Spliting doc for ffmpeg binary sensor (#1924)

source/_components/binary_sensor.ffmpeg_motion.markdown

@@ -0,0 +1,60 @@
+---
+layout: page
+title: "FFmpeg Motion Binary Sensor"
+description: "Instructions on how to integrate an FFmpeg-based motion binary sensor"
+date: 2016-08-25 08:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: ffmpeg.png
+ha_category: Binary Sensor
+ha_release: 0.27
+---
+
+
+The `ffmpeg` platform allows you to use any video feed with [FFmpeg](http://www.ffmpeg.org/) for motion sensors in Home Assistant.
+
+<p class='note'>
+If the `ffmpeg` process is broken, the sensor will be unavailable. To controll the ffmpeg process of sensor, use the service *ffmpeg.start*, *ffmpeg.stop*, *ffmpeg.restart*.
+</p>
+
+### {% linkable_title Motion %}
+
+FFmpeg doesn't have a motion detection filter, but can use a scene filter to detect a new scene/motion. You can set how much needs to change in order to detect motion with the option 'changes', the percent value of change between frames. If you want a really small value for 'changes', you can also add a denoise filter.
+
+To add FFmpeg with motion detection to your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+binary_sensor:
+  - platform: ffmpeg
+    input: FFMPEG_SUPPORTED_INPUT
+```
+
+Configuration variables:
+
+- **input** (*Required*): An FFmpeg-compatible input file, stream, or feed.
+- **name** (*Optional*): Override the name of your camera for the frontend.
+- **initial_state** (*Optional*): Start `ffmpeg` with Home Assistant. Defaults to `true`.
+- **changes** (*Optional*): How much needs to change between two frames to detect it as motion (a lower value is more sensitive). Defaults to 10%.
+- **reset** (*Optional*): The time to reset the state after no new motion is detected. Defaults to 20 seconds.
+- **repeat** (*Optional*): How many events need to be detected in *repeat_time* in order to trigger a motion. Defaults to 0 repeats (deactivated).
+- **repeat_time** (*Optional*): The span of time *repeat* events need to occur in before triggering a motion. Defaults to 0 seconds (deactivated).
+- **extra_arguments** (*Optional*): Extra options to pass to `ffmpeg`, e.g. video denoise filtering.
+
+To experiment with values (changes/100 is the scene value in `ffmpeg`):
+
+```bash
+$ ffmpeg -i YOUR_INPUT -an -filter:v select=gt(scene\,0.1) -f framemd5 -
+```
+
+If you are running into trouble with this sensor, please refer to the [troubleshooting section](/components/ffmpeg/#troubleshooting).
+
+#### {% linkable_title Tipps %}
+
+- Use motion only in a customer area with [crop filter](https://ffmpeg.org/ffmpeg-filters.html#crop):
+
+```yaml
+extra_arguments: -filter:v "crop=100:100:12:34"
+```