Add dlna_dmr component (#5474)

* Add dlna_dmr component

* Remove no longer supported features

* Add warning about picky devices

* Add UDN to configuration; requested changes from review

* ✏️ Tweaks

* ⬆️ ha_release to 0.74

* Update media_player.dlna_dmr.markdown

* Changes after review by @MartinHjelmare

* Update media_player.dlna_dmr.markdown

source/_components/discovery.markdown

@@ -21,6 +21,7 @@ Home Assistant can discover and automatically configure [zeroconf](https://en.wi
  * [Bose Soundtouch speakers](/components/media_player.soundtouch/)
  * [Denon network receivers](/components/media_player.denonavr/)
  * [DirecTV receivers](/components/media_player.directv/)
+ * [DLNA DMR enabled devices](/components/media_player.dlna_dmr/)
  * [Frontier Silicon internet radios](/components/media_player.frontier_silicon/)
  * [Google Cast](/components/media_player.cast/)
  * [HomeKit](/components/homekit_controller/)
@@ -79,6 +80,7 @@ Valid values for ignore are:
  * `bose_soundtouch`: Bose Soundtouch speakers
  * `denonavr`: Denon network receivers
  * `directv`: DirecTV receivers
+ * `dlna`: DLNA DMR enabled devices
  * `frontier_silicon`: Frontier Silicon internet radios
  * `google_cast`: Google Cast
  * `harmony`: Logitech Harmony Hub

source/_components/media_player.dlna_dmr.markdown

@@ -0,0 +1,50 @@
+---
+layout: page
+title: "DLNA DMR"
+description: "Instructions on how to integrate a DLNA DMR device into Home Assistant."
+date: 2018-06-01 14:27
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: dlna.png
+ha_category: Media Player
+featured: false
+ha_release: 0.76
+ha_iot_class: "Local Push"
+---
+
+The `dlna_dmr` platform allows you to control a [DLNA Digital Media Renderer](https://www.dlna.org/), such as DLNA enabled TVs or radios.
+
+Please note that some devices, such as Samsung TVs, are rather picky about the source used to play from. The TTS service might not work in combination with these devices. If the play_media service does not work, please try playing from a DLNA/DMS (such as [MiniDLNA](https://sourceforge.net/projects/minidlna/)).
+
+## {% linkable_title Configuration %}
+
+To add a DLNA DMR device to your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+media_player:
+  - platform: dlna_dmr
+    url: http://192.168.0.10:9197/dmr
+```
+
+{% configuration %}
+url:
+  description: The URL to the device description, e.g., `http://192.168.0.10:9197/dmr`.
+  required: true
+  type: string
+listen_ip:
+  description: IP to listen on for events from the device. Only set this when the IP is not detected properly.
+  required: false
+  type: string
+listen_port:
+  description: Port to listen on for events from the device.
+  required: false
+  default: 8301
+  type: int
+name:
+  description: The name you would like to give to the device, e.g., `TV living room`.
+  required: false
+  type: string
+{% endconfiguration %}