core/homeassistant/components/ffmpeg.py

89 lines
2.3 KiB
Python

"""
Component that will help set the ffmpeg component.
For more details about this component, please refer to the documentation at
https://home-assistant.io/components/ffmpeg/
"""
import asyncio
import logging
import voluptuous as vol
import homeassistant.helpers.config_validation as cv
DOMAIN = 'ffmpeg'
REQUIREMENTS = ["ha-ffmpeg==1.2"]
_LOGGER = logging.getLogger(__name__)
DATA_FFMPEG = 'ffmpeg'
CONF_INPUT = 'input'
CONF_FFMPEG_BIN = 'ffmpeg_bin'
CONF_EXTRA_ARGUMENTS = 'extra_arguments'
CONF_OUTPUT = 'output'
CONF_RUN_TEST = 'run_test'
DEFAULT_BINARY = 'ffmpeg'
DEFAULT_RUN_TEST = True
CONFIG_SCHEMA = vol.Schema({
DOMAIN: vol.Schema({
vol.Optional(CONF_FFMPEG_BIN, default=DEFAULT_BINARY): cv.string,
vol.Optional(CONF_RUN_TEST, default=DEFAULT_RUN_TEST): cv.boolean,
}),
}, extra=vol.ALLOW_EXTRA)
@asyncio.coroutine
def async_setup(hass, config):
"""Setup the FFmpeg component."""
conf = config.get(DOMAIN, {})
hass.data[DATA_FFMPEG] = FFmpegManager(
hass,
conf.get(CONF_FFMPEG_BIN, DEFAULT_BINARY),
conf.get(CONF_RUN_TEST, DEFAULT_RUN_TEST)
)
return True
class FFmpegManager(object):
"""Helper for ha-ffmpeg."""
def __init__(self, hass, ffmpeg_bin, run_test):
"""Initialize helper."""
self.hass = hass
self._cache = {}
self._bin = ffmpeg_bin
self._run_test = run_test
@property
def binary(self):
"""Return ffmpeg binary from config."""
return self._bin
@asyncio.coroutine
def async_run_test(self, input_source):
"""Run test on this input. TRUE is deactivate or run correct.
This method must be run in the event loop.
"""
from haffmpeg import Test
if self._run_test:
# if in cache
if input_source in self._cache:
return self._cache[input_source]
# run test
ffmpeg_test = Test(self.binary, loop=self.hass.loop)
success = yield from ffmpeg_test.run_test(input_source)
if not success:
_LOGGER.error("FFmpeg '%s' test fails!", input_source)
self._cache[input_source] = False
return False
self._cache[input_source] = True
return True