avconv_opt.c:913: error: Integer Overflow L2
  ([0, `oc->nb_streams`] - 1):unsigned32.

avconv_opt.c:909:1: <LHS trace>
907. }
908. 
909. static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
     ^
910. {
911.     OutputStream *ost;

avconv_opt.c:909:1: Parameter `oc->nb_streams`
907. }
908. 
909. static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type)
     ^
910. {
911.     OutputStream *ost;

avconv_opt.c:912:20: Call
910. {
911.     OutputStream *ost;
912.     AVStream *st = avformat_new_stream(oc, NULL);
                        ^
913.     int idx      = oc->nb_streams - 1, ret = 0;
914.     char *bsf = NULL, *next, *codec_tag = NULL;

libavformat/utils.c:2652:1: Parameter `s->nb_streams`
  2650. }
  2651. 
  2652. AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c)
        ^
  2653. {
  2654.     AVStream *st;

avconv_opt.c:913:5: Binary operation: ([0, oc->nb_streams] - 1):unsigned32
911.     OutputStream *ost;
912.     AVStream *st = avformat_new_stream(oc, NULL);
913.     int idx      = oc->nb_streams - 1, ret = 0;
         ^
914.     char *bsf = NULL, *next, *codec_tag = NULL;
915.     double qscale = -1;
