From 5063a18f5635008b2a45ada1f8c1e21e20450029 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Fri, 16 Oct 2015 22:25:20 +0200
Subject: [PATCH] avcodec/ffv1dec: update progress in case of broken pointer
 chains

Fixes deadlock
Fixes Ticket4932

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/ffv1dec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c
index c32f7178c5..d9e1e73fd6 100644
--- a/libavcodec/ffv1dec.c
+++ b/libavcodec/ffv1dec.c
@@ -940,6 +940,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPac
         else                     v = buf_p - c->bytestream_start;
         if (buf_p - c->bytestream_start < v) {
             av_log(avctx, AV_LOG_ERROR, "Slice pointer chain broken\n");
+            ff_thread_report_progress(&f->picture, INT_MAX, 0);
             return AVERROR_INVALIDDATA;
         }
         buf_p -= v;