core/homeassistant/components/camera/ffmpeg.py

71 lines
2.1 KiB
Python

"""
Support for Cameras with FFmpeg as decoder.
For more details about this platform, please refer to the documentation at
https://home-assistant.io/components/camera.ffmpeg/
"""
import logging
import voluptuous as vol
from homeassistant.components.camera import (Camera, PLATFORM_SCHEMA)
from homeassistant.components.ffmpeg import (
run_test, get_binary, CONF_INPUT, CONF_EXTRA_ARGUMENTS)
import homeassistant.helpers.config_validation as cv
from homeassistant.const import CONF_NAME
DEPENDENCIES = ['ffmpeg']
_LOGGER = logging.getLogger(__name__)
DEFAULT_NAME = 'FFmpeg'
PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend({
vol.Required(CONF_INPUT): cv.string,
vol.Optional(CONF_EXTRA_ARGUMENTS): cv.string,
vol.Optional(CONF_NAME, default=DEFAULT_NAME): cv.string,
})
def setup_platform(hass, config, add_devices, discovery_info=None):
"""Setup a FFmpeg Camera."""
if not run_test(config.get(CONF_INPUT)):
return
add_devices([FFmpegCamera(config)])
class FFmpegCamera(Camera):
"""An implementation of an FFmpeg camera."""
def __init__(self, config):
"""Initialize a FFmpeg camera."""
super().__init__()
self._name = config.get(CONF_NAME)
self._input = config.get(CONF_INPUT)
self._extra_arguments = config.get(CONF_EXTRA_ARGUMENTS)
def camera_image(self):
"""Return a still image response from the camera."""
from haffmpeg import ImageSingle, IMAGE_JPEG
ffmpeg = ImageSingle(get_binary())
return ffmpeg.get_image(self._input, output_format=IMAGE_JPEG,
extra_cmd=self._extra_arguments)
def mjpeg_stream(self, response):
"""Generate an HTTP MJPEG stream from the camera."""
from haffmpeg import CameraMjpeg
stream = CameraMjpeg(get_binary())
stream.open_camera(self._input, extra_cmd=self._extra_arguments)
return response(
stream,
mimetype='multipart/x-mixed-replace;boundary=ffserver',
direct_passthrough=True
)
@property
def name(self):
"""Return the name of this camera."""
return self._name