Add support for twitch player options

Fixes #343

README.md

@@ -133,6 +133,7 @@ Key | Options
 `wistia` | `options`: Override the [default player options](https://wistia.com/doc/embed-options#options_list)
 `mixcloud` | `options`: Override the [default player options](https://www.mixcloud.com/developers/widget/#methods)
 `dailymotion` | `params`: Override the [default player vars](https://developer.dailymotion.com/player#player-parameters)<br />`preload`: Used for [preloading](#preloading)
+`twitch` | `options`: Override the [default player options](https://dev.twitch.tv/docs/embed)
 `file` | `attributes`: Apply [element attributes](https://developer.mozilla.org/en/docs/Web/HTML/Element/video#Attributes)<br />`forceAudio`: Always render an `<audio>` element<br />`forceHLS`: Use [hls.js](https://github.com/video-dev/hls.js) for HLS streams<br />`forceDASH`: Always use [dash.js](https://github.com/Dash-Industry-Forum/dash.js) for DASH streams<br />`hlsOptions`: Override the [default `hls.js` options](https://github.com/video-dev/hls.js/blob/master/doc/API.md#fine-tuning)
 
 ##### Preloading

src/players/Twitch.js

@@ -17,7 +17,7 @@ export class Twitch extends Component {
   callPlayer = callPlayer
   playerID = PLAYER_ID_PREFIX + randomString()
   load (url, isReady) {
-    const { playsinline, onError } = this.props
+    const { playsinline, onError, config } = this.props
     const isChannel = MATCH_CHANNEL_URL.test(url)
     const id = isChannel ? url.match(MATCH_CHANNEL_URL)[1] : url.match(MATCH_VIDEO_URL)[1]
     if (isReady) {
@@ -35,7 +35,8 @@ export class Twitch extends Component {
         height: '100%',
         width: '100%',
         playsinline: playsinline,
-        autoplay: this.props.playing
+        autoplay: this.props.playing,
+        ...config.twitch.options
       })
       const { READY, PLAY, PAUSE, ENDED } = Twitch.Player
       this.player.addEventListener(READY, this.props.onReady)

src/props.js

@@ -48,6 +48,9 @@ export const propTypes = {
     }),
     mixcloud: shape({
       options: object
+    }),
+    twitch: shape({
+      options: object
     })
   }),
   onReady: func,
@@ -133,6 +136,9 @@ export const defaultProps = {
       options: {
         hide_cover: 1
       }
+    },
+    twitch: {
+      options: {}
     }
   },
   onReady: function () {},