ffmpeg.c:3112: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `new_audio_stream`.

ffmpeg.c:3112:5: Call
3110.     }
3111.     oc = output_files[nb_output_files - 1];
3112.     new_audio_stream(oc);
          ^
3113. }
3114. 

ffmpeg.c:2993:1: <LHS trace>
2991. }
2992. 
2993. static void new_audio_stream(AVFormatContext *oc)
      ^
2994. {
2995.     AVStream *st;

ffmpeg.c:2993:1: Parameter `oc->nb_streams`
  2991. }
  2992. 
  2993. static void new_audio_stream(AVFormatContext *oc)
        ^
  2994. {
  2995.     AVStream *st;

ffmpeg.c:2999:10: Call
  2997.     int codec_id, i;
  2998. 
  2999.     st = av_new_stream(oc, oc->nb_streams);
                 ^
  3000.     if (!st) {
  3001.         fprintf(stderr, "Could not alloc stream\n");

libavformat/utils.c:2160:1: Parameter `s->nb_streams`
    2158. }
    2159. 
    2160. AVStream *av_new_stream(AVFormatContext *s, int id)
          ^
    2161. {
    2162.     AVStream *st;

ffmpeg.c:3006:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `new_audio_stream` 
  3004.     avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
  3005. 
  3006.     bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
            ^
  3007.     audio_bitstream_filters= NULL;
  3008. 
