From f244f662b6cee6ca66c411105fed3eb12b8e1ebf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stanis=C5=82aw=20Chmiela?= <sjchmiela@gmail.com>
Date: Thu, 28 Apr 2016 14:29:09 +0200
Subject: [PATCH] Add observer for _player rate

---
 RCTVideo.m | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/RCTVideo.m b/RCTVideo.m
index 9514c18a..14dbf5bc 100644
--- a/RCTVideo.m
+++ b/RCTVideo.m
@@ -8,6 +8,7 @@ static NSString *const statusKeyPath = @"status";
 static NSString *const playbackLikelyToKeepUpKeyPath = @"playbackLikelyToKeepUp";
 static NSString *const playbackBufferEmptyKeyPath = @"playbackBufferEmpty";
 static NSString *const readyForDisplayKeyPath = @"readyForDisplay";
+static NSString *const playbackRate = @"rate";
 
 @implementation RCTVideo
 {
@@ -220,6 +221,7 @@ static NSString *const readyForDisplayKeyPath = @"readyForDisplay";
 
   _player = [AVPlayer playerWithPlayerItem:_playerItem];
   _player.actionAtItemEnd = AVPlayerActionAtItemEndNone;
+  [_player addObserver:self forKeyPath:playbackRate options:0 context:nil];
 
   const Float64 progressUpdateIntervalMS = _progressUpdateInterval / 1000;
   // @see endScrubbing in AVPlayerDemoPlaybackViewController.m of https://developer.apple.com/library/ios/samplecode/AVPlayerDemo/Introduction/Intro.html
@@ -628,6 +630,7 @@ static NSString *const readyForDisplayKeyPath = @"readyForDisplay";
 - (void)removeFromSuperview
 {
   [_player pause];
+  [_player removeObserver:self forKeyPath:playbackRate];
   _player = nil;
 
   [self removePlayerLayer];