From 1c46e53dcc685593eaa0d730f263ec95c16a5da8 Mon Sep 17 00:00:00 2001
From: Jan Sebechlebsky <sebechlebskyjan@gmail.com>
Date: Fri, 22 Jul 2016 17:59:30 +0200
Subject: [PATCH] avcodec/mpeg4_unpack_bframes_bsf: Check av_packet_from_data()
 return value

Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
---
 libavcodec/mpeg4_unpack_bframes_bsf.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libavcodec/mpeg4_unpack_bframes_bsf.c b/libavcodec/mpeg4_unpack_bframes_bsf.c
index aee8ccbf62..e227f58ec6 100644
--- a/libavcodec/mpeg4_unpack_bframes_bsf.c
+++ b/libavcodec/mpeg4_unpack_bframes_bsf.c
@@ -126,7 +126,11 @@ static int mpeg4_unpack_bframes_filter(AVBSFContext *ctx, AVPacket *out)
             return ret;
         }
 
-        av_packet_from_data(out, s->b_frame_buf, s->b_frame_buf_size);
+        ret = av_packet_from_data(out, s->b_frame_buf, s->b_frame_buf_size);
+        if (ret < 0) {
+            av_packet_free(&in);
+            return ret;
+        }
         if (in->size <= MAX_NVOP_SIZE) {
             /* N-VOP */
             av_log(ctx, AV_LOG_DEBUG, "Skipping N-VOP.\n");