From b420f5b41bfbf5c60c2fa45928638d6ce5196c8a Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Mon, 5 Nov 2018 14:00:53 +0400
Subject: [PATCH] Fix crash in round video playback.

---
 .../media/player/media_player_round_controller.cpp            | 4 +++-
 .../SourceFiles/media/player/media_player_round_controller.h  | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/Telegram/SourceFiles/media/player/media_player_round_controller.cpp b/Telegram/SourceFiles/media/player/media_player_round_controller.cpp
index b0c07fb5a..4d4abdbaf 100644
--- a/Telegram/SourceFiles/media/player/media_player_round_controller.cpp
+++ b/Telegram/SourceFiles/media/player/media_player_round_controller.cpp
@@ -70,7 +70,9 @@ RoundController::RoundController(
 	Auth().data().itemRepaintRequest(
 	) | rpl::start_with_next([=](not_null<const HistoryItem*> item) {
 		if (item == _context) {
-			checkReaderState();
+			crl::on_main(this, [=] {
+				checkReaderState();
+			});
 		}
 	}, lifetime());
 }
diff --git a/Telegram/SourceFiles/media/player/media_player_round_controller.h b/Telegram/SourceFiles/media/player/media_player_round_controller.h
index 303db6365..9328f43ae 100644
--- a/Telegram/SourceFiles/media/player/media_player_round_controller.h
+++ b/Telegram/SourceFiles/media/player/media_player_round_controller.h
@@ -26,7 +26,9 @@ namespace Player {
 struct TrackState;
 enum class State;
 
-class RoundController : private base::Subscriber {
+class RoundController
+	: public base::has_weak_ptr
+	, private base::Subscriber {
 	struct CreateTag;
 
 public: