From 8140b51aa45427bd951646775f6c3221271f35d2 Mon Sep 17 00:00:00 2001
From: Sergey Sharybin <sergey.vfx@gmail.com>
Date: Thu, 14 Sep 2017 14:55:35 +0500
Subject: [PATCH] Fix T52739: Crash loading corrupted video files

Affects both "normal" open as a video file and thumbnail generation.
---
 source/blender/imbuf/intern/anim_movie.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/source/blender/imbuf/intern/anim_movie.c b/source/blender/imbuf/intern/anim_movie.c
index 9806ff006d7..5bb91efe186 100644
--- a/source/blender/imbuf/intern/anim_movie.c
+++ b/source/blender/imbuf/intern/anim_movie.c
@@ -513,6 +513,11 @@ static int startffmpeg(struct anim *anim)
 		avformat_close_input(&pFormatCtx);
 		return -1;
 	}
+	if (pCodecCtx->pix_fmt == AV_PIX_FMT_NONE) {
+		avcodec_close(anim->pCodecCtx);
+		avformat_close_input(&pFormatCtx);
+		return -1;
+	}
 
 	frame_rate = av_get_r_frame_rate_compat(pFormatCtx->streams[videoStream]);
 	if (pFormatCtx->streams[videoStream]->nb_frames != 0) {