[FFmpeg-cvslog] avcodec/parser: assert that there is a past buffer if theres a reference into the past

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Fri Jun 16 01:35:35 2017 +0200| [c0607d88ee1fbd5a5272abe415ee83cc10310021] | committer: Michael Niedermayer

avcodec/parser: assert that there is a past buffer if theres a reference into the past

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c0607d88ee1fbd5a5272abe415ee83cc10310021
---

 libavcodec/parser.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavcodec/parser.c b/libavcodec/parser.c
index 30373c7622..670680ea7c 100644
--- a/libavcodec/parser.c
+++ b/libavcodec/parser.c
@@ -285,6 +285,8 @@ int ff_combine_frame(ParseContext *pc, int next,
         return -1;
     }
 
+    av_assert0(next >= 0 || pc->buffer);
+
     *buf_size          =
     pc->overread_index = pc->index + next;