libavformat/avidec.c:545: error: Buffer Overrun L1
  Offset: -1 Size: 20.

libavformat/avidec.c:232:1: <Offset trace>
230. }
231. 
232. static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
     ^
233. {
234.     AVIContext *avi = s->priv_data;

libavformat/avidec.c:232:1: Parameter `s->nb_streams`
230. }
231. 
232. static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
     ^
233. {
234.     AVIContext *avi = s->priv_data;

libavformat/avidec.c:232:1: <Length trace>
230. }
231. 
232. static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
     ^
233. {
234.     AVIContext *avi = s->priv_data;

libavformat/avidec.c:232:1: Parameter `s->streams[*]`
230. }
231. 
232. static int avi_read_header(AVFormatContext *s, AVFormatParameters *ap)
     ^
233. {
234.     AVIContext *avi = s->priv_data;

libavformat/avidec.c:545:22: Array access: Offset: -1 Size: 20
543.                 AVRational active, active_aspect;
544. 
545.                 st = s->streams[stream_index];
                          ^
546.                 get_le32(pb);
547.                 get_le32(pb);
