type query: str
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:param types: Video types to search (default: ``["youtube", "file", "torrent"]``)
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:type types: list
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:param queue_results: Append the results to the current playing queue (default: False)
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:type queue_results: bool
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:param autoplay: Play the first result of the search (default: False)
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:type autoplay: bool
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:param search_timeout: Search timeout (default: 60 seconds)
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:type search_timeout: float
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"""
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results = {}
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results_queues = {}
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worker_threads = {}
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if types is None:
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types = self._supported_media_types
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for media_type in types:
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results[media_type] = []
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results_queues[media_type] = queue.Queue()
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search_hndl = self._get_search_handler_by_type(media_type)
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worker_threads[media_type] = threading.Thread(
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target=self._search_worker(query=query, search_hndl=search_hndl,
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results_queue=results_queues[media_type]))
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worker_threads[media_type].start()
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for media_type in types:
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try:
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results[media_type].extend(
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results_queues[media_type].get(timeout=search_timeout))
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except queue.Empty:
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self.logger.warning('Search for "{}" media type {} timed out'.
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format(query, media_type))
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flattened_results = []
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for media_type in self._supported_media_types:
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if media_type in results:
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for result in results[media_type]:
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result['type'] = media_type
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flattened_results += results[media_type]
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results = flattened_results
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if results:
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if queue_results:
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self._videos_queue = [_['url'] for _ in results]
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if autoplay:
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self.play(self._videos_queue.pop(0))
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elif autoplay:
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self.play(results[0]['url'])
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return results
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@staticmethod
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def _search_worker(query, search_hndl, results_queue):
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def thread():
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results_queue.put(search_hndl.search(query))
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return thread
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def _get_search_handler_by_type(self, search_type):
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if search_type == 'file':
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from .search import LocalMediaSearcher
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return LocalMediaSearcher(self.media_dirs)
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if search_type == 'torrent':
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from .search import TorrentMediaSearcher
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return TorrentMediaSearcher()
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if search_type == 'youtube':
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from .search import YoutubeMediaSearcher
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return YoutubeMediaSearcher()
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self.logger.warning('Unsupported search type: {}'.format(search_type))
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@classmethod
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def _is_video_file(cls, filename):
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return filename.lower().split('.')[-1] in cls.video_extensions
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@classmethod
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def _is_audio_file(cls, filename):
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return filename.lower().split('.')[-1] in cls.audio_extensions
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@action
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def start_streaming(self, media, subtitles=None, download=False):
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"""
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Starts streaming local media over the specified HTTP port.
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The stream will be available to HTTP clients on
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`http://{this-ip}:{http_backend_port}/media/<media_id>`
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:param media: Media to stream
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:type media: str
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:param subtitles: Path or URL to the subtitles track to be used
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:type subtitles: str
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:param download: Set to True if you prefer to download the file from
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the streaming link instead of streaming it
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:type download: bool
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:return: dict containing the streaming URL.Example:
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.. code-block:: json
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{
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"id": "0123456abcdef.mp4",
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"source": "file:///mnt/media/movies/movie.mp4",
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"mime_type": "video/mp4",
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"url": "http://192.168.1.2:8008/media/0123456abcdef.mp4"
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}
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"""
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import requests
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http = get_backend('http')
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if not http:
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self.logger.warning('Unable to stream {}: HTTP backend unavailable'.
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format(media))
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return
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self.logger.info('Starting streaming {}'.format(media))
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response = requests.put('{url}/media{download}'.format(
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url=http.local_base_url, download='?download' if download else ''),
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json={'source': media, 'subtitles': subtitles})
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if not response.ok:
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self.logger.warning('Unable to start streaming: {}'.
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format(response.text or response.reason))
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return None, (response.text or response.reason)
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return response.json()
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@action
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def stop_streaming(self, media_id):
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import requests
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http = get_backend('http')
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if not http:
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self.logger.warning('Cannot unregister {}: HTTP backend unavailable'.
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format(media_id))
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return
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response = requests.delete('{url}/media/{id}'.
