platypush/platypush/plugins/media/__init__.py

591 lines
20 KiB
Python

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