Implemented support for casting local media through the localstream script
This commit is contained in:
Fabio Manganiello
parent
d15b21ddfa
commit
6713ce0f03
3 changed files with 88 additions and 11 deletions
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@ -2,6 +2,7 @@ import enum
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import os
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import re
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import subprocess
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import threading
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import urllib.request
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import urllib.parse
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@ -9,6 +10,7 @@ import urllib.parse
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from platypush.config import Config
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from platypush.context import get_plugin
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from platypush.plugins import Plugin, action
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from platypush.utils import get_ip_or_hostname
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class PlayerState(enum.Enum):
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STOP = 'stop'
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@ -25,12 +27,24 @@ class MediaPlugin(Plugin):
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* A media player installed (supported so far: mplayer, omxplayer, chromecast)
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* **python-libtorrent** (``pip install python-libtorrent``), optional for Torrent support
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* **youtube-dl** installed on your system (see your distro instructions), optional for YouTube support
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To start the local media stream service over HTTP:
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* **nodejs** installed on your system
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* **express** module (``npm install express``)
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* **mime-types** module (``npm install mime-types``)
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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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# Default port for the local resources HTTP streaming service
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_default_streaming_port = 8989
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_local_stream_bin = os.path.join(os.path.dirname(__file__), 'bin',
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'localstream')
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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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@ -57,7 +71,7 @@ class MediaPlugin(Plugin):
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'media.chromecast'}
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def __init__(self, media_dirs=[], download_dir=None, env=None,
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*args, **kwargs):
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streaming_port=_default_streaming_port, *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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@ -70,6 +84,10 @@ class MediaPlugin(Plugin):
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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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:type env: dict
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:param streaming_port: Port to be used for streaming local resources
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over HTTP (default: 8989)
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:type streaming_port: int
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"""
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super().__init__(*args, **kwargs)
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@ -121,6 +139,8 @@ class MediaPlugin(Plugin):
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self.media_dirs.add(self.download_dir)
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self._videos_queue = []
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self._streaming_port = streaming_port
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self._streaming_proc = None
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def _get_resource(self, resource):
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"""
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@ -331,6 +351,50 @@ class MediaPlugin(Plugin):
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return self._youtube_search_html_parse(query=query)
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@action
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def start_streaming(self, media):
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if self._streaming_proc:
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self.logger.info('A streaming process is already running, ' +
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'terminating it first')
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self.stop_streaming()
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self._streaming_proc = subprocess.Popen(
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[self._local_stream_bin, media, str(self._streaming_port)],
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stdin=subprocess.PIPE, stdout=subprocess.PIPE
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)
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threading.Thread(target=self._streaming_process_monitor(media)).start()
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url = 'http://{}:{}/video'.format(get_ip_or_hostname(),
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self._streaming_port)
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self.logger.info('Starting streaming {} on {}'.format(media, url))
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return { 'url': url }
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@action
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def stop_streaming(self):
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if not self._streaming_proc:
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self.logger.info('No streaming process found')
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return
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self._streaming_proc.terminate()
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self._streaming_proc.wait()
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try: self._streaming_proc.kill()
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except: pass
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self._streaming_proc = None
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def _streaming_process_monitor(self, media):
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def _thread():
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if not self._streaming_proc:
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return
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self._streaming_proc.wait()
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try: self.stop_streaming()
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except: pass
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return _thread
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def _youtube_search_api(self, query):
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return [
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{
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@ -376,6 +440,7 @@ class MediaPlugin(Plugin):
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return proc.stdout.read().decode("utf-8", "strict")[:-1]
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def is_local(self):
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return self._is_local
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@ -7,6 +7,7 @@ from pychromecast.controllers.youtube import YouTubeController
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from platypush.context import get_plugin
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from platypush.plugins import Plugin, action
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from platypush.plugins.media import MediaPlugin
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from platypush.utils import get_mime_type
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class MediaChromecastPlugin(MediaPlugin):
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@ -172,29 +173,26 @@ class MediaChromecastPlugin(MediaPlugin):
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return hndl.play_video(yt)
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resource = self._get_resource(resource)
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if resource.startswith('magnet:?'):
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player_args = { 'chromecast': cast }
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return get_plugin('media.webtorrent').play(resource,
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player='chromecast',
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**player_args)
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# Best effort from the extension
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if not content_type:
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for ext in self.video_extensions:
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if ('.' + ext).lower() in resource.lower():
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content_type = 'video/' + ext
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break
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if resource.startswith('file://'):
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resource = resource[len('file://'):]
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if not content_type:
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for ext in self.audio_extensions:
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if ('.' + ext).lower() in resource.lower():
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content_type = 'audio/' + ext
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break
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content_type = get_mime_type(resource)
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if not content_type:
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raise RuntimeError('content_type required to process media {}'.
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format(resource))
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if os.path.isfile(resource):
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resource = self.start_streaming(resource).output['url']
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self.logger.info('Playing {} on {}'.format(resource, chromecast))
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mc.play_media(resource, content_type, title=title, thumb=image_url,
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@ -4,10 +4,12 @@ import hashlib
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import importlib
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import inspect
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import logging
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import magic
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import os
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import signal
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import socket
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import ssl
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import urllib.request
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logger = logging.getLogger(__name__)
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@ -216,4 +218,16 @@ def get_ip_or_hostname():
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return socket.getfqdn() if ip.startswith('127.') else ip
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def get_mime_type(resource):
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if resource.startswith('file://'):
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resource = resource[len('file://'):]
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if resource.startswith('http://') or resource.startswith('https://'):
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with urllib.request.urlopen(resource) as response:
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return response.info().get_content_type()
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else:
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mime = magic.Magic(mime=True)
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return mime.from_file(resource)
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# vim:sw=4:ts=4:et:
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