[FFmpeg-devel] [PATCH 1/1] avformat/assenc: fix incorrect copy of null terminator

[Tim Angus]

Signed-off-by: Tim Angus <tim at ngus.net>
---
 libavformat/assenc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/assenc.c b/libavformat/assenc.c
index 1600f0a02b..07b6e3a171 100644
--- a/libavformat/assenc.c
+++ b/libavformat/assenc.c
@@ -69,7 +69,7 @@ static int write_header(AVFormatContext *s)
                 ass->trailer = trailer;
         }
 
-        avio_write(s->pb, par->extradata, header_size);
+        avio_write(s->pb, par->extradata, header_size - 1);
         if (par->extradata[header_size - 1] != '\n')
             avio_write(s->pb, "\r\n", 2);
         ass->ssa_mode = !strstr(par->extradata, "\n[V4+ Styles]");
-- 
2.25.1