From a95fdac4c6203037a4690a4f7960223c8daad73e Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michael@niedermayer.cc>
Date: Tue, 16 Aug 2016 23:05:27 +0200
Subject: [PATCH] avcodec/ffv1enc: do not offset null pointers
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
libavcodec/ffv1enc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c
index 0a725913960..dc9c499c708 100644
--- a/libavcodec/ffv1enc.c
+++ b/libavcodec/ffv1enc.c
@@ -1007,8 +1007,8 @@ static int encode_slice(AVCodecContext *c, void *arg)
int ret;
RangeCoder c_bak = fs->c;
const uint8_t *planes[3] = {p->data[0] + ps*x + y*p->linesize[0],
- p->data[1] + ps*x + y*p->linesize[1],
- p->data[2] + ps*x + y*p->linesize[2]};
+ p->data[1] ? p->data[1] + ps*x + y*p->linesize[1] : NULL,
+ p->data[2] ? p->data[2] + ps*x + y*p->linesize[2] : NULL};
fs->slice_coding_mode = 0;
if (f->version > 3) {
--
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