From b76f6a76c6312dc551d7c37c6ded36bea7973c74 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Wed, 28 Dec 2016 11:05:25 +0100
Subject: [PATCH] h264dec: initialize field_started to 0 on each decode call

It might be incorrectly set to 1 if the previous call exited with an
error.

Bug-Id: 1019
CC: libav-stable@libav.org
---
 libavcodec/h264dec.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index 6d7aa7b53c..2a532a7ef7 100644
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -523,6 +523,7 @@ static int decode_nal_units(H264Context *h, const uint8_t *buf, int buf_size)
 
     if (!(avctx->flags2 & AV_CODEC_FLAG2_CHUNKS)) {
         h->current_slice = 0;
+        h->field_started = 0;
         if (!h->first_field)
             h->cur_pic_ptr = NULL;
         ff_h264_sei_uninit(&h->sei);