ffmpeg.c:3324: error: Integer Overflow L2
  ([0, +oo] - 1):unsigned32 by call to `new_audio_stream`.

ffmpeg.c:3324:5: Call
3322.     }
3323.     oc = output_files[nb_output_files - 1];
3324.     new_audio_stream(oc);
          ^
3325. }
3326. 

ffmpeg.c:3192:1: <LHS trace>
3190. }
3191. 
3192. static void new_audio_stream(AVFormatContext *oc)
      ^
3193. {
3194.     AVStream *st;

ffmpeg.c:3192:1: Parameter `oc->nb_streams`
  3190. }
  3191. 
  3192. static void new_audio_stream(AVFormatContext *oc)
        ^
  3193. {
  3194.     AVStream *st;

ffmpeg.c:3198:10: Call
  3196.     enum CodecID codec_id;
  3197. 
  3198.     st = av_new_stream(oc, oc->nb_streams);
                 ^
  3199.     if (!st) {
  3200.         fprintf(stderr, "Could not alloc stream\n");

libavformat/utils.c:2354:1: Parameter `s->nb_streams`
    2352. }
    2353. 
    2354. AVStream *av_new_stream(AVFormatContext *s, int id)
          ^
    2355. {
    2356.     AVStream *st;

ffmpeg.c:3205:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `new_audio_stream` 
  3203.     avcodec_get_context_defaults2(st->codec, CODEC_TYPE_AUDIO);
  3204. 
  3205.     bitstream_filters[nb_output_files][oc->nb_streams - 1]= audio_bitstream_filters;
            ^
  3206.     audio_bitstream_filters= NULL;
  3207. 
