rn: disable H.264 on iOS 10 devices

It crashes like hell. See:
https://bugs.chromium.org/p/webrtc/issues/detail?id=11002

react/features/base/config/reducer.js

@@ -2,6 +2,7 @@
 
 import _ from 'lodash';
 
+import Platform from '../react/Platform';
 import { equals, ReducerRegistry, set } from '../redux';
 
 import { CONFIG_WILL_LOAD, LOAD_CONFIG_ERROR, SET_CONFIG } from './actionTypes';
@@ -20,6 +21,15 @@ import { _cleanupConfig } from './functions';
 const INITIAL_NON_RN_STATE = {
 };
 
+/**
+ * When we should enable H.264 on mobile. iOS 10 crashes so we disable it there.
+ * See: https://bugs.chromium.org/p/webrtc/issues/detail?id=11002
+ * Note that this is only used for P2P calls.
+ *
+ * @type {boolean}
+ */
+const RN_ENABLE_H264 = navigator.product === 'ReactNative' && !(Platform.OS === 'ios' && Platform.Version === 10);
+
 /**
  * The initial state of the feature base/config when executing in a React Native
  * environment. The mandatory configuration to be passed to JitsiMeetJS#init().
@@ -41,8 +51,8 @@ const INITIAL_RN_STATE = {
     disableAudioLevels: true,
 
     p2p: {
-        disableH264: false,
-        preferH264: true
+        disableH264: !RN_ENABLE_H264,
+        preferH264: RN_ENABLE_H264
     }
 };
 

react/features/base/react/Platform.web.js

@@ -22,5 +22,14 @@ export default {
      *
      * @type {string}
      */
-    OS
+    OS,
+
+    /**
+     * The operating system version on which the application is executing.
+     * This is intentionally set to undefined so we can tell mobile and mobile web
+     * appart easier.
+     *
+     * @type {number|undefined}
+     */
+    Version: undefined
 };