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format(url=http.local_base_url, id=media_id))
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if not response.ok:
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self.logger.warning('Unable to unregister media_id {}: {}'.format(
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media_id, response.reason))
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return
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return response.json()
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@staticmethod
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def _youtube_search_api(query):
|
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return [
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{
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'url': 'https://www.youtube.com/watch?v=' + item['id']['videoId'],
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'title': item.get('snippet', {}).get('title', '<No Title>'),
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}
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for item in get_plugin('google.youtube').search(query=query).output
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if item.get('id', {}).get('kind') == 'youtube#video'
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]
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@staticmethod
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def _youtube_search_html_parse(query):
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from .search import YoutubeMediaSearcher
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# noinspection PyProtectedMember
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return YoutubeMediaSearcher()._youtube_search_html_parse(query)
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|
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def stream_youtube_to_fifo(self, url):
|
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if self._youtube_proc:
|
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self.logger.info('Terminating existing YouTube process')
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self._youtube_proc.terminate()
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self._youtube_proc = None
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|
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if os.path.exists(self._youtube_fifo):
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os.unlink(self._youtube_fifo)
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os.mkfifo(self._youtube_fifo, 0o644)
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|
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def _youtube_dl_thread():
|
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self._youtube_proc = subprocess.Popen(['youtube-dl', '-f', 'best', '-o', self._youtube_fifo, url])
|
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self._youtube_proc.wait()
|
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self._youtube_proc = None
|
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|
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threading.Thread(target=_youtube_dl_thread).start()
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|
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@action
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def get_youtube_url(self, url):
|
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m = re.match('youtube:video:(.*)', url)
|
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if m:
|
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url = 'https://www.youtube.com/watch?v={}'.format(m.group(1))
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proc = subprocess.Popen(['youtube-dl', '-f', 'best', '-g', url], stdout=subprocess.PIPE)
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raw_url = proc.stdout.read().decode("utf-8", "strict")[:-1]
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return raw_url if raw_url else url
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|
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@action
|
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def get_youtube_info(self, url):
|
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m = re.match('youtube:video:(.*)', url)
|
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if m:
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url = 'https://www.youtube.com/watch?v={}'.format(m.group(1))
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proc = subprocess.Popen(['youtube-dl', '-j', url], stdout=subprocess.PIPE)
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return proc.stdout.read().decode("utf-8", "strict")[:-1]
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|
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@action
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def get_media_file_duration(self, filename):
|
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"""
|
|
Get the duration of a media file in seconds. Requires ffmpeg
|
|
"""
|
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|
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if filename.startswith('file://'):
|
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filename = filename[7:]
|
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|
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result = subprocess.Popen(["ffprobe", filename], stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
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|
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return functools.reduce(
|
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lambda t, t_i: t + t_i,
|
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[float(t) * pow(60, i) for (i, t) in enumerate(re.search(
|
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'^Duration:\s*([^,]+)', [x.decode()
|
|
for x in result.stdout.readlines()
|
|
if "Duration" in x.decode()].pop().strip()
|
|
).group(1).split(':')[::-1])]
|
|
)
|
|
|
|
@action
|
|
def download(self, url, filename=None, directory=None):
|
|
"""
|
|
Download a media URL
|
|
|
|
:param url: Media URL
|
|
:param filename: Media filename (default: URL filename)
|
|
:param directory: Destination directory (default: download_dir)
|
|
:return: The absolute path to the downloaded file
|
|
"""
|
|
|
|
if not filename:
|
|
filename = url.split('/')[-1]
|
|
if not directory:
|
|
directory = self.download_dir
|
|
|
|
path = os.path.join(directory, filename)
|
|
content = requests.get(url).content
|
|
|
|
with open(path, 'wb') as f:
|
|
f.write(content)
|
|
|
|
return path
|
|
|
|
def is_local(self):
|
|
return self._is_local
|
|
|
|
@staticmethod
|
|
def get_subtitles_file(subtitles):
|
|
if not subtitles:
|
|
return
|
|
|
|
if subtitles.startswith('file://'):
|
|
subtitles = subtitles[len('file://'):]
|
|
if os.path.isfile(subtitles):
|
|
return os.path.abspath(subtitles)
|
|
else:
|
|
content = requests.get(subtitles).content
|
|
f = tempfile.NamedTemporaryFile(prefix='media_subs_',
|
|
suffix='.srt', delete=False)
|
|
|
|
with f:
|
|
f.write(content)
|
|
return f.name
|
|
|
|
|
|
# vim:sw=4:ts=4:et:
|